IP Library Granted Patent US 8,350,978
Granted Patent B2
US 8,350,978 · App. 13/087,312 · Granted Jan 8, 2013

Liquid crystal display

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Quick Facts
Patent No.
US 8,350,978
App. No.
13/087,312
Granted
Jan 8, 2013
Kind
B2
Abstract

An LCD includes: a first substrate; first, second, and third gate lines extending along a first direction, formed over the first substrate and being parallel with each other; data lines insulated from the first gate line, the second gate line, and the third gate line and extending along a second direction that intersects the first direction; first, second, and third thin film transistors connected with the first gate lines, the second gate line, the third gate line, respectively and connected with the data lines; a passivation layer covering the first thin film transistor, the second thin film transistor, and the third thin film transistor; and first, second, and third pixel electrodes formed over the passivation layer and connected with the first thin film transistor, the second thin film transistor, and the third thin film transistor, respectively.

Claims (34)

1. A liquid crystal display (LCD) comprising:

a first substrate;

first, second, and third gate lines extending along a first direction, formed over the first substrate and being parallel with each other;

data lines insulated from the first gate line, the second gate line, and the third gate line and extending along a second direction that intersects the first direction;

first, second, and third thin film transistors connected with the first gate lines, the second gate line, the third gate line, respectively, and connected with the data lines;

a passivation layer covering the first thin film transistor, the second thin film transistor, and the third thin film transistor; and

first, second, and third pixel electrodes formed over the passivation layer and connected with the first thin film transistor, the second thin film transistor, and the third thin film transistor, respectively,

wherein the first gate line extends through a middle portion of the second pixel electrode along the first direction.

2. The LCD of claim 1 , further comprising at least a storage electrode line formed on the same layer where the first, second, and third gate lines are formed.

3. The LCD of claim 1 , wherein the first gate line, the second gate line, and the third gate line are sequentially arranged along the second direction, and the first gate line, the second gate line, and the third gate line form one gate line group.

4. The LCD of claim 3 , wherein the at least a storage electrode line comprises:

a first storage electrode line disposed between a third gate line of a previous gate line group and the first gate line of the present gate line group;

a second storage electrode line disposed between the first gate line and the second line of the present gate line group; and

a third storage electrode line disposed between the second gate line and the third gate line of the present gate line group.

5. The LCD of claim 4 , wherein the first thin film transistor is disposed between the first storage electrode line and the first gate line, the second thin film transistor is disposed between the second storage electrode line and the second gate line, and the third thin film transistor is disposed between the third storage electrode line and the third gate line.

6. The LCD of claim 4 , wherein the first storage electrode line, the second storage electrode line, and the third storage electrode line are sequentially arranged in the second direction, and the first storage electrode line, the second storage electrode line, and the third storage electrode line form one storage electrode line group.

7. The LCD of claim 6 , wherein the first pixel electrode is disposed between a third storage electrode line of a previous storage electrode line group and a first storage electrode line of the present storage electrode line group, the second pixel is disposed between the first storage electrode line and the second storage electrode line of the present storage electrode line group, and the third pixel electrode is disposed between the second storage electrode line and the third storage electrode line of the present storage electrode line group.

8. The LCD of claim 6 , wherein each of the first pixel electrode, the second pixel electrode, and the third pixel electrode comprises a plurality of sub-pixel electrodes.

9. The LCD of claim 8 , wherein the at least a storage electrode line comprises at least one extended storage portion disposed between two neighboring sub-pixel electrodes.

10. The LCD of claim 8 , further comprising at least one overlapping electrode formed in the same layer of the data line and overlapping the at least a storage electrode line.

11. The LCD of claim 10 , wherein the at least one overlapping electrode comprises at least one extended overlapping portion disposed between two neighboring sub-pixel electrodes.

12. The LCD of claim 10 , wherein the first thin film transistor comprises a first gate electrode connected with the first gate line, a first source electrode connected with the data line, and a first drain electrode connected with the first pixel electrode,

wherein the second thin film transistor comprises a second gate electrode connected with the second gate line, a second source electrode connected with the data line, and a second drain electrode connected with the second pixel electrode, and

wherein the third thin film transistor comprises a third gate electrode connected with the third gate line, a third source electrode connected with the data line, and a third drain electrode connected with the third pixel electrode.

13. The LCD of claim 10 , wherein the at least one overlapping electrode comprises:

a first overlapping electrode connected with the first drain electrode;

a second overlapping electrode connected with the second drain electrode; and

a third overlapping electrode connected with the third drain electrode, and

the first overlapping electrode, the second overlapping electrode, and the third overlapping electrode are separated from each other.

14. The LCD of claim 2 , further comprising a gate insulating layer covering the gate line and the storage electrode line, and wherein the passivation layer comprises an organic layer.

15. The LCD of claim 1 , further comprising

a color filter display panel comprising a second substrate arranged opposite to the first substrate and a common electrode formed over the second substrate, and

a liquid crystal layer disposed between the pixel electrodes and the color filter display panel.

16. The LCD of claim 1 , wherein the first direction is perpendicular to the second direction.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2026
From: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
To: LONESTAR CRYSTAL DISPLAY LLC
Reel/Frame 074944/0730 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2022
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 060778/0543 →
MERGER Recorded Aug 31, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028921/0334 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2011
From: SEONG, SEOK-JE; LEE, JI-EUN
To: SAMSUNG MOBILE DISPLAY CO., LTD.
Reel/Frame 026145/0370 →