Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-12016240-B2
Application number	US-201715726194-A
Country	US
Kind code	B2
Filing date	Oct 5, 2017
Priority date	Oct 17, 2016
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A display device includes a reinforced substrate; and a display layer disposed on the reinforced substrate and configured to display an image, wherein the reinforced substrate includes a first reinforced layer including a flexible region including a plurality of patterns spaced apart from one another; and a first substrate disposed on the first reinforced layer and has flexibility. A modulus of elasticity of the first reinforced layer is greater than a modulus of elasticity of the first substrate.

First claim

What is claimed is:

1. A display device comprising:
a reinforced substrate having a flexible region and a reinforced region adjacent to the flexible region;
a display layer disposed on the reinforced substrate and including a thin-film transistor, an organic light emitting display and a thin-film encapsulating layer, wherein the thin-film encapsulating layer is disposed on the organic light emitting display; and
a first barrier layer configured to block moisture or oxygen toward the display layer and disposed between the reinforced substrate and the display layer,
wherein the reinforced substrate comprises:
a first reinforced layer comprising a reinforced portion disposed in the reinforced region and a plurality of patterns disposed in the flexible region, each of the plurality of patterns being disconnected from one another by respective ones of a plurality of patterned spaces and disconnected from the reinforced portion; and
a first substrate that is disposed on the first reinforced layer and has flexibility,

wherein a modulus of elasticity of the first reinforced layer is greater than a modulus of elasticity of the first substrate,
wherein the first substrate surrounds at least three surfaces of the reinforced portion of the first reinforced layer,
wherein the organic light emitting display includes a pixel electrode including a reflective electrode, an intermediate layer disposed on the pixel electrode, and a counter electrode disposed on the intermediate layer,
wherein the organic light emitting display emits light in a direction opposite from the reinforced substrate, and
wherein the light emitted from the organic light emitting display is emitted to outside of the display device through the thin-film encapsulating layer.

2. The display device of claim 1 , wherein the first substrate surrounds at least three surfaces of the first reinforced layer including two side surfaces and an upper surface facing the first substrate.

3. The display device of claim 1 , wherein a bottom surface of the first reinforced layer is exposed without being surrounded by the first substrate.

4. The display device of claim 1 , wherein the first reinforced layer includes an inorganic material.

5. The display device of claim 1 , wherein the first reinforced layer comprises a conductive material.

6. The display device of claim 5 , wherein the conductive material comprises any one selected from a group including molybdenum (Mo), titanium (Ti), silver (Ag), carbon nanotubes (CNT), and graphene.

7. The display device of claim 1 , wherein the first pattern, the second pattern, and the third pattern have different widths.

8. The display device of claim 1 , wherein the plurality of patterns in the flexible region has different sizes and shapes.

9. The display device of claim 1 , wherein the first reinforced layer comprises a plurality of flexible regions.

10. The display device of claim 1 , wherein, in the flexible region, the first reinforced layer comprises a supporter and a convex portion protruding from the supporter.

11. The display device of claim 1 , wherein the first substrate fills the plurality of patterned spaces between adjacent patterns of the first reinforced layer in the flexible region.

12. The display device of claim 1 , further comprising:
a second substrate that is disposed on the first barrier layer and has flexibility; and
a second barrier layer disposed on the second substrate.

13. The display device of claim 1 , further comprising:
a second substrate that is disposed below the first substrate and has flexibility; and
a second barrier layer disposed on the second substrate.

14. The display device of claim 1 , further comprising a second substrate and a second reinforced layer comprising a second flexible region and surrounded by the second substrate on at least three surfaces,
wherein a modulus of elasticity of the second reinforced layer is greater than a modulus of elasticity of the second substrate.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Sunhee
• Lee Pilsuk
• Park Juchan
• Seol Younggug

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K77/111 Primary

  Flexible substrates · CPC title

• B32B27/08 Primary

  of synthetic resin · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H10K2102/311

  Flexible OLED · CPC title