Liquid crystal display device
View Patent ↗In one embodiment, a liquid crystal display device comprises a pixel electrode including a first main electrode disposed between a first line and a second line and extending like a belt in a first extending direction. A first counter electrode includes a second main electrode extending like a belt in the first extending direction, a second counter electrode having a third main electrode extending like a belt in the first extending direction. The second and third main electrodes are disposed on both sides of the first main electrode, and an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the first end side of the first main electrode and the second line, and through an interstice between the second end side of the first main electrode and the first line.
1. A liquid crystal display device, comprising:
a first substrate including:
a first line and a second line which extend in directions parallel with each other,
a pixel electrode including a first main electrode disposed between the first line and the second line and extending like a belt in a first extending direction, a first auxiliary electrode extending from a first end side of the first main electrode only toward the first line and having an end, and a second auxiliary electrode extending from a second end side of the first main electrode only toward the second line, and a first alignment layer covering the pixel electrode;
a second substrate including:
a first counter electrode including a second main electrode extending like a belt in the first extending direction, a second counter electrode having a third main electrode extending like a belt in the first extending direction, and a second alignment layer covering the first counter electrode and the second counter electrode;
a liquid crystal layer formed of liquid crystal molecules and held between the first substrate and the second substrate,
wherein the second main electrode and the third main electrode are disposed on both sides of the first main electrode,
an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the first end side of the first main electrode and the second line, and through an interstice between the second end side of the first main electrode and the first line, and
the distance between the end of the first auxiliary electrode and the first line is shorter than the distance between the first main electrode and the second line on the first end side of the first main electrode.
2. The liquid crystal display device according to claim 1 , wherein the direction in which the first auxiliary electrode extends is a second extending direction parallel with a direction in which the second auxiliary electrode extends.
3. The liquid crystal display device according to claim 1 , wherein
the first counter electrode includes a third auxiliary electrode extending from a position in the second main electrode, which is lined up with the second end side of the first main electrode, toward the second counter electrode, and
the second counter electrode includes a fourth auxiliary electrode extending from a position in the third main electrode, which is lined up with the sec-end first end side of the first main electrode, toward the first counter electrode.
4. The liquid crystal display device according to claim 3 , wherein the direction in which the third auxiliary electrode extends is a third extending direction in parallel with a direction in which the fourth auxiliary electrode extends.
5. The liquid crystal display device according to claim 3 , wherein a direction in which the first and second auxiliary electrodes extend is in parallel with a direction in which the third and fourth auxiliary electrodes extend.
6. The liquid crystal display device according to claim 1 , wherein an angle between the initial alignment direction and the first extending direction is larger than 0° and smaller than 45°.
7. The liquid crystal display device according to claim 6 , wherein an angle between the initial alignment direction and the first extending direction is in the range of 5° to 25°.
8. The liquid crystal display device according to claim 1 , wherein
the first auxiliary electrode is connected with the first end side of the first main electrode, and the second auxiliary electrode is connected with the second end side of the first main electrode.
9. The liquid crystal display device according to claim 1 , wherein the first and second auxiliary electrodes orthogonally cross with the first main electrode.
10. The liquid crystal display device according to claim 1 , wherein the second main electrode faces the first line, and the third main electrode faces the second line.
11. The liquid crystal display device according to claim 1 , wherein
the liquid crystal molecules are in a state of homogeneous alignment or splay alignment when electric field is not generated among the pixel electrode, the first counter electrode and the second counter electrode.