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Systems and methods for compensating brightness uniformity of backlit image displays

  • US 20090086473A1
  • Filed: 09/28/2007
  • Published: 04/02/2009
  • Est. Priority Date: 09/28/2007
  • Status: Active Grant
First Claim
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1. A method of compensating brightness uniformity of display for an information handling system, comprising:

  • providing a transmissive display panel and one or more main backlight lamps configured to provide light to said transmissive display panel;

    providing one or more auxiliary backlight lamps configured to supplement light provided by said main backlight lamps to light said transmissive display panel;

    lighting an area of said transmissive display panel with said main backlight lamps; and

    providing light from said auxiliary backlight lamps to supplement light provided by said main backlight lamps to light said area of said transmissive display panel;

    wherein said area of said transmissive display panel is lit with a first brightness uniformity by said main backlight lamps alone; and

    wherein said area of said transmissive display panel is lit with a second brightness uniformity by said main backlight lamps and said auxiliary backlight lamps together, said second brightness uniformity being greater than said first brightness uniformity.

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