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JP2011250113

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DESCRIPTION JP2011250113
A display system, a display control method, and a computer program are provided that can be
controlled to output voice effectively when a plurality of display devices are juxtaposed.
SOLUTION: The control device 2 is connected to a group of display devices 1 juxtaposed to
constitute multi-vision, and a control unit 20 of the control device 2 acquires information on the
arrangement of the display devices 1 group. According to the position in the display device group
1, the determination of the presence or absence of the audio output and the selection of the
channel of the audio to be output are performed. [Selected figure] Figure 1
Display system, display control method and computer program
[0001]
The present invention relates to a system for outputting an image and a sound using a plurality
of display devices respectively provided with a speaker corresponding to a plurality of channels,
and can be controlled to effectively output a sound when a plurality of display devices are
juxtaposed. The present invention relates to a display system, display control method and
computer program.
[0002]
A system called so-called multi-vision in which a plurality of display devices using an LCD (Liquid
Crystal Display) or a plasma display are arranged to form one large display screen is used.
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The multi-vision system is used to display an image on a large screen in a wide area such as an
entertainment venue or a public facility for use in live broadcasting or advertising.
[0003]
In a multivision system, a video signal including a television signal displayed on a large screen by
a control device, a video signal, or a screen output signal from a personal computer is enlarged
by a video enlargement device and divided by the number of display devices. Send each one.
Each display device displays the video signal sent from the control device to realize one large
screen as a whole.
[0004]
In recent years, with technological progress, the width of the front bezel portion of a display
device using an LCD and a plasma display has become narrower than before, and the ratio of the
panel portion when viewed from the front increases. When a plurality of display devices are used
side by side, if the bezel width is wide, the part where the image of the border part of the panel is
not displayed becomes wide and it is difficult as a whole even though it is a large screen and
there are few merits as a multivision system. However, since the bezel portion is narrowed, a
powerful image display can be realized by forming a large screen using a plurality of display
devices, and the merit of using a multivision system is increasing.
[0005]
When using a multi-vision system, it becomes an issue how to realize division of video. In order
to decide which of the divided video signals to be output to which display device is to be output
by design in advance, when using an arbitrary number of display devices, it is necessary to carry
out the setting operation every time, and the operation is complicated. It is.
[0006]
In Patent Document 1, when two display devices are arranged side by side to form one screen,
detectors are provided at the top, bottom and left and right sides of each display device so that
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each display device can recognize left and right by itself. An invention is disclosed in which each
display device displays a part corresponding to the left and right positions of the received video
signal. Further, Patent Document 2 discloses an invention that performs signal processing of
sound corresponding to an image displayed on a display in a system combining a plurality of
displays and a plurality of speakers installed so as to surround them. ing.
[0007]
JP, 2007-164060, A JP, 2008-109209, A
[0008]
When using a multi-vision system, not only control of video division, but also control of how to
output audio is an issue.
In the configuration in which the sound is similarly output to each display device and the sound
of the left and right channels is output by the stereo speakers included in each display device, the
sound does not make sense of being divided into the left and right channels, but the sense of
presence, The force is lost. On the other hand, although it is possible to separately provide a
speaker without outputting sound from the speaker of each display device, an extra cost is
incurred even though the performance of the speaker incorporated in each display device is
enhanced in this configuration. And space is required.
[0009]
The invention disclosed in Patent Document 1 proposes a configuration in which left and right
speakers can be appropriately selected also in the case of using two display devices with regard
to audio output. However, there is no description or suggestion about the setting in the case of
using three or more display devices. Since the invention disclosed in Patent Document 1 is a
setting in which two units are used, after the display device itself recognizes left and right, it is
possible to select whether to output the sound of any channel based on the setting made in
advance. However, when it is unclear how many display devices are to be used, it is not possible
to determine which position oneself is by the detector alone, and it is unclear which part of the
received video signal is to be displayed. It is not clear which channel's audio to output. Therefore,
it is not possible to automatically select according to various arrangements, and the convenience
is insufficient to cope with various multivision systems.
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[0010]
According to the invention disclosed in Patent Document 2, assuming that different images are
displayed on a plurality of displays, an audio corresponding to an active screen, that is, an image
selected by the user is selected, and the selected image is selected. It is a structure by which
selection of the speaker of the position corresponding to the display to display is made,
Comprising: It is not a structure which arranges and uses the display apparatus originally
provided with a speaker from the first place.
[0011]
As described above, although the merit of realizing a multi-vision system using a plurality of
display devices in recent years is increasing, it is possible to effectively output sound from the
display device according to various layouts of the display devices. Until now, no particular
consideration has been given to the technology for making it possible.
[0012]
The present invention has been made in view of such circumstances, and provides a display
system, a display control method, and a computer program that can be controlled to output voice
effectively when a plurality of display devices are arranged. The purpose is
[0013]
A display system according to the present invention at least laterally juxtapose a plurality of
display devices integrally including a panel for displaying an image and one or more speakers for
outputting multi-channel audio corresponding to the image displayed on the panel. In the display
system for displaying at least one image by the plurality of display devices, each display device in
the group of juxtaposed display devices for displaying the one image, the audio output by the
speaker of each of the plurality of display devices Control means for controlling in accordance
with the position of
[0014]
In the display system according to the present invention, the control means is means for
acquiring position information of the display devices in the parallel direction, and according to
the acquired position information of each display device, audio from each speaker provided in
the display device The apparatus is characterized by comprising determination means for
determining the presence or absence of an output, and selection means for selecting a channel of
audio output from each speaker provided in the display device according to the acquired
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positional information of each display device.
[0015]
In the display system according to the present invention, the selection means selects the right (or
left) channel when the position information corresponds to the position on the right (or left) of
the center line of the juxtaposed display group. It is characterized by
[0016]
In the display system according to the present invention, when the position information
corresponds to the center line of the juxtaposed display device group, the right (or left) speaker
of the display device receives the sound of the right (or left) channel. It is characterized in that,
when selected and the position information corresponds to the right side (or left side) of the
center line, the sound of the right (or left) channel is selected.
[0017]
In the display system according to the present invention, when the selection means selects the
sound of the right (or left) channel for the speaker of one display device, the position information
of the one display device and the juxtaposed display device group It is characterized in that the
sound of the left (or right) channel is selected for the speaker of the display device of the position
information which is symmetrical with respect to the center line.
[0018]
The display system according to the present invention is characterized in that the determination
means determines that the sound output is valid when the position information corresponds to
an outer position in the group of juxtaposed display devices.
[0019]
In the display system according to the present invention, when the position information
corresponds to the right side (or left side) of the center line of the juxtaposed display group, the
determination means determines that the audio output by the left (or right) speaker is null. It is
characterized in that it is done.
[0020]
The display system according to the present invention is characterized in that the plurality of
display devices are arranged in a plurality of stages, and the determination means determines
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that the output is null every other stage or every other stage. .
[0021]
The display system according to the present invention is characterized in that the determining
means determines that the audio output is valid only when the position information corresponds
to the lowermost stage.
[0022]
In the display system according to the present invention, when the determination means
determines that the audio output from the speaker of one display device is present, the position
information of the one display device and the center line of the juxtaposed display group are
used as a reference. It is characterized in that the audio output from the speaker of the display
device of the position information in symmetrical positional relationship is determined to be
present.
[0023]
In the display system according to the present invention, the control means comprises means for
outputting a screen for receiving a selection of a display device provided with a speaker for
outputting voice or a selection of a channel for voice to be outputted to a speaker of each display
device. It features.
[0024]
A display control method according to the present invention includes at least a plurality of
display devices integrally including a panel for displaying an image and one or more speakers for
outputting multi-channel audio corresponding to the image displayed on the panel in at least a
lateral direction. In a display system in which at least one image is displayed on the plurality of
display devices in parallel, in the method of controlling image display on a panel of each display
device and audio output on a speaker of each display device The position information in the
juxtaposition direction is acquired, and the presence or absence of the audio output of each
speaker provided in the display device is determined and acquired according to the position in
the juxtaposed display device group displaying the one image indicated by the acquired position
information According to the position in the juxtaposition display device group indicated by the
position information, the channel of the sound output from the speaker of the display device is
selected.
[0025]
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A computer program according to the present invention includes a computer connected to a
plurality of display devices integrally provided with a panel for displaying an image and one or
more speakers for outputting multi-channel audio corresponding to the image displayed on the
panel. Computer program for controlling image display on a panel of each display device and
audio output on a speaker of each display device, the computer acquires means for acquiring
positional information of the display devices in the parallel direction, the acquired positional
information is Means for determining the presence or absence of audio output of each speaker
provided in the display device according to the position in the parallel display device group
displaying the one image to be shown, and within the parallel display device group indicated by
the acquired position information Function as a means for selecting a channel of audio output
from the speaker of the display device according to the position of To.
[0026]
In the present invention, when a plurality of display devices integrally provided with speakers are
arranged to form a side-by-side display device group for displaying one image, the control means
is provided to control the audio output of each display device. By means of the means, the audio
output from the speakers of each display device is controlled according to the position within the
array of each display device.
As a result, when the control means acquires the information on the arrangement of the display
devices, multi-channel audios are appropriately output according to the position information of
each display device without each display device determining itself.
In addition, the arrangement of the display device is configured to be juxtaposed at least in the
horizontal direction, and may be stacked in the vertical direction to be in a grid shape or in a
honeycomb shape.
[0027]
In the present invention, the control means determines the presence / absence itself of the audio
output of each of the one or more speakers provided in the display device according to the
position in the juxtaposed display device group indicated by the position information of the
display device. Even when there is, it is selected which of the plurality of channels to output the
sound of.
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By permitting the presence of a display device that does not output audio into the system, it is
possible to reduce the power consumption required for audio output, and at the same time
effectively output multi-channel audio.
Then, the control of the right channel sound is performed such that the sound of the left channel
is output from the speaker of the display device positioned on the left side from the speaker of
the display device positioned on the right side toward the parallel display group It is possible.
Furthermore, the sound of the bass channel can be output from the speaker of the lower display
device.
There may be speakers from which no sound is output, and the sound of each channel is
appropriately selected by each speaker, whereby multi-channel sound is effectively output.
[0028]
In the present invention, based on the center of the juxtaposed display group constituting one
image, the left display panel speaker outputs the left channel audio, and the right display panel
speaker outputs the right channel audio. Is automatically selected.
Thereby, stereo sound including the left and right channels is effectively output.
Similarly, a speaker of the display device located below the center may be automatically selected
to output a bass channel.
[0029]
In the present invention, in the case where an odd number of display devices are juxtaposed in
the horizontal direction to constitute a juxtaposed display device group, the display devices are
arranged on the longitudinal center line of all the plurality of display devices constituting one
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image. Therefore, in the display device on the center line, it is selected that the sound of the right
channel is output from the right side speaker and the sound of the left channel is output from the
left side speaker as usual.
The speaker of the display device located to the right of the center line is selected to output the
sound of the right channel.
Thereby, multi-channel audio including the left and right channels is effectively output.
[0030]
In the present invention, when the sound of the right channel is selected with respect to the
speaker of one display device with reference to the center of the juxtaposed display devices
constituting one image, the sound is symmetrical to the one display device. The audio of the left
channel is automatically selected from the speakers of the arranged display device.
The same applies to the left and the right.
As a result, stereo sound is output symmetrically in a balanced manner.
[0031]
In the present invention, sound is output only from the speakers of the display devices located
outside the group of juxtaposed display devices constituting one image.
As a result, it is possible to suppress the power consumption required for audio output in the
entire system, and at the same time, the balance of the left and right or deep bass audio becomes
clear, and multi-channel audio is effectively output.
[0032]
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In the present invention, in the display device whose display position is on the right side with
respect to the center of the juxtaposed display device group constituting one image, audio output
is possible only with the right speaker, and the display device on the left side Then, audio output
is possible only with the left speaker.
As a result, it is possible to suppress the power consumption required for audio output in the
entire system, and at the same time, the balance of the left and right or deep bass audio becomes
clear, and multi-channel audio is effectively output.
[0033]
In the present invention, display devices are juxtaposed in a plurality of stages, and a display
device that outputs a sound and a display device that does not output a sound are set every one
or a plurality of stages.
As a result, it is possible to reduce the power consumption required for audio output as a whole
system.
[0034]
In the present invention, the sound is output only from the speaker of the display device
arranged at the bottom.
As a result, it is possible to reduce the power consumption required for audio output as a whole
system.
[0035]
In the present invention, when it is determined that there is an audio output with respect to the
speaker of one display device with reference to the center of the juxtaposed display devices
constituting one image, the speaker is disposed at a position symmetrical to the one display
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device. The audio output from the speaker of the display device being selected is also
automatically determined to be valid. As a result, the voices are output symmetrically in a
balanced manner.
[0036]
In the present invention, with respect to each display device of the juxtaposed display device
group constituting one image, the presence or absence of the output of the sound from the
speaker or the selection of the channel from each speaker can be arbitrarily made through the
screen. Thus, the user can freely select and can easily set the display system with various
configurations.
[0037]
According to the present invention, it is possible to effectively use the speakers contained in each
display device without separately using a speaker in the multivision system to prevent the mixing
of multi-channel sound or the deterioration of the sound effect, and the multi-channel system.
Audio can be output effectively. In addition, by permitting the presence of a display device that
does not output sound among a plurality of display devices that configure one image, it is
possible to reduce the power consumption required for audio output as a whole system.
[0038]
FIG. 1 is a schematic view schematically showing a configuration of a display system in
Embodiment 1. It is a flowchart which shows an example of the process sequence of the audio ¦
voice output control by the control part of the control apparatus which comprises the display
system of Embodiment 1. FIG. It is a flowchart which shows an example of the determination
processing procedure of the presence or absence of the audio ¦ voice output by the control part
of the control apparatus which comprises the display system of Embodiment 1. FIG. It is a
flowchart which shows another example of the determination processing procedure of the
presence or absence of the audio ¦ voice output by the control part of the control apparatus
which comprises the display system of Embodiment 1. FIG. It is a flowchart which shows another
example of the determination processing procedure of the presence or absence of the audio ¦
voice output by the control part of the control apparatus which comprises the display system of
Embodiment 1. FIG. FIG. 7 is a flowchart showing an example of an audio channel selection
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processing procedure by the control unit of the control device in Embodiment 1. FIG. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel. It is an
image figure about the juxtaposition pattern of the juxtaposition display group, the pattern of the
speaker to which the sound is output, and the pattern of the selected audio channel.
It is an image figure about the juxtaposition pattern of the juxtaposition display group, the
pattern of the speaker to which the sound is output, and the pattern of the selected audio
channel. It is an image figure about the juxtaposition pattern of the juxtaposition display group,
the pattern of the speaker to which the sound is output, and the pattern of the selected audio
channel. It is an image figure about the juxtaposition pattern of the juxtaposition display group,
the pattern of the speaker to which the sound is output, and the pattern of the selected audio
channel. It is a flowchart which shows an example of the process sequence of the audio ¦ voice
output control by the control part of the control apparatus which comprises the display system
of Embodiment 2. FIG. FIG. 18 is an explanatory drawing showing an example of a custom screen
output by the control unit in Embodiment 2; FIG. 18 is an explanatory drawing showing an
example of a custom screen output by the control unit in Embodiment 2; FIG. 18 is an
explanatory drawing showing an example of a custom screen output by the control unit in
Embodiment 2;
[0039]
The present invention will be specifically described below based on the drawings showing the
embodiments thereof.
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[0040]
First Embodiment FIG. 1 is a schematic view schematically showing a configuration of a display
system in a first embodiment.
The display system includes a plurality of display devices 1, 1, ..., and a control device 2 to which
the display device 1 is connected. In FIG. 1, nine display devices 1 are used. They are juxtaposed
in a grid pattern in three rows and three columns to constitute a juxtaposed display group.
[0041]
The display device 1 includes a panel 11, a left speaker 12, and a right speaker 13. The panel 11
uses an LCD or a plasma display. The left speaker 12 is provided on the lower left side toward
the front of the display device 1. The right speaker 13 is provided on the lower right side toward
the front of the display device 1. In addition, the speakers may be additionally provided on the
left side and the right side, respectively, or a deep bass speaker may be provided at the lower
center.
[0042]
The display device 1 displays an image on the panel 11 based on a video signal (image signal)
output from the control device 2 as described later. Similarly, the display device 1 causes the left
speaker 12 and the right speaker 13 to output audio based on an audio signal included in the
video signal or an audio signal output together with the image signal.
[0043]
The control device 2 includes a control unit 20, a storage unit 21, an output unit 22, and an input
unit 23, using a personal computer. The control unit 20 uses a CPU (Central Processing Unit).
The control unit 20 reads the control program 2P stored in the storage unit 21 into the built-in
memory and executes it, and causes the computer to function as a control unit of the display
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system according to the present invention. The storage unit 21 uses an external storage device
such as a hard disk drive or a solid state drive (SSD). The storage unit 21 stores the control
program 2P, as well as video data in which an image to be displayed and output on the display
device 1 and audio are multiplexed, and data such as setting conditions used for control by the
control unit 20. Ru. The output unit 22 is connected to the display device 1, and outputs a video
signal (image signal and audio signal) to the display device 1 based on an instruction from the
control unit 20. When the display device 1 is connected, the output unit 22 detects this and
notifies the control unit 20. Thus, the control unit 20 can recognize the number of display
devices 1 connected via the output unit 22. The input unit 23 is connected to a user interface
such as a keyboard or a mouse (not shown), and has a function of receiving information input by
the user and notifying the control unit 20 of the information.
[0044]
The control device 2 acquires the number and arrangement information of the plurality of
display devices 1, 1, ... connected via the output unit 22 by the processing of the control unit 20
based on the control program 2P, and the arrangement of each display device 1 Depending on
the position in, it controls the presence / absence of audio output and the audio channel to be
output.
[0045]
Control processing of audio output to the display devices 1, 1,... By the control unit 20 of the
control device 2 will be described with reference to a flowchart.
[0046]
FIG. 2 is a flowchart showing an example of a processing procedure of audio output control by
the control unit 20 of the control device 2 constituting the display system of the first
embodiment.
[0047]
The control unit 20 acquires array information of the connected display device 1 (step S1).
The arrangement information may be stored in advance in the storage unit 21 or may be input
by the user via the input unit 23.
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The array information is, for example, a pair of identification information of each display device 1
and position information (coordinate information).
The position information is represented, for example, by the number of stages and the number of
columns. In the case of arranging nine display devices 1 as shown in FIG. 1, the position of the
upper left display device is set to the 0th row 0 column (0, 0), and the upper right is 0th row 2
columns (0, 0) 2) The lower left corner is the second row 0 column (2, 0), and the lower right is
the second row second row (2, 2) so that identification is possible. In addition, position
information is associated with each of the plurality of connection terminals of the output unit 22
in advance, position information of the display device 1 connected to each connection terminal is
automatically recognized, and the array is integrated by integrating the position information. It
may be configured to be specified. At this time, based on the position information (0, 0) to (2, 2)
of the display device 1, the control unit 20 sets the center of the plurality of display devices 1
constituting the multivision to the center of the number of stages and the number of rows of
position information. The value is taken as (1, 1), and it is distinguished that the display device in
the 0th column is on the right side, the display device 1 in the 1st column is on the center line,
and the display device 1 in the second column is on the left.
[0048]
Even when nine display devices 1 are used side by side, one image is displayed using four display
devices 1 among them, and in the other five display devices 1, each image or It is also
conceivable to display one image by two units or three units. In this case, the position
information (0, 0) to (1, 1) of the four display devices 1 is used, and the center is (0.5, 0.5). The
eye display device 1 may be distinguished as being on the left side.
[0049]
The control unit 20 selects one of the connected display devices 1 (step S2), and specifies the
position of the selected display device (step S3). The method of specifying the position can be
specified by distinguishing it from the position information of the display device selected as
described above.
[0050]
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The control unit 20 determines the presence or absence of audio output of each speaker (the left
speaker 12 and the right speaker 13) included in the selected display device 1 based on the
specified position (step S4). Details of the determination of the presence or absence of the sound
output of each speaker will be described later.
[0051]
Next, the control unit 20 selects the channel of each speaker (the left speaker 12 and the right
speaker 13) included in the selected display device 1 based on the position specified for each
display device 1 (step S5). The details of channel selection for each speaker will also be described
later.
[0052]
The control unit 20 determines whether or not all the connected display devices 1 have been
selected (step S6), and when it is determined that it has not been selected (S6: NO), the process
returns to step S2 and the next The process is performed on the display device 1 of FIG. When it
is determined that all the display devices 1 have been selected (S6: YES), the control unit 20 ends
the control processing of audio output.
[0053]
About the determination process of the presence or absence of the audio ¦ voice output of each
speaker in step S4, a several example is mentioned and a detail is demonstrated.
[0054]
FIG. 3 is a flow chart showing an example of the procedure for determining the presence or
absence of audio output by the control unit 20 of the control device 2 constituting the display
system of the first embodiment.
[0055]
The control unit 20 determines whether or not the selected one display device 1 corresponds to
the outermost position among the plurality of display devices 1 configuring the multivision based
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on the acquired position information (step S41).
[0056]
When it is determined that the control unit 20 corresponds to the outermost position in step S41
(S41: YES), the control unit 20 determines that the sound output of the speaker (the left speaker
12 and the right speaker 13) of the display device 1 is present (step S42), the process returns to
step S5 shown in the flowchart of FIG.
At this time, the control unit 20 determines that the speakers of the display device 1 that is
symmetrical in the left-right symmetry corresponding to the outermost position are set to have
sound output.
[0057]
In the example of the position information described above, the control unit 20 determines that
the position information of the selected display device 1 corresponds to the outside position
when corresponding to the 0th column and the 2nd column.
The outer side may include the 0th stage and the second stage.
Further, not limited to the outermost side, when six display devices 1 are juxtaposed in the lateral
direction, the display device 1 one inner side may be determined to be the outer side.
[0058]
When it is determined that the control unit 20 does not correspond to the outermost position in
step S41 (S41: NO), the control unit 20 determines that the audio output of the speakers (left
speaker 12 and right speaker 13) of the display device 1 is null ( Step S43) The process returns
to step S5 shown in the flowchart of FIG.
[0059]
If it is an example of the above-mentioned position information, control part 20 will judge that
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position information on display 1 selected is not corresponding to an outside position, when
corresponding to the 1st line.
[0060]
The control unit 20 may determine that only the speaker corresponding to the outermost
position has sound output, taking into consideration not only the display device 1 but also the
position of the speaker itself.
In the example of the position information described above, when the position information of the
selected display device 1 corresponds to the 0th column, the control unit 20 determines that only
the left speaker 12 corresponds to the outside position and has an audio output. When it
corresponds to the second column, it may be determined that only the right speaker 13
corresponds to the outside position, and the sound output may be determined to be present.
[0061]
When the control unit 20 executes the processing procedure shown in the flowchart of FIG. 3,
the sound is output only from the display device 1 positioned outside in the plurality of display
devices 1 configuring the multivision.
In the above-described example, the sound is output only from the display device 1 in the 0th
and 2nd columns.
[0062]
FIG. 4 is a flowchart showing another example of the procedure for determining the presence or
absence of audio output by the control unit 20 of the control device 2 constituting the display
system of the first embodiment. The same steps as those in the process shown in the flowchart of
FIG. 3 are assigned the same step numbers and the detailed description thereof is omitted.
[0063]
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The control unit 20 determines whether or not the position of the display device 1 corresponds
to the lower stage among the plurality of display devices 1 configuring the multivision based on
the acquired position information for one display device 1 being selected. (Step S44).
[0064]
When it is determined that the control unit 20 corresponds to the lower stage in step S44 (S44:
YES), the control unit 20 determines that the audio output of the speaker (left speaker 12 and
right speaker 13) of the display device 1 is present (S42). The process returns to step S5 shown
in the second flowchart.
[0065]
In the example of the position information described above, the control unit 20 determines that
the position information of the selected display device 1 corresponds to the lower level when the
position information corresponds to the second level.
[0066]
When the control unit 20 determines that it does not correspond to the lower stage in step S41
(S44: NO), it determines that the audio output of the speaker (the left speaker 12 and the right
speaker 13) of the display device 1 is null (S43), The process returns to step S5 shown in the
flowchart of FIG.
[0067]
When the control unit 20 executes the processing procedure shown in the flowchart of FIG. 4,
the sound is output only from the display device 1 positioned at the lower stage in the plurality
of display devices 1 configuring the multivision.
In the above-described example, the sound is output only from the display device 1 in the second
stage.
[0068]
FIG. 5 is a flowchart showing another example of the procedure for determining the presence or
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absence of audio output by the control unit 20 of the control device 2 constituting the display
system of the first embodiment.
The same steps as those in the process shown in the flowchart of FIG. 3 are assigned the same
step numbers and the detailed description thereof is omitted.
[0069]
The control unit 20 selects one of the speakers included in one of the selected display devices 1
(step S45).
Control unit 20 determines whether the selected speaker is right speaker 13 (step S46).
When the control unit 20 determines that it is the right speaker (S46: YES), the position of the
selected display device 1 is on the right of the center of the display device 1 group constituting
the multivision based on the acquired position information. It is determined whether or not it
corresponds to (step S47).
[0070]
If it is determined that the sound corresponds to the right at step S47 (S47: YES), the control unit
20 determines that the audio output of the selected speaker is present (S42), and advances the
process to step S49 described later. If the control unit 20 determines in step S47 that it does not
correspond to the right side (S47: NO), the control unit 20 determines that the audio output of
the selected speaker is null (S43), and advances the process to step S49 described later.
[0071]
When the control unit 20 determines that the right speaker is not the one at step S46 (S46: NO),
the position of the selected display device 1 is the group of display devices 1 forming the
multivision based on the acquired position information. It is determined whether it corresponds
to the left side of the center of the (step S48). If the control unit 20 determines that the left side
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is not supported at step S48 (S48: NO), the control unit 20 determines that the audio output of
the selected speaker is absent (S43), and advances the process to step S49 described later.
[0072]
If it is determined at step S48 that it corresponds to the left side (S48: YES), the control unit 20
determines that the audio output of the selected speaker is present (S42), and advances the
process to step S49 described later.
[0073]
Control unit 20 determines whether all the speakers have been selected (step S49).
If it is determined that all the speakers have not been selected (S49: NO), the control unit 20
returns the process to step S45 and performs the process for the next speaker. When it is
determined that all the speakers have been selected (S49: YES), the control unit 20 ends the
process of determining the presence or absence of voice output, and returns the process to step
S5 illustrated in the flowchart of FIG.
[0074]
By the control unit 20 executing the processing procedure shown in the flowchart of FIG. 5, in
the display device 1 positioned on the right side toward the display device group 1 configuring
the multivision, sound is output only from the right speaker 13, Further, in the display device 1
positioned on the left side toward the head, sound is output only from the left speaker 12.
[0075]
Note that, when performing the process of step S4 in the flowchart of FIG. 2, the control unit 20
may perform or combine any of the processing procedures shown in the flowcharts of FIGS. 3 to
5.
The details of the process of step S4 are not limited to the process procedure shown in the
flowcharts of FIGS. 3 to 5.
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[0076]
Next, the process of selecting the audio channel of each speaker in step S5 in the process
procedure shown in the flowchart of FIG. 2 will be described in detail by way of an example.
[0077]
FIG. 6 is a flowchart showing an example of an audio channel selection process procedure by the
control unit 20 of the control device 2 in the first embodiment.
[0078]
The control unit 20 selects one of the speakers included in the selected one display device 1
(step S51).
The control unit 20 determines whether the selected speaker is determined to have sound output
(step S52).
[0079]
When it is determined that the voice output is not determined (S52: NO), the control unit 20
advances the process to step S59 described later.
[0080]
When the control unit 20 determines that the voice output is determined to be present (S52:
YES), the position of the selected display device 1 is a display device 1 forming a multivision
based on the acquired position information. It is determined whether the center of the group
corresponds to the right (step S53).
[0081]
When the control unit 20 determines that it corresponds to the right side (S53: YES), the control
unit 20 selects the right channel as the audio channel output by the selected speaker (step S54),
and advances the process to step S59 described later.
[0082]
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If the control unit 20 determines in step S53 that it does not correspond to the right side (S53:
NO), it determines whether it corresponds to the left side (step S55).
[0083]
If the control unit 20 determines that it corresponds to the left side (S55: YES), the control unit
20 selects the left channel as the audio channel output by the selected speaker (step S56), and
advances the process to step S59 described later.
[0084]
When the control unit 20 determines that the left side is not supported at step S55 (S55: NO), the
position of the selected display device 1 should exist on the center line of the display device 1
group constituting the multivision. It is.
At this time, the control unit 20 determines whether the speaker selected in step S51 is the right
speaker 13 (step S57).
[0085]
If the control unit 20 determines that the right speaker 13 is selected at step S57 (S57: YES), the
control unit 20 selects the right channel as an audio channel output by the selected speaker (step
S58), and advances the process to step S59 described later .
At this time, since the control unit 20 selects the right channel for the selected right speaker 13,
the control unit 20 executes processing for selecting the left channel for the left speaker 12 of
the display device 1 at the symmetrical position. It is also good.
[0086]
If the control unit 20 determines that the speaker is the left speaker 13 in step S57 (S57: NO),
the control unit 20 selects the left channel as an audio channel output by the selected speaker
(S56), and advances the process to step S59 described later.
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[0087]
Control unit 20 determines whether all the speakers have been selected (step S59).
If it is determined that all the speakers have not been selected (S59: NO), the control unit 20
returns the process to step S51 and performs the process for the next speaker.
If it is determined that all the speakers have been selected (S59: YES), the control unit 20 ends
the audio channel selection process, and returns the process to step S6 shown in the flowchart of
FIG.
[0088]
By the control unit 20 executing the processing procedure shown in the flowchart of FIG. 6, in
the display device 1 positioned on the right side toward the display device group 1 configuring
the multivision, the speaker determined to have an output is output from the right channel The
sound of the left channel is output from the speaker whose output is determined to be output on
the display device 1 located on the left side of the display.
Further, in the display device 1 positioned on the center line, the right speaker 13 whose output
is determined to be output outputs sound of the right channel, and the left speaker 12 whose
output is determined is output the sound of the left channel. .
In this way, it is possible to prevent the mixing of multi-channel sound or the deterioration of
sound effects and effectively output multi-channel sound.
In addition, since there is a speaker without audio output, it is also possible to suppress the
power of the entire display system.
[0089]
Hereinafter, the juxtaposed pattern of the juxtaposed display device 1 group, the pattern of the
speaker determined to output the audio, and the pattern of the audio channel to be output will be
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described with reference to the image diagrams.
[0090]
FIGS. 7 to 19 are image diagrams of juxtaposed patterns of the juxtaposed display device 1
group, patterns of speakers from which sound is output, and patterns of selected sound channels.
In each figure, the presence or absence of the output in each speaker is described as "absent"
when there is nothing, and the selected audio channel is indicated by being circled.
[0091]
The example shown in FIG. 7 shows a pattern when two display devices 1 are arranged side by
side. When the control unit 20 determines the presence or absence of audio output according to
the processing procedure shown in the flowchart of FIG. 5, only the left speaker 12 of the display
device 1 located on the left and the right speaker 13 of the display device 1 located on the right
output The other speakers have no output. Furthermore, when the control unit 20 selects an
audio channel according to the processing procedure shown in the flowchart of FIG. 6, the audio
from the left channel 12 of the display device 1 on the left is audio from the left channel, and the
audio from the right speaker 13 of the display 1 on the right The sound of the right channel is
output. As shown in FIG. 7, the presence or absence of voice output is determined to be
symmetrical in the left-right direction, and the voice channel is also selected in the left-right
symmetry.
[0092]
The example shown in FIG. 8 shows another pattern when two display devices 1 are arranged
side by side. When the control unit 20 determines the presence or absence of audio output
according to the processing procedure shown in the flowchart of FIG. 3, all the speakers have
output. Furthermore, when the control unit 20 selects an audio channel according to the
processing procedure shown in the flowchart of FIG. 6, the audio of the left channel is output not
only from the left speaker 12 of the display device 1 on the left side but also from the right
speaker 13 The sound of the right channel is output not only from the right speaker 13 of the
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display device 1 but also from the left speaker 12.
[0093]
The example shown in FIG. 9 shows another pattern when two display devices 1 are arranged
side by side. As shown in FIG. 9, only the right speaker 13 of the left display device 1 and the left
speaker 12 of the right display device 1 may have an output. Also in this case, when the control
unit 20 selects the audio channel according to the processing procedure shown in the flowchart
of FIG. 6, the audio of the left channel is output from the right speaker 13 of the display device 1
on the left side. The sound of the right channel is output from the speaker 12.
[0094]
The example shown in FIG. 10 shows a pattern when three display devices 1 are arranged side by
side. When the control unit 20 determines the presence or absence of audio output according to
the processing procedure shown in the flowchart of FIG. 3 and the processing procedure shown
in the flowchart of FIG. 5, the left speaker 12 of the display device 1 on the left and the right of
the display device on the right Only the speaker 13 has an output. The speakers of the central
display device 1 have no output. Furthermore, when the control unit 20 selects an audio channel
according to the processing procedure shown in the flowchart of FIG. 6, the audio from the left
channel 12 of the display device 1 on the left is audio from the left channel, and the audio from
the right speaker 13 of the display 1 on the right The sound of the right channel is output. As a
result, the difference between the left and right audio output becomes clear, and stereo audio can
be output effectively.
[0095]
The example shown in FIG. 11 shows another pattern when three display devices 1 are arranged
side by side. As shown in FIG. 11, all the speakers of all the display devices 1 may have an
output, including the central display device 1. In the configuration of only one column in the
vertical direction, the speakers of all the display devices 1 can be determined to have output by
executing the processing procedure shown in the flowchart of FIG. 4. At this time, when the
control unit 20 selects an audio channel according to the processing procedure shown in the
flowchart of FIG. 6, in the display device 1 on the left side, audio of the left channel is output not
only from the left speaker 12 but also from the right speaker 13. The right channel sound is
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output not only from the right speaker 13 but also from the left speaker 12 in the right display
device 1. Then, in the display device 1 at the center, the left speaker 12 outputs the sound of the
left channel, and the right speaker 13 outputs the sound of the right channel.
[0096]
The example shown in FIG. 12 shows another pattern when three display devices 1 are arranged
side by side. As shown in FIG. 12, among the speakers included in the outermost display device 1,
only the speaker located inside may be output, and all speakers included in the central display
device 1 may be determined to be no output. . Also at this time, when the control unit 20 selects
an audio channel in accordance with the processing procedure shown in the flowchart of FIG. 6,
in the display device 1 on the left side, the audio of the left channel is output from the right
speaker 13 determined to have output. In the display device 1 on the right side, the sound of the
right channel is output from the left speaker 12 determined to have an output.
[0097]
The example shown in FIG. 13 shows another pattern when three display devices 1 are arranged
side by side. As shown in FIG. 13, the processing procedure shown in the flowchart of FIG. 5 is
executed for the speakers included in the outermost display device 1, whereby only the left
speaker 12 is displayed on the left display device 1 and the right is displayed on the right display
device 1. Only the speaker 13 has an output. As shown in FIG. 13, all speakers included in the
central display device 1 may be determined to have an output. Also at this time, the control unit
20 selects an audio channel according to the processing procedure shown in the flowchart of FIG.
6, whereby the display device 1 on the left and the display device 1 at the center select the left
speaker 12 to the left channel determined to have output. The right display unit 1 and the
display unit 1 at the center output the sound of the right channel from the right speaker 13
determined to have an output.
[0098]
The example shown in FIG. 14 shows a pattern in which four display devices 1 are juxtaposed
two rows horizontally and two columns vertically. When the control unit 20 determines the
presence or absence of audio output according to the processing procedure shown in the
flowchart of FIG. 5, only the left speaker 12 of the display device 1 located on the left and the
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right speaker 13 of the display device 1 located on the right output The other speakers have no
output. Furthermore, when the control unit 20 selects an audio channel according to the
processing procedure shown in the flowchart of FIG. 6, the audio from the left channel 12 of the
display device 1 on the left is audio from the left channel, and the audio from the right speaker
13 of the display 1 on the right The sound of the right channel is output. As a result, the
difference between the left and right audio output becomes clear, and stereo audio can be output
effectively.
[0099]
The example shown in FIG. 15 shows another pattern in which four display devices 1 are
juxtaposed two rows horizontally and two columns vertically. When the control unit 20
determines the presence or absence of audio output according to the processing procedure
shown in the flowchart of FIG. 4 and the processing procedure shown in the flowchart of FIG. 5,
the left speaker 12 of the lower left display device 1 and the lower right Only the right speaker
13 of the display device has an output. Furthermore, when the control unit 20 selects an audio
channel according to the processing procedure shown in the flowchart of FIG. 6, the audio from
the left channel of the display device 1 on the lower left is output from the left speaker 12 The
sound of the right channel is output. As a result, the difference between the left and right audio
output becomes clear, and stereo audio can be output effectively.
[0100]
The example shown in FIG. 16 shows another pattern in the case where four display devices 1
are juxtaposed two rows horizontally and two columns vertically. As shown in FIG. 16, the left
and right speakers may be switched one by one. The speakers determined to have an output are
symmetrical and the channels are also selected to be symmetrical. At this time, too, the control
unit 20 selects an audio channel according to the processing procedure shown in the flowchart
of FIG. 6, so that the speaker of the left display device 1 receives the audio of the left channel,
and the speaker of the right display device 1 receives the right. The audio of the channel is
output.
[0101]
The example shown in FIG. 17 shows a pattern in which six display devices 1 are arranged side
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by side in two rows and three columns in the vertical direction. When the control unit 20
determines the presence or absence of audio output according to the processing procedure
shown in the flowchart of FIG. 5, only the left speaker 12 of the display device 1 located on the
left and the right speaker 13 of the display device 1 located on the right output The other
speakers have no output. Furthermore, when the control unit 20 selects an audio channel
according to the processing procedure shown in the flowchart of FIG. 6, the audio from the left
channel 12 of the display device 1 on the left is audio from the left channel, and the audio from
the right speaker 13 of the display 1 on the right The sound of the right channel is output. As a
result, the difference between the left and right audio output becomes clear, and stereo audio can
be output effectively.
[0102]
In the example shown in FIG. 17, the control unit 20 performs processing to determine that there
is an output every other level, so that it is determined that no output is present in the speakers of
the second display device 1 in the second stage. You may do it. As a result, it is possible to reduce
the power consumption required for audio output as a whole system.
[0103]
The example shown in FIG. 18 shows a pattern in which six display devices 1 are juxtaposed
three rows horizontally and two rows vertically. Similar to the example of the three display
devices 1 shown in FIG. 13, the processing procedure shown in the flowchart of FIG. 5 is
executed for the speakers included in the outermost display device 1, so that the left speaker is
In the display device 1 on the right side, only the right speaker 13 has an output. And all the
speakers with which the central display 1 is provided are determined to have an output.
Furthermore, when the control unit 20 selects an audio channel according to the processing
procedure shown in the flowchart of FIG. 6, in the display device 1 on the left side and the
display device 1 in the center, the audio of the left channel is output from the left speaker 12
determined to be output. Is output, and in the display device 1 on the right side and the display
device 1 at the center, the sound of the right channel is output from the right speaker 13
determined to have the output.
[0104]
Note that, as shown in FIG. 18, when six display devices 1 are arranged side by side in three rows
and two rows vertically, as shown in the example of FIG. Of course, only the speakers 12 and the
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right speakers 13 of the display devices 1 on the upper and lower sides of the right side may be
determined to have sound output.
[0105]
The example shown in FIG. 19 shows another pattern in which six display devices 1 are
juxtaposed three rows horizontally and two rows vertically.
As shown in FIG. 19, it is decided that only the left speaker 12 of the display device 1 on the
upper left and lower side of the left side, the right speaker 13 of the display device 1 on the
upper right and lower right side of the right side It is also good. At this time, the control unit 20
selects an audio channel according to the processing procedure shown in the flow chart of FIG. 6,
so that the left speaker 12 of the display device 1 on the left side receives the audio of the left
channel, and the right speaker 13 of the display device 1 on the right side. The sound of the right
channel is output. Further, as shown in FIG. 19, when the position of the selected display device 1
corresponds to the position at the lower center of the group of display devices 1 constituting the
multivision as shown in FIG. It may be selected. Thereby, 2.1ch surround sound can be output
effectively.
[0106]
Second Exemplary Embodiment In the first exemplary embodiment, control unit 20 performs one
or a combination of processing procedures as shown in the example of the flowcharts of FIGS.
The speaker for outputting is determined, and the channel of the speaker for outputting sound is
selected. On the other hand, in the second embodiment, the user can select a speaker for
outputting sound.
[0107]
The configuration of the display system in the second embodiment is the same as that of the
display system in the first embodiment, and only the processing content by the control unit 20 of
the control device 2 described below is further performed. Therefore, in the following
description, the same components as in the first embodiment will be assigned the same reference
numerals and detailed explanations thereof will be omitted.
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[0108]
FIG. 20 is a flowchart showing an example of a processing procedure of audio output control by
the control unit 20 of the control device 2 configuring the display system of the second
embodiment.
[0109]
The control unit 20 acquires the array information of the connected display device 1 (step S21).
The details of the sequence information are the same as in the first embodiment.
[0110]
The control unit 20 outputs a setting screen for receiving a selection from the user to any one of
the connected display devices 1 (step S22). As a result, the setting screen is displayed on any or
all of the display devices 1 constituting the multivision, and the user can use the user interface
connected to the input unit 23 to make various selections.
[0111]
The control unit 20 receives the presence or absence of audio output in the entire display system
on the setting screen, and determines whether audio output present is selected (step S23). If the
control unit 20 determines that no voice output is selected in response to an input from the user
(S23: NO), the control unit 20 sets the outputs of all the speakers to no (step S24), and ends the
process.
[0112]
When it is determined that the voice output is selected (S23: YES), the control unit 20 receives
the speaker selection method on the setting screen (step S25).
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[0113]
The control unit 20 determines whether or not custom selection is selected (step S26), and when
it is determined that custom selection is selected (S26: YES), outputs a custom screen, and the
custom On the screen, the presence or absence of the audio output of each speaker and the
selection of the audio channel to be output are accepted (step S27), and the process is ended.
[0114]
When the control unit 20 determines that the custom selection is not selected (S26: NO), the
control unit 20 partially performs setting.
Therefore, the control unit 20 determines whether or not it is selected to use the speakers for
each outer row of the display device 1 group configuring the multivision on the setting screen
(step S28).
[0115]
If the control unit 20 determines that the use of the speakers for each outer row is not selected
(S28: NO), if the use of one display device group 1 configuring the multivision is selected The
determination is made, and by the input to the setting screen, the selection of the display device
1 with voice output is accepted (step S29).
At this time, in the setting screen, the selection of use is accepted at each stage so that the
selection can be made semi-automatically. For example, the screen is output to allow the user to
select which of the upper, middle, and lower display devices 1 is to be used, and any selection is
accepted.
[0116]
Next, the control unit 20 receives a selection as to whether to use one side or both sides of the
left speaker 12 and the right speaker 13 for the display device 1 selected to use the speaker
(with audio output) (Step S30). The control unit 20 may use one side of the left speaker 12 and
the right speaker 13 or use both sides also when it is determined in step S28 that the use of the
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loudspeakers in the outer one row is selected (S28: YES). The selection of whether or not to
accept is accepted (S30).
[0117]
Based on the selection received in step 30, the control unit 20 determines the presence or
absence of the audio output of each of the speakers included in the selected display device 1 to
use the speaker (with audio output) (step S31). In step S31, if it is selected to use both sides, it is
determined that all speakers of the display device 1 to be used have output, but if one side is
selected to be used, the position information is on the right It is determined that only the right
speaker of the corresponding display device 1 is output present, and it is determined that only
the left speaker of the display device 1 whose position information corresponds to the left has
output present.
[0118]
After the control unit 20 determines the sound output presence / absence of each speaker, the
channel of each speaker (the left speaker 12 and the right speaker 13) included in the display
device 1 selected to be used based on the position specified for each display device 1 Is selected
(step S32), and the process ends. The details of step S32 correspond to the processing procedure
shown in the flowchart of FIG.
[0119]
21 to 23 are explanatory diagrams showing examples of the custom screen output by the control
unit 20 in the second embodiment.
[0120]
FIG. 21 illustrates the arrangement specified by the control unit 20 based on the acquired
position information of the display device 1 group configuring the multivision.
In the example of FIG. 21, an arrangement in the case of using nine display devices 1 in three
rows and three columns is shown. Each display device 1 is identified by a number from 1 to 9. In
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the example of FIG. 21, the identification information of the upper left display device 1 (for
example, position information (0, 0)) is 1 , and the identification information of the lower
right display device 1 (for example, position information (2, 2)) is
9 ".
[0121]
When the custom screen shown in FIG. 21 is displayed on the display device 1, the user can
select the display device 1 using the speaker by using the mouse or the direction key of the
keyboard.
[0122]
FIG. 22 illustrates an example of a screen displayed when the user selects the display device 1 of
the identification information 4 .
When the display device 1 of the identification information "4" is selected, the control unit 20
identifies the identification information "6" located at a symmetrical position with respect to the
center of the display device 1 group constituting the multivision of 3 columns and 3 columns. It
is decided to use the speaker also in the display device 1 of the above. At this time, the control
unit 20 specifies (1, 2) of a symmetrical position with respect to the center (1, 1) based on the
position information (1, 0) of the display device of the identification information "4" The display
device 1 of the identification information "6" having the information is specified as the display
device 1 located at the symmetrical position.
[0123]
Further, on the custom screen of FIG. 22, the identification numbers of the display devices 1 that
output the audio channels of the left (L) channel and the right (R) channel are displayed. In the
custom screen, it is possible to select whether to use one speaker or both speakers for each
display device 1 in the box displayed at the lower right. In the example of the custom screen in
FIG. 22, it is selected by default to use a speaker on one side, and the display device 1 of the
currently selected identification information 4 and the identification information selected
symmetrically with respect to it In the display device 1 of "6", it is selected to use a speaker on
one side. Therefore, the left channel is selected in the display device 1 of the identification
information "4" corresponding to the left position, and the right channel is selected in the display
device 1 of the identification information "6" corresponding to the right position.
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[0124]
FIG. 23 illustrates an example of a screen displayed when the user selects the display device 1 of
the identification information 1
4
7 . When the display devices 1 of the identification
information 1
4
7 are selected, the control unit 20 displays the display devices 1 of
the identification information 3
6
9 corresponding to symmetrical positions with
each other. Is determined as a display device 1 (with audio output) that uses a speaker.
[0125]
In the identification number of the display device 1 that outputs the audio channel of the left (L)
channel and the right (R) channel displayed on the custom screen of FIG. 23, 4 and 6 are
+ (plus) . The symbol is attached. The "+" symbol is displayed when it is selected to use the
speakers on both sides. Also in this case, the speakers to be used are determined to be left-right
symmetric between the display devices 1 located at the left-right symmetric position.
[0126]
In this manner, the user can freely select and easily set the display system with various
configurations. Even if the user is free to select the display device 1 using the speaker, the user
can select whether to use the outer display device or to select upper / middle / lower, etc.
Symmetry is maintained. In addition, the selection of the channel is automatically selected
appropriately by the control device 2, and it is possible to sharpen the balance of the left and
right sounds.
[0127]
It should be understood that the disclosed embodiments are illustrative and non-restrictive in
every respect. The scope of the present invention is indicated not by the above description but by
the claims, and is intended to include all modifications within the meaning and scope equivalent
to the claims.
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[0128]
Reference Signs List 1 display device 11 panel 12 left speaker 13 right speaker 2 control device
20 control unit 21 storage unit 2P control program
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