# US 2016/0254484 A1 · Electroluminescent device and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0254484 A1 - Document ID: US20160254484A1 - Status: Published application - Kind: A1 - Application number: 14/762,048 - Filed: 2014-12-04 - Published: 2016-09-01 - Earliest claimed: 2014-07-31 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Donghui YU; Chun Jan WANG; Chengyuan LUO - Web page: https://patentgrep.com/patent/US20160254484A1 ## CPC - H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An electroluminescent device and a display device are provided. The electroluminescent device includes: a base substrate (100), a first surface of which is provided with a luminous element (110); a first substrate (210) having a first groove arranged to be opposed to the first surface of the base substrate (100); a sealing element (300) hermetically secured with a wall of the first groove, protruding from a notch of the first groove, and having a sealing groove provided to be opposed to a first surface of the base substrate (100); a part of the sealing element (300) protruding from the notch of the first groove is hermetically secured with the base substrate (100), and the luminous element (110) is arranged within the sealing groove. The electroluminescent device and display device depress the probability of the moisture in the air entering the sealing element and contacting with the luminous element, thus improving the performance and life of the electroluminescent device. ## Claims ### Claim 1 An electroluminescent device, comprising: a base substrate, a first surface of which is provided with a luminous element; a first substrate having a first groove arranged to be opposed to the first surface of the base substrate; a sealing element hermetically secured with a wall of the first groove, protruding from a notch of the first groove, and having a sealing groove provided to be opposed to the first surface of the base substrate; a part of the sealing element protruding from the notch of the first groove is hermetically secured with the base substrate, and the luminous element is arranged within the sealing groove. ### Claim 2 (depends on 1) The electroluminescent device according to claim 1, wherein, the sealing element covers and is hermetically secured with a bottom surface of the first groove. ### Claim 3 (depends on 1) The electroluminescent device according to claim 1, wherein, a first surface of the sealing element is hermetically secured with the first surface of the base substrate, and is a surface where the part of the sealing element protruding from the notch of the first groove is opposed to the first surface of the base substrate. ### Claim 4 (depends on 3) The electroluminescent device according to claim 3, wherein, the sealing element is formed of a sealant material. ### Claim 5 (depends on 4) The electroluminescent device according to claim 4, wherein, the sealing element is formed of epoxy resin, polyurethane, phenolic resin, unsaturated polyester or melamine resin materials. ### Claim 6 (depends on 3) The electroluminescent device according to claim 3, wherein, the sealing element is of one-piece configuration. ### Claim 7 (depends on 2) The electroluminescent device according to claim 2, wherein, the sealing element comprises a sealing bottom plate covering the bottom of the first groove and sealing side plates enclosing around the bottom plate, the sealing bottom plate and the sealing side plates enclose to form the sealing groove. ### Claim 8 (depends on 3) The electroluminescent device according to claim 3, wherein, a blocking layer is formed between the luminous element and the sealing elements. ### Claim 9 (depends on 8) The electroluminescent device according to claim 8, wherein, the blocking layer is the formed of an organic film or an inorganic film. ### Claim 10 An electroluminescent device, comprising: a base substrate, the first surface of which is provided with a luminous element; a second substrate having a second groove arranged to be opposed to the first surface of the base substrate; the second substrate is hermetically secured with the base substrate, and the luminous element is provided within the second groove. ### Claim 11 (depends on 10) The electroluminescent device according to claim 10, wherein, a first surface of the second substrate is hermetically secured with a first surface of the base substrate, and is a surface of the second substrate facing the first surface of the base substrate. ### Claim 12 A display device comprising an electroluminescent device, the electroluminescent device comprising: a base substrate, a first surface of which is provided with a luminous element; a first substrate having a first groove arranged to be opposed to the first surface of the base substrate; a sealing element hermetically secured with a wall of the first groove, protruding from a notch of the first groove, and having a sealing groove provided to be opposed to the first surface of the base substrate; a part of the sealing element protruding from the notch of the first groove is hermetically secured with the base substrate, and the luminous element is arranged within the sealing groove. ### Claim 13 (depends on 2) The electroluminescent device according to claim 2, wherein, a first surface of the sealing element is hermetically secured with the first surface of the base substrate, and is a surface where the part of the sealing element protruding from the notch of the first groove is opposed to the first surface of the base substrate. ### Claim 14 (depends on 12) The display device according to claim 12, wherein, the sealing element covers and is hermetically secured with a bottom surface of the first groove. ### Claim 15 (depends on 12) The display device according to claim 12, wherein, a first surface of the sealing element is hermetically secured with the first surface of the base substrate, and is a surface where the part of the sealing element protruding from the notch of the first groove is opposed to the first surface of the base substrate. ### Claim 16 (depends on 15) The display device according to claim 15, wherein, the sealing element is formed of a sealant material. ### Claim 17 (depends on 16) The display device according to claim 16, wherein, the sealing element is formed of epoxy resin, polyurethane, phenolic resin, unsaturated polyester or melamine resin materials. ### Claim 18 (depends on 15) The display device according to claim 15, wherein, the sealing element is of one-piece configuration. ### Claim 19 (depends on 14) The display device according to claim 14, wherein, the sealing element comprises a sealing bottom plate covering the bottom of the first groove and sealing side plates enclosing around the bottom plate, the sealing bottom plate and the sealing side plates enclose to form the sealing groove. ### Claim 20 (depends on 15) The display device according to claim 15, wherein, a blocking layer is formed between the luminous element and the sealing elements.