Display device

A display device, comprising:

• a display panel, and a grating layer arranged inside or outside of the display panel, wherein
• the display panel comprises a left display area corresponding to a left eye of a viewer and a right display area corresponding to a right eye of the viewer;
• the left display area comprises a plurality of left-eye pixels of a first color, a plurality of left-eye pixels of a second color, a plurality of left-eye pixels of a third color, and the right display area comprises a plurality of right-eye pixels of the first color, a plurality of right-eye pixels of the second color, and a plurality of right-eye pixels of the third color;
• the grating layer comprises a left grating region corresponding to the left display area, and a right grating region corresponding to the right display area, the left grating region comprises a left-eye grating region of the first color corresponding to the left-eye pixels of the first color, a left-eye grating region of the second color corresponding to the left-eye pixels of the second color, and a left-eye grating region of the third color corresponding to the left-eye pixels of the third color, the right grating region comprises a right-eye grating region of the first color corresponding to the right-eye pixels of the first color, a right-eye grating region of the second color corresponding to the right-eye pixels of the second color, and a right-eye grating region of the third color corresponding to the right-eye pixels of the third color;
• along a direction from a center of a left-eye field-of-view central area of the left display area to a non left-eye field-of-view central area of the left display area, a grating period of the left-eye grating region of the first color, a grating period of the left-eye grating region of the second color, and a grating period of the left-eye grating region of the third color all decrease gradually, and light emitted by the display device from a position corresponding to the left-eye pixels of the first color, light emitted by the display device from a position corresponding to the left-eye pixels of the second color, and light emitted by the display device from a position corresponding to the left-eye pixels of the third color are all directed to the left eye of the viewer;
• along a direction from a center of a right-eye field-of-view central area of the right display area to a non right-eye field-of-view central area of the right display area, a grating period of the right-eye grating region of the first color, a grating period of the right-eye grating region of the second color, and a grating period of the right-eye grating region of the third color all decrease gradually, and light emitted by the display device from a position corresponding to the right-eye pixels of the first color, light emitted by the display device from a position corresponding to the right-eye pixels of the second color, and light emitted by the display device from a position corresponding to the right-eye pixels of the third color are all directed to the right eye of the viewer;
• and
• the left-eye field-of-view central area does not overlap with the right-eye field-of-view central area.