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Vcc - VEE = 15.5V
V1L = V1R, V3L = V3R = Vcc - 2/7 (Vcc - VEE)
V2L = V2R, V4L = V4R = Vcc + 2/8 (Vcc - VEE)
The following is a description of the range of power supply voltage for liquid crystal display drive.
Apply positive voltage to V1L = V1R and V3L = V3R and negative voltage to V2L = V2R and V4L
= V4R within the ¡ µ
V range. This range allows stable impedance on driver output (RON). Notice
that ¡ µ
V depends on power supply voltage Vcc - VEE.
Correlation between Driver
Correlation between Power
Output Waveform and Power
Supply Voltage Vcc - VEE and ¡ µ
V
Supply Voltages for Liquid
Crystal Display Drive
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AX6018 Dot Matrix Liquid Crystal Graphic Display Column Driver
ASLIC MICROELECTRONICS CORP.
¸ à
µ Ø
¹ q¤ lª Ñ
¥ ÷
¦ ³
- -
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Page 5
RON
Terminal Y
(Y1 - Y64)
V1L, V1R
V3L, V3R
V4L, V4R
V2L, V2R
¡´
¡´
¡´
¡µV
¡µV
Vcc
V1 (V1L =V1R)
V3 (V3L = V3R)
V4 (V4L = V4R)
V2 (V2L = V2R)
VEE
Range of Power Supply
Voltage for Liquid Crystal
Display Drive
8
17.0
5.0
3
Vcc - V
EE (V)
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