| 摘要 |
PURPOSE:To reduce a driving voltage, to suppress the generation of crosstalk and to increase the density of an optical shutter array by thinning the thickness of a thin film consisting of a ferroelectric substance provided with electro-optic effect, and forming a sandwich structure consisting of an electrode, a ferroelectric substance and an electrode. CONSTITUTION:The optical shutter array is provided with a thin film 23 consisting of a ferroelectric substance (PLZT) indicating electro-optic effects, a light transmissible common electrode 22 formed on one side of the thin film 23, plural band-like individual electrodes 24 formed on the other side of the thin film 23, and having large optical reflection factors, and a driving part for selecting any one of the individual electrodes 24 and applying a voltage between the selected electrode 24 and the common electrode 22. The optical shutter array 31 connected to a driving power source 32 is arranged so as to form 45 deg. respectively from a polarizer 33 and an analyzer 34. Since the thickness of the PLZT thin film 23 having the electro-optic effects can be thinned, the driving voltage can be reduced and the generation of crosstalk can be suppressed. In addition, the high density formation of the optical shutter array can be attained by the simple sandwich structure consisting of the common electrode 22, the thin film 23 and the individual electrode 24.
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