# US 11,910,696 B2 · Self-luminous display panel and self-luminous display panel manufacturing method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,696 B2 - Document ID: US11910696B2 - Status: Granted - Kind: B2 - Application number: 17/521,896 - Filed: 2021-11-09 - Published: 2022-05-12 - Granted: 2024-02-20 - Earliest claimed: 2020-11-09 - Assignees: Jdi Design and Development G.K. - Applicants: JDI Design and Development G.K. - Inventors: Akio Miyajima; Michitoshi Tsuchiya; Hiroki Kato; Makoto Noda; Masaichi Okubo; Mario Amatsuchi - Web page: https://patentgrep.com/patent/US11910696B2 ## CPC - H10K 59/1201: {Manufacture or treatment} - H10K 71/861: {Repairing} - H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels} - H10K 59/87: {Passivation; Containers; Encapsulations} - H10K 2102/351: {Thickness} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A self-luminous display panel 10 in which self-luminous elements 2 are arranged on a plane, wherein each of the self-luminous elements includes: a pair of electrodes 13, 20 disposed facing each other, an electrode of the pair of electrodes including a metal layer 20A; functional layers 15, 16, 17, 18, 19 including a light emitting layer 17, disposed between the pair of electrodes; and a sealing layer 21 that covers the pair of electrodes and the functional layers from a direction. The self-luminous elements include a repaired self-luminous element 2′. The repaired self-luminous element includes a foreign object FO among the functional layers. The electrode including the metal layer has a high resistance portion 201 surrounding, in plan view, an area containing the foreign object, and has a thickened portion 202 of the metal layer at an outer edge, in plan view, of the high resistance portion. ## Claims ### Claim 1 A self-luminous display panel in which self-luminous elements are arranged on a plane, wherein each of the self-luminous elements comprises: a pair of electrodes disposed facing each other, an electrode of the pair of electrodes including a metal layer; functional layers including a light emitting layer, disposed between the pair of electrodes; and a sealing layer that covers the pair of electrodes and the functional layers from a direction, wherein the self-luminous elements include a repaired self-luminous element, and the repaired self-luminous element further comprises: a foreign object among the functional layers, wherein the electrode including the metal layer has a high resistance portion surrounding, in plan view, an area containing the foreign object, and has a thickened portion of the metal layer at an outer edge, in plan view, of the high resistance portion. ### Claim 2 (depends on 1) The self-luminous display panel of claim 1, wherein the high resistance portion is a ring-shaped portion of the electrode including the metal layer that surrounds the foreign object in plan view. ### Claim 3 (depends on 1) The self-luminous display panel of claim 1, wherein a thickness of the thickened portion of the metal layer decreases as distance from the high resistance portion increases in plan view. ### Claim 4 (depends on 1) The self-luminous display panel of claim 1, wherein the electrode including the metal layer further includes a layer made of a metal oxide. ### Claim 5 A self-luminous display panel in which self-luminous elements are arranged on a plane, wherein each of the self-luminous elements comprises: a pair of electrodes disposed facing each other, an electrode of the pair of electrodes including a metal layer; functional layers including a light emitting layer, disposed between the pair of electrodes; and a sealing layer that covers the pair of electrodes and the functional layers from a direction, wherein the self-luminous elements include a repaired self-luminous element, the repaired self-luminous element further comprises: a foreign object among the functional layers, wherein the electrode including the metal layer has a high resistance portion that is a portion of the electrode including the metal layer that contains the foreign object, in plan view, and has a thickened portion of the metal layer at an outer edge, in plan view, of the high resistance portion. ### Claim 6 (depends on 5) The self-luminous display panel of claim 5, wherein the high resistance portion is a portion of the electrode including the metal layer that is disposed above the foreign object. ### Claim 7 (depends on 5) The self-luminous display panel of claim 5, wherein a thickness of the thickened portion of the metal layer decreases as distance from the resistance portion increases in plan view. ### Claim 8 (depends on 5) The self-luminous display panel of claim 5, wherein the electrode including the metal layer further includes a metal oxide layer. ### Claim 9 A method of manufacturing a self-luminous display panel in which self-luminous elements are arranged on a plane, comprising: a process of forming the self-luminous elements on a substrate surface; a process of driving the self-luminous elements to detect an abnormal self-luminous element; and a process of repairing the abnormal self-luminous element, wherein the process of forming the self-luminous elements comprises: a sub-process of forming a pair of electrodes disposed facing each other, an electrode of the pair of electrodes including a metal layer; a sub-process of forming functional layers including a light emitting layer disposed between the pair of electrodes; and a sub-process of forming a sealing layer that covers the pair of electrodes and the functional layers, wherein the process of repairing the abnormal self-luminous element comprises: a process of detecting a position of a foreign object in the abnormal self-luminous element; and a process of forming a high resistance portion in the electrode including the metal layer in the abnormal self-luminous element, where the high resistance portion, in plan view, surrounds an area containing the foreign object, wherein in the process of forming the high resistance portion, a thickened portion of the metal layer close to an outer edge of the high resistance portion is formed. ### Claim 10 (depends on 9) The method of manufacturing the self-luminous display panel of claim 9, wherein in the process of forming the high resistance portion, a ring-shaped portion of the electrode including the metal layer that surrounds the foreign object in plan view is irradiated by a laser having a picosecond pulse width. ### Claim 11 (depends on 9) The method of manufacturing the self-luminous display panel of claim 9, wherein in the process of forming the high resistance portion, the thickened portion is formed by metal in the metal layer being melted by irradiation by a laser having a picosecond pulse width and a portion of the metal layer moving. ### Claim 12 (depends on 9) The method of manufacturing the self-luminous display panel of claim 9, wherein the electrode including the metal layer further includes a metal oxide layer. ### Claim 13 A method of manufacturing a self-luminous display panel in which self-luminous elements are arranged on a plane, the method comprising: a process of forming the self-luminous elements on a substrate surface; a process of driving the self-luminous elements to detect an abnormal self-luminous element; and a process of repairing the abnormal self-luminous element, wherein the process of forming the self luminous elements comprises: a sub-process of forming a pair of electrodes disposed facing each other, an electrode of the pair of electrodes including a metal layer; a sub-process of forming functional layers including a light emitting layer disposed between the pair of electrodes; and a sub-process of forming a sealing layer that covers the pair of electrodes and the functional layers, wherein the process of repairing the abnormal self-luminous element comprises: a process of detecting a position of a foreign object in the abnormal self-luminous element; and a process of forming a high resistance portion in the electrode including the metal layer in the abnormal self-luminous element, where the high resistance portion, in plan view, contains an area containing the foreign object, wherein in the process of forming the high resistance portion, a thickened portion of the metal layer close to an outer edge of the high resistance portion is formed. ### Claim 14 (depends on 13) The method of manufacturing the self-luminous display panel of claim 13, wherein in the process of forming the high resistance portion, the portion of the electrode including the metal layer that contains the foreign object in plan view is irradiated by a laser having a picosecond pulse width. ### Claim 15 (depends on 13) The method of manufacturing the self-luminous display panel of claim 13, wherein in the process of forming the high resistance portion, the thickened portion is formed by metal in the metal layer being melted by irradiation by a laser having a picosecond pulse width and a portion of the metal layer moving. ### Claim 16 (depends on 13) The method of manufacturing the self-luminous display panel of claim 13, wherein the electrode including the metal layer further includes a metal oxide layer.