Control of a light valve that is dependent upon a voltage...

Details Control of a light valve that is dependent upon a voltage... Control of a light valve that is dependent upon a voltage...

2007-04-20

2011-10-25

Le, Que T (Department: 2878)

Optics: image projectors

Lamp control

C250S205000

Reexamination Certificate

active

08042952

ABSTRACT:
In order to provide a high-image-quality display apparatus which can perform proper correction with respect to an abrupt luminance change at the time of lighting of a discharge lamp and a white balance change, a projection type display apparatus which projects irradiating light from a light source unit to a screen through a light valve includes a measurement unit which measures at least one of a voltage value and a current value supplied to the light source unit, and a control unit which controls the light valve based on a measurement result obtained by the measurement unit.

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