TW202326652A - Information processing system and information processing method - Google Patents

Abstract

The present technology relates to an information processing system and an information processing method wherein scan marks are not generated on a display image. A display unit is divided into a plurality of segment, and a line to be scanned among a plurality of lines is switched, thereby switching a pixel to be driven, and driving a pixel included in the segments. At this time, either the direction of the scan or the order of the lines being scanned differs.

Description

Information processing system, and information processing method

The present technology relates to an information processing system and an information processing method, and particularly relates to an information processing system and an information processing method that prevent scanning streaks from occurring in a displayed image.

Patent Document 1 discloses a display device in which one pixel emits light a plurality of times in one frame period by an active PWM driving method in a display panel. [Prior Art Literature] [Patent Document]

[Patent Document 1] International Publication No. 2018/164105

[Problem to be Solved by the Invention]

For example, in a passive LED display, light emission of pixels is repeated by scanning repeatedly during one frame period of the displayed image, and when a moving image is displayed, the scanning is synchronized with the moving image Instead, streaks (scanning streaks) occur.

This technology was developed in view of this situation, and the purpose is to prevent scanning streaks from occurring in the displayed image. [Means to solve the problem]

The information processing system of the present technology is an information processing system which has: a display unit; and a plurality of drivers provided corresponding to each of the plurality of divisions which divide the aforementioned display unit, the plurality of drivers In a plurality of image lines, by switching the image line for scanning to switch the pixels for driving, the pixels contained in the aforementioned division are driven; the aforementioned plural drivers include: the direction of the aforementioned scanning, and the aforementioned Any of the sequences of the preceding pixel lines scanned is different for the driver.

The information processing method of the present technology is an information processing method of an information processing system having a display unit and a plurality of drivers, wherein the aforementioned plurality of drivers correspond to each of the plurality of divisions that divide the aforementioned display unit It is set, among the plurality of image lines, by switching the image line for scanning to switch the pixels for driving to drive the pixels contained in the aforementioned division; the aforementioned plurality of drivers is to make the aforementioned scanning direction, Either one of the order of the preceding image lines for performing the preceding scanning is different to drive the pixels contained in the preceding division.

In this technology, the display unit is divided into a plurality of sections, and among the plurality of image lines, by switching the image line to be scanned, the pixels to be driven are switched and the pixels contained in the aforementioned sections are driven. . At this time, either the direction of the preceding scan or the order of the preceding image lines on which the preceding scan is performed is different.

Hereinafter, embodiments of the present technology will be described with reference to the drawings.

＜<Example of display system to which this technology is applied＞＞ The present disclosure relates to technologies applicable to direct-view LED (Light Emitting Diode) displays. In this disclosure, a direct-view LED display to which this technology is applied will be described as an embodiment of a display display to which this technology is applied.

The display system 11 in FIG. 1 displays video content on a large-scale display configured by arranging a plurality of display units in a tile shape.

More specifically, the display system 11 is composed of: a PC (personal computer) 30 , a video server 31 , a video wall controller 32 , and a video wall 33 .

The PC (Personal Computer) 30 is a general-purpose computer, accepts user's operation input, and supplies commands corresponding to the operation content to the video wall controller 32 . The PC 30 is mainly used for controlling the video wall controller 32 . The processing in the PC 30 may also be performed in the video wall controller 32 , and the video wall controller 32 may include an input unit for the user to perform operation input.

The video server 31 is made up of, for example, a server computer, etc., and supplies data of video signals such as video content (image data representing a video to be displayed on a monitor) to the video wall controller 32 . The device that supplies image data to the video wall controller 32 may be a video camera or any type of playback device other than a server computer.

The video wall controller 32 operates in response to commands provided by the PC 30, and distributes image data from the video server 31 to the display units 51-1 to 51-n (n series display units) that constitute the video wall 33. number of units) to be displayed.

In addition, if it is not necessary to distinguish the display units 51 - 1 to 51 - n one by one, they are simply referred to as the display unit 51 . The display unit 51 is a device for controlling the display of each of a plurality of compartments called Cabinet 202 described later that constitute the screen of the video wall 33 , and is also called a display cabinet or a cabinet.

The TV wall 33 is shown in the upper right part of FIG. The displayed images are combined in a tile-like manner, so that one image is displayed on the entire video wall 33 .

The video wall controller 32 performs predetermined signal processing on the image data provided by the video server 31, distributes and supplies according to the configuration of the display units 51-1 to 51-n, and controls the display unit 51-1 Each display to 51-n is controlled so that the entire video wall 33 displays one image.

In addition, the video wall controller 32 and the video wall 33 may also be integrated, or may be an integrated display device (information processing system). In addition, in this specification, the so-called system means a collection of plural constituent elements (device, module (part), etc.), and it does not matter whether all the constituent elements are located in the same housing or not. Therefore, a plurality of devices housed in individual housings and connected via a network, and a device in which a plurality of modules are housed in one housing are both systems.

＜＜Detailed structure of TV wall controller and display unit＞＞ Next, a detailed configuration example of the video wall controller 32 and the display unit 51 will be described with reference to FIG. 2 .

The TV wall controller 32 is equipped with: LAN (Local Area Network) terminal 71, HDMI (High Definition Multimedia Interface) (registered trademark) terminal 72A, DP (Display Port) terminal 72B, DVI (Digital Visual Interface) terminal 72C, SDI ( Serial Digital Interface) terminal 72D, network IF (Interface) 75, MPU (Micro Processor Unit) 76, signal input IF77, signal processing unit 78, DRAM (Dynamic Random Access Memory) 79, signal distribution unit 80, and output IF81- 1 to 81-n.

The LAN (Local Area Network) terminal 71 is a connection terminal such as a LAN cable, and is operated by the user to supply control commands corresponding to the operation content to the video wall controller 32 to achieve communication with the personal computer (PC) 30. The inputted control commands and the like are supplied to the MPU 76 via the network IF 75 through the communication via the LAN.

In addition, the LAN terminal 71 may be configured to be physically connected with a wired LAN cable, or may be configured to be connected through wireless communication, that is, a so-called wireless LAN.

The MPU 76 accepts input of a control command supplied from the PC 30 through the LAN terminal 71 and the network IF 75 , and supplies a control signal corresponding to the accepted control command to the signal processing unit 78 . The MPU 76 not only controls the signal processing unit 78 but also controls the signal input IF 77 and the signal distribution unit 80 .

The HDMI terminal 72A, the DP terminal 72B, the DVI terminal 72C, and the SDI terminal 72D are all input terminals of image data, and are connected with, for example, a server computer that functions as the video server 31, through the signal input IF77, to the signal processing Section 78 supplies data formed from video signals.

In addition, in Fig. 2, although the example that the video server 31 is connected to the HDMI terminal 72A is shown in the figure, the HDMI terminal 72A, the DP terminal 72B, the DVI terminal 72C, and the SDI terminal 72D all have only differences in specifications, and basically have The same function, so choose any one of them to connect according to the need.

The signal processing unit 78 adjusts the enlargement/reduction ratio, color temperature, contrast, brightness, white balance, etc. of the image supplied through the signal input IF77 as image data based on the control signal supplied from the MPU 76, and supplies it to Signal distribution unit 80 . At this time, the signal processing unit 78 uses the connected DRAM 79 to expand the image data as needed, executes signal processing based on the control signal, and supplies the signal processing result to the signal distribution unit 80 .

The signal distribution unit 80 distributes the signal-processed image data supplied by the signal processing unit 78, and distributes the display units 51-1 to 51-n individually through the output IFs 81-1 to 81-n. transmission. In addition, among the output IFs 81 - 1 to 81 - n, there will be unused according to the size of the video wall 33 formed by the display unit 51 . The MPU 76 specifies the used output IFs among the output IFs 81-1 to 81-n based on the size of the video wall 33, and calculates the range of image data to be distributed for each used output IF, And the calculation result is supplied to the signal distribution unit 80 . The signal distribution unit 80 distributes the image data to the used output IF among the output IFs 81 - 1 to 81 - n based on the calculation result from the MPU 76 .

The display unit 51 includes a driver control unit 91 and an LED block 92 .

The driver control unit 91 supplies LED drivers 121-1 to 121-M (the number of M-series LED drivers) to control LED arrays 122-1 to 122-M constituting the LED block 92. The luminous image data.

More specifically, the driver control unit 91 includes: a signal input IF111, a signal processing unit 112, a DRAM 113, and output IFs 114-1 to 114-M.

The signal input IF 111 accepts the input of video data supplied from the video wall controller 32 and supplies it to the signal processing unit 112 .

The signal processing part 112 is based on the image data supplied by the signal input IF111, and implements the correction of the color or brightness of each display unit 51, and generates and sets the light emission of each LED constituting the LED arrays 122-1 to 122-M. The data required for the intensity is distributed and supplied to the LED drivers 121-1 to 121-M of the LED block 92 through the output IFs 114-1 to 114-M.

More specifically, the image data also includes information such as the length of the blanking period stipulated in the general specification. Therefore, the signal processing unit 112 considers the information such as the length of the blanking period contained in the video data signal, and generates an image line number (Scan line number) for setting the LED, and repeatedly emits light in one frame period. The number of times (the number of repetitions of scanning), and the data required for the luminous intensity of each LED that constitutes the LED array 122-1 to 122-M, through the output IF114-1 to 114-M, the LED driver 121 of the LED block 92 -1 to 121-M are distributed and supplied.

The LED block 92 includes LED drivers 121-1 to 121-M and LED arrays 122-1 to 122-M. In addition, LED blocks are also called LED modules.

The LED drivers 121-1 to 121-M are based on the data used to set the luminous intensity of the LED 141 contained in the image data supplied by the driver control unit 91, and will form the corresponding LED arrays 122-1 to 122 Light emission of the LEDs 141 arranged in an array of -M is controlled by PWM (Pulse Width Modulation).

＜<Construction example of LED array>> Next, a configuration example of the LED array 122 will be described with reference to FIG. 3 . FIG. 3 shows an example of the configuration of the LED array 122 on the passive matrix driving type LED driving connection line. Therefore, regarding the LEDs 141 of the LED array 122, the light emission thereof is controlled by a passive matrix driving method.

In the LED array 122 of FIG. 3 , the Common Cathode type or Common Anode type LEDs 141 are arranged in an array, and each LED 141 is connected to the Sig line (brightness control wiring) wired in the vertical direction, and the Sig line (brightness control wiring) wired in the left and right direction. Scan line (line selection wiring).

In the LED array 122 in FIG. 3 , once the Scan line 1 is turned ON by setting a predetermined fixed potential, a current is supplied from the Sig line to the LEDs, and a light emission operation takes place. In addition, the fixed potential is generally GND=0V potential, but it is not limited thereto.

＜＜Screen Composition of TV Wall＞＞ FIG. 4 is an explanatory diagram of the screen configuration of the video wall 33 . In (A) of FIG. 4 , Wall 201 represents the screen (display unit, display panel) constituted by the video wall 33 of FIG. And the whole of the screen displayed by the supplied image. Wall 201 is also a range in which LED 141 (light-emitting elements) constituting the screen of video wall 33 are arranged. The screen of the Wall 201 is not limited to a specific shape, but has, for example, a shape that is flat, curved, or along a zigzag surface, and has a roughly square (rectangular) shape in outline. Wall 201 is constituted by arranging a plurality of separable Cabinets 202 in the up, down, left, and right directions. In addition, the screen of Wall201 can be in any shape.

(B) of FIG. 4 is an enlarged view showing any one of a plurality of Cabinets 202 constituting the Wall 201 of (A) of FIG. 4 . Cabinet 202 represents a division controlled and displayed by each of the display units 51-1 to 51-n in FIG. 1 on the screen of Wall 201. The screen (section) of each Cabinet 202 is not limited to a specific shape, but has a rectangular outline. The Cabinets 202 are physically separable from each other, and the Wall 201 is formed by detachably attaching, for example, a support (not shown) in a predetermined arrangement. The Cabinet 202 is constituted by arranging a plurality of Modules 203 in the up, down, left, and right directions.

(C) of FIG. 4 is an enlarged view illustrating a part of any one of the plurality of Modules 203 constituting the Cabinet 202 of (B) of FIG. 4 . Module 203 shows, on the screen (section) of Cabinet 202 , a section in which a plurality of LED arrays 122 (and LED drivers 121 ) integrated on one substrate are arranged. The screen (section) of each Module 203 is not limited to a specific shape, but has a quadrangular outline. Each Module 203 is physically separated from each other by separating the substrate on which the LED array 122 is constructed. For example, during manufacture, a plurality of LED arrays 122 are arranged on each substrate corresponding to each Module 203 to be arranged in the up, down, left, and right directions to be constructed, and each substrate is fixed in a predetermined arrangement to a support not shown in the figure. , thereby constituting Cabinet202. In addition, one LED array 122 is comprised from the some LED141 (LED element) controlled by one LED driver 121 . If the area on the screen where one LED array 122 is arranged is called the driver coverage area 204 (or driver area), the Module 203 is formed by arranging a plurality of driver coverage areas 204 in the up, down, left, and right directions.

(D) of FIG. 4 is an enlarged view showing any one of a plurality of driver coverage areas 204 (LED array 122 ) constituting the Module 203 of (C) of FIG. 4 . The driver coverage area 204 (LED array 122) has: LEDs 141 (141R, 141G, 141B) with a plurality of pixels arranged along the image line in the predetermined image line direction (for example, left and right direction), along the direction perpendicular to the image line In the scanning direction (for example, the up-down direction), LEDs 141 for a plurality of image lines are arranged. The LED 141 of each pixel is composed of three LEDs 141R, 141G, and 141B that emit light of wavelengths of RGB colors. LEDs 141R, 141G, and 141B are drawn by distinguishing them by differences in density in the drawing, and LEDs 141R, 141G, and 141B of RGB for one pixel are arranged along the image line direction. However, the arrangement of the RGB LEDs 141R, 141G, and 141B for one pixel is actually not limited to the case along the image line direction, and may be arranged in close proximity. These RGB LEDs 141R, 141G, and 141B are considered to be arranged on the same image line. When LED141R, 141G, and 141B are not distinguished, it is simply referred to as LED141. If one luminance control line (Sig line in FIG. 3 ) to which the control signal for controlling the light emission of the LEDs 141 arranged in the scanning direction is transmitted is called a channel (CH), then the image line direction (left and right direction) is There is a channel number (CH number) of 3×pixel number. The driver coverage 204 (LED array 122 ) is configured by arranging a plurality of LEDs 141 controlled by one LED driver 121 in the image line direction and the scanning direction. In addition, the image line direction refers to the arrangement direction of LEDs 141 connected to the same row selection line among the plurality of row selection lines (Scan line) in FIG. 3 ; the scan direction refers to the direction perpendicular to the image line direction. When the row selection wiring is arranged vertically and the LEDs 141 connected to the same row selection wiring are arranged vertically, the image line direction becomes the vertical direction, and the scanning direction becomes the left-right direction. The image line direction and the scanning direction can be any one of the up-down direction and the left-right direction, and the image line direction can be changed according to the wiring on the substrate or the installation direction of the substrate on which the LED array 122 is constructed to the screen. and scan direction.

＜＜Cabinet configuration example＞＞ FIG. 5 is an explanatory diagram related to the configuration of display control of Cabinet 202 in FIG. 4 . In FIG. 5 , the image data (image source) representing the image to be displayed on the Wall 201 is supplied to the video wall controller 32 also shown in FIG. 1 . The video wall controller 32 generates image data representing an image to be displayed on each Cabinet 202 based on the supplied image data. The video wall controller 32 supplies the generated image data of each Cabinet 202 to the display unit 51 corresponding to each Cabinet 202 . The image to be displayed on each Cabinet 202 is an image corresponding to the division of each Cabinet 202 obtained when the entire image to be displayed on the Wall 201 is divided into divisions of each Cabinet 202 .

If we focus on one Cabinet202, then as shown in the lower part of FIG. the number of Module203). On the signal processing substrate 251 is constructed a circuit including the signal processing unit 112 of FIG. 2 that executes the processing of the driver control unit 91 . Modules 203-1 to 203-L respectively have a plurality of LED drivers 121-1 to 121-D and LED arrays 122-1 to 122-D (D is the number of LED arrays 122 constituting Module 203). Modules 203-1 to 203-L are respectively equivalent to Module 203 in FIG. 4 . LED arrays 122 - 1 to 122 -D are constructed on the substrate corresponding to Module 203 in FIG. 4 , and are a plurality of LED arrays 122 constituting the screen of Module 203 . The LED drivers 121 - 1 to 121 -D are constructed on the substrate corresponding to the Module 203 in FIG. 4 , and are the LED drivers 121 for controlling each of the LED arrays 122 - 1 to 122 -D. In FIG. 2, the LED drivers 121-1 to 121-D, and the LED arrays 122-1 to 122-D are equivalent to the LED drivers 121-1 to 121-M in the LED block 92, and the LED array 122- Among 1 to 122-M, there are D LED drivers 121 mounted on the same substrate, and D LED arrays 122 controlled by these LED drivers 121 .

The signal processing board 251 (signal processing unit 112) generates image data representing an image to be displayed on each of the Modules 203-1 to 203-L based on the image data supplied from the video wall controller 32 . The signal processing unit 112 supplies the generated image data of each of the Modules 203-1 to 203-L to each of the Modules 203-1 to 203-L.

The image to be displayed on each of the Modules 203-1 to 203-L is obtained by dividing the image to be displayed on the Cabinet 202 into the divisions of each of the Modules 203-1 to 203-L. Maps corresponding to the divisions of Modules 203-1 to 203-L. Then the image to be displayed on each of Module203-1 to 203-L is to be displayed between the LED arrays 122-1 to 122-D (each driver coverage area 204) of each Module203-1 to 203-L It is formed by the image displayed in each division. The image data supplied from the signal processing board 251 to each of the Modules 203-1 to 203-L includes images representing each of the LED arrays 122-1 to 122-D constituting each of the Modules 203-1 to 203-L. Image data. The image data representing the image of each of the LED arrays 122-1 to 122-D is supplied to the corresponding LED drivers 121-1 to 121-D of the LED arrays 122-1 to 122-D, respectively. The image data supplied to the LED drivers 121 - 1 to 121 -D is, for example, data indicating the light emission intensity of each LED 141 .

Each LED driver 121 - 1 to 121 -D of each Module 203 - 1 to 203 -L controls the light emission of each LED array 122 - 1 to 122 -D based on the image data supplied from the signal processing board 251 .

＜＜Scanning control of LED array＞＞ FIG. 6 is an illustration of the structure of one LED array 122 (driver coverage area 204). In addition, the LED array 122 of FIG. 6 is an enlarged view of the LED array 122 shown in (D) of FIG. 5 , and the parts corresponding to the LED array 122 shown in (D) of FIG. A detailed description thereof is omitted.

In FIG. 6, the LED array 122 (driver coverage area 204) is such that RGB LEDs 141R, 141G, and 141B constituting one pixel are arranged in a plurality of LEDs in the image line direction (left-right direction) and scanning direction (up-down direction). pixels. If it is assumed that the LEDs 141R, 141G, and 141B of the same pixel are arranged on the same image line, then the LED array 122 is, with respect to the image line direction, the number of channels (CH number) that is 3 times the number of pixels in the image line direction. In the scanning direction, there are LED141 with the same number of image lines (1 to N image lines) as the number of pixels in the scanning direction.

The LED driver 121 which controls the light emission of the LED array 122 performs scanning of the LED array 122, and controls ON/OFF of the light emission of each LED141 of the LED array 122. During scanning of the LED array 122 , the LED driver 121 switches the image lines to be controlled at predetermined time intervals (every image line control time) sequentially from the first image line to the Nth image line, for example. The LED driver 121 controls the light emitting time of the LED 141 of each channel of the image line to be controlled based on the image data supplied from the signal processing unit 112 . The control of the so-called light emission time is specifically, between the image line control time, the ratio of the time to turn on the light emission and the time to turn off the light emission is controlled. Each LED driver 121 repeats such scanning of the LED array 122 a plurality of times during the time interval when the image data supplied by the LED driver 121 is updated, that is, one frame period.

＜＜Normal scan control＞＞ FIG. 7 is an explanatory diagram of normal scanning control of the LED array 122 by the LED driver 121 . In the upper graph of FIG. 7 , the horizontal axis represents time. When the frame rate of the image data supplied to the video wall controller 32 is set to 60FPS, the image data supplied to the LED driver 121 from the signal processing unit 112 (refer to FIG. To be updated, the timing of updating is 60 Hz, and its period (period of one frame) is 1/60 second. The period of 60 Hz shown on the horizontal axis represents the time length (1/60 second) of one frame period. The LED driver 121, in the normal scanning state, repeats multiple times during the 1-frame period (1/60 second) from when the image data from the signal processing unit 112 is updated to the next update. Scanning of the LED array 122 . The LED driver 121 controls the light emission time of each LED 141 of the image line to be controlled (the light emission time of each LED 141 in the image line control time) at the time of each scan. Accordingly, the LED array 122 is controlled so that the light emission intensity of each LED 141 during one frame period becomes the light emission intensity corresponding to the image data supplied to the LED driver 121 .

In the figure at the lower part of FIG. 7 , the divisions of each driver coverage area 204 (each LED array 122 ) in a part of the screen of Wall 201 are shown in the figure, and the LED array 122 caused by the LED driver 121 in each driver coverage area 204 The scanning direction (scanning direction) is indicated by an arrow. Accordingly, the substrate on which the LED array 122 (and the LED driver 121 ) is constructed such that the image line direction is the vertical direction and the scanning direction is the left-right direction is arranged. The leftward arrow marked in the division of each driver coverage area 204 (each LED array 122 ) indicates that the LED driver 121 that controls the LED array 122 of each driver coverage area 204 performs normal scanning control. The direction of the scan below is to the left. The so-called normal scanning control refers to the control of sequentially switching the image lines of the control object from the first image line to the Nth image line (N is the number of full image lines) of the LED array 122. The so-called scanning direction refers to Refers to the direction in which the image line of the control object is switched. In this way, when the scanning directions of all the driver coverage areas 204 (each LED array 122 ) are consistent and the scanning is performed synchronously, the problem as illustrated in FIG. 8 will occur.

Here, in this specification, the so-called scanning direction refers to the direction in which a plurality of image lines of the LED array 122 are arranged, and means a direction perpendicular to the image line direction. In one scan direction, two directions opposite to each other may be included. For example, the case where the scanning direction is the up-and-down direction includes both upward and downward directions. The case where the scanning direction is the left-right direction includes the case of facing left and right. The so-called scanning direction refers to the direction in which the image lines of the control object are switched relative to the plurality of image lines of the LED array 122 . For example, in the LED array 122 whose image line direction is the up-down direction, when the image lines to be controlled are sequentially switched from the upper image line to the lower end image line, the scanning direction is downward. In the case of sequentially switching the image lines of the control object from the image line at the lower end to the image line at the upper end, the scanning direction is upward. Therefore, in the LED array 122 with the same image line direction, there are two scanning directions opposite to each other. Even the LED arrays 122 with the same scanning direction may have different scanning directions. In the LED arrays 122 whose scanning directions are different, their scanning directions are different. In the scan control of the LED array 122, except for the case where the image lines to be controlled are sequentially switched from the image line at one end to the image line at the other end, there is no scanning direction. In addition, in this specification, when the "direction of scanning" means the scanning direction and the direction in the scanning direction, for example, the case where the direction of scanning is different means that the scanning direction is different, Any one of the cases where the scanning direction is the same but the directions in the scanning direction are different.

＜＜General scan control issues＞＞ FIG. 8 is an explanatory diagram of the subject of normal scan control. A in FIG. 8 is an image example of video content supplied to the video wall controller 32 . An image of a person moving in the same direction as the scanning direction of each driver coverage area 204 (each LED array 122 ) is included in the image of A in FIG. 8 . In contrast, B in FIG. 8 is an example of an image when the image of the video content in A in FIG. 8 supplied to the video wall controller 32 is displayed on the screen of the video wall 33 , that is, Wall 201 . In the image of B in FIG. 8 , stripes (scanning stripes) occur in the image of a person moving in the same direction as the scanning direction of each driver coverage area 204 (each LED array 122 ). In this way, with respect to the scanning direction of each driver coverage area 204 (each LED array 122), if an image of an object moving in the same direction is included in the image, the image is displayed on the Wall 201 , there will be scanning streaks on these images. Similarly, if a viewer watching the image displayed on Wall 201 turns his head or moves his eyes in the same direction as the scanning direction, he may see scanning stripes. The reason is that, since the scanning direction of each driver coverage area 204 (each LED array 122) in the screen of Wall 201 is the same, if the image contains an image moving in the same direction as the scanning direction, or When the viewer's line of sight moves in the same direction as the scanning direction, the scanning of the entire driver coverage area 204 (each LED array 122) and the moving image or the movement of the viewer's line of sight sometimes become just synchronized. caused by the situation.

In this technology, it is designed to span a wide range of continuous areas in the picture of Wall 201, so that the scanning of the range 204 (LED array 122) covered by each driver will not be synchronized with the movement of the moving image or line of sight. However, the direction of scanning of the range 204 (LED array 122 ) covered by each driver does not coincide with the peripheral portion.

＜＜Setting of scanning of each driver coverage area 204 (LED array 122)＞＞ FIG. 9 is a block diagram showing an example of the configuration required for setting the scanning of each driver coverage area 204 (LED array 122 ) in the Wall 201 . In FIG. 9, the LED drivers 121-1 to 121-D and the LED arrays 122-1 to 122-D of the Module203 represent that any one of the multiple Module203 constituting the Cabinet202 corresponds to the substrate on the substrate. A plurality of LED drivers 121 and a plurality of LED arrays 122 are constructed. Cabinet 202 (display unit 51 ) indicates that one Cabinet 202 of Module 203 in the figure is included among a plurality of Cabinet 202 (display unit 51 ) constituting Wall 201 . The scanning direction of each of the LED arrays 122-1 to 122-D or the sequence of the image lines of the control object during scanning, etc., are set by setting the LED arrays 122-1 to 122-D respectively. The setting of the control data of the LED drivers 121-1 to 121-D to be controlled can be performed.

When setting the control data for the LED drivers 121-1 to 121-D, when the video wall controller 32 has a CPU (Central Processing Unit) 301, the CPU 301 generates data for the LED drivers 121-1 to 121-D. Control data for each. The CPU 301 can also be the MPU 76 in FIG. 2 , and the CPU 301 can also obtain control data from the PC 30 in FIG. 1 , for example. The CPU 301 transmits the generated control data to the IF board 321 of the display unit 51 (Cabinet 202 ) connected via the control bus. The IF board 321 transmits the control data for each of the LED drivers 121-1 to 121-D transmitted from the CPU 301 of the video wall controller 32 to the LED drivers connected via the control bus. 121-1 to 121-D. Thereby, the control data about scanning in each LED driver 121-1 to 121-D is set, and each LED driver 121-1 to 121-D controls each LED array 122- 1 to 122-D scans. In addition, when the scanning direction of the LED array 122 cannot be changed by setting the control data of the LED driver 121, the direction of the wiring pattern on the substrate on which the LED array 122 is constructed (connected to the same line The arrangement direction of the LEDs 141 of the row selection wiring), or the arrangement direction of the cabinet 202 on which the LED array 122 is constructed, can set or change the scanning direction of the LED array 122 during manufacture.

＜<The first form of scanning control of LED array>> FIG. 10 is an explanatory diagram of a first form of scanning control of the LED array 122 . In FIG. 10 , the division of each driver coverage area 204 (each LED array 122 ) in the screen of Wall 201, and the direction of scanning performed by the LED driver 121 relative to each driver coverage area 204 (each LED array 122 ), is instantiated in the scope of a part of Wall201.

Accordingly, the drive coverage areas 204 whose scanning directions are upward, downward, leftward, and rightward are mixed, so that at least the scanning directions of the drive coverage areas 204 that are adjacent to each other up, down, left and right, and obliquely are as follows: Scanning is performed in different ways, that is, the scanning directions of the surrounding driver coverage areas 204 are different from the scanning directions of the respective driver coverage areas 204 . In this way, when a moving image is displayed on the screen of Wall 201, in a continuous area spanning a wide range, it is possible to reduce the synchronization of scanning and moving images of the coverage area 204 (LED array 122) of each driver, and to suppress Occurrence of scanning streaks. Although the occurrence of scanning streaks due to the synchronization of scanning and the movement of the viewer's line of sight can also be suppressed, the following description of the suppression of the occurrence of scanning streaks due to the movement of the viewer's line of sight is omitted.

In addition, in the general display unit 51 , the scanning directions of the coverage areas 204 of the drivers are unified into the left-right direction or the up-down direction, and the scanning direction cannot be changed by setting the control data of the LED driver 121 . In this case, for such a general display unit 51, as described above, by adjusting the direction of the wiring pattern on the substrate on which the LED array 122 is constructed (the arrangement direction of the LEDs 141 connected to the same row selection wiring), Alternatively, the substrate on which the LED array 122 is constructed can partially change the installation direction of the Cabinet 202 , so that the scanning direction of the coverage area 204 of each driver becomes mixed with the up-down direction and the left-right direction.

The division of each driver coverage area 204 (each LED array 122) shown in Figure 10 is to represent the division of Module203, and the direction of scanning of all driver coverage areas 204 (LED arrays 122) contained in the same Module203 can also be direction indicated by the arrow.

＜<Second form of scan control of LED array>> FIG. 11 is an explanatory diagram of a second mode of scanning control of the LED array 122 . In FIG. 11 , the division of each driver coverage area 204 (each LED array 122 ) in the screen of Wall 201 and the trend of scanning performed by the LED driver 121 relative to each driver coverage area 204 (each LED array 122 ), is instantiated in the scope of a part of Wall201.

Accordingly, the scanning direction of the entire driver coverage area 204 is unified into a left-right direction, and the scanning direction is mixed to the left and to the right. At least make the direction of scanning of the drive coverage areas 204 adjacent to each other different from top to bottom, and left and right, that is, the scanning directions of the drive coverage areas 204 arranged in the left and right direction are different from each other toward the left and right way, and the direction of the scanning of the driver coverage area 204 arranged in the vertical direction is different from each other to the left and right, and the scanning is performed. In this way, when a moving image is displayed on the screen of Wall 201, in a continuous area spanning a wide range, it is possible to reduce the synchronization of scanning and moving images of the coverage area 204 (LED array 122) of each driver, and to suppress Occurrence of scanning streaks.

In addition, in FIG. 11 , the left arrow can also be changed to an upward arrow, and the right arrow can be changed to a downward arrow, so that the scanning direction of each drive coverage area 204 becomes upward and downward. And the mixed situation exists.

The division of each driver coverage area 204 (each LED array 122) shown in Figure 11 is to represent the division of Module203, and the direction of scanning of all driver coverage areas 204 (LED arrays 122) contained in the same Module203 can also be direction indicated by the arrow.

＜<The third form of scanning control of LED array>> FIG. 12 is an explanatory diagram of a third mode of scanning control of the LED array 122 . In FIG. 12 , the division of each driver coverage area 204 (each LED array 122 ) in the screen of Wall 201, and the trend of scanning performed by the LED driver 121 relative to each driver coverage area 204 (each LED array 122 ), is instantiated in the scope of a part of Wall201. Frame A and frame B in FIG. 12 indicate that the scanning direction is alternately switched from frame A to frame B or from frame B to frame A at a predetermined cycle. The period for switching between the A frame and the B frame may also be one frame period (for example, 1/60 second), and may be longer or shorter than that.

Accordingly, whether it is the case of the A frame or the case of the B frame, the same as the second form of FIG. 11, in the entire driver coverage area 204, the scanning direction is unified into the left and right directions, and the direction of scanning is There is a mixture of left and right. At least make the direction of scanning of the drive coverage areas 204 adjacent to each other different from top to bottom, and left and right, that is, the scanning directions of the drive coverage areas 204 arranged in the left and right direction are different from each other toward the left and right way, and the direction of the scanning of the driver coverage area 204 arranged in the vertical direction is different from each other to the left and right, and the scanning is performed.

Once switching from frame A to frame B, or from frame B to frame A, the scanning direction of each driver coverage area 204 is reversed. Thereby, when a moving image is displayed on the screen of the Wall 201, the scanning of the coverage area 204 (LED array 122) of each driver can be synchronized with the moving image in a continuous field spanning a wide range. The second form is more reduced, which can suppress the occurrence of scanning streaks.

In addition, in FIG. 12 , the left arrow can also be changed to an upward arrow, and the right arrow can be changed to a downward arrow, so that the scanning direction of each drive coverage area 204 becomes upward and downward. And the mixed situation exists.

The division of each driver coverage area 204 (each LED array 122) shown in Figure 12 represents the division of Module203, and the direction of scanning of all the driver coverage areas 204 (LED arrays 122) included in the same Module203 can also be direction indicated by the arrow.

＜<The fourth form of scanning control of LED array>> FIG. 13 is an explanatory diagram of a fourth mode of scanning control of the LED array 122 . Tables (data) of A to E in FIG. 13 show the sequence of image lines to be controlled during the scanning when focusing on one driver coverage area 204 (LED array 122 ). The order of image lines to be controlled (referred to as luminous image lines) is switched every predetermined time as shown in the tables A to E of FIG. 13 . The time interval for switching the order of the light-emitting image lines may be, for example, one frame period, or may be other than that.

In the table of A in FIG. 13 , the luminescent image lines are the image line numbers marked from top to bottom in the table, according to the 1st image line, the 2nd image line, the 3rd image line, the 4th image line, And the order of the 5th image line is switched. In addition, assuming that the number of image lines of the LED array 122 is 5, the image line numbers 1 to 5 are marked sequentially from the image line at the edge (the uppermost image line). Once the predetermined time has passed, as shown in the table of B in Figure 13, the luminescent image lines are made in the order of the 5th image line, the 4th image line, the 3rd image line, the 2nd image line, and the 1st image line. switch. In this way, the LED driver 121 switches the order of the image lines to be controlled during scanning in accordance with the order shown in the tables A to E of FIG. 13 every time a predetermined time elapses. After switching according to the sequence shown in the table E of Figure 13, the LED driver 121 can also be switched according to the sequence shown in other tables, and can also repeat the steps shown in the tables A to E of Figure 13. order to switch. Such a table (data) for determining the order of the luminous image lines is set individually for each LED driver 121 (each driver coverage 204), and the order of the luminous image lines shown in each table (data) is randomly determined. .

Accordingly, scanning is performed in such a manner that the sequence of light-emitting image lines during scanning of the area 204 (each LED array 122 ) covered by each driver is different from that of the surrounding areas, and is also different in time. In this way, when a moving image is displayed on the screen of Wall 201, in a continuous area spanning a wide range, it is possible to reduce the synchronization of scanning and moving images of the coverage area 204 (LED array 122) of each driver, and to suppress Occurrence of scanning streaks.

In addition, in the fourth form, the scanning direction of each driver coverage area 204 (each LED array 122 ) can be: only the left-right direction, only the up-down direction, or a mixture of left-right direction and up-down direction. The order of the light-emitting image lines may not be set individually for each LED driver 121 (coverage area 204 of each driver), but set according to each Module 203 .

＜<Application examples of the second to fourth aspects of LED array scan control>> Next, the second to fourth aspects of the scan control of the LED array 122 will be described by taking the case where they are applied to the Wall 201 constituted by the Module 203 as follows as an example. FIG. 14 is a diagram showing a configuration example of an arbitrary Module 203 among a plurality of Modules 203 constituting the Wall 201 (Cabinet 202 ). Module 203 in FIG. 14 contains 4 driver coverage areas 204-1 to 204-4. The division of 1 driver coverage area 204 is composed of 1 LED array 122, which is scanned by 1 LED driver 121. Control, therefore the driver coverage range 204 - 1 to 204 - 4 , is the area that is scanned and controlled by the 4 LED drivers 121 . Also, these four LED drivers 121 are identified by drivers 1 to 4, and the driver coverage ranges 204-1 to 204-4 are respectively called the area of driver 1, the area of driver 2, the area of driver 3, and the area of driver 4 area.

In FIG. 14, the LED array 122 arranged in the area of each driver 1 to 4 has five image lines with the vertical direction as the image line direction, and the left and right direction as the scanning direction. Among the five image lines, image line numbers 1 to 5 are sequentially indicated from the image line at the left end, for example, an image line with an image line number n is called an n image line, or an nth image line.

＜<Application example of normal scan control>> FIG. 15 is an explanatory diagram when normal scan control is applied to the Module 203 of FIG. 14 . A to F in Fig. 15 are, in the usual scan control, the positions of the light-emitting image lines in the areas of the drivers 1 to 4 of the Module 203 (driver coverage ranges 204-1 to 204-4), according to each image Line control time is shown. In addition, image lines filled with oblique lines represent luminescent image lines.

Once scanning is started, as shown in A of FIG. 15 , the light-emitting image lines in the areas of the drivers 1 to 4 (driver coverage ranges 204-1 to 204-4) are the first image line at the left end. Once the light-emitting image lines are switched as the image-line control time elapses, as shown in B of FIG. 2 like lines. Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in C of FIG. It becomes the 3rd image line. Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in D of FIG. becomes the 4th image line. Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in E of FIG. becomes the 5th image line. Then, once the next scan is entered as the image line control time elapses, as shown in F of FIG. Go back to the 1st image line.

According to this, in normal scan control, the direction of scanning in the area of each driver 1 to 4 of Module 203 (driver coverage range 204-1 to 204-4) is all the same to the right, so the image moving to the right There are many areas where synchronization occurs with scanning, and the possibility of scanning streaks is high.

＜<Application example of the second form or the third form of scan control＞＞ FIG. 16 is an explanatory diagram when the second mode or the third mode of scan control is applied to the Module 203 of FIG. 14 . A to F in Fig. 16 is the area of each driver 1 to 4 of Module 203 (driver coverage range 204-1 and 204- The position of the luminescent image line in 4) is shown in the figure according to the control time of each image line. In addition, image lines filled with oblique lines represent luminescent image lines.

Once scanning is started, as shown in A of FIG. 16 , the luminescent image lines in the areas of drivers 1 and 4 (driver coverage areas 204-1 and 204-4) are the first image lines on the left. The luminescent image line in the areas of drivers 2 and 3 (driver coverage areas 204-2 and 204-3) is the fifth image line at the right end.

Once the light-emitting image lines are switched as the image-line control time elapses, as shown in B of FIG. like lines. The luminescent image lines in the areas of drivers 2 and 3 (driver coverage areas 204-2 and 204-3) become the fourth image lines.

Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in C of FIG. 3rd image line. The luminescent image lines in the areas of drivers 2 and 3 (driver coverage areas 204-2 and 204-3) become the third image lines.

Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in D of FIG. 4th image line. The luminescent image lines in the areas of drivers 2 and 3 (driver coverage areas 204-2 and 204-3) become the second image lines.

Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in E of FIG. 5th image line. The luminescent image lines in the areas of drivers 2 and 3 (driver coverage areas 204-2 and 204-3) become the first image lines.

Then, once the next scan is entered as the image line control time elapses, as shown in F of FIG. to the first image line at the left end. The luminescent image lines in the areas of drivers 2 and 3 (driver coverage areas 204-2 and 204-3) return to the fifth image line at the right end.

Accordingly, in normal scan control, the direction of scanning in the area of each driver 1 to 4 (driver coverage 204-1 to 204-4) of Module 203 is divided into rightward and leftward, so rightward or The area where the left-moving image and scanning are likely to be synchronized will be half of that of the usual scanning control, and the occurrence of scanning streaks can be suppressed.

In addition, even if the scanning direction in the area of each driver 1 to 4 of Module 203 (driver coverage range 204-1 to 204-4) is the vertical direction, by applying the second form or the third form of scanning control, it is still possible The occurrence of scanning streaks is suppressed similarly to the case of FIG. 16 .

<<Application example of the fourth form of scan control>> FIG. 17 is an explanatory diagram when the fourth mode of scan control is applied to the Module 203 of FIG. 14 . A to F in FIG. 17 are, in the fourth form of scanning control, the positions of the light-emitting image lines in the areas of the drivers 1 to 4 of the Module 203 (driver coverage ranges 204-1 to 204-4), according to each A line controls time and is shown graphically. In addition, image lines filled with oblique lines represent luminescent image lines.

Once scanning is started, as shown in A of FIG. 17 , the luminescent image line in the area of the driver 1 (driver coverage area 204-1) is the first image line at the left end. The luminescent image line in the area of the driver 2 (driver coverage area 204-2) is the fourth image line. The luminescent image line in the area of the driver 3 (driver coverage area 204-3) is the third image line. The luminescent image line in the area of the driver 4 (driver coverage area 204-4) is the fifth image line at the right end.

Once the light-emitting image lines are switched as the image-line control time elapses, as shown in B of FIG. 17 , the light-emitting image lines in the area of the driver 1 (driver coverage area 204-1) become the second image lines. The luminescent image lines in the area of the driver 2 (driver coverage area 204-2) become the first image lines. The luminescent image lines in the area of the driver 3 (driver coverage area 204-3) become the first image lines. The luminescent image lines in the area of the driver 4 (driver coverage area 204-4) become the third image lines.

Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in C of FIG. 17 , the light-emitting image lines in the driver 1 area (driver coverage area 204-1) become the third image lines. The luminescent image line in the area of the driver 2 (driver coverage area 204-2) becomes the fifth image line. The luminescent image line in the area of the driver 3 (driver coverage area 204-3) becomes the fourth image line. The luminescent image lines in the area of the driver 4 (driver coverage area 204-4) become the first image lines.

Then, once the light-emitting image lines are switched as the image-line control time elapses, as shown in D of FIG. 17 , the light-emitting image lines in the area of the driver 1 (driver coverage area 204-1) become the fourth image lines. The luminescent image lines in the area of the driver 2 (driver coverage area 204-2) become the second image lines. The luminescent image lines in the area of the driver 3 (driver coverage area 204-3) become the second image lines. The luminescent image line in the area of the driver 4 (driver coverage area 204-4) becomes the fourth image line.

Then, once the light-emitting image line is switched as the image-line control time elapses, as shown in E of FIG. 17 , the light-emitting image line in the area of the driver 1 (driver coverage area 204-1) becomes the fifth image line. The luminescent image lines in the area of the driver 2 (driver coverage area 204-2) become the third image lines. The luminescent image line in the area of the driver 3 (driver coverage area 204-3) becomes the fifth image line. The luminescent image lines in the area of the driver 4 (driver coverage area 204-4) become the second image lines.

Then, once the next scan is entered as the image line control time elapses, as shown in F of FIG. Wire. The luminous image lines in the area of the driver 2 (driver coverage area 204-2) return to the 4th image line. The luminescent image lines in the area of the driver 3 (driver coverage area 204-3) return to the third image line. The luminescent image lines in the area of the driver 4 (driver coverage area 204-4) return to the fifth image line at the right end. In addition, when the data indicating the order of the emission image lines is switched, the positions of the emission image lines in F of FIG. 17 are different from the positions of the emission image lines in A of FIG. 17 .

Accordingly, in normal scan control, the direction of scanning in the areas of the drivers 1 to 4 of the Module 203 (driver coverage ranges 204-1 to 204-4) will also change randomly between scans of one scan. , so that there is no possibility of synchronous scanning between moving images and scanning areas, which can suppress the occurrence of scanning streaks.

<<Scanning direction switching process in the third form of scan control>> FIG. 18 is an exemplary flow chart of a processing procedure related to switching of scan directions when the third mode of scan control is applied to the Module 203 of FIG. 14 . In addition, in this flowchart, it is assumed that the scanning direction of the areas of the drivers 1 to 4 of the Module 203 in FIG. 14 (driver coverage ranges 204-1 to 204-4) is the up-down direction. In addition, in the description of this flowchart, only one Module 203 is focused.

In step S1, the CPU 301 of the video wall controller 32 in FIG. 9 sends control data to the drivers 1 to 4 of the Module 203, and performs initial scan settings. Thereby, the initial setting of the scanning control regarding the direction of scanning, the number of repetitions of scanning between one frame period, etc. in the area of each driver 1 to 4 is performed. The process proceeds from step S1 to step S2.

In step S2, the CPU 301 determines whether the image displayed on the Wall 201 is a vertical blanking period. In step S2, if negative, the process repeats step S2. In step S2, if it is affirmative, the process proceeds to step S3.

In step S3, the CPU 301 adds 1 to the value of the counter. The value of the counter is 0 or 1, and when the value of the counter is 1, it becomes 0 when 1 is added. The process proceeds to step S4.

In step S4, the CPU 301 sends control data to the drivers 1 to 4 of the Module 203 to perform scan settings corresponding to the counter values. In the scanning setting, the CPU 301 refers to the data in the scanning direction setting table as shown in FIG. 19 , for example. In the data of the scanning direction setting table, the value of the counter (0 or 1) represents the direction of scanning set for each driver 1 to 4. The CPU 301 obtains the scanning direction of each driver 1 to 4 corresponding to the value of the counter from the data in the scanning direction setting table, and sets the obtained scanning direction to each driver 1 to 4. Thereby, the scanning direction of the area of each driver 1 to 4 is changed to the direction represented by the data of the scanning direction setting table according to the value of the counter. The processing returns from step S4 to step S2, and steps S2 to S4 are repeated. In this way, the value of the counter is changed every frame period, so the scan direction of the areas of the drivers 1 to 4 is changed every frame period. FIG. 20 is a graph showing the direction of scanning in the areas of the drivers 1 to 4 when the direction of scanning is changed according to the data in the scanning direction setting table of FIG. 19 . When the value of the counter is 0, the scanning direction of the areas of the drivers 1 and 4 is upward, and the scanning direction of the areas of the drivers 2 and 3 is downward. When the value of the counter is 1, the scanning direction of the areas of drivers 1 and 4 is downward, and the direction of scanning of the areas of drivers 2 and 3 is upward. The value of the counter alternately switches between 0 and 1 in a frame period, so the scanning direction of the areas of the drivers 1 to 4 is reversed in a frame period.

<<Switching process of the sequence of light-emitting image lines in the fourth form of scanning control>> FIG. 21 is a flowchart illustrating an example of a processing procedure for switching the order of emission image lines when the fourth mode of scanning control is applied to the Module 203 of FIG. 14 . In addition, only one Module 203 is focused on in the description of this flowchart.

In step S11 , the CPU 301 of the video wall controller 32 in FIG. 9 sends control data to the drivers 1 to 4 of the Module 203 and performs initial scan settings. Thereby, the initial setting of the scan control regarding the order of the light-emitting image lines at the time of scanning, the number of repetitions of scanning between one frame period, and the like in the areas of the respective drivers 1 to 4 is performed. The process proceeds from step S11 to step S12.

In step S12, the CPU 301 determines whether the image displayed on the Wall 201 is a horizontal blanking period. In step S12, if negative, the process repeats step S12. In step S12, if it is affirmative, the process proceeds to step S13.

In step S13, the CPU 301 adds 1 to the value of the counter. The value of the counter is from 0 to 3, and when the value of the counter is 3, it becomes 0 when 1 is added. The process proceeds to step S14.

In step S14, the CPU 301 sends control data to the drivers 1 to 4 of the Module 203 to perform scan settings corresponding to the counter values. In the scan setting, the CPU 301 refers, for example, to the data in the scan order (emission image line order) setting table as shown in FIG. 22 . In the data of the scanning sequence setting table, the value of the counter (0, 1, 2, or 3) represents the sequence of the light-emitting image lines set for each driver 1 to 4. The CPU 301 obtains the order of the light-emitting image lines of the drivers 1 to 4 corresponding to the value of the counter from the data in the scanning order setting table, and sets the obtained order of the light-emitting image lines to the drivers 1 to 4. Thereby, when scanning the area of each driver 1 to 4, the order of the light-emitting image lines is changed to the order represented by the data of the scanning order setting table according to the value of the counter. The processing returns from step S14 to step S12, and steps S12 to S14 are repeated. Thereby, the value of the counter is changed along with one horizontal scanning period of the displayed image, so the order of the light-emitting image lines in the areas of the drivers 1 to 4 is changed every one horizontal scanning period.

This technical system may also take the following configurations. (1) An information processing system has: display unit; and A plurality of drivers are provided corresponding to each of the plurality of divisions that divide the aforementioned display unit, and the plurality of drivers are driven by switching the image lines for scanning among the plurality of image lines. pixel to drive the pixels included in the aforementioned division; The plurality of drivers are different drivers including the direction of the previous scan and the order of the previous image lines for performing the previous scan. (2) The information processing system described in (1) above, wherein, The direction of the preceding scanning of the preceding driver is set by the wiring connected to the preceding pixel. (3) The information processing system described in (1) above, wherein, The forward scanning direction of the forward driver is set by the installation direction of the substrate on which the forward driver and the forward pixels are constructed relative to the forward display part during manufacture. (4) The information processing system described in any one of (1) to (3) above, wherein, The direction of the preamble scan of the preamble driver, or the order of the preamble picture lines on which the preamble scan is performed, is set by the data supplied to the preamble driver. (5) The information processing system described in any one of (1) to (4) above, wherein, The direction of the preceding scan is different for the preceding drives corresponding to the adjacent preceding areas. (6) The information processing system described in any one of (1) to (5) above, wherein, For the previous drivers corresponding to the adjacent previous zones, the direction of the previous scan is reversed. (7) The information processing system described in any one of (1) to (6) above, wherein, The aforementioned driver is such that the direction of the aforementioned scanning is changed every predetermined time. (8) The information processing system described in any one of (1) to (4) above, wherein, In the preamble driver, the order of the preamble image lines for the preamble scanning is randomly set. (9) The information processing system described in any one of (1) to (4) and (8) above, wherein, The preamble driver is such that the order of the preamble scanning is changed every predetermined time. (10) The information processing system described in any one of (1) to (9) above, wherein, The display part mentioned above is composed of a plurality of separable cabinets. (11) The information processing system described in (10) above, wherein, The aforementioned Cabinet is composed of a plurality of Modules that can be separated according to the unit of the substrate where the aforementioned pixels are arranged and constructed in plural. (12) The information processing system described in (11) above, wherein, The aforementioned division is the division of each aforementioned Module; For each of the aforementioned divisions, a plurality of corresponding aforementioned drivers are provided. (13) The information processing system described in (12) above, wherein, Among the plurality of drivers, the drivers corresponding to the same region have the same scanning direction. (14) The information processing system described in any one of (11) to (13) above, wherein, The aforementioned pixel is a light-emitting element; The aforementioned Module is composed of a plurality of arrays of light-emitting elements driven by a plurality of drivers. (15) The information processing system described in (14) above, wherein, The aforementioned divisions are the divisions of each of the aforementioned light-emitting element arrays. (16) The information processing system described in any one of (10) to (15) above, wherein, have: The controller obtains an image to be displayed on the aforementioned display unit, divides the image to be displayed on each of the aforementioned plurality of Cabinets, and supplies the image to each of the aforementioned plurality of Cabinets. (17) The information processing system described in (16) above, wherein, The preamble controller supplies data for setting the direction of the preamble scanning of the preamble driver or the sequence of the preamble image lines for performing the preamble scan to the preamble driver. (18) The information processing system described in any one of (1) to (17) above, wherein, The above-mentioned display part is that the light-emitting element array formed by a plurality of light-emitting elements that emit light for each pixel is arranged in plural and constituted; The preceding driver drives the preceding light-emitting element array in a passive matrix driving manner. (19) An information processing method has: display unit; and a plurality of drives; and The information processing method of the information processing system, wherein, The aforementioned plurality of drivers are provided corresponding to each of the plurality of divisions that divide the aforementioned display unit, and among the plurality of image lines, the aforementioned pixels are switched by switching the image lines that are scanned to switch the pixels that are driven. The pixels contained in the division are driven; The plurality of drivers drive the pixels included in the preceding section in such a manner that any one of the direction of the preceding scanning and the order of the preceding image lines on which the preceding scanning is performed is different. (20) The information processing method described in (19) above, wherein, Corresponding to the preamble drivers adjacent to each other, the direction of the preamble scanning is reversed.

11: Display system 30:PC 31: Video server 32:TV wall controller 33: TV wall 51: Display unit 71: LAN terminal 72A: HDMI terminal 72B:DP terminal 72C: DVI terminal 72D: SDI terminal 75:Network IF 76: MPU 77: Signal input IF 78: Signal processing department 79:DRAM 80: Signal distribution department 81: Output IF 91: Driver control department 92:LED block 111: Signal input IF 112: Signal processing department 113:DRAM 114: Output IF 121: LED driver 122: LED array 141:LED 201: Wall 202:Cabinet 203:Module 204:Drive coverage 251:Signal processing substrate 301:CPU 321:IF substrate

[FIG. 1] An explanatory diagram of a configuration example of a display system of the present disclosure. [FIG. 2] An explanatory diagram of a configuration example of a video wall controller and a display unit in FIG. 1. [FIG. [FIG. 3] An explanatory diagram of a configuration example of an LED array. [Fig. 4] An explanatory diagram of the screen composition of the TV wall. [Fig. 5] An explanatory diagram of the structure of display control of Cabinet. [Fig. 6] An illustration of the configuration of the LED array (driver coverage). [FIG. 7] An explanatory diagram of normal scan control of an LED array by an LED driver. [FIG. 8] An explanatory diagram of the subject of normal scan control. [FIG. 9] A block diagram of an example of the configuration required for setting the scan of each driver coverage area (LED array) in the Wall. [ Fig. 10 ] An explanatory diagram of a first form of scanning control of an LED array. [ Fig. 11 ] An explanatory diagram of a second mode of scanning control of an LED array. [ Fig. 12 ] An explanatory diagram of a third mode of scanning control of an LED array. [ Fig. 13 ] An explanatory diagram of a fourth mode of scanning control of an LED array. [Fig. 14] Diagram of a configuration example of Module. [ Fig. 15 ] An explanatory diagram when normal scan control is applied to the Module of Fig. 14 . [ Fig. 16 ] An explanatory diagram when the second mode or the third mode of scan control is applied to the Module of Fig. 14 . [ Fig. 17] Fig. 17 is an explanatory diagram when the fourth form of scan control is applied to the Module of Fig. 14 . [ Fig. 18] Fig. 18 is an exemplary flow chart of a processing procedure related to switching of scanning directions when the third mode of scanning control is applied to the Module of Fig. 14 . [ Fig. 19 ] An example diagram of the data of the scanning direction setting table. [ Fig. 20 ] A diagram showing when the scanning direction is changed according to the data in the scanning direction setting table of Fig. 19 . [ Fig. 21] Fig. 14 is an exemplary flow chart of a processing procedure for switching the order of emission image lines when the fourth mode of scanning control is applied to the Module of Fig. 14 . [FIG. 22] An example diagram of the data in the scanning order (light emitting image line order) setting table.

11: Display system

30:PC

31: Video server

32:TV wall controller

51: Display unit

71: LAN terminal

72A: HDMI terminal

72B:DP terminal

72C: DVI terminal

72D: SDI terminal

75:Network IF

76: MPU

77: Signal input IF

78: Signal processing department

79:DRAM

80: Signal distribution department

81-1: Output IF

81-2: Output IF

81-3: Output IF

81-n: output IF

91: Driver control department

92:LED block

111: Signal input IF

112: Signal processing department

113:DRAM

114-1: Output IF

114-2: Output IF

114-3: Output IF

114-M: output IF

121-1: LED driver

121-2: LED driver

121-3: LED driver

121-M: LED driver

122-1:LED array

122-2:LED array

122-3:LED array

122-M: LED array

Claims (20)

An information processing system has: display unit; and A plurality of drivers are provided corresponding to each of the plurality of divisions that divide the aforementioned display unit, and the plurality of drivers are driven by switching the image lines for scanning among the plurality of image lines. pixel to drive the pixels included in the aforementioned division; The plurality of drivers are different drivers including the direction of the previous scan and the order of the previous image lines for performing the previous scan. The information processing system as described in Claim 1, wherein, The direction of the preceding scanning of the preceding driver is set by the wiring connected to the preceding pixel. The information processing system as described in Claim 1, wherein, The forward scanning direction of the forward driver is set by the installation direction of the substrate on which the forward driver and the forward pixels are constructed relative to the forward display part during manufacture. The information processing system as described in Claim 1, wherein, The direction of the preamble scan of the preamble driver, or the order of the preamble picture lines on which the preamble scan is performed, is set by the data supplied to the preamble driver. The information processing system as described in Claim 1, wherein, The direction of the preceding scan is different for the preceding drives corresponding to the adjacent preceding areas. The information processing system as described in Claim 1, wherein, For the previous drivers corresponding to the adjacent previous zones, the direction of the previous scan is reversed. The information processing system as described in Claim 1, wherein, The preamble driver is such that the direction of the preamble scan is changed as time passes. The information processing system as described in Claim 1, wherein, In the preamble driver, the order of the preamble image lines for the preamble scanning is randomly set. The information processing system as described in Claim 1, wherein, The preamble driver is such that the order of the preamble scanning is changed as time passes. The information processing system as described in Claim 1, wherein, The display part mentioned above is composed of a plurality of separable cabinets. The information processing system as described in Claim 10, wherein, The aforementioned Cabinet is composed of a plurality of Modules that can be separated according to the unit of the substrate where the aforementioned pixels are arranged and constructed in plural. The information processing system as described in Claim 11, wherein, The aforementioned division is the division of each aforementioned Module; For each of the aforementioned divisions, a plurality of corresponding aforementioned drivers are provided. The information processing system as described in Claim 12, wherein, Among the plurality of drivers, the drivers corresponding to the same region have the same scanning direction. The information processing system as described in Claim 11, wherein, The aforementioned pixel is a light-emitting element; The aforementioned Module is composed of a plurality of arrays of light-emitting elements driven by a plurality of drivers. The information processing system as described in Claim 14, wherein, The aforementioned divisions are the divisions of each of the aforementioned light-emitting element arrays. The information processing system as described in Claim 10, wherein, have: The controller obtains an image to be displayed on the above-mentioned display unit, divides the image to be displayed on each of the above-mentioned plural Cabinets, and supplies it to each of the above-mentioned plural Cabinets. The information processing system as described in Claim 16, wherein, The preamble controller supplies data for setting the direction of the preamble scanning of the preamble driver, or the sequence of the preamble image lines for performing the preamble scan, to the preamble driver. The information processing system as described in Claim 1, wherein, The above-mentioned display part is that the light-emitting element array formed by a plurality of light-emitting elements that emit light for each pixel is arranged in plural and constituted; The preceding driver drives the preceding light-emitting element array in a passive matrix driving manner. An information processing method has: display unit; and multiple drives The information processing method of the information processing system, wherein, The aforementioned plurality of drivers are provided corresponding to each of the plurality of divisions that divide the aforementioned display unit, and among the plurality of image lines, the aforementioned pixels are switched by switching the image lines that are scanned to switch the pixels that are driven. The pixels contained in the division are driven; The plurality of drivers drive the pixels included in the preceding section in such a manner that any one of the direction of the preceding scanning and the order of the preceding image lines on which the preceding scanning is performed is different. The information processing method described in Claim 19, wherein, Corresponding to the preamble drivers adjacent to each other, the direction of the preamble scanning is reversed.

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