# US 12,223,139 B2 · Touch sensor device and display device with a touch sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,223,139 B2 - Document ID: US12223139B2 - Status: Granted - Kind: B2 - Application number: 18/534,214 - Filed: 2023-12-08 - Published: 2024-05-02 - Granted: 2025-02-11 - Earliest claimed: 2012-07-24 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Naosuke Furutani; Hayato Kurasawa; Makoto Hayashi - Web page: https://patentgrep.com/patent/US12223139B2 ## CPC - G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality} - G02F 1/13338: {Input devices, e.g. touch panels} - G02F 1/133514: {Colour filters} - G02F 1/133707: {Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes} - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/13439: {characterised by their electrical, optical, physical properties; materials therefor; method of making} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - 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 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)} - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G02F 1/133302: {Rigid substrates, e.g. inorganic substrates} - G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)} - G02F 1/134318: {having a patterned common electrode} - G02F 1/136213: {Storage capacitors associated with the pixel electrode} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G02F 2201/121: common or background - G02F 2201/123: pixel - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - G09G 2300/0426: Layout of electrodes and connections - G09G 2330/02: Details of power systems and of start or stop of display operation - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 - 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 with a touch sensor having a display function and a touch sensor function is provided. The display device includes a first substrate including a pixel electrode; a first electrode along a first direction; and a second substrate including a second electrode that includes patterns of electrodes along a second direction crossing the first direction and that faces the first electrode and the pixel electrode, wherein upon the display function being activated, the pixel electrode is supplied with a pixel signal, and the second electrode is supplied with common voltage, and upon the touch sensor function being activated, the first electrode is applied with a first signal and the second electrode is configured to receive the first signal to be a second signal as a touch detecting signal. ## Claims ### Claim 1 A touch sensor device comprising: a substrate; and first electrodes arranged in a first layer on the substrate, wherein at least one of the first electrodes comprising: a first concave shape with a bottom; a first portion and a second portion that sandwich the bottom; and a third portion that is located between the first portion and the second portion and that is in contact with a whole of the bottom, the first portion has a first width in a direction in which the first concave shape dents, the third portion has a second width in the direction, and the first width is wider than the second width. ### Claim 2 (depends on 1) The touch sensor device according to claim 1, wherein a difference between the first width and the second width is greater than the second width. ### Claim 3 (depends on 1) The touch sensor device according to claim 1, wherein the second portion has a third width in the direction, the third width is wider than the second width, and a difference between the third width and the second width is greater than the second width. ### Claim 4 (depends on 1) The touch sensor device according to claim 1, further comprising a wiring line that intersects the third portion without intersecting the first portion and the second portion in a plan view. ### Claim 5 (depends on 1) The touch sensor device according to claim 1, further comprising second electrodes arranged in a second layer on the substrate, the second layer being different from the first layer, wherein the one of the first electrodes does not overlap all of the second electrodes. ### Claim 6 (depends on 1) The touch sensor device according to claim 1, further comprising a touch detection region where a touch detection is performed, wherein the first electrodes are configured to output touch detection signals. ### Claim 7 (depends on 6) The touch sensor device according to claim 6, further comprising second electrodes arranged in the touch detection region, in a second layer different from the first layer, and wherein the one of the first electrodes overlaps some of the second electrodes and does not overlap others of the second electrodes. ### Claim 8 (depends on 1) The touch sensor device according to claim 1, wherein the at least one of the first electrodes is a first one of the first electrodes, the first one of the first electrodes is adjacent to a second one of the first electrodes, the second one of the first electrodes has a second concave shape with a second bottom in a plan view, and the first concave shape faces the second concave shape across a gap between the first one of the first electrodes and the second one of the first electrodes. ### Claim 9 (depends on 1) The touch sensor device according to claim 1, wherein the at least one of the first electrodes has a second concave shape located between the first portion and the second portion, and the third portion is located between the first concave shape and the second concave shape. ### Claim 10 A touch sensor device comprising: a substrate; and first electrodes arranged in a first layer on the substrate, wherein each of the first electrodes comprising: a first concave shape; a first portion and a second portion that sandwich the first concave shape; and a third portion that is located between the first portion and the second portion and that is in contact with a deepest portion of the first concave shape, the first portion has a first width in a direction in which the first concave shape dents, the third portion has a second width in the direction, and the first width is wider than the second width. ### Claim 11 (depends on 10) The touch sensor device according to claim 10, wherein a difference between the first width and the second width is greater than the second width. ### Claim 12 (depends on 10) The touch sensor device according to claim 10, wherein the second portion has a third width in the direction, the third width is wider than the second width, and a difference between the third width and the second width is greater than the second width. ### Claim 13 (depends on 10) The touch sensor device according to claim 10, further comprising a wiring line that intersects the third portion without intersecting the first portion and the second portion in a plan view. ### Claim 14 (depends on 10) The touch sensor device according to claim 10, further comprising second electrodes arranged in a second layer on the substrate, the second layer being different from the first layer, wherein the one of the first electrodes does not overlap all of the second electrodes. ### Claim 15 (depends on 10) The touch sensor device according to claim 10, further comprising a touch detection region where a touch detection is performed, wherein the first electrodes are configured to output touch detection signals. ### Claim 16 A display device with a touch sensor comprising: pixels; and an electrode of the touch sensor overlapping some of the pixels and not overlapping others of the pixels, wherein the electrode comprising: a first concave shape with a deepest portion, a first side edge, and a second side edge in a plan view, the deepest portion being located between the first edge and second side edge; a first portion in contact with the first side; a second portion in contact with the second side; and a third portion that is between the first portion and the second portion and that is in contact with the deepest portion. ### Claim 17 (depends on 16) The display device with the touch sensor according to claim 16, wherein the electrode is driven in a display mode and in a touch sensor mode, and the electrode is supplied with: a common voltage in the display mode, and a signal of the touch sensor in the touch sensor mode. ### Claim 18 (depends on 16) The display device with the touch sensor according to claim 16, wherein the third portion is located between the first concave shape and a region that is located between the first portion and the second portion, and the electrode is not located in the region. ### Claim 19 (depends on 16) The display device with the touch sensor according to claim 16, wherein the electrode comprises second concave shapes, the first concave shape and the second concave shapes arranged in line, and each of the second concave shapes dents in a same direction where the first concave shape dents.