# US 2019/0173048 A1 · Display device and manufacturing method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0173048 A1 - Document ID: US20190173048A1 - Status: Published application - Kind: A1 - Application number: 15/991,656 - Filed: 2018-05-29 - Published: 2019-06-06 - Earliest claimed: 2017-12-05 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Woo Yong SUNG; Seung Ho YOON - Web page: https://patentgrep.com/patent/US20190173048A1 ## CPC - H10K 77/10: Substrates, e.g. flexible substrates - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/3258: with pixel circuitry controlling the voltage across the light-emitting element - H10K 59/8723: {Vertical spacers, e.g. arranged between the sealing arrangement and the OLED} - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A display device includes: a substrate having a display area and a non-display area disposed around the display area; an organic light emitting diode disposed on the substrate in the display area; and a spacer disposed on the substrate in the non-display area, the substrate includes a first insulating film and a second insulating film disposed on the first insulating film, the substrate includes a groove disposed in an edge area farther from the organic light emitting diode than the spacer in the non-display area, and the groove is formed in at least one of the first insulating film and the second insulating film. ## Claims ### Claim 1 A display device comprising: a substrate comprising a display area and a non-display area disposed around the display area; an organic light emitting diode disposed on the substrate in the display area; and a spacer disposed on the substrate in the non-display area, wherein the substrate comprises a first insulating film and a second insulating film disposed on the first insulating film, wherein the substrate comprises a groove disposed in an edge area farther from the organic light emitting diode than the spacer, and wherein the groove is formed in at least one of the first insulating film and the second insulating film. ### Claim 2 (depends on 1) The display device of claim 1, further comprising an encapsulation layer disposed on the substrate, wherein the encapsulation layer comprises an inorganic encapsulation layer and an organic encapsulation layer, and wherein the inorganic encapsulation layer of the encapsulation layer overlaps the groove of the substrate. ### Claim 3 (depends on 2) The display device of claim 2, wherein the organic encapsulation layer of the encapsulation layer does not overlap with the groove of the substrate. ### Claim 4 (depends on 2) The display device of claim 2, wherein the organic encapsulation layer of the encapsulation layer overlaps a portion of the groove of the substrate. ### Claim 5 A display device comprising: a substrate comprising a display area and a non-display area disposed around the display area; an organic light emitting diode disposed on the substrate in the display area; and an encapsulation layer disposed on the substrate in the display area and in the non-display area and comprising a plurality of inorganic encapsulation layers and an organic encapsulation layer, wherein the substrate comprises a first insulating film and a second insulating film disposed on the first insulating film, wherein the substrate comprises a groove disposed in a region that overlaps with the plurality of inorganic encapsulation layers in the non-display area, and wherein the groove is formed in at least one of the first insulating film and the second insulating film. ### Claim 6 (depends on 5) The display device of claim 5, wherein the organic encapsulation layer of the encapsulation layer does not overlap the groove of the substrate. ### Claim 7 (depends on 5) The display device of claim 5, wherein the organic encapsulation layer of the encapsulation layer overlaps a portion of the groove of the substrate. ### Claim 8 A manufacturing method of a display device, the method comprising: forming an organic light emitting diode in a display area of a substrate and forming a spacer in a non-display area of the substrate; forming a groove in an edge area of the substrate farther from the organic light emitting diode than the spacer; and forming an encapsulation layer on the substrate. ### Claim 9 (depends on 8) The manufacturing method of claim 8, wherein the groove of the substrate is formed by using a laser. ### Claim 10 A manufacturing method of a display device, the method comprising: stacking a plurality of insulating layers on a substrate that comprises a display area and a non-display area disposed around the display area; forming a plurality of contact holes in the plurality of insulating layers located in the display area; forming a first groove in the plurality of insulating layers located in the non-display area; forming an organic light emitting diode in the display area; forming a spacer in the non-display area; forming a second groove in the substrate to be aligned with the first groove in the non-display area; and forming an encapsulation layer on the substrate. ### Claim 11 (depends on 10) The manufacturing method of claim 10, wherein the second groove is formed in an edge area farther from the organic light emitting diode than the spacer. ### Claim 12 (depends on 11) The manufacturing method of claim 11, wherein the second groove is formed by using a laser. ### Claim 13 (depends on 11) The manufacturing method of claim 11, wherein the second groove is formed by etching the substrate with the insulating layers having the first groove as an etching mask.