Flexible display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2015266272-A1
Application number	US-201514620737-A
Country	US
Kind code	A1
Filing date	Feb 12, 2015
Priority date	Mar 18, 2014
Publication date	Sep 24, 2015
Grant date	—

Abstract

A flexible display device may include a flexible display panel and a window member. The window member may include a synthetic resin layer disposed on the surface of the flexible display panel and a glass layer disposed on the synthetic resin layer. The glass layer may have a thickness of about 25 micrometers to about 100 micrometers. The synthetic resin layer may be formed by coating a synthetic resin solution on a surface of the glass layer.

First claim

What is claimed is:

1 . A flexible display device comprising:
a flexible display panel; and a window member on a surface of the flexible display panel, the window member comprising: a synthetic resin layer on the surface of the flexible display panel; and a glass layer on the synthetic resin layer,
wherein the glass layer has a thickness ranging from about 25 micrometers to about 100 micrometers.

2 . The flexible display device as claimed in claim 1 , wherein the window member has a thickness ranging from about 50 micrometers to about 300 micrometers.

3 . The flexible display device as claimed in claim 2 , wherein the synthetic resin layer is directly coupled to the glass layer.

4 . The flexible display device as claimed in claim 2 , further comprising an adhesive layer between the synthetic resin layer and the glass layer to couple the synthetic resin layer and the glass layer.

5 . The flexible display device as claimed in claim 2 , wherein the glass layer includes aluminosilicate-based glass.

6 . The flexible display device as claimed in claim 1 , further comprising a functional coating layer on the glass layer.

7 . The flexible display device as claimed in claim 6 , wherein the functional coating layer includes at least one of an anti-fingerprint coating layer, an anti-reflection coating layer, an anti-glare coating layer, and a hard coating layer.

8 . The flexible display device as claimed in claim 1 , further comprising a touch screen and a polarizing plate,
wherein the touch screen and the polarizing plate are between the flexible display panel and the window member.

9 . The flexible display device as claimed in claim 1 , further comprising a pressure sensitive adhesive member between the window member and the flexible display panel to couple the window member and the flexible display panel.

10 . A flexible display device comprising:
a flexible display panel including a folding area in which a folding axis is defined and a peripheral area adjacent to the folding area; and a window member on a surface of the flexible display panel, the window member overlapping with the folding area and the peripheral area and including: a plurality of synthetic resin layers on the surface of the flexible display panel; and a plurality of glass layers alternately arranged with the synthetic resin layers, wherein a glass layer that is an outer surface of the window member has a thickness ranging from about 25 micrometers to about 100 micrometers.

11 . The flexible display device as claimed in claim 10 , wherein one synthetic resin layer of the plurality of synthetic resin layers is directly coupled to one glass layer of the plurality of glass layers.

12 . The flexible display device as claimed in claim 10 , further comprising an adhesive layer between one of the plurality of synthetic resin layers and one of the plurality of glass layers that are adjacent to each other.

13 . A method of manufacturing a flexible display device, comprising:
manufacturing a flexible display panel; manufacturing a window member including a synthetic resin layer and a glass layer; and coupling the flexible display panel and the window member, the manufacturing of the window member including: preparing a glass substrate including the glass layer; and forming the synthetic resin layer on the glass substrate.

14 . The method as claimed in claim 13 , wherein the forming of the synthetic resin layer includes:
coating a synthetic resin solution on a surface of the glass substrate to form a coating layer; and curing the coating layer.

15 . The method as claimed in claim 14 , wherein the curing of the coating layer includes:
curing the coating layer at a temperature of about 100 degrees for about 20 minutes; and subsequently curing the coating layer at a temperature of about 300 degrees for about 20 minutes to about 35 minutes.

16 . The method as claimed in claim 13 , wherein the forming of the synthetic resin layer includes:
providing a synthetic resin film to form the synthetic resin layer; forming an adhesive layer on a surface of the glass substrate or a surface of the synthetic resin film; and coupling the glass substrate and the synthetic resin film,
wherein the adhesive layer is between the glass substrate and the synthetic resin film.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Kyu-Taek
• Kim Kyu Young
• Nam Seungwook
• Jung Taehyeog

Classifications

• B32B2307/42

  Polarizing, birefringent, filtering · CPC title

• B32B37/24

  with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate (B32B37/15 takes precedence) · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B2037/243

  Coating · CPC title

• B32B37/1284

  Application of adhesive · CPC title