公开(公告)号：US20210201840A1

公开(公告)日：2021-07-01

申请号：US16084027

申请日：2018-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Liugang Zhou ,  Haoliang Zheng ,  Yaoqiu Jing ,  Mingfu Han ,  Seungwoo Han

IPC: G09G3/36

Abstract: The present disclosure is related to a driving circuit of a display panel. The driving circuit may include a turn-on voltage adjusting circuit. The turn-on voltage adjusting circuit may include a control subcircuit and a switching and voltage division subcircuit. The switching and voltage division subcircuit may include a switching subcircuit and a basic voltage division subcircuit. The switching subcircuit may be configured to perform voltage division of a signal outputted by the output terminal of the control subcircuit to form a voltage division feedback signal of the corresponding resolution under control of the control signal and output the voltage division feedback signal to the voltage division feedback node.

公开(公告)号：US10984695B2

公开(公告)日：2021-04-20

申请号：US16543125

申请日：2019-08-16

Applicant: Hefei BOE Display Technology Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yulong Xiong ,  Liugang Zhou ,  Tao Li ,  Yizhan Han ,  Jianwei Sun ,  Liu He

IPC: G09G3/20

Abstract: A display driving device is disclosed. The display driving device includes: a data signal end for providing a data signal, a source line, and a switching circuit. The source line can transmit the data signal to a first pixel circuit and a second pixel circuit. Along a direction of the source line, a distance between the second pixel circuit and the data signal end is larger than a distance between the first pixel circuit and the data signal end. The switching circuit is between the data signal end and the source line, and can be turned on in response to a first control signal, and can be turned on in response to a second control signal. A turned-on time period of the switching circuit in response to the second control signal is longer than a turned-on time period of the switching circuit in response to the first control signal.

公开(公告)号：US20210097950A1

公开(公告)日：2021-04-01

申请号：US16994891

申请日：2020-08-17

Applicant: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD. ,  BOE Technology Group Co., Ltd.

Inventor： Ke Dai ,  Yunyun Liang ,  Liugang Zhou ,  Zhenlin Qu ,  Liu He ,  Qing Li ,  Jun Wang ,  Yu Quan ,  Xiaofeng Yin ,  Liwei Zhou ,  Lin Zhang ,  Tao Li ,  Yulong Xiong

IPC: G09G3/36 ,  G09G3/34

Abstract: The present disclosure provides a driving circuit and driving method for a liquid crystal display panel, and a display device. The driving circuit includes: a signal collector, configured to collect a backlight control signal; and a timing control chip, configured to determine whether a BLU is in the bright state time period or in the dark state time period, and retrieve a first gate control signal from a memory chip and output the first gate control signal to a gate driving circuit, when determining that the BLU is in the bright state time period, or retrieve a second gate control signal from the memory chip and output the second gate control signal to the gate driving circuit, when determining that the BLU is in the dark state time period.

公开(公告)号：US10902803B2

公开(公告)日：2021-01-26

申请号：US16479764

申请日：2018-11-23

Applicant: HEFEI BOE DISPLAY TECHNOLOGY CO. Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Yizhan Han ,  Shou Li ,  Liugang Zhou ,  Tao Li ,  Yulong Xiong ,  Jianwei Sun

IPC: G09G3/36

Abstract: The disclosure discloses a display panel, a voltage adjustment method thereof, and a display device, and the display panel includes: at least two reference sub-pixels; a voltage compensation element coupled respectively with respective reference sub-pixels; and a power management element coupled with the voltage compensation element, wherein the voltage compensation element is configured to acquire valid values of pixel voltage of the respective reference sub-pixels when the at least two reference sub-pixels receive the same data voltage, and to generate a compensation signal of gate off voltage for the purpose of making the acquired valid values of the pixel voltage of the respective reference sub-pixels uniform; and the power management element is configured to adjust a voltage value of the gate off voltage according to the compensation signal of the gate off voltage.

公开(公告)号：US10768455B2

公开(公告)日：2020-09-08

申请号：US15743255

申请日：2017-07-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.

Inventor： Luqiang Guo ,  Liugang Zhou ,  Shou Li ,  Jianming Wang ,  Shuhuan Yu ,  Chenxi Liu ,  Jian Zhang

IPC: G02F1/13 ,  G02F1/13363 ,  G09G3/36

Abstract: A data compensation method and apparatus for a liquid crystal display screen are described herein. Said method comprises determining a timing length ΔT′ from the last turn-off of the liquid crystal display screen upon turn-on of the liquid crystal display screen, and determining a mura data compensation table am called at the time of the last turn-off; determining a mura data compensation table to be called at the time of the present turn-on according to a pre-set time length T needed for stabilization of mura, mura data compensation tables corresponding to pre-set different time periods, said timing length ΔT′, and said mura data compensation table am; performing data compensation starting from the determined mura data compensation table to be called at the time of the present turn-on. By using said method for data compensation, an appropriate initial data compensation table can be determined to obtain a better compensation effect.