公开(公告)号：US20170124956A1

公开(公告)日：2017-05-04

申请号：US15026783

申请日：2015-08-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen YIN

IPC: G09G3/3291 ,  G09G3/3225

CPC classification number: G09G3/3291 ,  G09G3/3225 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0804 ,  G09G2300/0819 ,  G09G2300/0847 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0871 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/045

Abstract: There are disclosed a pixel driving circuit and a driving method thereof and a display apparatus. The pixel driving circuit comprises: a main driving unit (11) connected to a data line; a main light-emitting device (12) connected to the main driving unit; an auxiliary driving unit (13) connected to the main driving unit (11); and an auxiliary light-emitting device (14) connected to the auxiliary driving unit (13). Herein, in an acquisition phase, the main driving unit (11) is configured to discharge through the main light-emitting device (12), and the auxiliary driving unit (13) is configured to discharge through the main light-emitting device (12). In a data storage phase, the main driving unit (11) is configured to store a data voltage; and in a light-emitting phase, the main driving unit (11) is configured to drive the main light-emitting device (12) to emit light, and the auxiliary driving unit (13) is configured to drive the auxiliary light-emitting device (14) to emit light. Since the auxiliary driving unit (13) can drive the auxiliary light-emitting device (14) to emit light in the light-emitting phase, brightness loss of the main light-emitting device (12) is remedied, so that brightness uniformity and brightness constancy of the display apparatus are raised.

公开(公告)号：US20170110055A1

公开(公告)日：2017-04-20

申请号：US15122390

申请日：2015-07-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongqian LI ,  Longyan WANG ,  Quanhu LI ,  Jingwen YIN ,  Baoxia ZHANG ,  Cuili GAI ,  Kun CAO ,  Zhongyuan WU

IPC: G09G3/3258 ,  H01L51/50 ,  G09G3/325 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2310/0216 ,  G09G2320/0204 ,  G09G2320/045 ,  H01L27/3265 ,  H01L27/3276 ,  H01L51/5012

Abstract: The present disclosure relates to a pixel circuit, a driving method thereof and related devices. The pixel circuit comprises: a reset compensation module, a data writing module, a storage module and a driving transistor. With the cooperation of each module, the pixel circuit can compensate shift of a threshold voltage for a driving transistor by storing the threshold voltage for the driving transistor in the storage module. Therefore, when the source of the driving transistor in the pixel circuit is connected with a light emitting device for driving it to emit light for display, the driving current of the driving transistor for driving the light emitting device to emit light will be only associated with the voltage of the data signal, but not the threshold voltage for the driving transistor. In this way, influence of the threshold voltage of the driving transistor on the light emitting device will be avoided.

公开(公告)号：US20170330514A1

公开(公告)日：2017-11-16

申请号：US15533754

申请日：2015-12-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen YIN ,  Lirong WANG

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G3/30 ,  G09G2300/0819 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0233

Abstract: The present disclosure provides a power supply circuit, an array substrate, and a display device. The power supply circuit includes a plurality of power wires, each providing a voltage to a row of pixel units. The plurality of power wires include at least a first power wire and a second power wire, between which at least one logical AND circuit is disposed. The logical AND circuit electrically econnects the first power wire with the second power wire when high level voltages are output by the first power wire and the second power wire simultaneously. As a result, voltages at connection points of two rows of power wires approximate to each other, voltage differences among different rows of pixel units are reduced, and therefore the phenomenon of luminance nonuniformity in a display caused by different voltage drops of different rows of pixel units is improved.

公开(公告)号：US20170033192A1

公开(公告)日：2017-02-02

申请号：US14913581

申请日：2015-07-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Longyan WANG ,  Yongqian LI ,  Kun CAO ,  Quanhu LI ,  Jingwen YIN ,  Baoxia ZHANG ,  Cuili GAI ,  Zhongyuan WU ,  Gang WANG

IPC: H01L29/45 ,  H01L29/22 ,  H01L29/20 ,  H01L29/786 ,  H01L21/4763 ,  H01L29/423 ,  H01L21/285 ,  H01L21/443 ,  H01L21/3213 ,  H01L29/24 ,  H01L29/66

CPC classification number: H01L29/45 ,  H01L21/28575 ,  H01L21/32134 ,  H01L21/443 ,  H01L21/47635 ,  H01L29/20 ,  H01L29/2003 ,  H01L29/22 ,  H01L29/24 ,  H01L29/42356 ,  H01L29/66522 ,  H01L29/66742 ,  H01L29/66969 ,  H01L29/786 ,  H01L29/78681 ,  H01L29/7869

Abstract: A thin film transistor, a manufacturing method thereof, and a display device are provided. The thin film transistor includes a gate electrode (21), an active layer (23), a source electrode (241) and a drain electrode (242). The source electrode (241) and the drain electrode (242) are formed of at least two materials, the forming materials of the source electrode (241) and the drain electrode (242) can create a cell reaction in a corresponding etching solution so as to be etched, and material of the active layer (23) is not corroded by the etching solution. With the thin film transistor and manufacturing method thereof according to embodiments of the invention, a problem that an active layer is liable to be corroded in an etching procedure of a source electrode and a drain electrode can be solved, and thus the thin film transistor device can be manufactured by using a back channel etch process. Consequently, the process number for manufacture of the thin film transistor is decreased, and the manufacturing cost is saved.

Abstract translation: 提供薄膜晶体管，其制造方法和显示装置。 薄膜晶体管包括栅电极（21），有源层（23），源电极（241）和漏电极（242）。 源极（241）和漏电极（242）由至少两种材料形成，源电极（241）和漏电极（242）的形成材料可以在相应的蚀刻溶液中产生电池反应，从而 被蚀刻，并且有源层（23）的材料不被蚀刻溶液腐蚀。 利用根据本发明的实施例的薄膜晶体管及其制造方法，可以解决在源电极和漏电极的蚀刻过程中有源层易于腐蚀的问题，因此薄膜晶体管器件 可以通过使用背沟道蚀刻工艺来制造。 因此，薄膜晶体管的制造工序减少，节省了制造成本。

公开(公告)号：US20170148388A1

公开(公告)日：2017-05-25

申请号：US15116624

申请日：2015-10-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Kun CAO ,  Baoxia ZHANG ,  Yongqian LI ,  Quanhu LI ,  Longyan WANG ,  Jingwen YIN

IPC: G09G3/3258 ,  H01L27/12 ,  G09G3/3291 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/0626 ,  H01L27/1255 ,  H01L27/3248 ,  H01L27/3276

Abstract: There are provided in the present disclosure a pixel driving circuit, an array substrate and a display apparatus. The pixel driving circuit comprises: a compensation module (11), a control module (12), a driving modeling (13), and a light emitting module (14), wherein: the compensation module (11) is connected to a scan signal (Scan), a data signal (Vdata) and a reference signal (VREF) and further connected to the control module (12) and the drive module (13), and is configured to receive the data signal (Vdata) and the reference signal (VREF) under the control of the scan signal (Scan) and compensate for a threshold voltage of the drive module (13) under the control of the control module (12); the control module (12) is connected to a light emitting control signal (EM) and a power supply signal (ELVDD) and further connected to the drive module (13) and the light emitting module (14), and is configured to receive the power supply signal (ELVDD) under the control of the light emitting control signal (EM) to control the compensation module (11) to compensate for the threshold voltage of the drive module (13); one terminal of the light emitting module (14) is connected to the drive module (13), and the other terminal thereof is grounded (VSS); and; the drive module (13) is configured to drive the light emitting module (14) to emit light under the control of the control module (12). The pixel driving circuit is capable of avoiding non-uniformity of luminance of the display device, and enhancing the display effect of the display device.

公开(公告)号：US20160035276A1

公开(公告)日：2016-02-04

申请号：US14422822

申请日：2014-04-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen YIN ,  Zhongyuan WU

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/3225 ,  G09G3/2092 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/043

Abstract: An OLED pixel circuit includes a data storage and threshold compensation module, a switch module, a driving module, and a light-emitting module. The data storage and threshold compensation module is connected to the driving module, the switch module, a scanning signal line, and a data signal line, respectively, and is used for inputting a data signal on the data signal line to the driving module and compensating a threshold voltage of the driving module according to a scanning signal of the scanning signal line. The switch module is connected to the driving module, the light-emitting module, and a light emission control signal line, respectively, and is used for inputting the data signal provided by the threshold-compensated driving module to the light-emitting module according to a control signal of the light emission control signal line, so that the light-emitting module is driven to emit light.

Abstract translation: OLED像素电路包括数据存储和阈值补偿模块，开关模块，驱动模块和发光模块。 数据存储和阈值补偿模块分别连接到驱动模块，开关模块，扫描信号线和数据信号线，用于将数据信号线上的数据信号输入到驱动模块并补偿 根据扫描信号线的扫描信号的驱动模块的阈值电压。 开关模块分别连接到驱动模块，发光模块和发光控制信号线，并用于将由阈值补偿驱动模块提供的数据信号输入到发光模块，根据 发光控制信号线的控制信号，使得发光模块被驱动以发光。