Slim type fingerprint recognition device using contact light emitting device and thin film transistor fingerprint input device
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United States of America Patent
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Feb 10, 2004
Grant Date -
Oct 2, 2003
app pub date -
Jul 16, 2002
filing date -
Mar 29, 2002
priority date (Note) -
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Abstract
A slim type fingerprint recognition device including: a TFT fingerprint input device having a structure where a plurality of unit cells including an light sensing unit and a switching unit are aligned; and a contact light emitting device being installed on the TFT fingerprint input device, the TFT fingerprint input device and the contact light emitting device being adhered to each other by an adhesive layer, one alternating current terminal being connected to a transparent electrode layer of the contact type light emitting device.
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