Manufacturing apparatus of flexible display device and manufacturing method using the same

• US 10,647,066 B2
• Filed: 01/29/2019
• Issued: 05/12/2020
• Est. Priority Date: 04/12/2018
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Cheul Jin, Kim, Da Woon, Park, Jong Deok, Jung, Suk Won
• Primary Examiner(s): Quarterman, Kevin
• Application Number:
  US16/260,109
• Publication Number:
  US 20190315072A1
• Time in Patent Office: 469 Days
• CPC Class Codes: B29C 66/8145 characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps B29C66/816 and B29C66/818 take precedence; adaptable for making articles or joints of different dimensions B29C66/841
• CPC Class Codes: B30B 13/00 Methods of pressing not special to the use of presses of any one of the preceding main groups
• CPC Class Codes: B30B 3/00 Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
• CPC Class Codes: G02F 1/1303 Apparatus specially adapted to the manufacture of LCDs
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G09F 9/301 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A manufacturing apparatus of a flexible display device, including: a main chamber in which a display device is mounted; an auxiliary chamber configured to inject a first pressing material having fluidity into the main chamber; and a driving portion configured to rotate the main chamber.

Claims

1. A manufacturing apparatus of a flexible display device, comprising:

a main chamber configured to mount a display device;

an auxiliary chamber configured to inject a first pressing material having fluidity into the main chamber; and

a driving portion configured to rotate the main chamber.

2. The manufacturing apparatus of the flexible display device of claim 1, wherein

the first pressing material comprises at least one of a liquid and a metal ball.

3. The manufacturing apparatus of the flexible display device of claim 2, wherein:

the first pressing material comprises the liquid and the metal ball;

a specific gravity of the liquid is 0.8 to 1.0; and

a specific gravity of the metal ball is equal to or greater than 2.5.

4. The manufacturing apparatus of the flexible display device of claim 2, wherein

the liquid comprises at least one of mercury, a lubricating oil, and water.

5. The manufacturing apparatus of the flexible display device of claim 1, wherein the driving portion is configured to rotate the main chamber at a first speed or a second speed.

6. The manufacturing apparatus of the flexible display device of claim 5, wherein

the second speed is greater than the first speed.

7. The manufacturing apparatus of the flexible display device of claim 5, wherein:

when the main chamber rotates at the first speed, the first pressing material is positioned at a central portion of the main chamber; and

when the main chamber rotates at the second speed, the first pressing material is positioned at a peripheral portion of the main chamber.

8. The manufacturing apparatus of the flexible display device of claim 1, further comprising:

an inlet configured to inject the first pressing material into the main chamber; and

an outlet configured to remove the first pressing material from the main chamber.

9. The manufacturing apparatus of the flexible display device of claim 1, wherein

the manufacturing apparatus of the flexible display device comprises a plurality of main chambers.

10. A method of manufacturing a flexible display device, comprising:

mounting a display panel and a window in a main chamber in a provisionally combined state;

injecting a first pressing material having fluidity into the main chamber;

rotating the main chamber at a first speed; and

rotating the main chamber at a second speed.

11. The method of claim 10, wherein

the first pressing material includes the liquid and the metal ball,

a specific gravity of the liquid is 0.8 to 1.0, and

a specific gravity of the metal ball is equal to or greater than 2.5.

12. The method of claim 10, wherein the first speed is slower than the second speed.

13. The method of claim 10, wherein each of the display panel and the window comprises:

a flat portion; and

a lateral portion forming a predetermined angle with the flat portion.

14. The method of claim 13, wherein, in the rotating of the main chamber at the first speed, the first pressing material overlaps the flat portion of the display panel and the flat portion of the window.

15. The method of claim 13, wherein, in the rotating of the main chamber at the second speed, the first pressing material is positioned to be adjacent to the respective lateral portions.

16. The method of claim 10, wherein the first pressing material moves from the flat portions of the display panel and the window to the lateral portions thereof.

17. The method of claim 10, further comprising, after the first pressing material is mounted, applying pressure to the inside of the main chamber.

18. The method of claim 10, further comprising removing the first pressing material from the main chamber.

19. A method of manufacturing a flexible display device, comprising:

mounting a display panel and a window in a main chamber in a provisionally combined state;

injecting a first pressing material having fluidity into the main chamber; and

rotating the main chamber at a first speed.

20. The method of claim 19, wherein the first pressing material comprises at least one of a liquid and a metal ball.