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4.2
Power On/Off Sequence
To prevent a latch-up or DC operation of LCD assembly, the power on/off sequence
should be as in the diagram below.
Note 1 Please avoid floating state of interface signal at invalid period
Note 2 When the interface signal is invalid, be sure to pull down the power supply of
LCD VCC to 0 V.
Note 3 The Backlight converter power must be turned on after the power supply for
the logic and the interface signal to be valid. The Backlight converter power
must be turned off before the power supply for the logic and the interface sig-
nal to be invalid.
Parameter
T1
T2
T3
T4
T5
T6
T7
T8
T9
Value
Min.
Typ.
0.5
-
0
-
0
-
500
-
200
-
200
-
5
-
10
-
10
-
17
Unites
Max.
10
ms
50
ms
50
ms
-
ms
-
ms
-
ms
300
ms
-
ms
-
ms
IDK-1115R User Manual
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