# US 12,010,870 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 12,010,870 B2 - Document ID: US12010870B2 - Status: Granted - Kind: B2 - Application number: 18/301,344 - Filed: 2023-04-17 - Published: 2023-08-10 - Granted: 2024-06-11 - Earliest claimed: 2018-03-06 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Yuko Matsumoto - Web page: https://patentgrep.com/patent/US12010870B2 ## CPC - H10K 59/88: Dummy elements, i.e. elements having non-functional features - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - H05B 33/04: Sealing arrangements {, e.g. against humidity} - H05B 33/12: Light sources with substantially two-dimensional [2D] radiating surfaces - H05B 33/22: characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers - H05B 33/26: characterised by the composition or arrangement of the conductive material used as an electrode - H05B 33/28: of translucent electrodes - H10K 59/121: characterised by the geometry or disposition of pixel elements - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/1315: {comprising structures specially adapted for lowering the resistance} - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/873: {Encapsulations} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A display device according to an embodiment of the present invention includes: a base material including a display region having a plurality of pixels and a frame region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductor portion provided in the frame region and connected to the upper electrode; and a rib provided on the conductor portion, wherein the upper electrode is arranged on the conductor portion via the rib, a first contact portion where the upper electrode and the conductor portion contact each other is located in the frame region, the rib has a side surface located at an opposite side of the first contact portion from the display region, and an end portion of the upper electrode faces the side surface. ## Claims ### Claim 1 A display device comprising: a base material including a display region having a plurality of pixels and a frame region adjacent to the display region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductive layer provided in the frame region and connected to the upper electrode; and a rib provided on the conductive layer, wherein a part of the upper electrode is arranged above the conductive layer via the rib, and a first contact portion where the upper electrode and the conductive layer contact each other is located in the frame region. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the rib includes a first rib and a second rib, the first contact portion being located between the display region and the first rib, the first rib being located between the first contact portion and the second rib, the upper electrode crosses over the first rib and is in contact with the second rib, and a second contact portion where the upper electrode and the conductive layer contact each other is located between the first rib and the second rib. ### Claim 3 (depends on 2) The display device according to claim 2, wherein a part of the second rib does not overlap the upper electrode in a plan view. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the rib covers an end portion of the conductive layer. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the first contact portion is surrounded by the rib. ### Claim 6 (depends on 1) The display device according to claim 1, wherein the rib has a grid pattern in a plan view. ### Claim 7 (depends on 1) The display device according to claim 1, wherein a material of the conductive layer is different from a material of the upper electrode. ### Claim 8 (depends on 1) The display device according to claim 1, wherein adhesiveness of the rib to the upper electrode is higher than adhesiveness of the conductive layer to the upper electrode. ### Claim 9 (depends on 1) The display device according to claim 1, wherein the conductive layer is formed in a same layer as the lower electrode. ### Claim 10 (depends on 1) The display device according to claim 1, wherein the conductive layer includes a same material as a material of the lower electrode. ### Claim 11 (depends on 1) The display device according to claim 1, wherein the conductive layer includes an In-based oxide material. ### Claim 12 (depends on 1) The display device according to claim 1, wherein the upper electrode includes a metal material. ### Claim 13 (depends on 1) The display device according to claim 1, wherein the width of the first contact portion is 250 μm or less. ### Claim 14 (depends on 1) The display device according to claim 1, wherein the width of the first contact portion is 100 μm or more. ### Claim 15 (depends on 1) The display device according to claim 1, wherein a first contact area where the conductive layer is in contact with the upper electrode is 80% or more of a sum of the first contact area and a second contact area where the conductive layer is in contact with the rib. ### Claim 16 (depends on 1) The display device according to claim 1, wherein the upper electrode overlaps at least a part of the rib in a plan view. ### Claim 17 A display device comprising: a base material including a display region having a plurality of pixels and a frame region adjacent to the display region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductive layer provided in the frame region and connected to the upper electrode; and a rib provided on the conductive layer, wherein a part of the upper electrode is arranged above the conductive layer via the rib, a first contact portion where the upper electrode and the conductive layer contact each other is located in the frame region, and an end of the conductive layer is covered with the upper electrode in a plan view. ### Claim 18 A display device comprising: a base material including a display region having a plurality of pixels and a frame region adjacent to the display region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductive layer provided in the frame region and connected to the upper electrode; and a rib provided on the conductive layer, wherein a part of the upper electrode is arranged above the conductive layer via the rib, the rib includes at least one protrusion, the conductive layer has at least one region exposed from the rib, in the at least one region, the conductive layer is in contact with the upper electrode, and the upper electrode is located across the at least one protrusion and the at least one region. ### Claim 19 (depends on 18) The display device according to claim 18, wherein the rib includes a first protrusion that runs in a first direction and a second protrusion that runs in a second direction, and the first protrusion and the second protrusion face each other and do not intersect each other.