Screen unit

Abstract

To provide a data processing method capable of integrating and handling various devices that handle various protocols. [Solution] A data processing method for generating multi-track audio data that stores audio data for multiple channels, in which a data string of a digital audio signal is stored in a first channel, and a digital signal that is related to the digital audio signal and different from the audio data is stored in a second channel as a data string of the digital audio signal.

Description

[Technical Field]

[0001] One embodiment of the present invention comprises: Screen unit Regarding. [Background technology]

[0002] Conventionally, screens have mainly been of the type in which the screen is hung from a long horizontal bar, or the type in which the screen is attached to a metal frame. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2008 / 111143 Summary of the Invention [Problem to be solved by the invention]

[0004] These screens required a structure to hang them from the ceiling.

[0005] Furthermore, conventional screens have the problem that the projection area cannot be easily changed, making them incompatible with venues with various equipment. Event organizers prepare large screens for large venues, but if the venue entrance is narrow, it is not easy to bring in a large screen.

[0006] So, The present embodiment aims to provide a screen that can be installed in venues with various facilities and whose projection area can be easily changed. [Means for solving the problem]

[0007] According to one embodiment of the present invention The screen unit has a panel that functions as a flat screen and a frame that holds the panel from the back, and the panel is configured to be disassembled into a plurality of individual panels. [Effects of the Invention]

[0008] According to one embodiment of the present invention, It can be installed in venues with various equipment and the projection area can be easily changed. It is possible. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a block diagram showing a configuration of a data processing system 1. FIG. [Figure 2] 1 is a block diagram showing the main configuration of a data processing device 10. FIG. [Figure 3] 10 is a flowchart showing the operation of a CPU 104. [Figure 4] 10 is a diagram showing an example of a format when a digital signal different from audio data is stored as a data string of a digital audio signal. [Figure 5] 10 is a diagram showing an example of a format when a digital signal different from audio data is stored as a data string of a digital audio signal. [Figure 6] FIG. 1 is a block diagram showing the configuration of a data processing system 1A in a playback environment of a live performance. [Figure 7] 10 is a flowchart showing the operation of a processing unit 154 of the data processing device 10 during playback. [Figure 8] FIG. 2 is a perspective view of the screen unit 5. [Figure 9] FIG. 2 is a perspective view of the frame 80 with the panel 70 removed. [Figure 10] 1A and 1B are a front view and a side view of an individual panel 70A. [Figure 11] 10A and 10B are a front view and a side view of an individual panel 70A according to another example. [Figure 12] 10A and 10B are a front view and a side view of an individual panel 70A according to another example. [Figure 13] 10A and 10B are a front view and a side view of an individual panel 70A according to another example. [Figure 14] 10A and 10B are a front view and a side view of an individual panel 70A according to another example. [Figure 15] 1A and 1B are a front view and a side view of an individual panel 70A. DETAILED DESCRIPTION OF THE INVENTION

[0010] 1 is a block diagram showing the configuration of a data processing system 1. The data processing system 1 includes a data processing device 10, a mixer 11, a lighting controller 12, a video device 13, a GPI control device 14, a MIDI device 15, and a laser controller 16.

[0011] The devices are connected by a communication standard such as a USB cable, HDMI (registered trademark), Ethernet (registered trademark), or MIDI, etc. The devices are installed at a venue where an event such as a live performance is to be held.

[0012] The mixer 11 is connected to multiple audio devices such as microphones, musical instruments, and amplifiers. The mixer 11 receives digital or analog audio signals from the multiple audio devices. When the mixer 11 receives an analog audio signal, it converts the analog audio signal into a 24-bit digital audio signal with a sampling frequency of, for example, 48 kHz. The mixer 11 performs signal processing such as mixing, gain adjustment, equalization, and compression on the multiple digital audio signals. The mixer 11 transmits the processed digital audio signals to the data processing device 10.

[0013] The lighting controller 12 controls various types of lighting used to produce events such as live performances. The lighting controller 12 transmits control signals in a predetermined format (e.g., DMX512) for controlling the lighting to the data processing device 10. The laser controller 16 also transmits control signals in a predetermined format (e.g., DMX512) for controlling various lasers used to produce events such as live performances to the data processing device 10.

[0014] The video equipment 13 includes a camera and captures images of performers at an event. The video equipment 13 transmits video data captured by the camera as data in a predetermined format (e.g., MPEG4) to the data processing device 10. The GPI control device 14 transmits GPI (General Purpose Interface) control signals used to control devices such as sensors, processors, and motors to the data processing device 10. The MIDI device 15 includes, for example, an electronic musical instrument and transmits MIDI (Musical Instrument Digital Interface) signals to the data processing device 10.

[0015] 2 is a block diagram showing the main configuration of the data processing device 10. The data processing device 10 is composed of a general personal computer or the like, and includes a display 101, a user interface (I / F) 102, a flash memory 103, a CPU 104, a RAM 105, and a communication interface (I / F) 106.

[0016] The display 101 is composed of, for example, an LCD (Liquid Crystal Display) or an OLED (Organic Light-Emitting Diode), and displays various information. The user I / F 102 is composed of a switch, a keyboard, a mouse, a trackball, a touch panel, or the like, and accepts user operations. When the user I / F 102 is a touch panel, the user I / F 102, together with the display 101, constitutes a GUI (Graphical User Interface, hereinafter abbreviated).

[0017] The communication I / F 106 is connected to the mixer 11, lighting controller 12, video equipment 13, GPI-controlled equipment 14, MIDI equipment 15, and laser controller 16 via communication lines such as a USB cable, HDMI (registered trademark), Ethernet (registered trademark), or MIDI. The communication I / F 106 receives digital audio signals from the mixer 11. The communication I / F 106 also receives various digital signals from the lighting controller 12, video equipment 13, GPI-controlled equipment 14, MIDI equipment 15, and laser controller 16. The mixer 11 may transmit digital audio signals to the data processing device 10 via Ethernet (registered trademark) using a protocol such as Dante (registered trademark).

[0018] The CPU 104 corresponds to the processing unit of the present invention. The CPU 104 loads a program stored in a flash memory 103, which is a storage medium, into the RAM 105 to implement a predetermined function. For example, the CPU 104 displays an image for accepting user operations on the display 101 and accepts selection operations and the like for the image via the user I / F 102, thereby implementing a GUI. The CPU 104 receives a digital signal from another device via the communication I / F 106. The CPU 104 generates multi-track audio data based on the received digital signal. The CPU 104 also stores the generated multi-track audio data in the flash memory 103. Alternatively, the CPU 104 distributes the generated multi-track audio data.

[0019] The program read by CPU 104 does not need to be stored in flash memory 103 within the device itself. For example, the program may be stored in a storage medium of an external device such as a server. In this case, CPU 104 simply reads the program from the server into RAM 105 and executes it each time.

[0020] The multi-track audio data conforms to, for example, the Dante (registered trademark) protocol. For example, Dante (registered trademark) can transmit 64-channel audio signals over 100base-TX. Each channel stores, for example, a 24-bit digital audio signal with a sampling frequency of 48 kHz (uncompressed digital audio data in WAV format, etc.). However, in the present invention, the number of channels, sampling frequency, and bit depth of the multi-track audio data are not limited to this example. Furthermore, the multi-track audio data does not necessarily have to conform to the Dante (registered trademark) protocol.

[0021] Fig. 3 is a functional block diagram showing the minimum configuration of the present invention. The processing unit 154 shown in Fig. 3 is realized by software executed by the CPU 104. Fig. 4 is a flowchart showing the operation of the processing unit 154. The processing unit 154 receives digital signals from each device, such as the mixer 11, lighting controller 12, video device 13, GPI-controlled device 14, MIDI device 15, and laser controller 16 (S11). The processing unit 154 receives digital audio signals from the mixer 11 and control signals from other devices (e.g., the lighting controller 12).

[0022] Then, the processing unit 154 generates multi-track audio data based on the received digital signals from each device (S12). Specifically, the processing unit 154 stores the data string of the digital audio signals received from the mixer 11 in a first channel of the multi-track audio data. When the processing unit 154 receives audio data conforming to the Dante (registered trademark) protocol from the mixer 11, it stores the data string of the digital audio signals of each channel of the received audio data as is in the same channel of the multi-track audio data.

[0023] The processing unit 154 also stores, in a second channel of the multi-track audio data, a digital signal that is related to the digital audio signal received from the mixer 11 and is different from the audio data, as a data string of the digital audio signal. The digital signal that is different from the audio data corresponds to a digital signal received from the lighting controller 12, the video device 13, the GPI control device 14, the MIDI device 15, and the laser controller 16. The processing unit 154 receives a digital signal that is different from the audio data from at least one of these devices and stores the received data as a data string of the digital audio signal in the second channel. FIG. 3 shows, as an example, an example in which the processing unit 154 receives a DMX512 digital signal including a lighting control signal from the lighting controller 12.

[0024] FIG. 5 shows an example of a format for storing digital signals other than audio data as a data string of digital audio signals. As described above, the digital audio signals of each channel of the multi-track audio data are, for example, 24-bit digital audio signals with a sampling frequency of 48 kHz. FIG. 5 shows a data string of a certain sample of a certain channel in the multi-track audio data. The multi-track audio data has a first channel in which the received digital audio signal is stored as a data string of digital audio signals as is, and a second channel consisting of a data string as shown in FIG. 5. There can be any number of first channels and any number of second channels. As an example, the processing unit 154 stores the digital audio signals of the audio data received from the mixer 11 in channels 1 to 32 as the first channels, and stores digital signals other than the audio data received from sources other than the mixer 11 in channels 33 to 64 as the second channels.

[0025] As shown in Figure 5, each sample of the second channel consists of 8-bit header information and data body. The data body contains an 8-bit or 16-bit data string. In the example of Figure 3, the 8-bit or 16-bit data string corresponds to a DMX512 digital signal.

[0026] The 8-bit header information includes a start bit, a data size flag, and type data. The start bit is a 1-bit data that indicates whether the data of that sample is the first data or not. A start bit of 1 indicates that it is the first data. In other words, the samples from one sample with a start bit of 1 to the next sample with a start bit of 1 correspond to the data of one DMX512 control signal.

[0027] The data size flag is 1-bit data that indicates the data size. For example, if the data size flag is 1, it indicates that one sample contains 8 bits of data, and if the data size flag is 0, it indicates that one sample contains 16 bits of data. For example, if one DMX512 data contains 24 bits of data, the start bit of the first sample will be 1 and the data size flag will be 0. The start bit of the second sample will be 0 and the data size flag will be 1. If one DMX512 data is 8 bits of data, the start bit of each sample will be 0.

[0028] Next, type is identification information that indicates the type of data, and is 6-bit data. In this example, type is 6 bits, so it indicates 64 data types. Of course, the number of bits is not limited to 6 bits. The number of type bits can be set to the number of bits according to the number of types required.

[0029] For example, if the type is "01," it indicates DMX512 data. If the type is "02," it indicates MIDI data. If the type is "03," it indicates GPI data. If the type is "00," it indicates idle data (empty data). However, it is preferable not to use "3F," in which all bit data is 1. If the processing unit 154 does not use "3F," the device playing multi-track audio data can determine that a malfunction has occurred when all bit data is 1. If all bit data is 1, the processing unit 154 does not play multi-track audio data or output a control signal. This prevents the processing unit 154 from damaging lighting or other equipment when an abnormal signal is output. Note that when the processing unit 154 sets the type to "00" and all bit data is 0, i.e., idle data (empty data), it is preferable to set the start bit to 1 to prevent all bits from becoming 0. This allows the device processing multi-track audio data to determine that a malfunction has occurred when all bit data is 0. The processing unit 154 does not play back the multi-track audio data and does not output a control signal when all the bit data is 0. In this case, too, the processing unit 154 prevents damage to equipment such as lighting when an abnormal signal is output.

[0030] Furthermore, the processing unit 154 may not play back the multi-track audio data and may not output a control signal if the data does not match the data format shown in Fig. 5. For example, if the data size flag is 1, the lower 8 bits will all be 0's (or all 1's). Therefore, even if the data size flag is 1, if the lower 8 bits contain a mixture of 0's and 1's, the processing unit 154 will not play back the multi-track audio data and will not output a control signal. In this case, too, the processing unit 154 will not damage equipment such as lighting when an abnormal signal is output.

[0031] The processing unit 154 may include only data of the same type in the same channel, or may include data of different types in the same channel. That is, the processing unit 154 may include only one piece of identification information in the same channel among the second channels, or may include multiple pieces of identification information in one channel.

[0032] Furthermore, the processing unit 154 may store data of the same type across multiple predetermined channels. For example, the processing unit 154 stores data in three channels, 33, 34, and 35, in order. In this case, channels 33, 34, and 35 all contain the same type of bit data. If the data size flags of channels 33, 34, and 35 are all set to 0, the processing unit 154 can store three times as much data (48 bits) in one sample. Alternatively, if the processing unit 154 stores the same type of data in, for example, four channels, it can store four times as much data (64 bits) in one sample. In this way, by storing data across multiple channels, the processing unit 154 can also store data of a type that generates a large amount of data per unit time (e.g., video data) in one sample.

[0033] Furthermore, when storing data across multiple channels, processing unit 154 may add header information to only one representative channel (e.g., channel 33) and not load header information on the other channels. In this case, processing unit 154 may store 16-bit data in the representative channel and store up to 24-bit data in the other channels. That is, processing unit 154 may store up to 64-bit data across three channels. In this case, the data size flag for the representative channel may be, for example, 3 bits (bit data indicating 8 types of data sizes) instead of 1 bit.

[0034] The data processing device 10 may also receive signal processing parameters indicating the content of signal processing and data related to the basic settings of the mixer 11 from audio equipment such as the mixer 11, and store them as a data string of digital audio signals on the second channel.

[0035] As mentioned above, in the present invention, the sampling frequency of multi-track audio data is not limited to 48 kHz, and the number of bits is not limited to 24. For example, if the sampling frequency of multi-track audio data is 96 kHz, the processing unit 154 may generate 48 kHz sampling data by invalidating one sample every two samples. Furthermore, if the number of bits is 32, the processing unit 154 may use the most significant 24 bits instead of the least significant 8 bits.

[0036] For example, the bit rate of DMX512 is 250 kbps. On the other hand, the bit rate of 48 kHz, 24-bit digital audio data is 2304 kbps. The bit rate of MIDI is 31.25 kbps. In other words, the bit rate of digital audio data is 9.216 times the bit rate of DMX512 and 73.728 times the bit rate of MIDI. Therefore, when storing a digital signal with a bit rate lower than the bit rate of these digital audio data, the data processing device 10 invalidates at least one sample among multiple samples and stores data in the remaining samples. For example, when storing DMX512 data, the data processing device 10 invalidates eight of nine samples and stores the DMX512 data in the remaining sample. In this case, the digital signal of the second channel may be out of sync by about one sample on the playback side. However, the time lag at a sampling frequency of 48 kHz is only 0.0208 msec, and even if there is a lag of several samples, the time lag will be less than 1 msec. Lighting and other devices are controlled at intervals of a few milliseconds, so even if a time difference of less than 1 millisecond occurs, there is no risk of a difference in the control timing.

[0037] Alternatively, as described above, the data processing device 10 may include different types of data in the same channel. The data processing device 10 may store digital signals of multiple types of data in one channel. Furthermore, when the same type of data has multiple channels, the data processing device 10 may store digital signals of multiple channels of data in one channel. For example, DMX512 includes control signals for multiple channels to control multiple lighting devices. Therefore, the data processing device 10 may store DMX512 digital signals for multiple channels in one channel. When DMX512 includes control signals for multiple channels, the second channel may include channel information indicating the channel numbers of the multiple channels. If one DMX512 data is 8-bit data and the data size of one sample is 16 bits, the 8 bits of data become empty data. The data processing device 10 may store channel information in the 8 bits of empty data. Alternatively, although the identification information indicating the type of data is 6-bit data in the example of FIG. 5, the header information may contain 4-bit identification information and 2 bits of channel information.

[0038] As mentioned above, lighting and other devices are controlled at intervals of a few milliseconds, so even if a time lag of less than 1 millisecond occurs, there is no risk of a deviation in the control timing. However, DMX512 transmits control signals serially on up to 512 channels. Therefore, if the digital signal on the second channel is out of sync by one sample, a control signal on a different channel may be sent to a device other than the target device. However, if channel information is included in the second channel as described above, the data processing device 10 that plays back multi-track audio data can send the appropriate control signal to the appropriate device based on the channel information.

[0039] In this manner, multi-track data recording the live performance is generated. The processing unit 154 outputs the multi-track audio data generated in this manner (S13). The multi-track audio data may be stored in the flash memory 103 of the device itself, or may be distributed to another device via the communication I / F 106.

[0040] As described above, the data processing system 1 is installed in a venue where an event such as a live performance is being held. The data processing device 10 stores digital audio signals received from the sound equipment during the live performance on a first channel and receives control signals for other equipment, such as lighting, and stores them on a second channel. The digital audio signals and control signals are generated in accordance with the progress of the event, such as the live performance. The control signals are stored at the same frequency as the sampling frequency of the digital audio signals (e.g., 48 kHz). Therefore, the data processing device 10 can generate multi-track audio data by storing digital audio signals with a predetermined sampling frequency (e.g., 48 kHz) on a first channel and control signals with the same frequency (48 kHz) as the first channel on a second channel, thereby synchronizing and recording multiple digital signals generated by multiple devices without using a time code. This eliminates the need for dedicated recording devices for each protocol used by the multiple devices and for recording each data individually. The data processing system 1 also eliminates the need for time code generators, cables, interfaces, and the like for synchronizing multiple devices with time codes. Furthermore, the data processing system 1 does not require any settings such as matching the frame rate of the time code for each device.

[0041] The data processing device 10 may record the video data as separate data rather than storing it in the multi-track audio data. In this case, the data processing system 1 may include a time code generating device (not shown). The data processing device 10 may further receive a time code from the time code generating device. In this case, the data processing device 10 stores the received time code as a data string of a digital audio signal in a second channel. In this case, the data processing system 1 can synchronize the digital signal related to the video data with all other digital signals simply by matching the frame rate of the digital signal related to the video data with the frame rate of at least one of the other digital signals (for example, the digital audio signal output by the mixer 11).

[0042] The second channel shown in this embodiment stores a digital signal, different from audio data, as a data string of digital audio signals, and therefore conforms to a predetermined multi-track audio data protocol (e.g., the Dante (registered trademark) protocol). Therefore, the second channel can be played back as audio data, and can also be edited, such as by copying, cutting, pasting, or adjusting timing, using an audio data editing application program such as a DAW (Digital Audio Workstation). For example, a user can use a DAW to cut and paste the first channel and second audio data contained in a certain time period to a different time period, thereby moving not only the audio data but also DMX512 data and the like to a different time period without disrupting synchronization.

[0043] The second channel may store position information for lighting and other devices. The position information is expressed, for example, in a three-axis Cartesian coordinate system with a location within the venue as the origin. The data processing device 10 may extract the position information and display the positions of lighting and other devices within the venue on a display device based on the position information. For example, the data processing device 10 acquires 3D CAD data representing the shape of the venue and displays a stereoscopic image of the venue based on the 3D CAD data. The data processing device 10 then displays an image of each device within the stereoscopic image, thereby displaying the position of each device within the venue. This allows the operator of the playback venue to refer to the positions of lighting and other devices displayed on the display device and set up lighting and other devices in the same or similar positions as the venue. Next, FIG. 6 is a block diagram showing the configuration of a data processing system 1A in a live performance playback environment. The data processing system 1A is installed in a venue where an event such as a live performance is to be remotely reproduced.

[0044] The data processing system 1A has the same hardware configuration as the data processing system 1 shown in Fig. 1. Therefore, all components are given the same reference numerals and descriptions thereof are omitted. However, while the video equipment 13 in the data processing system 1 includes a camera, the data processing system 1A includes a video playback device that plays back video data and a video display device such as a projector instead of a camera.

[0045] 7 is a flowchart showing the operation of the processing unit 154 of the data processing device 10 during playback. First, the processing unit 154 accepts multi-track audio data (S21). The multi-track audio data is received from the data processing device 10 at a venue where a live performance is being held or from a server. Alternatively, the data processing device 10 reads out multi-track audio data relating to a past live performance stored in the flash memory 103. Alternatively, the data processing device 10 reads out multi-track audio data relating to a past live performance stored in another device such as a server.

[0046] The processing unit 154 decodes the received multi-track audio data to reproduce digital audio signals and other digital signals (S22), and outputs them (S23). For example, the processing unit 154 extracts the digital audio signals of the first channels 1 to 32 and outputs them to the mixer 11. The mixer 11 outputs the received digital audio signals to an audio device such as a speaker, and reproduces the singing sound or the musical performance sound.

[0047] Furthermore, the processing unit 154 reads 8-bit header information for each sample of the second channels 33 to 64, and extracts the 8-bit or 16-bit data body. The second channels may include data related to signal processing parameters and basic settings of the mixer 11. The processing unit may extract this signal processing parameters and data related to basic settings and output it to the mixer 11.

[0048] The mixer 11 receives signal processing parameters and setting data from the data processing device 10, and performs various signal processing on the received audio signal based on the signal processing parameters and setting data, thereby reproducing singing and performance sounds in the same condition as a live performance.

[0049] The processing unit 154 outputs the extracted DMX512 digital signal to the lighting controller 12 and the laser controller 16. The lighting controller 12 and the laser controller 16 control the lighting and the laser, respectively, based on the received DMX512 digital signal, thereby recreating the lighting, laser, and other effects of a live performance.

[0050] Similarly, the processing unit 154 outputs the extracted MIDI digital signal and GPI digital signal to the GPI control device 14 and the MIDI device 15. The GPI control device 14 and the MIDI device 15 control the MIDI device and the GPI device, respectively, based on the received digital signal.

[0051] Furthermore, if video data is included in the second channel, the processing unit 154 extracts the video data and outputs it to the video equipment 13. For example, as described above, if video data is stored in three channels, 33, 34, and 35, the processing unit 154 extracts the data included in the three channels, 33, 34, and 35, in order, and outputs it to the video equipment 13. The video equipment 13 includes a video playback device and a projector. The video equipment 13 plays back the video data using the video playback device. A screen is installed in the playback venue. The video equipment 13 displays live video on the screen based on the video data received from the data processing device 10.

[0052] When the video data is recorded separately from the multi-track audio data and synchronized with the time code, the data processing device 10 outputs the video data and the time code to the video device 13. The video device 13 plays back the video data based on the time code and displays live video on a screen. The devices other than the video device 13 are controlled based on the time code included in the multi-track audio data.

[0053] The playback venue does not need to have the same hardware configuration as the venue where the event, such as a live performance, took place. The data processing device 10 simply extracts the necessary data from the multi-track audio data in accordance with the devices installed in the playback venue and outputs it to each device.

[0054] In this way, the data processing device 10 extracts and outputs the digital audio signal of the first channel of each sample at the playback venue, and extracts and outputs digital signals such as the control signal of the second channel of each sample, thereby enabling multiple devices to play multiple digital signals in synchronization without using a time code.

[0055] Note that digital signals such as control signals stored in the second channel may consist of multiple samples. However, even if a time lag occurs between multiple samples in multiple devices, the time lag at a sampling frequency of 48 kHz is less than 1 msec. Because lighting and other devices are controlled at intervals of a few msec, there is no risk of a time lag of less than 1 msec causing a discrepancy in control timing. Therefore, in addition to synchronous playback of sound and video, data processing system 1A also synchronizes lighting and other devices to create a performance, allowing viewers at the playback venue to perceive themselves as participating in a live performance or other event, even though they are in a different venue from the live performance venue.

[0056] The data processing system shown in this embodiment can be applied to a system that requires a combination of video, sound, and performances, such as a theme park. Alternatively, a commercial facility outputs background music and turns off the lights when it closes. The data processing system shown in this embodiment can also be applied to a system that links the lighting and sound in such a commercial facility.

[0057] Next, we will explain an example of a screen used in a playback venue. Conventionally, screens have mainly been of the type that are hung from a long horizontal bar or the type that is attached to a metal frame. These screens required a structure to hang them from the ceiling. Furthermore, conventional screens have the problem that the projection area cannot be easily changed, making them incompatible with venues with various facilities. Event organizers prepare large screens for large venues, but if the venue entrance is narrow, it is not easy to bring in a large screen.

[0058] Therefore, an object of this embodiment is to provide a screen that can be installed in venues with various facilities and whose projection area can be easily changed.

[0059] The screen unit of this embodiment has a panel that functions as a flat screen and a frame that holds the panel from the back, and the panel is configured to be disassembled into a plurality of individual panels.

[0060] Fig. 8 is a perspective view of the screen unit 5. The screen unit 5 has a plate-shaped panel 70 and a frame 80. In the example of Fig. 8, the screen unit 5 has 12 individual panels 70A.

[0061] 9 is a perspective view of the frame 80 when the panel 70 is removed. The frame 80 includes a base 81, a rear block 82, a connecting member 83, a front block 84, and a connecting frame 85.

[0062] The front block 84 and the rear block 82 are, for example, rectangular parallelepiped shaped. The front block 84 is arranged to correspond to the four corners of the plate-shaped individual panel 70A. The frame 80 has 20 front blocks 84, which are arranged at the four corners of the 12 panels.

[0063] The rear block 82 has, for example, a rectangular parallelepiped shape. The frame 80 has 20 rear blocks 82, the same number as the front blocks 84. The connecting members 83 connect the rear blocks 82 and the front blocks 84 in the front-rear direction.

[0064] The base 81 connects the 14 rear blocks 82 arranged on the outermost periphery of the frame 80 in a line up in the vertical or horizontal direction.

[0065] The connecting frame 85 connects the rear block 82 and the front block 84 side by side in the vertical or horizontal direction. For example, the front block 84 on the upper right in the drawing is connected via the connecting frame 85 to the rear block 82 one block below in the vertical direction when the frame 80 is viewed from the front. Also, for example, the front block 84 on the upper right in the drawing is connected via the connecting frame 85 to the rear block 82 one block to the left in the horizontal direction when the frame 80 is viewed from the front.

[0066] As a result, the frame 80 stably connects the 20 rear blocks 82 and front blocks 84. The five rear blocks 82 and front blocks 84 arranged at the bottom in the vertical direction when the frame 80 is viewed from the front are placed on the floor or the like. Therefore, the frame 80 can stand on its own with one of the bottom surfaces of each of the 20 front blocks 84 facing forward.

[0067] The base 81 bends in the middle, and the two connecting frames 85 are rotatably connected at the center of the rear block 82 and the front block 84, which are aligned vertically or horizontally. This allows the frame 80 to be folded up into a small size.

[0068] One of the bottom surfaces of each of the 20 front blocks 84 is attached to the four corners of the plate-shaped individual panel 70A. Figure 10 shows a front view and a side view of the individual panel 70A. The view on the left side of Figure 10 is a front view of the individual panel 70A, and the view on the right side is a left side view of the individual panel 70A. The other individual panels have the same configuration as the individual panel 70A shown in Figure 10.

[0069] The individual panel 70A has a plate member 77, a screen member 75, and a magnet 78. The plate member 77 is a flat member made of metal, resin, or wood. The screen member 75 is attached to the front surface of the plate member 77. The screen member 75 is a white reflective material that projects the image from the projector.

[0070] Magnets 78 are placed on the four corners of the rear surface of the plate material 77. If the front block 84 is made of magnetic metal, the individual panel 70A is attracted to the front block 84 by the magnets 78. The front block 84 serves as a guide for attaching the screen member 75 and also functions as a holding member for holding the screen member 75. This allows the front block 84 to prevent the screen member 75 from falling or shifting. The event organizer assembles one panel 70 by attracting 12 individual panels 70A to the frame 80 in the state shown in FIG. 9. In other words, the panel 70 is configured to be disassembled into multiple individual panels 70A.

[0071] In this way, the screen unit 5 can be disassembled from a single large panel 70 into individual panels 70A. The frame 80 can also be folded up into a small size. This allows event organizers to easily bring the screen unit 5 through narrow entrances to venues. Furthermore, because the frame 80 is self-supporting, no structure is required to suspend or secure the screen. The size and angle of view (aspect ratio) of the screen unit 5 can be freely changed depending on the venue and the content of the event. By preparing any number of individual panels 70A, event organizers can easily set up a screen with the optimal size and angle of view (aspect ratio) to suit the venue and the content of the event.

[0072] Furthermore, when the screen unit 5 is viewed from the front, structures such as the frame 80 are not visible. Therefore, event participants can see only the image from the projector, which enhances their sense of immersion in the event.

[0073] The method of attaching the individual panel 70A to the frame 80 is not limited to adhesion by the magnet 78. For example, the individual panel 70A may be attached to the front block 84 with a hook-and-loop fastener. Alternatively, the individual panel 70A may be attached by screwing it from the rear surface of the front block 84.

[0074] Fig. 11 is a front view and a side view of another example of an individual panel 70A. The view on the left side of Fig. 11 is a front view of two individual panels 70A arranged vertically, and the view on the right side is a left side view of two individual panels 70A arranged vertically.

[0075] A first screen member 75A and a second screen member 75B are attached to the front surface of the plate material 77. The second screen member 75B is attached to the first screen member with, for example, an adhesive. The first screen member 75A is attached to the plate material 77 so as to cover the entire front surface of the plate material 77. The second screen member 75B has an area smaller than the area of ​​the first screen member 75A when viewed from the front. Therefore, when the individual panel 70A is viewed from the front, the first screen member 75A is exposed from the outer periphery of the second screen member 75B.

[0076] The third screen member 75C is attached to the first screen member 75A so as to cover the exposed portion of the first screen member 75A when the multiple individual panels 70A are arranged. The height (thickness) of the third screen member 75C is the same as the height (thickness) of the second screen member 75B. Therefore, the front surfaces of the second screen member 75B and the third screen member 75C are at the same height. Therefore, no shadows are generated even when light from a projector is irradiated obliquely.

[0077] 13, the third screen member 75C may be attached to the first screen member 75A with double-sided tape 750. In this case, the height (thickness) of the third screen member 75C is made thinner than the height (thickness) of the second screen member 75B by the thickness of the double-sided tape or other member.

[0078] Alternatively, as shown in FIG. 14 , the third screen member 75C may be attached to a thin, plate-shaped magnetic material 760 with adhesive. In this case, the magnetic material 760 is attached to a magnet 78 disposed on the rear surface of the plate 77. Therefore, the third screen member 75C is attached to the first screen member 75A via the magnetic material 760. This allows the third screen member 75C to be easily attached and detached by magnetic force without using adhesive or double-sided tape. It is preferable to use a hardened ribbon steel, which has high smoothness and flexibility, for the magnetic material 760. This increases the strength of the third screen member 75C. Even if gaps occur when multiple individual panels 70A are arranged, the gaps are covered by the third screen member 75C. Therefore, when the screen unit 5 is viewed from the front, the gaps between the multiple individual panels 70A are not visible. Therefore, event participants are completely unaware of the gaps between the multiple individual panels 70A and can see only the image projected by the projector, further enhancing their sense of immersion in the event.

[0079] The method of filling the gaps between the multiple individual panels 70A is not limited to the example in Fig. 11. For example, as shown in Fig. 12, the area of ​​the screen member 75 may be increased so that the larger screen member 75 covers part of the front of the adjacent individual panel 70A. However, the configuration in which the gaps between the multiple individual panels 70A are filled as shown in Fig. 11 does not create shadows even when the light from the projector is irradiated obliquely, and therefore can further enhance the sense of immersion in the event.

[0080] 15 , a light-blocking material 700 may be attached to the back and side surfaces of the screen member 75. This prevents external light from passing through the back and side surfaces of the screen member 75. Therefore, external light will not adversely affect the image projected on the screen member 75.

[0081] The description of the present embodiment should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above-described embodiments. Furthermore, the scope of the present invention includes a range equivalent to the claims. For example, in the above-described embodiment, the processing unit of the present invention is configured by a program read by the CPU 104, but it is also possible to realize the processing unit of the present invention by, for example, an FPGA (Field-Programmable Gate Array). [Explanation of symbols]

[0082] 1,1A...Data processing system 10...Data processing device 11...Mixer 12...Lighting controller 13...Video equipment 14...GPI control device 15…MIDI equipment 16...Laser controller 101...Indicator 102...User I / F 103...Flash memory 104...CPU 105...RAM 106...Communication I / F 154...Processing section

Claims

1. A panel that functions as a flat screen, a frame that holds the panel from the rear; and The panel is configured to be disassembled into a plurality of individual panels, the frame holds four corners of each of the plurality of individual panels; The frame is A number of blocks, a plurality of connection frames that connect the plurality of blocks in a vertical or horizontal direction; and the plurality of blocks each hold four corners of the rear surfaces of the plurality of individual panels, Screen unit.

2. The plurality of blocks includes a plurality of front blocks and a plurality of rear blocks, The frame is a plurality of connecting members that connect the plurality of front blocks and the plurality of rear blocks in the front-rear direction; a base that connects the plurality of rear blocks in a vertical or horizontal direction; and The plurality of connecting frames connect the plurality of front blocks and the plurality of rear blocks in a vertical or horizontal direction. The screen unit according to claim 1 .

3. Each of the plurality of connecting frames includes two connecting frames rotatably connected to each other at the centers of the plurality of front blocks and the plurality of rear blocks. The screen unit according to claim 2 .

4. Among the plurality of front blocks and the plurality of rear blocks, the plurality of front blocks and the plurality of rear blocks arranged at the bottom in the vertical direction when viewing the frame from the front are installed on the floor.

4. The screen unit according to claim 2 or 3.

5. each of the plurality of individual panels has a magnet; Each of the plurality of front blocks includes a magnetic metal and is attracted to the magnet. The screen unit according to any one of claims 2 to 4.

6. Each of the plurality of individual panels is attached to each of the plurality of front blocks by hook-and-loop fasteners or screws. The screen unit according to any one of claims 2 to 4.

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