Method and system for performing sub-pixel compression in order to reduce moire interference in a display system including multiple displays
AssigneePure Depth Limited
InventorsGareth Paul Bell, Darryl Singh
Life of this patent
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Abstract
A multi-display system (e.g., a display including multiple display panels) includes at least first and second displays (e.g., display panels or display layers) arranged substantially parallel to each other in order to display three-dimensional (3D) features to a viewer(s). At least sub-pixel compression is utilized in order to reduce moiré interference.
Claims17
A display device comprising:
- a first display in a first plane for displaying a first image;
- a second display in a second plane for displaying a second image, wherein said first and second planes are approximately parallel to each other;
- a subpixel compressing structure provided between the first and second displays for reducing moire interference, the subpixel compressing structure comprising a first optical element for compressing red light from a red subpixel, green light from a green subpixel, and blue light from a blue subpixel into a white area, and a second optical element for spreading the white area;
- and
- wherein the first optical element comprises a prism and/or a refractive beam mapper, and the second optical element comprises a plurality of microlenses and/or a refractive beam mapper.
A method for displaying images via a display device comprising a rear display in a first plane for displaying a first image, and a front display in a second plane for displaying a second image, wherein said rear and front displays are configured in a system so that the first and second images overlap each other, the method comprising:
- squeezing light from a plurality of sub-pixels of the rear display based on their color to generate a single white stripe;
- prior to the front display, spreading and/or expanding the white stripe to a left and a right of said single white stripe using a bandwidth limited kernel;
- and
- limiting divergence of light from all subpixels of the rear display to less than one pixel distance on said front display.
Dependencies are inferred from the claim text.