HD66766R Datasheet, PDF (26/97 Pages) Hitachi Semiconductor – 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors

HD66766R
Rev. 1.0-1 / September 2002
VR2–0: These bits amplifies 1.1 to 3.4 times the VREFL as output voltage VREFM of LCD drive
reference voltage generation circuit. The VREFM should be smaller than VOUT level.
Table 19 Contrast control
VR2 VR1 VR0 VREFM voltage
0
0
0 VREFL x 1.1
0
0
1 VREFL x 1.3
0
1
0 VREFL x 1.4
0
1
1 VREFL x 1.5
1
0
0 VREFL x 1.7
1
0
1 VREFL x 1.8
1
1
0 VREFL x 3.4
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