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:
Jun. 17, 2014
Filed:
Aug. 10, 2007
Yeon-keun Lee, Daejeon, KR;
Sang-hyun Park, Daejeon, KR;
Hyun-seok Choi, Daejeon, KR;
Jung-doo Kim, Daejeon, KR;
Su-rim Lee, Daejeon, KR;
Yeon-Keun Lee, Daejeon, KR;
Sang-Hyun Park, Daejeon, KR;
Hyun-Seok Choi, Daejeon, KR;
Jung-Doo Kim, Daejeon, KR;
Su-Rim Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed are a light guide plate for a non-contact type coordinate input system, a system including the same, and a non-contact type coordinate input method using the same. More particularly, the present invention relates to a light guide plate for a non-contact type coordinate input system, which eliminates inconvenience of a conventional contact-type coordinate input system inputting coordinates through direct contact, and which can reduce use of sensors and optical loss as much as possible. The present invention also relates to a system including the same, and a non-contact type coordinate input method using the same.