# US 12,010,866 B2 · Display panel, including recess pattern in hole area, electronic apparatus including the same, and method for manufacturing display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,866 B2 - Document ID: US12010866B2 - Status: Granted - Kind: B2 - Application number: 17/256,826 - Filed: 2019-04-15 - Published: 2021-05-20 - Granted: 2024-06-11 - Earliest claimed: 2018-06-29 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hyoungsub Lee; Junghan Seo; Woo Yong Sung - Web page: https://patentgrep.com/patent/US12010866B2 ## CPC - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass - H10K 77/10: Substrates, e.g. flexible substrates - H10K 59/1201: {Manufacture or treatment} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - Y02E 10/549: Organic PV cells - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A display panel includes a base substrate, in which a hole area, an active area surrounding the hole area, and a peripheral area adjacent to the active area are defined, a circuit layer including a first circuit insulating layer on the base substrate, a second circuit insulating layer on the first circuit insulating layer, and a thin film transistor on the active area, a display layer including a first display insulating layer on the circuit layer, a second display insulating layer on the first display insulating layer, and a light emitting element on the active area and connected to the thin film transistor, a guide pattern on the circuit layer between the light emitting element and the groove part, and an encapsulation layer which covers the light emitting element and including first and second inorganic layers and an organic layer. The organic layer covers at least a portion of the guide pattern. ## Claims ### Claim 1 A display panel comprising: a base substrate including a front surface and a rear surface, wherein a hole area, an active area surrounding the hole area, and a peripheral area adjacent to the active area are defined in the base substrate, and a through-hole defined through the base substrate from the front surface to the rear surface and a groove part surrounding the through-hole and recessed from the front surface are defined in the hole area; a circuit layer comprising a first circuit insulating layer disposed on the base substrate, a second circuit insulating layer disposed on the first circuit insulating layer, and a thin film transistor disposed on the active area; a display layer comprising a first display insulating layer disposed on the circuit layer, a second display insulating layer disposed on the first display insulating layer, and a light emitting element disposed on the active area and connected to the thin film transistor; a guide pattern disposed on the circuit layer and disposed between the active area and the through-hole; and an encapsulation layer which covers the light emitting element, wherein the encapsulation layer comprises a first inorganic layer disposed on the active area and the hole area, a second inorganic layer disposed on the first inorganic layer, and an organic layer disposed between the first inorganic layer and the second inorganic layer, wherein the organic layer covers at least a portion of the guide pattern in a plan view. ### Claim 2 (depends on 1) The display panel of claim 1, wherein the guide pattern is a recess pattern defined in the first display insulating layer or the second display insulating layer. ### Claim 3 (depends on 2) The display panel of claim 2, wherein the guide pattern passes through the second display insulating layer and is recessed from a top surface of the first display insulating layer on a cross-section. ### Claim 4 (depends on 2) The display panel of claim 2, wherein the guide pattern is defined in the second display insulating layer and spaced apart from the first display insulating layer. ### Claim 5 (depends on 2) The display panel of claim 2, wherein the guide pattern comprises: a first guide pattern defined in the second display insulating layer and recessed from a top surface of the second display insulating layer; and a second guide pattern defined in the first display insulating layer and recessed from a top surface of the first display insulating layer, wherein the first guide pattern and the second guide pattern are spaced apart from each other when viewed on a plane. ### Claim 6 (depends on 1) The display panel of claim 1, wherein the guide pattern is a pattern disposed on the second circuit insulating layer and spaced apart from the first display insulating layer or the second display insulating layer when viewed on a plane. ### Claim 7 (depends on 6) The display panel of claim 6, wherein the guide pattern comprises the same material as the first display insulating layer or the second display insulating layer. ### Claim 8 (depends on 1) The display panel of claim 1, wherein the guide pattern comprises a plurality of island patterns spaced apart from each other when viewed on a plane. ### Claim 9 (depends on 8) The display panel of claim 8, wherein the island patterns are radially aligned from a center of the through-hole. ### Claim 10 (depends on 8) The display panel of claim 8, wherein the island patterns are randomly arranged. ### Claim 11 (depends on 1) The display panel of claim 1, wherein the guide pattern has a closed line shape surrounding the groove part when viewed on a plane. ### Claim 12 (depends on 11) The display panel of claim 11, wherein the closed line shape comprises at least one selected from a circle, an ellipse, and a polygonal shape. ### Claim 13 (depends on 1) The display panel of claim 1, wherein the groove part has an under-cut shape on a cross-section. ### Claim 14 (depends on 1) The display panel of claim 1, wherein the groove part comprises: a first groove part adjacent to the through-hole; and a second groove part disposed between the first groove part and the guide pattern to surround the first groove part, wherein each of an inner surface of the first groove part and an inner surface of the second groove part is covered by the first inorganic layer. ### Claim 15 (depends on 14) The display panel of claim 14, wherein, when viewed on a plane, the organic layer overlaps the second groove part and is spaced apart from the first groove part. ### Claim 16 (depends on 15) The display panel of claim 15, further comprising: a filling pattern disposed at the first groove part and spaced apart from the organic layer to be sealed by the first inorganic layer and the second inorganic layer, wherein the filling pattern comprises a same material as the organic layer. ### Claim 17 (depends on 14) The display panel of claim 14, wherein, when viewed on a plane, the organic layer overlaps the first groove part and the second groove part. ### Claim 18 (depends on 1) The display panel of claim 1, further comprising: a dam part disposed between the groove part and the through-hole to surround the groove part, wherein the first inorganic layer covers the dam part. ### Claim 19 An electronic apparatus comprising: a display panel, in which a through-hole and a groove pattern adjacent to the through-hole are defined, wherein the groove pattern defines a predetermined recessed space; and an electronic module which overlaps the through-hole when viewed on a plane, wherein the display panel comprises: a base substrate; a circuit layer comprising a first circuit insulating layer disposed on the base substrate, a second circuit insulating layer disposed on the first circuit insulating layer, and a thin film transistor disposed on an active area; a display layer comprising a first display insulating layer disposed on the circuit layer, a second display insulating layer disposed on the first display insulating layer, and a light emitting element disposed on the active area and connected to the thin film transistor; a recess pattern disposed between the electronic module and the active area in a plan view and defined in the first display insulating layer or the second display insulating layer; and an encapsulation layer which covers the light emitting element, wherein the encapsulation layer comprises a first inorganic layer disposed on the active area and the recess pattern, a second inorganic layer disposed on the first inorganic layer, and an organic layer disposed between the first inorganic layer and the second inorganic layer, wherein at least a portion of the recess pattern is filled with the organic layer. ### Claim 20 (depends on 19) The electronic apparatus of claim 19, wherein the recess pattern is recessed from a top surface of the second display insulating layer. ### Claim 21 (depends on 20) The electronic apparatus of claim 20, wherein the recess pattern passes through the second display insulating layer and extends up to the first display insulating layer. ### Claim 22 (depends on 19) The electronic apparatus of claim 19, wherein the recess pattern is recessed from a top surface of the first display insulating layer and spaced apart from the second display insulating layer when viewed on the plane. ### Claim 23 (depends on 19) The electronic apparatus of claim 19, wherein the recess pattern is provided in plurality, each of which has an island shape, and the plurality of recess patterns are radially arranged from a center of the through-hole. ### Claim 24 (depends on 19) The electronic apparatus of claim 19, wherein the recess pattern is provided in plurality, each of which has an island shape, and the plurality of recess patterns are randomly arranged. ### Claim 25 (depends on 24) The electronic apparatus of claim 24, wherein the display panel further comprises a dam part disposed adjacent to the through-hole, the groove pattern comprises: a first groove pattern disposed between the through-hole and the dam part; and a second groove pattern disposed between the dam part and the recess pattern to surround the first groove pattern, and the second groove pattern is filled with the organic layer. ### Claim 26 (depends on 19) The electronic apparatus of claim 19, wherein the recess pattern has a closed line shape which surrounds the through-hole.