# US 11,308,596 B2 · Display system for sensing defect on large-size display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,308,596 B2 - Document ID: US11308596B2 - Status: Granted - Kind: B2 - Application number: 16/774,560 - Filed: 2020-01-28 - Published: 2020-08-13 - Granted: 2022-04-19 - Earliest claimed: 2019-02-12 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Changgun Ko; Anupam Khandelwal; Hyunsuk Min; Jihun Yoon; Chaejin Lim - Web page: https://patentgrep.com/patent/US11308596B2 ## CPC - G06T 7/0002: {Inspection of images, e.g. flaw detection} - G06T 7/0008: {checking presence/absence} - G06F 3/1446: {display composed of modules, e.g. video walls} - G06T 2207/20084: Artificial neural networks [ANN] - G06T 2207/30121: CRT, LCD or plasma display - G09G 3/006: {Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309)} - G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A display system includes a display device including a plurality of displays to output first content received from a first server, a second server to receive the first content from the first server and to store a plurality of error patterns which is able to occur in the first content, and a photographing device to transmit second content obtained by photographing the display device to the second server. The second server displays whether a defect is present on the display device, by comparing the second content with the plurality of error patterns, when the second content is received from the photographing device. ## Claims ### Claim 1 A display system comprising: a display device including a plurality of displays and configured to display first content received from a first server; a second server configured to receive the first content from the first server and to store a plurality of error patterns of the first content; a photographing device configured to transmit second content obtained by photographing the display device to the second server, and wherein the second server is further configured to display whether a defect is present on the display device, by comparing the second content with the stored plurality of error patterns, when the second content is received from the photographing device, wherein the first content includes first content having an error pattern and first content having no error pattern; and the second server is further configured to process, through a specified synthesis manner, the first content having the error pattern and the first content having no error pattern, to generate the plurality of error patterns. ### Claim 2 (depends on 1) The display system of claim 1, wherein the plurality of error patterns include error patterns provided in a specified number. ### Claim 3 (depends on 1) The display system of claim 1, wherein the second server generates the plurality of error patterns using a convolution neural network (CNN). ### Claim 4 (depends on 1) The display system of claim 1, wherein images displayed from the display device forms the first content. ### Claim 5 (depends on 1) The display system of claim 1, wherein the second server is configured to display whether the defect is present on the display device, through a second server display. ### Claim 6 (depends on 5) The display system of claim 5, wherein the second server is configured to display whether the defect is present on the display device, through the second server display, such that displays, which have defects, of the plurality of displays are distinguished from displays, of the plurality of displays, having no defect. ### Claim 7 (depends on 1) The display system of claim 1, wherein the number of the plurality of displays is at least 18. ### Claim 8 (depends on 1) The display system of claim 1, wherein the plurality of displays include a plurality of pixels, and wherein each of the plurality of pixels includes a plurality of sub-pixels. ### Claim 9 (depends on 1) The display system of claim 1, wherein each of the plurality of error patterns includes information on a defect on at least one of the plurality of displays. ### Claim 10 A server comprising: a display; a communication circuit configured to receive first content from an external server and to receive second content from a photographing device; a processor configured to generate a plurality of error patterns of the first content; and a memory configured to store the plurality of error patterns, wherein the processor is further configured to: determine whether a defect is present on a display device, by comparing the received second content, which is obtained by the photographing device photographing the display device, with the stored plurality of error patterns; and control the display to display a result of the determination, wherein the first content includes first content having an error pattern and first content having no error pattern; and wherein the processor is further configured to process, through a specified synthesis manner, the first content having the error pattern and the first content having no error pattern to generate the plurality of error patterns. ### Claim 11 (depends on 10) The server of claim 10, wherein the plurality of error patterns include error patterns provided in a specified number. ### Claim 12 (depends on 10) The server of claim 10, wherein the processor generates the plurality of error patterns using a convolution neural network (CNN). ### Claim 13 (depends on 10) The server of claim 10, wherein the display device includes a plurality of displays, and the processor is configured to control the display to display whether the defect is present on the external display device, such that displays, which have defects, of the plurality of displays are distinguished from displays, of the plurality of displays, having no defect. ### Claim 14 (depends on 10) The server of claim 10, wherein each of the plurality of error patterns includes information on a defect on at least one of a plurality of displays included in the external display device. ### Claim 15 A method for detecting a defect on a display device, the method comprising: receiving first content from a server and receiving second content from a photographing device, wherein the first content includes first content having an error pattern and first content having no error pattern; processing, through a specified synthesis manner, the first content having the error pattern and the first content having no error pattern to generate a plurality of error patterns of the first content; determining whether the defect is present on the display device by comparing the received second content, which is obtained by the photographing device photographing the display device, with the generated plurality of error patterns; and displaying a result of the determination. ### Claim 16 (depends on 15) The method of claim 15, wherein the plurality of error patterns includes error patterns provided in a specified number.