Liquid crystal display

• US 8,144,114 B2
• Filed: 09/04/2007
• Issued: 03/27/2012
• Est. Priority Date: 09/26/2006
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jeon, Jin, Uh, Kee-han
• Primary Examiner(s): Awad, Amr
• Assistant Examiner(s): BRAY, STEPHEN A
• Application Number:
  US11/849,848
• Publication Number:
  US 20080074567A1
• Time in Patent Office: 1,666 Days
• Field of Search: 345/103
• US Class Current: 345/103
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals
• CPC Class Codes: G02F 1/13456 Cell terminals located on one side of the display only
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2310/0205 Simultaneous scanning of several lines in flat panels
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 3/3666 with the matrix divided into sections
• CPC Class Codes: G09G 3/3677 suitable for active matrices only

Abstract

A liquid crystal display includes a substrate, first and second pixel groups, a first gate line group comprising first gate lines connected to the pixels of the first pixel group, a second gate line group comprising second gate lines connected to the pixels of the second pixel group, a first data line group connected to the pixels of the first pixel group and comprising first data lines extending in a second direction, and a second data line group connected to the pixels of the second pixel group and comprising second data lines extending in the second direction. Each data line of the first data line group and each data line of the second data line group are connected to each other, and the first and second pixel groups are adjacent in the first direction.

Claims

1. A liquid crystal display comprising:

a substrate;

first and second pixel groups comprising a plurality of pixels arranged in a matrix on the substrate;

a first gate line group comprising a first plurality of gate lines connected to the pixels of the first pixel group and extending in a first direction;

a second gate line group comprising a second plurality of gate lines connected to the pixels of the second pixel group and extending in the first direction;

a first data line group connected to the pixels of the first pixel group and comprising a first plurality of data lines extending in a second direction;

a second data line group connected to the pixels of the second pixel group and comprising a second plurality of data lines extending in the second direction; and

a data driver connected to the first data line group and the second data line group, and transmitting data voltages to the first data line group and second data line group, wherein a pair of data lines comprising a data line of the first data line group and a data line of the second data line group are connected to each other, the pair of data lines being connected to the pixels representing the same color, and some data lines of the first data line group and the second data line group receive data voltages from the data driver at a first end, and the other data lines receive data voltages at a second end which is disposed opposite to the first end, and the first and second pixel groups are adjacent in the first direction,

wherein a data line closer to a boundary of the first and second data line groups in the first data line group is connected with a data line of the same color closer to the boundary of the first and second data line groups in the second data line group.

2. The liquid crystal display of claim 1, further comprising a first gate driver connected to the first gate line group and transmitting gate signals to the first gate line group, and a second gate driver connected to the second gate line group and transmitting gate signals to the second gate line group.

3. The liquid crystal display of claim 1, wherein each data line of the first data line group and each data line of the second data line group are sequentially connected.

4. The liquid crystal display of claim 1, wherein the data driver is disposed on a side of the liquid crystal display with respect to the first and second pixel groups.

5. The liquid crystal display of claim 2, wherein the data driver is disposed on a side of the liquid crystal display with one of the first gate driver or the second gate driver.

6. The liquid crystal display of claim 1, wherein the gate signals are alternatively and sequentially applied to the first plurality of gate lines of the first gate line group and the second plurality of gate lines of the second gate line group.

7. The liquid crystal display of claim 2, wherein the first and second gate drivers are integrated into the substrate.

8. The liquid crystal display of claim 2, wherein the first and second gate drivers are disposed opposite one another with respect to the first and second pixel groups.

9. The liquid crystal display of claim 1, wherein the gate signal comprises a gate-on voltage Von and a gate-off voltage Voff, and the duration of the gate-on voltage Von is about 1 H or more.

10. The liquid crystal display of claim 9, wherein the duration of the gate-on voltage Von is about 2 H.

11. The liquid crystal display of claim 9, wherein the gate-on voltages Von of the gate signals applied to two gate lines disposed in a same row of the first and second plurality of gate lines of the first and second gate line groups overlap for a predetermined time.

12. The liquid crystal display of claim 11, wherein the predetermined time is about 1 H.

13. The liquid crystal display of claim 1, wherein each data line of the first data line group and each data line of the second data line group are alternately connected from opposite sides of the matrix to adjacent columns of the pixels arranged in the matrix with respect to the first direction.

14. A liquid crystal display comprising:

a substrate;

first and second pixel groups comprising a plurality of pixels arranged in a matrix on the substrate;

a first gate line group comprising a first plurality of gate lines connected to the pixels of the first pixel group and extending in the first direction;

a second gate line group comprising a second plurality of gate lines connected to the pixels of the second pixel group and extending in the first direction;

a first data line group connected to the pixels of the first pixel group and comprising a first plurality of data lines extending in a second direction;

a second data line group connected to the pixels of the second pixel group and comprising a second plurality of data lines extending in the second direction; and

a data driver disposed adjacent to one of the first and second pixel groups and on a side of the liquid crystal display in the first direction with respect to the first and second pixel groups, connected to the first data line group and the second data line group, and transmitting data voltages to the first data line group and second data line group,

wherein the first and second pixel groups are adjacent in the first direction, a pair of data lines comprising a data line of the first data line group and a data line of the second data line group are connected to each other, the pair of data lines being connected to the pixels representing the same color, and some data lines of the first data line group and the second data line group receive data voltages from the data driver at a first end, and the other data lines receive data voltages at a second end which is disposed opposite to the first end,

wherein a data line closer to a boundary of the first and second data line groups in the first data line group is connected with a data line of the same color closer to the boundary of the first and second data line groups in the second data line group.

15. The liquid crystal display of claim 14, wherein each data line of the first data line group and each data line of the second data line group are connected to each other.

16. The liquid crystal display of claim 15, wherein each data line of the first data line group and each data line of the second data line group are sequentially connected.

17. The liquid crystal display of claim 14, wherein the gate signal comprises a gate-on voltage Von and a gate-off voltage Voff, and the gate-on voltages Von of the gate signals applied to two gate lines disposed in a same row of the first and second plurality of gate lines of the first and second gate line groups overlap for a predetermined time,

wherein the duration of the gate-on voltage Von is about 2 H.