# US 12,217,720 B2 · Display device and driving method for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,720 B2 - Document ID: US12217720B2 - Status: Granted - Kind: B2 - Application number: 17/942,199 - Filed: 2022-09-12 - Published: 2023-06-29 - Granted: 2025-02-04 - Earliest claimed: 2021-12-16 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Donggun Lee; SeungTaek Oh - Web page: https://patentgrep.com/patent/US12217720B2 ## CPC - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 5/003: {Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092)} - G06T 7/70: Determining position or orientation of objects or cameras (camera calibration G06T7/80) - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/028: by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction - G09G 2320/068: for control of viewing angle adjustment - G09G 2320/0686: with two or more screen areas displaying information with different brightness or colours - G09G 2360/144: the light being ambient light - 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) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract A display device includes a display panel including a display area in which an optical area and a normal area are disposed, and a non-display area, a first optical electronic device disposed to overlap the optical area and generating user information, and a display controller configured to acquire information on a viewing angle at which images on the display panel can be acceptably viewed based on the user information, and adjust a ratio between red, green, and blue colors in an image displayed in the optical area among the images displayed in the display area based on the viewing angle information. ## Claims ### Claim 1 A display device comprising: a display panel comprising a display area in which an optical area and a normal area are disposed, and a non-display area; a first optical electronic device disposed to overlap with the optical area and configured to generate user information; and a display controller configured to acquire viewing angle information on a viewing angle at which images on the display panel are viewed based on the user information generated by the first optical electronic device, and adjust a ratio between red, green, and blue colors in an image displayed in the optical area among the images displayed in the display area based on the acquired viewing angle information without affecting a ratio between red, green, and blue colors of an image displayed in the normal area, wherein the optical area is configured not to include a cathode electrode. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the display controller comprising: a first computing circuit configured to acquire a modified image signal by applying an offset and a gain corresponding to the viewing angle information to an image signal corresponding to the image; a lookup table comprising a digital data signal mapped to the modified image signal; and a conversion circuit configured to receive the modified image signal and convert the modified image signal into the digital data signal of the lookup table. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the display controller comprising: a memory storing one or more algorithms; and a second computing circuit configured to predict a location of a user using the user information generated by the first optical electronic device and the one or more algorithms, and acquire the viewing angle information based on the predicted location of the user. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the display controller comprising: a plurality of lookup tables comprising image signals and digital data signals, which are respectively mapped to each other; and a selection circuit configured to select one of the plurality of lookup tables based on the viewing angle information. ### Claim 5 (depends on 4) The display device according to claim 4, wherein the plurality of lookup tables comprises at least a lookup table used at a viewing angle of 0 degree and a lookup table used at a viewing angle of 45 degrees. ### Claim 6 (depends on 1) The display device according to claim 1, wherein the display controller comprising: a memory storing one or more algorithms; a computing circuit configured to predict a location of a user using the user information generated by the first optical electronic device and the one or more algorithms, and acquire predicted viewing angle information based on the predicted location of the user; a plurality of lookup tables comprising image signals and digital data signals, which are respectively mapped to each other; and a selection circuit configured to select one of the plurality of lookup tables based on the predicted viewing angle information acquired by the computing circuit. ### Claim 7 (depends on 6) The display device according to claim 6, wherein the computing circuit is configured to acquire, based on predicted first viewing angle information acquired at a first time using the one or more algorithms and predicted second viewing angle information acquired at a second time using the one or more algorithms, predicted third viewing angle information at a third time between the first time and the second time obtained by averaging the predicted first viewing angle information and the predicted second viewing angle information. ### Claim 8 (depends on 1) The display device according to claim 1, wherein the display area further comprises a second optical area; and wherein the display controller is configured to further adjust a ratio between red, green, and blue colors in an image displayed in the second optical area based on the acquired viewing angle information. ### Claim 9 (depends on 8) The display device according to claim 8, further comprising a second optical electronic device disposed to overlap the second optical area, wherein the second optical electronic device is at least one of a camera, a proximity sensor, an illuminance sensor and an infrared sensor. ### Claim 10 (depends on 8) The display device according to claim 8, wherein the second optical area has a same optical characteristic as the optical area. ### Claim 11 (depends on 1) The display device according to claim 1, wherein the optical area comprises an area in which a number of pixels per unit area is less than a number of pixels per unit area in the normal area. ### Claim 12 (depends on 1) The display device according to claim 1, wherein the display panel comprises at least one first source-drain electrode pattern disposed over a substrate, and a passivation layer disposed over the substrate and covering the at least one first source-drain electrode pattern, wherein the passivation layer passes through at least one insulating layer on the substrate, and extends to extend to an upper portion of the substrate located in the optical area. ### Claim 13 A display device comprising: a display panel comprising a display area in which an optical area and a normal area are disposed, and a non-display area; a first optical electronic device disposed to overlap with the optical area and configured to generate user information; and a display controller configured to acquire viewing angle information on a viewing angle at which images on the display panel are viewed based on the user information generated by the first optical electronic device, and adjust a ratio between red, green, and blue colors in an image displayed in the optical area among the images displayed in the display area based on the acquired viewing angle information without affecting a ratio between red, green, and blue colors of an image displayed in the normal area, wherein the first optical electronic device has a driving frequency that is smaller than a driving frequency of the display device, and wherein the first optical electronic device generates the user information at discontinuous frames of the display device. ### Claim 14 (depends on 13) The display device according to claim 13, wherein predicted viewing angle information at a frame between the discontinuous frames is obtained by averaging predicted viewing angle information at the discontinuous frames adjacent to the frame. ### Claim 15 (depends on 1) The display device according to claim 1, wherein the user information is a still image or a video image obtained by capturing a user. ### Claim 16 A method of driving a display device comprising a display panel comprising a display area comprising an optical area and a normal area, and a non-display area, the method comprising: generating user information using image information supplied by a first optical electronic device disposed to overlap with the optical area; generating viewing angle information on a viewing angle at which images on the display panel are viewed based on the user information; and while displaying the images on the display panel, adjusting a ratio between red, green, and blue colors in an image displayed in the optical area by adjusting luminance of pixels present in the optical area of the display panel based on the viewing angle information without affecting a ratio between red, green, and blue colors of an image displayed in the normal area, wherein the generating of the viewing angle information comprises predicting a location of a user using the user information and one or more algorithms, and generating predicted viewing angle information based on the predicted location of the user. ### Claim 17 (depends on 16) The method according to claim 16, wherein the adjusting of the ratio between the red, green, and blue colors in the image displayed in the optical area is performed by acquiring a modified image signal by applying an offset and a gain corresponding to the viewing angle information to an image signal corresponding to the image, and mapping the modified image signal to a corresponding digital data signal. ### Claim 18 (depends on 16) The method according to claim 16, wherein the adjusting of the ratio between the red, green, and blue colors in the image displayed in the optical area comprises selecting one of a plurality of lookup tables configured to store digital data signals based on the viewing angle information. ### Claim 19 (depends on 16) The method according to claim 16, wherein the generating of the predicted viewing angle information is performed, based on predicted first viewing angle information acquired at a first time using the one or more algorithms and predicted second viewing angle information acquired at a second time using the one or more algorithms, by acquiring predicted third viewing angle information at a third time between the first time and the second time obtained by averaging the predicted first viewing angle information and the predicted second viewing angle information. ### Claim 20 (depends on 16) The method according to claim 16, wherein the optical area comprises an area in which a size of a pixel is smaller than that of a pixel in the normal area.