Near-eye display device
AssigneeGuangzhou Luxvisions Innovation Technology Limited
InventorZhenyu Gao
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Abstract
The disclosure discloses a near-eye display device, which includes an image source, a waveguide element, a first lens, a first quarter-wave plate, a polarizing beam splitter film, and a first linear polarizing film. The image source is configured to provide an image light beam. The waveguide element includes a first waveguide part and a second waveguide part. The polarizing beam splitter film and the first linear polarizing film are disposed between the first waveguide part and the second waveguide part. A transmission axis of the polarizing beam splitter film is parallel to a transmission axis of the first linear polarizing film, and has an included angle with a slow axis of the first quarter-wave plate. The included angle is 45 degrees.
Claims10
A near-eye display device, comprising an image source, a waveguide element, a first lens, a first quarter-wave plate, a polarizing beam splitter film, a first linear polarizing film, a second linear polarizing film and a second quarter-wave plate, wherein
- the image source is configured to provide an image light beam,
- the waveguide element comprises a first waveguide part and a second waveguide part, wherein the polarizing beam splitter film and the first linear polarizing film are disposed between the first waveguide part and the second waveguide part,
- a transmission axis of the polarizing beam splitter film is parallel to a transmission axis of the first linear polarizing film, and has an included angle with a slow axis of the first quarter-wave plate, the included angle being 45 degrees,
- after being reflected by a surface of the first waveguide part, the image light beam travels toward the polarizing beam splitter film, and
- after passing through the first quarter-wave plate, at least a portion of the image light beam is reflected by a first surface of the first lens without passing through the second linear polarizing film and the second quarter-wave plate, and then passes through the first quarter-wave plate,
- wherein when ambient light enters the near-eye display device, the ambient light passes through the second linear polarizing film and the second quarter-wave plate sequentially, and then passes through the first quarter-wave plate.
Dependencies are inferred from the claim text.