Multi-domain liquid crystal display device and manufacturing method thereof
View Patent ↗A liquid crystal display device (LCD) is provided. The LCD includes first and second substrates; a plurality of gate lines on the first substrate; a plurality of data lines crossing the gate lines to define a plurality of pixel regions; a thin film transistor at a crossing intersection of the gate line and the data line; a pixel electrode in the pixel region, the pixel electrode having a zigzag slit pattern formed therein, the slit pattern dividing the pixel electrode into at least two domains; a dielectric protrusion on the second substrate; and a liquid crystal layer between the first and second substrates.
1. A liquid crystal display device (LCD) comprising:
first and second substrates;
a plurality of gate lines on the first substrate;
a plurality of data lines crossing the gate lines to define a plurality of pixel regions;
a thin film transistor at a crossing intersection of the gate line and the data line;
a pixel electrode in the pixel region, the pixel electrode having a zigzag edge and a zigzag slit pattern formed therein, the slit pattern dividing the pixel electrode into at least two domains;
a dielectric protrusion on the second substrate; and
a liquid crystal layer between the first and second substrates,
wherein the slit pattern has a different zigzag angle from the zigzag edge of the pixel electrode.
2. The LCD according to claim 1 , further comprising:
a black matrix layer on the second substrate;
a color filter layer on the black matrix layer; and
a common electrode on the color filter layer.
3. The LCD according to claim 1 , wherein the dielectric protrusion is formed in a region of the domain.
4. The LCD according to claim 1 , wherein the domains of the pixel electrode are electrically connected to one another.
5. The LCD according to claim 1 , wherein the data line is formed in a zigzag pattern.
6. The LCD according to claim 1 , wherein the liquid crystal layer has a negative dielectric anisotropy.
7. The LCD according to claim 1 , wherein the liquid crystal layer contains chiral dopants.
8. The LCD according to claim 1 , wherein the dielectric protrusion has an auxiliary protrusion pattern extending therefrom.
9. The LCD according to claim 1 , wherein the dielectric protrusion is parallel to the slit pattern.
10. An LCD (liquid crystal display device) comprising:
first and second substrates;
a plurality of gate lines on the first substrate;
a plurality of zigzag data lines crossing the gate lines to define a plurality of pixel regions;
a thin film transistor at a crossing of the gate line and the data line;
a pixel electrode in the pixel region, the pixel electrode having a zigzag edge and a zigzag slit pattern formed therein, the slit pattern dividing the pixel electrode into at least two domains;
a zigzag dielectric protrusion on the second substrate; and
a liquid crystal layer between the first and second substrates,
wherein the slit pattern has a different zigzag angle from the zigzag edge of the pixel electrode.
11. The LCD according to claim 10 , further comprising:
a black matrix layer on the second substrate;
a color filter layer on the black matrix layer; and
a common electrode on the color filter layer.
12. The LCD according to claim 10 , wherein the dielectric protrusion is formed in a region of the domain.
13. The LCD according to claim 10 , wherein the domains of the pixel electrode are electrically connected to one another.
14. The LCD according to claim 10 , wherein the liquid crystal layer has a negative dielectric anisotropy.
15. The LCD according to claim 10 , wherein the liquid crystal layer contains chiral dopants.
16. The LCD according to claim 10 , wherein the dielectric protrusion has an auxiliary protrusion pattern extending therefrom.
17. The LCD according to claim 10 , wherein the dielectric protrusion is parallel to the slit pattern.
18. The LCD according to claim 16 , wherein the auxiliary protrusion pattern is formed at the edge of the pixel electrode.
19. The LCD according to claim 10 , wherein the dielectric protrusion and the auxiliary protrusion pattern have an angle of approximately 135°.
20. A method for manufacturing a liquid crystal display device (LCD), the method comprising:
providing first and second substrates;
forming a gate line on the first substrate;
forming a data line crossing the gate line with an insulating layer therebetween to define a pixel region;
forming a pixel electrode in the pixel region, the pixel electrode having a zigzag edge and a zigzag slit pattern formed therein, the pixel electrode being divided by the slit into a plurality of domains;
forming a dielectric protrusion on the second substrate corresponding to the domains, the dielectric protrusion being parallel to the zigzag slit pattern; and
forming a liquid crystal layer between the first and second substrates,
wherein the slit pattern has a different zigzag angle from the zigzag edge of the pixel electrode.
21. The method according to claim 20 , wherein an auxiliary protrusion pattern is further formed to extend from the dielectric protrusion and to correspond an edge of the pixel electrode.
22. The method according to claim 20 , further comprising prior to the forming of the dielectric protrusion:
forming a black matrix layer on the second substrate;
forming a color filter layer on the black matrix layer; and
forming a common electrode on the color filter layer.
23. The method according to claim 20 , wherein the data line is formed in a zigzag pattern.