# US 10,873,051 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 10,873,051 B2 - Document ID: US10873051B2 - Status: Granted - Kind: B2 - Application number: 16/666,863 - Filed: 2019-10-29 - Published: 2020-02-27 - Granted: 2020-12-22 - Earliest claimed: 2017-07-18 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Jeonghoon Lee; JaeWon Lee; Sungjin Kim; Jaehyung Jang; Hyangmyoung Gwon - Web page: https://patentgrep.com/patent/US10873051B2 ## CPC - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/044: by capacitive means - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/1315: {comprising structures specially adapted for lowering the resistance} - 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 2203/04111: 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: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract Disclosed is a display device which facilitates to prevent a remaining film for a process of forming a metal pattern, wherein the display device may include a substrate including a display area having pixels, and a non-display area having pads to surround the display area, a dam between the display area and the pads, an encapsulation film for covering the dam and the pixels in the display area, a first metal pattern disposed in the non-display area and patterned on the encapsulation film, an insulating layer provided on the first metal pattern, and a second metal pattern disposed in the non-display area and patterned on the insulating layer, wherein the first metal pattern is not provided in a dam area with the dam, and the second metal pattern is provided on the dam area while being in contact with the first metal pattern via a contact hole penetrating through the insulating layer. ## Claims ### Claim 1 A display device comprising: a substrate including a display area provided with pixels, and a non-display area adjacent to the display area and including at least one pad; a dam structure disposed between the display area and the pad; an encapsulation film covering the pixels disposed in the display area, the encapsulation film including at least one inorganic film covering the dam structure; a first metal pattern having at least a portion disposed in the non-display area and positioned on the encapsulation film; an insulating layer provided on the first metal pattern and the dam structure; and a second metal pattern disposed on the insulating layer and overlapping the dam structure, the second metal pattern being in contact with the first metal pattern via a contact hole penetrating through the insulating layer. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the dam structure is disposed to surround the display area. ### Claim 3 (depends on 1) The display device according to claim 1, wherein the contact hole overlaps the dam structure. ### Claim 4 (depends on 1) The display device according to claim 1, wherein a plurality of dam structures are provided, the plurality of dam structures have different heights. ### Claim 5 (depends on 1) The display device according to claim 1, wherein a plurality of contact holes are provided, the plurality of contact holes have different heights. ### Claim 6 (depends on 1) The display device according to claim 1, wherein at least one of the first and second metal patterns is in contact with the pad. ### Claim 7 (depends on 1) The display device according to claim 1, further comprising: first touch electrodes provided on the encapsulation film of the display area, the first touch electrodes connected to one another in a first direction; and second touch electrodes provided on the encapsulation film of the display area, the second touch electrodes connected to one another in a second direction different from the first direction. ### Claim 8 (depends on 7) The display device according to claim 7, wherein the first touch electrodes are formed directly on a same layer as the second touch electrodes. ### Claim 9 (depends on 7) The display device according to claim 7, wherein the first touch electrodes are formed in the different layer from the second touch electrodes. ### Claim 10 (depends on 7) The display device according to claim 7, wherein the second metal pattern is a touch line formed in a same layer as the first touch electrodes, and extends from a connected first touch electrode to the pad, connecting the connected first touch electrode with the pad. ### Claim 11 (depends on 7) The display device according to claim 7, wherein the first metal pattern is an auxiliary line formed in the same layer as the second touch electrodes, and is spaced apart from the second touch electrodes. ### Claim 12 (depends on 1) The display device according to claim 1, wherein: the first metal pattern is provided between the display area and the dam structure; and the second metal pattern is in contact with the first metal pattern via a first contact hole disposed between the display area and the dam structure. ### Claim 13 (depends on 1) The display device according to claim 1, wherein: the first metal pattern is provided between the dam structure and the pad; and the second metal pattern is in contact with the first metal pattern via a second contact hole disposed between the dam structure and the pad. ### Claim 14 (depends on 7) The display device according to claim 7, wherein: the first touch electrodes are formed in the same layer as the second touch electrodes; the first touch electrodes are spaced from one another in the first direction; and the second touch electrodes are integrated with one another in the second direction. ### Claim 15 (depends on 14) The display device according to claim 14, wherein the second metal pattern is a touch line formed in the same layer as the first and second touch electrodes, and one of extending from a first touch electrode disposed at one end among the plurality of first touch electrodes to the pad and electrically connecting the pad, or extending from a second touch electrode disposed at one end among the plurality of second touch electrodes to the pad and electrically connecting the pad. ### Claim 16 (depends on 14) The display device according to claim 14 further comprising a bridge electrode that electrically connects two adjacent first touch electrodes with each other in the first direction. ### Claim 17 (depends on 16) The display device according to claim 16, wherein: the first metal pattern is provided between the display area and the dam structure and the second metal pattern is in contact with the first metal pattern via a first contact hole disposed between the display area and the dam structure. ### Claim 18 (depends on 16) The display device according to claim 16, wherein: the first metal pattern is provided between the dam structure and the pad; and the second metal pattern is in contact with the first metal pattern via a second contact hole disposed between the dam structure and the pad. ### Claim 19 (depends on 16) The display device according to claim 16, wherein the first metal pattern is an auxiliary line formed in a same layer as the bridge electrode, and spaced apart from the bridge electrode. ### Claim 20 (depends on 1) The display device of claim 1, wherein the first metal pattern and second metal pattern stack over one another on the pad. ### Claim 21 (depends on 1) The display device of claim 1, wherein: the encapsulation film includes a first inorganic film, an organic film over the first inorganic film, and a second inorganic film over the organic film; a first sidewall of the dam structure is adjacent to the organic film; and the second inorganic film extends over an upper surface of the dam structure and adjacent to a second sidewall of the dam structure, the second sidewall being opposite to the first sidewall. ### Claim 22 (depends on 21) The display device of claim 21, wherein the dam structure abuts the first inorganic film and a lower surface of the dam structure is substantially coplanar with an adjacent portion of the first inorganic film.