# US 10,871,863 B2 · Touch panel and touch device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,863 B2 - Document ID: US10871863B2 - Status: Granted - Kind: B2 - Application number: 16/193,179 - Filed: 2018-11-16 - Published: 2019-05-23 - Granted: 2020-12-22 - Earliest claimed: 2017-11-20 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Yangsik Lee; Jihyun Jung - Web page: https://patentgrep.com/patent/US10871863B2 ## CPC - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment} - G06F 3/044: by capacitive means - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - 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} - H05K 9/0079: {Electrostatic discharge protection, e.g. ESD treated surface for rapid dissipation of charges} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/40: OLEDs integrated with touch screens - H10K 59/87: {Passivation; Containers; Encapsulations} - H10K 59/873: {Encapsulations} - G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds - G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate - G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material - H10K 59/38: comprising colour filters or colour changing media [CCM] - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device including an active area and a non-active area; the active-area including a light-emitting device; an encapsulation layer disposed on the light-emitting device; a touch buffer layer disposed on the encapsulation layer; a plurality of first touch sensors disposed in a touch sensing area on the encapsulation layer; a plurality of second touch sensors disposed in the touch sensing area on the encapsulation layer and on a same layer as the first touch sensors; and a first discharge pattern extending into an area between a first touch sensor of the plurality of first touch sensors and an adjacent second touch sensor of the plurality of second touch sensors, and having one end connected to the first touch sensor or the second touch sensor. ## Claims ### Claim 1 A display device comprising an active area and a non-active area; the active-area comprising: a light-emitting device; an encapsulation layer disposed on the light-emitting device; a touch buffer layer disposed on the encapsulation layer; a plurality of first touch sensors disposed in a touch sensing area on the encapsulation layer; a plurality of second touch sensors disposed in the touch sensing area on the encapsulation layer and on a same layer as the first touch sensors; a first discharge pattern extending into an area between a first touch sensor of the plurality of first touch sensors and an adjacent second touch sensor of the plurality of second touch sensors; first connection patterns disposed between and connecting adjacent first touch sensors of the plurality of first touch sensors; and second connection patterns disposed on a layer different from the first touch sensors, and connecting adjacent second touch sensors of the plurality of second touch sensors, wherein the first connection patterns are disposed on a same layer as the first and second touch sensors, wherein a corresponding second connection pattern crosses a corresponding first connection pattern on a different layer than the corresponding first connection pattern, wherein the first discharge pattern is disposed on a same layer as the second connection patterns, wherein one end of the first discharge pattern is connected to the first touch sensor and a remaining end of the first discharge pattern overlaps the second touch sensor without connecting to the second touch sensor, and wherein a width of a portion of the first discharge pattern overlapping the second touch sensor is the same as a thickness of the second touch sensor. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first discharge pattern is connected to an outermost point of the first touch sensor. ### Claim 3 (depends on 1) The display device of claim 1, wherein the first touch sensor includes a first protrusion protruding from a side thereof, wherein the second touch sensor includes a second protrusion protruding from a side thereof, wherein the first protrusion and the second protrusion extend along a straight line between the first and second protrusions, and wherein one end of the first discharge pattern is connected to either the first protrusion or the second protrusion. ### Claim 4 (depends on 1) The touch panel of claim 1, wherein a voltage level applied to the first touch sensors and a voltage level applied to the second touch sensors in a touch sensing period are different from each other. ### Claim 5 (depends on 1) The display device of claim 1, wherein the first discharge pattern forms a discharge path for discharging a charge concentration at the crossing of the first and second connection patterns. ### Claim 6 (depends on 1) The display device of claim 1, wherein the first discharge pattern is one of a plurality of discharge patterns, and wherein each of the plurality of discharge patterns protrudes into an area between a different pair of a first touch sensor and an adjacent second touch sensor, among the plurality of first touch sensors and the plurality of second touch sensors. ### Claim 7 (depends on 1) The display device of claim 1, wherein the plurality of first touch sensors are in the form of a mesh, and the plurality of second touch sensors are in the form of a mesh. ### Claim 8 (depends on 1) The display device of claim 1, wherein at least one of the first and second connection patterns is in the form of a mesh. ### Claim 9 (depends on 1) The display device of claim 1, wherein the non-active area comprises a pad area. ### Claim 10 (depends on 9) The display device of claim 9, wherein the pad area comprises a touch pad, electrically connected to a touch line. ### Claim 11 (depends on 1) The display device of claim 1, further comprising a touch insulating layer disposed on the touch buffer layer. ### Claim 12 (depends on 11) The display device of claim 11, wherein, in the non-active area, the touch insulating layer and the touch buffer layer are disposed on a side surface of the encapsulation layer. ### Claim 13 (depends on 1) The display device of claim 1, wherein at least one of the first or second touch sensors comprises a dummy pattern, and wherein the dummy pattern is electrically isolated from the rest of the touch sensor. ### Claim 14 (depends on 1) The display device of claim 1, wherein a part of the first discharge pattern between the one end and the remaining end of the first discharge pattern overlaps an area between the first touch sensor and the second touch sensor. ### Claim 15 (depends on 1) The display device of claim 1, wherein a thickness of the first discharge pattern is different than a thickness of the first or second touch sensors. ### Claim 16 (depends on 1) The display device of claim 1, wherein the first discharge pattern is disposed between each adjacent first and second touch sensor without crossing the first and second connection patterns. ### Claim 17 (depends on 1) The display device of claim 1, wherein the first discharge pattern includes at least three discharge patterns disposed between each adjacent first and second touch sensor without crossing the first and second connection patterns. ### Claim 18 A display device comprising an active area and a non-active area; the active-area comprising: a light-emitting device; an encapsulation layer disposed on the light-emitting device; a touch buffer layer disposed on the encapsulation layer; a plurality of first touch sensors disposed in a touch sensing area on the encapsulation layer; a plurality of second touch sensors disposed in the touch sensing area on the encapsulation layer and on a same layer as the first touch sensors; and a first discharge pattern extending into an area between a first touch sensor of the plurality of first touch sensors and an adjacent second touch sensor of the plurality of second touch sensors, and having one end connected to the first touch sensor or the second touch sensor, wherein, when the first discharge pattern is connected to the first touch sensor, a thickness of the first discharge pattern is smaller than a thickness of the first touch sensor, and when the first discharge pattern is connected to the second touch sensor, a thickness of the first discharge pattern is smaller than a thickness of the second sensor.