Three-dimensional (3d) display
AssigneeIndustrial Technology Research Institute
InventorsChao-Hsu Tsai, Kuen Lee, Chou-Lin Wu
Life of this patent
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Abstract
A 3D display has a light grating unit inserted between a polarized light module and an image display unit. The light grating unit includes a tristate switching unit, a microretarder unit, and a polarizing film. By controlling the tristate switching unit of the light grating unit to be switched between three modes, a displayed image is switched between a 2D image at the third mode and a 3D image at the first and second mode. The first mode and the second mode are the switching effect to exchange image for the left eye and the right eye. When the light grating unit switches fast, e.g. in 2 times or more of the video rate, and the content updates synchronously, viewers will see 3D images in full resolution.
Claims15
A three-dimensional (3D) display, comprising:
- a polarized light module, outputting a polarized light;
- a light grating unit, disposed in a light path of the polarized light for modulating and outputting the polarized light in multiple stripe areas, wherein adjacent two of stripe areas are at a first polarization state and a second polarization state, wherein the light grating unit has at least a first mode and a second mode, the first polarization state and the second polarization state are reversed when the light grating unit is switched between the first mode and the second mode;
- and
- an image display unit, receiving the polarized light from the light grating unit and displaying at least a first image and a second image respectively at first-set pixels and second-set pixels in the first mode, and displaying the first image and the second image respectively at the second-set pixels and the first-set pixels in the second mode.
A dual-mode image display, comprising:
- a polarized light module for providing a light source in a polarizing state;
- an image display unit, having a plurality of pixels for correspondingly displaying a 2D image or a 3D image;
- and
- a light grating unit disposed between the polarized light module and the image display unit, wherein the light grating unit comprises a tristate switching unit, having a first mode and a second mode for correspondingly displaying the 3D image and a third mode for displaying the 2D image,
- wherein a first part of the pixels is for displaying a left-eye image and a second part of the pixels is for displaying a right-eye image in the first mode, wherein the first part of the pixels is for displaying the right-eye image and the second part of the pixels is for displaying the left-eye image in the second mode.
Dependencies are inferred from the claim text.