# US 12,183,769 B2 · Display device and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,183,769 B2 - Document ID: US12183769B2 - Status: Granted - Kind: B2 - Application number: 17/373,346 - Filed: 2021-07-12 - Published: 2022-02-17 - Granted: 2024-12-31 - Earliest claimed: 2020-08-12 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Mi Jin Park; Jin Sun Kim; Jin Yeong Kim; Sang Ho Park; Keun Kyu Song; Woo Guen Jang - Web page: https://patentgrep.com/patent/US12183769B2 ## CPC - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - H10W 90/00: Package configurations - H10H 20/01: Manufacture or treatment - H10H 20/062: {Light-emitting semiconductor devices having field effect type light-emitting regions, e.g. light-emitting High-Electron Mobility Transistors} - H10H 20/8312: {extending at least partially through the bodies} - H10H 20/8316: {Multi-layer electrodes comprising at least one discontinuous layer} - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10K 59/70: OLEDs integrated with inorganic light-emitting elements, e.g. with inorganic electroluminescent elements - H10H 20/032: {of electrodes} - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device and a method of manufacturing the same are provided. A display device includes: a substrate including a plurality of pixels; a first electrode and a second electrode spaced apart from each other on the substrate; a light emitting element located between the first electrode and the second electrode; and a conductive pattern on the light emitting element. The light emitting element includes a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, and the conductive pattern overlaps the active layer and does not overlap the first semiconductor layer or the second semiconductor layer. ## Claims ### Claim 1 A display device comprising: a substrate comprising a plurality of pixels; a first electrode and a second electrode spaced apart from each other on the substrate; a light emitting element located between the first electrode and the second electrode; and a conductive pattern on the light emitting element, wherein the light emitting element comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, the conductive pattern overlaps the active layer and does not overlap the first semiconductor layer or the second semiconductor layer, and the conductive pattern and the first semiconductor layer comprise a first dopant, and the conductive pattern and the second semiconductor layer comprise a second dopant different from the first dopant. ### Claim 2 (depends on 1) The display device according to claim 1, further comprising: an insulating pattern between the light emitting element and the conductive pattern, wherein the insulating pattern partially exposes the first semiconductor layer and the second semiconductor layer. ### Claim 3 (depends on 1) The display device according to claim 1, further comprising: a first contact electrode electrically connected to the first electrode and the first semiconductor layer; and a second contact electrode electrically connected to the second electrode and the second semiconductor layer. ### Claim 4 (depends on 3) The display device according to claim 3, wherein the first contact electrode and the second contact electrode are on the conductive pattern. ### Claim 5 (depends on 4) The display device according to claim 4, wherein the first contact electrode does not overlap the second semiconductor layer. ### Claim 6 (depends on 3) The display device according to claim 3, further comprising: an insulating layer between the first contact electrode and the second contact electrode, wherein the insulating layer covers the conductive pattern. ### Claim 7 (depends on 3) The display device according to claim 3, further comprising: an insulating layer covering the first contact electrode and the second contact electrode; and a plurality of transistors on the insulating layer and electrically connected to the plurality of pixels, wherein the transistors are electrically connected to the first electrode or the second electrode through a contact hole passing through the insulating layer. ### Claim 8 (depends on 1) The display device according to claim 1, wherein a width of the conductive pattern in a first direction is less than a width of the light emitting element in the first direction. ### Claim 9 (depends on 1) The display device according to claim 1, wherein a width of the conductive pattern in a first direction is the same as a width of the active layer in the first direction. ### Claim 10 (depends on 1) The display device according to claim 1, further comprising an insulating layer between the first electrode and the second electrode and the conductive pattern. ### Claim 11 A display device comprising: a substrate comprising a plurality of pixels; a first electrode and a second electrode spaced apart from each other on the substrate; a light emitting element located between the first electrode and the second electrode; a conductive pattern on the light emitting element; a first contact electrode electrically connected to the first electrode and the first semiconductor layer; and a second contact electrode electrically connected to the second electrode and the second semiconductor layer, wherein the light emitting element comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, and the conductive pattern overlaps the active layer and does not overlap the first semiconductor layer or the second semiconductor layer, wherein the first contact electrode and the second contact electrode are on the conductive pattern, and wherein the first contact electrode is between the conductive pattern and the second contact electrode. ### Claim 12 A display device comprising: a substrate comprising a plurality of pixels; a first electrode and a second electrode spaced apart from each other on the substrate; a light emitting element located between the first electrode and the second electrode; a conductive pattern on the light emitting element; and an insulating layer between the first electrode and the second electrode and the conductive pattern, wherein the light emitting element comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, and the conductive pattern overlaps the active layer and does not overlap the first semiconductor layer or the second semiconductor layer, wherein the display device comprises a first region overlapping the first semiconductor layer and a second region overlapping the second semiconductor layer, and the insulating layer in the first region comprises a first dopant. ### Claim 13 (depends on 12) The display device according to claim 12, wherein the first semiconductor layer comprises the first dopant. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the conductive pattern comprises the first dopant. ### Claim 15 (depends on 12) The display device according to claim 12, wherein the insulating layer in the second region comprises a second dopant different from the first dopant. ### Claim 16 (depends on 15) The display device according to claim 15, wherein the second semiconductor layer comprises the second dopant. ### Claim 17 (depends on 16) The display device according to claim 16, wherein the conductive pattern comprises the second dopant. ### Claim 18 A method of manufacturing a display device, the method comprising: providing an active pattern between a first electrode and a second electrode that are spaced apart from each other; and forming a light emitting element by doping a dopant region of the active pattern, wherein forming the light emitting element comprises: providing a conductive material layer exposing a first dopant region of the active pattern; forming a first semiconductor layer by doping a first dopant in the first dopant region; forming a conductive pattern exposing a second dopant region of the active pattern by patterning the conductive material layer; and forming a second semiconductor layer by doping a second dopant different from the first dopant in the second dopant region. ### Claim 19 (depends on 18) The method according to claim 18, further comprising forming a first contact electrode on the first semiconductor layer. ### Claim 20 (depends on 19) The method according to claim 19, wherein the first contact electrode exposes the second dopant region. ### Claim 21 (depends on 19) The method according to claim 19, further comprising forming an insulating layer covering the first contact electrode and the conductive pattern. ### Claim 22 (depends on 21) The method according to claim 21, further comprising forming a second contact electrode on the second semiconductor layer. ### Claim 23 (depends on 18) The method according to claim 18, wherein the conductive material layer covers the second dopant region. ### Claim 24 (depends on 18) The method according to claim 18, wherein the active pattern comprises an active layer between the first dopant region and the second dopant region. ### Claim 25 (depends on 24) The method according to claim 24, wherein the conductive pattern is formed to overlap the active layer.