| 摘要 |
PURPOSE:To obtain a sufficient transmission liquid quantity in a shutter-ON state and to perform a fast shutter operation, by impressing an open operation voltage which holds an optical shutter in a state where a beam of light transmits for a time longer than a selective period allocated for the control of one optical shutter. CONSTITUTION:In the driving of a liquid crystal optical device which controls the light transmission states of plural optical shutters, by impressing the open operation voltage which holds one optical shutter in the state where the beam of light transmits for the time longer than the selective period allocated for the control of one optical shutter, out of one repeating period where the light transmission state of the optical shutter is controlled in order, the ON-state of the selective period can be expanded to the extent of a part of non-selective period. In such way, it is possible to obtain a sufficient transmission light quantity in the shutter-ON state, and to perform the fast shutter operation. Also, it is possible to control the transmission light quantity by combining the waveforms of liquid crystal driving signals and to improve a temperature characteristics.
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