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:
May. 25, 2010
Filed:
Aug. 03, 2006
Beom-jun Kim, Seoul, KR;
Yu-jin Kim, Asan-si, KR;
Byeong-jae Ahn, Seoul, KR;
Bong-jun Lee, Seoul, KR;
Beom-Jun Kim, Seoul, KR;
Yu-Jin Kim, Asan-si, KR;
Byeong-Jae Ahn, Seoul, KR;
Bong-Jun Lee, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A shift register includes a plurality of stages to output a plurality of output signals, in sequence. Each of the stages includes a driving part and a discharging part. The driving part outputs an output signal of a present stage based on one of a start signal and an output signal of a previous stage, and a clock signal. The discharging part discharges the output signal of the present stage. The discharging part includes a discharge transistor and an auxiliary transistor. The discharge transistor has a gate electrode receiving an output signal of a next stage. The auxiliary transistor has a gate electrode receiving the output signal of the next stage. The auxiliary transistor is electrically connected in series to the discharge transistor. Therefore, the chance of a malfunction is decreased, and image display quality of the display device is improved.