Method of manufacturing flexible display apparatus

Patent metadata

Field	Value
Publication number	US-10216229-B2
Application number	US-201715402771-A
Country	US
Kind code	B2
Filing date	Jan 10, 2017
Priority date	Jan 11, 2016
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

Provided is a method of manufacturing a flexible display apparatus. The method includes: arranging a film over a window having a three-dimensional curved surface shape, the film being flexible; arranging a plurality of pressure balls over the film; and pressing the plurality of pressure balls towards the window by using a pressure plate such that the film is closely adhered onto the window according to the three-dimensional curved surface shape of the window.

First claim

What is claimed is:

1. A method of manufacturing a flexible display apparatus, the method comprising:
arranging a film over a window, the window comprising a three-dimensional curved surface shape, the film being flexible;
arranging a plurality of pressure balls over the film; and
pressing the plurality of pressure balls towards the window with a pressure using a pressure plate such that the film is adhered onto the window according to the three-dimensional curved surface shape of the window,
wherein the plurality of pressure balls comprises first pressure balls and second pressure balls stacked over the first pressure balls along a direction from the window to the pressure plate, and
the second pressure balls are configured to transfer the pressure of the pressing to the first pressure balls.

2. The method of claim 1 , wherein each of the plurality of pressure balls is between the film and the pressure plate while contacting other adjacent pressure balls.

3. The method of claim 1 , wherein only some of the plurality of pressure balls contact the pressure plate.

4. The method of claim 1 ,
wherein the plurality of pressure balls further comprises third pressure balls,
wherein only the first pressure balls contact the film, and
wherein only the second pressure balls contact the pressure plate.

5. The method of claim 1 , wherein the plurality of pressure balls have elastic properties, and
wherein the plurality of pressure balls are configured to be deformed by the pressure.

6. The method of claim 1 , further comprising arranging a plurality of lower pressure balls below the window.

7. The method of claim 6 , wherein the pressing of the plurality of pressure balls comprises pressing the plurality of pressure balls over the window towards the window using the pressure plate while pressing the plurality of lower pressure balls below the window towards the window using a lower pressure plate.

8. The method of claim 1 , further comprising arranging a plurality of additional pressure balls between the plurality of pressure balls and the pressure plate, the plurality of additional pressure balls are separated from the film by the plurality of pressure balls.

9. The method of claim 8 , wherein the plurality of additional pressure balls each have a greater diameter than the plurality of pressure balls.

10. The method of claim 8 , wherein the pressing of the plurality of pressure balls comprises moving the pressure plate in a direction to rotate the plurality of additional pressure balls contacting the pressure plate.

11. The method of claim 8 , wherein the plurality of pressure balls comprises a ferromagnetic material, and the plurality of additional pressure balls comprise a non-magnetic material.

12. The method of claim 11 , wherein a magnet is below the window.

13. The method of claim 1 , wherein the film comprises a flexible display panel comprising a display element.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Gunmo
• Park Wonsang
• Bae Jongsung

Classifications

• B29C66/81

  General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps (holding or clamping means for handling purposes B29C65/7841) · CPC title

• B29C66/814

  characterised by the design of the pressing elements, e.g. of the welding jaws or clamps · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• B30B3/00

  Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs · CPC title

• B30B3/005

  Roll constructions · CPC title