HD66789 Datasheet, PDF (118/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Formulas for calculating voltage (Positive polarity) (2)
Grayscale
Voltage
V0
V1
V2
V3
V4
V5
V6
V7
V8
V9
V10
V11
V12
V13
V14
V15
V16
V17
V18
V19
V20
V21
V22
V23
V24
V25
V26
V27
V28
V29
V30
V31
Formula
VINP0
V4+(VINP1-V4)*(15/24)
V4+(VINP1-V4)*(8/24)
V4+(VINP1-V4)*(4/24)
VINP2
V10+(V4-V10)*(20/24)
V10+(V4-V10)*(16/24)
V10+(V4-V10)*(12/24)
V10+(V4-V10)*(8/24)
V20+(V8-V20)*(4/24)
VINP3
V21+(V10-V21)*(21/24)
V21+(V10-V21)*(19/24)
V21+(V10-V21)*(17/24)
V21+(V10-V21)*(15/24)
V21+(V10-V21)*(13/24)
V21+(V10-V21)*(11/24)
V21+(V10-V21)*(9/24)
V21+(V10-V21)*(7/24)
V21+(V10-V21)*(5/24)
V21+(V10-V21)*(3/24)
VINP4
V27+(V21-V27)*(20/24)
V27+(V21-V27)*(16/24)
V27+(V21-V27)*(12/24)
V27+(V21-V27)*(8/24)
V27+(V21-V27)*(4/24)
VINP5
VINP6+(V27-VINP6)*(20/24)
VINP6+(V27-VINP6)*(16/24)
VINP6+(V27-VINP6)*(9/24)
VINP7
Note : Make sure DDVDH - V0 > 0.5V
DDVDH - V4 > 1.1V
Preliminary
Rev.0.12, May 09 2003, page 118 of 156