Liquid crystal display device and method for manufacturing the same

Abstract

An LCD device and a method for manufacturing the same is disclosed, to prevent a sealant from being coagulated or disconnected at a predetermined portion, the method comprising preparing lower and upper substrates; dispensing a sealant on any one of the lower and upper substrates by a dispenser; dispensing liquid crystal on any one of the lower and upper substrates; and bonding the lower and upper substrates to each other, wherein the process of dispensing the sealant includes sequential steps of dispensing a first dummy sealant in the periphery of a main sealant pattern, dispensing the main sealant pattern after forming the first dummy sealant, and dispensing a second dummy sealant pattern in the periphery of the main sealant pattern after forming the main sealant pattern.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

FIG. 1 is a schematic view illustrating a sealant dispensing method using a dispenser according to the related art;

FIGS. 2A to 2D are perspective views illustrating a method for manufacturing an LCD device according to an embodiment of the present invention;

FIGS. 3A to 3C are schematic views of a sealant dispensing method using a dispenser according to an embodiment of the present invention; and

FIG. 4 is a perspective view of an LCD device according to an embodiment of the present invention.

Claims

1. A method for manufacturing a liquid crystal display device comprising: preparing first and second substrates;dispensing a sealant on one of the first and second substrates using a dispenser;dispensing liquid crystal on one of the first and second substrates; andbonding the first and second substrates to each other,wherein dispensing the sealant includes sequential steps of dispensing a first dummy sealant in the periphery of a main sealant pattern, dispensing the main sealant pattern after forming the first dummy sealant, and dispensing a second dummy sealant pattern in the periphery of the main sealant pattern after forming the main sealant pattern.

2. The method of claim 1, wherein the first and second dummy sealants extend from the main sealant pattern and the first dummy sealant extends in a direction different from the direction of the second dummy sealant.

3. The method of claim 1, wherein dispensing the sealant further includes: dispensing the first dummy sealant adjacent to one corner of the main sealant pattern in the periphery of the main sealant pattern wherein the main sealant pattern is substantially rectangular;dispensing the main sealant pattern after forming the first dummy sealant; anddispensing the second dummy sealant adjacent to one corner of the main sealant pattern in the periphery of the main sealant pattern after forming the main sealant pattern.

4. The method of claim 3, wherein the first and second dummy sealants extend from the main sealant pattern and the first dummy sealant extends in a direction substantially perpendicular direction of the second dummy sealant.

5. The method of claim 1, wherein the sealant includes a UV-curing sealant.

6. The method of claim 1, further comprising curing the sealant after bonding the first and second substrates to each other.

7. The method of claim 6, wherein the process of curing the sealant comprises applying UV light to the sealant.

8. The method of claim 7, wherein the process of applying UV light to the sealant is performed while covering an active region of the bonded first and second substrates with a mask.

9. The method of claim 1, wherein the sealant and the liquid crystal are formed on the different substrates.

10. A liquid crystal display device, comprising: first and second substrates facing each other;a liquid crystal layer formed between the first and second substrates; anda sealant surrounding the liquid crystal layer between the first and second substrates,wherein the sealant includes a main sealant pattern, and first and second dummy sealant patterns extended from the main sealant pattern and formed in the periphery of the main sealant pattern.

11. The device of claim 10, wherein the direction of the first dummy sealant pattern is different from the direction of the second dummy sealant pattern.

12. The device of claim 10, wherein the main sealant pattern is substantially rectangular, and the first and second dummy sealant patterns extend from one corner of the rectangular main sealant pattern.

13. The device of claim 12, wherein the first dummy sealant pattern is substantially perpendicular to the second dummy sealant pattern and is adjacent to one corner of the rectangular main sealant pattern.

14. The device of claim 10, wherein the sealant includes of a UV-curing sealant.