Liquid crystal device and electronic apparatus

1. A liquid crystal device comprising:

first and second substrates which face each other;

a liquid crystal layer interposed between the first substrate and the second substrate;

a reflection display region which is provided in one region of a sub-pixel configuring a control unit of a driving display by the first and second substrates with the liquid crystal layer interposed therebetween and performs a display by reflected light;

a transmission display region which is provided in the other region of the sub-pixel and performs a display by transmitted light;

a layer thickness adjustment film which is provided on the second substrate in correspondence with the reflection display region and defines the thickness of the liquid crystal layer to be different from that in the transmission display region; and

an alignment film which is provided between the second substrate and the liquid crystal layer so as to cover the layer thickness adjustment film and is subjected to a rubbing process,

wherein the layer thickness adjustment film has a step difference surface at a boundary between the reflection display region and the transmission display region, and when the rubbing process is performed in a direction opposed to the step difference surface and an angle between an extending direction of the step difference surface and a rubbing direction is α, a relationship of 70°≦α≦110° is satisfied, and the rubbing process is in a same direction in the reflection display region and the transmission display region;

first and second electrodes which are provided on the first substrate so as to generate an electric field;

wherein the second electrode has a plurality of electrode lines which are arranged in parallel with gaps interposed therebetween; and

when an angle between the gaps and the rubbing direction is β, a relationship of 5°≦β≦20° is satisfied.

2. The liquid crystal device according to claim 1 , wherein the step difference surface is sloped at an angle smaller than 90° with respect to the surface of the second substrate.

3. The liquid crystal device according to claim 1 , wherein:

the gaps of the second electrode linearly extend parallel to a longitudinal direction of the sub-pixel,

the rubbing direction is sloped at 5° to 20° with respect to the longitudinal direction of the sub-pixel, and

the step difference surface of the layer thickness adjustment film extends parallel to a short-side direction of the sub-pixel.

4. The liquid crystal device according to claim 3 , further comprising a switching element provided on the first substrate,

wherein the switching element is connected to a scanning line or a signal line and a longitudinal direction of the sub-pixel is parallel to an extending direction of the scanning line or the signal line.

5. The liquid crystal device according to claim 1 , wherein:

the gaps of the second electrode linearly extend parallel to a longitudinal direction of the sub-pixel,

the rubbing direction is sloped at 5° to 20° with respect to the longitudinal direction of the sub-pixel, and

the step difference surface of the layer thickness adjustment film is sloped with respect to a short-side direction of the sub-pixel while being perpendicular to the rubbing direction.

6. The liquid crystal device according to claim 1 , wherein:

the gaps of the second electrode are bent at a middle portion of the second electrode in a longitudinal direction of the sub-pixel, the gaps positioned at one region of the middle portion are sloped by 5° to 20° with respect to the longitudinal direction of the sub pixel in a counter-clockwise direction in plan view, and the gaps positioned at the other region of the middle portion are sloped by 5° to 20° with respect to the longitudinal direction of the sub pixel in a clockwise direction in plan view,

the rubbing direction is parallel to the longitudinal direction of the sub-pixel, and

the step difference surface of the layer thickness adjustment film extends parallel to a short-side direction of the sub-pixel.

7. The liquid crystal device according to claim 1 , wherein:

the gaps of the second electrode linearly extend parallel to a longitudinal direction of the sub-pixel,

the rubbing direction is sloped at 5° to 20° with respect to the longitudinal direction of the sub-pixel, and

the step difference surface of the layer thickness adjustment film is sloped with respect to a short-side direction of the sub-pixel while being perpendicular to the rubbing direction, and linearly extends between the plurality of sub-pixels.

8. The liquid crystal device according claim 1 , wherein the layer thickness adjustment film includes a retardation film and retardation of the retardation film is a ½ wavelength.

9. The liquid crystal device according to claim 1 , wherein the electrode lines of the second electrode overlap the first electrode in plan view.

10. An electronic apparatus comprising the liquid crystal device according to claim 1 .