Liquid crystal display device having column spacers and method of fabricating the same

• US 7,391,493 B2
• Filed: 12/12/2002
• Issued: 06/24/2008
• Est. Priority Date: 12/14/2001
• Status: Expired due to Term

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kim, Jong Woo
• Primary Examiner(s): NGO, HUYEN LE
• Application Number:
  US10/316,897
• Publication Number:
  US 20030112404A1
• Time in Patent Office: 2,021 Days
• Field of Search: 349/153, 349/155, 349/190, 349/106
• US Class Current: 349/155
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells

Abstract

A liquid crystal display device and a method of fabricating the same are disclosed in the present invention. The liquid crystal display device includes first and second substrates facing into each other, a sealant outside a liquid crystal display panel region between the first and second substrates, a first column spacer surrounded by the sealant, and a liquid crystal layer between the first and second substrates.

Claims

1. A liquid crystal display device, comprising:

a first substrate including a thin film transistor array;

a second substrate facing with the first substrate, wherein the second substrate has a color filter array including a black matrix layer, a color filter layer and a common electrode;

a sealant outside a liquid crystal display panel region between the first and second substrates, the sealant being free of a glass fiber;

a first column spacer completely embedded in the sealant, wherein the first column spacer is formed on the common electrode on the second substrate; and

a liquid crystal layer between the first and second substrates;

wherein the sealant completely surrounds the perimeter of the liquid crystal display panel region.

2. The device of claim 1, wherein the sealant is a photo-hardening sealant.

3. The device of claim 1, wherein the sealant is a mixture of a thermo-hardening sealant and a photo-hardening sealant.

4. The device of claim 1, further comprising an alignment layer on at least one of the first and second substrates.

5. The device of claim 1, further comprising a second column spacer in the liquid crystal display panel region.

6. The device of claim 5, wherein the first and second column spacers are formed at the same time.

7. The device of claim 5, wherein the first and second column spacers are formed of the same material.

8. The device of claim 1, wherein the first substrate has a thin film transistor (TFT) array including a plurality of gate lines, a plurality of data lines, a plurality of thin film transistors, and a plurality of pixel electrodes.