JP2004326140A5 - - Google Patents

Claims (15)

A first substrate; a second substrate; a vertical alignment type liquid crystal layer provided between the first substrate and the second substrate;
A plurality of electrodes each defined by a first electrode provided on the liquid crystal layer side of the first substrate and a second electrode provided on the second substrate and facing the first electrode through the liquid crystal layer. With a pixel area of
The first substrate expresses an alignment regulating force so as to form a plurality of liquid crystal domains in each of the plurality of picture element regions in a radially inclined alignment state in a voltage application state in the liquid crystal layer. Having an orientation-regulating structure, and
The second substrate exhibits an alignment regulating force that causes the liquid crystal molecules in the at least one liquid crystal domain to be radially inclined and aligned in a voltage applied state in a region corresponding to at least one liquid crystal domain of the plurality of liquid crystal domains. have a second alignment regulation structure,
The second alignment regulating structure includes a liquid crystal display device including an opening provided in the second electrode .   The liquid crystal display device according to claim 1, wherein the second alignment regulating structure is provided in a region corresponding to a vicinity of a center of the at least one liquid crystal domain.   3. The liquid crystal display device according to claim 1, wherein in the at least one liquid crystal domain, an alignment regulating direction by the second alignment regulating structure is aligned with a direction of a radial tilt alignment by the first alignment regulating structure.   The first electrode has a plurality of unit solid parts, and the first alignment regulating structure is constituted by the plurality of unit solid parts, and a voltage is applied between the first electrode and the second electrode. The liquid crystal domains are formed in regions corresponding to the plurality of unit solid portions by generating oblique electric fields around the plurality of unit solid portions when being performed. A liquid crystal display device according to any one of the above.   The liquid crystal display device according to claim 4, wherein each of the plurality of unit solid portions has rotational symmetry.   6. The liquid crystal display device according to claim 5, wherein each of the plurality of unit solid portions has a shape in which a corner portion is sharpened. The first electrode has at least one opening and a solid part;
The first alignment regulating structure is configured by the at least one opening and a solid part of the first electrode, and when a voltage is applied between the first electrode and the second electrode, The plurality of liquid crystal domains are formed in a region corresponding to the at least one opening and the solid part by generating an oblique electric field at an edge portion of the at least one opening of one electrode. 4. The liquid crystal display device according to any one of 3.   The first substrate includes a dielectric layer provided on a side of the first electrode opposite to the liquid crystal layer, and at least a part of the at least one opening of the first electrode through the dielectric layer. The liquid crystal display device according to claim 7, further comprising a third electrode facing each other.   The at least one opening includes a plurality of openings having substantially the same shape and the same size, and at least a part of the plurality of openings is arranged to have rotational symmetry. The liquid crystal display device according to claim 7 or 8, wherein a unit cell is formed.   The liquid crystal display device according to claim 9, wherein each shape of the at least some of the plurality of openings has rotational symmetry.   The liquid crystal display device according to claim 4, wherein the second alignment regulating structure is provided in a region corresponding to each of the plurality of liquid crystal domains.   The second alignment restriction structure is provided only in a region corresponding to a liquid crystal domain formed in a region corresponding to the solid portion of the first electrode among the plurality of liquid crystal domains. The liquid crystal display device according to any one of 10.   The liquid crystal display device according to claim 4, wherein the second alignment regulating structure expresses an alignment regulating force that causes liquid crystal molecules to be radially inclined and aligned only in a voltage application state. A first substrate; a second substrate; a vertical alignment type liquid crystal layer provided between the first substrate and the second substrate;
A plurality of electrodes each defined by a first electrode provided on the liquid crystal layer side of the first substrate and a second electrode provided on the second substrate and facing the first electrode through the liquid crystal layer. With a pixel area of
The first electrode includes a plurality of openings in each of the plurality of pixel regions, and a plurality of unit solid portions each surrounded by at least a part of the openings. And
Said second substrate, said plurality of unit solid portion and the plurality of openings, in a region corresponding to at least one unit solid, have a alignment control structure,
The alignment regulating structure includes a liquid crystal display device including an opening provided in the second electrode . The liquid crystal display device according to claim 14 , wherein each of the plurality of unit solid portions has rotational symmetry.