DRIVE CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE

WIPO Patent Application WO/2017/028347

A1

A drive circuit and a liquid crystal display device. The drive circuit comprises a first diode (D1), a second diode (D2), a third diode (D3), a fourth diode (D4), a first capacitor (C1), a second capacitor (C2), and an adjustable voltage source (Vi). An anode of the first diode (D1) is used for input voltages (VAA). A cathode of the first diode (D1) is connected to an anode of the second diode (D2). A cathode of the second diode (D2) is connected to an anode of the third diode (D3). A cathode of the third diode (D3) is connected to an anode of the fourth diode (D4). A cathode of the fourth diode (D4) is used for output voltages (VGH). A first end of the first capacitor (C1) is connected to a common end of the first diode (D1) and the second diode (D2). A second end of the first capacitor (C1) is connected to an output end of the adjustable voltage source (Vi). A selection end of the adjustable voltage source (Vi) is used for inputting selection voltages (LX1, LX2, LX3). When the input voltages (VAA) are unchanged, the selection voltages (LX1, LX2, LX3) are different and the output voltages (VGH) are different. By means of the method, multiple output voltages (VGH) can be provided, thereby meeting use requirements of users.

ZHANG XIANMING (CN)
CAO DAN (CN)

PCT/CN2015/089263

February 23, 2017

September 09, 2015

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SHENZHEN CHINA STAR OPTOELECT (CN)

G09G3/36

CN101329851A	2008-12-24
CN103178716A	2013-06-26
CN102543022A	2012-07-04
CN1953036A	2007-04-25
CN201766503U	2011-03-16
KR100490045B1	2006-03-23
US20070085803A1	2007-04-19

GUANGZHOU SCIHEAD PATENT AGENT CO., LTD (CN)

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