Curved-surface display panel fabrication method, curved-surface display panel using same, and multi-image display device using same

• US 8,982,545 B2
• Filed: 03/02/2011
• Issued: 03/17/2015
• Est. Priority Date: 03/04/2010
• Status: Active Grant

• Current Assignee: Tovis Co., Ltd.
• Original Assignee: Tovis Co., Ltd.
• Inventors: Kim, Yong Beom, Kim, Yang Rae
• Primary Examiner(s): Norris, Jeremy C
• Assistant Examiner(s): MILAKOVICH, NATHAN J
• Application Number:
  US13/582,324
• Publication Number:
  US 20120320509A1
• Time in Patent Office: 1,476 Days
• Field of Search: 174/255, 361/679.01, 361/679.21, 445/24
• US Class Current: 361/679.21
• CPC Class Codes: B32B 17/10 of synthetic resin
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133302 Rigid substrates, e.g. inorganic substrates
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements

Abstract

A curved-surface display panel fabrication method for fabricating a curved-surface display panel using a flat display panel having a first substrate and a second substrate includes: paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses thereof to a predetermined thickness; bending the pared flat display panel to a desired curved shape; attaching a first guide member which has a shape corresponding to the desired curved shape to the first substrate with a predetermined gap from the pared outer surface thereof and attaching a second guide member with has a shape corresponding to the desired curved shape to the second substrate with a predetermined gap from the pared outer surface thereof; and forming light transmitting reinforcing layers respectively in a space between the first guide member and the first substrate and a space between the second guide member and the second substrate.

Claims

1. A curved-surface display panel fabrication method for fabricating a curved-surface display panel having a desired curved shape using a flat display panel having a first substrate and a second substrate, the method comprising:

paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses of the first substrate and the second substrate to a predetermined thickness;

bending the pared flat display panel to the desired curved shape;

attaching a first guide member, which has a shape corresponding to the desired curved shape, to the first substrate with a predetermined gap from the pared outer surface thereof and attaching a second guide member, which has a shape corresponding to the desired curved shape, to the second substrate with a predetermined gap from the pared outer surface thereof;

injecting light transmitting material respectively in a space between the first guide member and the first substrate and a space between the second guide member and the second substrate; and

curing the injected light transmitting material to form light transmitting reinforcing layers.

2. The curved-surface display panel fabrication method of claim 1, wherein the predetermined thickness is in a range of 50 to 200 μ

m.

3. The curved-surface display panel fabrication method of claim 1 further comprising attaching a polarizer on at least one outer surface of outer surfaces of the first guide member and the second guide member.

4. The curved-surface display panel fabrication method of claim 1, wherein the first guide member and the second guide member are made of glass or acrylic (PMMA, PolyMethly MethAcrylate).

5. The curved-surface display panel fabrication method of claim 1, wherein the first guide member and the second guide member each respectively comprise a spacer to maintain the predetermined gap.

6. The curved-surface display panel fabrication method of claim 5, wherein the spacers comprise side spacers which are respectively disposed at inner edges of the first guide member and the second guide member to maintain the light transmitting reinforcing layers while the light transmitting reinforcing layers are being formed.

7. The curved-surface display panel fabrication method of claim 6, wherein each of the side spacers comprises an insertion hole through which the light transmitting material for forming the light transmitting reinforcing layers is inserted.

8. The curved-surface display panel fabrication method of claim 1, wherein the first guide member and the second guide member are polarizers.

9. A curved-surface display panel fabricated by the curved-surface display panel fabrication method of claim 1.

10. A multi-image display device for realizing a multi-layer image with a depth by overlapping a plurality of two-dimensional images, comprising:

a curved-surface display panel which is fabricated by the curved-surface display panel fabrication method of claim 1; and

a flat display panel which is disposed in front of the curved-surface display panel so as to be overlapped with the curved-surface display panel in a forward-backward direction.

16. The curved-surface display panel fabrication method of claim 1, wherein the first guide member and the second guide member are made of glass or PolyMethly MethAcrylate.

11. A curved-surface display panel which is fabricated from a flat display panel having a first substrate and a second substrate facing each other, comprising:

the first substrate and the second substrate, outer surfaces of the first and second substrates being partially pared and bent to have a desired curved shape;

first and second guide members which have respectively a shape corresponding to the desired curved shape, the first and second guide members being fixed respectively to the first substrate and the second substrate in a state of being apart from the pared outer surfaces of the first substrate and the second substrate to form a space between the first guide member and the first substrate and a space between the second guide member and the second substrate; and

light transmitting reinforcing layers formed in the spaces, wherein the light transmitting reinforcing layers are respectively formed by injecting light transmitting material respectively in the space between the first guide member and the first substrate and the space between the second guide member and the second substrate, and curing the injected light transmitting material.

12. The curved-surface display panel of claim 11, wherein the guide member is a polarizer.

13. The curved-surface display panel of claim 11, wherein the first and second guide members each comprises a spacer for maintaining a distance to one of the first substrate and the second substrate.

14. The curved-surface display panel of claim 13, wherein each of the spacers comprises a side spacer which is disposed at an inner edge of one of the first guide member and the second guide member to maintain the light transmitting reinforcing layers while the light transmitting reinforcing layers are being formed.

15. The curved-surface display panel of claim 11, wherein the light transmitting reinforcing layers are in direct contact with each of the pared first and second substrates, and the first and second guide members.

17. A curved-surface display panel fabrication method for fabricating a curved-surface display panel using a flat display panel having a first substrate and a second substrate, the method comprising:

partially paring an outer surface of the first substrate so as to reduce a thickness of the first substrate to a predetermined thickness;

partially paring an outer surface of the second substrate so as to reduce a thickness of the second substrate to another predetermined thickness;

bending the pared first and second substrates to a desired curved shape;

attaching a first guide member, having a shape corresponding to the desired curved shape, to the first substrate with a predetermined gap from the pared outer surface of the first substrate;

attaching a second guide member, having a shape corresponding to the desired curved shape, to the second substrate with a predetermined gap from the pared outer surface of the second substrate;

inserting light transmitting reinforcing material in both

a space between the first guide member and the first substrate, and

a space between the second guide member and the second substrate; and

curing the injected light transmitting reinforcing material to form light transmitting reinforcing layers.

18. The curved-surface display panel fabrication method of claim 17, wherein the light transmitting reinforcing layers are in direct contact with each of the pared first and second substrates, and the first and second guide members.