公开(公告)号：US20190130833A1

公开(公告)日：2019-05-02

申请号：US15977450

申请日：2018-05-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling GAO ,  Cheng Chung Yang ,  Kuanjun PENG ,  Xiangxiang ZOU ,  Yang Yang

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a pixel unit and a bias-voltage regulating circuit. The pixel unit includes: a driving circuit configured to generate a driving current according to a control voltage at a light-emitting stage; a light-emitting control circuit configured to output the driving current to drive the light-emitting device to emit light at the light-emitting stage; a data writing circuit configured to write a data voltage into the driving circuit; a reset circuit configured to reset the driving circuit under control of a reset voltage, and to reset the light-emitting device under control of a gate line; and a bias-voltage regulating circuit configured to, before the data writing circuit writes the data voltage into the driving circuit, perform bias voltage regulation on the driving circuit to control the pixel unit to be in a bias voltage state.

公开(公告)号：US10964261B2

公开(公告)日：2021-03-30

申请号：US16337227

申请日：2018-08-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cheng Chung Yang

IPC: G09G3/3233 ,  H01L27/32

Abstract: Embodiments of the present disclosure provide a pixel circuitry, a method for driving the pixel circuitry, an array substrate, and a display device. The pixel circuitry may include a preset circuit, a storage circuit, a driving circuit, a compensation circuit, and a light emitting element. The preset circuit may provide a signal from a data signal terminal to a first node, and provide a signal from an initialization signal terminal to a second node. The storage circuit may store a voltage difference between the first node and the second node. The driving circuit may provide a driving current to a third node according to a voltage of the first node. The compensation circuit may compensate for a voltage of the second node according to a signal from a control signal terminal. The light emitting element may emit light according to the driving current.

公开(公告)号：US10720104B2

公开(公告)日：2020-07-21

申请号：US15977450

申请日：2018-05-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Cheng Chung Yang ,  Kuanjun Peng ,  Xiangxiang Zou ,  Yang Yang

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a pixel unit and a bias-voltage regulating circuit. The pixel unit includes: a driving circuit configured to generate a driving current according to a control voltage at a light-emitting stage; a light-emitting control circuit configured to output the driving current to drive the light-emitting device to emit light at the light-emitting stage; a data writing circuit configured to write a data voltage into the driving circuit; a reset circuit configured to reset the driving circuit under control of a reset voltage, and to reset the light-emitting device under control of a gate line; and a bias-voltage regulating circuit configured to, before the data writing circuit writes the data voltage into the driving circuit, perform bias voltage regulation on the driving circuit to control the pixel unit to be in a bias voltage state.

公开(公告)号：US10650751B2

公开(公告)日：2020-05-12

申请号：US15982408

申请日：2018-05-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiangxiang Zou ,  Cheng Chung Yang ,  Yinglong Huang ,  Kuanjun Peng

IPC: G09G3/3208 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  H01L27/32

Abstract: A pixel driving circuit and a driving method thereof, and a display device. The pixel driving circuit includes a light-emitting driving circuit, a light-emitting component and a gate-source voltage adjustment circuit. A control end, a first end and a second end of the light-emitting driving circuit are electrically connected with a first node, a second node and the light-emitting component respectively; the gate-source voltage adjustment circuit is electrically connected with at least one of the first node and the second node, the gate-source voltage adjustment circuit is also electrically connected with an adjustment voltage terminal, and the gate-source voltage adjustment circuit is configured to adjust at least one of a voltage of the first node and a voltage of the second node, so as to increase a modulus value of a voltage difference between the control end and the first end of the light-emitting driving circuit.