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:
Mar. 24, 2009
Filed:
Dec. 30, 2002
Choong Hoo Kim, Seoul, KR;
Kyu Chang Park, Seoul, KR;
Min Soo Shim, Seoul, KR;
Hydis Technologies Co., Ltd., Gyeonggi-do, KR;
Abstract
Disclosed is a liquid crystal display device. The device comprises a scan drive unit for selectively outputting turn-on/turn-off signals in the image display mode and outputting turn-on signals in the fingerprint recognition mode; a data drive unit for outputting data signals in the image display mode; a switch control unit for outputting turn-off signals in the image display mode and for selectively outputting turn-on/turn-off signals in the fingerprint recognition mode; a reading unit for outputting fingerprint image information read in the fingerprint recognition mode; a sensor thin film transistor for driving liquid crystal in the image display mode; and a switch thin film transistor having a channel with a first end and a second end, a drain and a source.