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:
Sep. 04, 2007
Filed:
Dec. 02, 2004
Wei-jen Hsu, Kaohsiung, TW;
Ming-dou Ker, Hsinchu, TW;
Ying-hsin LI, Kaohsiung, TW;
An Shih, Changhua, TW;
Wei-Jen Hsu, Kaohsiung, TW;
Ming-Dou Ker, Hsinchu, TW;
Ying-Hsin Li, Kaohsiung, TW;
An Shih, Changhua, TW;
TPO Displays Corp., Chu-Nan, TW;
Abstract
A level shifter is provided. The level shifter includes a first input transistor, a second input transistor, a first bias transistor, a second bias transistor, a first switch transistor and a second switch transistor. At the time of change of the signal status, by raising the potential of the body terminal of the first input transistor, the threshold voltage is reduced so that the current flowing through the second input transistor is increased to shorten the time of the change of the signal status.