公开(公告)号：US20160307503A1

公开(公告)日：2016-10-20

申请号：US14777831

申请日：2015-02-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chen Song ,  Liye Duan

IPC: G09G3/3233 ,  G09G3/20

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

Abstract: 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.

Abstract translation: 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

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liye Duan ,  Lirong Wang ,  Zhongyuan Wu

IPC: G09G5/10 ,  G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2007 ,  G09G3/3241 ,  G09G2300/0819 ,  G09G2310/0251 ,  G09G2320/0271

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09373281B2

公开(公告)日：2016-06-21

申请号：US14348720

申请日：2013-06-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongyuan Wu ,  Liye Duan

IPC: G09G5/10 ,  G09G3/32 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2003 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0289 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/045

Abstract: A pixel unit circuit, a compensating method thereof and a display device. The pixel unit circuit includes a driving transistor, a first transistor, a second transistor, a third transistor, a fourth transistor, a storage capacitor and a light-emitting device (OLED). The pixel unit circuit, the compensating method thereof and the display device may compensate the light emitting device by combining an internal compensation and an external compensation, and have advantages of both the internal compensation and the external compensation. The Mura phenomenon caused by non-uniformity in threshold voltages or drifts of threshold voltages in the N-type depletion or enhanced driving transistor TFT may be eliminated effectively by the internal compensation, which may enhance a display effect. Additionally, the pixel unit circuit, the compensating method thereof and the display device may have a function for extracting characteristics of the driving TFT and characteristics of the light emitting device, which may be applicable to the external compensation driving effectively.

Abstract translation: 像素单元电路，其补偿方法和显示装置。 像素单元电路包括驱动晶体管，第一晶体管，第二晶体管，第三晶体管，第四晶体管，存储电容器和发光器件（OLED）。 像素单元电路及其补偿方法和显示装置可以通过组合内部补偿和外部补偿来补偿发光器件，并且具有内部补偿和外部补偿的优点。 在N型耗尽或增强驱动晶体管TFT中阈值电压不均匀或阈值电压漂移引起的Mura现象可以通过内部补偿被有效地消除，这可以增强显示效果。 此外，像素单元电路及其补偿方法和显示装置可以具有用于提取驱动TFT的特性和发光器件的特性的功能，其可以有效地适用于外部补偿驱动。