Display device, electronic apparatus, and method of manufacturing display device
View Patent ↗A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.
1. A display device comprising:
an electrode layer including:
a first electrode; and
a second electrode that is opposed to the first electrode and that has a plurality of openings each having a width extending in a width direction and a length extending in an extending direction, the length is greater than the width, respective ones of the openings each having a first side and a second side that are opposed to each other in the width direction;
a liquid crystal layer that includes liquid crystal molecules, the liquid crystal layer is disposed on the electrode layer; and
an alignment film that is disposed between the electrode layer and the liquid crystal layer,
wherein, when viewed from a thickness direction of the liquid crystal layer, respective ones of the liquid crystal molecules in a first region in proximity to the first side and respective ones of the liquid crystal molecules in a second region in proximity to the second side are rotated in opposite directions from each other and aligned,
wherein the alignment film has been subjected to a rubbing process in a predetermined direction parallel to the extending direction,
wherein the openings adjacent to each other in the extending direction are displaced from each other in the width direction and arranged in a staggered form, and
wherein regions in which the liquid crystal molecules are rotated in a same direction are aligned in the extending direction with each other.
2. The display device according to claim 1 ,
wherein the openings have an electric field control section, and liquid crystal molecules from an end of the opening to the electric field control section in the extending direction are rotated in a same rotation direction.
3. The display device according to claim 2 ,
wherein the openings have an extended-width part in the width direction of the openings, and the electric field control section is a corner part disposed at a point of intersection of the opening and the extended-width part.
4. The display device according to claim 3 ,
wherein the extended-width part is a communicating extended-width part for making the openings adjacent to each other in the width direction communicate with each other.
5. The display device according to claim 4 ,
wherein an upper side part and a lower side part of the opening are displaced from each other in the width direction and arranged in a staggered form with the communicating extended-width part interposed between the upper side part and the lower side part of the opening.
6. The display device according to claim 1 ,
wherein the openings have an extended-width part at a position closer to an end part in a direction opposite from the predetermined direction parallel to the extending direction than an end part in the predetermined direction.
7. The display device according to claim 6 ,
wherein the extended-width part is a communicating extended-width part for making the openings adjacent to each other in the width direction communicate with each other.
8. The display device according to claim 7 ,
wherein the openings are divided into a first opening and a second opening in the extending direction with the communicating extended-width part as a boundary, and the first opening and the second opening are disposed so as to be displaced from each other in the width direction.
9. The display device according to claim 1 ,
wherein the openings have a rectangular shape.
10. The display device according to claim 1 ,
wherein the openings have a substantially rhombic shape.
11. The display device according to claim 1 ,
wherein a dielectric film is disposed between the first electrode and the second electrode.
12. An electronic apparatus including a display device, the display device comprising:
an electrode layer including:
a first electrode; and
a second electrode that is opposed to the first electrode and that has a plurality of openings each having a width extending in a width direction and a length extending in an extending direction, the length is greater than the width, respective ones of the openings each having a first side and a second side that are opposed to each other in the width direction;
a liquid crystal layer that includes liquid crystal molecules, the liquid crystal layer is disposed on the electrode layer; and
an alignment film that is disposed between the electrode layer and the liquid crystal layer,
wherein, when viewed from a thickness direction of the liquid crystal layer, respective ones of the liquid crystal molecules in a first region in proximity to first side and respective ones of the liquid crystal molecules in a second region in proximity to the second side are rotated in opposite directions from each other and aligned,
wherein the alignment film has been subjected to a rubbing process in a direction parallel to the extending direction,
wherein the openings adjacent to each other in the extending direction are displaced from each other in the width direction and arranged in a staggered form, and
wherein regions in which the liquid crystal molecules are rotated in a same direction are aligned in the extending direction with each other.
13. A method of manufacturing a display device, the method comprising:
forming an electrode layer including a first electrode and a second electrode, the second electrode being opposed to the first electrode, the second electrode having a plurality of openings each having a width extending in a width direction and a length extending in an extending direction, the length is greater than the width, respective ones of the openings each having a first side and a second side that are opposed to each other in the width direction;
forming an alignment film that has been subjected to a rubbing process in a direction parallel to the extending direction of the plurality of openings and that is on the electrode layer; and
forming a liquid crystal layer, including liquid crystals and being on the electrode layer, after performing alignment treatment so that when viewed from a thickness direction of the liquid crystal layer, respective ones of the liquid crystal molecules in a first region in proximity to the first side and respective ones of the liquid crystal molecules in a second region in proximity to the second side are rotated in opposite directions from each other and aligned,
wherein the openings adjacent to each other in the extending direction are displaced from each other in the width direction and arranged in a staggered form, and
wherein regions in which the liquid crystal molecules are rotated in a same direction are aligned in the extending direction with each other.