# US 10,372,251 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 10,372,251 B2 - Document ID: US10372251B2 - Status: Granted - Kind: B2 - Application number: 16/270,652 - Filed: 2019-02-08 - Published: 2019-06-06 - Granted: 2019-08-06 - Earliest claimed: 2016-02-08 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Hiroyuki Abe; Takayuki Suzuki - Web page: https://patentgrep.com/patent/US10372251B2 ## CPC - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/044: by capacitive means - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - 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} - G02F 1/13338: {Input devices, e.g. touch panels} - G09G 2300/0426: Layout of electrodes and connections - H10K 59/40: OLEDs integrated with touch screens - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract To enable size reduction of a display device having a touch sensor function in which a display area has a non-rectangular shape. In a display area, video lines and common electrodes extend in the first direction, and scan lines extend in the second direction. A video signal transmission circuit and a common driver are arranged along a first edge of the display area, with which the one ends of the video lines are aligned. A scan line driver is arranged along a second edge of the display area, with which the ends of the scan lines and the common electrodes are aligned. The display area has a shape including an overlapping part between the first edge and the second edge. In a frame area adjacent to the overlapping part, the scan line driver is arranged more outward than the video signal transmission circuit and switch circuits. ## Claims ### Claim 1 A display device having a touch sensor function in addition to a video display function, comprising: signal lines formed in a display area of a substrate, including a plurality of video lines extending in a first direction and a plurality of scan lines extending in a second direction intersecting the first direction; a plurality of common electrodes formed in the display area so as to extend in the first direction, for being used for video display and touch detection; a plurality of video signal transmission lines arranged along a first edge among edges of a signal line laying area where the video lines and the scan lines are arranged on the substrate; a plurality of scan circuits arranged on the substrate along a second edge among the edges of the signal line laying area, for applying a scan signal to the scan line; and a common electrode signal transmission line arranged on the substrate along the first edge among the edges of the signal line laying area, for applying a reference potential signal or a touch detection signal to the common electrode, wherein the signal line laying area has a shape including a first overlapping edge where the first edge overlaps the second edge, and in a part of a frame area positioned outside the signal line laying area on the substrate, the video signal transmission line and the common electrode signal transmission line are disposed between the signal line laying area and the scan circuit. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the common electrode signal transmission line includes a first drive signal transmission line to which the touch detection signal is supplied, and a second drive signal transmission line to which the reference potential signal is supplied, the first edge has a common drive circuit, the common drive circuit includes a plurality of switch circuits provided each corresponding to each of the plurality of common electrodes and aligned along the first edge so as to correspond to arrangement of the plurality of common electrodes in the second direction, for switching connection between the each common electrode and the first or second drive signal transmission line, a switch control circuit arranged in the frame area in a non-overlapping part of the first edge excluding the first overlapping edge, for controlling switching by the switch circuit, and a switch control line extending from the switch control circuit to the each switch circuit along the first edge. ### Claim 3 (depends on 1) The display device according to claim 1, wherein the common electrode signal transmission line includes a first drive signal transmission line to which the touch detection signal is supplied, and a second drive signal transmission line to which the reference potential signal is supplied, the first edge has a common drive circuit, the common drive circuit includes a plurality of switch circuits provided each corresponding to each of the plurality of common electrodes and arranged in the frame area in a non-overlapping part of the first edge, among the edges of the signal line laying area, excluding the first overlapping edge, for switching connection between the each common electrode and the first drive signal transmission line or the second drive signal transmission line, a switch control circuit arranged in the frame area in the non-overlapping part, for controlling switching by the switch circuit, and a drive signal distribution line extending from the switch circuit to the each common electrode along the first edge. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the video signal transmission line is provided for every group obtained by dividing the plurality of video lines into groups each including a plurality of adjacent video lines, and the display device further comprises a selector that is a circuit arranged between the video signal transmission line and the first edge, and connected, for every group, via an input thereof to the video signal transmission line, and via an output thereof to the video lines of the group. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the signal line laying area has a shape that is arcuate at least at a part of the second edge, and the substrate has an end shape along the second edge of the signal line laying area at a portion adjacent to the second edge. ### Claim 6 A display device having a touch sensor function in addition to a video display function, comprising: signal lines formed in a display area of a substrate, including a plurality of video lines extending in a first direction and a plurality of scan lines extending in a second direction intersecting the first direction; a plurality of common electrodes formed in the display area so as to extend in the first direction, for being used for video display and touch detection; a plurality of video signal transmission lines arranged along a first edge among edges of a signal line laying area where the video lines and the scan lines are arranged on the substrate; a plurality of scan circuits arranged on the substrate along a second edge among the edges of the signal line laying area, the second edge being an edge with which ends of the scan lines are aligned; and a common electrode signal transmission line arranged on the substrate along a third edge among the edges of the signal line laying area, the third edge being an edge opposed to the first edge among edge of the signal line laying area, for applying a reference potential signal or a touch detection signal to the common electrode, wherein the signal line laying area has a shape including a first overlapping edge where the first edge overlaps the second edge and a second overlapping edge where the first edge overlaps the third edge, in a part of a frame area positioned outside the signal line laying area on the substrate, the scan circuit is arranged more outward than the video signal transmission line, and in a part of the frame area adjacent to the second overlapping edge, the scan circuit is arranged more outward than the common electrode signal transmission line. ### Claim 7 (depends on 6) The display device according to claim 6, wherein the common electrode signal transmission line includes a first drive signal transmission line to which the touch detection signal is supplied, and a second drive signal transmission line to which the reference potential signal is supplied, the first edge has a common drive circuit, the common drive circuit includes a plurality of switch circuits provided each corresponding to each of the plurality of common electrodes and arranged along the third edge so as to correspond to arrangement of the plurality of common electrodes in the second direction, for switching connection between the each common electrode and the first or second drive signal transmission line, a switch control circuit arranged in the frame area in a non-overlapping part of the third edge excluding the second overlapping edge, for controlling switching by the switch circuit, and a switch control line extending from the switch control circuit to the each switch circuit along the third edge. ### Claim 8 (depends on 6) The display device according to claim 6, wherein the common electrode signal transmission line includes a first drive signal transmission line to which the touch detection signal is supplied, and a second drive signal transmission line to which the reference potential signal is supplied, the first edge has a common drive circuit, the common drive circuit includes a plurality of switch circuits provided each corresponding to each of the plurality of common electrodes and arranged in the frame area in a non-overlapping part of the third edge, among the edges of the signal line laying area, excluding the second overlapping edge, for switching connection between the each common electrode and the first drive signal transmission line or the second drive signal transmission line, a switch control circuit arranged in the frame area in the non-overlapping part, for controlling switching by the switch circuit, and a drive signal distribution line extending from the switch circuit to the each common electrode along the third edge. ### Claim 9 (depends on 6) The display device according to claim 6, wherein the video signal transmission line is provided for every group obtained by dividing the plurality of video lines into groups each including a plurality of adjacent video lines, and the display device further comprises a selector that is a circuit arranged between the video signal transmission line and the first edge, and connected, for every group, via an input thereof to the video signal transmission line, and via an output thereof to the video lines of the group. ### Claim 10 (depends on 6) The display device according to claim 6, wherein the signal line laying area has a shape that is arcuate at least at a part of the second edge, and the substrate has an end shape along the second edge of the signal line laying area at a portion adjacent to the second edge.