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.

公开(公告)号：US20160253966A1

公开(公告)日：2016-09-01

申请号：US14653973

申请日：2014-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hongjun XIE ,  Weiqiang ZHANG

IPC: G09G3/3233 ,  G09G3/3258

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G3/3258 ,  G09G2310/0245 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2330/027 ,  G09G2330/04 ,  G09G2330/12

Abstract: There are disclosed a driving circuit of an organic light emitting display panel and an organic light emitting display apparatus. The driving circuit comprises: a power supply detection circuit configured to detect an operating state of an external input power supply, send a normal signal of power supply detection when it is determined that the external input power supply is in a normal state, and send a abnormal signal of power supply detection when it is determined that the external input power supply is in an abnormal state; a clock control circuit configured to convert a received video data into image data recognizable by the organic light emitting display panel and then output it to the organic light emitting display panel when the normal signal of power supply detection sent by the power supply detection circuit is received, and output image data of black picture to the organic light emitting display panel when the abnormal signal power supply detection sent by the power supply detection circuit is received. In this way, pixel charges accumulated on respective display pixels can be released, which avoids transistors inside the display pixels from producing stress, and finally avoids occurrence of shutdown image sticking due to power-down.

Abstract translation: 公开了有机发光显示面板和有机发光显示装置的驱动电路。 驱动电路包括：电源检测电路，被配置为检测外部输入电源的工作状态，当确定外部输入电源处于正常状态时，发送正常的电源检测信号，并发送 当确定外部输入电源处于异常状态时，电源检测异常信号; 时钟控制电路，被配置为当接收到的视频数据转换成由有机发光显示面板可识别的图像数据，然后当接收到由电源检测电路发送的电源检测的正常信号时，将其输出到有机发光显示面板 并且当接收到由电源检测电路发送的异常信号电源检测时，将黑色图像的图像数据输出到有机发光显示面板。 以这种方式，可以释放累积在各个显示像素上的像素电荷，这避免了显示像素内的晶体管产生应力，最终避免了由于掉电引起的关闭图像残留的发生。

公开(公告)号：US20160253960A1

公开(公告)日：2016-09-01

申请号：US14758419

申请日：2014-12-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hongjun XIE

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2360/147

Abstract: A display panel optical compensating apparatus, a display panel and a display panel optical compensating method are provided. The display panel optical compensating apparatus comprises a storage unit (1), a data unit (2), a timing control unit (3) and a switch (4). When the switch (4) is in a first position, the timing control unit (3) has no data exchange with the storage unit (1), and the data unit (2) receives compensated data and burns the compensated data into the storage unit (1). When the switch (4) is in a second position, the timing control unit (3) reads the compensated data in the storage unit (1), performs a compensating operation on display data, and outputs compensated display data. The display panel optical compensating apparatus, the display panel and the display panel optical compensating method realize simple structure, flexible operation, high stability, and fast tempo, and are suitable for mass production.

Abstract translation: 提供了显示面板光学补偿装置，显示面板和显示面板光学补偿方法。 显示面板光学补偿装置包括存储单元（1），数据单元（2），定时控制单元（3）和开关（4）。 当开关（4）处于第一位置时，定时控制单元（3）与存储单元（1）没有数据交换，数据单元（2）接收补偿数据并将补偿数据烧录到存储单元 （1）。 当开关（4）处于第二位置时，定时控制单元（3）读取存储单元（1）中的补偿数据，对显示数据执行补偿操作，并输出补偿显示数据。 显示面板光学补偿装置，显示面板和显示面板光学补偿方法实现结构简单，操作灵活，稳定性高，速度快，适合批量生产。