Method of displaying a hologram on a display device comprising pixels
AssigneeDualitas Ltd
InventorJamieson Christmas
Life of this patent
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Abstract
There is provided a holographic projector comprising a hologram engine and a controller. The hologram engine is arranged to provide a hologram comprising a plurality of hologram pixels. Each hologram pixel has a respective hologram pixel value. The controller is arranged to selectively-drive a plurality of light-modulating pixels so as to display the hologram. Displaying the hologram comprises displaying each hologram pixel value on a contiguous group of light-modulating pixels of the plurality of light-modulating pixels such that there is a one-to-many pixel correlation between the hologram and the plurality of light-modulating pixels.
Claims19
A display device comprising:
- a plurality of light-modulating pixels, each light-modulating pixel being configured to modulate phase of light received thereby at a plurality of modulation levels;
- and
- a controller arranged to:
- receive data relating to a first hologram comprising a first plurality of hologram pixels each having a respective hologram pixel value and to selectively-drive a first subset of light-modulating pixels of the first subset of light-modulating pixels so as to display the first hologram on the first subset of light-modulating pixels such that there is a 1:x pixel correlation between the first hologram and the first subset of light-modulating pixels, wherein x is an integer;
- and
- receive data relating to a second hologram comprising a second plurality of hologram pixels each having a respective hologram pixel value;
- and to selectively-drive a second subset of light-modulating pixels of the second subset of light-modulating pixels so as to display the second hologram on the second subset of light-modulating pixels such that there is a 1:y pixel correlation between the second hologram and the second subset of light-modulating pixels, wherein y is an integer;
- wherein the first subset of light-modulating pixels displaying the first hologram projects a first image area having a first area when illuminated with light having a first wavelength;
- and
- wherein the second subset of light-modulating pixels displaying the second hologram projects a second image area having a second area when illuminated with light having a second wavelength,
- wherein x #y, such that the first area and second area are substantially the same size.
A method of displaying holograms, the method comprising:
- providing a plurality of light-modulating pixels, each light-modulating pixel being configured to modulate phase of light received thereby at a plurality of modulation levels, the plurality of light-modulating pixels comprising a first subset of light modulating pixels and a second subset of light-modulating pixels;
- receiving data relating to a first hologram comprising a first plurality of hologram pixels each having the respective hologram pixel value;
- displaying the first hologram on the first subset of light-modulating pixels such that there is a 1:x pixel correlation between the first hologram and the first subset of light-modulating pixels pixels, wherein x is an integer;
- receiving data relating to a second hologram comprising a second plurality of hologram pixels each having a respective hologram pixel value;
- displaying the second hologram on the second subset of light-modulating pixels such that there is a 1:y pixel correlation between the second hologram and the second subset of light-modulating pixels, wherein y is an integer;
- illuminating the first subset of light-modulating pixels displaying the first hologram with light having a first wavelength so as to project a first image area having a first area;
- and
- illuminating the second subset of light-modulating pixels displaying the second hologram with light having a second wavelength so as to project a second image area having a second area,
- wherein x #y, such that the first area and second area are substantially the same size.
Dependencies are inferred from the claim text.