公开(公告)号：US20200035159A1

公开(公告)日：2020-01-30

申请号：US15779789

申请日：2017-12-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi-Cheng LIN ,  Guang YAN ,  Quanhu LI ,  Mingi CHU

IPC: G09G3/3258

Abstract: Embodiments of the present disclosure provide a driving method for a pixel circuit. The pixel circuit includes a light emitting device and a drive transistor. The method includes: compensating the drive transistor in a first compensation manner including an internal voltage compensation during an operation period of the light emitting device; and compensating the drive transistor in a second compensation manner including the internal voltage compensation and an external voltage compensation during a non-operation period of the light emitting device.

公开(公告)号：US20170213849A1

公开(公告)日：2017-07-27

申请号：US15108186

申请日：2015-11-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu LI

IPC: H01L27/12 ,  H01L29/786 ,  H01L29/66 ,  H01L27/02

CPC classification number: H01L27/124 ,  G02F1/136204 ,  G02F1/136286 ,  G02F2001/13629 ,  H01L21/768 ,  H01L27/0266 ,  H01L27/1288 ,  H01L27/32 ,  H01L29/66765 ,  H01L29/78618

Abstract: The present disclosure provides an array substrate, a method for manufacturing the same and a display device. The array substrate includes a plurality of signal lines and a connection line electrically connected to the plurality of signal lines. During the formation of each insulation layer on the connection line, a via-hole is formed at a position where the connection line is to be interrupted. In addition, the protection layer is provided to cover the portion of the connection line corresponding to the region where the via-hole is located, so as to protect the connection line. Upon the completion of the insulation layers, the connection line may be interrupted through the via-holes, so as to interrupt electrical connection among the signal lines.

公开(公告)号：US20170110055A1

公开(公告)日：2017-04-20

申请号：US15122390

申请日：2015-07-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongqian LI ,  Longyan WANG ,  Quanhu LI ,  Jingwen YIN ,  Baoxia ZHANG ,  Cuili GAI ,  Kun CAO ,  Zhongyuan WU

IPC: G09G3/3258 ,  H01L51/50 ,  G09G3/325 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2310/0216 ,  G09G2320/0204 ,  G09G2320/045 ,  H01L27/3265 ,  H01L27/3276 ,  H01L51/5012

Abstract: The present disclosure relates to a pixel circuit, a driving method thereof and related devices. The pixel circuit comprises: a reset compensation module, a data writing module, a storage module and a driving transistor. With the cooperation of each module, the pixel circuit can compensate shift of a threshold voltage for a driving transistor by storing the threshold voltage for the driving transistor in the storage module. Therefore, when the source of the driving transistor in the pixel circuit is connected with a light emitting device for driving it to emit light for display, the driving current of the driving transistor for driving the light emitting device to emit light will be only associated with the voltage of the data signal, but not the threshold voltage for the driving transistor. In this way, influence of the threshold voltage of the driving transistor on the light emitting device will be avoided.

公开(公告)号：US20200258958A1

公开(公告)日：2020-08-13

申请号：US16308537

申请日：2018-05-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Yi Cheng LIN ,  Pan XU ,  Baoxia ZHANG ,  Quanhu LI ,  Ling WANG

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: An electroluminescent display substrate and a manufacturing method thereof, a display panel and a display apparatus are disclosed. The electroluminescent display substrate includes: a base substrate including a display area and a peripheral area surrounding the display area, wherein at least one OLED device is in the display area; a pixel defining layer in the display area and the peripheral area; at least one groove in the pixel defining layer in the peripheral area; wherein the at least one OLED device has a first electrode, the first electrode is on a side of the pixel defining layer away from the base substrate and extends to cover the groove.

公开(公告)号：US20200258439A1

公开(公告)日：2020-08-13

申请号：US16649720

申请日：2019-05-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu LI

IPC: G09G3/20 ,  G11C19/28

Abstract: A shift register unit and a method for driving the same, a gate driver including the same, a display panel and a display device. The shift register unit includes an input terminal, a first voltage terminal, a second voltage terminal, a first clock signal terminal, a second clock signal terminal, an adjustment terminal, an output terminal, a transfer terminal, an input circuit, a first control circuit, and an output circuit. The shift register unit avoids unstableness of the output signal caused by abnormal leakage of charges during the normal output by providing an adjustment signal, and separates the output signal from the transfer signal by means of the output terminal and the transfer terminal, which can reduce the sizes of transistors connected to the output terminal and the transfer terminal, thereby saving the layout area of the shift register unit and decreasing the power consumption thereof at the same time.

公开(公告)号：US20200234647A1

公开(公告)日：2020-07-23

申请号：US16839580

申请日：2020-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi Cheng LIN ,  Quanhu LI ,  Cuili GAI ,  Yu WANG ,  Mingi CHU ,  Chien Pang HUANG

IPC: G09G3/3258 ,  G09G3/3275 ,  G09G3/3266

Abstract: A display panel, a display device, and a compensating method are disclosed. The display panel includes: a plurality of sub-pixels arranged in rows and columns, a plurality of data lines connected to the plurality of sub-pixels, and a plurality of sensing driving lines connected to the plurality of sub-pixels, each of plurality of the sub-pixels includes a pixel circuit; the plurality of sub-pixels constitute a plurality of pixel units, the plurality of pixel units are arranged in a plurality of rows and a plurality of columns, and each of the plurality of pixel units includes four sub-pixels; pixel circuits of the four sub-pixels are connected to a same data line of the plurality of data lines; and the pixel circuits of the four sub-pixels are connected to four sensing driving lines of the plurality of sensing driving lines in a one-to-one correspondence manner.

公开(公告)号：US20190051243A1

公开(公告)日：2019-02-14

申请号：US15570928

申请日：2017-05-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu LI ,  Yongqian LI ,  Pan XU ,  Yu WANG ,  Song MENG ,  Fei YANG ,  Baoxia ZHANG ,  Cuili GAI ,  Ling WANG ,  Yicheng LIN ,  Kun CAO ,  Longyan WANG ,  Yue WU

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/3275 ,  H01L27/32

Abstract: A pixel driving circuit, a pixel driving method, an array substrate, a display device, and a display panel are disclosed. The pixel driving circuit includes a switching subcircuit, a plurality of clock signal lines, a data writing subcircuit and a driving subcircuit.

公开(公告)号：US20190035334A1

公开(公告)日：2019-01-31

申请号：US15781937

申请日：2017-12-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi-Cheng LIN ,  Quanhu LI ,  Cuili GAI ,  Yu WANG ,  Mingi CHU ,  Chien Pang HUANG

IPC: G09G3/3258 ,  G09G3/3275 ,  G09G3/3266

Abstract: A display panel, a display device and a compensating method are disclosed. The display panel includes: a plurality of sub-pixels arranged in rows and columns, each of the sub-pixels includes a pixel circuit; a plurality of sensing driving lines respectively connected with pixel circuits of the plurality of sub-pixels; and a sensing driver connected with the plurality of sensing driving lines. The pixel circuit includes a light emitting element, the sensing driver is configured to sense electrical parameters of light emitting elements of the pixel circuits of the plurality of sub-pixels through the plurality of sensing driving lines, and the sensing driver is configured to generate compensation signals according to the electrical parameters, and transmit the compensation signals to the pixel circuits of the plurality of sub-pixels through the plurality of sensing driving lines.

公开(公告)号：US20170039950A1

公开(公告)日：2017-02-09

申请号：US15135911

申请日：2016-04-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu LI ,  Zhongyuan WU ,  Kun CAO ,  Baoxia ZHANG

IPC: G09G3/3258 ,  G11C19/28

CPC classification number: G11C19/28 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286

Abstract: A shift register unit having a pulse width modulation module is provided. The pulse width modulation module includes a first input submodule, a first pull-down submodule, a second input submodule, a second pull-down submodule, a third input submodule, and a third pull-down submodule.

Abstract translation: 提供具有脉冲宽度调制模块的移位寄存器单元。 脉宽调制模块包括第一输入子模块，第一下拉子模块，第二输入子模块，第二下拉子模块，第三输入子模块和第三下拉子模块。

公开(公告)号：US20210210013A1

公开(公告)日：2021-07-08

申请号：US16078840

申请日：2018-02-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi Cheng LIN ,  Pan XU ,  Baoxia ZHANG ,  Quanhu LI ,  Ling WANG ,  Cuili GAI

IPC: G09G3/3233

Abstract: A pixel circuit and a driving method, a display panel and a display device are provided. The pixel circuit includes a data writing circuit, a compensation control circuit, a storage circuit, a light-emitting control circuit, and a drive circuit. The current output by the drive circuit in the pixel circuit of the present disclosure is only related to the data voltage of the data signal terminal and the reference voltage, and is independent of the threshold voltage of the drive circuit and the voltage of the second power terminal.