# US 2020/0403178 A1 · Display device and method for manufacturing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0403178 A1 - Document ID: US20200403178A1 - Status: Published application - Kind: A1 - Application number: 16/977,062 - Filed: 2018-03-09 - Published: 2020-12-24 - Earliest claimed: 2018-03-09 - Assignees: Sharp Kabushiki Kaisha - Applicants: Sharp Kabushiki Kaisha - Inventors: KAORU ABE - Web page: https://patentgrep.com/patent/US20200403178A1 ## CPC - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - 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 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/12: Active-matrix OLED [AMOLED] displays - H10K 59/1201: {Manufacture or treatment} - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract Provided is a display device including: a base substrate; a light-emitting element provided on one surface side of the base substrate; and a sealing film provided covering the light-emitting element, wherein the sealing film includes a first inorganic film and a second inorganic film sequentially provided covering the light-emitting element, and a resin layer provided in an island shape between the first inorganic film and the second inorganic film. ## Claims ### Claim 1 A display device comprising: a base substrate; a light-emitting element provided on one surface side of the base substrate; and a sealing film provided covering the light-emitting element, wherein the sealing film includes a first inorganic film and a second inorganic film sequentially provided covering the light-emitting element, and a resin layer provided in an island shape between the first inorganic film and the second inorganic film, and a refractive index difference between the resin layer and the first inorganic film and the second inorganic film is less than 0.1. ### Claim 2 (canceled) ### Claim 3 (depends on 1) The display device according to claim 1, wherein a plurality of the resin layer are provided spaced apart from each other. ### Claim 4 (depends on 3) The display device according to claim 3, wherein foreign matters adhere to at least one of a surface of the light-emitting element on a side of the first inorganic film and a surface of the first inorganic film on a side of the second inorganic film, and each of the plurality of the resin layer is provided covering the foreign matters. ### Claim 5 (depends on 1) The display device according to claim 1, further comprising: a display region provided with the light-emitting element; a frame region provided around the display region; and a TFT layer provided between the base substrate and the light-emitting element, wherein the light-emitting element includes a common electrode, the TFT layer includes a wiring line layer and a flattening film provided on the wiring line layer, a slit is provided in the flattening film, the slit surrounding the display region in the frame region, the common electrode is electrically connected to the wiring line layer via the slit, a second resin layer formed by a same material to a same layer as the resin layer is filled into the slit via the first inorganic film, and the second inorganic film is provided covering the second resin layer. ### Claim 6 (depends on 1) The display device according to claim 1, wherein the resin layer includes a polypropylene resin. ### Claim 7 (depends on 1) The display device according to claim 1, wherein the first inorganic film and the second inorganic film are formed by a silicon nitride film. ### Claim 8 (depends on 1) The display device according to claim 1, wherein the light-emitting element is an organic EL element. ### Claim 9 A method of manufacturing a display device, the method comprising the steps of: forming a light-emitting element on one surface side of a base substrate; and forming a sealing film covering the light-emitting element, wherein the step of forming the sealing film includes the steps of: forming a first inorganic film covering the light-emitting element; inspecting a substrate surface on which the first inorganic film is formed to detect positions of foreign matters on the substrate surface; storing the positions of the foreign matters detected; forming a resin layer in an island shape by an ink-jet method at the positions of the foreign matters stored on the first inorganic film; and forming a second inorganic film on the first inorganic film via the resin layer to form the sealing film. ### Claim 10 (depends on 9) The method of manufacturing the display device according to claim 9, wherein a refractive index difference between the resin layer and the first inorganic film and the second inorganic film is less than 0.1. ### Claim 11 (depends on 9) The method of manufacturing the display device according to claim 9, the display device comprising: a display region provided with the light-emitting element; a frame region provided around the display region; and a TFT layer provided between the base substrate and the light-emitting element, wherein the light-emitting element includes a common electrode, the TFT layer includes a wiring line layer and a flattening film provided on the wiring line layer, a slit is provided in the flattening film, the slit surrounding the display region in the frame region, the common electrode is electrically connected to the wiring line layer via the slit, and in the step of forming the resin layer, a second resin layer formed by a same material as the resin layer is formed by an ink-jet method via the first inorganic film into the slit. ### Claim 12 (depends on 9) The method of manufacturing the display device according to claim 9, wherein the light-emitting element is an organic EL element. ### Claim 13 A display device comprising: a base substrate; a light-emitting element provided on one surface side of the base substrate; and a sealing film provided covering the light-emitting element, wherein the sealing film includes a first inorganic film and a second inorganic film sequentially provided covering the light-emitting element, and a resin layer provided in an island shape between the first inorganic film and the second inorganic film, a plurality of the resin layer are provided spaced apart from each other, foreign matters adhere to at least one of a surface of the light-emitting element on a side of the first inorganic film and a surface of the first inorganic film on a side of the second inorganic film, and each of the plurality of the resin layer is provided covering the foreign matters. ### Claim 14 (depends on 13) The display device according to claim 13, further comprising: a display region provided with the light-emitting element; a frame region provided around the display region; and a TFT layer provided between the base substrate and the light-emitting element, wherein the light-emitting element includes a common electrode, the TFT layer includes a wiring line layer and a flattening film provided on the wiring line layer, a slit is provided in the flattening film, the slit surrounding the display region in the frame region, the common electrode is electrically connected to the wiring line layer via the slit, a second resin layer formed by a same material to a same layer as the resin layer is filled into the slit via the first inorganic film, and the second inorganic film is provided covering the second resin layer. ### Claim 15 (depends on 13) The display device according to claim 13, wherein the resin layer includes a polypropylene resin. ### Claim 16 (depends on 13) The display device according to claim 13, wherein the first inorganic film and the second inorganic film are formed by a silicon nitride film. ### Claim 17 (depends on 13) The display device according to claim 13, wherein the light-emitting element is an organic EL element.