公开(公告)号：US09852685B2

公开(公告)日：2017-12-26

申请号：US14646179

申请日：2014-09-26

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Liye Duan ,  Zhongyuan Wu ,  Lirong Wang ,  Kun Cao

IPC分类号： G09G3/30 ,  G06F3/038 ,  G09G3/3233 ,  G09G3/3291

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0289 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2330/021

摘要： There are provided a pixel circuit and a driving method thereof, and a display apparatus. The pixel circuit comprises: a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1) and a light emitting device (L). A gate of the first transistor (T1) is connected to a first control signal terminal (S1), and a first electrode thereof is connected to a data signal terminal (DATA); a gate of the second transistor (T2) is connected to a second electrode of the first transistor (T1), a first electrode thereof is connected to a second electrode of the third transistor (T3), and a second electrode thereof is connected to a first terminal of the light emitting device (L); a gate of the third transistor (3) is connected to a second control signal terminal (S2), and a first electrode thereof is connected to a first power supply signal terminal (ELVDD); one terminal of the storage capacitor (C1) is connected to the gate of the second transistor (T2), and the other terminal thereof is connected to the second electrode of the second transistor (T2); one terminal of a parasitic capacitor (C2) formed by the light emitting device is connected to the first terminal of the light emitting device (L), and the other terminal thereof is connected to a second terminal of the light emitting device (L); and the second terminal of the light emitting device (L) is further connected to a second power supply signal terminal (ELVSS). The pixel circuit can compensate for the threshold voltage drift of TFT effectively and rise display effect.

公开(公告)号：US09837024B2

公开(公告)日：2017-12-05

申请号：US15101184

申请日：2015-09-24

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Lirong Wang ,  Liye Duan

IPC分类号： G09G3/3266 ,  G09G3/3225

CPC分类号： G09G3/3266 ,  G09G3/3225 ,  G09G2300/0408 ,  G09G2300/0819 ,  G09G2310/0267 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/08

摘要： A scan driving circuit and a driving method thereof, an array substrate, and a display apparatus are disclosed. The scan driving circuit comprises: a first shift register (11) connected to one group of clock signals (CLKA) having a first clock cycle, and configured to output a first scanning signal (GA) progressively; a second shift register (12) connected to another group of clock signals (CLKB) having a second clock cycle, and configured to output a second scanning signal (GB) progressively; and a logic arithmetic device (13) connected to a first clock signal (CLK1) having a third clock cycle, connected to the first shift register (11) and the second shift register (12), and configured to output compensation signals (SC) of multiple rows; the compensation signal (SC) of any row has a wave shape the same as the first clock signal (CLK1) when a second scanning signal (GB) of a present row is at a first level, and has a wave shape the same as a first scanning signal (GA) of the present row when the second scanning signal (GB) of the present row is at a second level; and the third clock cycle is smaller than the second clock cycle. The scan driving circuit can be implemented by adding an appropriate circuit structure on the basis of the conventional GOA circuit, without manufacturing a driving chip on the external circuit board, so that the manufacturing process can be simplified, the process cost of products can be reduced, and integration level of the OLED panel can be raised.

公开(公告)号：US09734760B2

公开(公告)日：2017-08-15

申请号：US14354779

申请日：2013-07-23

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Zhongyuan Wu ,  Liye Duan

IPC分类号： G06F3/038 ,  G09G3/325 ,  G09G3/3291 ,  G09G3/3233

CPC分类号： G09G3/325 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/045

摘要： A sensing circuit for external compensation, a sensing method thereof and a display apparatus, the sensing circuit for external compensation comprises a differential amplifier (9), a first capacitor (4), a second capacitor (8) and an output voltage controlling circuit (10) for the first capacitor; a negative input terminal of the differential amplifier (9) is connected with a display panel (1), a positive input terminal thereof is connected with a reference voltage, and an output terminal thereof is connected with an output terminal of the output voltage controlling circuit (10) for the first capacitor; the output voltage controlling circuit (10) for the first capacitor is used for enabling an output voltage of the first capacitor (4) in a subsequent current integral stage to vary based on the reference voltage. The sensing circuit for external compensation, the sensing method thereof and the display apparatus according to embodiments of the present disclosure can store by using the capacitor an offset voltage of the amplifier in an initial stage to eliminate the differences in the voltage outputs caused by the offsets of the amplifiers among different channels and enhance the accuracy of the voltage output.

公开(公告)号：US09620061B2

公开(公告)日：2017-04-11

申请号：US14415701

申请日：2014-04-25

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Kun Cao ,  Zhongyuan Wu ,  Liye Duan

IPC分类号： G09G3/32 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

CPC分类号： G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/043

摘要： The gate driver circuit is connected to a row of pixel units, each pixel unit includes a pixel driving module and a light-emitting device connected to each other, the pixel driving module including a driving transistor, a driving module and a compensating module, the compensating module being connected to a gate scanning signal, and the driving module being connected to a driving control signal and a driving voltage. The gate driver circuit includes a row pixel controlling unit configured to provide the gate scanning signal to the compensating module and provide the driving voltage to the driving module, so as to control the compensating module to compensate for a threshold voltage of the driving transistor; and a driving control unit configured to provide the driving control signal to the driving module so as to control the driving module to drive the light-emitting device.

公开(公告)号：US09536474B2

公开(公告)日：2017-01-03

申请号：US14408485

申请日：2014-05-30

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Lijun Ren ,  Liye Duan

IPC分类号： G09G3/32 ,  G09G3/20

CPC分类号： G09G3/3258 ,  G09G3/2003 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/043 ,  G09G2320/0666 ,  G09G2330/08

摘要： The present disclosure provides a pixel circuit, its driving method, an array substrate and a display device. The pixel circuit includes a plurality of pixels, each of which includes a blue sub-pixel and a driving module for driving the blue sub-pixel. The blue sub-pixel includes N blue OLEDs, and N is a positive integer greater than 1. The driving module is configured to drive the N blue OLEDs in a time division manner. According to the present disclosure, the blue sub-pixel is segmented into several portions, and merely a portion of the blue sub-pixel is displayed each time. As a result, it is able to prolong the service time of the blue sub-pixel, thereby to increase the service life of an AMOLED panel.

摘要翻译： 本公开提供一种像素电路，其驱动方法，阵列基板和显示装置。 像素电路包括多个像素，每个像素包括蓝色子像素和用于驱动蓝色子像素的驱动模块。 蓝色子像素包括N个蓝色OLED，N是大于1的正整数。驱动模块被配置为以时分方式驱动N个蓝色OLED。 根据本公开，蓝色子像素被分割成若干部分，并且每次只显示蓝色子像素的一部分。 结果，能够延长蓝色子像素的使用时间，从而延长AMOLED面板的使用寿命。

公开(公告)号：US20160372046A1

公开(公告)日：2016-12-22

申请号：US14770364

申请日：2015-01-30

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Lirong Wang ,  Liye Duan ,  Zhongyuan Wu

IPC分类号： G09G3/3266 ,  G11C19/28 ,  G09G3/3258

CPC分类号： G09G3/3266 ,  G09G3/3258 ,  G09G2300/0814 ,  G09G2310/0218 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2330/023 ,  G11C19/28

摘要： The present disclosure discloses a gate driver, a display apparatus and a gate driving method, to achieve a function of outputting a multi-pulse waveform by the gate driver. The gate driver according to the present disclosure comprises multiple groups of driving units, each group of driving units comprising N driving units each of which comprises a shift register and a logic circuit, wherein N is an integer larger than 1, and an output of a shift register is connected to a logic circuit in each driving unit. The shift registers multiplex multiple clock signals with different timings. Each of the shift registers outputs an output signal to a corresponding logic circuit. A part of a clock signal is selected by the logic circuit for output. In this way, a function of outputting a multi-pulse waveform by the gate driver is achieved, which prepares for a shift register having a function of threshold voltage compensation, to make a shift register capable of multi-row scanning become feasible on a display panel.

摘要翻译： 本公开公开了一种门驱动器，显示装置和栅极驱动方法，以实现由栅极驱动器输出多脉冲波形的功能。 根据本公开的栅极驱动器包括多组驱动单元，每组驱动单元包括N个驱动单元，每个驱动单元包括移位寄存器和逻辑电路，其中N是大于1的整数，并且输出 移位寄存器连接到每个驱动单元中的逻辑电路。 移位寄存器以不同的时序复用多个时钟信号。 每个移位寄存器将输出信号输出到相应的逻辑电路。 时钟信号的一部分由逻辑电路选择输出。 以这种方式，实现了由栅极驱动器输出多脉冲波形的功能，其为具有阈值电压补偿功能的移位寄存器做准备，以使能够进行多行扫描的移位寄存器在显示器上变得可行 面板。

公开(公告)号：US09514676B2

公开(公告)日：2016-12-06

申请号：US14426803

申请日：2014-04-29

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Zhongyuan Wu ,  Baojiang Zhang ,  Liye Duan

IPC分类号： G09G3/32

CPC分类号： G09G3/3225 ,  G09G3/3233 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/043 ,  G09G2320/045

摘要： Provided are a pixel circuit and driving method thereof and a display apparatus. The pixel circuit comprises a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1), a parasitic capacitor (C2) and a light emitting device (L). A first electrode of the first transistor (T1) is connected to a first power source signal terminal, and its second electrode is connected to a first electrode of the third transistor (T3); the gate of the second transistor (T2) is connected to a first control signal terminal (S1), its first electrode is connected to a data signal terminal (DATA), and its second electrode is connected to the gate of the first transistor (T1); the gate of the third transistor (T3) is connected to a second control signal terminal (S2), and its second electrode is connected to one terminal of the light emitting device (L); one terminal of the storage capacitor (C1) is connected to the gate of the first transistor (T1), and the other terminal of the storage capacitor is connected to one terminal of the light emitting device (L); one terminal of the parasitic capacitor (C2) is connected to one terminal of the light emitting device (L), and the other terminal of the parasitic capacitor (C2) is connected to the other terminal of the light emitting device (L); and the other terminal of the light emitting device (L) is also connected to a second power source signal terminal (ELVSS). The pixel circuit can effectively compensate for the threshold voltage shift of the TFTs and improve the display effect.

摘要翻译： 提供了像素电路及其驱动方法和显示装置。 像素电路包括第一晶体管（T1），第二晶体管（T2），第三晶体管（T3），存储电容器（C1），寄生电容器（C2）和发光器件（L）。 第一晶体管（T1）的第一电极连接到第一电源信号端子，并且其第二电极连接到第三晶体管（T3）的第一电极; 第二晶体管（T2）的栅极连接到第一控制信号端子（S1），其第一电极连接到数据信号端子（DATA），其第二电极连接到第一晶体管（T1）的栅极 ）; 第三晶体管（T3）的栅极连接到第二控制信号端子（S2），并且其第二电极连接到发光器件（L）的一个端子; 存储电容器（C1）的一个端子连接到第一晶体管（T1）的栅极，并且存储电容器的另一个端子连接到发光器件（L）的一个端子; 寄生电容器（C2）的一个端子连接到发光器件（L）的一个端子，而寄生电容器（C2）的另一个端子连接到发光器件（L）的另一个端子; 并且发光装置（L）的另一个端子也连接到第二电源信号端子（ELVSS）。 像素电路可以有效地补偿TFT的阈值电压偏移并提高显示效果。

公开(公告)号：US20160307510A1

公开(公告)日：2016-10-20

申请号：US14894707

申请日：2015-04-17

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Liye Duan ,  Lirong Wang

IPC分类号： G09G3/32

CPC分类号： G09G3/3258 ,  G09G3/32 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0804 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861

摘要： There are provided a pixel structure, a display panel and a display apparatus. The pixel structure comprises a pixel circuit (11), a switch circuit (12) and n organic light-emitting diodes (13) sharing the pixel circuit (11), where n is greater than or equal to 2. Respective organic light-emitting diodes (13) sharing the pixel circuit (11) are located in a same column of the display panel, and emit lights of a same color when emitting light. The switch circuit (12) is configured to control any two organic light-emitting diodes (13) sharing the pixel circuit (11) to emit light at different periods of time. The pixel circuit (11) is configured to drive of the respective organic light-emitting diodes sharing the pixel circuit (11) to emit light according to a received data signal. The pixel structure is used to solve the problem of the complexity of the back board.

摘要翻译： 提供了像素结构，显示面板和显示装置。 像素结构包括像素电路（11），开关电路（12）和共享像素电路（11）的n个有机发光二极管（13），其中n大于或等于2.相关的有机发光 共享像素电路（11）的二极管（13）位于显示面板的同一列中，并且在发光时发出相同颜色的光。 开关电路（12）被配置为控制共享像素电路（11）的任何两个有机发光二极管（13）在不同的时间段发光。 像素电路（11）被配置为驱动共享像素电路（11）的各个有机发光二极管，以根据接收的数据信号发光。 像素结构用于解决背板复杂度的问题。

公开(公告)号：US20160307503A1

公开(公告)日：2016-10-20

申请号：US14777831

申请日：2015-02-27

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Chen Song ,  Liye Duan

IPC分类号： G09G3/3233 ,  G09G3/20

CPC分类号： G09G3/3233 ,  G09G3/2007 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

摘要： An embodiment of the present disclosure provides an actively driven organic light-emitting display apparatus to eliminate a defect in which the current flowing through the lighting device in the actively driven organic light-emitting display apparatus is affected by the instable current caused by the instable threshold voltage of the drive transistor, so that the current flowing through the lighting device is accurate and make the brightness of the whole actively driven organic light-emitting display apparatus be even. The display apparatus comprises a light emitting device, a light emitting device drive unit, a first switch unit, a second switch unit, a current control unit and a resistor which constitute a feedback loop. An input terminal of the current control unit is input a data signal to control that the current of the light emitting device is only associated with the resistor, voltage of the input data signal and the supply voltage.

摘要翻译： 本公开的实施例提供一种主动驱动的有机发光显示装置，以消除流过有源驱动的有机发光显示装置中的照明装置的电流受到由不稳定阈值引起的不稳定电流的影响的缺陷 驱动晶体管的电压，使得流过照明装置的电流是准确的，并使整个有源驱动的有机发光显示装置的亮度均匀。 显示装置包括构成反馈回路的发光装置，发光装置驱动单元，第一开关单元，第二开关单元，电流控制单元和电阻器。 电流控制单元的输入端子输入数据信号，以控制发光器件的电流仅与电阻器，输入数据信号的电压和电源电压相关联。

公开(公告)号：US09449544B2

公开(公告)日：2016-09-20

申请号：US14349860

申请日：2013-08-13

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Liye Duan ,  Lirong Wang ,  Zhongyuan Wu

IPC分类号： G09G5/10 ,  G09G3/20 ,  G09G3/32

CPC分类号： G09G3/2007 ,  G09G3/3241 ,  G09G2300/0819 ,  G09G2310/0251 ,  G09G2320/0271

摘要： An AMOLED pixel circuit and driving method are disclosed. The AMOLED pixel circuit comprises a first transistor (T1), a second transistor (T2), a third transistor (T3), a fourth transistor (T4), a fifth transistor (T5), a sixth transistor (T6), a seventh transistor (T7), an eighth transistor (T8), a first capacitor (C1), a second capacitor (C2), a current source and a light-emitting device (OLED). The AMOLED pixel circuit can perform a rapid charging in a low gray scale state; different currents may be provided according to information on a high or low gray scale, and thus the AMOLED pixel circuit may be applied widely; an output current during a light-emitting period is a normal operational current of the light-emitting device; therefore not only a charging process is expedited, but also a normal operation of the light-emitting device is ensured.

摘要翻译： 公开了一种AMOLED像素电路和驱动方法。 AMOLED像素电路包括第一晶体管（T1），第二晶体管（T2），第三晶体管（T3），第四晶体管（T4），第五晶体管（T5），第六晶体管（T6），第七晶体管 （T7），第八晶体管（T8），第一电容器（C1），第二电容器（C2），电流源和发光器件（OLED）。 AMOLED像素电路可以在低灰度状态下执行快速充电; 可以根据关于高或低灰度级的信息提供不同的电流，因此可以广泛应用AMOLED像素电路; 在发光周期期间的输出电流是发光装置的正常工作电流; 因此，不仅加快了充电过程，而且确保了发光装置的正常操作。