# US 10,770,520 B2 · Organic light emitting display device and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,520 B2 - Document ID: US10770520B2 - Status: Granted - Kind: B2 - Application number: 16/590,728 - Filed: 2019-10-02 - Published: 2020-01-30 - Granted: 2020-09-08 - Earliest claimed: 2015-09-07 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Jong-Kyun Lee; Nack-Bong Choi; Myung-Woo Han - Web page: https://patentgrep.com/patent/US10770520B2 ## 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} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - H10K 59/40: OLEDs integrated with touch screens - H10K 71/80: using temporary substrates - 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 - H10K 59/1201: {Manufacture or treatment} - H10K 59/126: Shielding, e.g. light-blocking means over the TFTs - H10K 59/871: {Self-supporting sealing arrangements} - H10K 59/873: {Encapsulations} - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K 2102/311: {Flexible OLED} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An organic light emitting display device realizes slimness, having flexibility, and effectively reducing or preventing visibility of reflected external light, which includes an organic light emitting panel, a first adhesive layer on the organic light emitting panel, a touch electrode array being in contact with the first adhesive layer, a separation layer on the touch electrode array, and a cover film on the separation layer. ## Claims ### Claim 1 Display device comprising: a light emitting device in an active region of a substrate; an encapsulation layer on the light emitting device; a touch sensor on the encapsulation; a touch pad connected to the touch sensor in a pad part of the substrate; a routing structure connected to the touch sensor; and at least one seal material between the active region and the pad part, wherein the touch sensor includes a plurality of a first and a second touch electrodes which cross each other in the active region, at least one bridge pattern electrically connected to the first touch electrodes, wherein at least one the first and second touch electrodes includes metal mesh patterns, and wherein the touch pad is in contact with at least one insulating layer on the substrate, in a peripheral region at an outside region of the active region. ### Claim 2 (depends on 1) The display device according to claim 1, further comprising: a first adhesive between the encapsulation and the touch sensor. ### Claim 3 (depends on 1) The display device according to claim 1, further comprising: a touch insulating layer between the light emitting device and the routing structure, and overlapping at least a part of the at least one seal material. ### Claim 4 (depends on 1) The display device according to claim 1, further comprising: a conductive layer between adjacent seal materials. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the substrate is a plastic substrate. ### Claim 6 (depends on 1) The display device according to claim 1, further comprising: a protective layer between the first and second touch electrodes and the bridge pattern. ### Claim 7 (depends on 6) The display device according to claim 6, wherein the touch pad includes a touch pad electrode corresponding to the first or second touch electrodes in the peripheral region, and wherein the routing structure includes a plurality of routing lines transferring signals from the touch pad electrode to the first or second touch electrodes. ### Claim 8 (depends on 7) The display device according to claim 7, wherein the first or second touch electrodes are disposed on different levels from the touch pad electrode or the routing lines. ### Claim 9 (depends on 7) The display device according to claim 7, wherein the touch sensor further comprises a barrier layer and an organic buffer layer contacting each other, each of the barrier layer and the organic buffer layer has an active region and a peripheral region. ### Claim 10 (depends on 9) The display device according to claim 9, wherein the first or second touch electrodes are in contact with an external light shielding pattern including a color filer layer and a black matrix layer in the active region, and the touch pad electrode and the routing lines are in contact with the barrier layer in the peripheral region. ### Claim 11 (depends on 1) The display device according to claim 1, wherein the bridge pattern is disposed through a contact hole in the protective layer at each crossing part between the first and second touch electrodes, to connect adjacent first touch electrodes. ### Claim 12 (depends on 11) The display device according to claim 11, wherein the first and the second touch electrodes are disposed at the same level except for each crossing part. ### Claim 13 (depends on 1) The display device according to claim 1, further comprising: a second adhesive layer between the touch sensor and a polarizing plate. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the seal material overlaps with the second adhesive layer and the polarizing plate. ### Claim 15 (depends on 14) The display device according to claim 14, further comprising a cover film to protect an outside surface of the display device. ### Claim 16 (depends on 1) The display device according to claim 1, the encapsulation layer comprises a plurality of inorganic encapsulation layers and at least one organic encapsulation layer. ### Claim 17 Display device comprising: a light emitting device in an active region of a substrate; an encapsulation layer on the light emitting device; a touch sensor on the encapsulation; a touch pad connected to the touch sensor in a pad part of the substrate; a routing line connected to the touch sensor; and wherein the touch sensor includes a plurality of a first and a second touch electrodes which cross each other in the active region, at least one bridge pattern and a protective layer between the first and second touch electrodes and the bride pattern electrically connected to the first touch electrodes through a contact hole in a protective layer, wherein at least one the first or second touch electrodes include metal mesh patterns, and wherein the encapsulation layer is in contact with at least one insulating layer on the substrate in a peripheral region. ### Claim 18 (depends on 17) The display device according to claim 17, further comprising: at least one seal material between the active region and the pad part. ### Claim 19 (depends on 17) The display device according to claim 17, wherein the touch pad is in contact with at least one insulating layer on the substrate, in a peripheral region at an outside region of the active region. ### Claim 20 (depends on 17) The display device according to claim 17, the encapsulation layer comprises a plurality of inorganic encapsulation layers and at least one organic encapsulation layer. ### Claim 21 (depends on 17) The display device according to claim 17, further comprising: a first adhesive between the encapsulation and the touch sensor. ### Claim 22 (depends on 18) The display device according to claim 18, further comprising: a touch insulating layer between the light emitting device and the routing line, and overlapping at least a part of the at least one seal material. ### Claim 23 (depends on 17) The display device according to claim 17, wherein the substrate is a plastic substrate. ### Claim 24 (depends on 17) The display device according to claim 17, wherein the touch pad includes at least one touch pad electrode corresponding to the first or second touch electrodes in the peripheral region, and wherein the routing line includes a plurality of routing lines transferring signals from the touch pad electrode to the first or second touch electrodes. ### Claim 25 (depends on 24) The display device according to claim 24, wherein the first or second touch electrodes are disposed on different levels from the touch pad electrodes or the routing lines. ### Claim 26 (depends on 24) The display device according to claim 24, wherein each of the first and second touch electrodes, the routing lines, and the touch pad electrode has at least a double-layered electrode structure. ### Claim 27 (depends on 26) The display device according to claim 26, wherein the at least double-layered electrode structure includes a metal pattern and a transparent electrode on the metal pattern having a larger area than the metal pattern. ### Claim 28 (depends on 26) The display device according to claim 26, wherein the bridge pattern is disposed through a contact hole in the protective layer at each crossing part between the first and second touch electrodes to connect adjacent first touch electrodes. ### Claim 29 (depends on 28) The display device according to claim 28, wherein the first and the second touch electrodes are disposed at the same level except for each crossing part. ### Claim 30 (depends on 17) The display device according to claim 17, further comprising: a second adhesive layer on the touch sensor and a polarizing plate. ### Claim 31 (depends on 30) The display device according to claim 30, wherein the at least one seal material overlaps with the second adhesive layer and the polarizing plate. ### Claim 32 An organic light emitting display device comprising: a substrate; a thin film transistor array including an active layer, a gate electrode, a source and drain electrode on the substrate; at least one light emitting device on the thin film transistor array; an encapsulation layer on the at least one light emitting device; a touch electrode array on the encapsulation layer, the touch electrode array having a plurality of first touch electrodes and second touch electrodes intersecting each other and at least one bridge pattern electrically connected to the first touch electrodes through a contact hole in a protective layer; a dielectric interlayer between the substrate and the touch electrode array; a touch pad electrode electrically connected to the touch electrode array; and a routing line electrically connected to the touch pad electrode and in contact with the dielectric interlayer, wherein at least one the first and second touch electrodes include metal mesh patterns. ### Claim 33 (depends on 32) The display device according to claim 32, wherein the dielectric interlayer is extended to an edge of the substrate to cover a touch auxiliary electrode on the substrate. ### Claim 34 (depends on 33) The display device according to claim 33, further comprising: a conductive layer in the peripheral region at an outside region of the active region, wherein the conductive layer is in contact with the touch pad and the touch auxiliary electrode. ### Claim 35 (depends on 34) The display device according to claim 34, wherein the conductive layer in the peripheral region is electrically connected to the touch pad. ### Claim 36 (depends on 32) The display device according to claim 32, wherein the contact hole overlaps with a part of a bank defining a light emitting region.