# US 12,217,643 B2 · Display device and method of driving the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,643 B2 - Document ID: US12217643B2 - Status: Granted - Kind: B2 - Application number: 18/075,733 - Filed: 2022-12-06 - Published: 2023-07-27 - Granted: 2025-02-04 - Earliest claimed: 2022-01-21 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Inbok Song - Web page: https://patentgrep.com/patent/US12217643B2 ## CPC - 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 3/3275: Details of drivers for data electrodes - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G09G 2300/0439: Pixel structures - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2310/0232: Special driving of display border areas - G09G 2310/08: Details of timing specific for flat panels, other than clock recovery - G09G 2330/021: Power management, e.g. power saving - G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas - G09G 2360/12: Frame memory handling - 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 device includes: a display panel including a first region having a first pixel structure and a second region having a second pixel structure different from the first pixel structure, and a display panel driver configured to render first region data corresponding to the first region among input image data to generate rendering data in an inactive period of a data enable signal, and to generate data voltages applied to the first region based on the rendering data in an active period of the data enable signal. ## Claims ### Claim 1 A display device comprising: a display panel including a first region having a first pixel structure and a second region having a second pixel structure different from the first pixel structure; and a display panel driver configured to render first region data corresponding to the first region among input image data to generate rendering data in an inactive period of a data enable signal, and to generate data voltages applied to the first region based on the rendering data in an active period of the data enable signal. ### Claim 2 (depends on 1) The display device of claim 1, wherein an optical module is disposed under the first region. ### Claim 3 (depends on 1) The display device of claim 1, wherein a total number of pixels per unit area of the first pixel structure is smaller than a total number of pixels per unit area of the second pixel structure. ### Claim 4 (depends on 1) The display device of claim 1, wherein the display panel driver is configured to render the first region data in a back porch period of the inactive period. ### Claim 5 (depends on 1) The display device of claim 1, wherein the display panel driver includes: a frame memory device configured to store the input image data; a renderer configured to render the first region data in the inactive period to generate the rendering data; and a rendering memory device configured to store the rendering data. ### Claim 6 (depends on 5) The display device of claim 5, wherein the renderer includes: a rendering operator configured to render the first region data; and a selector configured to selectively output the rendering data or the input image data. ### Claim 7 (depends on 5) The display device of claim 5, wherein the display panel driver further includes: a sub-memory device configured to receive the input image data and store the first region data of the input image data. ### Claim 8 (depends on 5) The display device of claim 5, wherein the frame memory device is configured to output the first region data to the renderer. ### Claim 9 (depends on 5) The display device of claim 5, wherein the frame memory device is configured to output the first region data to the rendering memory device, and wherein the rendering memory device is configured to output the first region data to the renderer. ### Claim 10 A method of driving a display device comprising: storing input image data in a frame memory device; rendering first region data corresponding to an optical module region under which an optical module is disposed among the input image data to generate rendering data in an inactive period of a data enable signal; storing the rendering data in a rendering memory device; and selectively outputting the rendering data or the input image data in active period of the data enable signal. ### Claim 11 (depends on 10) The method of claim 10, wherein a pixel structure of the optical module region is different from a pixel structure of a normal region under which the optical module is not disposed. ### Claim 12 (depends on 10) The method of claim 10, wherein rendering the first region data is performed in a back porch period of the inactive period.