公开(公告)号：US20180061333A1

公开(公告)日：2018-03-01

申请号：US15528744

申请日：2016-08-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yifang Chu ,  Chul Gyu Jung ,  Shou Li

IPC: G09G3/34 ,  G09G3/36 ,  G02F1/1335

CPC classification number: G09G3/3406 ,  G02F1/133603 ,  G09G3/34 ,  G09G3/3426 ,  G09G3/3607 ,  G09G3/3611 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2330/021 ,  G09G2360/16

Abstract: A backlight control method, a backlight module and a display apparatus are disclosed. The backlight control method comprises: dividing a backlight into N blocks; determining whether each of the N blocks satisfies a high current driving start-up condition or not according to a pixel signal in each input frame of image signal and determining blocks which satisfy the high current driving start-up condition as candidate blocks; setting blocks among the candidate blocks which are determined to be driven by high current as selected blocks in a case that power consumption of each frame of picture does not exceed total backlight power consumption without dynamic backlight control; and calculating backlight driving pulse width modulation duty ratios of the selected blocks according to a correspondence between brightness and pulse width modulation duty ratios, and transmitting the calculated backlight driving pulse width modulation duty ratios to a backlight driving circuit.

公开(公告)号：US20180122290A1

公开(公告)日：2018-05-03

申请号：US15678076

申请日：2017-08-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chul Gyu Jung

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2340/16

Abstract: The present disclosure provides a source driving circuit, a source driving chip and a display apparatus. The source driving circuit comprises a first conversion circuit, a second conversion circuit, a comparison circuit, a switch control circuit and an output circuit. The first conversion circuit receives a data signal, and converts it into a first analog signal. The comparison circuit compares a current frame of the data signal with a previous frame, and outputs the pre-charging voltage signal. The second conversion circuit converts the pre-charging voltage signal into a second analog signal. The switch control circuit outputs the second analog signal at a rising edge of the control signal and outputs the first analog signal at a falling edge. The output circuit outputs the received first and second analog signals to a corresponding data line of a display panel.

公开(公告)号：US10249250B2

公开(公告)日：2019-04-02

申请号：US15528744

申请日：2016-08-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yifang Chu ,  Chul Gyu Jung ,  Shou Li

IPC: G09G3/34 ,  G02F1/1335 ,  G09G3/36

Abstract: A backlight control method, a backlight module and a display apparatus are disclosed. The backlight control method comprises: dividing a backlight into N blocks; determining whether each of the N blocks satisfies a high current driving start-up condition or not according to a pixel signal in each input frame of image signal and determining blocks which satisfy the high current driving start-up condition as candidate blocks; setting blocks among the candidate blocks which are determined to be driven by high current as selected blocks in a case that power consumption of each frame of picture does not exceed total backlight power consumption without dynamic backlight control; and calculating backlight driving pulse width modulation duty ratios of the selected blocks according to a correspondence between brightness and pulse width modulation duty ratios, and transmitting the calculated backlight driving pulse width modulation duty ratios to a backlight driving circuit.

公开(公告)号：US10299346B2

公开(公告)日：2019-05-21

申请号：US15223498

申请日：2016-07-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yankai Gao ,  Chul Gyu Jung ,  Cheng-Te Lai ,  Chengqi Zhou

IPC: H05B37/02

Abstract: A system for monitoring a back light module is provided. The system includes an obtaining unit configured to obtain an intensity of output light from the back light module, a detection unit configured to detect whether the intensity of the output light from the back light module is greater than a preset value, and a control unit configured to control the back light module to reduce the intensity of the output light in response to detecting that the intensity of the output light is greater than the preset value, such that the reduced intensity of the output light is equal to or greater than the preset value.

公开(公告)号：US10140937B2

公开(公告)日：2018-11-27

申请号：US15687415

申请日：2017-08-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chul Gyu Jung

IPC: G09G3/36

Abstract: The disclosure provides a display panel, a liquid crystal display and a driving method therefor. In the display panel, each of rows and columns of pixels includes primary color pixels and white pixels arranged alternately; primary color pixels and white pixels in each row are electrically connected with different gate lines; primary color pixels in each odd-numbered row have third color, primary color pixels in each even-numbered row are arranged to alternate the first and second colors, and in any two adjacent even-numbered rows, colors of two primary color pixels located in one same column are different from each other; or, primary color pixels in each even-numbered row have third color, primary color pixels in each odd-numbered row are arranged to alternate the first and second colors, and in any two adjacent odd-numbered rows, colors of two primary color pixels located in one same column are different from each other.

公开(公告)号：US20180114495A1

公开(公告)日：2018-04-26

申请号：US15687415

申请日：2017-08-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chul Gyu Jung

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G3/3648 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0828 ,  G09G2310/0235 ,  G09G2310/0281 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2340/0407

Abstract: The disclosure provides a display panel, a liquid crystal display and a driving method therefor. In the display panel, each of rows and columns of pixels includes primary color pixels and white pixels arranged alternately; primary color pixels and white pixels in each row are electrically connected with different gate lines; primary color pixels in each odd-numbered row have third color, primary color pixels in each even-numbered row are arranged to alternate the first and second colors, and in any two adjacent even-numbered rows, colors of two primary color pixels located in one same column are different from each other; or, primary color pixels in each even-numbered row have third color, primary color pixels in each odd-numbered row are arranged to alternate the first and second colors, and in any two adjacent odd-numbered rows, colors of two primary color pixels located in one same column are different from each other.