# US 12,193,278 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 12,193,278 B2 - Document ID: US12193278B2 - Status: Granted - Kind: B2 - Application number: 18/399,954 - Filed: 2023-12-29 - Published: 2024-04-25 - Granted: 2025-01-07 - Earliest claimed: 2022-03-17 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Hiroshi Tabatake - Web page: https://patentgrep.com/patent/US12193278B2 ## CPC - H10K 59/122: Pixel-defining structures or layers, e.g. banks - G09G 3/3225: using an active matrix - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/873: {Encapsulations} - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor - H10K 59/352: {the areas of the RGB subpixels being different} - H10K 59/80516: {combined with auxiliary electrodes, e.g. ITO layer combined with metal lines} - 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 According to one embodiment, a display device includes a substrate, a circuit layer including a metal-made feed line in a surrounding area, an insulating layer covering the circuit layer, a lower electrode, a rib, a partition above the rib, an upper electrode connected to the partition, an organic layer between the electrodes and a conductive layer connected to the partition. The partition and the conductive layer each includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion. The lower portion of the conductive layer and the feed line are in contact with each other in the first contact portion in the surrounding area. ## Claims ### Claim 1 A display device comprising: a substrate; a circuit layer including a pixel circuit disposed in a display area containing pixels, and a metal-made feed line disposed in a surrounding area between an end portion of the substrate and the display area; an insulating layer covering the circuit layer; a lower electrode disposed above the insulating layer in the display area and connected to the pixel circuit; a rib including an aperture overlapping the lower electrode; a partition conductive layer disposed above the rib in the display area; an upper electrode opposing the lower electrode and connected to the partition conductive layer; and an organic layer disposed between the lower electrode and the upper electrode and emitting light, wherein the partition conductive layer includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion, and the lower portion of the partition conductive layer and the feed line are in contact with each other in a first contact portion located in the surrounding area. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first contact portion is located between an end portion of the insulating layer and the end portion of the substrate in plan view. ### Claim 3 (depends on 1) The display device of claim 1, wherein the first contact portion surrounds the display area. ### Claim 4 (depends on 1) The display device of claim 1, further comprising a relay wiring line connected to the feed line in a second contact portion located in the surrounding area and connected to the partition conductive layer in a third contact portion located in the surrounding area. ### Claim 5 (depends on 4) The display device of claim 4, wherein the second contact portion is located between the display area and the first contact portion in plan view. ### Claim 6 (depends on 4) The display device of claim 4, wherein the third contact portion is located between the display area and the second contact portion in plan view. ### Claim 7 (depends on 4) The display device of claim 4, wherein the relay wiring line is covered by the rib, the third contact portion includes a plurality of contact holes provided in the rib, and the partition conductive layer is in contact with the relay wiring line via the plurality of contact holes. ### Claim 8 (depends on 1) The display device of claim 1, further comprising a dam structure including a protrusion disposed in the surrounding area, wherein the first contact portion is located between an end portion of the insulating layer and the protrusion in plan view. ### Claim 9 (depends on 8) The display device of claim 8, wherein the end portion of the partition conductive layer is located between the protrusion and the end portion of the substrate in plan view. ### Claim 10 (depends on 8) The display device of claim 8, wherein the dam structure includes a first protrusion surrounding the display area and a second protrusion surrounding the first protrusion, and an end portion of the partition conductive layer is located between the first protrusion and the second protrusion in plan view. ### Claim 11 (depends on 1) The display device of claim 1, further comprising a drive circuit disposed in the surrounding area and supplying a signal to the pixel circuit, and an end portion of the partition conductive layer is located between the drive circuit and the end portion of the substrate in plan view. ### Claim 12 (depends on 1) The display device of claim 1, wherein the organic layer is disposed in the surrounding area as well, and the organic layer is divided by an end portion of the partition conductive layer. ### Claim 13 (depends on 1) The display device of claim 1, wherein an upper surface of the lower electrode is formed of ITO, and a metal-made lower portion of the partition conductive layer is made of aluminum. ### Claim 14 A display device comprising: a substrate; a drive transistor in a pixel disposed in a display area, and a metal-made feed line disposed in a surrounding area between an end portion of the substrate and the display area; an insulating layer covering the drive transistor; a lower electrode disposed above the insulating layer in the display area and connected to the drive transistor; a rib including an aperture overlapping the lower electrode; a partition conductive layer disposed above the rib in the display area; an upper electrode opposing the lower electrode and connected to the partition conductive layer; and an organic layer disposed between the lower electrode and the upper electrode and emitting light, a conductive layer disposed in the surrounding area and connected to the partition conductive layer, wherein the partition conductive layer includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion, and the lower portion of the partition conductive layer and the feed line are in contact with each other in a first contact portion located in the surrounding area. ### Claim 15 (depends on 14) The display device of claim 14, wherein the first contact portion is located between an end portion of the insulating layer and the end portion of the substrate in plan view. ### Claim 16 (depends on 14) The display device of claim 14, wherein the first contact portion surrounds the display area. ### Claim 17 (depends on 14) The display device of claim 14, further comprising a relay wiring line connected to the feed line in a second contact portion located in the surrounding area and connected to the partition conductive layer in a third contact portion located in the surrounding area. ### Claim 18 (depends on 17) The display device of claim 17, wherein the second contact portion is located between the display area and the first contact portion in plan view. ### Claim 19 (depends on 17) The display device of claim 17, wherein the third contact portion is located between the display area and the second contact portion in plan view. ### Claim 20 (depends on 14) The display device of claim 14, further comprising a dam structure including a protrusion disposed in the surrounding area, wherein the first contact portion is located between an end portion of the insulating layer and the protrusion in plan view.