Peeling apparatus and method of manufacturing display device using the same

Patent metadata

Field	Value
Publication number	US-11760079-B2
Application number	US-202017127053-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 19, 2019
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A peeling apparatus includes a water tank, a stage disposed in the water tank, a peeling member disposed above the stage, and a discharge preventing block disposed in the water tank and disposed outside the stage, wherein a height of the discharge preventing block is greater than a height of the stage.

First claim

What is claimed is:

1. A peeling apparatus comprising:
a water tank including a bottom surface and opposite outer walls being in contact with and extending from the bottom surface;
a stage disposed in the water tank;
a peeling member disposed above the stage; and
a discharge preventing block disposed in the water tank, disposed outside the stage, extending from the bottom surface and interposed between the opposite outer walls,
wherein a height of the discharge preventing block is greater than a height of the stage.

2. The peeling apparatus of claim 1 , further comprising:
water filled in the water tank.

3. The peeling apparatus of claim 2 , wherein the stage, the discharge preventing block and a lower portion of the peeling member are immerged in the water.

4. The peeling apparatus of claim 1 , wherein the peeling member is a roller which includes a surface covered with rubber.

5. The peeling apparatus of claim 4 , wherein a height of a lowermost end of the peeling member is lower than a height of an uppermost end of the discharge preventing block.

6. The peeling apparatus of claim 4 , wherein a frictional member is disposed on at least portion of the surface of the peeling member.

7. The peeling apparatus of claim 1 , wherein the discharge preventing block includes a base portion having a uniform width and a tip portion connected to the base portion and having a width smaller than the width of the base portion.

8. The peeling apparatus of claim 7 , wherein a width of the tip portion decreases toward an upper end thereof.

9. The peeling apparatus of claim 8 , wherein an inner surface of the tip portion has a rounded shape.

10. The peeling apparatus of claim 1 , further comprising:
a sub-peeling member including a surface covered with rubber, the sub-peeling member being disposed above the stage, and a shape of the sub-peeling member is identical to a shape of the peeling member.

11. The peeling apparatus of claim 10 , wherein the peeling member and the sub-peeling member have a same height.

12. A method of manufacturing a display device, the method comprising:
disposing a target stack including a plurality of stacked glass members on a stage;
elevating the stage on which the target stack is disposed; and
peeling off a first glass member of the plurality of stacked glass members disposed at an uppermost portion of the target stack using a peeling member and a discharge preventing block,
wherein the peeling the first glass member is performed in a water tank including a bottom surface and opposite outer walls being in contact with and extending from the bottom surface and filled with water, and
the discharge preventing block is disposed in the water tank, is disposed outside the stage, extends from the bottom surface and is interposed between the opposite outer walls.

13. The method of claim 12 , wherein in the peeling the first glass member, a temperature of the water ranges from 70 degrees Celsius to 90 degrees Celsius.

14. The method of claim 12 , wherein the peeling the first glass member is performed while at least a portion of the peeling member, the stage and the target stack are immersed in the water.

15. The method of claim 12 , further comprising: after the peeling the first glass member,
elevating the stage on which the target stack, from which the first glass member has been peeled off, is disposed; and
peeling off a second glass member of the plurality of stacked glass members disposed at an uppermost portion of the target stack from which the first glass member has been peeled off.

16. The method of claim 15 , wherein the target stack further includes a film between the plurality of glass members, and
the method further comprising, before the peeling the second glass member, peeling off the film from the target stack from which the first glass member has been peeled off.

17. The method of claim 12 , wherein the peeling member is a roller, and
wherein the elevating the stage is elevating the stage such that the first glass member of the target stack disposed on the stage is in direct contact with the peeling member.

18. The method of claim 17 , wherein in the peeling the first glass member, the first glass member is peeled off by rotation of the peeling member.

19. The method of claim 17 , wherein a surface of the peeling member is covered with rubber.

20. The method of claim 12 , further comprising: before the peeling the first glass member,
aligning the target stack,
wherein in the aligning of the target stack, at a point where an imaginary plane extending from a lower surface of the first glass member and an inner surface of a discharge preventing block meet each other, an acute angle between the imaginary plane and the inner surface of the discharge preventing block ranges from 10 degrees to 20 degrees.

Assignees

• Samsung Display Co Ltd

Inventors

• Yang Dae Ho
• Kim Sun Kwan
• Park Jin Woo
• Lee Sung Hoon
• Lee Won Ho
• Jang Il Soo

Classifications

• B65G59/026 Primary

  with a stepwise upward movement of the stack · CPC title

• B32B43/006 Primary

  Delaminating · CPC title

• C03B40/00 Primary

  Preventing adhesion between glass and glass or between glass and the means used to shape it {, hold it or support it} · CPC title

• B32B17/10

  of synthetic resin · CPC title

• B32B2457/20

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