Liquid crystal display device and liquid crystal orientation method
View Patent ↗A slit pattern, which is an orientation control element extending in an oblique direction relative to an edge of a pixel electrode on a surface of a TFT substrate, is formed in the pixel electrode to extend in a substantially parallel direction to an extending direction of a bank-shaped pattern. Furthermore, as an orientation control element, fine slit patterns (concave portions in the pixel electrode) are formed locally in a part near the edge of the pixel electrode except in the pixel electrode to extend in an oblique direction relative to an extending direction of the edge.
1. A liquid crystal display device comprising:
a first substrate having thereon a pixel electrode and an active element;
a second substrate having thereon an opposed electrode;
a liquid crystal layer interposed between said first and second substrates with said electrodes facing each other; and
a first orientation control element extending in a nonparallel direction relative to an extending direction of an edge of said pixel electrode, and a second orientation control element extending from said first orientation element in a parallel direction relative to an extending direction of said edge provided on at least one of said first and second substrates;
wherein said second orientation control element has a constant width, and said width is smaller than a width of said first orientation control element.
2. The device according to claim 1 , wherein at least one of said first and second orientation control elements is a slit formed in said pixel electrode or said opposed electrode.
3. The device according to claim 1 , wherein at least one of said first and second orientation control elements is a protrusion formed on said pixel electrode or said opposed electrode.
4. The device according to claim 1 , wherein a dielectric anisotropy of liquid crystal molecules of said liquid crystal layer is negative.