# US 10,374,195 B2 · Adhesive film and organic electronic device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,195 B2 - Document ID: US10374195B2 - Status: Granted - Kind: B2 - Application number: 16/024,034 - Filed: 2018-06-29 - Published: 2019-01-03 - Granted: 2019-08-06 - Earliest claimed: 2017-06-29 - Assignees: Shinwha Intertek Corp - Applicants: Shinwha Intertek Corp - Inventors: Sung Chul Yoon; Cheol Heung Ahn; Hwi Yong Lee; Ji Woong Park; Dong Hyun Kim; Geoung Min Shin - Web page: https://patentgrep.com/patent/US10374195B2 ## CPC - C09J 7/10: without carriers - H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants} - H10K 59/874: {including getter material or desiccant} - C08K 9/02: Ingredients treated with inorganic substances - C08K 2201/013: Additives applied to the surface of polymers or polymer particles - C09J 2203/326: for bonding electronic components such as wafers, chips or semiconductors - C09J 2301/1242: the opposite adhesive layers being different - C09J 2301/208: the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive - C09J 2301/408: additives as essential feature of the adhesive layer - H10K 59/873: {Encapsulations} - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract An adhesive film and an organic electronic device including the same are provided. The adhesive film includes: a first bonding layer including a first bonding component layer, a moisture absorbent, and first core shell particles; and a second bonding layer disposed below the first bonding layer and including second core shell particles, which are formed of a different material from the first core shell particles, wherein each of the first core shell particles includes a first shell and a first core surrounded by the first shell and each of the second core shell particles includes a second shell and a second core surrounded by the second shell. ## Claims ### Claim 1 An adhesive film comprising: a first bonding layer including a first bonding component layer, a moisture absorbent, and first core shell particles; and a second bonding layer disposed below the first bonding layer and including second core shell particles, which are formed of a different material from the first core shell particles, wherein each of the first core shell particles includes a first shell and a first core surrounded by the first shell, each of the second core shell particles includes a second shell and a second core surrounded by the second shell, a shrinkage deformation force of the first core shell particles is weaker than a surface deformation force of the first bonding component layer so that the first core shell particles are more easily deformable than the first bonding component layer, and the first core is empty or filled with a gas. ### Claim 2 (depends on 1) The adhesive film of claim 1, wherein a diameter of the first core is greater than a thickness of the first shell, and a diameter of the second core is greater than a thickness of the second shell. ### Claim 3 (depends on 2) The adhesive film of claim 2, wherein each of the first core shell particles further includes a surface coating layer formed on a surface of the first shell. ### Claim 4 (depends on 3) The adhesive film of claim 3, wherein the surface coating layer contains calcium carbonate. ### Claim 5 (depends on 1) The adhesive film of claim 1, wherein the first core shell particles are foamed particles. ### Claim 6 (depends on 1) The adhesive film of claim 1, wherein the first core shell particles absorb at least some of a deformation force generated when the moisture absorbent absorbs moisture. ### Claim 7 (depends on 1) The adhesive film of claim 1, wherein a content of the first core shell particles is 0.01% to 3% by weight of the moisture absorbent. ### Claim 8 (depends on 1) The adhesive film of claim 1, wherein the first core shell particles have a larger size than the second core shell particles, a thickness of the first bonding layer is greater than a thickness of the second bonding layer, and a content of the second core shell particles in the entire adhesive film is greater than a content of the first core shell particles in the entire adhesive film. ### Claim 9 (depends on 1) The adhesive film of claim 1, wherein a ratio of an average size of the first core shell particles to an average size of the second core shell particles is greater than a ratio of a thickness of the first bonding layer to a thickness of the second bonding layer. ### Claim 10 (depends on 1) The adhesive film of claim 1, wherein the second bonding layer further includes a second bonding component layer, and the second bonding component layer includes a binder having a smaller molecular weight than the first bonding component layer. ### Claim 11 (depends on 1) The adhesive film of claim 1, wherein the second core shell particles contain a polymer material. ### Claim 12 (depends on 11) The adhesive film of claim 11, wherein a content of the second core shell particles is 20% by weight of the moisture absorbent. ### Claim 13 (depends on 1) The adhesive film of claim 1, wherein the first bonding layer is disposed further apart than the second bonding layer from an object to be encapsulated. ### Claim 14 An organic electronic device comprising: a substrate; an organic material element disposed on the substrate; and an adhesive film disposed on the organic material element, wherein the adhesive film comprises: a first bonding layer including a first bonding component layer, a moisture absorbent, and first core shell particles, and a second bonding layer disposed below the first bonding layer and including second core shell particles, which are formed of a different material from the first core shell particles, wherein each of the first core shell particles includes a first shell and a first core surrounded by the first shell, each of the second core shell particles includes a second shell and a second core surrounded by the second shell, a shrinkage deformation force of the first core shell particles is weaker than a surface deformation force of the first bonding component layer so that the first core shell particles are more easily deformable than the first bonding component layer, and the first core is empty or filled with a gas. ### Claim 15 (depends on 14) The adhesive film of claim 14, wherein a diameter of the first core is greater than a thickness of the first shell, and a diameter of the second core is greater than a thickness of the second shell. ### Claim 16 (depends on 15) The adhesive film of claim 15, wherein each of the first core shell particles further includes a surface coating layer formed on a surface of the first shell and wherein the surface coating layer contains calcium carbonate. ### Claim 17 (depends on 14) The adhesive film of claim 14, wherein a ratio of an average size of the first core shell particles to an average size of the second core shell particles is greater than a ratio of a thickness of the first bonding layer to a thickness of the second bonding layer. ### Claim 18 (depends on 14) The adhesive film of claim 14, wherein the first core shell particles are foamed particles. ### Claim 19 (depends on 14) The adhesive film of claim 14, wherein the first core shell particles absorb at least some of a deformation force generated when the moisture absorbent absorbs moisture. ### Claim 20 (depends on 14) The adhesive film of claim 14, wherein a content of the first core shell particles is 0.01% to 3% by weight of the moisture absorbent.