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Abstract

The depixelated visual display relates to visual displays which combine generated images with the view of the environment surrounding a user and transmit such combined visual information to the eye position of the user. Image generators, such as a cathode ray tube and a liquid crystal display, produce an image composed of a multiplicity of pixels in a plane. The dark area between pixels becomes more prominent in a visual display. To eliminate this dark area while conserving photons, the depixelated visual display has a crossed diffraction grating (1) placed parallel to the pixel plane of the image generator on the side from which light exits the pixels. Prior techniques for depixelation had not controlled the direction into which image light is diffracted, as does the crossed diffraction grating (1), and, unlike the crossed diffraction grating (1), required sources of light which create heat that can be detrimental to a liquid crystal display.

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First Claim