IP Library Granted Patent US 7,446,846
Granted Patent B2
US 7,446,846 · App. 11/321,455 · Granted Nov 4, 2008

Liquid crystal display device and fabrication method thereof

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Quick Facts
Patent No.
US 7,446,846
App. No.
11/321,455
Granted
Nov 4, 2008
Kind
B2
Abstract

A method for fabricating an LCD device includes preparing a first substrate, preparing a second substrate such that each of the first and second substrates corresponding to a plurality of panels, forming a seal pattern along an outer edge of each panel on the second substrate, forming a plurality of holes at an outer edge of the first substrate, dotting a slide preventing adhesive on the first substrate at portions corresponding to the holes, and attaching the first substrate and the second substrate.

Claims (72)

1. A method for fabricating an LCD device, comprising:

preparing a first substrate;

preparing a second substrate, each of the first and second substrates corresponding to a plurality of panels;

forming a seal pattern along an outer edge of each panel on the second substrate;

forming a plurality of holes at an outer edge of the first substrate;

dotting a slide preventing adhesive on the first substrate at portions corresponding to the holes; and

attaching the first substrate and the second substrate.

2. The method of claim 1 , further comprising forming a liquid crystal layer disposed between the first and second substrates.

3. The method of claim 2 , wherein the liquid crystal layer is formed by an injection method.

4. The method of claim 2 , wherein the liquid crystal layer is formed by a dispensing method.

5. The method of claim 1 , further comprising cutting the attached first and second substrates to divided them into a plurality of liquid crystal panels.

6. The method of claim 1 , wherein the preparing the first substrate includes:

forming a plurality of gate lines arranged in a first direction on a transparent substrate;

forming a plurality of data lines crossing over the gate lines to define a plurality of pixels; and

forming a switching device to switch each pixel at each crossing of the gate lines and data lines.

7. The method of claim 1 , wherein the preparing the second substrate includes:

forming a black matrix on a transparent substrate; and

forming a color filter.

8. The method of claim 1 , wherein the attaching the first and second substrates includes:

contacting the first substrate with the second substrate;

pressing the second substrate to introduce the adhesive into the holes; and

hardening the seal pattern to attach the first and second substrates.

9. A method for fabricating an LCD device, comprising:

preparing a first substrate;

preparing a second substrate;

forming a plurality of gate lines and gate pads arranged in a first direction on the first substrate;

forming a gate insulation film on the entire surface of the first substrate including the gate lines and the gate pads;

forming data lines crossing over the gate lines to define an image display portion including a plurality of pixels and data pads on the gate insulation film;

forming a passivation film on the entire surface of the first substrate including the data line and the data pad;

removing a portion of the gate insulation film and the passivation film to form gate and data contact holes to expose a portion of the gate pad and the data pad, respectively, and a plurality of adhesive holes formed at an outer edge of the first substrate;

forming a pixel electrode on the passivation film of the image display portion, a gate connection pad connected with the gate pad through the gate contact hole, and a data connection pad connected with the data pad through the data contact hole;

dotting a slide preventing adhesive at an upper portion of the adhesive holes;

forming a seal pattern along an outer edge of the image display portion on the second substrate;

attaching the first and second substrates; and

cutting the attached first and second substrates to obtain a plurality of separated liquid crystal panels.

10. The method of claim 9 , wherein the attaching the first and second substrates includes:

contacting the first substrate with the second substrate;

pressing the second substrate to introduce the adhesive to an inner portion of the adhesive holes; and

hardening the seal pattern to attach the first and second substrates.

11. The method of claim 9 , wherein the preparing the second substrate includes:

forming a black matrix on a transparent substrate; and

forming a color filter on the transparent substrate.

12. An intermediate product for fabricating a liquid crystal display (LCD) device, comprising:

first and second substrates defining a plurality of image display portions defined thereon, a plurality of holes formed at an outer edge of the first substrate;

a slide preventing adhesive dotted at an upper portion of the holes;

a seal pattern formed along an outer edge of each image display portion on the second substrate; and

a liquid crystal layer formed between the first and second substrates.

13. The product of claim 12 , wherein the first substrate includes:

gate lines arranged in a first direction;

data lines crossing the gate lines to define a plurality of pixels;

a switching device formed at each crossing of the gate lines and data lines to switch each pixel; and

a pixel electrode formed at each pixel.

14. The product of claim 13 , wherein the first substrate further includes a common electrode separated with a certain interval from the pixel electrode to generate an in-plane electric field within the pixel.

15. The product of claim 12 , wherein the second substrate includes:

a black matrix; and

a color filter.

16. The product of claim 15 , wherein the second substrate further includes a common electrode formed on the color filter.

17. A liquid crystal display (LCD) device, comprising:

first and second substrates attached to each other and defining a display portion, the first substrate including a plurality of holes along at least one side the first substrate;

a slide preventing adhesive dotted at an upper portion of the holes;

a seal pattern formed along an outer edge of the display portion on the second substrate; and

a liquid crystal layer formed between the first and second substrates.

18. The device of claim 17 , wherein the first substrate includes:

gate lines arranged in a first direction;

data lines crossing the gate lines to define a plurality of pixels;

a switching device formed at each crossing of the gate lines and data lines to switch each pixel; and

a pixel electrode formed at each pixel.

19. The device of claim 18 , wherein the first substrate further includes a common electrode separated with a certain interval from the pixel electrode generate an in-plane electric field within the pixel.

20. The device of claim 17 , wherein the second substrate includes:

a black matrix; and

a color filter.

21. The device of claim 20 , wherein the second substrate further includes a common electrode formed on the color filter.

Assignments (3)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2006
From: CHO, SUNG-HWAN
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 017985/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2006
From: PARK, JUNG-MU
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 017981/0509 →