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Field-sequential display system utilizing a backlit LCD pixel array and method for forming an image

  • US 5,337,068 A
  • Filed: 02/01/1993
  • Issued: 08/09/1994
  • Est. Priority Date: 12/22/1989
  • Status: Expired due to Fees
First Claim
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1. Apparatus for generating a color image, comprising;

  • display panel means, including a matrix of light valves the light transmissive properties of which can be selectively controlled wherein, single-color images representing separate components of the color image are formed by sequentially activating successive lines of light valves in the matrix of light valves;

    a plurality of single color light sources which are alternately strobed to directly emit light for transmission through the matrix of light valves, wherein each of said single color light sources may be selectively activated to emit light in at least first and second distinct spatial locations corresponding to respectively different lines of said light valves; and

    means for activating, in synchronism, each of the single color light sources in spatial correspondence with the scanning of the lines of the light valve matrix to sequentially illuminate said first and second spatial locations with each one of said single color light sources at respectively different instants;

    wherein;

    each of the light valves in said matrix of light valves is a liquid crystal device, the light transmissive properties of which are externally controlled;

    each of said plurality of single color light sources includes a plurality of individual single color light sources which my be independently activated; and

    the individual single color light sources of each one of said plurality of single color light sources are spatially interleaved with the individual single color light sources of the other ones of said plurality of single color light sources.

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