Display device and electronic apparatus
View Patent ↗According to an aspect, a display device has a first electrode, a second electrode and liquid crystal layer. When a voltage is not applied to the first and second electrodes, the major axes of the liquid crystal molecules are oriented in a third direction. When a voltage is applied between the first and second electrodes, the major axes are oriented so as to rise in a direction perpendicular to a first substrate while rotating clockwise in a vicinity of one of long sides of comb tooth portion that face each other and counterclockwise in a vicinity of the other of the long sides. An angle between an electrode base-side portion of a long side of each comb tooth portions and the third direction is larger than an angle between a distal end-side portion of the long side of each comb tooth portions and the third direction.
1. A display device, comprising:
a first substrate that has a signal line extending a first direction, a scanning line extending in a second direction different from the first direction, a first electrode, and a second electrode,
wherein the first electrode is connected to the signal line via a thin film transistor element connected to the scanning line and includes an electrode base extending in the first direction and a plurality of comb tooth portions protruding from the electrode base and extending in the second direction, and
the second electrode faces the comb tooth portions via an insulating film;
a second substrate that faces the first substrate; and
a liquid crystal layer disposed between the first substrate and the second substrate, wherein each of the comb tooth portions has a base segment that is arranged on a base side of the comb tooth portion, and the base segment has two sides each of which forms a base angle with respect to the second direction,
wherein the base angle is smaller than a right angle,
each of the comb tooth portions has a distal segment that is arranged on a distal side of the comb tooth portion,
the distal segment has two sides and a top side connecting the two sides, and
the two sides of the distal segment are parallel to the second direction.
2. The display device according to claim 1 , wherein the top side is parallel to the first direction.
3. The display device according to claim 1 , wherein each of the comb tooth portions has a shape substantially symmetric with the second direction.
4. The display device according to claim 1 , wherein the liquid crystal layer includes a plurality of liquid crystal molecules oriented to the second direction in a non-voltage applied state.
5. The display device according to claim 1 , wherein
when a voltage is not applied to the first electrode and the second electrode, the major axes of the liquid crystal molecules are oriented so as to be aligned in the second direction, whereas
when a voltage is applied between the first electrode and the second electrode, the major axes of the liquid crystal molecules are oriented so as to rotate, in an in-plane direction of the first substrate, clockwise in a vicinity of one side of the comb tooth portion and counterclockwise in a vicinity of the other side of the comb tooth portion.