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1. (WO2018045625) FLAT DISPLAY DEVICE AND SCANNING DRIVE CIRCUIT THEREOF

Pub. No.:    WO/2018/045625    International Application No.:    PCT/CN2016/104629
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Sat Nov 05 00:59:59 CET 2016
IPC: G09G 3/20
Applicants: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
武汉华星光电技术有限公司
Inventors: ZHAO, Mang
赵莽
Title: FLAT DISPLAY DEVICE AND SCANNING DRIVE CIRCUIT THEREOF
Abstract:
A flat display device and a scanning drive circuit (10) thereof. The scanning drive circuit (10) comprises a plurality of cascaded scanning drive units (11). Each scanning drive unit (11) comprises a forward/reverse scanning circuit (12), an output circuit (13), a pull-down circuit (14), and a pull-down control circuit (15). The forward/reverse scanning circuit (12) is used for controlling the scanning drive unit (11) to perform forward scanning or reverse scanning; the output circuit (13) outputs a first scanning signal (Gaten), a second scanning signal (Gaten+1), and a third scanning signal (Gaten+3). According to the present invention, the forward/reverse scanning circuit (12), the pull-down circuit (14), and the pull-down control circuit (15) are shared to output the first scanning signal (Gaten), the second scanning signal (Gaten+1), and the third scanning signal (Gaten+3), so as to decrease the number of thin film transistors of the scanning drive circuit (10) and save space, thereby facilitating a narrow-bezel design.