# US 10,319,941 B2 · Electroluminescence device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,319,941 B2 - Document ID: US10319941B2 - Status: Granted - Kind: B2 - Application number: 15/551,530 - Filed: 2016-02-09 - Published: 2018-02-08 - Granted: 2019-06-11 - Earliest claimed: 2015-02-16 - Assignees: Sharp Kabushiki Kaisha - Applicants: Sharp Kabushiki Kaisha - Inventors: Takeshi Hirase; Tetsuya Okamoto; Tohru Senoo; Tohru Sonoda; Mamoru Ishida - Web page: https://patentgrep.com/patent/US10319941B2 ## CPC - H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants} - H05B 33/04: Sealing arrangements {, e.g. against humidity} - H05B 33/14: characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source} - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 59/1213: {the pixel elements being TFTs} - H10K 59/873: {Encapsulations} - H10K 77/111: {Flexible substrates} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - Y02E 10/549: Organic PV cells - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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 An organic EL display device (electroluminescence device) including a TFT substrate (substrate), an organic EL element (electroluminescence element) disposed on the TFT substrate, a first inorganic film covering the organic EL element, at least one protruding body having a frame shape, the at least one protruding body being configured by an organic film and surrounding the electroluminescence element on the first inorganic film, a second inorganic film covering the first inorganic film and the at least one protruding body, and a leveled film configured by an organic film and provided on the second inorganic film. ## Claims ### Claim 1 An electroluminescence device comprising: a substrate; an electroluminescence element provided on the substrate; a first inorganic film covering the electroluminescence element; at least one protruding body having a frame shape, the at least one protruding body configured by an organic film and surrounding the electroluminescence element on the first inorganic film; a second inorganic film covering the first inorganic film and the at least one protruding body; and a leveled film configured by an organic film and provided on the second inorganic film, wherein an organic film layer configured by an organic film is disposed between the first inorganic film and the second inorganic film and covers the electroluminescence element, the at least one protruding body surrounds the organic film, a slit is formed between the organic film and the at least one protruding body, a first inorganic film is exposed in the slit, the second inorganic film contacts the first inorganic film in the slit, the leveled film fills the slit, and the at least one protruding body each has a protruding height greater than a total value of a thickness of the first inorganic film and a thickness of the organic film layer. ### Claim 2 (depends on 1) The electroluminescence device according to claim 1, wherein the organic film layer has a thickness greater than a thickness of the first inorganic film. ### Claim 3 (depends on 1) The electroluminescence device according to claim 1, wherein the at least one protruding body has a density greater than a density of the organic film layer. ### Claim 4 (depends on 1) The electroluminescence device according to claim 1, wherein an organic film used for the organic film layer is identical to an organic film used for the leveled film. ### Claim 5 (depends on 1) The electroluminescence device according to claim 1, wherein the at least one protruding body comprises a plurality of protruding bodies, and the plurality of protruding bodies are disposed on the first inorganic film and sequentially surround the electroluminescence element. ### Claim 6 (depends on 5) The electroluminescence device according to claim 5, wherein the electroluminescence element and the plurality of protruding bodies each include at least one corner including an are portion formed into an arc shape. ### Claim 7 (depends on 1) The electroluminescence device according to claim 1, wherein the electroluminescence element and the at least one protruding body are formed into a round shape. ### Claim 8 (depends on 1) The electroluminescence device according to claim 1, wherein the electroluminescence element and the at least one protruding body are formed into an oval shape. ### Claim 9 (depends on 1) The electroluminescence device according to claim 1, wherein the at least one protruding body each has a protruding height greater than a thickness of the first inorganic film. ### Claim 10 (depends on 1) The electroluminescence device according to claim 1, wherein the at least one protruding body each has a protruding height greater than a thickness of the electroluminescence element. ### Claim 11 (depends on 1) The electroluminescence device according to claim 1, wherein the at least one protruding body each has a density greater than a density of the leveled film. ### Claim 12 (depends on 1) The electroluminescence device according to claim 1, wherein a material having flexibility is used in the substrate. ### Claim 13 (depends on 1) The electroluminescence device according to claim 1, wherein a foundation film is provided between the substrate and the electroluminescence element, and the leveled film contacts the foundation film around a periphery of the electroluminescence device. ### Claim 14 (depends on 1) The electroluminescence device according to claim 1, wherein the at least one protruding body each has a protruding height smaller than a thickness of the leveled film around a periphery of the electroluminescence device. ### Claim 15 (depends on 5) The electroluminescence device according to claim 5, wherein another slit is formed between the plurality of protruding bodies, a first inorganic film is exposed in the another slit, the second inorganic film contacts the first inorganic film in the another slit, and the leveled film fills the another slit. ### Claim 16 An electroluminescence device comprising: a substrate; an electroluminescence element provided on the substrate; a first inorganic film covering the electroluminescence element; at least one protruding body having a frame shape, the at least one protruding body configured by an organic film and surrounding the electroluminescence element on the first inorganic film; a second inorganic film covering the first inorganic film and the at least one protruding body; and a leveled film configured by an organic film and provided on the second inorganic film, wherein an organic film layer configured by an organic film is disposed between the first inorganic film and the second inorganic film and covers the electroluminescence element, the at least one protruding body surrounds the organic film, a slit is formed between the organic film and the at least one protruding body, a first inorganic film is exposed in the slit, the second inorganic film contacts the first inorganic film in the slit, the leveled film fills the slit, and the at least one protruding body has a density greater than a density of the organic film layer or a density of the leveled film. ### Claim 17 (depends on 16) The electroluminescence device according to claim 16, wherein an organic film used for the organic film layer is identical to an organic film used for the leveled film. ### Claim 18 (depends on 16) The electroluminescence device according to claim 16, wherein the at least one protruding body comprises a plurality of protruding bodies, and the plurality of protruding bodies are disposed on the first inorganic film and sequentially surround the electroluminescence element. ### Claim 19 An electroluminescence device comprising: a substrate; an electroluminescence element provided on the substrate; a first inorganic film covering the electroluminescence element; at least one protruding body having a frame shape, the at least one protruding body configured by an organic film and surrounding the electroluminescence element on the first inorganic film; a second inorganic film covering the first inorganic film and the at least one protruding body; and a leveled film configured by an organic film and provided on the second inorganic film, wherein an organic film layer configured by an organic film is disposed between the first inorganic film and the second inorganic film and covers the electroluminescence element, the at least one protruding body surrounds the organic film, a slit is formed between the organic film and the at least one protruding body, a first inorganic film is exposed in the slit, the second inorganic film contacts the first inorganic film in the slit, the leveled film fills the slit, and an organic film used for the organic film layer is identical to an organic film used for the leveled film. ### Claim 20 (depends on 19) The electroluminescence device according to claim 19, wherein the at least one protruding body comprises a plurality of protruding bodies, and the plurality of protruding bodies are disposed on the first inorganic film and sequentially surround the electroluminescence element.