IMAGE DISPLAY DEVICE AND CONTROL METHOD FOR IMAGE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To control the amount of light of a plurality of light sources by a method that does not delay the process or complicate the circuit structure.SOLUTION: An image display device includes: N (N is an integer of 2 or more) number of light sources 30; a synthesis optical system 50 that synthesizes the light emitted from the N number of light sources; an optical modulation device 60 that modulates the light synthesized by the synthesis optical system 50; N number of adjustment units 40 each of which adjusts the amount of light entering the optical modulation device 60 from the N number of light sources 30; and a control unit 130 that controls the amount of light by controlling M (M is an integer of 1 or more and less than N) number of adjustment units 40 selected from the N number of adjustment units 40.SELECTED DRAWING: Figure 1