Patent ID: 8547311

Claim:
A dual-image flat display device comprising: a first substrate; a second substrate disposed parallel and opposite to the first substrate; a liquid crystal layer comprising a plurality of liquid crystal molecules and disposed between the first substrate and the second substrate; and at least a pixel disposed on the second substrate, the pixel comprising a plurality of sub-pixels arranged side by side along a first direction, each of the sub-pixels comprising a first azimuthal angle domain and a second azimuthal angle domain, the first azimuthal angle domain and the second azimuthal angle domain being arranged side by side along a second direction in the sub-pixel, azimuthal angles of the liquid crystal molecules of the first and second azimuthal angle domains having an included angle less than 180°, and the first direction being nonparallel to the second direction, wherein at least one of the sub-pixels comprises a first pixel electrode, the first pixel electrode comprises a plurality of first pixel electrode branches parallel with each other, each of the first pixel electrode branches is straight and stretches along a stretching direction, and a long axis of the liquid crystal molecules disposed between the first pixel electrode branches is respectively parallel to the stretching direction of the first pixel electrode branches, wherein at least some of the liquid crystal molecules are disposed between two adjacent first pixel electrode branches.