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:
Apr. 05, 2011
Filed:
Sep. 07, 2007
Yoon-sung Um, Yongin-si, KR;
Seung-hoo Yoo, Seongnam-si, KR;
Hee-wook DO, Suwon-si, KR;
Hyun-cheol Moon, Seoul, KR;
Kang-woo Kim, Seoul, KR;
Hye-ran You, Incheon, KR;
Yoon-Sung Um, Yongin-si, KR;
Seung-Hoo Yoo, Seongnam-si, KR;
Hee-Wook Do, Suwon-si, KR;
Hyun-Cheol Moon, Seoul, KR;
Kang-Woo Kim, Seoul, KR;
Hye-Ran You, Incheon, KR;
Abstract
An additional capacitor ('sharing capacitor') is provided for each pixel of a liquid crystal display to store the previous voltage on the pixel electrode (i.e. the voltage obtained in the previous frame). At an opportune time after the pixel electrode has begun to charge for the current frame, the sharing capacitor's electrode is coupled to the pixel electrode to combine the pixel electrode's voltage with the sharing capacitor's voltage. As a result, the pixel electrode's voltage is changed to take into account the previous voltage so as to increase the liquid crystal's response speed. More particularly, the sharing capacitor's voltage changes the pixel voltage to provide a greater voltage overshoot or undershoot when the pixel color is changed a lot, so as to increase the liquid crystal response time. Therefore, greater response speed is provided at low power.