# US 10,374,160 B2 · Production method for OLED panel, and production apparatus for OLED panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,160 B2 - Document ID: US10374160B2 - Status: Granted - Kind: B2 - Application number: 15/761,444 - Filed: 2017-02-24 - Published: 2019-02-21 - Granted: 2019-08-06 - Earliest claimed: 2017-02-24 - Assignees: Sharp Kabushiki Kaisha - Applicants: Sharp Kabushiki Kaisha - Inventors: Tetsunori Tanaka - Web page: https://patentgrep.com/patent/US10374160B2 ## CPC - H05B 33/02: Details - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - H05B 33/04: Sealing arrangements {, e.g. against humidity} - H05B 33/10: Apparatus or processes specially adapted to the manufacture of electroluminescent light sources - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 71/80: using temporary substrates - H10K 77/111: {Flexible substrates} - H10K 59/1201: {Manufacture or treatment} - H10K 71/851: {Division of substrate} - Y02E 10/549: Organic PV cells - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - 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 production method for an OLED panel includes forming on an upper face side of a transparent substrate, a layered body including a resin layer, a TFT layer, an OLED layer and a sealing layer including an organic sealing film, and then irradiating the resin layer being in contact with the transparent substrate with a laser beam to separate the transparent substrate and the layered body. In the production method, the resin layer includes a first region to be irradiated with a laser beam at a first intensity P1 and a second region to be irradiated with a laser beam at a second intensity P2 greater than the first intensity, the first region overlaps with the organic sealing film, and the second region does not overlap with the organic sealing film. ## Claims ### Claim 1 A production method for an OLED panel, the production method comprising: forming on an upper face side of a transparent substrate, a layered body including a resin layer, a TFT layer, an OLED layer and a sealing layer including an organic sealing film, and then irradiating the resin layer being in contact with the transparent substrate with a laser beam to separate the transparent substrate and the layered body, wherein the resin layer includes a first region to be irradiated with a laser beam at a first intensity and a second region to be irradiated with a laser beam at a second intensity greater than the first intensity, the first region overlaps with the organic sealing film, and the second region does not overlap with the organic sealing film. ### Claim 2 (depends on 1) The production method for an OLED panel according to claim 1, wherein the sealing layer includes an inorganic sealing film, the TFT layer includes an inorganic insulating film, the first region overlaps with the inorganic sealing film and the inorganic insulating film, and the second region overlaps with the inorganic insulating film. ### Claim 3 (depends on 2) The production method for an OLED panel according to claim 2, wherein when the layered body is formed, the organic sealing film has tensile stress, and the inorganic sealing film and the inorganic insulating film have compressive stress. ### Claim 4 (depends on 1) The production method for an OLED panel according to claim 1, wherein tensile stress is generated in the second region of the resin layer by irradiating the resin layer with a laser beam at the second intensity. ### Claim 5 (depends on 2) The production method for an OLED panel according to claim 2, wherein the second region overlaps with the inorganic sealing film. ### Claim 6 (depends on 5) The production method for an OLED panel according to claim 5, wherein the resin layer includes a third region to be irradiated with a laser beam at a third intensity, a relationship of the first intensity≤the third intensity