Flexible display apparatus and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-2017020007-A1
Application number	US-201615156355-A
Country	US
Kind code	A1
Filing date	May 17, 2016
Priority date	Jul 15, 2015
Publication date	Jan 19, 2017
Grant date	—

Abstract

A flexible display apparatus, including a flexible substrate including a bending area and a non-bending area; a display unit on the flexible substrate; and an encapsulation unit covering the display unit, the encapsulation unit including a first inorganic film, a second inorganic film, and an organic film between the first inorganic film and the second inorganic film, the organic film having a first thickness in the bending area and a second thickness greater than the first thickness in the non-bending area.

First claim

What is claimed is:

1 . A flexible display apparatus, comprising:
a flexible substrate including a bending area and a non-bending area; a display unit on the flexible substrate; and an encapsulation unit covering the display unit, the encapsulation unit including a first inorganic film, a second inorganic film, and an organic film between the first inorganic film and the second inorganic film, the organic film having a first thickness in the bending area and a second thickness greater than the first thickness in the non-bending area.

2 . The flexible display apparatus as claimed in claim 1 , wherein:
the non-bending area includes a first non-bending area and a second non-bending area, and the bending area is between the first non-bending area and the second non-bending area.

3 . The flexible display apparatus as claimed in claim 1 , wherein:
the bending area includes a first bending area and a second bending area, and the non-bending area is between the first bending area and the second bending area.

4 . The flexible display apparatus as claimed in claim 3 , wherein:
the first bending area has a first curvature, and the second bending area has a second curvature smaller than the first curvature.

5 . The flexible display apparatus as claimed in claim 4 , wherein the organic film in the first bending area is thinner than the organic film in the second bending area.

6 . The flexible display apparatus as claimed in claims 1 , wherein the organic film is formed according to a liquid phase deposition process.

7 . A manufacturing method of a flexible display apparatus, the method comprising:
providing a flexible substrate including a bending area and a non-bending area; forming a display unit on the flexible substrate; forming a first inorganic film covering the display unit; forming an organic film on the first inorganic film, the organic film having a first thickness in the bending area and a second thickness greater than the first thickness in the non-bending area; and forming a second inorganic film on the organic film.

8 . The manufacturing method as claimed in claim 7 , wherein:
the non-bending area includes a first non-bending area and a second non-bending area, and the bending area is between the first non-bending area and the second non-bending area.

9 . The manufacturing method as claimed in claim 7 , wherein:
the bending area includes a first bending area and a second bending area, and the non-bending area is between the first bending area and the second bending area.

10 . The manufacturing method as claimed in claim 9 , wherein:
the first bending area has a first curvature, and the second bending area has a second curvature smaller than the first curvature.

11 . The manufacturing method as claimed in claim 10 , wherein the organic film in the first bending area is thinner than the organic film in the second bending area.

12 . The manufacturing method as claimed in claims 7 , wherein the organic film is formed according to a liquid phase deposition process.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Eungseok
• Yun Wonmin
• Lee Byoungduk
• Chung Yunah
• Cho Yoonhyeung
• Ju Yongchan

Classifications

• H10D64/011

  of electrodes ohmically coupled to a semiconductor · CPC title

• H05K2201/10128

  Display · CPC title

• G06F1/1652

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• H05K3/4644 Primary

  by building the multilayer layer by layer, i.e. build-up multilayer circuits (making via holes in the insulating layers H05K3/0011; special circuit boards as base or core whereon the multilayer is built H05K3/4602) · CPC title

• H05K1/028

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · CPC title