# US 12,190,843 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,190,843 B2 - Document ID: US12190843B2 - Status: Granted - Kind: B2 - Application number: 17/859,011 - Filed: 2022-07-07 - Published: 2023-01-12 - Granted: 2025-01-07 - Earliest claimed: 2021-07-08 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Tomohide Oohira; Yasuhiko Yamagishi - Web page: https://patentgrep.com/patent/US12190843B2 ## CPC - G09G 3/3688: {suitable for active matrices only} - G09G 3/3614: {Control of polarity reversal in general} - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G02F 1/133305: {Flexible substrates, e.g. plastics, organic film} - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G09G 2300/0426: Layout of electrodes and connections - G09G 2320/0209: Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display - 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) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract According to one embodiment, a display device comprises a display panel, first and second driver chips. The display panel includes first and second edge portions, a display area between the first and second edge portions in a first direction, first signal lines extending to the display area, and second signal lines extending to the display area. The first driver chip is connected to the first edge portion to supply video signals to the first signal lines. The second driver chip is connected to the second edge portion to supply video signals to the second signal lines. Number N of the first signal lines and number M of the second signal lines are alternately arranged in a second direction. ## Claims ### Claim 1 A display device comprising: a display panel including a first edge portion, a second edge portion, a display area located between the first edge portion and the second edge portion in a first direction, a plurality of first signal lines extending to the display area, and a plurality of second signal lines extending to the display area; a first driver chip connected to the first edge portion to supply video signals to the plurality of first signal lines; and a second driver chip connected to the second edge portion to supply video signals to the plurality of second signal lines, wherein number N of the first signal lines and number M of the second signal lines are alternately arranged in a second direction intersecting the first direction, the first driver chip supplies video signals having polarities alternately different one by one to the plurality of first signal lines arranged in the second direction, and the second driver chip supplies video signals having polarities alternately different one by one to the plurality of second signal lines arranged in the second direction. ### Claim 2 (depends on 1) The display device of claim 1, wherein each of the N and the Mis an even number. ### Claim 3 (depends on 2) The display device of claim 2, wherein each of the N and the Mis two. ### Claim 4 (depends on 1) The display device of claim 1, further comprising: a plurality of first driver chips including the first driver chip, which are arranged in the second direction; and a plurality of second driver chips including the second driver chip, which are arranged in the second direction. ### Claim 5 (depends on 4) The display device of claim 4, further comprising: a plurality of first flexible substrates connected to the first edge portion; and a plurality of second flexible substrates connected to the second edge portion, wherein the plurality of first driver chips are mounted on the plurality of first flexible substrates, respectively, and the plurality of second driver chips are mounted on the plurality of second flexible substrates, respectively. ### Claim 6 (depends on 5) The display device of claim 5, wherein the plurality of first flexible substrates are spaced apart and arranged in the second direction, and the plurality of second flexible substrates are spaced apart and arranged in the second direction. ### Claim 7 (depends on 6) The display device of claim 6, wherein the plurality of first flexible substrates are connected to a first rigid substrate elongated in the second direction, and the plurality of second flexible substrates are connected to a second rigid substrate elongated in the second direction. ### Claim 8 (depends on 4) The display device of claim 4, wherein the plurality of first driver chips are mounted on the first edge portion, and the plurality of second driver chips are mounted on the second edge portion. ### Claim 9 (depends on 1) The display device of claim 1, wherein the display area includes a plurality of pixels, and each of the plurality of pixels includes number, different from the N and the M, of sub-pixels. ### Claim 10 (depends on 9) The display device of claim 9, wherein at least one of the sub-pixels constituting one pixel is connected to one of the plurality of first signal lines, and rest of the sub-pixels is connected to one of the plurality of second signal lines. ### Claim 11 (depends on 1) The display device of claim 1, wherein at least one of the plurality of first signal lines includes a first inclined portion extending in a direction intersecting the first direction at the first edge portion, and at least one of the plurality of second signal lines includes a second inclined portion extending in a direction intersecting the first direction at the second edge portion. ### Claim 12 (depends on 1) The display device of claim 1, further comprising: a first substrate; and a second substrate overlapping the first substrate, wherein a width of the second substrate in the first direction is smaller than a width of the first substrate in the first direction, and the first edge portion and the second edge portion correspond to areas of a surface of the first substrate, the areas do not overlap the second substrate.