| 摘要 |
PURPOSE: An operation indicator of LCD display is provided to check an operating state of a computer system on the LCD display CONSTITUTION: An operation indicator of LCD display comprises a drive sensing part(12) generating a normal state signal when a driving voltage is supplied and generating an abnormal state signal when the driving voltage is not supplied, a multi-vibrator(14) oscillating when the abnormal state signal is supplied, a first lamp(16) indicating normal state of a computer system, a second lamp(18) emitting light continuously when the computer system is in display power management signaling mode and blinking when the driving voltage is not supplied, and a switch(20) supplying the first lamp(16) or the second lamp(18) with voltage.
|
