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Sculptured transflector for dual mode active matrix liquid crystal display backlight

  • US 6,039,451 A
  • Filed: 06/04/1998
  • Issued: 03/21/2000
  • Est. Priority Date: 06/04/1998
  • Status: Expired due to Term
First Claim
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1. An avionics display for use in the cockpit of an aircraft, the display comprising:

  • a liquid crystal display device;

    a day mode light source positioned on a first side of the liquid crystal display device and adapted to controllably provide a first source of light for use by the liquid crystal display device in displaying information during day mode operations;

    a night mode light source positioned on the first side of the liquid crystal display device and adapted to controllably provide a second source of light for use by the liquid crystal display device in displaying information during night mode operations; and

    a sculptured transflector positioned between the day mode light source and the night mode light source, a first side of the sculptured transflector adjacent the day mode light source having a transflective material thereon and forming a plurality of arcuate surfaces, wherein the transflective material and the plurality of arcuate surfaces are adapted to maximize a percentage of light from the day mode light source which is reflected toward the liquid crystal display device.

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