Substrate for fingerprint contact
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United States of America Patent
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Feb 11, 2014
Grant Date -
Feb 28, 2013
app pub date -
Feb 13, 2012
filing date -
Aug 24, 2011
priority date (Note) -
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Abstract
A substrate for fingerprint contact includes a plate, and the plate includes a first surface and a second surface. The first surface is an optical diffusing surface. The optical diffusing surface is used for being contacted by a finger, and features hazed particles. The second surface faces an optical imaging system. The optical diffusing surface of the plate helps to enhance light to be evenly emitted to the finger and weakens the unnecessary scattered light to the optical imaging system, so as to enhance the recognition rate of a fingerprint when the optical imaging system is used for intercept the light applied on a finger.
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