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. 15, 2013
Filed:
Dec. 29, 2008
Changkeun Park, Daegu, KR;
Suhwan Moon, Kyungbuk, KR;
Minkyung Lee, Kyungbuk, KR;
Deuksu Lee, Gyeonggi-do, KR;
Taehwan Kim, Seoul, KR;
Miyoung DO, Gyeonggi-do, KR;
Kyohyuck Choo, Gyeonggi-do, KR;
Ilho Kim, Incheon, KR;
Shinkwon Park, Seoul, KR;
Changkeun Park, Daegu, KR;
Suhwan Moon, Kyungbuk, KR;
Minkyung Lee, Kyungbuk, KR;
Deuksu Lee, Gyeonggi-do, KR;
Taehwan Kim, Seoul, KR;
Miyoung Do, Gyeonggi-do, KR;
Kyohyuck Choo, Gyeonggi-do, KR;
Ilho Kim, Incheon, KR;
Shinkwon Park, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including a pixel array and touch sensors, a transparent conductive layer on one substrate of the liquid crystal display panel transmitting display light, a polarizing plate on the transparent conductive layer, a driving voltage supply circuit, and a signal transmitting unit electrically connecting the transparent conductive layer to the driving voltage supply circuit. A portion of the transparent conductive layer is connected to a ground level voltage source. The driving voltage supply circuit generates a driving voltage required to perform light sensing operations of the touch sensors during a touch period based on changes in an amount of surface charge of the transparent conductive layer depending on whether or not the polarizing plate is touched.