Flexible display device and method of manufacturing the same

{
  "publication_number": "US10326101B2",
  "country": "US",
  "kind": "B2",
  "title": "Flexible display device and method of manufacturing the same",
  "abstract": "A flexible display device and method of manufacturing the same are provided. A flexible display device includes a display region and a non-display region, the display region including a plurality of pixels, the non-display region being outside the display region. The flexible display device further includes: a substrate, a side sealant covering at least part of the non-display region of the substrate, and an intermediate layer between the substrate and the side sealant.",
  "claims": [
    "1. A flexible display device including a display region and a non-display region, the display region including a plurality of pixels, the non-display region being outside the display region, the flexible display device comprising: a substrate; a side sealant covering at least part of the non-display region of the substrate; and an intermediate layer between the substrate and the side sealant, wherein a bottom surface of the intermediate layer is in contact with a plurality of regions having different surface properties from each other.",
    "2. The flexible display device of claim 1, wherein the intermediate layer is a compound represented by the following chemical formula: (X) n -Si - (OR) m, [Chemical Formula 1] where: n=1˜3, m=1˜3, (n+m)=4, X is one of: mercapto, vinyl, epoxy, amino, and methacryl, and R is an alkyl group.",
    "3. The flexible display device of claim 1, wherein the intermediate layer comprises at least one of: silane, silicone rubber, and silicone emulsion.",
    "4. The flexible display device of claim 1, further comprising: an anisotropic conductive film (ACF) layer in the non-display region; and a flexible film adhered to the substrate, the ACF being between the flexible film and the substrate, wherein the intermediate layer covers: at least part of the ACF layer, at least part of the flexible film, and at least part of the substrate.",
    "5. The flexible display device of claim 4, wherein the intermediate layer is in contact with the substrate or with at least one insulation layer provided on the on the substrate.",
    "6. The flexible display device of claim 1, further comprising: an anisotropic conductive film (ACF) layer in the non-display region; and a flexible film adhered to the substrate, the ACF being between the flexible film and the substrate, wherein the intermediate layer covers: at least part of the flexible film, and at least part of the substrate.",
    "7. The flexible display device of claim 6, wherein the intermediate layer is in contact with the substrate or with at least one insulation layer provided on the on the substrate.",
    "8. The flexible display device of claim 1, wherein an area of the intermediate layer is greater than or equal to an area of the side sealant.",
    "9. The flexible display device of claim 1, further comprising: an anisotropic conductive film (ACF) layer in the non-display region; and a flexible film adhered to the substrate, the ACF being between the flexible film and the substrate, wherein the side sealant covers at least part of the flexible film.",
    "10. The flexible display device of claim 1, further comprising: an encapsulation layer covering the pixels, wherein the side sealant is in contact with the encapsulation layer.",
    "11. A flexible display device, comprising: a substrate comprising: a display region; and a non-display region outside of the display region; a side sealant on the non-display region; and an intermediate layer between the substrate and the side sealant, wherein the intermediate layer comprises: a bottom surface in contact with a plurality of regions having different surface properties from each other, and a top surface in contact with a region having one surface property.",
    "12. A method of manufacturing a flexible display device including a display region and a non-display region, the display region including a plurality of pixels, the non-display region being outside the display region, the method comprising: providing a substrate; covering at least part of the non-display region of the substrate with a side sealant; and providing an intermediate layer between the substrate and the side sealant, wherein a bottom surface of the intermediate layer is in contact with a plurality of regions having different surface properties from each other.",
    "13. The method of claim 12, wherein providing the intermediate layer comprises providing a compound represented by the following chemical formula: (X) n -Si - (OR) m, [Chemical Formula 1] where: n=1˜3, m=1˜3, (n+m)=4, X is one of: mercapto, vinyl, epoxy, amino, and methacryl, and R is an alkyl group.",
    "14. The method of claim 12, wherein providing the intermediate layer comprises providing at least one of: silane, silicone rubber, and silicone emulsion.",
    "15. The method of claim 12, further comprising: providing an anisotropic conductive film (ACF) layer in the non-display region; and adhering a flexible film to the substrate, the ACF being between the flexible film and the substrate, wherein the intermediate layer covers: at least part of the ACF layer, at least part of the flexible film, and at least part of the substrate.",
    "16. The method of claim 15, wherein the intermediate layer is in contact with the substrate or with at least one insulation layer provided on the on the substrate.",
    "17. The method of claim 12, further comprising: providing an anisotropic conductive film (ACF) layer in the non-display region; and adhering a flexible film to the substrate, the ACF being between the flexible film and the substrate, wherein the intermediate layer covers: at least part of the flexible film, and at least part of the substrate.",
    "18. The method of claim 17, wherein the intermediate layer is in contact with the substrate or with at least one insulation layer provided on the on the substrate.",
    "19. The method of claim 12, wherein an area of the intermediate layer is greater than or equal to an area of the side sealant.",
    "20. The method of claim 12, further comprising: providing an anisotropic conductive film (ACF) layer in the non-display region; and adhering a flexible film to the substrate, the ACF being between the flexible film and the substrate, wherein the side sealant covers at least part of the flexible film.",
    "21. The method of claim 12, further comprising: covering the pixels with an encapsulation layer, wherein the side sealant is in contact with the encapsulation layer."
  ],
  "description_excerpt": "The present disclosure relates to a display device and, more particularly, to a flexible display device and method of manufacturing the same.\n\nWith the development of information technologies, there are growing demands for display devices, which are a medium for connecting a user to information. Accordingly, display devices, such as an organic light-emitting display device, a liquid crystal display (LCD) and a plasma display panel (PDP), are widely used.\n\nAmong them, the organic light-emitting display device is a self-emitting element. Thus, the organic light-emitting display device may consume less power than the LCD, which requires a backlight, and may be made thinner than the LCD. In addition, the organic light-emitting display has advantages of a wide viewing angle and a fast response speed. Technologies of manufacturing an organic light-emitting display has improved so much that it is possible to produce a massive number of large screens. Now, the market for organic light-emitting displays is growing to be comparable to the market for LCDs.\n\nPixels in an organic light-emitting display device include a self-emitting organic light-emitting diode (OLED). Organic light-emitting display devices may be divided by a type of emission material, an emission type, an emission structure, or a driving method. Organic light-emitting display devices may be divided by an emission type into florescent emission type and phosphorescent emission type, or may be divided by an emission structure into a top-emission structure and a bottom-emission structure.",
  "cpc": [
    "H10K 59/8722",
    "G06F 1/1641",
    "G06F 1/1652",
    "G09F 9/301",
    "H01L 2227/323",
    "H01L 27/3276",
    "H01L 51/0097",
    "H01L 51/5243",
    "H01L 51/5246",
    "H01L 51/56",
    "H10K 2102/311",
    "H10K 50/8423",
    "H10K 50/8426",
    "H10K 59/1201",
    "H10K 59/131",
    "H10K 71/00",
    "H10K 77/111",
    "Y02E 10/549",
    "Y02P 70/50"
  ],
  "ipc": [
    "H10K 99/00"
  ],
  "assignees": [
    "LG Display Co Ltd"
  ],
  "inventors": [
    "Yeonjun Oh",
    "Jonghyun Park",
    "Seulki KIM"
  ],
  "filing_date": "2017-12-14",
  "publication_date": "2019-06-18",
  "grant_date": "2019-06-18",
  "priority_date": "2016-12-28",
  "application_number": "US-201715841740-A",
  "family_id": "62630706",
  "cited_by_count": 48,
  "citations": [
    "US8363189B2",
    "US8493529B2",
    "US8872168B2",
    "US20140300850A1",
    "US9942979B2"
  ]
}