# US 2021/0241684 A1 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0241684 A1 - Document ID: US20210241684A1 - Status: Published application - Kind: A1 - Application number: 17/236,004 - Filed: 2021-04-21 - Published: 2021-08-05 - Earliest claimed: 2018-10-26 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Yasuhiro OGAWA; Tetsuo Morita - Web page: https://patentgrep.com/patent/US20210241684A1 ## CPC - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - 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) - H10H 20/825: containing nitrogen, e.g. GaN - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10W 90/00: Package configurations - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0804: Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements - 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) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract According to one embodiment, a display device includes first wiring layers, a second wiring layer, a first insulating layer, first mounting electrodes, a second mounting electrode, a first light emitting element and a second light emitting element. The second mounting electrode is arranged to surround a first mounting electrode and an other first mounting electrode. The first light emitting element is mounted across the first mounting electrode and the second mounting electrode. The second light emitting element is mounted across the other first mounting electrode and the second mounting electrode. The second mounting electrode is electrically connected to the second wiring layer through a second opening of the first insulating layer, in a non-display area. ## Claims ### Claim 1 A display device comprising: a plurality of first wiring layers provided on a substrate and located in a display area; a second wiring layer provided on the substrate and located in a non-display area other than the display area; a first insulating layer located in the display area and the non-display area, covering the plurality of first wiring layers and the second wiring layer, and including a plurality of first openings exposing parts of the plurality of first wiring layers, respectively; a plurality of first mounting electrodes located in the display area and provided on the first insulating layer, each of the first mounting electrodes being electrically connected to one of the plurality of first wiring layers through one of the plurality of first openings; a second mounting electrode provided on the first insulating layer and located in the display area and the non-display area; a first light emitting element; and a second light emitting element, the second mounting electrode being arranged to surround a first mounting electrode of the plurality of first mounting electrodes and an other first mounting electrode of the plurality of first mounting electrodes, the first light emitting element being mounted across the one of the first mounting electrodes and the second mounting electrode, and including a first electrode electrically connected to the one of the first mounting electrodes and a second electrode electrically connected to the second mounting electrode, the second light emitting element being mounted across the other one of the first mounting electrodes and the second mounting electrode, and including a first electrode electrically connected to the other one of the first mounting electrodes and a second electrode electrically connected to the second mounting electrode, the first insulating layer including a second opening located in the non-display area, the second mounting electrode being electrically connected to the second wiring layer through the second opening, in the non-display area. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first insulating layer does not include an opening for connecting the second mounting electrode and the second wiring layer in the display area. ### Claim 3 (depends on 1) The display device of claim 1, wherein the plurality of first mounting electrodes and the second mounting electrode are provided in a same layer. ### Claim 4 (depends on 1) The display device of claim 1, wherein each of the first light emitting element and the second light emitting element is a light-emitting diode element including a semiconductor layer which includes a region containing a P-type impurity, a region containing an N-type impurity, and a emitting layer. ### Claim 5 (depends on 4) The display device of claim 4, wherein each of the first light emitting element and the second light emitting element further comprises a first electrode, an other first electrode, and a second electrode, the semiconductor layer of each of the first light emitting element and the second light emitting element further includes an other emitting layer, the emitting layer emits light by allowing a current to flow between the first electrode and the second electrode, and the other emitting layer emits light by allowing a current to flow between the other first electrode and the second electrode. ### Claim 6 (depends on 5) The display device of claim 5, wherein each of the first light emitting element and the second light emitting element is mounted across the pair of first mounting electrodes and a part of the second mounting electrode which is located between the pair of first mounting electrodes. ### Claim 7 (depends on 6) The display device of claim 6, wherein in each of the first light emitting element and the second light emitting element, the first electrode and the other first electrode are connected to the pair of first mounting electrodes in a one-to-one relationship, and the second electrode is connected to the part of the second mounting electrode. ### Claim 8 (depends on 4) The display device of claim 4, wherein the semiconductor layer contains GaN or GaAs. ### Claim 9 (depends on 1) The display device of claim 1, further comprising: a second insulating layer covering the plurality of first mounting electrodes and the second mounting electrode, and including a plurality of openings through which a part of an upper surface of each of the first mounting electrodes and a plurality of parts of an upper surface of the second mounting electrode are exposed. ### Claim 10 (depends on 1) The display device of claim 1, further comprising: a second insulating layer covering the plurality of first mounting electrodes and the second mounting electrode, and including a plurality of third openings and a plurality of fourth openings located in the display area, wherein a part of an upper surface of each of the first mounting electrodes is exposed to an outside of the second insulating layer through a corresponding third opening of the plurality of third openings, a plurality of parts of an upper surface of the second mounting electrode are exposed to the outside of the second insulating layer through the plurality of fourth openings, in the first light emitting element, the first electrode is electrically connected to one of the first mounting electrodes through a corresponding one of the third openings, and the second electrode is electrically connected to the second mounting electrode through a fourth opening of the plurality of fourth openings, and in the second light emitting element, the first electrode is electrically connected to the other one of the first mounting electrodes through the corresponding one of the third openings, and the second electrode is electrically connected to the second mounting electrode through the other fourth opening of the plurality of fourth openings. ### Claim 11 (depends on 1) The display device of claim 1, wherein the second mounting electrode includes a plurality of first portions extending in a first direction and spaced apart at intervals and arranged in a second direction intersecting the first direction, and a plurality of second portions extending in the second direction, spaced apart at intervals and arranged in the first direction and intersecting the plurality of first portions, and one or more first mounting electrodes, of the plurality of first mounting electrodes, are arranged in each of regions surrounded by a pair of first portions adjacent to each other and a pair of second portions adjacent to each other. ### Claim 12 (depends on 11) The display device of claim 11, wherein a first portion of the plurality of first portions is located between the one of first mounting electrodes and the other one of first mounting electrodes, and the second electrode of each of the first light emitting element and the second light emitting element is opposed to the one of the first portions.