HD66787 Datasheet, PDF (123/159 Pages) Renesas Technology Corp – 528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat

HD66787
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.0.22, May.23.2003, page 123 of 159