D01-501106-01 Rev B
DSVGA Design Reference Board Manual
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BIASN: Normal board – BIASN=3 gives the best results.
VCOM Mode
VCOMMODE:
Dimming: use register VCOM to set brightness level in Manual mode.
Gamma
To compensate for the non-linear dependency of luminance on the voltage of the
OLED diode, the R, G and B signals include internal gamma correction to
linearize the pixel response as a function of the input video signal. This gamma
correction takes place in the PIC microcontroller.
The gamma correction consists of a nine segment piece-wise-linear function whose
parameters are set from the pull-down menu or via registers in the “Gamma” panel on
the windows software. All three color channels have the same PWL shape.
There are multiple ways to set the Gamma using the windows software. The Gamma
section of the software is shown below.
Figure 6-5 Gamma Section of the Software
6.6.1. Gamma Coefficients GC(0-8)
