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Canon Inc
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Canon Inc
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Application filed by Canon IncfiledCriticalCanon Inc
Priority to CA000472482ApriorityCriticalpatent/CA1258327A/fr
Priority to CA000582351Aprioritypatent/CA1278890C/fr
Application grantedgrantedCritical
Publication of CA1258327ApublicationCriticalpatent/CA1258327A/fr
Ferroelectric liquid crystal optical modulation device and driving method therefor to apply an erasing voltage in the first time period of the scanning selection period