# US 2023/0057723 A1 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0057723 A1 - Document ID: US20230057723A1 - Status: Published application - Kind: A1 - Application number: 17/757,448 - Filed: 2020-12-11 - Published: 2023-02-23 - Earliest claimed: 2019-12-16 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Xin Xing LI; Hee Keun LEE; Chang Il TAE - Web page: https://patentgrep.com/patent/US20230057723A1 ## CPC - H10H 20/831: characterised by their shape - H10W 20/01: {Manufacture or treatment} - H10W 90/00: Package configurations - H10H 20/819: characterised by their shape, e.g. curved or truncated substrates - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - 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 A display apparatus includes: a substrate including a plurality of pixels; an electrode unit in each of the pixels of the substrate and including: a first electrode having a first outer side having a center of curvature and a curved shape; and a second electrode having a second outer side having a curved shape corresponding to the first outer side and spaced apart from and facing the first electrode; and a plurality of light-emitting elements between the first electrode and the second electrode. The center of curvature of the first electrode is on a peripheral portion of the pixel, and the first outer side of the first electrode faces a center of the pixel. ## Claims ### Claim at position 1 1-20. (canceled) ### Claim 21 A display apparatus comprising: a substrate comprising a plurality of pixels; an electrode unit in each of the pixels of the substrate and comprising: a first electrode having a first outer side having a center of curvature and a curved shape; and a second electrode having a second outer side having a curved shape corresponding to the first outer side and spaced apart from and facing the first electrode; and a plurality of light-emitting elements between the first electrode and the second electrode, wherein the center of curvature of the first electrode is on a peripheral portion of the pixel, and the first outer side of the first electrode faces a center of the pixel. ### Claim 22 (depends on 21) The display apparatus of claim 21, wherein the electrode unit comprises a first type electrode unit in which the first electrode has a first short side extending in a first direction, a second short side extending in a second direction crossing the first direction with one end thereof connected to one end of the first short side, wherein the first outer side of the first electrode extends between the other end of the first short side and the other end of the second short side, and wherein, in the first electrode of the first type electrode unit, the center of curvature of the first outer side is the one end of the first short side. ### Claim 23 (depends on 22) The display apparatus of claim 22, wherein the second electrode has a third outer side having a curved shape corresponding to the second outer side, a third short side extending in the first direction and connecting one end of the second outer side and one end of the third outer side, and a fourth short side extending in the second direction and connecting the other end of the second outer side and the other end of the third outer side. ### Claim 24 (depends on 23) The display apparatus of claim 23, wherein the electrode unit comprises a first electrode unit in which the center of curvature of the first outer side is on one side of the pixel and a second electrode unit in which the center of curvature of the first outer side is on the other side of the pixel. ### Claim 25 (depends on 24) The display apparatus of claim 24, wherein the second electrode of the first electrode unit is directly connected to the second electrode of the second electrode unit. ### Claim 26 (depends on 24) The display apparatus of claim 24, further comprising a bridge electrode in the pixel, the bridge electrode having one end connected to the first electrode of the first electrode unit and the other end connected to the second electrode of the second electrode unit. ### Claim 27 (depends on 23) The display apparatus of claim 23, wherein the second electrode has an electrode protrusion in which a portion of the third outer side protrudes. ### Claim 28 (depends on 22) The display apparatus of claim 22, wherein the electrode unit further comprises a third electrode between the first electrode and the second electrode and a fourth electrode between the third electrode and the first electrode, wherein the third electrode has a curved shape corresponding to the second outer side of the second electrode, and wherein the fourth electrode has a curved shape corresponding to the first outer side of the first electrode. ### Claim 29 (depends on 28) The display apparatus of claim 28, wherein the third electrode and the fourth electrode are spaced apart from each other and face each other, and wherein each of the light-emitting elements is between the third electrode and the fourth electrode. ### Claim 30 (depends on 28) The display apparatus of claim 28, further comprising: a first floating pattern having a shape extending in the first direction and having a portion spaced apart from the first short side of the first electrode and the third electrode in the second direction; and a second floating pattern having a shape extending in the second direction and having a portion spaced apart from a fourth short side of the second electrode and the fourth electrode in the first direction. ### Claim 31 (depends on 22) The display apparatus of claim 22, wherein the electrode unit comprises a second type electrode unit in which the first electrode has a fifth short side extending in the first direction, and the first outer side extends between both ends of the fifth short side, wherein, in the first electrode of the second type electrode unit, the center of curvature of the first outer side is between both ends of the fifth short side. ### Claim 32 (depends on 22) The display apparatus of claim 22, wherein the electrode unit further comprises a third type electrode unit in which the first electrode has a circular shape. ### Claim 33 (depends on 21) The display apparatus of claim 21, further comprising: a first contact electrode on the first electrode and having a side curved along the first outer side; and a second contact electrode on the second electrode and having a side curved along the second outer side, wherein the first contact electrode is in contact with the first electrode and one end of at least one of the light-emitting elements, and wherein the second contact electrode is in contact with the second electrode and the other end of the at least of the light-emitting elements. ### Claim 34 (depends on 33) The display apparatus of claim 33, wherein a first separation distance between the first outer side of the first electrode and the second outer side of the second electrode is less than a second separation distance between the first contact electrode and the second contact electrode. ### Claim 35 A display apparatus comprising: a plurality of first electrodes each having a first short side and a second short side that extend in directions crossing each other and have ends connected to each other, and a first outer side having a curved shape and extending between the other ends of the first short side and the second short side; a plurality of second electrodes, each of which is spaced apart from and faces the first outer side of the first electrode and has a second outer side having a curved shape corresponding to the first outer side; and a plurality of light-emitting elements between the first electrodes and the second electrodes, wherein the plurality of light-emitting elements are between the first outer side and the second outer side and arranged along a curvature of the first outer side. ### Claim 36 (depends on 35) The display apparatus of claim 35, further comprising a third electrode between the first electrode and the second electrode and a fourth electrode between the third electrode and the first electrode, wherein the third electrode has a curved shape corresponding to the second outer side of the second electrode, and wherein the fourth electrode has a curved shape corresponding to the first outer side of the first electrode. ### Claim 37 (depends on 36) The display apparatus of claim 36, further comprising: a first contact electrode on the first electrode and having a side curved along the first outer side; and a second contact electrode on the second electrode and having a side curved along the second outer side. ### Claim 38 (depends on 36) The display apparatus of claim 36, wherein the first outer side and the second outer side have the same center of curvature, wherein at least some of the plurality of first electrodes have different centers of curvature, and wherein at least some of the plurality of second electrodes have different centers of curvature. ### Claim 39 (depends on 38) The display apparatus of claim 38, wherein at least some of the second electrodes having different centers of curvature are directly connected to each other. ### Claim 40 (depends on 38) The display apparatus of claim 38, further comprising a bridge electrode connecting the first electrode and the second electrode, the second electrode having a center of curvature different from that of the first electrode.