IP Library Granted Patent US 8,212,951
Granted Patent B2
US 8,212,951 · App. 12/422,852 · Granted Jul 3, 2012

Liquid crystal display

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Quick Facts
Patent No.
US 8,212,951
App. No.
12/422,852
Granted
Jul 3, 2012
Kind
B2
Abstract

A liquid crystal display includes, for an embodiment, a first insulation substrate; a gate line extending in a first direction on the first insulation substrate; a data line insulated from the gate line and extending in a second direction; a pixel electrode formed in a pixel area defined by the intersection of the gate line and the data line; and storage wiring formed with the same layer as the data line, wherein the storage wiring includes a storage electrode extending in the first direction and covering the gate line, and a storage line connected to the storage electrode and formed according to the second direction.

Claims (54)

1. A liquid crystal display comprising:

a first insulation substrate;

a gate line extending in a first direction on the first insulation substrate;

a data line insulated from the gate line and extending in a second direction;

a first pixel electrode and a second pixel electrode respectively disposed in a pixel area; and

a first storage wiring formed at a same layer as the data line, wherein the first storage wiring includes a storage electrode extending in the first direction and covering the gate line, and a storage line connected to the storage electrode and formed according to the second direction,

wherein the first pixel electrode and the second pixel electrode are adjacent to each other with respect to the gate line,

wherein the storage electrode overlaps an edge of the first pixel electrode and an edge of the second pixel electrode simultaneously,

wherein the storage electrode overlaps a first separated portion between the edge of the first pixel electrode and the gate line and a second separated portion between the edge of the second pixel electrode and the gate line, and

wherein the first pixel electrode and the second pixel electrode extend in the first direction.

2. The liquid crystal display of claim 1 , wherein the pixel area is defined by at least an intersection of the gate line and the data line, and

the pixel area has a longer length in the first direction than the second direction.

3. The liquid crystal display of claim 2 , wherein

the storage electrode is wider than the gate line.

4. The liquid crystal display of claim 3 , wherein

the width of the storage electrode deviated from the gate line is in a range of 1 μm to 10 μm.

5. The liquid crystal display claim 3 , wherein

the first storage wiring includes a protrusion that is not overlapped with the first pixel electrode, the protrusion protruding in the first direction from the storage line toward the data line.

6. The liquid crystal display of claim 5 , further comprising:

a second storage wiring for reducing light leakage; and

a bridge overlapping the data line and electrically connecting the first storage wiring to the second storage wiring,

wherein the bridge contacts the protrusion of the first storage wiring and a second storage wiring.

7. The liquid crystal display of claim 6 , wherein

the bridge is formed of a same material as the first pixel electrode and is disposed at a same layer as the first pixel electrode.

8. The liquid crystal display of claim 7 , wherein

the bridge is made of ITO or IZO.

9. The liquid crystal display of claim 1 , wherein

the storage line overlaps a first edge of the first pixel electrode, the first edge being disposed along the second direction.

10. The liquid crystal display of claim 9 , further comprising

an assistance light blocking member overlapping a second edge of the first pixel electrode, the second edge of the first pixel electrode being disposed opposite to the first edge of the first pixel electrode, the second edge of the first pixel electrode being disposed along.

11. The liquid crystal display of claim 10 , wherein

the assistance light blocking member is formed of a same material as the gate line and is disposed at a same layer as the gate line.

12. The liquid crystal display of claim 1 , further comprising:

a second insulation substrate facing the first insulation substrate; and

a black matrix formed on the second insulation substrate and defining the pixel area,

wherein the width of the storage electrode is the same as the width of the black matrix.

13. The liquid crystal display of claim 1 , further comprising

a thin film transistor including a source electrode, a drain electrode, and a semiconductor layer, and the semiconductor layer is formed of an oxide semiconductor or a polysilicon.

14. The liquid crystal display of claim 13 , wherein the oxide semiconductor is made of a composition including at least one of Zn—O, In—O, Sn—O, Ga—O, Hf—O, a Mg—O, and a Cd—O.

15. The liquid crystal display of claim 1 , further comprising:

a second insulation substrate facing the first insulation substrate; and

a common electrode disposed on the second insulation substrate.

16. The liquid crystal display of claim 1 , wherein the first pixel electrode does not overlap the gate line, and wherein the first separated portion is disposed under the first pixel electrode and above the gate line in a top view of the liquid crystal display.

17. The liquid crystal display of claim 1 , wherein the storage electrode covers the first separated portion, the second separated portion, and the gate line simultaneously.

18. A liquid crystal display comprising:

a first insulation substrate;

a gate line extending in a first direction on the first insulation substrate;

a data line insulated from the gate line and extending in a second direction;

a first pixel electrode and a second pixel electrode respectively disposed in a pixel area;

a first storage wiring formed at a same layer as the data line, wherein the first storage wiring includes a storage electrode extending in the first direction and covering the gate line, and a storage line connected to the storage electrode and formed according to the second direction;

a first storage capacitor formed between the storage electrode and the first pixel electrode; and

a second storage capacitor formed between the storage electrode and the second pixel electrode,

wherein the first pixel electrode includes a first edge and a second edge, the first edge extending in the first direction, the second edge extending in the second direction and being shorter than the first edge,

wherein the second pixel electrode includes a third edge and a fourth edge, the third edge extending in the first direction, the fourth edge extending in the second direction and being shorter than the third edge, and wherein the storage electrode overlaps the first edge and overlaps the third edge.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029008/0798 →