DISPLAY DEVICE FOR COMPENSATING OPTICAL MODULATOR'S DISPLACEMENT IN ACCORDANCE WITH TEMPERATURE VARIATION

摘要

One display equipment is arranged to maintain brightness numerical constant, by the change for compensating the light modulator according to temperature change. In order to show an image (360), a light source (310) irradiation light is to a light modulator (330). One lamp optical system (320) concentrates light, comes out from the light source on light modulator. Light modulator modulates light is according to the income exported from one drive circuit (390) and the driving signal of output. A kind of imaging optical system (340) delivers the adjusted photo that exports from light modulator to a scanning system (350). The temperature output temperature signal that one temperature sensor (370) passes through measurement light modulator. It compensates (380) and exports thermal compensation signal, be used for the displacement variation according to temperature change compensation light modulator.