HD66760 Datasheet, PDF (24/105 Pages) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

HD66760
R/W RS DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
W 1 0 0 0 BS2 BS1 BS0 BT1 BT0 PS1 PS0 DC1 DC0 AP1 AP0 SLP STB
Figure 6 Power Control Instruction
Contrast Control (R04h)
CT6–0: These bits control the LCD drive voltage (potential difference between V1 and GND) to adjust 128-
step contrast. For details, see the Contrast Adjuster section.
R/W RS DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
W 1 0 0 0 0 0 VR2 VR1 VR0 0 CT6 CT5 CT4 CT3 CT2 CT1 CT0
Figure 7 Contrast Control Instruction
HD66760
VLCD
VR
R
R
R0
CT6: short, 3R
CT5-0: 0.05R-3.2R
+
–
V1
+
–
V2
+
–
V3
BS2-0: 0-7R
R
R
GND
+
–
V4
+
–
V5
GND
Figure 8 Contrast Adjuster