Cover window and display apparatus having the same

Patent metadata

Field	Value
Publication number	US-12240201-B2
Application number	US-202217674215-A
Country	US
Kind code	B2
Filing date	Feb 17, 2022
Priority date	Aug 9, 2021
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A cover window includes a glass fiber composite layer including a first glass fiber layer and a first glass disposed on a first surface of the glass fiber composite layer. The first glass fiber layer includes unidirectional glass fibers apart from each other and each extending in a first direction, and a modulus of the first glass fiber layer in the first direction is greater than a modulus of the first glass fiber layer in a second direction perpendicular to the first direction.

First claim

What is claimed is:

1. A cover window comprising:
a glass fiber composite layer including a first glass fiber layer; and
a first glass disposed on a first surface of the glass fiber composite layer,
wherein the first glass fiber layer comprises a resin and unidirectional glass fibers apart from each other,
wherein each of the unidirectional glass fibers extends in a first direction,
wherein a volume ratio of the resin included in the first glass fiber layer is about 10% or greater and about 30% or less,
wherein a volume ratio of the unidirectional glass fibers included in the first glass fiber layer is about 70% or more and about 90% or less,
wherein an elastic modulus of the first glass fiber layer in the first direction is greater than an elastic modulus of the first glass fiber layer in a second direction perpendicular to the first direction.

2. The cover window of claim 1 , wherein the glass fiber composite layer further comprises a second glass fiber layer including woven glass fibers.

3. The cover window of claim 2 , wherein the first glass fiber layer is between the first glass and the second glass fiber layer.

4. The cover window of claim 2 , wherein the second glass fiber layer is between the first glass and the first glass fiber layer.

5. The cover window of claim 2 , wherein
the first glass fiber layer comprises a first-first glass fiber layer and a second-first glass fiber layer, and
the second glass fiber layer is between the first-first glass fiber layer and the second-first glass fiber layer.

6. The cover window of claim 2 , wherein
the second glass fiber layer comprises a first-second glass fiber layer and a second-second glass fiber layer, and
the first glass fiber layer is between the first-second glass fiber layer and the second-second glass fiber layer.

7. The cover window of claim 2 , wherein a thickness of the first glass fiber layer is greater than a thickness of the second glass fiber layer.

8. The cover window of claim 1 , wherein
the first glass includes a plurality of trenches apart from each other, and
each of the plurality of trenches includes unidirectional glass fibers extending in the first direction.

9. The cover window of claim 1 , further comprising:
a second glass disposed on a second surface of the glass fiber composite layer.

10. The cover window of claim 1 , wherein
the cover window comprises a first unfolding area, a second unfolding area, and a folding area therebetween, and
the glass fiber composite layer is disposed in at least the folding area.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Youngdo
• Kim Hyukhwan
• Oh Hyunseok
• Lee Kangwoo

Classifications

• B32B17/02

  in the form of fibres or filaments · CPC title

• B32B2457/20

  Displays, e.g. liquid crystal displays, plasma displays · CPC title

• B32B2260/021

  Fibrous or filamentary layer · CPC title

• B32B2250/04

  4 layers · CPC title

• B32B2250/03

  3 layers · CPC title