Patent ID: 8432419
Filing Date: 2013-04-30
Classification: G02F,G09G

Abstract:
1. A driving apparatus that supplies a drive signal to a pixel portion of a liquid crystal light modulator, the drive signal including a plurality of frames each of which is a period during which an effective voltage based on modulation data is applied to the pixel portion of the liquid crystal light modulator, the driving apparatus comprising: a generating unit that generates, for each frame, the drive signal, said drive signal containing a plurality of pulses at said effective voltage, said generating unit: (a) in a first mode, increasing the number of pulses contained in each frame in accordance with an increase of the modulation data when the number is less than a predetermined number, and (b) in a second mode, increasing the width of a pulse contained in each frame, on an individual basis, in accordance with the increase of the modulation data when the number has reached the predetermined number; and a supplying unit that supplies the drive signal generated by the generating unit to the liquid crystal light modulator.