公开(公告)号：US09916792B2

公开(公告)日：2018-03-13

申请号：US15026783

申请日：2015-08-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin

IPC: G09G3/32 ,  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：US09875686B2

公开(公告)日：2018-01-23

申请号：US14555911

申请日：2014-11-28

Applicant: Boe Technology Group Co., Ltd.

Inventor： Jingwen Yin ,  Cuili Gai

IPC: G09G3/30 ,  G09G3/3216

CPC classification number: G09G3/3216 ,  G09G2320/0223

Abstract: The present disclosure relates to a voltage driving pixel circuit, a display panel and a driving method thereof. The voltage driving pixel circuit comprises: any two power lines and a load connected in each power line, wherein there is one or more switching circuits between the any two power lines. By means of the voltage driving pixel circuit of the present disclosure, the power lines form a network structure in the light emitting phase, so as to avoid voltage change of the power line voltage Vdd of each row in the pixel in the light emitting phase, thereby improving lateral resistance drop and crosstalk phenomenon of the variable power line voltage Vdd.

公开(公告)号：US09099417B2

公开(公告)日：2015-08-04

申请号：US14236283

申请日：2013-08-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Zhongyuan Wu ,  Liye Duan

IPC: H01L27/32 ,  G09G3/32

CPC classification number: H01L27/3265 ,  G09G3/325 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/067 ,  G09G2320/045

Abstract: The present invention relates to the field of display technology, and provides a pixel circuit, a driving method thereof, and a display device, so as to compensate for the TFT threshold voltage drift, thereby to improve the brightness non-uniformity of the display device and prolong the service life thereof. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a first storage capacitor, a second storage capacitor, and a light-emitting element. The present invention is adapted to manufacture a display panel.

Abstract translation: 本发明涉及显示技术领域，并提供像素电路及其驱动方法和显示装置，以补偿TFT阈值电压漂移，从而提高显示装置的亮度不均匀性 并延长其使用寿命。 像素电路包括第一晶体管，第二晶体管，第三晶体管，第四晶体管，第五晶体管，第一存储电容器，第二存储电容器和发光元件。 本发明适用于制造显示面板。

公开(公告)号：US10181284B2

公开(公告)日：2019-01-15

申请号：US14916349

申请日：2015-09-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Cuili Gai

IPC: H01L27/32 ,  G09G3/3233

Abstract: There are provided a driving circuit and a repairing method thereof, and a display apparatus. The driving circuit comprises: a driving transistor (T1), whose first terminal is input a power supply signal (Vdd), second terminal is connected to a display unit (10), and control terminal is input a data signal (Vdata). The driving circuit further comprises: a standby driving unit (11) including a standby transistor (T3), a first capacitor (C1) and a second capacitor (C2), a first terminal of the standby driving transistor (T3) is input the power supply signal (Vdd), a second terminal thereof is connected to the display unit (10) through the first capacitor (C1), and a control terminal thereof is connected to the control terminal of the driving terminal (T1) or the first terminal of the driving transistor (T1) through the second capacitor (C2). When abnormality occurs to the driving transistor (T1), it is able to make the pixel operate normally by means of a repairing approach, so that display effect of the display panel can be enhanced and production yield of the display panel is enhanced.

公开(公告)号：US09954070B2

公开(公告)日：2018-04-24

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: H01L29/10 ,  H01L29/04 ,  H01L29/45 ,  H01L29/786 ,  H01L21/285 ,  H01L21/3213 ,  H01L21/443 ,  H01L21/4763 ,  H01L29/20 ,  H01L29/22 ,  H01L29/24 ,  H01L29/423 ,  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.

公开(公告)号：US20160247449A1

公开(公告)日：2016-08-25

申请号：US14429827

申请日：2014-08-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Zhongyuan Wu

IPC: G09G3/3258 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/0626

Abstract: The present invention discloses a pixel circuit and a driving method thereof, a display panel, and a display device, so as to improve brightness uniformity. The pixel circuit in the present invention comprises a control sub-circuit, a compensation sub-circuit, a driving transistor and a light emitting device. The present invention enables the driving current that drives the light emitting device to emit light to be uncorrelated with the threshold voltage of the driving transistor, so as to improve display uniformity of the panel.

Abstract translation: 本发明公开了一种像素电路及其驱动方法，显示面板和显示装置，以提高亮度均匀性。 本发明中的像素电路包括控制子电路，补偿子电路，驱动晶体管和发光器件。 本发明使得驱动发光器件发光的驱动电流与驱动晶体管的阈值电压不相关，从而提高面板的显示均匀性。

公开(公告)号：US10276098B2

公开(公告)日：2019-04-30

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 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  H01L27/12 ,  H01L27/32

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：US20160133188A1

公开(公告)日：2016-05-12

申请号：US14555911

申请日：2014-11-28

Applicant: Boe Technology Group Co., Ltd.

Inventor： Jingwen Yin ,  Cuili Gai

IPC: G09G3/32

CPC classification number: G09G3/3216 ,  G09G2320/0223

Abstract: The present disclosure relates to a voltage driving pixel circuit, a display panel and a driving method thereof. The voltage driving pixel circuit comprises: any two power lines and a load connected in each power line, wherein there is one or more AND gate circuits between the any two power lines. By means of the voltage driving pixel circuit of the present disclosure, the power lines form a network structure in the light emitting phase, so as to avoid voltage change of the power line voltage Vdd of each row in the pixel in the light emitting phase, thereby improving lateral resistance drop and crosstalk phenomenon of the variable power line voltage Vdd.

Abstract translation: 本发明涉及电压驱动像素电路，显示面板及其驱动方法。 电压驱动像素电路包括：任何两条电力线和连接在每条电力线中的负载，其中在任意两个电力线之间存在一个或多个与门电路。 通过本公开的电压驱动像素电路，电力线在发光阶段形成网络结构，以避免在发光相位的像素中每行的电力线电压Vdd的电压变化， 从而提高可变电源线电压Vdd的横向电阻下降和串扰现象。

公开(公告)号：US20150287360A1

公开(公告)日：2015-10-08

申请号：US14437031

申请日：2014-08-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Zhongyuan Wu ,  Lirong Wang

IPC: G09G3/32 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0219 ,  G09G2320/0626 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: There is provided a pixel circuit comprising a driving transistor (DTFT), a signal loading module, a light emitting control module and a storage capacitor (Cs). The pixel circuit can effectively eliminate the non-uniformity due to the threshold voltage of the driving transistor (DTFT) itself and the afterimage phenomenon due to the threshold voltage drift when driving the OLED, avoid the display brightness non-uniformity due to different threshold voltages of the driving transistors (DTFT) between the OLEDs of different pixel units. There is further provided a driving method for the above pixel circuit and a TFT backboard comprising the above pixel circuit.

Abstract translation: 提供了包括驱动晶体管（DTFT），信号加载模块，发光控制模块和存储电容器（Cs）的像素电路。 像素电路可以有效地消除由于驱动晶体管（DTFT）本身的阈值电压而导致的不均匀性，以及驱动OLED时由于阈值电压漂移引起的残像现象，避免了由于不同阈值电压引起的显示亮度不均匀 的不同像素单元的OLED之间的驱动晶体管（DTFT）。 还提供了上述像素电路的驱动方法和包括上述像素电路的TFT背板。

公开(公告)号：US20150028765A1

公开(公告)日：2015-01-29

申请号：US14236283

申请日：2013-08-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingwen Yin ,  Zhongyuan Wu ,  Liye Duan

IPC: H01L27/32

CPC classification number: H01L27/3265 ,  G09G3/325 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/067 ,  G09G2320/045

Abstract: The present invention relates to the field of display technology, and provides a pixel circuit, a driving method thereof, and a display device, so as to compensate for the TFT threshold voltage drift, thereby to improve the brightness non-uniformity of the display device and prolong the service life thereof. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a first storage capacitor, a second storage capacitor, and a light-emitting element. The present invention is adapted to manufacture a display panel.

Abstract translation: 本发明涉及显示技术领域，并提供像素电路及其驱动方法和显示装置，以补偿TFT阈值电压漂移，从而提高显示装置的亮度不均匀性 并延长其使用寿命。 像素电路包括第一晶体管，第二晶体管，第三晶体管，第四晶体管，第五晶体管，第一存储电容器，第二存储电容器和发光元件。 本发明适用于制造显示面板。