G104X1-L01 Datasheet, PDF (16/26 Pages) AZ Displays – TFT LCD Approval Specification

Issued Date: Aug. 26, 2008
Model No.: G104X1-L01
Approval
6.2 POWER ON/OFF SEQUENCE
To prevent a latch-up or DC operation of LCD assembly, the power on/off sequence should be as the diagram
below.
Power Supply
VCC
0V
0.5 T1 10ms
0 T2 50ms
0 T3 50ms
500ms T4
Signals
0V
0.9 VCC
0.1VCC
T1
T2
Power On
VALID
0.9 VCC
0.1Vcc
T3
T4
Power Off
Backlight (Recommended)
500ms T5
100ms T6
50% 50%
T5
T6
Power ON/OFF Sequence
Note (1) The supply voltage of the external system for the assembly input should follow the definition of Vcc.
Note (2) Apply the lamp voltage within the LCD operation range. When the backlight turns on before the LCD
operation or the LCD turns off before the backlight turns off, the display may momentarily become
abnormal screen.
Note (3) In case of Vcc is in off level, please keep the level of input signals on the low or keep a high
impedance.
Note (4) T4 should be measured after the assembly has been fully discharged between power off and on period.
Note (5) Interface signal shall not be kept at high impedance when the power is on.
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Version2.2