公开(公告)号：US20170365204A1

公开(公告)日：2017-12-21

申请号：US15529731

申请日：2016-11-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hyunsic CHOI ,  Seungwoo Han

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G3/3677 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/043 ,  G11C19/28

Abstract: The present application discloses an N-th shift register unit circuit including at least a gate-drive signal output sub-circuit, a pull-up control sub-circuit, and a pull-down control sub-circuit respectively connected between a pull-up node and a pull-down node and provided with a p-th clock signal in addition to an n-th clock signal. A driving method includes controlling the pull-down node at turn-off voltage level when the p-th clock signal is at turn-on voltage level during which the n-th clock signal is correspondingly rising to turn-on voltage level from turn-off voltage level.

公开(公告)号：US09805683B2

公开(公告)日：2017-10-31

申请号：US14906475

申请日：2015-08-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing Yao ,  Seungwoo Han ,  Yuanbo Zhang

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3677 ,  G09G3/20 ,  G09G3/3696 ,  G09G2300/0809 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2330/021

Abstract: The present invention discloses a Gate-driver-On-Array (GOA) circuit and the driving method thereof and a display device. The GOA circuit comprises a driving module, a low-resolution module and at least two high-resolution modules, the driving module being connected with the low-resolution module and the at least two high-resolution modules respectively; wherein, the driving module is used to output control signal to the low-resolution module and the high-resolution modules; the low-resolution module is used to output a low-resolution signal to at least two rows of pixels under the control of the control signal during low-resolution display; and each high-resolution module is used to output a high-resolution signal to corresponding one row of pixels under the control of the control signal during high-resolution display. The GOA circuit of the present invention may be used to drive multiple rows of pixels and implement the switching between low resolution display and high resolution display.

公开(公告)号：US20170010731A1

公开(公告)日：2017-01-12

申请号：US14435739

申请日：2014-07-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuanbo Zhang ,  Jiayang Zhao ,  Seungwoo Han ,  Xiangxiang Zou

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36

CPC classification number: G06F3/0416 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04104 ,  G09G3/20 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/065 ,  G11C19/28

Abstract: The present invention provides a gate driving circuit and a driving method thereof, a display device, which relates to the field of display technology. The gate driving circuit may comprise a plurality of mutually cascaded shift register units and a pre-charging unit, the gate row drive scanning and touch control scanning of the plurality of mutually cascaded shift register units are performed alternately. By additionally arranging a pre-charging unit connected with the corresponding first stage of shift register unit when the gate row drive scanning is performed again after the touch control scanning is accomplished, the first stage of shift register unit can be pre-charged during the touch control scanning. In this way, the electric leakage phenomenon of the pull-up control node (PU point) of the corresponding first stage of shift register unit when the gate row drive scanning is performed again after the touch control scanning is accomplished due to a relatively long touch control scanning time interval between outputs of two rows of shift register units is avoided, thereby avoiding the defect of insufficient charging rate of row of pixels while ensuring touch control scanning of high report rate.

Abstract translation: 本发明提供一种与显示技术领域相关的门驱动电路及其驱动方法，显示装置。 栅极驱动电路可以包括多个相互级联的移位寄存器单元和预充电单元，交替执行多个相互级联的移位寄存器单元的栅极行驱动扫描和触摸控制扫描。 通过在完成触摸控制扫描之后再次执行栅极行驱动扫描时，另外布置与相应的第一级移位寄存器单元连接的预充电单元，可以在触摸期间预充电第一级移位寄存器单元 控制扫描。 以这种方式，当触摸控制扫描完成后，由于相对较长的触摸而完成了栅极行驱动扫描时，对应的第一级移位寄存器单元的上拉控制节点（PU点）的漏电现象 避免了两排移位寄存器单元的输出之间的控制扫描时间间隔，从而避免了像素行的充电率不足的缺陷，同时确保了高报告率的触摸控制扫描。

公开(公告)号：US12266301B2

公开(公告)日：2025-04-01

申请号：US17772029

申请日：2021-06-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Li Xiao ,  Dongni Liu ,  Liang Chen ,  Hao Chen ,  Jiao Zhao ,  Minghua Xuan

IPC: G09G3/3233 ,  G09G3/20

Abstract: A pixel circuit includes a first driving circuit, a first control circuit, a second driving circuit and a second control circuit. The first driving circuit is configured to write a first data signal into a first node in response to a scanning signal. The first control circuit is configured to transmit a first voltage signal to the first driving circuit, and transmit a first driving signal generated by the first driving circuit according to a voltage of the first node and the first voltage signal in response to an enable signal. The second driving circuit is configured to write a second data signal into a second node in response to the scanning signal. The second control circuit is configured to transmit a second driving signal generated by the second driving circuit according to a voltage of the second node and the first voltage signal in response to a control signal.

公开(公告)号：US11996035B2

公开(公告)日：2024-05-28

申请号：US17639790

申请日：2021-03-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo Han ,  Li Xiao ,  Haoliang Zheng ,  Dongni Liu ,  Jiao Zhao ,  Liang Chen ,  Hao Chen ,  Minghua Xuan

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/061

Abstract: Provided is a pixel circuit. The pixel circuit includes a reset circuit, a data write circuit, a light-emission control circuit, and a drive circuit; wherein the reset circuit is configured to transmit a reset power signal supplied by the reset power terminal to the first node in response to a reset control signal; the data write circuit is configured to transmit a data signal supplied by the data signal terminal to the first node in response to a gate drive signal; the light-emission control circuit is configured to control conduction/non-conduction between the cathode of the light-emitting element and the second node, and control conduction/non-conduction between the third node and the pull-down power terminal, in response to a light-emission control signal; and the drive circuit is configured to control conduction/non-conduction between the second node and the third node in response to a potential of the first node.

公开(公告)号：US11568797B2

公开(公告)日：2023-01-31

申请号：US17408967

申请日：2021-08-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Minghua Xuan ,  Haoliang Zheng ,  Li Xiao ,  Seungwoo Han ,  Liang Chen ,  Hao Chen ,  Jiao Zhao

IPC: G09G3/32

Abstract: A light-emitting driving circuit includes a driving sub-circuit, a control sub-circuit, a data writing sub-circuit and a compensation sub-circuit. The control sub-circuit is configured to initialize voltages of a first node and a control terminal of the driving sub-circuit in response to a second scan signal. The data writing sub-circuit is configured to write a data signal into a first terminal of the driving sub-circuit in response to a first scan signal. The driving sub-circuit is configured to output, from a second terminal of the driving sub-circuit, the data signal and a compensation signal. The compensation sub-circuit is configured to transmit the data signal and the compensation signal to the first node in response to the first scan signal, and adjust the voltage of the control terminal according to the data signal, the compensation signal, the initialized voltages of the first node and the control terminal.

公开(公告)号：US11538404B2

公开(公告)日：2022-12-27

申请号：US17476798

申请日：2021-09-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Li Xiao ,  Minghua Xuan

IPC: G09G3/32

Abstract: The present disclosure provides a pixel driving structure and a display panel. The pixel driving structure includes a pulse width modulation driving circuit, a pulse amplitude modulation driving circuit, and a buffer circuit. The pulse width modulation driving circuit is configured to control a pulse width of a driving current supplied to the light emitting device to be driven according to a pulse width modulation data voltage; the pulse amplitude modulation driving circuit is configured to control an amplitude of the driving current supplied to the light emitting device to be driven according to a pulse amplitude modulation data voltage; and the buffer circuit is electrically coupled between the pulse width modulation driving circuit and the pulse amplitude modulation driving circuit and is configured to adjust a rate at which the pulse width modulation driving circuit applies a pulse width modulation voltage to the pulse amplitude modulation driving circuit.

公开(公告)号：US20210223871A1

公开(公告)日：2021-07-22

申请号：US16301843

申请日：2018-04-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Seungwoo Han

IPC: G06F3/03 ,  G01B7/16

Abstract: The present disclosure is related to a flexible display panel. The flexible display panel may include a display substrate, a plurality of pixel units arranged in an array on the display substrate, and at least a strain sensor on the display substrate. The strain sensor may be arranged corresponding to a region comprising at least one of the plurality of pixel units. The strain sensor may be configured to detect deformation in the region comprising at least one of the plurality of pixel units and to generate a detection signal.

公开(公告)号：US10403228B2

公开(公告)日：2019-09-03

申请号：US14909661

申请日：2015-07-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing Yao ,  Yuanbo Zhang ,  Seungwoo Han

IPC: G11C19/00 ,  G09G5/00 ,  G09G3/30 ,  G11C19/28 ,  G09G3/20 ,  G09G3/36

Abstract: A shift register unit includes: a discharging TFT, a source electrode and a drain electrode of which are connected to a first low level signal input end and a pull-up node respectively; and a first discharging control unit connected to a gate electrode of the discharging TFT and configured to output a first control signal to the gate electrode of the discharging TFT between a first and a second time points, so as to enable the discharging TFT to be in an on state and output a first low level signal to the pull-up node, thereby to discharge the pull-up node. The first time point is a time point when the processing of a first frame by the shift register is ended, and the second time point is a time point when the processing of a second frame adjacent to the first frame by the shift register is started.

公开(公告)号：US20190221178A1

公开(公告)日：2019-07-18

申请号：US15574867

申请日：2017-05-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Guangliang Shang

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G02F1/13624 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36 ,  G09G2300/0814 ,  G09G2300/0823 ,  G09G2310/061 ,  G09G2320/045 ,  H01L27/1225

Abstract: A pixel driving circuit for a display apparatus. The pixel driving circuit may include a first gate line, a second gate line, a data line, a first thin-film transistor, and a second thin-film transistor. A gate of the first thin-film transistor may be coupled to the first gate line. A source of the first thin-film transistor may be coupled to the data line. A drain of the first thin-film transistor may be coupled to a source of the second thin-film transistor. A gate of the second thin-film transistor may be coupled to the second gate line. A drain of the second thin-film transistor may be coupled to a pixel electrode.