# US 12,183,855 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 12,183,855 B2 - Document ID: US12183855B2 - Status: Granted - Kind: B2 - Application number: 18/440,459 - Filed: 2024-02-13 - Published: 2024-06-06 - Granted: 2024-12-31 - Earliest claimed: 2020-05-26 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Hyun Wook Lee; Ki Bum Kim; Jin Taek Kim; Jung Eun Hong - Web page: https://patentgrep.com/patent/US12183855B2 ## CPC - H10H 20/8316: {Multi-layer electrodes comprising at least one discontinuous layer} - H10W 90/00: Package configurations - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - H10H 20/818: within the light-emitting regions - H10H 20/8314: {extending at least partially onto an outer side surface of the bodies} - 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 device includes a substrate, a first electrode and a second electrode which are spaced apart from each other in a second direction, light-emitting elements spaced apart from each other in the first direction, a first contact electrode electrically contacting the light-emitting elements, and a second contact electrode electrically contacting the light-emitting elements. The first contact electrode electrically contacts the first electrode through a first contact portion disposed on the first electrode, the second contact electrode electrically contacts the second electrode through a second contact portion disposed on the second electrode, the first contact portion is disposed on an end portion in the first direction of the first contact electrode, and the second contact portion is disposed on an end portion in the first direction of the second contact electrode. ## Claims ### Claim 1 A display device comprising: a substrate; a first electrode and a second electrode which are disposed on the substrate, extend in a first direction, and are spaced apart from each other in a second direction; a third electrode spaced apart from the first electrode and the second electrode in the second direction between the first electrode and the second electrode; a fourth electrode spaced apart from the first electrode in the first direction; light-emitting elements which include: first light-emitting elements having first and second end portions disposed on the first electrode and the third electrode, respectively; and second light-emitting elements having first end portions disposed on the second electrode; a first contact electrode disposed on the first electrode and electrically contacting the first light-emitting elements; a second contact electrode disposed on the second electrode and electrically contacting the second light-emitting elements; and a third contact electrode disposed on the third electrode and electrically contacting the first light-emitting elements, wherein the first contact electrode electrically contacts the first electrode through a first contact portion disposed on the first electrode, the second contact electrode electrically contacts the second electrode through a second contact portion disposed on the second electrode, the third contact electrode electrically contacts the third electrode through a third contact portion disposed on the third electrode, the second contact portion is disposed on an end portion of the second contact electrode in the first direction, and the third contact portion is disposed on an end portion of the third contact electrode in the first direction. ### Claim 2 (depends on 1) The display device of claim 1, wherein the second electrode includes an electrode protrusion protruding from a side of the second electrode in the second direction, the third electrode includes an electrode protrusion protruding from a side of the third electrode in the second direction, and the second contact portion and the third contact portion are disposed on the electrode protrusion of the second electrode and the electrode protrusion of the third electrode, respectively. ### Claim 3 (depends on 1) The display device of claim 1, wherein the first electrode includes: a first electrode extension part extending in the first direction; and an electrode connection part electrically connected to a side of the first electrode extension part in the first direction and extending in the second direction, and the first light-emitting elements are disposed on the first electrode extension part of the first electrode and the third electrode. ### Claim 4 (depends on 3) The display device of claim 3, wherein the first contact portion is disposed on the electrode connection part of the first electrode, and the first contact electrode includes: a contact electrode extension part electrically contacting the first light-emitting elements; and a contact electrode contact part electrically connected to the contact electrode extension part and disposed on the first contact portion. ### Claim 5 (depends on 1) The display device of claim 1, further comprising a conductive layer including a voltage line and a conductive pattern disposed on the substrate, wherein the first electrode is connected directly to the conductive pattern, and the second electrode is connected directly to the voltage line. ### Claim 6 (depends on 1) The display device of claim 1, further comprising: a fifth electrode spaced apart from the fourth electrode in the second direction and spaced apart from the third electrode in the first direction; a sixth electrode spaced apart from the fifth electrode in the second direction; a seventh electrode disposed between the fifth electrode and the sixth electrode and spaced apart from the second electrode in the first direction; and an eighth electrode spaced apart from the sixth electrode in the first direction and spaced apart from the second electrode in the second direction, wherein the light-emitting elements include: third light-emitting elements disposed on the fourth electrode and the fifth electrode; and fourth light-emitting elements disposed on the sixth electrode and the seventh electrode, and second end portions of the second light-emitting elements are disposed on the eighth electrode. ### Claim 7 (depends on 6) The display device of claim 6, wherein the third contact electrode includes a part disposed on the fourth electrode and electrically contacting the third light-emitting elements, and the third contact electrode electrically contacts the fourth electrode through a contact portion spaced apart from the third light-emitting elements in a direction between the first direction and the second direction. ### Claim 8 (depends on 6) The display device of claim 6, further comprising: a fourth contact electrode disposed on the fifth electrode and the sixth electrode and electrically contacting the fifth electrode and the sixth electrode through a plurality of contact portions; and a fifth contact electrode disposed on the seventh electrode and the eighth electrode and electrically contacting the seventh electrode and the eighth electrode through a plurality of contact portions, wherein some of the plurality of contact portions disposed on the fifth to the eighth electrodes are spaced apart from the light-emitting elements in the first direction. ### Claim 9 (depends on 8) The display device of claim 8, wherein at least some of the plurality of contact portions disposed on the fifth to eighth electrodes are disposed to be spaced apart from the light-emitting elements in a direction between the first direction and the second direction. ### Claim 10 (depends on 1) The display device of claim 1, wherein the first contact portion is spaced apart from the light-emitting elements in a direction between the first direction and the second direction. ### Claim 11 (depends on 8) The display device of claim 8, further comprising: a first insulating layer that partially overlaps the first to eighth electrodes; a second insulating layer partially disposed on the light-emitting elements and the first insulating layer; and a third insulating layer that overlaps the second insulating layer, the third contact electrode, and the fourth contact electrode, wherein the plurality of contact portions penetrate through the first insulating layer. ### Claim 12 (depends on 11) The display device of claim 11, further comprising a plurality of openings that penetrate through the second insulating layer and the third insulating layer to expose a portion of an upper surface of the first insulating layer, wherein the plurality of openings include: a first opening formed over a portion of the first electrode and the first end portions of the first light-emitting elements; a second opening formed over a portion of the second electrode and the first end portions of the second light-emitting elements; and a third opening partially formed on the eighth electrode. ### Claim 13 (depends on 12) The display device of claim 12, wherein the first contact electrode is partially disposed in the first opening, the second contact electrode is partially disposed in the second opening, and the third opening is formed to be spaced from the fifth contact electrode.