ST7735
12 Gamma structure
12.1 TRUCTURE OF GRAYSCALE AMPLIFIER
The structure of grayscale amplifier is shown as below. 16 voltage levels (VIN0-VIN15) between GVDD and VGS are
determined by the high/ mid/ low level adjustment registers. Each mid-adjustment level is split into 64 levels again by the
internal ladder resistor network. As a result, grayscale amplifier generates 64 voltage levels ranging from V0 to V63 and
outputs one of 64 levels.
V1.7
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2009-12-04