Optical modulator, optical device and projector

摘要

A liquid crystal panel ( 441 ) as an optical modulator includes: a driving board ( 441 C) having a plurality of signal lines, a plurality of switching elements connected to the signal lines and a plurality of picture electrodes connected to the switching elements; an opposing board ( 441 D) being opposed to the driving board ( 441 C) and having common electrodes; and a flexible printed board ( 441 E) electrically connected with the plurality of signal lines and the common electrodes, the flexible printed board extended from between the driving board ( 441 C) and the opposing board ( 441 D). The flexible printed board ( 441 E) is provided with an insertion hole ( 441 E 1 ) for a fluid circulator in which a cooling fluid is circulated to be inserted.