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:
Oct. 01, 2019
Filed:
May. 18, 2017
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Sikun Hao, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The invention provides a DEMUX circuit, comprising: data bus, a first, second and third data lines, connected respectively to data bus and a first unit, a second unit and a third unit respectively; each unit respectively comprising: a TFT, a second TFT, a third TFT, and a capacitor, and inputting corresponding a first, a second, and a third switch signals; for each unit, during operation, when the first switch signal being turned on, the first TFT and the second TFT being turned on, and the corresponding data line is pre-charged; when the first switch signal being turned off, the second switch signal being turned on and the corresponding data line being charged to a preset voltage. The DEMUX circuit of the invention can increase the TFT gate driving voltage, leading to improving TFT electron mobility from IGZO and a-Si process, and improving the data line charging rate.