公开(公告)号：US10446077B2

公开(公告)日：2019-10-15

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：US20190206326A1

公开(公告)日：2019-07-04

申请号：US16043977

申请日：2018-07-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lirong Wang ,  Quanhu Li ,  Fei Yang ,  Danna Song ,  Mingi Chu ,  Song Meng ,  Yu Wang ,  Yi Chen ,  Zhongyuan Wu

IPC: G09G3/3258 ,  G09G3/20 ,  H05B33/08

CPC classification number: G09G3/3258 ,  G09G3/2003 ,  G09G2310/0264 ,  H05B33/0857

Abstract: The disclosure discloses a method for driving a pixel circuit, a drive device and a display device. The method includes: receiving grayscale data to be displayed; determining a voltage compensation value, which corresponds to theoretical drive voltage corresponding to the grayscale data to be displayed, according to a pre-acquired correspondence relationship between theoretical drive voltage corresponding to respective grayscale data, and corresponding voltage compensation values; wherein the voltage compensation value is a voltage drop caused by a detection transistor and a drive transistor in the pixel circuit; and compensating the theoretical drive voltage corresponding to the grayscale data to be displayed with the determined voltage compensation value, and then driving a light-emitting diode in the pixel circuit to emit light.

公开(公告)号：US10321559B2

公开(公告)日：2019-06-11

申请号：US15214368

申请日：2016-07-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Song Meng ,  Danna Song

IPC: H05K1/02 ,  H05K1/14 ,  H05K3/36 ,  H05K1/11 ,  H05K1/18

Abstract: The display device comprises a printed circuit board, a display panel and a chip on film for connecting the printed circuit board with the display panel. The chip on film comprises a plurality of output pads and a plurality of first test pads which are close to the plurality of output pads and arranged at intervals. The display panel comprises a plurality of input pads in one-to-one correspondence with the plurality of output pads of the chip on film, and a plurality of second test pads which are close to the plurality of input pads of the display panel and arranged at intervals. A gap between two adjacent first test pads of the chip on film overlaps a second test pad of the display panel such that the two adjacent first test pads of the chip on film are connected via the second test pad of the display panel.

公开(公告)号：US10262571B2

公开(公告)日：2019-04-16

申请号：US15037797

申请日：2015-10-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Danna Song ,  Cuili Gai ,  Szu Heng Tseng ,  Song Meng ,  Zhongyuan Wu

IPC: G09G3/20 ,  G09G3/3208 ,  G09G3/3225

Abstract: The present disclosure provides a method and an apparatus for controlling image display of a WOLED display apparatus and a WOLED display apparatus. The method includes: converting gray scale data of respective lights with various colors inputted by a signal source into brightness data of the respective lights with various colors; acquiring brightness adjustment data of white sub-pixel lights and brightness adjustment data of the respective lights with various colors on the basis of the brightness data of the respective lights with various colors and proportions of the respective lights with various colors in the white sub-pixel lights; converting the brightness adjustment data of white sub-pixel lights and brightness adjustment data of the respective lights with various colors into gray scale data and outputting and displaying the gray scale data. The above method and apparatus provides a simple calculating method when adjusting the display data and may eliminate color cast.

公开(公告)号：US10127854B2

公开(公告)日：2018-11-13

申请号：US15219707

申请日：2016-07-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei Yang ,  Szu Heng Tseng ,  Yue Wu ,  Song Meng

IPC: G09G5/02 ,  G09G3/20 ,  G09G3/36

Abstract: The present disclosure provides a display driving method, apparatus and a display device. The method comprises: acquiring pixel data of N pixels, N=i*j, i being a coefficient and being a positive integer, and j being the number of pixels in each row; determining, for each pixel data, brightness values of respective sub-pixels in a pixel corresponding to the pixel data; calculating an analog power supply voltage of a source driver chip of a display module according to respective brightness values, the analog power supply voltage being positively correlated with the brightness values.

公开(公告)号：US20180240410A1

公开(公告)日：2018-08-23

申请号：US15549553

申请日：2017-02-17

Applicant: BOE Technology Group Co., Ltd.

Inventor： Fei Yang ,  Song Meng ,  Yue Wu ,  Yu Wang

IPC: G09G3/3291 ,  G09G3/3283 ,  G09G3/3266

Abstract: A driving method of an organic light-emitting display device, the display device includes a plurality of sub-pixels, each of the sub-pixels includes a driving transistor, an organic light-emitting diode and a sense line connected to the driving transistor and the organic light-emitting diode, the method includes: detecting threshold voltages of driving transistors of the sub-pixels or turn-on voltages of organic light-emitting diodes of the sub-pixels by sense lines; calculating a first driving voltage of a data driving circuit or a second driving voltage applied to anodes of the organic light-emitting diodes according to all detected threshold voltages or detected turn-on voltages respectively; and based on the first driving voltage or the second driving voltage, applying data driving voltages and supply voltages to the sub-pixels.