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:
Jan. 24, 2012
Filed:
Sep. 26, 2007
IN Jae Chung, Gyeonggi-do, KR;
IN Ho Ahn, Gyeonggi-do, KR;
Seong Ho Baik, Gyeonggi-do, KR;
Sang Hyuck Bae, Seoul, KR;
In Jae Chung, Gyeonggi-do, KR;
In Ho Ahn, Gyeonggi-do, KR;
Seong Ho Baik, Gyeonggi-do, KR;
Sang Hyuck Bae, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A touch-sensing display screen includes an upper transparent substrate, a lower substrate opposite the upper substrate and an infrared light source configured to illuminate a portion of the upper transparent substrate. A light converting layer is disposed between the upper and lower substrate and is configured to convert the infrared light received by the upper transparent substrate to visible light. A pixel thin-film transistor on the lower substrate is configured to activate a pixel electrode, and a light-sensing thin-film transistor is configured to sense the visible light provided by the light converting layer. A light-sense signal is output in response to activation of the light-sensing thin-film transistor.