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. 03, 2008
Filed:
Dec. 28, 2004
Young Sik Kim, Gyeongsangbuk-do, KR;
Su Hwan Moon, Gyeongsangbuk-do, KR;
Sun Yong Lee, Gumi-si, KR;
Kwang Sik Hwang, Seoul, KR;
Young Sik Kim, Gyeongsangbuk-do, KR;
Su Hwan Moon, Gyeongsangbuk-do, KR;
Sun Yong Lee, Gumi-si, KR;
Kwang Sik Hwang, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A shift register having an amorphous silicon thin film transistor for decreasing a distortion of the output signal is disclosed. In the shift register having a plurality of stages for shifting an input signal using first and second driving voltages, first and second clock signals and a start pulse, each of said plurality of stages includes an output buffer for selectively applying any one of the first and second clock signals and the second driving voltage to an output line under control of first and second nodes; a pre-charger for pre-charging the first driving voltage into the first node in response to said start pulse; a second node controller for selectively supplying the first and second driving voltages to the second node in such a manner to be opposite to the first node using said start pulse and an output signal of the next stage; and a first node controller for supplying the second driving voltage to the first node in a time interval excluding the time interval for said pre-charging.