LIQUID CRYSTAL DISPLAY

Abstract

The liquid crystal display includes a thin film transistor (TFT) panel including a pixel electrode in a rectangular shape having a transverse length longer than a longitudinal length, the pixel electrode including a first domain divider and having upper and lower half portions arranged symmetrically with respect to a transverse long axis passing through a center of the pixel electrode, a common electrode panel including a common electrode facing the pixel electrode, the common electrode including a second domain divider arranged parallel with the first domain divider, and a liquid crystal layer interposed between the TFT panel and the common electrode panel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Exemplary embodiments of the present invention can be understood in more detail from the following description taken in conjunction with the accompanying drawings in which:

FIG. 1A is a layout view of a thin film transistor (TFT) panel of a liquid crystal display (LCD) according to an embodiment of the present invention;

FIG. 1B is a cross-sectional view of the TFT panel taken along the line Ib-Ib′ of FIG. 1A;

FIG. 1C is a cross-sectional view of the TFT panel taken along the lines Ic-Ic′ and Ic′-Ic″ of FIG. 1A;

FIG. 2 is a layout view of a common electrode panel of the LCD according to an embodiment of the present invention;

FIG. 3A is a layout view of the LCD according to an embodiment of the present invention including the TFT panel shown in FIG. 1A and the common electrode panel shown in FIG 2;

FIG. 3B is a cross-sectional view of the LCD taken along the line IIIb-IIIb′ of FIG. 3A;

FIG. 3C is a schematic diagram of a pixel array of the LCD shown in FIG. 3A;

FIG. 4 is a layout view of a TFT panel of an LCD according to an embodiment of the present invention;

FIG. 5 is a layout view of a common electrode panel of the LCD according to an embodiment of the present invention;

FIG. 6 is a layout view of the LCD according to an embodiment of the present invention including the TFT panel shown in FIG. 4 and the common electrode panel shown in FIG. 5;

FIG. 7 is a layout view of an LCD according to an embodiment of the present invention; and

FIG. 8 is a layout view of an LCD according to an embodiment of the present invention.

Claims

1. A liquid crystal display comprising: a thin film transistor (TFT) panel including a pixel electrode in a rectangular shape having a transverse length longer than a longitudinal length, the pixel electrode including a first domain divider and having upper and lower half portions arranged symmetrically with respect to a transverse long axis passing through a center of the pixel electrode;a common electrode panel including a common electrode facing the pixel electrode, the common electrode including a second domain divider arranged parallel with the first domain divider; anda liquid crystal layer interposed between the TFT panel and the common electrode panel.

2. The liquid crystal display of claim 1, further comprising first and second polarizers attached to external surfaces of the TFT panel and the common electrode panel, respectively.

3. The liquid crystal display of claim 2, wherein the first and second domain dividers form an angle of approximately 45 degrees or approximately −45 degrees with respect to a transmissive axis of each polarizer.

4. The liquid crystal display of claim 3, wherein in the first and second domain dividers, portions forming an angle of approximately 45 degrees and portions forming an angle of approximately −45 degrees with respect to the transmissive axis of the polarizer are separately arranged from one another with respect to the transverse long axis.

5. The liquid crystal display of claim 1, wherein the first and second domain dividers are alternately arranged.

6. The liquid crystal display of claim 1, wherein the second domain divider is positioned in the center of the pixel electrode and the first domain divider is positioned at both sides of the second domain divider.

7. The liquid crystal display of claim 6, further comprising a storage electrode wire provided on the TFT panel to form a storage capacity together with the pixel electrode, wherein the storage electrode wire comprises a storage electrode line extending in the transverse long axis passing through the center of the pixel electrode, and a storage electrode branched from the storage electrode line to overlap the first domain divider.

8. The liquid crystal display of claim 1, wherein the first domain divider is positioned in the center of the pixel electrode and the second domain divider is positioned at both sides of the first domain divider.

9. The liquid crystal display of claim 8, further comprising a storage electrode wire provided on the TFT panel to form a storage capacitor together with the pixel electrode, wherein the storage electrode line extends in the transverse long axis passing through the center of the pixel electrode.

10. The liquid crystal display of claim 1, further comprising a passivation layer provided below the pixel electrode, wherein the passivation layer comprises an inorganic insulator and protects a structure on the TFT panel, and the first domain divider has a width of approximately 6 μm or less.

11. The liquid crystal display of claim 1, further comprising a passivation layer provided below the pixel electrode, wherein the passivation layer protects a structure on the TFT panel and includes a double-layered structure comprising an inorganic layer and an organic layer, and the first domain divider has a width of approximately 10 μm or less.

12. The liquid crystal display of claim 1, wherein the common electrode panel comprises color filters arranged on an area corresponding to the pixel electrode, the color filters including red, green, and blue color filters repeatedly arranged in a longitudinal direction.

13. The liquid crystal display of claim 1, wherein the TFT panel comprises: an insulating substrate;a gate line extending on the insulating substrate in a transverse direction;a data line crossing the gate line and extending in a longitudinal direction; anda TFT connected to the gate line, the data line, and the pixel electrode.

14. The liquid crystal display of claim 1, wherein the TFT panel comprises: an insulating substrate;a gate line extending on the insulating substrate in a transverse direction;a data line crossing the gate line and having bent portions and longitudinal portions; anda TFT connected to the gate line, the data line and the pixel electrode.

15. The liquid crystal display of claim 14, further comprising first and second polarizers attached to external surfaces of the TFT panel and the common electrode panel, respectively.

16. The liquid crystal display of claim 15, wherein the bent portions of the data line form an angle of approximately 45 degrees or approximately −45 degrees with respect to a transmissive axis of each polarizer.

17. A liquid crystal display comprising: an insulating substrate;a plurality of gate lines formed on the insulating substrate;a plurality of data lines crossing the plurality of gate lines;a plurality of pixel electrodes formed on the insulating substrate in a matrix and each pixel electrode having a first side parallel to the plurality of gate lines and a second side shorter than the first side, the second side being adjacent to the first side;a common electrode facing the plurality of pixel electrodes; anda liquid crystal layer interposed between the plurality of pixel electrodes and the common electrode panel and having liquid crystal molecules, wherein the liquid crystal layer includes a first domain group and a second domain group, the first domain group including the liquid crystal molecules aligned at an angle of approximately 135 degrees or approximately −45 degrees with respect to the gate lines and the second domain group including the liquid crystal molecules aligned at an angle of approximately −135 degrees or approximately 45 degrees with respect to the gate lines.

18. The liquid crystal display of claim 17, wherein the first domain group includes a plurality of domains aligned at an angle of approximately 135 degrees and a plurality of domains aligned at an angle of approximately −45 degrees with respect to the gate lines, and the second domain group includes a plurality of domains aligned at an angle or approximately −135 degrees and a plurality of domains aligned at an angle of approximately 45 degrees with respect to the gate lines.

19. The liquid crystal display of claim 17, wherein the pixel electrode includes a first domain divider, wherein each of the plurality of domains includes upper and lower half portions arranged symmetrically with respect to a transverse long axis passing through the center of the pixel electrode, and the common electrode includes a second domain divide parallel to the first domain divider.

20. The liquid crystal display of claim 19, wherein the first domain divider includes a first portion forming an angle of approximately 45 degrees and a second portion forming an angle of approximately −45 degrees with respect to the gate lines.

21. The liquid crystal display of claim 20, wherein the first and second portions are separately arranged from each other with respect to the transverse long axis.

22. The liquid crystal display of claim 19, wherein the first and second domain dividers are alternately arranged.