# US 11,907,485 B2 · Display device having touch sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,907,485 B2 - Document ID: US11907485B2 - Status: Granted - Kind: B2 - Application number: 18/163,166 - Filed: 2023-02-01 - Published: 2023-06-08 - Granted: 2024-02-20 - Earliest claimed: 2019-05-14 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Eun-Min Jo; Sung-Wook Chang - Web page: https://patentgrep.com/patent/US11907485B2 ## CPC - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - 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} - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/40: OLEDs integrated with touch screens - H10K 59/873: {Encapsulations} - H10K 77/111: {Flexible substrates} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - 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 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/352: {the areas of the RGB subpixels being different} - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K 2102/311: {Flexible OLED} - Y02E 10/549: Organic PV cells - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas. ## Claims ### Claim 1 A display device comprising: a substrate comprising an active area and a bezel area, the bezel area including a bending area and a pad area; a plurality of light-emitting elements in the active area; an encapsulation layer including at least one inorganic layer and at least one organic layer, the encapsulation layer on the plurality of light-emitting elements; a plurality of touch electrodes on the encapsulation layer; and a plurality of touch lines disposed on the encapsulation layer and connected to a respective touch electrode of the plurality of touch electrodes, at least one touch line of the plurality of touch lines having a first portion extending in a first direction in the active area and a second portion extending in a second direction different from the first direction in the active area, wherein the plurality of touch lines are in a mesh shape in the active area and a portion of the bezel area. ### Claim 2 (depends on 1) The display device according to claim 1, further comprising: a touch buffer layer between the encapsulation layer and the plurality of touch electrodes. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the touch buffer layer extends to a side surface of the encapsulation layer and the pad area. ### Claim 4 (depends on 2) The display device according to claim 2, further comprising: a touch pad in the pad area; and a bending signal line in the bending area, the bending signal line electrically connected to at least one touch line of the plurality of touch lines and the touch pad. ### Claim 5 (depends on 1) The display device according to claim 1, further comprising: a bank between the plurality of light-emitting elements. ### Claim 6 (depends on 5) The display device according to claim 5, wherein at least one of the plurality of touch electrodes and at least one of the plurality of touch lines corresponds to the bank in the active area. ### Claim 7 (depends on 1) The display device according to claim 1, further comprising: a dummy pattern disposed between the plurality of touch electrodes, between the plurality of touch lines, and between the plurality of touch electrodes and the plurality of touch lines. ### Claim 8 (depends on 7) The display device according to claim 7, wherein the dummy pattern is in a floating state in which no driving signal or voltage is applied to the dummy pattern. ### Claim 9 (depends on 7) The display device according to claim 7, wherein the dummy pattern is spaced apart from the plurality of touch electrodes and the plurality of touch lines. ### Claim 10 (depends on 7) The display device according to claim 7, wherein the plurality of touch electrodes, the plurality of touch lines, and the dummy pattern comprise a same material and are disposed in a same plane in the active area. ### Claim 11 (depends on 7) The display device according to claim 7, further comprising: a bank between the plurality of light-emitting elements, wherein the dummy pattern overlaps the bank and comprises a mesh shape. ### Claim 12 (depends on 2) The display device according to claim 2, further comprising: a color filter on a portion of the plurality of touch electrodes and the plurality of touch lines. ### Claim 13 (depends on 12) The display device according to claim 12, further comprising: a plurality of black matrixes on the plurality of touch electrodes. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the color filter is between the plurality of black matrixes. ### Claim 15 (depends on 4) The display device according to claim 4, further comprising: at least one dam between the active area and the bending area in the bezel area. ### Claim 16 (depends on 15) The display device according to claim 15, wherein the encapsulation layer includes a first inorganic encapsulation layer and a second inorganic encapsulation layer. ### Claim 17 (depends on 16) The display device according to claim 16, wherein the first inorganic encapsulation layer is on the at least one dam, and the second inorganic encapsulation layer is on the first inorganic encapsulation layer. ### Claim 18 (depends on 17) The display device according to claim 17, wherein the touch buffer layer is on the second inorganic encapsulation layer, and the at least one touch line is disposed on the touch buffer layer. ### Claim 19 (depends on 11) The display device according to claim 11, wherein the dummy pattern is in the active area of the encapsulation layer. ### Claim 20 (depends on 11) The display device according to claim 11, wherein the dummy pattern is in a single-layer structure without an insulation film.