Liquid crystal display panel for liquid crystal display

Abstract

A liquid crystal display panel having improved optical transmissivity and viewing angle includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first base substrate, a plurality of gate lines and a plurality of data lines, and a pixel electrode. The gate lines and the data lines are disposed on the first base substrate and cross each other. The pixel electrode includes a first pixel electrode part and a second pixel electrode part disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines. The second substrate includes a second base substrate and a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode.

Description

BRIEF DESCRIPTION OF THE DRAWING

The above and other features and advantage points of the present invention may become more apparent from a reading of the ensuing description, together with accompanying drawings, in which:

FIG. 1 is a partial plan view illustrating a portion of an array substrate of a liquid crystal display panel according to an exemplary embodiment of the present invention;

FIG. 2 is a partial plan view illustrating the array substrate and a pixel electrode of the array substrate;

FIG. 3 is a partial cross-sectional view taken along a line I-I′ in FIG. 2;

FIG. 4 is a partial plan view illustrating a portion of a liquid crystal display panel according to another exemplary embodiment of the present invention;

FIGS. 5 to 8 are partial plan views illustrating a method of manufacturing a liquid crystal display panel according to an exemplary embodiment of the present invention; and

FIG. 9 is a partial cross-sectional view illustrating a liquid crystal display device according to an exemplary embodiment of the present invention.

Claims

1. A liquid crystal display panel comprising: a first base substrate;a plurality of gate lines and a plurality of data lines disposed on the first base substrate and crossing each other; anda pixel electrode comprising a first pixel electrode part and a second pixel electrode part disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines;a second base substrate;a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode; anda liquid crystal layer disposed between the first and second substrates.

2. The liquid crystal display panel of claim 1, wherein the first substrate further comprises a lower electrode for a capacitor disposed on the first base substrate and positioned between consecutive gate lines.

3. The liquid crystal display panel of claim 2, wherein the lower electrode is substantially in parallel with the gate lines and crosses the data lines.

4. The liquid crystal display panel of claim 3, wherein the first pixel electrode part and the second pixel electrode part are symmetrical to each other with respect to the lower electrode.

5. The liquid crystal display panel of claim 2, wherein the pixel electrode covers at least a portion of the lower electrode.

6. The liquid crystal display panel of claim 2, wherein the pixel electrode further comprises a third pixel electrode part positioned between the first pixel electrode part and the second pixel electrode part, and the third pixel electrode part and the lower electrode form a storage capacitor.

7. The liquid crystal display panel of claim 6, wherein the third pixel electrode part has a different width along a direction in which the gate lines extend.

8. The liquid crystal display panel of claim 7, wherein the third pixel electrode part has a wedge shape.

9. The liquid crystal display panel of claim 1, wherein the first pixel electrode part comprises a plurality of first extension portions extending to be inclined at a first angle with respect to the gate lines and a first connection portion connecting the first extension portions and wherein the second pixel electrode part comprises a plurality of second extension portions extending to be inclined at a second angle with respect to the gate lines and a second connection portion connecting the second extension portions.

10. The liquid crystal display panel of claim 9, wherein the first angle is in a range of about −5 degrees to about −30 degrees, and the second angle is in a range of about 5 degrees to about 30 degrees.

11. The liquid crystal display panel of claim 9, wherein the common electrode comprises: a first common electrode part comprising a plurality of third extension portions extending to be inclined at the first angle with respect to the gate lines and a third connection portion connecting the third extension portions; anda second common electrode part comprising a plurality of fourth extension portions extending to be inclined at the second angle with respect to the gate lines and a fourth connection portion connecting the fourth extension portions.

12. The liquid crystal display panel of claim 11, wherein the first common electrode part and the second common electrode part overlap the gate lines.

13. The liquid crystal display panel of claim 11, wherein the third extension portion of the first common electrode part and the fourth extension portion of the second common electrode part correspond to the data lines.

14. The liquid crystal display panel of claim 11, wherein the common electrode further comprises a third common electrode part corresponding to the gate lines and positioned between the first common electrode part and the second common electrode part.

15. The liquid crystal display panel of claim 14, wherein the third common electrode part has a different width along a direction in which the gate lines extend.

16. The liquid crystal display panel of claim 15, wherein the third common electrode part has a wedge shape.

17. A liquid crystal display panel comprising: a first base substrate;a plurality of gate lines disposed on the first base substrate and extending in a first direction;a plurality of data lines disposed on the first base substrate to cross the gate lines and extending in a second direction;a lower electrode for a capacitor disposed on the first base substrate, and positioned between consecutive gate lines;an insulation layer formed on the gate lines, the data lines and the lower electrode;a pixel electrode disposed on the insulation layer and comprising a first pixel electrode part and a second pixel electrode part inclined in a different direction from each other with respect to the gate lines;a second base substrate facing the first base substrate;a common electrode disposed on the second base substrate and comprising a first common electrode part and a second common electrode part alternately positioned with the pixel electrode; anda liquid crystal layer disposed between the first and second base substrates.

18. The liquid crystal display panel of claim 17, wherein the pixel electrode further comprises a third pixel electrode part having a wedge shape and positioned between the first pixel electrode part and the second pixel electrode part, and the third pixel electrode part and the lower electrode form a storage capacitor.

19. The liquid crystal display panel of claim 17, wherein the common electrode further comprises a third common electrode part having a wedge shape, the third common electrode part corresponding to the gate lines and being positioned between the first common electrode part and the second common electrode part.

20. A method of manufacturing a liquid crystal display panel comprising: forming a signal-applying module on a first base substrate, the signal-applying module comprising an output terminal configured to output a data signal;forming an insulation layer to cover the signal-applying module;forming a contact hole through the insulation layer, a portion of the output terminal being exposed through the contact hole;forming a pixel electrode on the first base substrate, the pixel electrode comprising a first pixel electrode part and a second pixel electrode part inclined in a different direction from each other with respect to the gate lines;forming a common electrode on a second base substrate, the common electrode comprising a first common electrode part and a second common electrode part alternately positioned with the pixel electrode; andinjecting liquid crystal between the first base substrate and the second base substrate to form a liquid crystal layer.

21. The method of claim 20, wherein forming the signal-applying module comprises: simultaneously forming a plurality of gate lines extending in a first direction, a gate electrode and a lower electrode for a capacitor positioned between consecutive gate lines on the first base substrate;forming a gate insulation layer on the first base substrate having the gate lines, the gate electrode and the lower electrode;forming a channel pattern on the first base substrate having the gate insulation layer; andsimultaneously forming a source electrode, a drain electrode and a plurality of data lines crossing the gate lines and extending in a second direction on the first base substrate having the channel pattern;

22. The method of claim 20, wherein forming the pixel electrode further comprises forming a third pixel electrode part positioned between the first pixel electrode part and the second pixel electrode part, and the third pixel electrode part and the lower electrode form a storage capacitor.

23. The liquid crystal display panel of claim 20, wherein forming the common electrode further comprises forming a third common electrode part having a wedge shape and positioned between the first common electrode part and the second common electrode part.

24. A liquid crystal display device comprising: a liquid crystal display panel configured to display an image using light, the liquid crystal display panel comprising: a first substrate comprising a first base substrate, a plurality of gate lines and a plurality of data lines disposed on the first base substrate and crossing each other, and a pixel electrode comprising a first pixel electrode part and a second pixel electrode part disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines;a second substrate comprising a second base substrate, and a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode; anda liquid crystal layer disposed between the first and second substrates; anda backlight assembly configured to provide the light to the liquid crystal display panel.

25. A liquid crystal display panel having a plurality of pixels and a liquid crystal layer disposed between facing substrates, comprising: a plurality of gate lines and data lines disposed on a first of said substrates;a lower electrode formed between consecutive ones of said gate lines dividing each of said pixels into two areas;a pixel electrode part respective to each one of said two pixel areas, each said pixel electrode part being inclined in a different direction with respect to the gate lines;a third pixel electrode part covering at least a portion of the lower electrode to form a storage capacitor with said lower electrode; anda second substrate having a common electrode.

26. A liquid crystal display panel according to claim 25, wherein the third pixel electrode part corresponding to the lower electrode includes an inclined portion at a first angle and another inclined portion at a second angle.