Head up display device
AssigneeJapan Display Inc.
InventorsTatsuya Yata, Naoyuki Takasaki
Life of this patent
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Abstract
According to one embodiment, a display device includes a polarization separation element which transmits first polarized light, and reflects second polarized light, a first optical modulation unit which displays a first image by using transmitted light, a second optical modulation unit which displays a second image by using reflected light, and a projector which projects the first image onto a first projection area of a projection plane, and projects the second image onto a second projection area different from the first projection area of the projection plane.
Claims18
A display device comprising:
- a polarization separation element configured to transmit first polarized light as transmitted light, and reflect second polarized light different from the first polarized light as reflected light, the first polarized light and the second polarized light being part of illumination light from an illumination device;
- a first optical modulation unit including a liquid crystal layer and configured to display a first image by using the transmitted light;
- a second optical modulation unit including a liquid crystal layer and configured to display a second image by using the reflected light;
- and
- a retardation plate configured to impart retardation to at least one of the transmitted light and the reflected light.
A display device comprising:
- a polarization separation element configured to transmit first polarized light as transmitted light, and reflect second polarized light different from the first polarized light as reflected light, the first polarized light and the second polarized light being part of illumination light from an illumination device;
- a optical modulation unit including a liquid crystal layer and having a first area and a second area, the first area configured to display a first image by using the transmitted light, and the second area configured to display a second image by using the reflected light;
- and
- a retardation plate configured to impart retardation to at least one of the transmitted light and the reflected light.
Dependencies are inferred from the claim text.