Peeling apparatus and method of manufacturing display device using the same

{
  "publication_number": "US11760079B2",
  "country": "US",
  "kind": "B2",
  "title": "Peeling apparatus and method of manufacturing display device using the same",
  "abstract": "A peeling apparatus includes a water tank, a stage disposed in the water tank, a peeling member disposed above the stage, and a discharge preventing block disposed in the water tank and disposed outside the stage, wherein a height of the discharge preventing block is greater than a height of the stage.",
  "claims": [
    "1. A peeling apparatus comprising: a water tank including a bottom surface and opposite outer walls being in contact with and extending from the bottom surface; a stage disposed in the water tank; a peeling member disposed above the stage; and a discharge preventing block disposed in the water tank, disposed outside the stage, extending from the bottom surface and interposed between the opposite outer walls, wherein a height of the discharge preventing block is greater than a height of the stage.",
    "2. The peeling apparatus of claim 1, further comprising: water filled in the water tank.",
    "3. The peeling apparatus of claim 2, wherein the stage, the discharge preventing block and a lower portion of the peeling member are immerged in the water.",
    "4. The peeling apparatus of claim 1, wherein the peeling member is a roller which includes a surface covered with rubber.",
    "5. The peeling apparatus of claim 4, wherein a height of a lowermost end of the peeling member is lower than a height of an uppermost end of the discharge preventing block.",
    "6. The peeling apparatus of claim 4, wherein a frictional member is disposed on at least portion of the surface of the peeling member.",
    "7. The peeling apparatus of claim 1, wherein the discharge preventing block includes a base portion having a uniform width and a tip portion connected to the base portion and having a width smaller than the width of the base portion.",
    "8. The peeling apparatus of claim 7, wherein a width of the tip portion decreases toward an upper end thereof.",
    "9. The peeling apparatus of claim 8, wherein an inner surface of the tip portion has a rounded shape.",
    "10. The peeling apparatus of claim 1, further comprising: a sub-peeling member including a surface covered with rubber, the sub-peeling member being disposed above the stage, and a shape of the sub-peeling member is identical to a shape of the peeling member.",
    "11. The peeling apparatus of claim 10, wherein the peeling member and the sub-peeling member have a same height.",
    "12. A method of manufacturing a display device, the method comprising: disposing a target stack including a plurality of stacked glass members on a stage; elevating the stage on which the target stack is disposed; and peeling off a first glass member of the plurality of stacked glass members disposed at an uppermost portion of the target stack using a peeling member and a discharge preventing block, wherein the peeling the first glass member is performed in a water tank including a bottom surface and opposite outer walls being in contact with and extending from the bottom surface and filled with water, and the discharge preventing block is disposed in the water tank, is disposed outside the stage, extends from the bottom surface and is interposed between the opposite outer walls.",
    "13. The method of claim 12, wherein in the peeling the first glass member, a temperature of the water ranges from 70 degrees Celsius to 90 degrees Celsius.",
    "14. The method of claim 12, wherein the peeling the first glass member is performed while at least a portion of the peeling member, the stage and the target stack are immersed in the water.",
    "15. The method of claim 12, further comprising: after the peeling the first glass member, elevating the stage on which the target stack, from which the first glass member has been peeled off, is disposed; and peeling off a second glass member of the plurality of stacked glass members disposed at an uppermost portion of the target stack from which the first glass member has been peeled off.",
    "16. The method of claim 15, wherein the target stack further includes a film between the plurality of glass members, and the method further comprising, before the peeling the second glass member, peeling off the film from the target stack from which the first glass member has been peeled off.",
    "17. The method of claim 12, wherein the peeling member is a roller, and wherein the elevating the stage is elevating the stage such that the first glass member of the target stack disposed on the stage is in direct contact with the peeling member.",
    "18. The method of claim 17, wherein in the peeling the first glass member, the first glass member is peeled off by rotation of the peeling member.",
    "19. The method of claim 17, wherein a surface of the peeling member is covered with rubber.",
    "20. The method of claim 12, further comprising: before the peeling the first glass member, aligning the target stack, wherein in the aligning of the target stack, at a point where an imaginary plane extending from a lower surface of the first glass member and an inner surface of a discharge preventing block meet each other, an acute angle between the imaginary plane and the inner surface of the discharge preventing block ranges from 10 degrees to 20 degrees."
  ],
  "description_excerpt": "This application claims priority to Korean Patent Application No. 10-2019-0170564, filed on Dec. 19, 2019, and all the benefits accruing therefrom under 35 U.S.C. § 119, the content of which in its entirety is herein incorporated by reference.\n\nExemplary embodiments of the invention relate to a peeling apparatus and a method of manufacturing a display device using the same.\n\nA display device is a device for displaying an image, and includes a display panel, such as an organic light emitting display panel or a liquid crystal display panel. The display device may include a protective member such as a window for protecting the display panel from an external impact. In particular, the window is widely applied to portable electronic devices, such as smart phones.\n\nA base member that is used in the window includes a transparent film or glass. In particular, in a case of glass (or cells), a plurality of glass members may be transferred in a stacked state for ease of transport in a process of manufacturing a display device. Then, for a lamination process, it is desired to separate each of the plurality of glass members in a stacked state.\n\nExemplary embodiments of the invention provide a peeling apparatus capable of automatically separating and discharging a plurality of stacked glass members and films disposed between the glass members.\n\nExemplary embodiments of the invention also provide a method of manufacturing a display device using a peeling apparatus capable of automatically separating and discharging a plurality of stacked glass members and films disposed between the glass members.",
  "cpc": [
    "B32B 43/006",
    "B32B 17/10",
    "B32B 2457/20",
    "B32B 37/0038",
    "B32B 38/18",
    "B65G 59/026",
    "C03B 35/00",
    "C03B 40/00",
    "G02F 1/1303",
    "H10K 71/00"
  ],
  "ipc": [
    "B32B 17/10",
    "B32B 37/00",
    "B32B 38/18",
    "B32B 43/00"
  ],
  "assignees": [
    "Samsung Display Co Ltd"
  ],
  "inventors": [
    "Dae Ho YANG",
    "Sun Kwan Kim",
    "Jin Woo Park",
    "Sung Hoon Lee",
    "Won Ho Lee",
    "Il Soo JANG"
  ],
  "filing_date": "2020-12-18",
  "publication_date": "2023-09-19",
  "grant_date": "2023-09-19",
  "priority_date": "2019-12-19",
  "application_number": "US-202017127053-A",
  "family_id": "76438754",
  "cited_by_count": 0,
  "citations": [
    "KR940013752A",
    "US20080113486A1",
    "US20160361913A1",
    "TW201539531A"
  ]
}