Method for fabrication of curved-surface display panel

Patent metadata

Field	Value
Publication number	US-9581844-B2
Application number	US-201113822671-A
Country	US
Kind code	B2
Filing date	Aug 25, 2011
Priority date	Sep 16, 2010
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

A curved-surface display panel fabrication method for fabricating a curved display panel having a desired curved shape 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; and attaching a reinforcing plate having the same shape with the desired curved shape and light transmitting characteristics to the display panel using an adhesive layer which is formed on at least a portion of edge portions of the display panel in a state that the pared flat display panel is bent to the desired curved shape.

First claim

The invention claimed is:

1. A curved-surface display panel fabrication method for fabricating a curved display panel having a desired curved shape using a flat display panel having a first substrate and a second substrate comprising:
partially paring portions of outer surfaces of the first substrate and the second substrate, which are to be bent to form the desired curved shape, so as to reduce thicknesses thereof to predetermined thicknesses and thereby form a pared display panel, in the paring
first edge portions of the outer surfaces of the first substrate and the second substrate, which are not to be bent to form the desired curved shape, are not pared, and
second edge portions of the outer surfaces of the first substrate and the second substrate, which are to be bent to form the desired curved shape formed by the portions of the outer surfaces, are pared to ends thereof;
bending the outer surfaces of the pared display panel to the desired curved shape by bending the second edge portions to the desired curved shape but not the first edge portions;
after the paring, forming a reinforcing strip along the second edge portions in a state that the pared display is bent to the desired curved shape, the reinforcing strip extending continuously along an entire length of the second edge portions; and
after the forming a reinforcing strip, attaching a reinforcing plate, having the same shape with the desired curved shape and light transmitting characteristics, to the pared display panel using an adhesive layer which is formed on at least a portion of the second edge portions in a state that the pared display panel is bent to the desired curved shape, the reinforcing plate being attached to the pared display panel by the adhesive layer to directly contact the first edge portions, which are not pared, in a state where the reinforcing plate is spaced from at least one of the second edge portions of the outer surfaces of the first and second substrates.

2. The curved-surface display panel fabrication method of claim 1 , wherein the adhesive layer is formed along the second edge portions to form a shape of a closed figure.

3. The curved-surface display panel fabrication method of claim 2 , wherein the adhesive layer is formed of OCA (optically clear adhesive).

4. The curved-surface display panel fabrication method of claim 1 , the adhesive layer is formed of OCA (optically clear adhesive).

5. The curved-surface display panel fabrication method of claim 1 , further comprising attaching a reinforcing layer, that has light transmitting characteristics, in a space between the reinforcing plate and one selected from the group consisting of the first substrate and the second substrate.

6. The curved-surface display panel fabrication method of claim 1 , further comprising attaching a polarizer on one or more of the pared outer surfaces of the first substrate and the second substrate.

7. The curved-surface display panel fabrication method of claim 1 , wherein the reinforcing strip is formed by curing an ultraviolet (UV) ray curing resin.

8. The curved-surface display panel fabrication method of claim 1 , wherein a longitudinal axis of the reinforcing strip extends parallel to a direction along which the entire length of the second edge portions extends.

9. The curved-surface display panel fabrication method of claim 1 , wherein an upper surface of the reinforcing strip is flush with the first edge portions.

10. A method for fabricating a curved display panel, having a desired curved shape, from a flat display panel having first and second substrates, the method comprising:
paring the first substrate and the second substrate, which are to be bent to form the desired curved shape, so that
first edge portions of outer surfaces of the first substrate and the second substrate, which are not to be bent to form the desired curved shape, are not pared, and
second edge portions of the outer surfaces of the first substrate and the second substrate, which are to be bent to form the desired curved shape, are pared to ends thereof;
bending the pared second edge portions to the desired curved shape but not the first edge portions;
forming a reinforcing strip along the second edge portions while the second edge portions are bent to the desired curved shape, the reinforcing strip extending continuously along an entire length of the second edge portions; and
after the forming a reinforcing strip, attaching a reinforcing plate, having the same shape with the desired curved shape and light transmitting characteristics, to the first and second substrates using an adhesive layer which is formed on at least a portion of the second edge portions and while the second edge portions are bent to the desired curved shape, the reinforcing strip directly contacting the first edge portions so that the reinforcing plate is spaced from at least one of the second edge portions of the outer surfaces of the first and second substrates.

11. The method of claim 10 , wherein a longitudinal axis of the reinforcing strip extends parallel to a direction along which the entire length of the second edge portions extends.

12. The method of claim 10 , wherein an upper surface of the reinforcing strip is flush with the first edge portions.

Assignees

• Kim Yang-Rae
• Kim Hwan-Jin
• Lee Jin-Woo
• Tovis Co Ltd

Inventors

• Kim Yang-Rae
• Kim Hwan-Jin
• Lee Jin-Woo

Classifications

• B32B37/02

  characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations · CPC title

• G02F2001/133354

  Physics · mapped topic

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• B32B2309/105

  Thickness · CPC title

• Y10T156/1064

  Partial cutting [e.g., grooving or incising] · CPC title