Flexible display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10319801-B2
Application number	US-201715676468-A
Country	US
Kind code	B2
Filing date	Aug 14, 2017
Priority date	Aug 18, 2016
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

Provided is a flexible display apparatus in which flexibility is secured and reliability of products is improved, and a method of manufacturing the same. The flexible display apparatus includes a display panel including a flexible area and a non-flexible area and having one surface and the other surface opposite to the one surface; a protective film attached to the one surface of the display pane; a first adhesive layer interposed between the flexible area of the display panel and the protective film and configured to have a first storage modulus; and a second adhesive layer interposed between the non-flexible area of the display panel and the protective film and configured to have a second storage modulus.

First claim

What is claimed is:

1. A flexible display apparatus comprising:
a display panel including a flexible area and a non-flexible area and having a one surface and another surface opposite to the one surface;
a protective film attached to the one surface of the display panel;
a first adhesive layer interposed between the flexible area of the display panel and the protective film and having a first storage modulus; and
a second adhesive layer interposed between the non-flexible area of the display panel and the protective film and having a second storage modulus,
wherein the display panel includes a display unit and a pad unit,
wherein the display unit is located in the flexible area of the display panel, and the pad unit is located in the non-flexible area of the display panel,
wherein the display unit has flexibility in all regions;
wherein the first adhesive layer is in contact with the flexible area of the display unit and the protective film.

2. The flexible display apparatus of claim 1 , wherein
the first storage modulus is less than the second storage modulus.

3. The flexible display apparatus of claim 2 , wherein
at room temperature, the first storage modulus is 1 MPa or less and the second storage modulus is 10 MPa or more.

4. The flexible display apparatus of claim 1 , wherein
the first adhesive layer and the second adhesive layer form one layer.

5. The flexible display apparatus of claim 1 , wherein
the protective film comprises a first protective film and a second protective film, a first adhesive layer is interposed between the display panel and the first protective film, and a second adhesive film is interposed between the display panel and the second protective film layer.

6. The flexible display apparatus of claim 5 , wherein
the first and second protective films are located on a same layer and are separated from each other.

7. The flexible display apparatus of claim 5 , wherein
the first and second adhesive layers are located on a same layer and are separated from each other.

8. The flexible display apparatus of claim 5 , wherein
the first storage modulus is less than the second storage modulus.

9. The flexible display apparatus of claim 5 , wherein
the second adhesive layer is formed to have a thickness less than a thickness of the first adhesive layer.

10. The flexible display apparatus of claim 9 , wherein
the second adhesive layer has a thickness of about 15 μm or less.

Assignees

• Samsung Display Co Ltd

Inventors

• Kishimoto Hirotsugu
• Kim Youngji
• Park Hyunggyu
• Oh Soohee
• Won Seonggeun

Classifications

• H01L51/0097

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L27/3276 Primary

  Electricity · mapped topic

• H10K71/00 Primary

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title