IP Library Granted Patent US 8,373,621
Granted Patent B2
US 8,373,621 · App. 12/628,979 · Granted Feb 12, 2013

Array substrate and liquid crystal display device having the same

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Quick Facts
Patent No.
US 8,373,621
App. No.
12/628,979
Granted
Feb 12, 2013
Kind
B2
Abstract

A liquid crystal display device includes a first thin film transistor connected to a first data line and controlling a first voltage output, a second thin film transistor connected to a second data line parallel to the first data line and controlling a second voltage output, a third thin film transistor connected to a third data line disposed between the first data line and the second data line and controlling a third voltage output, a first liquid crystal capacitor electrically connected to the first thin film transistor and the third thin film transistor, and a second liquid crystal capacitor electrically connected to the second thin film transistor and the third thin film transistor.

Claims (30)

1. An array substrate comprising:

a first switching component connected to a first data line;

a second switching component connected to a second data line parallel to the first data line;

a third switching component connected to a third data line disposed between and parallel to the first and second data lines;

a first electrode connected to the first switching component and having a plurality of protrusions extending toward the third data line;

a second electrode connected to the third switching component and having a plurality of protrusions which are alternately disposed with the protrusions of the first electrode;

a third electrode connected to the third switching component and having a plurality of protrusions extending toward to the second data line; and

a fourth electrode connected to the second switching component and having a plurality of protrusions which are alternately disposed with the comb-like structure of the third electrode.

2. The array substrate of claim 1 , wherein a width of a gap between the protrusions of the first and second electrodes are substantially equal to a width of a gap between the protrusions of third and fourth electrodes.

3. The array substrate of claim 1 , wherein at least one of the protrusions of the first, second, third and fourth electrodes extends at an angle relative to the first data line.

4. The array substrate of claim 1 , further comprising gate lines, each gate lines being electrically connected to gate electrodes of the first, second, and third switching components respectively, and

a storage capacitor lines parallel to the gate lines.

5. The array substrate of claim 4 , wherein the third data line is electrically insulated from the storage capacitor lines.

6. The array substrate of claim 4 , wherein the third data line is electrically connected to the storage capacitor line.

7. The array substrate of claim 6 , wherein the third data line does not overlap the first, second, third and fourth electrodes.

8. A liquid crystal display device comprising:

a first thin film transistor connected to a first data line and controlling a first voltage output;

a second thin film transistor connected to a second data line parallel to the first data line and controlling a second voltage output;

a third thin film transistor connected to a third data line disposed between and parallel to the first data line and the second data line and controlling a third voltage output;

a first liquid crystal capacitor electrically connected to the first thin film transistor and the third thin film transistor; and

a second liquid crystal capacitor electrically connected to the second thin film transistor and the third thin film transistor.

9. The liquid crystal display device of claim 8 , wherein the first, second and third data lines transfer a first, second, and third voltages respectively, the first, second and third voltages being different from each other.

10. The liquid crystal display device of claim 9 , wherein the level of the second voltage is lower than the level of the first voltage, and the polarity of the third voltage is different from the polarities of the first and second voltages.

11. The liquid crystal display device of claim 10 , wherein the first, second and, third voltages are determined according to an image data.

12. The liquid crystal display device of claim 9 , wherein the third voltage is a common voltage.

13. The liquid crystal display device of claim 12 , wherein the first and second voltages are determined according to an image data.

14. The liquid crystal display device of claim 12 , wherein the third data line does not overlap the first liquid crystal capacitor and the second liquid crystal capacitor.

15. The liquid crystal display device of claim 8 , wherein the first liquid crystal capacitor has first and second electrodes having a plurality of protrusions, and the plurality of protrusions of the first and second electrodes are alternately disposed, and

wherein the second liquid crystal capacitor has third and fourth electrodes having a plurality of protrusions, the plurality of protrusions of the third and fourth electrodes are alternately disposed.

16. The liquid crystal display device of claim 8 , further comprising color filters disposed opposite the first and second liquid crystal capacitors.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE 7TH INVENTOR'S NAME. THE NAME SHOULD READ "CHEOL SHIN" PREVIOUSLY RECORDED ON REEL 023589 FRAME 0159. ASSIGNOR(S) HEREBY CONFIRMS THE ORIGINAL ASSIGNMENT READS "CHEON SHIN", WHICH IS INCORRECT. Recorded Jan 4, 2013
From: JUNG, KWANG-CHUL; JUNG, MEE-HYE; CHAI, CHONG-CHUL; KIM, HEE-SEOP; JANG, JOO-NYUNG; WOO, HWA-SUNG; SHIN, CHEOL
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 029572/0543 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029009/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2009
From: JUNG, KWANG-CHUL; JUNG, MEE-HYE; CHAI, CHONG-CHUL; KIM, HEE-SEOP; JANG, JOO-NYUNG; WOO, HWA-SUNG; SHIN, CHEON
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 023589/0159 →