公开(公告)号：US20180315392A1

公开(公告)日：2018-11-01

申请号：US15565907

申请日：2017-05-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yu WANG ,  Fei YANG ,  Yue WU ,  Quanhu LI ,  Song MENG

IPC: G09G3/38 ,  G02F1/163

CPC classification number: G09G3/38 ,  G02F1/163 ,  G02F2001/1635 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2310/0275

Abstract: A pixel circuit is provided which includes a data writing module, a drive module, a control module and an electrochromic device. The data writing module provides a data signal to the control terminal of the drive module under the control of a first control signal. The drive module drives the electrochromic device for colour development or colour fading according to a power supply voltage signal under the control of the data signal. The control module controls the conduction between the drive module and the electrochromic device on the basis of a second control signal, and the control module controls the conduction so that the conduction is realized later than the change in the power supply voltage signal. The pixel circuit effectively removes interference of the power supply voltage signal, avoids display fluctuations caused by the change in the power supply voltage signal, and further improves the display effect.

公开(公告)号：US20180233498A1

公开(公告)日：2018-08-16

申请号：US15509714

申请日：2016-09-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Pan XU ,  Yongqian LI ,  Quanhu LI

IPC: H01L27/02 ,  G02F1/1362 ,  H01L29/788 ,  H01L27/12

CPC classification number: H01L27/0292 ,  G02F1/136204 ,  G02F1/136286 ,  G02F2201/121 ,  H01L27/0288 ,  H01L27/124 ,  H01L29/788

Abstract: The present disclosure provides a substrate, including: a first line; a second line; a thin-film transistor (TFT) between the first line and the second line, having a floating gate structure, a source electrode electrically connected to the first line, and a drain electrode electrically connected to the second line; and a first point-discharge structure between the floating gate structure of the TFT and the first line.

公开(公告)号：US20180197472A1

公开(公告)日：2018-07-12

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：US20180174660A1

公开(公告)日：2018-06-21

申请号：US15127770

申请日：2015-10-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu LI

IPC: G11C19/28 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/32 ,  G09G3/3225 ,  G09G2310/0286 ,  G11C19/28

Abstract: The present invention discloses a shift register unit and method for driving it, and a gate driving circuit. The shift register unit comprises an output module, an unset module and an unset control module; wherein a control terminal of the output module, an output terminal of the unset module are connected to a first node; an output terminal of the unset control module is connected to a control terminal of the unset module; the unset module is configured to be turned off under the control of a control signal accessed to a control terminal of the unset control module so as to prevent the unset module from unsetting the first node, such that the output module outputs a shift signal having multiple pulses during the period in which the unset module is turned off.

公开(公告)号：US20170110478A1

公开(公告)日：2017-04-20

申请号：US15222136

申请日：2016-07-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Quanhu LI

IPC: H01L27/12 ,  H01L27/02

CPC classification number: H01L27/124 ,  H01L27/0266 ,  H01L27/0292

Abstract: An array substrate, an electro-static discharge method thereof and a display device are disclosed. The array substrate includes: a plurality of data lines, a plurality of gate lines, a power signal line, a charge release signal line, a plurality of electro-static discharge units and at least one short circuit ring unit. The charge release signal line and the power signal line are disposed in parallel, two electro-static discharge units are disposed between them to form an electro-static discharge circuit, each gate line and/or each data line is connected with the charge release signal line by one electro-static discharge unit; the short circuit ring unit is connected between the charge release signal line and the power signal line.

公开(公告)号：US20160351128A1

公开(公告)日：2016-12-01

申请号：US15139635

申请日：2016-04-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu LI

IPC: G09G3/3258 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2320/0233 ,  G11C19/28

Abstract: The present invention provides a gate driving circuit and an OLED display device. The gate driving circuit comprises multiple stages of shift registers, each stage shift register is connected to an inverter; the shift register provides a first signal and a second signal for the inverter; the inverter receives the first signal and the second signal and generates a light emitting signal according to the first signal and the second signal and input the light emitting signal to the light emitting device; the inverter comprises at least two current amplification units and an external pull-down unit; each current amplification unit comprises a pull-up module, a pull-up hold module, an internal pull-down module and a driving transistor. According to the present invention, the number of transistors can be reduced, the aperture ratio of the display device is improved, and output with high voltage and large current can be provided.

Abstract translation: 本发明提供一种栅极驱动电路和OLED显示装置。 门驱动电路包括多级移位寄存器，每级移位寄存器连接到逆变器; 移位寄存器为逆变器提供第一信号和第二信号; 逆变器接收第一信号和第二信号，并根据第一信号和第二信号产生发光信号，并将发光信号输入到发光装置; 所述逆变器包括至少两个电流放大单元和外部下拉单元; 每个电流放大单元包括上拉模块，上拉保持模块，内部下拉模块和驱动晶体管。 根据本发明，可以减少晶体管的数量，提高显示装置的开口率，并且可以提供高电压和大电流的输出。