Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-12345972-B2
Application number	US-202117479934-A
Country	US
Kind code	B2
Filing date	Sep 20, 2021
Priority date	Mar 11, 2016
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A method of manufacturing a display apparatus that is capable of reducing manufacturing costs and a defect rate during manufacturing, and a display apparatus. The method includes forming a plurality of display units over a mother substrate; attaching a temporary protective film to a lower surface of the mother substrate; cutting the mother substrate and the temporary protective film along a periphery of each of the plurality of display units to obtain a plurality of display panels, each including a first area, a second area, and a bent area between the first area and the second area; removing the temporary protective film from the plurality of display panels; and attaching a lower protective film to a lower surface of each of the plurality of display panels so as to correspond to the first area in each display panel.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate having an outer surface and an inner surface opposite to the outer surface and comprising a bent area between a first area and a second area, the bent area being bent around a bending axis so that the inner surface of the substrate in the first area and the inner surface of the substrate in the second area at least partially face each other, and each of the first area and the second area being planar;
a display unit over the outer surface of the substrate in the first area;
a lower protective film under the inner surface of the substrate in at least a part of the first area;
an adhesive layer between the lower protective film and the inner surface of the substrate in the first area in a vertical direction normal to the outer surface of the substrate in the first area; and
a support layer between the lower protective film in the first area and the inner surface of the substrate in the second area,
wherein, in an area overlapping the first area in a plan view, a total thickness of the support layer in a thickness direction of the display apparatus is greater than a total thickness of the lower protective film in the thickness direction of the display apparatus.

2. The display apparatus of claim 1 , wherein the support layer is adhered to the lower protective film in the first area and the inner surface of the substrate in the second area.

3. The display apparatus of claim 1 , wherein a distance between the inner surface of the substrate in the first area where the support layer is located and the inner surface of the substrate in the second area where the support layer is located is less than a maximum distance between facing portions of the inner surface of the substrate in the bent area.

4. The display apparatus of claim 3 , wherein a part of the outer surface of the substrate in the bent area protrudes past a first virtual plane including the outer surface of the substrate where the support layer is located within the second area, in a direction away from the display unit.

5. The display apparatus of claim 4 , wherein another part of the outer surface of the substrate in the bent area protrudes past a second virtual plane including the outer surface of the substrate where the display unit is located, in a direction toward the display unit.

6. The display apparatus of claim 1 , wherein a contact area of the support layer with the lower protective film is different from a contact area of a surface of the support layer with the substrate in the second area.

7. The display apparatus of claim 1 , wherein a contact area of the support layer with the lower protective film is greater than a contact area of a surface of the support layer with the substrate in the second area.

8. The display apparatus of claim 1 , further comprising:
an electronic device on a portion of the outer surface of the substrate in the second area of the substrate where the support layer is located; and
a reinforcing film over the outer surface of the substrate in the second area adjacent to the electronic device.

9. The display apparatus of claim 8 , wherein the reinforcing film covers all of an exposed part of the outer surface of the substrate around the electronic device.

10. The display apparatus of claim 1 , wherein the adhesive layer is directly between the lower protective film and the inner surface of the substrate in the first area in the vertical direction normal to the outer surface of the substrate in the first area.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Yoonsun
• Kim Hyunchul
• Choi Wonsuk

Classifications

• H10K50/8445

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/8426

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/871 Primary

  Self-supporting sealing arrangements · CPC title

• H10K71/851

  Division of substrate · CPC title