Cover window and display device including the same

Patent metadata

Field	Value
Publication number	US-2017196101-A1
Application number	US-201615384794-A
Country	US
Kind code	A1
Filing date	Dec 20, 2016
Priority date	Dec 31, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

There is provided a cover window including a first region; and second regions at both sides of the first region, wherein the first region has a stiffness being different from the second regions, and the stiffness of an interface region between the first region and the second region is gradually changed.

First claim

What is claimed is:

1 . A cover window, comprising:
a first region; and second regions at both sides of the first region, wherein the first region has a stiffness being different from the second regions, and the stiffness of an interface region between the first region and the second region is gradually changed.

2 . The cover window according to claim 1 , wherein a surface morphology in the first region, the second region and the interface region is different.

3 . The cover window according to claim 1 , wherein the stiffness of the second region is greater than the first region.

4 . The cover window according to claim 3 , further comprising:
third regions at an outer sides of the second regions; and fourth regions between each second region and each third region, wherein the stiffness of the third region is greater than the fourth region and is equal to or greater than the second region, and the stiffness of the fourth region is equal to or greater than the first region.

5 . The cover window according to claim 1 , wherein the hardness of the second region is greater than the first region.

6 . The cover window according to claim 5 , further comprising:
third regions at an outer sides of the second regions; and fourth regions between each second region and each third region, wherein the hardness of the third region is greater than the fourth region and is equal to or greater than the second region, and the hardness of the fourth region is equal to or greater than the first region.

7 . The cover window according to claim 1 , wherein the stiffness of the first region is greater than the second region.

8 . The cover window according to claim 1 , wherein the hardness of the first region is greater than the second region.

9 . The cover window according to claim 1 , wherein the first region, the second region and the interface region have substantially the same refractive index.

10 . The cover window according to claim 1 , wherein each of the first and second regions include a blocked-copolymer having first and second units, and the first unit has a stiffness being smaller than the second unit, and
wherein a mole fraction of the first unit in the first region being greater than that of the second unit in the first region, and the mole fraction of the second unit in the second region being greater than that of the first unit in the second region.

11 . The cover window according to claim 1 , wherein each of the first and second regions include a blocked-copolymer having first and second units, and the first unit has a stiffness being smaller than the second unit, and
wherein a mole fraction of the second unit in the first region being greater than that of the first unit in the first region, and the mole fraction of the first unit in the second region being greater than that of the second unit in the second region.

12 . A cover window, comprising:
a first region; and second regions at both sides of the first region, wherein the first region has a stiffness being different from the second regions, and the first region, the second region and an interface region between the first region and the second region have a different in a surface morphology.

13 . The cover window according to claim 12 , wherein the first region, the second region and the interface region have substantially the same refractive index.

14 . The cover window according to claim 12 , wherein each of the first and second regions include a blocked-copolymer having first and second units, and the first unit has a stiffness being smaller than the second unit, and
wherein a mole fraction of the first unit in the first region being greater than that of the second unit in the first region, and the mole fraction of the second unit in the second region being greater than that of the first unit in the second region.

15 . The cover window according to claim 12 , wherein each of the first and second regions include a blocked-copolymer having first and second units, and the first unit has a stiffness being smaller than the second unit, and
wherein a mole fraction of the second unit in the first region being greater than that of the first unit in the first region, and the mole fraction of the first unit in the second region being greater than that of the second unit in the second region.

16 . A display device, comprising:
a display panel; and a cover window at a surface of the display panel and including a first region and second regions at both sides of the first region, wherein the first region has a stiffness being different from the second regions, and the stiffness of an interface region between the first region and the second region is gradually changed.

17 . The display device according to claim 16 , wherein the first region and the second regions correspond to a display surface of the display panel.

18 . A display device, comprising:
a display panel including a front surface and first and second side surfaces; and a cover window including first and second regions respectively corresponding to the first and second side surfaces and a third region corresponding to the front surface, wherein the third region has a stiffness being greater than the first and second regions.

19 . The display device according to claim 18 , wherein the first to third regions have substantially the same refractive index.

20 . The display device according to claim 18 , wherein the cover window further includes: fourth and fifth regions at an outer side of the first and second regions and covering a rear surface of the display panel, and
wherein the fourth and fifth regions have the stiffness being greater than the first and second regions.

Assignees

• Lg Display Co Ltd

Inventors

• Ki Nam
• Park Jae-Hyoung
• Lee Gyu-Ho

Classifications

• G06F1/1637 Primary

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• H05K5/0017 Primary

  with operator interface units · CPC title

• H05K5/03

  Covers · CPC title

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• G02F2202/09

  inorganic glass · CPC title