IP Library Granted Patent US 7,847,891
Granted Patent B2
US 7,847,891 · App. 11/989,898 · Granted Dec 7, 2010

Liquid crystal display

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Quick Facts
Patent No.
US 7,847,891
App. No.
11/989,898
Granted
Dec 7, 2010
Kind
B2
Abstract

A liquid crystal display is provided. The liquid crystal display includes a first substrate and a second substrate facing and spaced apart from each other in a predetermined distance, in which the second substrate has a first area in which color filters are formed over a plurality of pixel regions and a second area in which the color filters are formed at each of the plurality of pixel regions.

Claims (32)

1. A liquid crystal display comprising:

a first substrate; and

a second substrate facing and spaced apart from the first substrate at a predetermined distance,

wherein the second substrate comprises:

an insulating substrate;

a black matrix formed on the insulating substrate;

a first area in which color filters are formed over a plurality of pixel regions, the first area being formed at non-display regions other than display regions where images are displayed;

a second area in which the color filters are formed at each of the plurality of pixel regions, the second area being formed at the display regions;

a first column spacer formed on a color filter in the first area so as to overlap with the black matrix and the color filter; and

a second column spacer formed on the black matrix in the second area.

2. The liquid crystal display of claim 1 , wherein a predetermined height difference is created between a top end of the first column spacer and a top end of the second column spacer.

3. The liquid crystal display of claim 2 , wherein the predetermined height difference is substantially the same as a thickness of the color filter.

4. The liquid crystal display of claim 1 , further comprising an overcoat layer between the color filter and the column spacers.

5. The liquid crystal display of claim 4 , wherein a predetermined height difference is created between a top end of the first column spacer and a top end of the second column spacer.

6. The liquid crystal display of claim 5 , wherein the predetermined height difference is approximately 60% of the thickness of the color filter.

7. The liquid crystal display of claim 4 , further comprising a common electrode between the overcoat layer and the column spacers.

8. A liquid crystal display comprising:

a first substrate; and

a second substrate facing and spaced apart from the first substrate at a predetermined distance,

wherein the second substrate comprises:

an insulating substrate;

a gate line formed on the insulating substrate in a transverse direction;

a data line insulated from the gate line and extending in a longitudinal direction to intersect the gate line;

a pixel electrode formed at each pixel defined at an intersection of the gate line and the data line;

a thin film transistor connected to the gate line, the data line and the pixel electrode;

a first area in which color filters are formed over a plurality of pixel regions, the first area being formed at non-display regions other than display regions where images are displayed;

a first column spacer formed on a color filter in the first area so as to overlap with the gate line;

a second area in which the color filters are formed at each of the plurality of pixel regions, the second area being formed at the display regions; and

a second column spacer formed to overlap with the gate line in the second area.

9. The liquid crystal display of claim 8 , wherein a predetermined height difference is created between a top end of the first column spacer and a top end of the second column spacer.

10. The liquid crystal display of claim 9 , wherein the predetermined height difference is substantially the same as a thickness of the color filter.

11. The liquid crystal display of claim 8 , further comprising a common electrode producing a lateral electric field together with the pixel electrode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029045/0860 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2008
From: KIM, SUN-MI; JEONG, JI-YOUNG; LEE, YUN-SEOK; YANG, SEOK-YOON
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 020608/0652 →