# US 10,312,468 B2 · Light emitting device, electronic appliance, and method for manufacturing light emitting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,468 B2 - Document ID: US10312468B2 - Status: Granted - Kind: B2 - Application number: 15/854,964 - Filed: 2017-12-27 - Published: 2018-06-28 - Granted: 2019-06-04 - Earliest claimed: 2003-12-26 - Assignees: Semiconductor Energy Laboratory Co., Ltd. - Applicants: Semiconductor Energy Laboratory Co., Ltd. - Inventors: Yoshiharu Hirakata; Shunpei Yamazaki - Web page: https://patentgrep.com/patent/US10312468B2 ## CPC - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10D 89/60: Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD] - H10H 20/852: Encapsulations - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants} - H10K 59/8723: {Vertical spacers, e.g. arranged between the sealing arrangement and the OLED} - H10K 59/874: {including getter material or desiccant} - H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light} - H10K 71/40: Thermal treatment, e.g. annealing in the presence of a solvent vapour - H10K 71/50: Forming devices by joining two substrates together, e.g. lamination techniques - H10K 59/1201: {Manufacture or treatment} - H10K 71/135: {using ink-jet printing} - H10K 71/851: {Division of substrate} - H10K 2102/101: {comprising transparent conductive oxides [TCO]} - H10K 2102/3031: {Two-side emission, e.g. transparent OLEDs [TOLED]} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS ## Abstract To provide a light emitting device that has a structure in which a light emitting element is sandwiched by two substrates to prevent moisture from penetrating into the light emitting element, and a method for manufacturing thereof. In addition, a gap between the two substrates can be controlled precisely. In the light emitting device according to the present invention, an airtight space surrounded by a sealing material with a closed pattern is kept under reduced pressure by attaching the pair of substrates under reduced pressure. A columnar or wall-shaped structure is formed between light emitting regions inside of the sealing material, in a region overlapping with the scaling material, or in a region outside of the sealing material so that the gap between the pair of substrates can be maintained precisely. ## Claims ### Claim 1 A light-emitting device comprising: a first substrate and a second substrate; a pixel portion comprising a light-emitting element and a transistor; a gate signal line driver circuit electrically connected to the pixel portion; a sealing material with a closed pattern between the first substrate and the second substrate; and an organic material layer, wherein the pixel portion and the gate signal line driver circuit are provided inside of a region surrounded by the sealing material, and wherein the organic material layer is provided outside of the region surrounded by the sealing material. ### Claim 2 (depends on 1) The light-emitting device according to claim 1, further comprising a polarizing plate over the second substrate. ### Claim 3 (depends on 1) The light-emitting device according to claim 1, wherein the light-emitting device is configured to emit light from the light-emitting element through the second substrate. ### Claim 4 (depends on 1) The light-emitting device according to claim 1, wherein the light-emitting element comprises a cathode, an anode, and a layer containing an organic compound between the cathode and the anode. ### Claim 5 (depends on 1) The light-emitting device according to claim 1, wherein the organic material layer is included in a structure, and wherein the sealing material and the structure do not overlap each other. ### Claim 6 (depends on 1) The light-emitting device according to claim 1, further comprising a source signal line driver circuit electrically connected to the pixel portion, wherein the source signal line driver circuit is provided inside of the region surrounded by the sealing material. ### Claim 7 (depends on 1) An electronic appliance comprising the light-emitting device according to claim 1. ### Claim 8 (depends on 1) A head-mounted display comprising the light-emitting device according to claim 1. ### Claim 9 A light-emitting device comprising: a first substrate and a second substrate; a pixel portion comprising a light-emitting element and a transistor; a gate signal line driver circuit electrically connected to the pixel portion; a sealing material with a closed pattern between the first substrate and the second substrate; an organic material layer; and a flexible printed circuit attached to the first substrate, wherein the pixel portion and the gate signal line driver circuit are provided inside of a region surrounded by the sealing material, wherein the organic material layer is provided outside of the region surrounded by the sealing material, and wherein the organic material layer is provided between the flexible printed circuit and the pixel portion. ### Claim 10 (depends on 9) The light-emitting device according to claim 9, further comprising a polarizing plate over the second substrate. ### Claim 11 (depends on 9) The light-emitting device according to claim 9, wherein the light-emitting device is configured to emit light from the light-emitting element through the second substrate. ### Claim 12 (depends on 9) The light-emitting device according to claim 9, wherein the light-emitting element comprises a cathode, an anode, and a layer containing an organic compound between the cathode and the anode. ### Claim 13 (depends on 9) The light-emitting device according to claim 9, wherein the organic material layer is included in a structure, and wherein the sealing material and the structure do not overlap each other. ### Claim 14 (depends on 9) The light-emitting device according to claim 9, further comprising a source signal line driver circuit electrically connected to the pixel portion, wherein the source signal line driver circuit is provided inside of the region surrounded by the sealing material. ### Claim 15 (depends on 9) An electronic appliance comprising the light-emitting device according to claim 9. ### Claim 16 (depends on 9) A head-mounted display comprising the light-emitting device according to claim 9.