LIQUID CRYSTAL DISPLAY

• US 20080100781A1
• Filed: 10/25/2007
• Published: 05/01/2008
• Est. Priority Date: 10/26/2006
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Dae H.O. Choo, Yang Ahn, Yeong Yu
• Inventors: Yu, Yeong, Ahn, Yang, CHOO, Dae Ho
• Granted Patent: US 8,081,273 B2
• Time in Patent Office: Days
• US Class Current: 349/96
• CPC Class Codes: G02F 1/133536 Reflective polarizers G02F1/13362 takes precedence
• CPC Class Codes: G02F 1/133548 Wire-grid polarisers
• CPC Class Codes: G02F 1/133565 inside the LC elements, i.e. between the cell substrates

Abstract

The present invention relates to a liquid crystal display (LCD) and a method of manufacturing the same. In the present invention, a wire grid polarizing pattern is formed on at least one of thin film transistor and color filter substrates in a manufacturing process thereof. According to the present invention, the thickness of an LCD panel can be reduced as compared with a method of attaching an existing polarizer to an LCD panel, and the wire grid polarizing pattern can be built in an LCD panel without increasing the number of masking processes.

Claims

1. A liquid crystal display (LCD), comprising:

upper and lower substrates with predetermined element layers respectively formed thereon; and

a liquid crystal layer interposed between the upper and lower substrates,

wherein a wire grid polarizing pattern with a predetermined line width and interval is formed on at least one of the upper and lower substrates.

2. The LCD as claimed in claim 1, wherein the wire grid polarizing pattern is formed on a surface of each of the upper and lower substrates.

3. The LCD as claimed in claim 1, wherein the wire grid polarizing pattern is formed on the same plane as the element layer of the upper or lower substrate.

4. The LCD as claimed in claim 1, further comprising a light conversion layer formed under the at least one of the upper and lower substrates.

5. A liquid crystal display (LCD), comprising:

a thin film transistor (TFT) substrate having a gate line extending in one direction on a first substrate, a data line extending in a direction perpendicular to the gate line and a pixel electrode at a pixel region defined by the gate and data lines; and

a color filter substrate having a black matrix formed to correspond to a region except the pixel region, a color filter formed corresponding to the pixel region and a common electrode,

wherein a wire grid polarizing pattern with a predetermined line width and interval is formed on at least one substrate of the TFT and color filter substrates.

6. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is formed of a reflection material.

7. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is formed under the gate line.

8. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is formed on the same plane as the gate line.

9. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is formed on the same plane as the data line.

10. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is primarily formed under the gate line and secondarily formed on the same plane as the gate line.

11. The LCD as claimed in claim 10, wherein the secondarily formed wire grid polarizing pattern is formed on a space between regions in which the primarily formed wire grid polarizing pattern is formed.

12. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is primarily formed under the gate line and secondarily formed on the same plane as the data line.

13. The LCD as claimed in claim 12, wherein the secondarily formed wire grid polarizing pattern is formed on a space between regions in which the primarily formed wire grid polarizing pattern is formed.

14. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is primarily formed on the same plane as the gate line and secondarily formed on the same plane as the data line.

15. The LCD as claimed in claim 14, wherein the secondarily formed wire grid polarizing pattern is formed on a space between regions in which the primarily formed wire grid polarizing pattern is formed.

16. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is formed under the black matrix.

17. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is formed on the same plane as the black matrix.

18. The LCD as claimed in claim 5, wherein the wire grid polarizing pattern is primarily formed under the black matrix and secondarily formed on the same plane as the black matrix.

19. The LCD as claimed in claim 16, wherein the secondarily formed wire grid polarizing pattern is formed on a space between regions in which the primarily formed wire grid polarizing pattern is formed.

20. The LCD as claimed in claim 5, further comprising a light conversion layer formed under the at least one of the upper and lower substrates.

21. The LCD as claimed in claim 18, wherein the light conversion layer is formed on a predetermined substrate or thin film and attached to a bottom surface of at least one of the first and second substrates.

22. The LCD as claimed in claim 18, wherein the light conversion layer is formed on a bottom surface of at least one of the first and second substrates by depositing a predetermined film thereon.