Apparatus and method for manufacturing display device

Patent metadata

Field	Value
Publication number	US-11311979-B2
Application number	US-202117158657-A
Country	US
Kind code	B2
Filing date	Jan 26, 2021
Priority date	Jan 29, 2020
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

An apparatus for manufacturing a display device includes a moving part including a belt that circulates, a roller that circulates the belt, and at least one meandering prevention portion that moves in a first direction parallel to a direction of a rotation shaft of the roller and prevents meandering of the belt, and a polishing head disposed corresponding to the moving part, the polishing head polishing a surface of a base material disposed on a first surface of the belt. A part of the at least one meandering prevention portion faces a second surface of the belt, the second surface being a side surface of the belt.

First claim

What is claimed is:

1. A method of manufacturing a display device, the method comprising:
observing alignment marks disposed on a first surface of a belt that circulates;
comparing positions of the alignment marks with preset positions; and
adjusting a position of the belt by using a meandering prevention portion in accordance with a result of the comparing of the positions,
wherein at least part of the meandering prevention portion faces a second surface of the belt, the second surface being a side surface of the belt.

2. The method of claim 1 , wherein the adjusting of the position of the belt comprises moving the meandering prevention portion in a first direction to be in contact with the belt.

3. The method of claim 2 , wherein the meandering prevention portion linearly moves the belt in the first direction.

4. The method of claim 1 , wherein the meandering prevention portion is disposed in a region in which a moving direction of the belt changes.

5. The method of claim 1 , wherein the meandering prevention portion comprises:
a first roller of which at least a part faces the second surface; and
a first spacing adjusting portion that moves the first roller.

6. The method of claim 1 , wherein the observing of the alignment marks comprises removing a polish disposed on the alignment marks.

7. The method of claim 1 , further comprising cleaning a surface of the belt.

8. The method of claim 1 , further comprising pressing a third surface of the belt to maintain a tension of the belt, the third surface of the belt being opposite to the first surface of the belt.

9. The method of claim 1 , further comprising:
disposing a base material on the first surface; and
polishing a surface of the base material by using a polishing head.

10. The method of claim 1 , wherein the belt comprises an opening on which the base material is disposed.

Assignees

• Samsung Display Co Ltd
• Kctech Co Ltd

Inventors

• Nam Junggun
• Kang Seungik
• Kang Seungbae
• Kim Pungseok
• Yang Heesung
• Lee Keunwoo
• Cho Woojin
• Choo Byoungkwon

Classifications

• H10P72/3302

  Mechanical parts of transfer devices · CPC title

• H10P72/0428

  Apparatus for mechanical treatment or grinding or cutting · CPC title

• B24B37/20

  Lapping pads for working plane surfaces · CPC title

• B32B2457/20

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

• B65G2201/022

  Flat · CPC title