Apparatus for forming printing layer, cover glass, and method of fabricating the cover glass

Patent metadata

Field	Value
Publication number	US-11932037-B2
Application number	US-202016935054-A
Country	US
Kind code	B2
Filing date	Jul 21, 2020
Priority date	Nov 12, 2019
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

A printed layer forming apparatus for a cover glass of a display device includes: a printing member including a first main body and a projection extending from one surface of the first main body, the projection having a thickness less than that of the first main body; and a cleaning member including a second main body, a first sidewall, and a second sidewall spaced apart from and opposing the first sidewall defining a space into which the projection is insertable to remove ink.

First claim

What is claimed is:

1. A method of fabricating a cover glass for a display device, the method comprising:
transferring ink to a printing member having a first main body and a projection extending from one surface of the first main body in one direction;
inserting the printing member into a first space in a cleaning member and removing at least a portion of the ink transferred to the printing member and
contacting the printing member with a base member of the cover glass and forming a printing layer on one surface of the base member,
wherein the base member comprises:
a first flat portion;
a second flat portion spaced apart from the first flat portion; and
a bending portion connecting the first flat portion and the second flat portion, the bending portion being bent in one direction,
wherein the step of forming the printing layer comprises inserting the projection in a second space defined by the first flat portion and the second flat portion such that the projection contacts one surface of the base member, and the ink remaining on the projection is printed on the one surface of the base member.

2. The method of fabricating a cover glass of claim 1 , wherein the step of transferring the ink to the printing member comprises transferring the ink only to an outer surface of the projection.

3. The method of fabricating a cover glass of claim 2 , wherein the step of removing the at least a portion of the ink comprises pressing the printing member into the space such that a center portion of the outer surface of the projection contacts an inner side of the space to remove the ink only from on the center portion of the outer surface of the spacer, thereby leaving the ink that was transferred to an edge portion of the outer surface of the projection in place.

4. The method of fabricating a cover glass of claim 1 , wherein the printing layer is formed at an edge of the one surface of the base member that faces a third space surrounded by the first flat portion, the second flat portion, and the bending portion.

5. The method of fabricating a cover glass of claim 1 , wherein:
the projection has a thickness smaller than that of the first main body, and
the first space has a width greater than the thickness of the projection.

6. The method of fabricating a cover glass of claim 5 , wherein when the projection is inserted into the first space, an outer surface of the projection is spaced from an inner side of the first space.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Beom Gyu
• Shim Byoung Yul

Classifications

• B41M1/34 Primary

  on glass or ceramic surfaces {(ink-jet printing on glass or ceramic surfaces B41M5/00)} · CPC title

• B41F17/001 Primary

  Pad printing apparatus or machines · CPC title

• B41F35/00

  Cleaning arrangements or devices {(in manifolding apparatus or the like B41L41/00)} · CPC title

• B41F17/00 Primary

  Printing apparatus or machines of special types or for particular purposes, not otherwise provided for · CPC title

• B41F16/0006 Primary

  for printing from an inked or preprinted foil or band · CPC title