Projection display device

摘要

A projection display device includes light source device including a plurality of lamp units; a plurality of lamp covers for covering a plurality of lamp apertures through which respective lamp units are taken in and out; a plurality of lamp power source units for driving respective lamp units; temperature switch for detecting the temperature of light source device; and main control unit. When at least one lamp unit is turned off during operation by opening of corresponding lamp cover, main control unit continues the operation. When at least one lamp unit is turned off during operation by temperature detection of temperature switch or abnormal operation of lamp power source unit, the main control unit stops the operation.

主权项

1. A projection display device, comprising:
a light source device including a plurality of light sources and combining light from the light sources such that the combined light emits from the light source device; a light modulator for modulating the light having emitted from the light source device; a main body cabinet having the light source device and the light modulator disposed therein; a plurality of apertures disposed in the main body cabinet such that the respective light sources are taken in and out therethrough; a plurality of light source covers for covering the respective apertures; a plurality of light source drivers disposed correspondingly to the respective light sources and driving the respective light sources; a plurality of opening and closing detectors disposed correspondingly to the respective light source covers and detecting opening of the respective light source covers; a temperature detector for detecting a temperature of the light source device; a plurality of abnormal operation detectors for detecting that the respective light source drivers do not operate normally; and a control unit, wherein the control unit controls operation in a manner such that
when at least one of the light sources is turned off by opening of a corresponding one of the light source covers while the light source device and the light modulator operate so as to project an image, the projection operation is continued,when at least one of the light sources is turned off by temperature detection of the temperature detector while the light source device and the light modulator operate so as to project an image, the projection operation is stopped, andwhen at least one of the light sources is turned off by abnormal operation of a corresponding one of the light source drivers while the light source device and the light modulator operate so as to project an image, the projection operation is stopped.