LIQUID CRYSTAL PROJECTOR APPARATUS

PROBLEM TO BE SOLVED: To provide a liquid crystal projector apparatus that controls the temperatures of display devices so that a suitable temperature balance can be maintained between the display devices even in an environment where not all the display devices can be controlled within a predetermin...

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Bibliographische Detailangaben
Hauptverfasser:	KONO TOSHIRO, MOTOMIYA YOJI, FUKUDA MITSUJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a liquid crystal projector apparatus that controls the temperatures of display devices so that a suitable temperature balance can be maintained between the display devices even in an environment where not all the display devices can be controlled within a predetermined temperature range.SOLUTION: A liquid crystal projector apparatus comprises: a plurality of display devices 161, 221, and 251 that respectively modulate light with different color components; and a control part 27 that controls the respective temperatures of the plurality of display devices. When the temperature of the display device with the slowest temperature increasing rate, of the plurality of display devices 161, 221, and 251, does not reach a predetermined temperature, the control part 27 controls the temperatures of the other display devices to be within a predetermined range with the temperature of the display device with the slowest temperature increasing rate as a reference.SELECTED DRAWING: Figure 2 【課題】全ての表示素子を所定の温度範囲内に制御できない環境下においても各表示素子間で好適な温度バランスが保たれるように、各表示素子の温度を制御する液晶プロジェクタ装置を提供する。【解決手段】液晶プロジェクタ装置は、それぞれが異なる色成分の光を変調する複数の表示素子１６１、２２１、２５１と、前記複数の表示素子それぞれの温度を制御する制御部２７とを備える。制御部２７は、前記複数の表示素子１６１、２２１、２５１の内、温度上昇速度が最も遅い表示素子の温度が所定の温度に満たない場合、他の表示素子の温度を前記温度上昇速度が最も遅い表示素子の温度を基準とした所定範囲内になるように制御する。【選択図】図２