公开(公告)号：US10002558B2

公开(公告)日：2018-06-19

申请号：US15232095

申请日：2016-08-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhanjie Ma

IPC: G09G3/3266 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/36 ,  G11C19/28

CPC classification number: G09G3/2092 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3648 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/28 ,  G11C19/287

Abstract: Provided are a shift register unit and a driving method thereof, a scan driving circuit, a display device, wherein the shift register unit comprises an input module configured to output a voltage at the signal input terminal to the first node, an energy storage module configured to store the voltage at the first node or to charge the first node, a first pull-up control module configured to output a voltage at the first voltage terminal to the pull-up control node, a second pull-up control module configured to output a voltage at the second voltage terminal to the pull-up control node, a pull-down control module configured to output a voltage at the first node to the pull-down control node. The pulse width of the signal of each stage of output terminal of the GOA circuit can be adjusted.

公开(公告)号：US09997105B2

公开(公告)日：2018-06-12

申请号：US14917762

申请日：2015-08-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tuo Sun ,  Zhanjie Ma

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2310/0251 ,  G09G2320/045

Abstract: An OLED pixel driving circuit, a driving method, and an OLED display apparatus are provided. The OLED pixel driving circuit comprises a reset module (1), a first capacitor (C1), a first transistor (T1), a charging control module (2), a driving transistor (M1) and a light-emitting control module (3); the reset module (1) is connected to two terminals of the first capacitor (C1) and configured to make the two terminals of the first capacitor (C1) have an initial voltage; a first electrode of the first transistor (T1) is connected to the charging control module (2), a second electrode thereof is connected to a first terminal of the first capacitor (C1), and a control electrode thereof is connected to a second terminal of the first capacitor (C1); the charging control module (2) is connected to the first transistor (T1) and a data line (Data); a control electrode of the driving transistor (M1) is connected to the second terminal of the first capacitor (C1), a first electrode thereof is connected to a high voltage terminal (VDD), and a second electrode thereof is connected to the light-emitting control module (3); and the light-emitting control module (3) is connected to the light-emitting device (4), wherein a difference value between a threshold voltage of the first transistor (T1) and a threshold voltage of the driving transistor (M1) is smaller than a preset value. The OLED pixel driving circuit can make the luminance of the OLED pixel within one frame picture maintain stable.

公开(公告)号：US09911503B2

公开(公告)日：2018-03-06

申请号：US14555965

申请日：2014-11-28

Applicant: Boe Technology Group Co., Ltd.

Inventor： Zhanjie Ma

IPC: G09G3/36 ,  G11C19/28 ,  G09G3/20

CPC classification number: G11C19/28 ,  G09G3/20 ,  G09G3/3677 ,  G09G2310/0267 ,  G09G2310/08

Abstract: The present application provides a shift register unit as well as a gate drive circuit and a display device using it. The shift register unit comprises an input module, an NAND gate module, an inverter module, a pull-up module and a pull-down module. The input module receives an input signal and a first clock signal, and transfers the input signal to a first input end of the NAND gate module and the pull-down module under the control of the first clock signal. A second input end of the NAND gate module receives a second clock signal input, and an output end thereof connects the inverter module. An output end of the inverter module connects the pull-up module. The pull-up module pulls up the output signal to a high level based on the output of the inverter module. The pull-down module pulls down the output signal to a low level under the control of the received input signal and the second clock signal. By arranging the inverter module, it can be ensured that no floating point exists at the gate of the output transistor so that it is not affected by leak point, thereby maintaining stable signal output and improving stable output ability of the shift register.

公开(公告)号：US20180047341A1

公开(公告)日：2018-02-15

申请号：US15531377

申请日：2016-06-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3266 ,  G09G3/20 ,  G11C19/28 ,  G09G5/00

CPC classification number: G09G3/3266 ,  G09G3/36 ,  G09G3/3677 ,  G09G2310/0286 ,  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：US20170294161A1

公开(公告)日：2017-10-12

申请号：US15511748

申请日：2016-04-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tuo Sun ,  Zhanjie Ma

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2300/0871 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2330/021

Abstract: Embodiments of the present disclosure provide a drive circuit and a drive method thereof, a display substrate and a drive method thereof, and a display device. The drive circuit comprises a conversion unit provided with a first input terminal, a second input terminal, a third input terminal, a fourth input terminal, and an output terminal, wherein the fourth input terminal is connected to a direct current power source, and wherein the output terminal is connected to a pixel circuit. The first input terminal is configured to input a voltage signal, the second input terminal is configured to input a first drive signal, the third input terminal is configured to input a second drive signal, and the output terminal is configured to output a current signal. The conversion unit converts the voltage signal output from the source drive unit into the current signal and the pixel circuit is driven by the current signal.

公开(公告)号：US20170193916A1

公开(公告)日：2017-07-06

申请号：US15214401

申请日：2016-07-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanjie Ma

IPC: G09G3/3266 ,  G11C19/18

CPC classification number: G09G3/3266 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2310/0286 ,  G11C19/28 ,  G11C19/287

Abstract: According to the embodiments of the disclosure, a shift register and a method for driving the same, a gate driving circuit and a display apparatus may be provided. The shift register includes an input module, a node control module, a first output module and a second output module. The input module may control a potential at a first node via an input signal end and a first clock signal end, the node control module may configured to control the potential at a first node via a first control signal end and a DC signal end, the first output module may control the potential at a driving signal output end via a second control signal end and the DC signal end, and the second output module may maintain a voltage difference between the first node and the driving signal output end in a stable state when the first node is in a floating state and control the potential at the driving signal output end via the first node and the second clock signal end. By cooperating with each other, these four modules may achieve the outputs of scanning signals with a simpler structure and a fewer signal lines, so as to simplify the manufacturing process and reduce the production cost.

公开(公告)号：US09697770B2

公开(公告)日：2017-07-04

申请号：US14913277

申请日：2015-08-19

Applicant: Boe Technology Group Co., Ltd.

Inventor： Zhanjie Ma

IPC: G06F3/038 ,  G09G3/3233 ,  G09G3/32 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G3/32 ,  G09G3/3208 ,  G09G2300/0804 ,  G09G2300/0819 ,  G09G2320/045 ,  G09G2330/028

Abstract: A pixel circuit, an organic electroluminescent display panel and a display device. The pixel circuit comprises: a drive transistor, a drive control module, at least two split light emitting control modules and light emitting devices connected with output terminals of the split light emitting control modules in one-to-one correspondence respectively. Since the plurality of split light emitting control modules can split the driving total current signal outputted by the drive transistor based on the corresponding split control signal, the driving split current signal outputted to the corresponding light emitting device can be less than the driving total current signal. Thus, the driving current of the light emitting device under the same brightness can be reduced, thereby being capable of realizing adjustment of various gray scale display of the high current efficiency light emitting device.

公开(公告)号：US09666122B2

公开(公告)日：2017-05-30

申请号：US14418137

申请日：2014-05-21

Applicant: Boe Technology Group Co., Ltd.

Inventor： Zhanjie Ma

IPC: G06F3/041 ,  G09G3/3225 ,  G06F3/044 ,  G09G3/3233

CPC classification number: G09G3/3225 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0218 ,  G09G2310/08

Abstract: A method for driving an AMOLED-based touch display panel, comprising: when driving the AMOLED to display, dividing one cycle of driving sequence into a display stage and a touch-sense stage; in the display stage, applying a direct-current signal applied to all of power source signal lines; and in the touch-sense stage, classifying all of the power source signal lines into a first group of power source signal lines and a second group of power source signal lines, the first group of power source signal lines and the second group of power source signal lines being disposed on a substrate of the AMOLED-based touch display panel to be perpendicular to each other; and during the period of touch-sense, applying a pulse signal to the first group of power source signal lines, and determining the position of a touch point by detecting a variation of a signal on the second group of power source signal lines. The driving sequence is divided into the display stage and the touch-sense stage, and the touch sensing and positioning of touch point is accomplished by VDD signal lines, such that no any change is made to any process or profile of the pixel structure in the touch-sense stage, reducing the thickness and manufacturing cost of the display device.

公开(公告)号：US09570532B2

公开(公告)日：2017-02-14

申请号：US14104485

申请日：2013-12-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang Huangfu ,  Zhanjie Ma

IPC: H01L21/00 ,  H01L27/32 ,  G09G3/32

CPC classification number: H01L27/3279 ,  G09G3/3225 ,  G09G2300/0452 ,  G09G2300/08 ,  G09G2330/021 ,  H01L27/3204 ,  H01L27/3218 ,  H01L27/3244

Abstract: The embodiment of the present invention provides a pixel structure, pixel unit structure, display panel and display apparatus, which is used to increase the electrical-optical efficiency of the display apparatus. The pixel structure includes an active matrix driving circuit, also includes at least two light emitting devices connected in series which are connected to the active matrix driving circuit, the light emitting devices compose the light emitting device group, and the active matrix driving circuit drives the light emitting devices to emit light.

Abstract translation: 本发明的实施例提供一种用于提高显示装置的电光效率的像素结构，像素单元结构，显示面板和显示装置。 像素结构包括有源矩阵驱动电路，还包括连接到有源矩阵驱动电路的串联连接的至少两个发光器件，发光器件组成发光器件组，有源矩阵驱动电路驱动 发光装置发光。

公开(公告)号：US20160284269A1

公开(公告)日：2016-09-29

申请号：US14652343

申请日：2014-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang Sun ,  Ying Wang ,  Tuo Sun ,  Zhanjie Ma ,  Xinshe Yin ,  Lintao Zhang ,  Lujiang Huangfu

IPC: G09G3/3233 ,  G09G3/3258

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0626

Abstract: A pixel driving circuit, driving method thereof, an array substrate and display apparatus, the pixel driving circuit comprises: a data line for providing a data voltage; a gate line for providing a scanning voltage; a first power supply line for providing a first power supply voltage; a second power supply line for providing a second power supply voltage; a light emitting device connected to the second power supply line; a driving transistor connected to the first power supply line; a storage capacitor having a first terminal connected to a gate of the driving transistor and configured to transfer information including the data voltage to the gate of the driving transistor; a resetting unit configured to reset a voltage across the storage capacitor as a predetermined signal voltage; a data writing unit configured to write information including the data voltage into the second terminal of the storage capacitor; a compensating unit configured to write information including a threshold voltage of the driving transistor and information of the first power supply voltage into the first terminal of the storage capacitor; and a light emitting control unit configured to write the first power supply voltage into the second terminal of the storage capacitor and control the driving transistor to drive the light emitting device to emit light.

Abstract translation: 像素驱动电路，驱动方法，阵列基板和显示装置，像素驱动电路包括：数据线，用于提供数据电压; 用于提供扫描电压的栅极线; 用于提供第一电源电压的第一电源线; 用于提供第二电源电压的第二电源线; 连接到第二电源线的发光器件; 连接到所述第一电源线的驱动晶体管; 存储电容器，其具有连接到所述驱动晶体管的栅极的第一端子，并且被配置为将包括所述数据电压的信息传送到所述驱动晶体管的栅极; 复位单元，被配置为将存储电容器两端的电压复位为预定的信号电压; 数据写入单元，被配置为将包含数据电压的信息写入存储电容器的第二端子; 补偿单元，被配置为将包括驱动晶体管的阈值电压的信息和第一电源电压的信息写入到存储电容器的第一端子中; 以及发光控制单元，被配置为将第一电源电压写入到存储电容器的第二端子中，并且控制驱动晶体管驱动发光器件发光。