Liquid crystal display

• US 8,081,273 B2
• Filed: 10/25/2007
• Issued: 12/20/2011
• Est. Priority Date: 10/26/2006
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choo, Dae Ho, Ahn, Yang Suk, Yu, Yeong Hee
• Primary Examiner(s): Kianni, K. Cyrus
• Application Number:
  US11/924,533
• Publication Number:
  US 20080100781A1
• Time in Patent Office: 1,517 Days
• Field of Search: 349/96, 349/100
• 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:

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 on a second substrate, a color filter formed corresponding to the pixel region and a common electrode,

wherein a first wire grid polarizing pattern is formed between the gate line and the first substrate, and

wherein a second wire grid polarizing pattern is formed between the black matrix and the second substrate.

2. The LCD as claimed in claim 1, wherein the first to third wire grid polarizing pattern is formed of a reflection material.

3. The LCD as claimed in claim 1, wherein a third wire grid polarizing pattern is formed on the same plane as the gate line.

4. The LCD as claimed in claim 3, wherein the third wire grid polarizing pattern is formed on a space between regions in which the first wire grid polarizing pattern is formed.

5. 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.

6. The LCD as claimed in claim 1, wherein a fourth wire grid polarizing pattern formed on the same plane as the black matrix, wherein the fourth wire grid polarizing pattern is formed on a space between regions in which the second wire grid polarizing pattern is formed.

7. 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 first wire grid polarizing pattern is formed between the gate line and the first substrate,

wherein a second wire grid polarizing pattern is formed on the color filter substrate,

wherein a third wire grid polarizing pattern is formed on the same plane as the gate line, and

wherein the third wire grid polarizing pattern is formed on a space between regions in which the first wire grid polarizing pattern is formed.

8. 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 first wire grid polarizing pattern is formed between the gate line and the first substrate,

wherein a second wire grid polarizing pattern is formed on the color filter substrate, and

wherein a third wire grid polarizing pattern is formed on the same plane as the gate line.