Display apparatus and liquid crystal display device

摘要

A display apparatus and a liquid crystal display device are provided. The display apparatus comprises a display device for displaying an image and a diffractive optical element. The diffractive optical element comprises pixel unit regions. Each of the pixel unit regions has a long pixel side and a short pixel side adjacent to each other. The diffractive optical element is disposed on a light emitting side of the display device and comprises first grating regions and second grating regions. The first grating regions have a first diffraction grating. The second grating regions have a second diffraction grating. An azimuth angle of the first diffraction grating is different from an azimuth angle of the second diffraction grating.

主权项

1. A display apparatus, comprising:
a liquid crystal display device comprising: a backlight module; and a liquid crystal panel comprising a first substrate, a second substrate and a liquid crystal layer, wherein the liquid crystal layer is disposed between the first substrate and the second substrate; a first polarizer disposed on the first substrate; a second polarizer disposed between the second substrate and the backlight module, wherein polarizing directions of the first polarizer and the second polarizer have different azimuth angles; and a diffractive optical element disposed on a light emitting side of the first polarizer and having a first diffraction grating and a second diffraction grating, wherein grating directions of the first diffraction grating and the second diffraction grating have different azimuth angles, an included angle from the grating direction of the first diffraction grating to the polarizing direction of the first polarizer is 0±20 degrees, and an included angle from the grating direction of the second diffraction grating to the polarizing direction of the first polarizer is 90±20 degrees.