Hitachi Chemical Commences Mass Production of "SPD Film" Whose Light Transmittance is Controlled by Adjusting AC Voltage (Business Wire via Yahoo! Finance)

Wednesday, December 16, 2009 | News

CUPERTINO, Calif.—-Hitachi Chemical Co., Ltd. introduced the SPD light-control film technology from New York based Research Frontiers Inc. , and commercialized a roll-coated, wide-width SPD film whose light transmittance can be freely controlled by simply adjusting AC voltage.
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