# US 12,218,278 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 12,218,278 B2 - Document ID: US12218278B2 - Status: Granted - Kind: B2 - Application number: 17/444,460 - Filed: 2021-08-04 - Published: 2022-05-19 - Granted: 2025-02-04 - Earliest claimed: 2020-11-19 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Mun Soo Park; Dong Woo Kim; Jong Hwan Park - Web page: https://patentgrep.com/patent/US12218278B2 ## CPC - H10H 20/831: characterised by their shape - H10W 90/00: Package configurations - H10H 20/821: of the light-emitting regions, e.g. non-planar junctions - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0814: used for selection purposes, e.g. logical AND for partial update - G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor - G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes - H10H 20/819: characterised by their shape, e.g. curved or truncated substrates - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - 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 Some embodiments of the present disclosure provide a display device including a base layer, a first electrode and a second electrode extending along a first direction on the base layer, and spaced apart from each other in a second direction crossing the first direction, and light emitting elements at least partially overlapping the first electrode and at least partially overlapping the second electrode, wherein at least one of the first electrode and the second electrode includes a concavo-convex portion in which at least a portion of one of the light emitting elements overlaps with respect to a third direction that is perpendicular to the first direction and to the second direction. ## Claims ### Claim 1 A display device comprising: a base layer; a first electrode and a second electrode extending along a first direction on the base layer, and spaced apart from each other in a second direction crossing the first direction; and light emitting elements at least partially overlapping the first electrode and at least partially overlapping the second electrode, wherein at least one of the first electrode and the second electrode comprises a concavo-convex portion in which at least a portion of one of the light emitting elements overlaps with respect to a third direction that is perpendicular to the first direction and to the second direction, the concavo-convex portion comprising concave portions extending along the second direction, and convex portions extending along the second direction, and adjacent to respective ones of the concave portions in the first direction. ### Claim 2 (depends on 1) The display device of claim 1, wherein the concavo-convex portion comprises concave portions and convex portions. ### Claim 3 (depends on 2) The display device of claim 2, wherein the concave portions and the convex portions are alternately arranged along the first direction. ### Claim 4 (depends on 3) The display device of claim 3, wherein the portion of the one of the light emitting elements is located between two adjacent convex portions of the first electrode or two adjacent convex portions of the second electrode. ### Claim 5 (depends on 1) The display device of claim 1, wherein the one of the light emitting elements comprises a first end portion that at least partially overlaps the first electrode to be electrically connected to the first electrode, and a second end portion that at least partially overlaps the second electrode to be electrically connected with the second electrode. ### Claim 6 (depends on 5) The display device of claim 5, wherein the concavo-convex portion at least partially overlaps the first end portion or the second end portion of the one of the light emitting elements. ### Claim 7 (depends on 1) The display device of claim 1, wherein the concavo-convex portion comprises at least one flat portion positioned between two adjacent ones of the convex portions. ### Claim 8 (depends on 7) The display device of claim 7, wherein the convex portions and the at least one flat portion are alternately arranged along the first direction. ### Claim 9 (depends on 7) The display device of claim 7, wherein at least one light emitting element of the light emitting elements is located on the at least one flat portion. ### Claim 10 (depends on 9) The display device of claim 9, wherein the one of the light emitting elements comprises a first end portion that at least partially overlaps the first electrode to be electrically connected to the first electrode, and a second end portion that at least partially overlaps the second electrode to be electrically connected with the second electrode, and wherein the flat portion at least partially overlaps the first end portion or the second end portion of the one of the light emitting elements.