US20200043442A1 - Display system with light bars along the edges of the display - Google Patents
Display system with light bars along the edges of the display Download PDFInfo
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- US20200043442A1 US20200043442A1 US16/106,003 US201816106003A US2020043442A1 US 20200043442 A1 US20200043442 A1 US 20200043442A1 US 201816106003 A US201816106003 A US 201816106003A US 2020043442 A1 US2020043442 A1 US 2020043442A1
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- light bar
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- 238000000034 method Methods 0.000 claims description 81
- 239000003086 colorant Substances 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2003—Display of colours
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
- G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0613—The adjustment depending on the type of the information to be displayed
- G09G2320/062—Adjustment of illumination source parameters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/08—Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/16—Use of wireless transmission of display information
Definitions
- the present invention is related to a display system, and more particularly, to a display system with light bars along the edges of the display.
- the video walls built by multiple video display screens can present large size images, and are widely used in concerts, exhibitions, and malls for displaying the real-time performance and commercials.
- the huge size images displayed by the video walls can often provide exciting visual effect and appeal customers.
- the video display screens may also combine with other devices such as light bars surrounding the video display screens.
- these display devices will require different number of screens and form the video walls having different sizes and different shapes. Therefore, the setting of the display devices is complicated and requires lots of effort for adjustment.
- the display system includes a display, a light bar, and an electronic device.
- the first display displays an image, and the image is at least part of a complete image.
- the light bar includes a plurality of light units disposed along at least part of an edge of the display. The plurality of light units of the light bar are turned on sequentially during a scan process.
- the electronic device includes an image capturing unit, and a control unit.
- the image capturing unit captures an image of the display and the light bar whenever a light unit of the light bar is turned on.
- the control unit is coupled to the image capturing unit.
- the control unit identifies at least a first light unit and a last light unit of the light bar along the edge of the display, generates serial numbers of light units of the light bar along the edge of the display, and generates relative positions of the first light unit and the last light unit of the light bar along the edge of the display according to images captured by the image capturing unit during the scan process and positions of edges of the display.
- colors of light emitted by the light units of the light bar along the edge of the display are determined by part of image data of the image.
- the display system includes an electronic device, a display, and a light bar disposed along at least part of an edge of the display.
- the method includes, during a scan process, deriving positions and directions of edges of the display in space, turning on a plurality of light units of the light bar sequentially, the electronic device capturing an image of the display and the light bar whenever a light unit of the light bar is turned on, the electronic device identifying at least a first light unit and a last light unit of the light bar along the edge of the display according to images captured by the electronic device, the electronic device generating serial numbers of light units of the light bar along the edge of the display, and the electronic device generating relative positions of the first light unit and the last light unit of the light bar on the edge of the display.
- the method includes, during a display process, the first display displaying an image being at least part of a complete image, and the light units of the light bar along the edge of the display emitting light with colors determined by part of image data of the image.
- FIG. 1 shows a display system according to one embodiment of the present invention.
- FIGS. 2 to 5 show some of the images captured by the image capturing unit during the scan process of the display system in FIG. 1 .
- FIG. 6 shows a display system according to another embodiment of the present invention.
- FIG. 7 shows a method for operating the display system in FIG. 1 according to one embodiment of the present invention.
- FIG. 1 shows a display system 100 according to one embodiment of the present invention.
- the display system 100 includes a first display 110 A, a first light bar 120 , and an electronic device 130 .
- the first light bar 120 includes a plurality of light units 122 A disposed along the edges of first display 110 A. For example, some of the light units 122 A are disposed along part of the first edge 110 A 1 of the first display 110 A.
- the electronic device 130 includes an image capturing unit 132 and a control unit 134 , and the control unit 134 is coupled to the image capturing unit 132 .
- the light units 122 A to 122 D of the first light bar 120 can be light emitting diodes.
- the electronic device 130 can be, for example but not limited to, a smart phone, a tablet, or a notebook.
- the first display 110 A can display a first image, and the colors of light emitted by the light units 122 A of the first light bar 120 can be determined by part of the image data of the first image.
- the image data presented by the light units 122 A of the first light bar 120 along the first edge 110 A 1 of the first display 110 A can be the image data received by the corresponding pixels on the first edge 110 A 1 of the first display 110 , or the image data supposedly to be received by pixels next to the corresponding pixels on the first edge 110 A 1 of the first display 110 A. That is, the light bar 120 can be seen as an extension of the first display 110 A for presenting images with the first display 110 A, creating dynamic and refreshing visual effects.
- the part of image data to be presented by the light units 122 A to 122 D of the first light bar 120 can be determined during a scan process. For example, during the scan process, the light units 122 A of the first light bar 120 can be turned on sequentially. That is, the light units 122 A of the first light bar 120 are turned on one by one. Also, the image capturing unit 132 can capture an image of the first display 110 A and the first light bar 120 whenever a light unit 122 A of the first light bar 120 is turned on
- FIGS. 2 to 5 show some of the images captured by the image capturing unit 132 during the scan process of the display system 100 .
- the first light unit 122 A 11 of the first light bar 120 along the first edge 110 A 1 of the first display 110 A is turned on.
- the second light unit 122 A 12 of the first light bar 120 along the first edge 110 A 1 of the first display 110 A is turned on.
- the following light units 122 A along the first edge 110 A 1 of the first display 110 A are turned on sequentially, and in FIG. 4 , the last light unit 122 A 1 X of the first light bar 120 along the first edge 110 A 1 of the first display 110 A is turned on.
- the first light unit 122 A 21 of the first light bar 120 along the second edge 110 A 2 of the first display 110 A is turned on.
- control unit 134 can identify the first light unit 122 A 11 of the first light bar 120 long the first edge 110 A 1 of the first display 110 A when the first light unit 122 A 11 of the first light bar 120 along the first edge 110 A 1 is turned on as shown in FIG. 2 .
- the control unit 134 would be aware that the light units 122 A along the first edge 110 A 1 of the first display 110 A have all been turned on previously, and thus, the control unit 134 can identify the last light unit 122 A 1 X of the first light bar 120 along the first edge 110 A 1 of the first display 110 A accordingly.
- control unit 134 can generate the serial numbers of the light units 122 A of the first light bar 120 along the first edge 110 A 1 of the first display 110 A during the scan process, and generate the relative positions of the first light unit 122 A 11 and the last light unit 122 A 1 X of the first light bar 120 on the first edge 110 A 1 of the first display 110 A according to the images captured by the image capturing unit 132 during the scan process and positions of edges of the first display 110 A.
- the control unit 134 can assign the serial number to the four light units 122 A, such as No. 1 to No. 4. Consequently, the four light units 122 A can be controlled specifically and independently by the control unit 134 .
- the relative positions of the first initial light unit 122 A 11 and the last light unit 122 A 1 X of the first light bar 120 on the first edge 110 A 1 of the first display 110 A can be determined. For example, in FIG. 1 , if the corner 110 AA of the first display 110 A is taken as the initial terminal of the first edge 110 A 1 and the corner 110 AB is taken as the ending terminal of the first edge 110 A 1 , then the control unit 134 can determine that the first light unit 122 A 11 is near the middle of the first edge 110 A 1 and relatively closer to corner 110 AB of the first edge 110 A 1 according to the image as shown in FIG. 2 . In this case, the relative position of first initial light unit 122 A 11 along the first edge 110 A 1 of the first display 110 A can be denoted as, for example, but not limited to, 0.6 or 60%.
- first initial light unit 122 A 1 X is at the end terminal of the first edge 110 A 1 of the first display 110 A
- the relative position of first initial light unit 122 A 1 X on the first edge 110 A 1 of the first display 110 A can be denoted as 1 or 100% accordingly.
- the part of image data of the first image to be presented by the light units 122 A of the first light bar 120 along the first edge 110 A 1 can be derived according to the relative positions of the first light unit 122 A 11 and the last light unit 122 A 1 X on the first edge 110 A 1 of the first display 110 A and the serial numbers of the light units 122 A of the first light bar 120 along the first edge 110 A 1 .
- the first light bar 120 can be coupled to a light bar controller (which is not depicted in FIG. 1 ) disposed in the first display 110 A, and, with the relative positions of the first light unit 122 A 11 and the last light unit 122 A 1 X on the first edge 110 A 1 of the first display 110 A, the light bar controller can determine the related part of the first image to be presented by the first light unit 122 A 11 and the last light unit 122 A 1 X, that is, the data image to be presented by the pixels corresponding to the first light unit 122 A 11 and the last light unit 122 A 1 X.
- the image data to be presented by the light units 122 A along the first edge 110 A 1 can all be determined by finding the corresponding pixels of the first display 110 A according to the related part of the first image to be presented by the first light unit 122 A 11 and the last light unit 122 A 1 X by, for example but not limited to, interpolation.
- the positions of edges of the first display 110 A and the disposing direction of the first display 110 A can be determined in advance and can be known factors for the control unit 134 (e.g., the techniques taught in US patent Publication No. 20170337028) . Therefore, the control unit 134 can identify the first edge 110 A 1 of the first display 110 A, determine the relative positions of the light units 122 A on the first edge 110 A 1 according to the images captured by the image capturing unit 132 , and determine the image data to be presented by the light units 122 A along the first edge 110 A of the first display 110 A.
- part of the first light bar 120 is disposed along the second edge 110 A 2 of the first display 110 A connecting to the first edge 110 A 1 of the first display 110 A.
- the control unit 134 can also identify the first light unit 122 A 21 and the last light unit 122 A 2 Y of the first light bar 120 along the second edge 110 A 2 of the first display 110 A according to the images captured by the image capturing unit 132 during the scan process, for example, FIG. 5 .
- the control unit 134 can record the serial numbers of the light units 122 A of the first light bar 120 along the second edge 110 A 2 of the first display 110 A, and record the relative positions of the first light unit 122 A 21 and the last light unit 122 A 2 Y on the second edge 110 A 2 of the first display 110 A.
- the part of image data of the first image to be presented by the light units 122 A of the first light bar 120 along the second edge 110 A 2 of the first display 110 A can be derived accordingly.
- the part of image data of the first image to be presented by the light units 122 A of the first light bar 120 along the third edge 110 A 3 of the first display 110 A can also be derived during the scan process with the same approach.
- the display system 100 further includes a second display 110 B, a third display 110 C, and a fourth display 110 D.
- the displays 110 A to 110 D can be spliced together to form a video wall. That is, the images displayed by the displays 110 A to 110 D can be different parts of a complete image.
- the first light bar 120 can also be disposed along the edges of the displays 110 B to 110 D. For example, the first light bar 120 is disposed along part of the first edge 110 B 1 of the second display 110 B.
- the control unit 134 can also identify the first light unit 122 B 11 and the last light unit 122 B 1 X of the first light bar 120 along the first edge 110 B 1 of the second display 110 B according to the images captured by the image capturing unit 132 during the scan process and the positions of edges of the second display 110 B determined in advance.
- control unit 134 can record the serial numbers of the light units 122 B of the first light bar 120 along the first edge 110 B 1 of the second display 110 B, and record the relative positions of the first light unit 122 B 11 and the last light unit 122 B 1 X on the first edge 110 B 1 of the second display 110 B as shown in FIGS. 2 to 5 . Consequently, during the display process, the light units 122 B of the first light bar 120 along the first edge 110 B 1 of the second display 110 B can emit light according to the related part of image data of the second image displayed by the second display 110 B.
- the first light bar 120 can be disposed along the edges of the spliced displays 110 A and 110 D, and the relative positions of the light units 122 A to 122 D of the first light bar 120 on the edges of the spliced displays 110 A and 110 D can be determined during the scan process automatically, reducing complicated manual operations and simplifying the system set up process.
- the display system 100 may include more displays or fewer displays.
- the display system 100 may include ten displays or only one display.
- the first light bar may not cover all the outer edges of the spliced displays, and may cover only parts of the outer edges of the spliced displays.
- the same scan process aforementioned can be applied to the display systems with different numbers of displays and with different shapes of the spliced displays.
- the first light bar 120 can be coupled to the light bar controller (which is not depicted in FIG. 1 ) disposed in the first display 110 A, and the light bar controller can control the first light bar 120 according to the demands from the electronic device 130 .
- the electronic device 130 can further include a wireless communications unit 136 .
- the wireless communications unit 136 can build wireless communications between the electronic device 130 and the first display 110 A.
- the control unit 134 can demand the light bar controller in the first display 110 A to activate the plurality of light units 122 A of the first light bar 120 to emit light sequentially during the scan process through the wireless communications.
- the light bar controller can decide the color and the brightness to be presented by the first light bar 120 according to the image data of the complete image, and the positions and the serial numbers of the light units in the first light bar 120 .
- the light bar controller can be disposed in the display 110 A, however, in some other embodiments, the light bar controller can also be an external device disposed outside of the display 110 A.
- the first light bar 120 may pass its control commands through the light units 122 A, that is, the command to be received by the last light unit 122 A in the first light bar 120 is actually passed by every light unit 122 A in the first light bar 120 . Therefore, the longer the first light bar 120 and the more light units 122 A in the first light bar 120 , the longer it will take to control all the light units 122 A. In this case, if the first light bar 120 is disposed to surround many displays, then the light units 122 A may not be controlled to emit the light accordingly in time as the images displayed by the displays change.
- the display system may include more light bars.
- FIG. 6 shows a display system 200 according to another embodiment of the present invention.
- the display system 200 and the display system 100 have similar structures and can be operated with similar principles.
- the display system 200 includes a first light bar 220 A and a second light bar 220 B.
- the second light bar 220 B includes a plurality of light units 222 B disposed along the edges of the second display 110 B.
- the second light bar 220 B can active each light unit 222 B of the second light bar 220 B to emit light sequentially, and the image capturing unit 232 would capture the image of the second light bar 220 B and the second display 110 B whenever a light unit 222 B emits light. Consequently, the control unit 234 would be able to identify the light units 222 B on each edge of the second display 110 B according to the images captured by the image capturing unit 232 and the positions of edges of the second display 110 B.
- the control unit 234 can identify the first light unit 222 B 11 and the last light unit 222 B 1 X of the second light bar 220 B along the first edge 110 B 1 of the second display 110 B according to the images captured by the image capturing unit 232 and the positions of edges of the second display 110 B. Consequently, during the display process, the light units 222 B of the second light bar 220 B along the first edge 110 B 1 of the second display 110 B can emit light according to the part of image data of the second image.
- the light bars 220 A to 220 D can be controlled by different light bar controllers disposed in the displays 110 A to 110 D.
- the first light bar 220 A may be controlled by a light bar controller disposed in the first display 110 A
- the second light bar 220 B maybe controlled by a light bar controller disposed in the second display 110 B. Since the light bars 220 A to 220 D can be controlled by different light bar controllers, the time required for transmitting commands to the light units in the light bars 220 A to 220 D can be reduced.
- the last light unit 222 B 1 X can be identified when the first light unit 222 B 21 along the second edge 110 B 2 of the second display 110 B is turned on and captured by the image capturing unit 232 .
- the control unit 234 may identify the last light unit 222 B 3 Z of the second light bar 220 B along the third edge 110 B 3 of the second display 110 B when no more light unit emits light during the scan process.
- the image capturing unit 232 can capture the displays 110 A to 110 B and the light bars 220 A and 220 B in the same image.
- the first light unit 222 A 11 of the first light bar 220 A along the first edge 110 A 1 of the first display 110 A and the first light unit 222 B 11 of the second light bar 220 B along the first edge 110 B 1 of the second display 110 B can emit light simultaneously with different colors during the scan process, and the control unit 234 can identify the first light unit 222 A 11 and the first light unit 222 B 11 according to the same image captured by the image capturing unit 232 . That is, the scan process for the first light bar 220 A and the second light bar 220 B can be performed in parallel, reducing the required processing time.
- the display system 200 can further include a third light bar 220 C along the edges of the third display 110 C and a fourth light bar 220 D along the edge of the fourth display 110 D.
- the similar scan process can be applied to the third light bar 220 C and the fourth light bar 220 D, and the scan processes for the light bars 220 A to 220 D can be performed concurrently.
- the different light bars 220 A to 220 D can be disposed along the edges of the spliced displays 110 A and 110 D, and the relative positions of the light units of the different light bars 220 A to 220 D on the edges of the spliced displays 110 A and 110 D can be determined during the scan process automatically, reducing complicated manual operations and simplifying the system set up process.
- FIG. 7 shows a method 300 for operating the display system 100 during the scan process according to one embodiment of the present invention.
- the method 300 includes steps S 310 to S 370 , but is not limited to the order shown in FIG. 7 .
- S 310 derive the positions and directions of the edges of the displays 110 A to 110 D in space;
- the electronic device 130 captures an image of the first display 110 A and the first light bar 120 whenever a light unit of the first light bar 120 is turned on;
- the electronic device 130 identifies the first light unit 122 A 11 and the last light unit 122 A 1 X of the first light bar 120 along the first edge 110 A 1 of the first display 110 A according to the images captured by the electronic device 130 ;
- the electronic device 130 identifies the first light unit 122 A 21 and the last light unit 122 A 2 Y of the first light bar 120 along the second edge 110 A 2 of the first display 110 A according to images captured by the electronic device 130 ;
- the electronic device 130 identifies the first light unit 122 B 11 and the last light unit 122 B 1 X of the first light bar 120 along the first edge 110 B 1 of the second display 110 B according to images captured by the electronic device 130 ;
- the electronic device 130 generates the serial numbers of light units 122 A of the first light bar 120 along the first edge 110 A 1 of the first display 110 A;
- the electronic device 130 generates the relative positions of the first light unit 122 A 11 and the last light unit 122 A 1 X of the first light bar 120 along the first edge 110 A 1 of the first display 110 A;
- the electronic device 130 generates the relative positions of the first light unit 122 A 21 and the last light unit 122 A 2 Y of the first light bar 120 along the second edge 110 A 2 of the first display 110 A;
- S 370 derive the image data to be presented by the light units 122 A to 122 D of the first light bar 120 according to the serial numbers of the light units 122 A, 122 B, 122 C, 122 D of the first light bar 120 along the edges of the displays 110 A to 110 D, and the relative positions of the first light units and the last light units of the first light bar 120 on the edges of the displays 110 A to 110 D.
- the image data to be presented by the light units 122 A of the first light bar 120 can be determined during the scan process. Consequently, during the display process, the first display 110 A and the second display 110 B can display the first image and the second image respectively, the light units 122 A of the first light bar 120 along the edges of the first display 110 A can emit light according to the corresponding part of image part of the first image, and the light units 122 B of the first light bar 120 along the edges of the second display 110 B can emit light according to the corresponding part of image part of the second image.
- the display system may include more light bars.
- the display system 200 can include the light bars 220 A to 220 D, each along the edges of the displays 110 A to 110 D.
- similar approaches shown in FIG. 7 can also be applied to perform the scan process.
- the first light unit 222 A 11 of the first light bar 220 A and the first light unit 222 B 11 of the second light bar 220 B can emit light simultaneously with different colors.
- the electronic device 230 can identify the first light unit 222 A 11 of the first light bar 220 A along the first edge 110 A 1 of the first display 110 A and the first light unit 222 B 11 of the second light bar 220 B along the first edge 110 B 1 of the second display 110 B according to the same image.
- the display systems and the method for operating the display systems provided by the embodiments of the present invention can determine the relative positions of the light units of the light bars on the edges of the spliced displays during the scan process automatically. Therefore, the image data to be presented by the light units of the light bars during the display process can be determined accordingly, and the desired visual effects can be created. Furthermore, the complicate manual operations for setting up the display system can be saved, and the set up time can also be reduced.
Abstract
Description
- The present invention is related to a display system, and more particularly, to a display system with light bars along the edges of the display.
- As the display technology grows, more and more visual effects are created. For example, the video walls built by multiple video display screens can present large size images, and are widely used in concerts, exhibitions, and malls for displaying the real-time performance and commercials. The huge size images displayed by the video walls can often provide exciting visual effect and appeal customers.
- Also, to create even more exciting and novel visual effects, the video display screens may also combine with other devices such as light bars surrounding the video display screens. However, to meet the site requirement, these display devices will require different number of screens and form the video walls having different sizes and different shapes. Therefore, the setting of the display devices is complicated and requires lots of effort for adjustment.
- One embodiment of the present invention discloses a display system. The display system includes a display, a light bar, and an electronic device.
- The first display displays an image, and the image is at least part of a complete image. The light bar includes a plurality of light units disposed along at least part of an edge of the display. The plurality of light units of the light bar are turned on sequentially during a scan process.
- The electronic device includes an image capturing unit, and a control unit. The image capturing unit captures an image of the display and the light bar whenever a light unit of the light bar is turned on. The control unit is coupled to the image capturing unit. The control unit identifies at least a first light unit and a last light unit of the light bar along the edge of the display, generates serial numbers of light units of the light bar along the edge of the display, and generates relative positions of the first light unit and the last light unit of the light bar along the edge of the display according to images captured by the image capturing unit during the scan process and positions of edges of the display.
- During a display process, colors of light emitted by the light units of the light bar along the edge of the display are determined by part of image data of the image.
- Another embodiment of the present invention discloses a method for operating a display system. The display system includes an electronic device, a display, and a light bar disposed along at least part of an edge of the display.
- The method includes, during a scan process, deriving positions and directions of edges of the display in space, turning on a plurality of light units of the light bar sequentially, the electronic device capturing an image of the display and the light bar whenever a light unit of the light bar is turned on, the electronic device identifying at least a first light unit and a last light unit of the light bar along the edge of the display according to images captured by the electronic device, the electronic device generating serial numbers of light units of the light bar along the edge of the display, and the electronic device generating relative positions of the first light unit and the last light unit of the light bar on the edge of the display.
- In addition, the method includes, during a display process, the first display displaying an image being at least part of a complete image, and the light units of the light bar along the edge of the display emitting light with colors determined by part of image data of the image.
- These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
-
FIG. 1 shows a display system according to one embodiment of the present invention. -
FIGS. 2 to 5 show some of the images captured by the image capturing unit during the scan process of the display system inFIG. 1 . -
FIG. 6 shows a display system according to another embodiment of the present invention. -
FIG. 7 shows a method for operating the display system inFIG. 1 according to one embodiment of the present invention. -
FIG. 1 shows adisplay system 100 according to one embodiment of the present invention. Thedisplay system 100 includes afirst display 110A, afirst light bar 120, and anelectronic device 130. - The
first light bar 120 includes a plurality oflight units 122A disposed along the edges offirst display 110A. For example, some of thelight units 122A are disposed along part of the first edge 110A1 of thefirst display 110A. Theelectronic device 130 includes animage capturing unit 132 and acontrol unit 134, and thecontrol unit 134 is coupled to theimage capturing unit 132. In some embodiments, thelight units 122A to 122D of thefirst light bar 120 can be light emitting diodes. Also, in some embodiments, theelectronic device 130 can be, for example but not limited to, a smart phone, a tablet, or a notebook. - During the display process of the
display system 100, thefirst display 110A can display a first image, and the colors of light emitted by thelight units 122A of thefirst light bar 120 can be determined by part of the image data of the first image. - For example, the image data presented by the
light units 122A of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A can be the image data received by the corresponding pixels on the first edge 110A1 of the first display 110, or the image data supposedly to be received by pixels next to the corresponding pixels on the first edge 110A1 of thefirst display 110A. That is, thelight bar 120 can be seen as an extension of thefirst display 110A for presenting images with thefirst display 110A, creating dynamic and refreshing visual effects. - To create the desired visual effects, the part of image data to be presented by the
light units 122A to 122D of thefirst light bar 120 can be determined during a scan process. For example, during the scan process, thelight units 122A of thefirst light bar 120 can be turned on sequentially. That is, thelight units 122A of thefirst light bar 120 are turned on one by one. Also, theimage capturing unit 132 can capture an image of thefirst display 110A and thefirst light bar 120 whenever alight unit 122A of thefirst light bar 120 is turned on - For example,
FIGS. 2 to 5 show some of the images captured by theimage capturing unit 132 during the scan process of thedisplay system 100. InFIG. 2 , the first light unit 122A11 of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A is turned on. InFIG. 3 , the second light unit 122A12 of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A is turned on. Similarly, the followinglight units 122A along the first edge 110A1 of thefirst display 110A are turned on sequentially, and inFIG. 4 , the last light unit 122A1X of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A is turned on. Next, inFIG. 5 , the first light unit 122A21 of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A is turned on. - In this case, the
control unit 134 can identify the first light unit 122A11 of thefirst light bar 120 long the first edge 110A1 of thefirst display 110A when the first light unit 122A11 of thefirst light bar 120 along the first edge 110A1 is turned on as shown inFIG. 2 . - Also, when the first light unit 122A21 of the
first light bar 120 along the second edge 110A2 of thefirst display 110A emits light as shown inFIG. 5 , thecontrol unit 134 would be aware that thelight units 122A along the first edge 110A1 of thefirst display 110A have all been turned on previously, and thus, thecontrol unit 134 can identify the last light unit 122A1X of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A accordingly. - In addition, the
control unit 134 can generate the serial numbers of thelight units 122A of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A during the scan process, and generate the relative positions of the first light unit 122A11 and the last light unit 122A1X of thefirst light bar 120 on the first edge 110A1 of thefirst display 110A according to the images captured by theimage capturing unit 132 during the scan process and positions of edges of thefirst display 110A. - For example, in
FIG. 1 , there are, for example but not limited to, fourlight units 122A along the first edge 110A1 of thefirst display 110A, therefore, as the first light unit 122A11 and the last light unit 122A1X are identified by thecontrol unit 134, thecontrol unit 134 can assign the serial number to the fourlight units 122A, such as No. 1 to No. 4. Consequently, the fourlight units 122A can be controlled specifically and independently by thecontrol unit 134. - In addition, according to the images captured by the
image capturing unit 132, the relative positions of the first initial light unit 122A11 and the last light unit 122A1X of thefirst light bar 120 on the first edge 110A1 of thefirst display 110A can be determined. For example, inFIG. 1 , if the corner 110AA of thefirst display 110A is taken as the initial terminal of the first edge 110A1 and the corner 110AB is taken as the ending terminal of the first edge 110A1, then thecontrol unit 134 can determine that the first light unit 122A11 is near the middle of the first edge 110A1 and relatively closer to corner 110AB of the first edge 110A1 according to the image as shown inFIG. 2 . In this case, the relative position of first initial light unit 122A11 along the first edge 110A1 of thefirst display 110A can be denoted as, for example, but not limited to, 0.6 or 60%. - Similarly, since the last light unit 122A1X is at the end terminal of the first edge 110A1 of the
first display 110A, the relative position of first initial light unit 122A1X on the first edge 110A1 of thefirst display 110A can be denoted as 1 or 100% accordingly. - Consequently, the part of image data of the first image to be presented by the
light units 122A of thefirst light bar 120 along the first edge 110A1 can be derived according to the relative positions of the first light unit 122A11 and the last light unit 122A1X on the first edge 110A1 of thefirst display 110A and the serial numbers of thelight units 122A of thefirst light bar 120 along the first edge 110A1. - For example, the
first light bar 120 can be coupled to a light bar controller (which is not depicted inFIG. 1 ) disposed in thefirst display 110A, and, with the relative positions of the first light unit 122A11 and the last light unit 122A1X on the first edge 110A1 of thefirst display 110A, the light bar controller can determine the related part of the first image to be presented by the first light unit 122A11 and the last light unit 122A1X, that is, the data image to be presented by the pixels corresponding to the first light unit 122A11 and the last light unit 122A1X. Also, with the serial numbers of thelight units 122A of thefirst light bar 120 along the first edge 110A1, the image data to be presented by thelight units 122A along the first edge 110A1 can all be determined by finding the corresponding pixels of thefirst display 110A according to the related part of the first image to be presented by the first light unit 122A11 and the last light unit 122A1X by, for example but not limited to, interpolation. - In some embodiments, the positions of edges of the
first display 110A and the disposing direction of thefirst display 110A can be determined in advance and can be known factors for the control unit 134 (e.g., the techniques taught in US patent Publication No. 20170337028) . Therefore, thecontrol unit 134 can identify the first edge 110A1 of thefirst display 110A, determine the relative positions of thelight units 122A on the first edge 110A1 according to the images captured by theimage capturing unit 132, and determine the image data to be presented by thelight units 122A along thefirst edge 110A of thefirst display 110A. - In
FIG. 1 , part of thefirst light bar 120 is disposed along the second edge 110A2 of thefirst display 110A connecting to the first edge 110A1 of thefirst display 110A. In this case, thecontrol unit 134 can also identify the first light unit 122A21 and the last light unit 122A2Y of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A according to the images captured by theimage capturing unit 132 during the scan process, for example,FIG. 5 . - The
control unit 134 can record the serial numbers of thelight units 122A of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A, and record the relative positions of the first light unit 122A21 and the last light unit 122A2Y on the second edge 110A2 of thefirst display 110A. - Consequently, the part of image data of the first image to be presented by the
light units 122A of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A can be derived accordingly. Similarly, the part of image data of the first image to be presented by thelight units 122A of thefirst light bar 120 along the third edge 110A3 of thefirst display 110A can also be derived during the scan process with the same approach. - In
FIG. 1 , thedisplay system 100 further includes asecond display 110B, athird display 110C, and afourth display 110D. Thedisplays 110A to 110D can be spliced together to form a video wall. That is, the images displayed by thedisplays 110A to 110D can be different parts of a complete image. In addition, thefirst light bar 120 can also be disposed along the edges of thedisplays 110B to 110D. For example, thefirst light bar 120 is disposed along part of the first edge 110B1 of thesecond display 110B. - In this case, the
light units 122B of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B will also be turned on sequentially and theimage capturing unit 132 will capture the images of them accordingly. Therefore, thecontrol unit 134 can also identify the first light unit 122B11 and the last light unit 122B1X of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B according to the images captured by theimage capturing unit 132 during the scan process and the positions of edges of thesecond display 110B determined in advance. - With similar approaches aforementioned, the
control unit 134 can record the serial numbers of thelight units 122B of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B, and record the relative positions of the first light unit 122B11 and the last light unit 122B1X on the first edge 110B1 of thesecond display 110B as shown inFIGS. 2 to 5 . Consequently, during the display process, thelight units 122B of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B can emit light according to the related part of image data of the second image displayed by thesecond display 110B. - With the
display system 100, thefirst light bar 120 can be disposed along the edges of the spliceddisplays light units 122A to 122D of thefirst light bar 120 on the edges of the spliceddisplays - However, in some embodiments, according to the application requirement, the
display system 100 may include more displays or fewer displays. For example, thedisplay system 100 may include ten displays or only one display. Furthermore, in some embodiments, the first light bar may not cover all the outer edges of the spliced displays, and may cover only parts of the outer edges of the spliced displays. However, the same scan process aforementioned can be applied to the display systems with different numbers of displays and with different shapes of the spliced displays. - In some embodiments, the
first light bar 120 can be coupled to the light bar controller (which is not depicted inFIG. 1 ) disposed in thefirst display 110A, and the light bar controller can control thefirst light bar 120 according to the demands from theelectronic device 130. For example, inFIG. 1 , theelectronic device 130 can further include awireless communications unit 136. Thewireless communications unit 136 can build wireless communications between theelectronic device 130 and thefirst display 110A. In this case, thecontrol unit 134 can demand the light bar controller in thefirst display 110A to activate the plurality oflight units 122A of thefirst light bar 120 to emit light sequentially during the scan process through the wireless communications. Also, the light bar controller can decide the color and the brightness to be presented by thefirst light bar 120 according to the image data of the complete image, and the positions and the serial numbers of the light units in thefirst light bar 120. In some embodiments, the light bar controller can be disposed in thedisplay 110A, however, in some other embodiments, the light bar controller can also be an external device disposed outside of thedisplay 110A. - In addition, in some embodiments, the
first light bar 120 may pass its control commands through thelight units 122A, that is, the command to be received by the lastlight unit 122A in thefirst light bar 120 is actually passed by everylight unit 122A in thefirst light bar 120. Therefore, the longer thefirst light bar 120 and the morelight units 122A in thefirst light bar 120, the longer it will take to control all thelight units 122A. In this case, if thefirst light bar 120 is disposed to surround many displays, then thelight units 122A may not be controlled to emit the light accordingly in time as the images displayed by the displays change. - Therefore, in some embodiments, the display system may include more light bars.
FIG. 6 shows adisplay system 200 according to another embodiment of the present invention. Thedisplay system 200 and thedisplay system 100 have similar structures and can be operated with similar principles. However, thedisplay system 200 includes afirst light bar 220A and a secondlight bar 220B. The secondlight bar 220B includes a plurality oflight units 222B disposed along the edges of thesecond display 110B. - During the scan process, the second
light bar 220B can active eachlight unit 222B of the secondlight bar 220B to emit light sequentially, and theimage capturing unit 232 would capture the image of the secondlight bar 220B and thesecond display 110B whenever alight unit 222B emits light. Consequently, thecontrol unit 234 would be able to identify thelight units 222B on each edge of thesecond display 110B according to the images captured by theimage capturing unit 232 and the positions of edges of thesecond display 110B. - For example, with the similar images shown in
FIGS. 2 to 5 , thecontrol unit 234 can identify the first light unit 222B11 and the last light unit 222B1X of the secondlight bar 220B along the first edge 110B1 of thesecond display 110B according to the images captured by theimage capturing unit 232 and the positions of edges of thesecond display 110B. Consequently, during the display process, thelight units 222B of the secondlight bar 220B along the first edge 110B1 of thesecond display 110B can emit light according to the part of image data of the second image. - In some embodiments, the
light bars 220A to 220D can be controlled by different light bar controllers disposed in thedisplays 110A to 110D. For example, thefirst light bar 220A may be controlled by a light bar controller disposed in thefirst display 110A, and the secondlight bar 220B maybe controlled by a light bar controller disposed in thesecond display 110B. Since thelight bars 220A to 220D can be controlled by different light bar controllers, the time required for transmitting commands to the light units in thelight bars 220A to 220D can be reduced. - Also, in some embodiments, the last light unit 222B1X can be identified when the first light unit 222B21 along the second edge 110B2 of the
second display 110B is turned on and captured by theimage capturing unit 232. However, since the secondlight bar 220B does not disposed along the fourth edge 110B4 of thesecond display 110B, thecontrol unit 234 may identify the last light unit 222B3Z of the secondlight bar 220B along the third edge 110B3 of thesecond display 110B when no more light unit emits light during the scan process. - In addition, by adjusting the capturing angle and the capturing distance, the
image capturing unit 232 can capture thedisplays 110A to 110B and thelight bars first light bar 220A along the first edge 110A1 of thefirst display 110A and the first light unit 222B11 of the secondlight bar 220B along the first edge 110B1 of thesecond display 110B can emit light simultaneously with different colors during the scan process, and thecontrol unit 234 can identify the first light unit 222A11 and the first light unit 222B11 according to the same image captured by theimage capturing unit 232. That is, the scan process for thefirst light bar 220A and the secondlight bar 220B can be performed in parallel, reducing the required processing time. - Similarly, in
FIG. 6 , thedisplay system 200 can further include a thirdlight bar 220C along the edges of thethird display 110C and a fourthlight bar 220D along the edge of thefourth display 110D. Also, the similar scan process can be applied to the thirdlight bar 220C and thefourth light bar 220D, and the scan processes for thelight bars 220A to 220D can be performed concurrently. - Consequently, with the
display system 200, thedifferent light bars 220A to 220D can be disposed along the edges of the spliceddisplays different light bars 220A to 220D on the edges of the spliceddisplays -
FIG. 7 shows a method 300 for operating thedisplay system 100 during the scan process according to one embodiment of the present invention. The method 300 includes steps S310 to S370, but is not limited to the order shown inFIG. 7 . - S310: derive the positions and directions of the edges of the
displays 110A to 110D in space; - S320: turn on the plurality of
light units 122A of thefirst light bar 120 sequentially; - S330: the
electronic device 130 captures an image of thefirst display 110A and thefirst light bar 120 whenever a light unit of thefirst light bar 120 is turned on; - S340: the
electronic device 130 identifies the first light unit 122A11 and the last light unit 122A1X of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A according to the images captured by theelectronic device 130; - S342: the
electronic device 130 identifies the first light unit 122A21 and the last light unit 122A2Y of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A according to images captured by theelectronic device 130; - S344: the
electronic device 130 identifies the first light unit 122B11 and the last light unit 122B1X of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B according to images captured by theelectronic device 130; - S350: the
electronic device 130 generates the serial numbers oflight units 122A of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A; - S352: the
electronic device 130 generates the serial numbers oflight units 122A of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A; - S354: the
electronic device 130 generates the serial numbers oflight units 122B of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B; - S360: the
electronic device 130 generates the relative positions of the first light unit 122A11 and the last light unit 122A1X of thefirst light bar 120 along the first edge 110A1 of thefirst display 110A; - S362: the
electronic device 130 generates the relative positions of the first light unit 122A21 and the last light unit 122A2Y of thefirst light bar 120 along the second edge 110A2 of thefirst display 110A; - S364: the
electronic device 130 generates the relative positions of the first light unit 122B11 and the last light unit 122B1X of thefirst light bar 120 along the first edge 110B1 of thesecond display 110B; - S370: derive the image data to be presented by the
light units 122A to 122D of thefirst light bar 120 according to the serial numbers of thelight units first light bar 120 along the edges of thedisplays 110A to 110D, and the relative positions of the first light units and the last light units of thefirst light bar 120 on the edges of thedisplays 110A to 110D. - With the method 300, the image data to be presented by the
light units 122A of thefirst light bar 120 can be determined during the scan process. Consequently, during the display process, thefirst display 110A and thesecond display 110B can display the first image and the second image respectively, thelight units 122A of thefirst light bar 120 along the edges of thefirst display 110A can emit light according to the corresponding part of image part of the first image, and thelight units 122B of thefirst light bar 120 along the edges of thesecond display 110B can emit light according to the corresponding part of image part of the second image. - Furthermore, in the some embodiments, the display system may include more light bars. For example in
FIG. 6 , thedisplay system 200 can include thelight bars 220A to 220D, each along the edges of thedisplays 110A to 110D. In this case, similar approaches shown inFIG. 7 can also be applied to perform the scan process. However, to further reduce the set up time, the first light unit 222A11 of thefirst light bar 220A and the first light unit 222B11 of the secondlight bar 220B can emit light simultaneously with different colors. Consequently, theelectronic device 230 can identify the first light unit 222A11 of thefirst light bar 220A along the first edge 110A1 of thefirst display 110A and the first light unit 222B11 of the secondlight bar 220B along the first edge 110B1 of thesecond display 110B according to the same image. - In summary, the display systems and the method for operating the display systems provided by the embodiments of the present invention can determine the relative positions of the light units of the light bars on the edges of the spliced displays during the scan process automatically. Therefore, the image data to be presented by the light units of the light bars during the display process can be determined accordingly, and the desired visual effects can be created. Furthermore, the complicate manual operations for setting up the display system can be saved, and the set up time can also be reduced.
- Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
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CN201810871571.0A CN109064910B (en) | 2018-08-02 | 2018-08-02 | Display system and method for operating display system |
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CN102842285B (en) * | 2012-09-18 | 2015-06-24 | 广东威创视讯科技股份有限公司 | Brightness control method, LED-lattice module and LED-lattice screen |
CN104361837A (en) * | 2014-11-20 | 2015-02-18 | 冠捷显示科技(中国)有限公司 | Tiled display screen and seamless display method thereof |
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