Patent ID: 8777425
Filing Date: 2014-07-15
Classification: G02B,H04N

Abstract:
1. A projection-type display apparatus, comprising: a solid-state light source array that emits light; a mirror device that controls an emitting intensity of the light incident from the solid-state light source array to thereby subject the incident light to temporal modulation, the mirror device including micro-mirrors arranged in a matrix shape; a correction parameter storing unit that stores correction parameters, which control an effective reflection time of the micro-mirrors in a plurality of color lights emitted from the solid-state light source array; a mirror device driver that drives the micro-mirrors based on a modulation control signal, the modulation control signal being based on a video signal and the correction parameters; a power supply control unit that controls the turning on and off of the solid-state light source array based on the video signal and the correction parameters; a projecting device that projects the modulated light; and a measuring device that measures an intensity of emitted ineffective light from the mirror device, the measuring device being disposed on a light path between the solid-state light source array and the projecting device, wherein