×

Display arrangement with backlight means

  • US 6,621,482 B2
  • Filed: 04/04/2001
  • Issued: 09/16/2003
  • Est. Priority Date: 05/15/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus, comprising:

  • a transmissive display arrangement including an array of cells;

    video controlling means for deriving an adjusted video signal from an initial video signal representing a frame to be displayed by the display arrangement;

    backlight means, coupled to the array of cells, for providing a backlight signal to the array in response to a backlight control signal associated with the frame;

    backlight controlling means, coupled to the video controlling means and to the backlight means, for deriving the backlight control signal from the initial video signal and the adjusted video signal;

    wherein the backlight controlling means is configured to further derive the backlight control signal from a maximum allowed value for the initial video signal and from a reference value of the initial video signal, said reference value being determined from a distribution property of the initial video signal.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×