# US 12,602,136 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,602,136 B2 - Document ID: US12602136B2 - Status: Granted - Kind: B2 - Application number: 18/400,641 - Filed: 2023-12-29 - Published: 2024-04-25 - Granted: 2026-04-14 - Earliest claimed: 2016-07-29 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Chiwook An; Doyeon Kim; Sunghyun Park; Jaehyun Lee; Sung-Woong Cho - Web page: https://patentgrep.com/patent/US12602136B2 ## CPC - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G09G 3/3225: using an active matrix - H10K 59/40: OLEDs integrated with touch screens - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - 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 - H10K 59/1213: {the pixel elements being TFTs} - H10K 2102/311: {Flexible OLED} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a display panel, and a touch sensing unit on the display panel, the touch sensing unit including a first conductive pattern on the display panel, an insulating layer covering the first conductive pattern, and a second conductive pattern on the insulating layer, partially crossing the first conductive pattern, and having a thickness that is greater than a thickness of the first conductive pattern. ## Claims ### Claim 1 A display device comprising: an organic light emitting device layer; a thin film encapsulation layer on the organic light emitting device layer; a buffer layer directly on the thin film encapsulation layer; and a touch sensing unit directly on the buffer layer, the touch sensing unit comprising: a first conductive pattern on the buffer layer, and comprising: a first conductive layer on the buffer layer; a second conductive layer on the first conductive layer; and a third conductive layer on the second conductive layer; an insulating layer covering the first conductive pattern; and a second conductive pattern on the insulating layer, and having a thickness that is greater than a thickness of the first conductive pattern, and comprising: a fourth conductive layer on the insulating layer; a fifth conductive layer on the fourth conductive layer; and a sixth conductive layer on the fifth conductive layer, wherein the first conductive pattern has a first inclined surface and the second conductive pattern has a second inclined surface along a first direction when viewed in a second direction crossing the first direction, the first direction and the second direction crossing a third direction along which the thicknesses are defined. ### Claim 2 (depends on 1) The display device of claim 1, wherein a first upper surface of the second conductive pattern connected to a side of the inclined surface overlaps the first conductive layer in a plan view, a second upper surface of the second conductive pattern connected to other side of the inclined surface is apart from the first conductive layer in a plan view and has a lower height than that of the first upper surface. ### Claim 3 (depends on 1) The display device of claim 1, wherein the first conductive pattern is directly on the buffer layer. ### Claim 4 (depends on 3) The display device of claim 3, wherein the first conductive pattern is on the buffer layer. ### Claim 5 (depends on 1) The display device of claim 1, wherein the thin film encapsulation layer is formed on the organic light emitting device layer by using at least one of a deposition process, an inkjet printing process, or a coating process. ### Claim 6 (depends on 5) The display device of claim 5, wherein the thin film encapsulation layer comprises an inorganic film deposited on the organic light emitting device layer. ### Claim 7 (depends on 5) The display device of claim 5, wherein the thin film encapsulation layer comprises an organic film inkjet printed on the organic light emitting device layer. ### Claim 8 (depends on 5) The display device of claim 5, wherein the thin film encapsulation layer comprises an organic film coated on the organic light emitting device layer. ### Claim 9 (depends on 1) The display device of claim 1, wherein the thickness of the first conductive pattern is less than a thickness of the insulating layer. ### Claim 10 (depends on 9) The display device of claim 9, wherein the thickness of the insulating layer is substantially equal to a thickness of the second conductive pattern. ### Claim 11 (depends on 1) The display device of claim 1, wherein a thickness of the second conductive layer is greater than each of a thickness of the first conductive layer and a thickness of the third conductive layer. ### Claim 12 (depends on 1) The display device of claim 1, wherein a thickness of the fifth conductive layer is greater than each of a thickness of the fourth conductive layer and a thickness of the sixth conductive layer. ### Claim 13 (depends on 1) The display device of claim 1, wherein a thickness of the second conductive layer is less than a thickness of the fifth conductive layer. ### Claim 14 (depends on 1) The display device of claim 1, wherein a thickness difference between the second conductive layer and the first conductive layer is greater than a thickness difference between the third conductive layer and the first conductive layer. ### Claim 15 (depends on 1) The display device of claim 1, wherein a thickness difference between the fifth conductive layer and the fourth conductive layer is greater than a thickness difference between the sixth conductive layer and the fourth conductive layer. ### Claim 16 (depends on 1) The display device of claim 1, wherein a thickness difference between the fifth conductive layer and the fourth conductive layer is greater than a thickness difference between the second conductive layer and the first conductive layer. ### Claim 17 An electronic device comprising: a display module comprising an organic light emitting device layer and a thin film encapsulation layer on the organic light emitting device layer; a window disposed on the display module; and a touch sensing unit between the display module and the window, the touch sensing unit comprising: a first conductive pattern on the display module, and comprising: a first conductive layer; a second conductive layer on the first conductive layer; and a third conductive layer on the second conductive layer; an insulating layer covering the first conductive pattern; and a second conductive pattern on the insulating layer, having a thickness that is greater than a thickness of the first conductive pattern, and comprising: a fourth conductive layer on the insulating layer; a fifth conductive layer on the fourth conductive layer; and a sixth conductive layer on the fifth conductive layer, wherein the first conductive pattern has a first inclined surface and the second conductive pattern has a second inclined surface along a first direction when viewed in a second direction crossing the first direction, the first direction and the second direction crossing a third direction along which the thicknesses are defined. ### Claim 18 (depends on 17) The electronic device of claim 17, further comprising a protective film below the display module, wherein the display module, the touch sensing unit, and the window are foldable along a folding axis overlapping the organic light emitting device layer in a plan view. ### Claim 19 (depends on 17) The electronic device of claim 17, wherein the organic light emitting device layer comprises: a plurality of first light emitting areas to emit red light; a plurality of second light emitting areas to emit green light; and a plurality of third light emitting areas to emit blue light, wherein, viewed in a plan view, one or more of the second light emitting areas are a different size than at least one of the first light emitting areas or the third light emitting areas; and wherein the second conductive pattern comprises: first touch sensor parts comprising a plurality of metal mesh lines defining a plurality of mesh holes; second touch sensor parts comprising a plurality of metal mesh lines defining a plurality of mesh holes; and first connection parts connecting respective ones of the first touch sensor parts, wherein viewed in a plan view, at least one of the first light emitting areas, at least one of the second light emitting areas, or at least one of the third light emitting areas is located within one of the mesh holes defined by one or more of the first touch sensor parts such that the metal mesh lines of the one or more first touch sensor parts do not overlap with a respective one of the at least one of the first light emitting areas, the at least one of the second light emitting areas, or the at least one of the third light emitting areas, and wherein at least another one of the first light emitting areas, at least another one of the second light emitting areas, or at least another one of the third light emitting areas is located within one of the mesh holes defined by one or more of the second touch sensor parts such that the metal mesh lines of the one or more second touch sensor parts do not overlap with a respective one of the at least another one of the first light emitting areas, the at least another one of the second light emitting areas, or the at least another one of the third light emitting areas, wherein the first conductive pattern comprises electrically conductive second connection parts connecting respective ones of the second touch sensor parts, and wherein a conductive contact hole through the insulating layer connects respective ones of the second connection parts and the second touch sensor parts. ### Claim 20 (depends on 17) The electronic device of claim 17, wherein the display module, the touch sensing unit, and the window are foldable along a folding axis overlapping the organic light emitting device layer in a plan view.