Patent ID: 8786644

Claim:
A control device comprising: an output unit configured to output a signal for controlling an electro-optical device having a plurality of pixels which are provided so as to correspond to intersections of a plurality of scanning lines and a plurality of data lines, to the electro-optical device; a control unit configured to control the output unit to output a signal for applying a voltage corresponding to data stored in a memory to the plurality of data lines, and a color quantization process unit configured to perform a color quantization process for a grayscale value of each of the plurality of pixels, indicated by data stored in the memory, wherein a first image which has a first spatial frequency of grayscale variations in an extending direction of the data lines is written by the signal when a first condition is satisfied, and a second image which has a second spatial frequency of grayscale variations in the extending direction of the data lines is written by the signal when a second condition is satisfied, the first spatial frequency is higher than the second spatial frequency, and the color quantization process unit is configured to perform the color quantization process so that the first image which is obtained through the color quantization process when the first condition is satisfied has the first spatial frequency and the second image which is obtained through the color quantization process when the second condition is satisfied has the second spatial frequency.