Invention Grant
- Patent Title: Scan driving circuit and NAND logic operation circuit thereof
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Application No.: US14433857Application Date: 2015-01-28
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Publication No.: US09786692B2Publication Date: 2017-10-10
- Inventor: Chao Dai
- Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Applicant Address: CN Shenzhen, Guangdong
- Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
- Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
- Current Assignee Address: CN Shenzhen, Guangdong
- Agent Andrew C. Cheng
- Priority: CN201510013180 20150109
- International Application: PCT/CN2015/071705 WO 20150128
- International Announcement: WO2016/109994 WO 20160714
- Main IPC: H01L27/12
- IPC: H01L27/12 ; G02F1/1368 ; H03K19/0944 ; G09G3/36

Abstract:
The invention provides a scan driving circuit for an oxide semiconductor thin film transistor and a NAND logic operation circuit thereof. The NAND logic operation circuit includes: a first inverter and a second inverter applied to a pull-down holding circuit of a GOA circuit, and multiple transistors. The invention uses the combination of NFTF and inverter to replace a function of original PMOS elements and thereby achieves characteristics similar to that of the original CMOS NAND operation circuit. Accordingly, the invention can solve the design problem of IGZO TFT single type of device logic operation circuit and thus is more suitable for integrating a large scale digital integrated circuit on a liquid crystal display device.
Public/Granted literature
- US20170229081A1 SCAN DRIVING CIRCUIT AND NAND LOGIC OPERATION CIRCUIT THEREOF Public/Granted day:2017-08-10
Information query
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