3.5. Backlight Specifications
LED Forward Voltage
LED Forward Current
IL -- -- 760 mA
BL -- 50,000 --
Ta = 25ºC
*1), IL = 760mA
IL = 760mA
*3),*4), IL = 760 mA
*1) VL is specified as the sum of the white LED forward voltages.
*2) LEDs are best driven using a constant current source. To avoid chromaticity shifts while dimming pulse-width modulation
(PWM) techniques may be employed (0-100% duty cycle).
*3) Backlight lifetime is defined as the time when the brightness becomes 50% of the initial value.
*4) The lifetime of the backlight depends on the ambient temperature. The lifetime will decrease under high
temperature unless LED forward current is reduced accordingly.
*5) LED forward current derating curve:
*5) Recommended backlight power supply:
Apollo Display Technologies, LLC.
Document: TS‐002‐467‐01‐R0 2/27/2008 Page. 9 of 24