Patent ID: 6419372
Filing Date: 2002-07-16
Classification: G02B,G02F,G09G

Abstract:
A backlight adapted for use in illuminating a flat panel display, the backlight comprising:a circuit card; a plurality of day mode light emitting diodes (LEDs) positioned coplanar with each other and coupled to the circuit card which powers the plurality of day mode LEDs during day mode operation of the backlight; night vision (NVIS) LEDs positioned coplanar with the plurality of day mode LEDs and coupled to the circuit card which powers the NVIS LEDs during night mode operation of the backlight; and an optical wave-guide positioned in front of the plurality of day mode LEDs and the NVIS LEDs and adapted to distribute light from the plurality of day mode LEDs and from the NVIS LEDs forward away from the LEDs and the circuit card.