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1. (WO2018176556) DRIVING CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE

Pub. No.:    WO/2018/176556    International Application No.:    PCT/CN2017/082629
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: G09G 3/34
G09G 3/32
G09G 3/36
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
深圳市华星光电半导体显示技术有限公司
Inventors: SHI, Longqiang
石龙强
Title: DRIVING CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE
Abstract:
Disclosed is a driving circuit (100), comprising first to fifth electric switches, an electric driving switch (QT), and a capacitor (C). The control end of the first electric switch (Q1) is connected to a scan driving line (Gate(n)), the first end of the first electric switch (Q1) receives a data signal, and the second end of the first electric switch (Q1) is connected to the second end of the electric driving switch (QT); the control end, the first end, and the second end of the electric driving switch (QT) are respectively connected to the capacitor (C), the second end of the second electric switch (Q2), and the first end of the fourth electric switch (Q4); the control end of the second electric switch (Q2) is connected to the scan driving line (Gate(n)); the control end of the third electric switch (Q3) is connected to a first scan compensation line (XGate(n)), and the first end of the third electric switch (Q3) receives a direct current voltage; the control end and the second end of the fourth electric switch (Q4) are respectively connected to the second end of the fifth electric switch (Q5) and the anode of an organic light emitting diode; the control end and the first end of the fifth electric switch (Q5) are respectively connected to a second scan compensation line (XGate(n-1)) and the control end of the third electric switch (Q3); the capacitor (C) is grounded; the signal level outputted by the scan driving line (Gate(n)) is opposite to that outputted by the first scan compensation line (XGate(n-1)). The technical solution makes the brightness of an organic light emitting diode constant, and maintains the normal display of a liquid crystal display device.