# US 10,311,776 B2 · Display device and method of compensating for color deflection thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,311,776 B2 - Document ID: US10311776B2 - Status: Granted - Kind: B2 - Application number: 15/233,833 - Filed: 2016-08-10 - Published: 2017-06-15 - Granted: 2019-06-04 - Earliest claimed: 2015-12-11 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hye Sang Park - Web page: https://patentgrep.com/patent/US10311776B2 ## CPC - G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)} - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED] - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 5/02: characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0285: using tables for spatial correction of display data - G09G 2320/043: Preventing or counteracting the effects of ageing - G09G 2320/0693: Calibration of display systems - G09G 2360/145: the light originating from the display screen - 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 method of compensating for color deflection of a display device includes dividing a display region of a display panel into a plurality of partial regions, displaying a reference image in the display region, measuring optical characteristics of the partial regions based on the reference image, calculating a region compensation factor by the partial regions based on the optical characteristics, and storing the region compensation factor in a storage device. ## Claims ### Claim 1 A method of compensating for color deflection of a display device, the method comprising: dividing a display region of a display panel into a plurality of partial regions; displaying a reference image in the display region; measuring optical characteristics of the partial regions based on the reference image; calculating a region compensation factor by the partial regions based on the optical characteristics; and storing the region compensation factor in a storage device of the display device, wherein the display device comprises: the display panel; and an image data compensator to load the region compensation factor, to calculate a pixel compensation factor by interpolating the region compensation factor according to a resolution of the display panel, to calculate a compensation rate regarding each grayscale of pixel data, and to compensate for a grayscale of the pixel data based on the pixel compensation factor and the compensation rate regarding each grayscale. ### Claim 2 (depends on 1) The method of claim 1, wherein the displaying of the reference image comprises displaying a red image, a green image, or a blue image. ### Claim 3 (depends on 2) The method of claim 2, wherein the region compensation factor comprises: a red region compensation factor for compensating a red color; a green region compensation factor for compensating a green color; and a blue region compensation factor for compensating a blue color. ### Claim 4 (depends on 1) The method of claim 1, wherein the measuring of the optical characteristics comprises capturing the reference image using a camera. ### Claim 5 (depends on 4) The method of claim 4, wherein a resolution of the camera is lower than a resolution of the display panel. ### Claim 6 (depends on 1) The method of claim 1, wherein the measuring of the optical characteristics comprises capturing the reference image using a color sensor array. ### Claim 7 (depends on 1) The method of claim 1, wherein each of the partial regions comprises a plurality of pixels, and wherein the optical characteristics comprise an average brightness displayed in each of the partial regions. ### Claim 8 (depends on 7) The method of claim 7, wherein the calculating of the region compensation factor comprises calculating the region compensation factor corresponding to the partial regions based on the average brightness measured in the partial regions. ### Claim 9 (depends on 1) The method of claim 1, wherein the storing of the region compensation factor comprises storing the region compensation factor in a register within the display device. ### Claim 10 A method of compensating for color deflection of a display device, the method comprising: loading a region compensation factor corresponding to a plurality of partial regions of a display panel; processing the loaded region compensation factor to calculate a pixel compensation factor corresponding to each pixel of the display panel by interpolating the region compensation factor according to a resolution of the display panel; receiving image data comprising pixel data; calculating a compensation rate regarding each grayscale of the pixel data; and compensating for the grayscale of each pixel data based on the pixel compensation factor and the compensation rate. ### Claim 11 (depends on 10) The method of claim 10, further comprising displaying the image data based on the compensated grayscale of each pixel data. ### Claim 12 (depends on 10) The method of claim 10, wherein the loading of the region compensation factor comprises loading the region compensation factor from an MTP register of the display device. ### Claim 13 A display device comprising: a display panel comprising a plurality of partial regions; and an image data compensator for compensating for a grayscale of a plurality of pixel data of input image data based on a region compensation factor corresponding to the partial regions, and for outputting the compensated image data to the display panel, wherein the image data compensator comprises: a compensation factor storage device for storing the region compensation factor; a compensation factor converter for loading the region compensation factor, and for interpolating the region compensation factor according to a resolution of the display panel to calculate a pixel compensation factor; a grayscale compensation rate determiner configured to calculate a compensation rate regarding each grayscale of pixel data; and a data converter for compensating for a grayscale of the pixel data based on the pixel compensation factor and the compensation rate regarding each grayscale. ### Claim 14 (depends on 13) The display device of claim 13, wherein the compensation factor storage device comprises an MTP register.