Cover glass and method for fabricating the same

Patent metadata

Field	Value
Publication number	US-11773012-B2
Application number	US-202016906581-A
Country	US
Kind code	B2
Filing date	Jun 19, 2020
Priority date	Oct 24, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A method of fabricating a cover glass includes preparing a base member including a first area and a second area, wherein a surface of the base member is substantially parallel to a direction in the first area and is inclined with respect to the direction in the second area, and forming an ink layer on the surface of the base member in the second area, and forming a first print layer by removing a portion of the ink layer and forming a second print layer on the first print layer.

First claim

What is claimed is:

1. A method of fabricating a cover glass, the method comprising:
preparing a base member including a first area and a second area, wherein a surface of the base member is substantially flat throughout the first area, and a surface of the base member in the second area is inclined with respect to the surface of the base member in the first area;
forming an ink layer on the surface of the base member in the second area;
forming a first print layer by removing a portion of the ink layer; and
forming a second print layer on the first print layer.

2. The method of claim 1 , wherein the forming of the ink layer comprises:
transferring ink on the surface of the base member by a pad-printing technique; and
performing a first drying including drying the ink to form the ink layer.

3. The method of claim 2 , wherein the ink layer includes a first portion and a second portion connected to the first portion and disposed adjacent to the first area, and
the forming of the first print layer comprises removing the second portion of the ink layer.

4. The method of claim 3 , wherein the removing of the second portion of the ink layer comprises:
irradiating the first portion with UV light; and
etching the second portion to remove the second portion.

5. The method of claim 3 , wherein the removing of the second portion of the ink layer comprises directly irradiating the second portion with a laser.

6. The method of claim 5 , wherein the laser is irradiated toward the second portion from an upper portion of the surface of the base member.

7. The method of claim 5 , wherein the laser is irradiated toward the second portion from another surface of the base member that is disposed at an opposite side of the surface.

8. The method of claim 3 , wherein the forming of the second print layer is performed after removing the second portion of the ink layer.

9. The method of claim 3 , wherein the removing of the second portion of the ink layer is performed after forming the second print layer.

10. The method of claim 2 , further comprising performing a second drying including drying the first print layer and the second print layer after the forming of the second print layer.

11. The method of claim 10 , wherein the second drying is performed at a higher temperature than the first drying.

12. The method of claim 1 , further comprising bending the base member downward from the first area to have a third area in which a portion of the base member faces another surface of the base member that is disposed at an opposite side of the surface.

13. The method of claim 12 , wherein the first print layer is disposed at the portion of the base member facing the another surface in the third area.

14. The method of claim 13 , wherein the forming of the first print layer includes irradiating the ink layer with a laser from a side surface of the third area to remove at least a portion of the ink layer.

15. A method of fabricating a cover glass, the method comprising:
providing a base member comprised of a transparent material and including a first area and a second area, the second area being at a periphery of the first area, the first area having a flat surface, the second area having a surface having a shape selected from inclined, rounded and curved with respect to the first area;
forming an ink layer on a surface of the base member in the second area;
forming a first print layer by removing a portion of the ink layer; and
forming a second print layer on the first print layer, the first and second print layers being opaque and non-transparent.

16. The method of claim 15 , wherein the forming of the ink layer comprises:
transferring ink onto the surface of the base member; and
performing a first drying including drying the ink to form the ink layer.

17. The method of claim 15 , wherein the removing of the portion of the ink layer comprises:
irradiating a portion of the ink layer not to be removed with UV light; and
etching a portion of the ink layer not irradiated with UV light.

18. The method of claim 16 , wherein the first area corresponds to an image producing portion of a display device and the second area corresponds to a non-image producing non-display area of the display device, the transferring of the ink being a pad-printing technique.

19. The method of claim 15 , wherein the surface of the second area is rounded with respect to the surface of the first area.

Assignees

• Samsung Display Co Ltd

Inventors

• Shim Byoung Yul
• Lee Jung A
• Jeon Jae Seung
• Choi Beom Gyu

Classifications

• C03C17/002 Primary

  for flat glass, e.g. float glass · CPC title

• H05K5/03

  Covers · CPC title

• C03C2218/119

  by printing · CPC title

• C03C2218/33

  by etching · CPC title

• H05K5/0017

  with operator interface units · CPC title