Display device

Patent metadata

Field	Value
Publication number	US-11003138-B2
Application number	US-201715616010-A
Country	US
Kind code	B2
Filing date	Jun 7, 2017
Priority date	Jun 15, 2016
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

A display device includes a display panel and a window member provided on the display panel. The window member includes a plastic window, a first hard coating layer provided on the plastic window, and a second hard coating layer provided on the first hard coating layer. A surface water contact angle of the second hard coating layer may be in a range of 90 degrees to 117 degrees.

First claim

What is claimed is:

1. A display device comprising:
a display panel; and
a window member disposed on the display panel,
wherein:
the window member comprises:
a plastic window having a pencil hardness of B to 3H;
a first hard coating layer provided on the plastic window;
a second hard coating layer contacting the first hard coating layer; and
a third hard coating layer disposed under the plastic window;

the second hard coating layer comprises a hard coating compound;
a first portion of the hard coating compound constitutes an anti-fingerprint portion and a second portion of the hard coating compound constitutes a hard coating portion;
the hard coating portion is defined between the anti-fingerprint portion and the first hard coating layer;
the hard coating portion is connected to the anti-fingerprint portion;
a surface water contact angle of the second hard coating layer is in a range of 90 degrees to 117 degrees;
the second hard coating layer has a pencil hardness of 4H to 9H;
the pencil hardness of the plastic window is lower than a pencil hardness of the second hard coating layer; and
the third hard coating layer has a pencil hardness greater than H and less than 3H.

2. The display device of claim 1 , wherein the first hard coating layer has a pencil hardness of 3H to 8H.

3. The display device of claim 1 , wherein the first hard coating layer comprises:
a first sub-hard coating layer; and
a second sub-hard coating layer disposed on the first sub-hard coating layer.

4. The display device of claim 1 , wherein a weight of the hard coating portion is greater than a weight of the anti-fingerprint portion.

5. The display device of claim 1 , wherein the second hard coating layer comprises:
a hard coating layer; and
an anti-fingerprint layer disposed on the hard coating layer,
wherein:
the hard coating layer is formed of the hard coating portion; and
the anti-fingerprint layer is formed of the anti-fingerprint portion.

6. The display device of claim 1 , wherein the window member is flat.

7. The display device of claim 1 , wherein the window member is bent.

8. The display device of claim 1 , wherein the display device is selected from a group consisting of a portable phone, a television, a computer, a wearable display device, a rollable display device, a foldable display device, an automotive display device, and a decorative display device.

Assignees

• Samsung Display Co Ltd

Inventors

• Cho Jonghwan
• KIM Hangyeol
• Seo Hyunseung
• Yoon Daeho
• Jung Jaehoon

Classifications

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• G06F1/1652

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

• G02F1/133305 Primary

  Flexible substrates, e.g. plastics, organic film · CPC title

• G02F2201/50

  Protective arrangements · CPC title

• G09F9/00

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title