公开(公告)号：US10127862B2

公开(公告)日：2018-11-13

申请号：US15531377

申请日：2016-06-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3266 ,  G09G3/36 ,  G11C19/28

Abstract: The present application discloses a shift register, a gate drive circuit and a display panel. In the shift register, the first node control sub-circuit provides a signal of the input signal terminal to the first node, and provides a signal of the first reference signal terminal to the first node; the second node control sub-circuit provides a signal of the second reference signal terminal to the second node, and provides a signal of the third clock signal terminal to the second node; the first output sub-circuit provides a signal of the second clock signal terminal to the output terminal for stabilizing a voltage difference between the first node and the output terminal when the first node is in a floating state; and the second output sub-circuit provides the signal of the first reference signal terminal to the output terminal.

公开(公告)号：US10032415B2

公开(公告)日：2018-07-24

申请号：US15104333

申请日：2016-01-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3258 ,  G09G3/3291 ,  G02F1/1362

Abstract: The present invention provides a pixel circuit and a driving method thereof and a display device. The pixel circuit comprises a driving transistor, a storage capacitor, an organic light emitting device, a reset unit, a data writing unit and a voltage output unit. The reset unit is connected to a reset control signal line, an initialization signal line, the data writing unit, two ends of the storage capacitor, the voltage output unit, and a first electrode and a control electrode of the driving transistor. The control electrode of the driving transistor is connected to the second end of the storage capacitor, the first electrode thereof is connected to the voltage output unit, the second electrode thereof is connected to the organic light emitting device. The data writing unit is connected to a gate line, a data line and the first end of the storage capacitor.

公开(公告)号：US20180202861A1

公开(公告)日：2018-07-19

申请号：US15819392

申请日：2017-11-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G01J1/44 ,  G01T1/24

CPC classification number: G01J1/44 ,  G01J2001/4473 ,  G01T1/24

Abstract: This disclosure relates to a Metal-Semiconductor-Metal (MSM) photoelectric detection device, a method of driving the MSM photoelectric detection device, and an X-Ray detector. The device comprises: a plurality of detection units each including: at least one first MSM structure, at least one second MSM structure, a first control unit, a second control unit, a third control unit, a threshold comparison unit, and an energy storage unit, wherein the first control unit is used for controlling the output/reset signal terminal to be connected to or disconnected from the first node; the second control unit is used for controlling the first node to be connected to or disconnected from the second MSM structure; the threshold comparison unit is used for outputting an ON control signal or an OFF control signal; the third control signal is used for connecting or disconnecting the first node to or from the second MSM structure under the control of the control signal outputted by the threshold comparison unit; the energy storage unit is used for storing charges. This disclosure is used for manufacturing the MSM photoelectric detection device.

公开(公告)号：US10019923B2

公开(公告)日：2018-07-10

申请号：US15021990

申请日：2015-09-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma ,  Tuo Sun

IPC: G11C19/00 ,  G09G3/20 ,  G11C19/28

CPC classification number: G09G3/20 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/067 ,  G09G2310/08 ,  G11C19/28

Abstract: A shift register and its driving method, a gate driving circuit, and a display apparatus, the shift register includes an input module (1), an output module (2) and an output control module (3); the output module (2) includes a first output unit (21) and a second output unit (22); and the output control module (3) comprises a first control unit (31) and a second control unit (32), the first control unit (31) controls the level of the first node (P), and the second control unit (32) controls the level of the second node (Q). The technical solutions of the present disclosure can diminish influence of the changing of the clock signal associated with the output module on the output signal, and improve the output effect of the shift register.

公开(公告)号：US09928774B2

公开(公告)日：2018-03-27

申请号：US14366115

申请日：2013-11-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/045

Abstract: The present disclosure relates to a technical field of display, and more particularly, to a pixel driving unit and a driving method thereof, as well as a pixel circuit comprising the pixel driving unit; the pixel driving unit comprises a driving sub-circuits and a control sub-circuit, wherein the control sub-circuit is connected to a data line, and the driving sub-circuits are connected to the control sub-circuit. In the process of driving the light emitting device, the pixel driving unit can effectively eliminate the nonuniformity due to the threshold voltage of the driving transistor and a phenomenon of image sticking due to the threshold voltage drift, avoid a problem of nonuniform brightness of the active matrix OLED due to the difference of the threshold voltages of the driving transistors thereof between the light emitting devices of different pixel driving units of the active matrix OLED, and improve the driving effect of the pixel driving unit with respect to the light emitting device, and further improve the quality of the active matrix OLED.

公开(公告)号：US09881550B2

公开(公告)日：2018-01-30

申请号：US15122375

申请日：2015-10-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3291 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/0626 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: Disclosed are a pixel Circuit, a driving method thereof, and a display apparatus. The pixel circuit comprises a driving transistor, a capacitor connected between the source and the gate of the driving transistor, a light-emitting element, a light-emitting control module, a data writing module and a compensating module. By cooperation among the various modules, the drift of the threshold voltage of the driving transistor can be compensated. Accordingly, the driving current which is provided by the driving transistor to drive the light-emitting element to emit light only relates to the voltage of the data signal and the reference signal, while does not relate to the threshold voltage of the driving transistor and the first reference voltage source, and thus the effect on the current flowing through the light-emitting element raised due to the threshold voltage and due to the IR drop can be avoided. The operating current which drives the light-emitting element to emit lights can remain uniform, thereby improving the uniformity of the image luminance of the whole display area of the display apparatus.

公开(公告)号：US09881543B2

公开(公告)日：2018-01-30

申请号：US15306598

申请日：2015-11-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G11C19/28 ,  G11C19/00 ,  G09G3/20 ,  G11C19/18 ,  H01L27/32

CPC classification number: G09G3/2092 ,  G09G3/3266 ,  G09G2300/0809 ,  G09G2310/0286 ,  G11C19/184 ,  G11C19/28 ,  H01L27/3244

Abstract: A shift register unit includes a first shift register module and a second shift register module. The first shift register module includes a first input module configured to input a start signal to a first control node, a second input module configured to input a first level to a second control node, a first output control module configured to input a second level to the first control node, a second output control module configured to input a first clock signal to the second control node, a first output module configured to input the first clock signal to a first output end, and a second output module configured to input the first level to the first output end. The second shift register module includes a second output end, third and fourth input modules, third and fourth output control modules, and third and fourth output modules.

公开(公告)号：US09786228B2

公开(公告)日：2017-10-10

申请号：US15321035

申请日：2016-05-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3266 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2310/0286 ,  G11C19/28 ,  G11C19/287

Abstract: A shift register unit and a control method thereof, a gate driving circuit, and a display device. The shift register unit includes a signal input module, connected to a signal input terminal, a first clock signal terminal and a control node; a pull-down module, connected to the control node, a first voltage terminal and a signal output terminal; a first pull-up control module, connected to the control node, the pull-up module and a second voltage terminal; a second pull-up control module, connected to the control node, the pull-up module, the first clock signal terminal, the first voltage terminal and a second clock signal terminal; and a pull-up module, connected to the signal output terminal and the second voltage terminal. The problem that it is difficult to realize a narrow display frame by the bonding process due to size increase of the driving circuit can be solved.

公开(公告)号：US09767916B2

公开(公告)日：2017-09-19

申请号：US14235592

申请日：2013-03-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G11C19/18 ,  G09G3/36 ,  G11C19/28

CPC classification number: G11C19/184 ,  G09G3/36 ,  G09G3/3688 ,  G09G2310/0286 ,  G09G2310/0289 ,  G11C19/28

Abstract: The present disclosure relates to a shift register and a display apparatus, wherein the shift register comprising an input module, a pull-down module, an inversion module and a first pull-up module; wherein, the input module supplies an input signal voltage to a pull-down node in response to a first clock signal, wherein the pull-down node is an output node of the input module; the pull-down module stores the input signal voltage and supplies a second clock signal to an output terminal in response to the pull-down node; the inversion module supplies a positive power supply voltage or a negative power supply voltage to a first pull-up node in response to the pull-down node; and the first pull-up module supplies the positive power supply voltage to the output terminal in response to the first pull-up node. Some or all the floating nodes in the shift register are not floated any more by improvement; as an alternative, the sources/drains of the TFTs subjected to the effects of the floating nodes are controlled so that the output stability of the shift register is improved.

公开(公告)号：US20170229070A1

公开(公告)日：2017-08-10

申请号：US15514821

申请日：2016-01-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3291 ,  G09G3/3266 ,  H01L51/52 ,  G09G3/3258

CPC classification number: G09G3/3291 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  H01L51/5203 ,  H01L2251/50

Abstract: The embodiments of the present disclosure relate to display technology and provide a pixel driving circuit and an associated driving method, a display panel and a display apparatus, capable of avoiding influence of a drifting threshold voltage of a driving transistor on a driving current of an active light emitting device. The pixel driving circuit comprises a compensating unit, a data writing unit, a driving unit, a first energy storage unit, a second energy storage unit and a display unit. The embodiments of the present disclosure are applicable to display manufacture.