Patent ID: 7944544

Claim:
A liquid crystal device comprising: an optical element, the optical element including: a diffraction function layer for diffracting at least a part of incident light; and a grid disposed on a first surface of the diffraction function layer, the grid including a plurality of wires, wherein the diffraction function layer includes a flat portion and a non-flat portion adjacent to the flat portion, the first surface in the flat portion is flat and is not provided with the grid, the first surface in the non-flat portion includes a plurality of first areas and a plurality of second areas, and the first areas and the second areas are provided with the grid and are different from each other in a height from a second surface of the diffraction function layer as a surface opposite to the first surface, and steps are provided on boundaries between the first areas and the second areas; a transmission display part, the flat portion of the diffraction function layer being formed in the transmission display part; and a reflection display part, the non-flat portion of the diffraction function layer being formed in the reflection display part.