# US 10,769,980 B2 · Tiled display and optical compensation method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,769,980 B2 - Document ID: US10769980B2 - Status: Granted - Kind: B2 - Application number: 16/186,950 - Filed: 2018-11-12 - Published: 2019-07-04 - Granted: 2020-09-08 - Earliest claimed: 2017-12-28 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Daehyun Kim; Junyoung Huh - Web page: https://patentgrep.com/patent/US10769980B2 ## CPC - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/20: 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} - G09G 3/3225: using an active matrix - G09G 3/3266: Details of drivers for scan electrodes - G09G 3/3275: Details of drivers for data electrodes - G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor - G09G 2310/027: Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters - G09G 2310/08: Details of timing specific for flat panels, other than clock recovery - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0276: for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction - G09G 2320/0295: by monitoring each display pixel - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2320/0693: Calibration of display systems - 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 Disclosed are a tiled display and an optical compensation method thereof. The tiled display includes a color coordinate compensation circuit configured to convert color coordinates of pure color data to be displayed in display panels into target color coordinates having a color gamut smaller than a color gamut defined in color coordinates of each of display panels, and convert the pure color data into a data combination of two or more different colors. ## Claims ### Claim 1 A tiled display, comprising: two or more display panels; and a color coordinate compensation circuit configured to: convert color coordinates of pure color data to be displayed in the two or more display panels into target color coordinates having a color gamut smaller than a color gamut defined in color coordinates of each of the two or more display panels, and convert the pure color data into a combination of two or more different color data, wherein the color coordinate compensation circuit is configured to convert the pure color data into a combination of two or more pure color data or a combination of one or more pure color data and a white data, wherein the color coordinate compensation circuit is configured to convert a first pure color data into any one of a combination of a first pure color and a second pure color; a combination of the first pure color and a third pure color; a combination of the first pure color and a white: a combination of the first pure color, the second pure color, and the third pure color; a combination of the first pure color, the second pure color, and the white; and a combination of the first pure color, the third pure color, and the white, and wherein when luminance of the first pure color is 100%, a luminance ratio of the first pure color in the color combinations exceeds 50%. ### Claim 2 (depends on 1) The tiled display of claim 1, wherein the first pure color is any one of red, green, and blue, the second pure color is any one of the remaining two colors, excluding the first pure color, among the red, green, and blue, and the third pure color is one remaining color, excluding the first pure color and the second pure color, among the red, green, and blue. ### Claim 3 (depends on 1) The tiled display of claim 1, further comprising: a plurality of display panel drivers configured to drive the display panels, respectively, wherein the color coordinate compensation circuit is connected to one of the display panel drivers or commonly connected to the plurality of display panel drivers. ### Claim 4 (depends on 1) The tiled display of claim 1, wherein the pure color data is data to be displayed in a partial region of the two or more display panels. ### Claim 5 (depends on 4) The tiled display of claim 4, wherein the partial region includes an outer pixel region of the two or more display panels. ### Claim 6 An optical compensation method of a tiled display comprising: converting color coordinates of pure color data to be displayed in two or more display panels into target color coordinates having a color gamut smaller than a color gamut defined in color coordinates of each of the display panels; and converting the pure color data into a combination of two or more different color data, wherein the pure color data is converted into a combination of two or more pure color data or a combination of one or more pure color data and a white data, wherein a first pure color data is converted into any one of: a combination of a first pure color and a second pure color, a combination of the first pure color and a third pure color; a combination of the first pure color and a white; a combination of the first pure color, the second pure color, and the third pure color; a combination of the first pure color, the second pure color, and the white, and a combination of the first pure color, the third pure color, and the white, and wherein when luminance of the first pure color is 100%, a luminance ratio of the first pure color in the color combination exceeds 50%. ### Claim 7 (depends on 6) The optical compensation method of claim 6, wherein the pure color data is data to be displayed in a partial region of the two or more display panels. ### Claim 8 (depends on 7) The optical compensation method of claim 7, wherein the partial region includes an outer pixel region of the two or more display panels.