公开(公告)号：US20200005711A1

公开(公告)日：2020-01-02

申请号：US16555538

申请日：2019-08-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei YANG ,  Song MENG ,  Hongjun XIE ,  Quanhu LI ,  Yue WU ,  Yu WANG

IPC: G09G3/3233

Abstract: A driving method for preventing image sticking of a display panel (805) upon shutdown, and a display device (800). The method includes: receiving a shutdown signal (S01, S16); and adjusting driving signals of a sub-pixel circuit (708, 810) of the display panel (805), so as to reduce the voltage difference between a gate electrode and a source electrode of a driving transistor (T1) of the sub-pixel circuit, and hence allowing the display panel (805) to enter an image sticking prevention mode (S02, S17). The method can prevent image sticking of the display panel (805) at the time of shutdown and hence improve the display quality.

公开(公告)号：US20180315392A1

公开(公告)日：2018-11-01

申请号：US15565907

申请日：2017-05-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yu WANG ,  Fei YANG ,  Yue WU ,  Quanhu LI ,  Song MENG

IPC: G09G3/38 ,  G02F1/163

CPC classification number: G09G3/38 ,  G02F1/163 ,  G02F2001/1635 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2310/0275

Abstract: A pixel circuit is provided which includes a data writing module, a drive module, a control module and an electrochromic device. The data writing module provides a data signal to the control terminal of the drive module under the control of a first control signal. The drive module drives the electrochromic device for colour development or colour fading according to a power supply voltage signal under the control of the data signal. The control module controls the conduction between the drive module and the electrochromic device on the basis of a second control signal, and the control module controls the conduction so that the conduction is realized later than the change in the power supply voltage signal. The pixel circuit effectively removes interference of the power supply voltage signal, avoids display fluctuations caused by the change in the power supply voltage signal, and further improves the display effect.

公开(公告)号：US20180197472A1

公开(公告)日：2018-07-12

申请号：US15535585

申请日：2016-12-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei YANG ,  Song MENG ,  Hongjun XIE ,  Quanhu LI ,  Yue WU ,  Yu WANG

IPC: G09G3/3233

Abstract: A driving method for preventing image sticking of a display panel upon shutdown, and a display device. The method includes: receiving a shutdown signal; and adjusting driving signals of a sub-pixel circuit of the display panel, so as to reduce the voltage difference between a gate electrode and a source electrode of a driving transistor of the sub-pixel circuit, and hence allowing the display panel to enter an image sticking prevention mode. The method can prevent image sticking of the display panel at the time of shutdown and hence improve the display quality.