# US 10,483,497 B2 · OLED substrate and manufacturing method thereof and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,497 B2 - Document ID: US10483497B2 - Status: Granted - Kind: B2 - Application number: 15/981,324 - Filed: 2018-05-16 - Published: 2019-03-28 - Granted: 2019-11-19 - Earliest claimed: 2017-09-25 - Assignees: Boe Technology Group Co., Ltd.; Hefei Xinsheng Optoelectronics Technology Co., Ltd. - Applicants: BOE Technology Group Co., Ltd.; Hefei Xinsheng Optoelectronics Technology Co., Ltd. - Inventors: Leilei Cheng - Web page: https://patentgrep.com/patent/US10483497B2 ## CPC - H10K 59/126: Shielding, e.g. light-blocking means over the TFTs - H10K 59/8794: {Arrangements for heating and cooling} - H10K 59/12: Active-matrix OLED [AMOLED] displays - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract Embodiments of the present disclosure provide an OLED substrate and a manufacturing method thereof and a display device. The OLED substrate includes: a base substrate; a first electrode and a second electrode which are on the base substrate; an organic material functional layer between the first electrode and the second electrode; and an auxiliary heat dissipation layer which is at a light exit side of the organic material functional layer and is in contact with the organic material functional layer. The auxiliary heat dissipation layer includes a metal heat dissipation portion and a metal oxide light transmission portion. ## Claims ### Claim 1 An OLED (organic light-emitting diode) substrate, comprising: a base substrate; a first electrode and a second electrode which are on the base substrate; an organic material functional layer between the first electrode and the second electrode; and an auxiliary heat dissipation layer which is at a light exit side of the organic material functional layer and is in contact with the organic material functional layer, wherein the auxiliary heat dissipation layer comprises a metal heat dissipation portion and a metal oxide light transmission portion, the metal heat dissipation portion comprises a metal, the metal oxide light transmission portion comprises a metal oxide, and the metal oxide is an oxide of the metal. ### Claim 2 (depends on 1) The OLED substrate according to claim 1, wherein the metal comprises an elemental metal. ### Claim 3 (depends on 1) The OLED substrate according to claim 1, wherein the metal comprises tantalum and the metal oxide comprises tantalum oxide. ### Claim 4 (depends on 1) The OLED substrate according to claim 1, further comprising a plurality of sub-pixels arranged in an array manner on the base substrate, wherein each of the sub-pixels comprises a scan line, a data line, a power source line and a thin film transistor, a gate electrode of the thin film transistor is connected with the scan line, a source electrode of the thin film transistor is connected with the data line, and a drain electrode of the thin film transistor is connected with the power source line and is connected with the first electrode or the second electrode; an orthographic projection of the metal heat dissipation portion on the base substrate covers an orthographic projection of the thin film transistor on the base substrate; and the orthographic projection of the metal heat dissipation portion on the base substrate further covers orthographic projections of the scan line, the data line and the power source line on the base substrate. ### Claim 5 (depends on 4) The OLED substrate according to claim 4, wherein each of the sub-pixels comprises a light exit region, and an orthographic projection of the metal oxide light transmission portion on the base substrate coincides with an orthographic projection of the light exit region on the base substrate. ### Claim 6 (depends on 1) The OLED substrate according to claim 1, wherein on the base substrate, an upper surface of the metal heat dissipation portion and an upper surface of the metal oxide light transmission portion are in a same plane, and a lower surface of the metal heat dissipation portion and a lower surface of the metal oxide light transmission portion are in a same plane. ### Claim 7 (depends on 1) The OLED substrate according to claim 1, further comprising a color filter layer at a side of the auxiliary heat dissipation layer facing away from the organic material functional layer. ### Claim 8 A manufacturing method of an OLED substrate, comprising: forming a first electrode and a second electrode on a base substrate; forming an organic material functional layer between the first electrode and the second electrode; and forming an auxiliary heat dissipation layer which is at a light exit side of the organic material functional layer and is in contact with the organic material functional layer, wherein the auxiliary heat dissipation layer comprises a metal heat dissipation portion and a metal oxide light transmission portion, the metal heat dissipation portion comprises a metal, the metal oxide light transmission portion comprises a metal oxide, and the metal oxide is an oxide of the metal. ### Claim 9 (depends on 8) The manufacturing method according to claim 8, wherein forming the auxiliary heat dissipation layer comprises: forming a metal film by the metal and performing an oxidation treatment on a first portion of the metal film to form the metal oxide light transmission portion, wherein a second portion, which is not subjected to the oxidation treatment, of the metal film forms the metal heat dissipation portion. ### Claim 10 (depends on 9) The manufacturing method according to claim 9, wherein the oxidation treatment is performed using hydrogen peroxide. ### Claim 11 (depends on 9) The manufacturing method according to claim 9, wherein the metal film is formed of an elemental metal. ### Claim 12 (depends on 9) The manufacturing method according to claim 9, wherein the metal film is formed of tantalum. ### Claim 13 (depends on 8) The manufacturing method according to claim 8, wherein the OLED substrate comprises a plurality of sub-pixels arranged in an array manner on the base substrate, each of the sub-pixels comprises a scan line, a data line, a power source line and a thin film transistor, a gate electrode of the thin film transistor is connected with the scan line, a source electrode of the thin film transistor is connected with the data line, and a drain electrode of the thin film transistor is connected with the power source line and is connected with the first electrode or the second electrode; an orthographic projection of the metal heat dissipation portion on the base substrate covers an orthographic projection of the thin film transistor on the base substrate; and the orthographic projection of the metal heat dissipation portion on the base substrate further covers orthographic projections of the scan line, the data line and the power source line on the base substrate. ### Claim 14 (depends on 13) The manufacturing method according to claim 13, wherein each of the sub-pixels comprises a light exit region, and an orthographic projection of the metal oxide light transmission portion on the base substrate coincides with an orthographic projection of the light exit region on the base substrate. ### Claim 15 (depends on 8) The manufacturing method according to claim 8, wherein on the base substrate, an upper surface of the metal heat dissipation portion and an upper surface of the metal oxide light transmission portion are in a same plane, and a lower surface of the metal heat dissipation portion and a lower surface of the metal oxide light transmission portion are in a same plane. ### Claim 16 (depends on 8) The manufacturing method according to claim 8, further comprising: forming a color filter layer at a side of the auxiliary heat dissipation layer facing away from the organic material functional layer. ### Claim 17 (depends on 1) A display device, comprising the OLED substrate according to claim 1. ### Claim 18 An OLED (organic light-emitting diode) substrate, comprising: a base substrate; a first electrode and a second electrode which are on the base substrate; an organic material functional layer between the first electrode and the second electrode; and an auxiliary heat dissipation layer which is at a light exit side of the organic material functional layer and is in contact with the organic material functional layer, wherein the auxiliary heat dissipation layer comprises a metal heat dissipation portion and a metal oxide light transmission portion, and wherein on the base substrate, an upper surface of the metal heat dissipation portion and an upper surface of the metal oxide light transmission portion are in a same plane, and a lower surface of the metal heat dissipation portion and a lower surface of the metal oxide light transmission portion are in a same plane.