IP Library Granted Patent US 8,390,769
Granted Patent B2
US 8,390,769 · App. 12/842,163 · Granted Mar 5, 2013

Liquid crystal display

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Quick Facts
Patent No.
US 8,390,769
App. No.
12/842,163
Granted
Mar 5, 2013
Kind
B2
Abstract

A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a gate line formed on the substrate, a data line intersecting the gate line and including a source electrode, a drain electrode facing the source electrode, a passivation layer formed on the data line and the drain electrode, a color filter formed on the passivation layer, a cover formed on the color filter and having a contact hole exposing the drain electrode, and a pixel electrode formed on the cover and connected to the drain electrode through the contact hole, wherein the cover includes a dummy hole exposing the color filter.

Claims (57)

1. A liquid crystal display comprising:

a substrate;

a gate line formed on the substrate;

a data line intersecting the gate line and including a source electrode;

a drain electrode facing the source electrode;

a passivation layer formed on the data line and the drain electrode;

a color filter formed on the passivation layer;

a cover formed on the color filter and having a contact hole exposing the drain electrode; and

a pixel electrode formed on the cover and connected to the drain electrode through the contact hole,

wherein the cover includes a dummy hole exposing the color filter.

2. The liquid crystal display of claim 1 , wherein

the color filter includes red, green, and blue color filters, and

the dummy hole exposes the red, green, and blue color filters.

3. The liquid crystal display of claim 1 , wherein

the color filter includes red, green, and blue color filters, and

a plurality of dummy holes exposes the red, green, and blue color filters.

4. The liquid crystal display of claim 2 , wherein

the area of the dummy hole is in the range of about 10 μm 2 -about 500 μm 2 .

5. The liquid crystal display of claim 4 , wherein

the dummy hole is covered by the pixel electrode.

6. The liquid crystal display of claim 5 , wherein

the passivation layer and the color filter further include an opening exposing the drain electrode, and

the contact hole is formed in the opening.

7. The liquid crystal display of claim 1 , wherein

the color filter includes red, green, and blue color filters, and

the dummy hole exposes a maximum of two color filters of the red, green, and blue color filters.

8. The liquid crystal display of claim 7 , wherein

the area of the dummy hole is in the range of about 10 μm 2 -about 200 μm 2 .

9. The liquid crystal display of claim 8 , wherein

the passivation layer and the color filter further include an opening exposing the drain electrode, and

the contact hole is formed in the opening.

10. The liquid crystal display of claim 1 , wherein

the color filter includes red, green, and blue color filters, and

a plurality of dummy holes exposes a maximum of two color filters of the red, green, and blue color filters.

11. The liquid crystal display of claim 1 , wherein

the color filter includes red, green, and blue color filters, and

the dummy hole exposes only one color filter of the red, green, and blue color filters.

12. The liquid crystal display of claim 11 , wherein

the area of the dummy hole is in the range of about 10 μm 2 -about 200 μm 2 .

13. The liquid crystal display of claim 12 , wherein

the passivation layer and the color filter have an opening exposing the drain electrode, and

the contact hole is formed in the opening.

14. The liquid crystal display of claim 1 , wherein the cover is made of silicon nitride.

15. A liquid crystal display comprising:

a substrate;

a gate line formed on the substrate;

a data line intersecting the gate line;

a passivation layer formed on the data line;

a color filter formed on the passivation layer;

a cover formed on the color filter; and

a pixel electrode formed on the cover,

wherein the cover includes a dummy hole formed over a portion of the gate line and exposing the color filter.

16. The liquid crystal display of claim 15 , wherein

the area of the dummy hole is in the range of about 10 μm 2 -about 500 μm 2 .

17. The liquid crystal display of claim 15 , wherein

the dummy hole is covered by the pixel electrode.

18. The liquid crystal display of claim 15 , wherein the cover is made of silicon nitride.

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 Jul 23, 2010
From: CHO, YOUNG-JE; KIM, YOON-JANG; CHO, YUN-JUNG; HONG, KWEON-SAM; KIM, YONG-JO; PARK, KEE-BUM; MOK, SEON-KYOON; SHIN, WOO-JUNG; SHIN, DONG-HO; CHOI, KOOK-HYUN
To: SAMSUNG ELECTRONICS CO., LTD
Reel/Frame 024730/0664 →