Display device and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10903289-B2
Application number	US-201916714584-A
Country	US
Kind code	B2
Filing date	Dec 13, 2019
Priority date	May 19, 2017
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A display device according to an embodiment includes a substrate having a display area, and a peripheral area outside the display area including a first peripheral area adjacent to the display area, a first bending area extending from the first peripheral area, and a second peripheral area extending from the first bending area, and overlapping the first peripheral area, a display member at the display area, and including a first display area, and a second display area around the first display area, and a plurality of align keys on the substrate, wherein the first peripheral area includes a flat peripheral area corresponding to an area between the first display area and the first bending area, and a second bending area between the second display area and an end of the substrate, and wherein the plurality of align keys include a first align key at the flat peripheral area, and a second align key at the second peripheral area.

First claim

What is claimed is:

1. A method for manufacturing a display device, the method comprising:
forming a display member on a substrate having a display area, and a peripheral area that is outside of the display area;
respectively forming a first align key and a second align key at a first peripheral area and a second peripheral area, which are separated with respect to a first bending area of the substrate, the first align key being at a flat peripheral area that is flat among the first peripheral area;
attaching the display member to a window having a bent edge;
bending the first bending area to cause the first peripheral area and the second peripheral area to overlap; and
aligning the first peripheral area and the second peripheral area by using the first align key and the second align key.

2. The method of claim 1 , wherein the display area comprises a first display area, and a second display area around the first display area,
wherein the first peripheral area comprises a second bending area between the second display area and an end of the substrate, and
wherein attaching the display member to the window comprises bending the second display area and the second bending area of the substrate together.

3. The method of claim 2 , wherein the first align key is not at the second bending area or at the second display area.

4. The method of claim 2 , wherein the first bending area is under the substrate in a plane view, and wherein the second bending area is at a side of the substrate in a plane view.

5. The method of claim 2 , further comprising bending the first bending area after bending the second bending area.

6. The method of claim 2 , wherein a width of the first bending area is less than a width of the first peripheral area, and wherein a width of the second peripheral area is less than the width of the first peripheral area.

7. The method of claim 2 , further comprising attaching a protection film under the substrate, the protection film comprising a first protection film attached to a position corresponding to the first peripheral area and the display area, and a second protection film attached to a position corresponding to the second peripheral area, the first protection film and the second protection film not being attached at a position corresponding to the first bending area.

8. The method of claim 2 , wherein aligning the first peripheral area and the second peripheral area comprises:
measuring an interval between the first align key and the second align key using an alignment camera; and
determining whether the measured interval matches a set interval match.

9. The method of claim 2 , further comprising confirming that the first align key and the second align key do not overlap each other and are separated in a plane view.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Ki Wook
• Kwak Won Kyu
• Kim Kwang-Min
• Kim Dong Soo
• Moon Joong-Soo
• Park Hyun Ae
• Lee Ji-Eun
• Jin Chang Kyu

Classifications

• H10K59/10

  OLED displays · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K71/18 Primary

  using non-liquid printing techniques, e.g. thermal transfer printing from a donor sheet · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title