# US 2025/0098474 A1 · Display apparatus 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 2025/0098474 A1 - Document ID: US20250098474A1 - Status: Published application - Kind: A1 - Application number: 18/815,075 - Filed: 2024-08-26 - Published: 2025-03-20 - Earliest claimed: 2023-09-19 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Sunkyu Joo; Keunchan Oh; Taehyung Hwang - Web page: https://patentgrep.com/patent/US20250098474A1 ## CPC - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/1201: {Manufacture or treatment} - H10K 59/8723: {Vertical spacers, e.g. arranged between the sealing arrangement and the OLED} - H10K 59/877: {comprising scattering means} - H10K 2102/331: {Nanoparticles used in non-emissive layers, e.g. in packaging layer} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display apparatus includes a first partition wall disposed on a substrate, a first color quantum dot layer spaced apart from the first partition wall in a first direction, a second partition wall disposed between the first partition wall and the first color quantum dot layer, a light-transmissive layer disposed between the first partition wall and the second partition wall, a second color quantum dot layer disposed between the second partition wall and the first color quantum dot layer, and a metal layer disposed on respective upper surfaces and respective lateral surfaces of the first partition wall and the second partition wall and a lateral surface of the first color quantum dot layer. The first partition wall, the second partition wall, and the first color quantum dot layer each include a same material. ## Claims ### Claim 1 A display apparatus comprising: a first partition wall disposed on a substrate; a first color quantum dot layer spaced apart from the first partition wall in a first direction; a second partition wall disposed between the first partition wall and the first color quantum dot layer; a light-transmissive layer disposed between the first partition wall and the second partition wall; a second color quantum dot layer disposed between the second partition wall and the first color quantum dot layer; and a metal layer disposed on respective upper surfaces and respective lateral surfaces of the first partition wall and the second partition wall and a lateral surface of the first color quantum dot layer, wherein the first partition wall, the second partition wall, and the first color quantum dot layer each include a same material. ### Claim 2 (depends on 1) The display apparatus of claim 1, wherein the light-transmissive layer includes scattering particles. ### Claim 3 (depends on 1) The display apparatus of claim 1, further comprising: a first protective layer disposed below the metal layer. ### Claim 4 (depends on 3) The display apparatus of claim 3, wherein the metal layer is not disposed on at least a portion of the first protective layer disposed between the first partition wall and the second partition wall, at least a portion of the first protective layer disposed between the second partition wall and the first color quantum dot layer, and at least a portion of an upper surface of the first color quantum dot layer. ### Claim 5 (depends on 1) The display apparatus of claim 1, further comprising: a spacer disposed on at least a portion of the first color quantum dot layer. ### Claim 6 (depends on 5) The display apparatus of claim 5, wherein the spacer and the light-transmissive layer include a same material. ### Claim 7 (depends on 6) The display apparatus of claim 6, wherein the spacer and the second color quantum dot layer include a same material. ### Claim 8 (depends on 6) The display apparatus of claim 6, further comprising: a second protective layer disposed on the light-transmissive layer, the second color quantum dot layer, and the spacer. ### Claim 9 A display apparatus comprising: a first partition wall disposed on a substrate; a light transmissive layer spaced apart from the first partition wall in a first direction; a second partition wall disposed between the first partition wall and the light transmissive layer; a first color quantum dot layer disposed between the first partition wall and the second partition wall; a second color quantum dot layer disposed between the second partition wall and the light transmissive layer; and a metal layer disposed on respective upper surfaces and respective lateral surfaces of the first partition wall and the second partition wall and a lateral surface of the light transmissive layer, wherein the first partition wall and the second partition wall and the light transmissive layer include a same material. ### Claim 10 (depends on 9) The display apparatus of claim 9, further comprising: a first protective layer disposed below the metal layer. ### Claim 11 (depends on 9) The display apparatus of claim 9, further comprising: a spacer disposed on at least a portion of the light transmissive layer. ### Claim 12 (depends on 11) The display apparatus of claim 11, wherein the spacer and the first color quantum dot layer include a same material. ### Claim 13 (depends on 11) The display apparatus of claim 11, wherein the spacer and the second color quantum dot layer include a same material. ### Claim 14 A method of manufacturing a display apparatus, the method comprising: forming a first partition wall, a second partition wall, and a first color quantum dot layer on a substrate; forming a first protective layer on the first partition wall, the second partition wall, and the first color quantum dot layer; forming a metal layer disposed on respective upper surfaces and respective lateral surfaces of the first partition wall and the second partition wall and a lateral surface of the first color quantum dot layer; forming a light transmissive layer disposed between the first partition wall and the second partition wall; forming a spacer disposed on at least a portion of the first color quantum dot layer; and forming a second color quantum dot layer disposed between the second partition wall and the first color quantum dot layer, wherein the light transmissive layer and the spacer are formed simultaneously. ### Claim 15 (depends on 14) The method of claim 14, wherein the light transmissive layer includes scattering particles. ### Claim 16 (depends on 14) The method of claim 14, wherein the spacer and the light transmissive layer include a same material. ### Claim 17 (depends on 14) The method of claim 14, wherein the metal layer is not disposed on at least a portion of the first protective layer disposed between the first partition wall and the second partition wall, at least a portion of the first protective layer disposed between the second partition wall and the first color quantum dot layer, and at least a portion of an upper surface of the first color quantum dot layer. ### Claim 18 (depends on 14) The method of claim 14, wherein the forming of the first partition wall, the second partition wall, and the first color quantum dot layer on the substrate comprises: disposing, on the substrate, a first color quantum dot layer forming material; disposing a first photoresist on at least a portion of the first color quantum dot layer forming material; forming the first partition wall, the second partition wall, and the first color quantum dot layer by removing at least a portion of the first color quantum dot layer forming material from an upper surface where the first photoresist is not disposed; and removing the first photoresist. ### Claim 19 (depends on 14) The method of claim 14, wherein the forming of the metal layer disposed on the respective upper surfaces and the respective lateral surfaces of the first partition wall and the second partition wall and the lateral surface of the first color quantum dot layer comprises: continuously disposing a metal layer forming material on the first protective layer; disposing a second photoresist on at least a portion of the metal layer forming material; and forming a metal layer by removing at least a portion of the metal layer forming material from an upper surface where the second photoresist is not disposed. ### Claim 20 (depends on 14) The method of claim 14, wherein the forming of the light transmissive layer and the spacer comprises: continuously disposing a light transmissive layer forming material on the metal layer; disposing a third photoresist on at least a portion of the light transmissive layer forming material; forming the light transmissive layer and the spacer by removing at least a portion of the light transmissive layer forming material from an upper surface where the third photoresist is not disposed; and removing the third photoresist.