OPTICAL THIN FILM TRANSISTOR-TYPE FINGERPRINT SENSOR
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United States of America Patent
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Aug 11, 2016
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Sep 17, 2014
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Sep 27, 2013
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Abstract
The present invention relates to an optical thin film transistor-type fingerprint sensor, which comprises a backlight unit for irradiating light, including at least one of a red light source, the green light source and the infrared light source; and a photo sensor unit for sensing light irradiated from the backlight unit and reflected by a fingerprint of a user.
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