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1. (WO2018161926) PIXEL CIRCUIT AND DRIVE METHOD THEREOF, AND DISPLAY PANEL AND DISPLAY DEVICE

Pub. No.:    WO/2018/161926    International Application No.:    PCT/CN2018/078369
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Mar 09 00:59:59 CET 2018
IPC: G09G 3/32
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
合肥鑫晟光电科技有限公司
Inventors: QIAN, Xianrui
钱先锐
Title: PIXEL CIRCUIT AND DRIVE METHOD THEREOF, AND DISPLAY PANEL AND DISPLAY DEVICE
Abstract:
Provided is a pixel circuit, comprising: a first control sub-circuit, a second control sub-circuit, a current measurement sub-circuit, a drive sub-circuit, and an energy storage sub-circuit; the first control sub-circuit is used, under the control of the voltage of a first scan signal terminal, for transmitting the voltage of a data voltage terminal to a first node; the second control sub-circuit is used, under the control of the voltage of a second scan signal terminal, for transmitting the voltage of the first node to a control terminal of the drive sub-circuit; the current measurement sub-circuit is used, under the control of the voltage of the first node, for outputting a measurement current and measuring the current value of the measurement current; the drive sub-circuit is used, under the control of the voltage of the control terminal of the drive sub-circuit, for outputting a drive current; the energy storage sub-circuit is used for storing electrical energy.