×

Display system with luminance calculation

  • US 4,952,917 A
  • Filed: 01/14/1988
  • Issued: 08/28/1990
  • Est. Priority Date: 01/19/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. A display system comprising:

  • image displaying means for displaying a predetermined image on a screen by a raster scan;

    image data generating means or generating predetermined image data to be displayed by said image displaying means;

    storing means fore storing information representative of said predetermined image data generated by said image data generating means; and

    image designating means for supplying said information stored in said storing means to said image displaying means in synchronism with said raster scan, said image designating means including luminance calculating means for calculating a value of luminance in accordance with contents of said information stored in said storing means and luminance controlling means for controlling luminance of said screen of said image displaying means in response to said calculated luminance value;

    wherein said luminance calculating means adds luminance data to a sum of previous luminance data each time information for a pixel of said screen is read from said storing means, thereby calculating luminance of the screen for one image to be displayed by said image displaying means.

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