Automatic control electroluminescent backlight panel

Details Automatic control electroluminescent backlight panel Automatic control electroluminescent backlight panel

1995-05-22

1998-05-05

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315155, 315291, 315307, G09G 310

Patent

active

057479380

ABSTRACT:
An electroluminescent backlight panel for a video display system is automatically controlled by the varying ambient light levels. A light detector receives the ambient light level and sends a corresponding electrical signal to a microcontroller. The microcontroller controls the driving of the eletroluminescent backlight power supply according to varying ambient light levels until an optimum backlight output is reached. The automatic electroluminescent backlight control system is combined with an efficient power supply unit in order to further reduce battery energy consumption.

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