Method of displaying a hologram on a display device comprising pixels
AssigneeDualitas Ltd
InventorJamieson Christmas
Life of this patent
Estimating the term…
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.
Claims11
A method of displaying holograms using one or more spatial light modulators, each comprising light-modulating pixels, the method comprising:
- receiving, at a spatial light modulator, a first hologram comprising a first plurality of hologram pixels each having a respective hologram pixel value;
- displaying the first hologram on a plurality of light-modulating pixels of said spatial light modulator by 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 each hologram pixel and the number of light-modulating pixels within the contiguous group, which display its pixel value, wherein each hologram pixel value within the first hologram is displayed on the same number of light-modulating pixels as each of the respective others
- receiving, at a spatial light modulator, a second hologram comprising a second plurality of hologram pixels, each having a respective hologram pixel value;
- and
- displaying the second hologram on a plurality of the light-modulating pixels of said spatial modulator by 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 or a one-to-one pixel correlation between each hologram pixel and the number of light-modulating pixels within the contiguous group displaying its pixel value, wherein each hologram pixel value within the second hologram is displayed on the same number of light-modulating pixels as each of the respective others;
- and
- wherein a first number of light-modulating pixels are used to display each hologram pixel value of the first hologram and a second, different number of light-modulating pixels are used to display each hologram pixel value of the second hologram.
A holographic projector comprising:
- a hologram engine arranged to provide a first hologram comprising a plurality of hologram pixels each having a respective hologram pixel value and a second hologram comprising a second plurality of hologram pixels each having a respective hologram pixel value;
- one or more spatial light modulators;
- and
- a controller arranged to
- selectively-drive a plurality of light-modulating pixels of one of the spatial light modulators so as to display the first hologram by 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 each hologram pixel and the number of light-modulating pixels displaying its pixel value, such that each hologram pixel value within the first hologram is displayed on the same number of light-modulating pixels as each of the respective others, and
- to selectively-drive a plurality of light-modulating pixels of one of the spatial light modulators so as to display the second hologram by 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 or a one-to-one pixel correlation between each hologram pixel and the number of light-modulating pixels displaying its pixel value, such that each hologram pixel value within the second hologram is displayed on the same number of light-modulating pixels as each of the respective others,
- such that a first number of light-modulating pixels are used to display each hologram pixel value of the first hologram and a second, different number of light-modulating pixels are used to display each hologram pixel value of the second hologram.
Dependencies are inferred from the claim text.