# US 12,118,949 B2 · Display panel, display device, and display driving method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,118,949 B2 - Document ID: US12118949B2 - Status: Granted - Kind: B2 - Application number: 17/973,288 - Filed: 2022-10-25 - Published: 2023-06-29 - Granted: 2024-10-15 - Earliest claimed: 2021-12-28 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Daeyoung Seo; Insu Hwang; Hyunsuk Lee - Web page: https://patentgrep.com/patent/US12118949B2 ## CPC - G09G 3/3291: in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements - 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 3/3225: using an active matrix - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing - G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor - G09G 2310/0259: with use of an analog or digital ramp generator in the column driver or in the pixel circuit - 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 2320/0285: using tables for spatial correction of display data - G09G 2320/029: by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel - G09G 2320/0295: by monitoring each display pixel - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2330/021: Power management, e.g. power saving - 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 Embodiments of the disclosure relate to a display panel, a display device, and a display driving method. Specifically, there may be provided a display panel including a plurality of pixels arranged in a matrix form, each of the plurality of pixels including N subpixels arranged in a first direction and having different colors, wherein N is 3 or 4 and a plurality of sensing lines disposed in a second direction between the plurality of pixels and configured to sense characteristic values for a plurality of subpixels electrically connected thereto, wherein the N subpixels are disposed so that subpixels of a same color are symmetrical with respect to the sensing line. ## Claims ### Claim 1 A display device, comprising: a display panel comprising a plurality of pixels arranged in a matrix form, each of the plurality of pixels including N subpixels arranged in a first direction and having different colors, wherein N is 3 or 4, and a plurality of sensing lines disposed in a second direction between the plurality of pixels and configured to sense characteristic values for a plurality of subpixels electrically connected thereto; and a data driving circuit configured to supply a data voltage to the display panel and sense the characteristic values for the plurality of pixels through the plurality of sensing lines, wherein the N subpixels are disposed so that subpixels of a same color are symmetrical with respect to a corresponding sensing line among the plurality of sensing lines while the subpixels of the same color are connected to the corresponding sensing line together, and wherein the data driving circuit is configured to initialize the sensing line to a reference voltage, and track the sensing line to sense a characteristic value charged to the sensing line after a predetermined time. ### Claim 2 (depends on 1) The display device of claim 1, wherein the plurality of pixels are disposed so that the subpixels of the same color are positioned in the second direction. ### Claim 3 (depends on 1) The display device of claim 1, wherein the plurality of pixels are disposed so that the subpixels of the same color are positioned at every second position in the second direction. ### Claim 4 (depends on 1) The display device of claim 1, wherein the plurality of pixels are disposed so that the subpixels of the same color are positioned at every Nth position in the second direction. ### Claim 5 (depends on 1) The display device of claim 1, wherein the plurality of sensing lines are a reference voltage line to which a display reference voltage is applied during a display driving period or a sensing reference voltage is applied during a characteristic value sensing period. ### Claim 6 (depends on 1) The display device of claim 1, wherein the plurality of sensing lines are configured to simultaneously sense characteristic values in the subpixels of the same color. ### Claim 7 (depends on 6) The display device of claim 6, wherein a characteristic value of a corresponding subpixel is compensated using an average value of the characteristic values simultaneously sensed in the subpixels of the same color. ### Claim 8 (depends on 1) The display device of claim 1, wherein a color mixing area is formed in an area where subpixels of different colors are adjacent to each other, and wherein the color mixing area is omitted in an area where the subpixels of the same color are adjacent to each other. ### Claim 9 (depends on 8) The display device of claim 8, wherein the area where the subpixels of the same color are adjacent to each other is an area where the sensing lines are disposed. ### Claim 10 A display device, comprising: a display panel including a plurality of pixels arranged in a matrix form, each of the plurality of pixels including N subpixels arranged in a first direction and having different colors, wherein N is 3 or 4 and a plurality of sensing lines disposed in a second direction between the plurality of pixels and configured to sense characteristic values for a plurality of subpixels electrically connected thereto wherein the N subpixels are disposed so that subpixels of a same color are symmetrical with respect to the sensing line; a data driving circuit configured to supply a data voltage to the display panel and sense the characteristic values for the plurality of subpixels through the plurality of sensing lines; and a timing controller configured to control the data driving circuit and apply compensation image data to a corresponding subpixel using the characteristic values sensed by the data driving circuit, wherein the data driving circuit is configured to: initialize the sensing line to a reference voltage; and track the sensing line to sense a characteristic value charged to the sensing line after a predetermined time. ### Claim 11 (depends on 10) The display device of claim 10, wherein the plurality of sensing lines are configured to simultaneously sense characteristic values in the subpixels of the same color. ### Claim 12 (depends on 11) The display device of claim 11, wherein the timing controller is configured to generate the compensation image data to be supplied to the corresponding subpixel using an average value of characteristic values simultaneously sensed in the subpixels of the same color. ### Claim 13 (depends on 10) The display device of claim 10, wherein a color mixing area is formed in an area where subpixels of different colors are adjacent to each other, and wherein the color mixing area is omitted in an area where the subpixels of the same color are adjacent to each other. ### Claim 14 A method for driving a display device including a plurality of pixels arranged in a matrix form, the method comprising: disposing subpixels of a same color among a plurality of subpixels included in the plurality of pixels to be symmetrical with respect to a sensing line disposed between the plurality of pixels; simultaneously sensing characteristic values for the subpixels of the same color to which the sensing line is connected; averaging the characteristic values for the subpixels of the same color; and compensating for a characteristic value for a subpixel of a corresponding color using the average value of the characteristic values, wherein the sensing includes: initializing the sensing line to a reference voltage; and tracking the sensing line to sense a characteristic value charged to the sensing line after a predetermined time. ### Claim 15 (depends on 14) The method of claim 14, wherein the compensating includes generating and supplying compensation image data to be supplied to a corresponding subpixel using the average value.