The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2004
Filed:
Jul. 16, 2002
Applicant:
Inventor:
Sang Hoon Chae, Choongnam, KR;
Assignee:
Testech, Inc., Chunan-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 1/24 ;
U.S. Cl.
CPC ...
G01L 1/24 ;
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.