# US 11,907,454 B2 · Touch display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,907,454 B2 - Document ID: US11907454B2 - Status: Granted - Kind: B2 - Application number: 17/884,534 - Filed: 2022-08-09 - Published: 2022-12-01 - Granted: 2024-02-20 - Earliest claimed: 2019-11-05 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: TaeHwan Kim; DongHee Yoo; JungSun Beak; SunMi Lee; HyeonChul Im - Web page: https://patentgrep.com/patent/US11907454B2 ## 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 3/0443: {using a single layer of sensing electrodes} - H10K 50/844: Encapsulations - H10K 50/856: comprising reflective means - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 59/40: OLEDs integrated with touch screens - H10K 59/878: {comprising reflective means} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - 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 2203/04111: 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 - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2380/02: Flexible displays - H10K 59/80515: {characterised by their shape} - H10K 59/873: {Encapsulations} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - 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 Embodiments of the disclosure relate to a touch display device with enhanced light extraction efficiency, comprising an insulation film including a concave portion and a surrounding portion disposed around the concave portion, a first electrode disposed on the concave portion and a portion of the surrounding portion, a bank including a first portion disposed on the first electrode in an area corresponding to a portion of the concave portion and a second portion disposed on the insulation film and the first electrode in an area corresponding to the surrounding portion, an organic layer disposed on the first electrode exposed by the bank, the organic layer including a light emitting layer, a second electrode disposed on the organic layer and the bank, an encapsulation layer disposed on the second electrode, a touch buffer layer disposed on the encapsulation layer, a plurality of touch electrodes disposed on the touch buffer layer, and at least one light reflecting member disposed on the touch buffer layer and spaced apart from the plurality of touch electrodes. ## Claims ### Claim 1 A display device, comprising: a substrate including an active area and a non-active area; a transistor disposed on the substrate; a sub-pixel electrically connected to the transistor, the sub-pixel comprising an organic light emitting diode; an encapsulation layer disposed on the organic light emitting diode; and a plurality of touch electrodes disposed on the encapsulation layer, the plurality of touch electrodes including an open area, wherein the sub-pixel includes at least two emission areas and at least one non-emission area in the open area of the plurality of touch electrodes, the at least one non-emission area being configured to be in a black state or to have a lower brightness than the at least two emission areas, and wherein each of the at least two emission areas and the at least one non-emission area has a shape of an octagon, a circle, an ellipse, a polygon, a triangle, a square, or a hexagon. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the at least two emission areas include a first emission area and a second emission area, and wherein the at least one non-emission area includes a first non-emission area disposed between the first emission area and the second emission area. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the first non-emission area surrounds the first emission area, and the second emission area surrounds the first non-emission area. ### Claim 4 (depends on 2) The display device according to claim 2, wherein the at least one non-emission area of the sub-pixel further includes a second non-emission area, the second non-emission area surrounding the first and second emission areas in the open area of the plurality of touch electrodes. ### Claim 5 (depends on 4) The display device according to claim 4, further comprising: a light reflecting member in the second non-emission area and surrounding the second emission area. ### Claim 6 (depends on 5) The display device according to claim 5, wherein the plurality of touch electrodes and the light reflecting member are disposed on a same layer and include a same material. ### Claim 7 (depends on 1) The display device according to claim 1, wherein the plurality of touch electrodes form a mesh or lattice shape comprising the open area. ### Claim 8 (depends on 7) The display device according to claim 7, further comprising: at least one other sub-pixel including at least two emission areas, wherein the open area of the plurality of touch electrodes includes the at least two emission areas of one or more of the sub-pixel and the at least one other sub-pixel. ### Claim 9 (depends on 1) The display device according to claim 1, wherein the open area of the plurality of touch electrodes has a shape of a diamond, a rectangle or a square. ### Claim 10 (depends on 1) The display device according to claim 1, wherein touch electrodes disposed along a same row or column among the plurality of touch electrodes are connected to each other via a bridge pattern to form one driving touch electrode line or one sensing touch electrode line. ### Claim 11 (depends on 10) The display device according to claim 10, further comprising a touch line electrically connected with the touch electrodes disposed along the same row or column, wherein the touch line is disposed on a same layer as the touch electrodes disposed along the same row or column. ### Claim 12 (depends on 11) The display device according to claim 11, further comprising an auxiliary line electrically connected with the touch line, wherein the auxiliary line is disposed on a same layer as the bridge pattern. ### Claim 13 (depends on 12) The display device according to claim 12, further comprising a buffer layer between the touch line and the auxiliary line, wherein the touch line contacts the auxiliary line via a contact hole in the buffer layer. ### Claim 14 (depends on 11) The display device according to claim 11, further comprising an insulation film on the transistor, wherein the touch line is disposed along a side surface of the insulation film. ### Claim 15 (depends on 11) The display device according to claim 11, further comprising a dam and a pad portion at a periphery of the dam in the non-active area, wherein the touch line is disposed on the dam and extends toward the pad portion. ### Claim 16 (depends on 15) The display device according to claim 15, wherein the touch line is electrically connected with a pad in the pad portion through a pad connection line. ### Claim 17 (depends on 15) The display device according to claim 15, wherein the touch line is directly connected to a pad in the pad portion. ### Claim 18 (depends on 15) The display device according to claim 15, further comprising a buffer layer on the encapsulation layer, wherein the touch line, the encapsulation layer, and the buffer layer overlap with the dam in a plan view. ### Claim 19 (depends on 15) The display device according to claim 15, further comprising at least one other dam, wherein the dam and the at least one other dam have different heights. ### Claim 20 (depends on 1) The display device according to claim 1, further comprising a plurality of buffer layers on the encapsulation layer. ### Claim 21 (depends on 20) The display device according to claim 20, further comprising a planarization film on the plurality of buffer layers. ### Claim 22 (depends on 1) The display device according to claim 1, further comprising a color filer layer between the plurality of touch electrodes and the encapsulation layer, or on the plurality of touch electrodes. ### Claim 23 (depends on 1) The display device according to claim 1, further comprising an insulation film between the transistor and the organic light emitting diode, the insulation film including a concave portion and a flat portion. ### Claim 24 (depends on 23) The display device according to claim 23, wherein the at least one non-emission area overlaps the flat portion of the insulation film.