# US 12,016,192 B2 · Conductive film, organic electroluminescence device, display device and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,016,192 B2 - Document ID: US12016192B2 - Status: Granted - Kind: B2 - Application number: 17/627,091 - Filed: 2021-04-29 - Published: 2023-10-05 - Granted: 2024-06-18 - Earliest claimed: 2021-04-29 - Assignees: Boe Technology Group Co., Ltd. - Applicants: BOE Technology Group Co., Ltd. - Inventors: Hui Zhou - Web page: https://patentgrep.com/patent/US12016192B2 ## CPC - H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole} - H10K 50/19: Tandem OLEDs - H10K 71/611: {using printing deposition, e.g. ink jet printing} - H10K 85/111: {comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene} - H10K 85/113: {Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene} - H10K 85/655: {comprising only sulfur as heteroatom} - H10K 50/828: Transparent cathodes, e.g. comprising thin metal layers - H10K 59/80524: {Transparent cathodes, e.g. comprising thin metal layers} - H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass - H10K 71/60: Forming conductive regions or layers, e.g. electrodes - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract The present disclosure provides a conductive film, an organic electroluminescence device, a display device and a method. The conductive film includes a matrix and conductive metal nano-ions distributed in the matrix the matrix is selected from at least one of an organic network polymer, an organic porous polymer, and an inorganic porous material. ## Claims ### Claim 1 A conductive film, comprising a matrix and conductive metal nano-ions distributed in the matrix, wherein the matrix is at least one selected from a group consisting of an organic network polymer, an organic porous polymer, and an inorganic porous material, wherein the matrix in which the conductive metal nano-ions are distributed has a specific surface area greater than 150 m2/g, and wherein the conductive metal nano-ions comprise at least one of Ag, Mg, Au, and Al. ### Claim 2 (depends on 1) The conductive film of claim 1, wherein the matrix is an organic network polymer or an organic porous polymer, and the matrix and the conductive metal nano-ion are chelatedly connected through a coordination bond; or the matrix is an inorganic porous material, and the matrix and the conductive metal nano-ions are coordinately connected through intermolecular force. ### Claim 3 (depends on 1) The conductive film of claim 1, wherein the conductive metal nano-ions are uniformly distributed in the matrix, and have a distribution ratio in a range from 1% to 70%. ### Claim 4 (depends on 1) The conductive film of claim 1, wherein the organic network polymer and the organic porous polymer independently comprise a covalent organic framework material. ### Claim 5 (depends on 1) An organic electroluminescence device, comprising an anode and a light emitting function layer, wherein the organic electroluminescence device further comprises the conductive film of claim 1, the conductive film is formed as a cathode arranged opposite to the anode, and the light emitting function layer is located between the conductive film and the anode. ### Claim 6 (depends on 5) The organic electroluminescence device of claim 5, wherein the matrix has a thickness in a range from 30 nm to 50 nm. ### Claim 7 (depends on 6) The organic electroluminescence device of claim 6, wherein the conductive metal nano-ions distributed in the matrix comprises Ag and/or Mg, and the matrix has a thickness in a range from 40 nm to 50 nm. ### Claim 8 (depends on 5) The organic electroluminescence device of claim 5, wherein the conductive film has a transmittance to red light in a range from 63% to 69%, a transmittance to green light in a range from 67% to 73%, and a transmittance to blue light in a range from 73% to 77%. ### Claim 9 (depends on 5) The organic electroluminescence device of claim 5, wherein the light emitting function layer comprises an electron transport layer, the conductive film is connected to the electron transport layer, and the electron transport layer is prepared from an aromatic compound having a nitrogen-heterocyclic electron withdrawing group. ### Claim 10 (depends on 5) The organic electroluminescence device of claim 5, wherein the light emitting function layer comprises a first light emitting unit for emitting red light, a second light emitting unit for emitting green light, and a third light emitting unit for emitting blue light, wherein a distance between a first film portion of the conductive film corresponding to the first light emitting unit and the anode is greater than a distance between a second film portion of the conductive film corresponding to the second light emitting unit and the anode; and a distance between a second film portion of the conductive film corresponding to the second light emitting unit and the anode is greater than a distance between a third film portion of the conductive film corresponding to the third light emitting unit and the anode. ### Claim 11 (depends on 5) The organic electroluminescence device of claim 5, wherein the conductive film is prepared by an evaporation process or a spin coating process. ### Claim 12 (depends on 7) A display device, comprising the organic electroluminescence device of claim 7. ### Claim 13 (depends on 5) The organic electroluminescence device of claim 5, wherein the matrix is an organic network polymer or an organic porous polymer, and the matrix and the conductive metal nano-ion are chelatedly connected through a coordination bond; or the matrix is an inorganic porous material, and the matrix and the conductive metal nano-ions are coordinately connected through intermolecular force. ### Claim 14 A method for preparing an electrode material, comprising: providing conductive metal nano-ions and a monomer material; and preparing an electrode material comprising a matrix and conductive metal nano-ions distributed in the matrix using the monomer material and the conductive metal nano-ions, wherein the matrix is selected from at least one of an organic network polymer, an organic porous polymer, and an inorganic porous material, wherein the matrix in which the conductive metal nano-ions are distributed has a specific surface area greater than 150 m2/g, and wherein the conductive metal nano-ions comprise at least one of Ag, Mg, Au, and Al. ### Claim 15 (depends on 14) The method of claim 14, wherein the monomer material is an organic monomer, and the preparing the electrode material comprising the matrix and the conductive metal nano-ions distributed in the matrix comprises: making the organic monomer polymerize into an organic network polymer; and chelating the conductive metal nano-ions with an organic network polymer having a preset temperature to prepare the electrode material. ### Claim 16 (depends on 15) The method of claim 15, wherein the chelating the conductive metal nano-ions with the organic network polymer having the preset temperature to prepare the electrode material comprises: placing the organic network polymer in a preset solvent; adding the conductive metal nano-ions after the preset solvent is heated to a preset temperature, to chelate the conductive metal nano-ions with the organic network polymer in the preset solvent; and filtering the preset solvent, and vacuum drying the electrode material obtained by filtering the preset solvent, to obtain the electrode material. ### Claim 17 (depends on 14) The method of claim 14, wherein the monomer material is an organic monomer, and the preparing the electrode material comprising the matrix and the conductive metal nano-ions distributed in the matrix comprises: chelating the conductive metal nano-ions with the organic monomer to obtain a chelated metal; and placing the chelated metal in a preset solvent, and polymerizing the organic monomer in the chelated metal to form an organic network polymer, to obtain the electrode material. ### Claim 18 (depends on 17) The method of claim 17, wherein after placing the chelated metal in the preset solvent, and polymerizing the organic monomer in the chelated metal to form the organic network polymer, the method further comprises: filtering the preset solvent, and vacuum drying the electrode material obtained by filtering the preset solvent.