公开(公告)号：US20210158763A1

公开(公告)日：2021-05-27

申请号：US16889776

申请日：2020-06-01

Applicant: Au Optronics Corporation

Inventor： Sen-Chuan Hung

IPC: G09G3/3291

Abstract: A light-emitting diode apparatus and a control method are provided. The control method includes: a voltage level of a second terminal of a driving transistor is pulled down via a voltage regulator according to a light-emitting control signal and a voltage control signal in a pre-reset phase to increase a voltage difference between a first terminal and the second terminal of the driving transistor; a control terminal of the driving transistor is reset by receiving a reset voltage in a first reset phase; the control terminal of the driving transistor is compensated to a compensation voltage in a compensation phase; and the driving transistor provides a driving current in a light emission phase to drive a light-emitting diode to emit a light.

公开(公告)号：US11145252B2

公开(公告)日：2021-10-12

申请号：US16423028

申请日：2019-05-26

Applicant: Au Optronics Corporation

Inventor： Sen-Chuan Hung ,  Shih-Hao Kuo

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3225 ,  G09G3/325 ,  G09G3/3208 ,  G09G3/32

Abstract: A light-emitting diode apparatus and a control method of the light-emitting diode apparatus are provided. The control method includes: applying a pre-reset voltage to a control terminal of a driving transistor of the light-emitting diode apparatus in a pre-resetting stage to pre-reset the control terminal of the driving transistor; resetting the control terminal of the driving transistor of the light-emitting diode apparatus by using a reset voltage source in a first resetting stage; compensating the control terminal of the driving transistor to a compensation voltage in a compensation stage; and providing, by the driving transistor, a driving current in a light emission stage to drive a light-emitting diode of the light-emitting diode apparatus to emit light.

公开(公告)号：US10157570B2

公开(公告)日：2018-12-18

申请号：US15151997

申请日：2016-05-11

Applicant: AU OPTRONICS CORPORATION

Inventor： Sen-Chuan Hung ,  Chun-Yen Liu

IPC: G09G3/3258 ,  G09G3/3233

Abstract: A pixel circuit includes a driving unit, a light emitting unit having a second terminal receiving a second voltage, a compensation capacitor, and first, second and third switches. The first switch has a first terminal connected to the driving unit, and a control terminal for receiving a first control signal. The second switch has a first terminal coupled to the second terminal of the first switch, a second terminal for receiving an initialization signal, and a control terminal for receiving the first control signal. The compensation capacitor has a first terminal coupled to the second terminal of the first switch, and a second terminal coupled to the first terminal of the light emitting unit. The third switch has a first terminal connected to the driving unit, a second terminal coupled to the first terminal of the light emitting unit, and a control terminal for receiving a light emission control signal.

公开(公告)号：US10204552B2

公开(公告)日：2019-02-12

申请号：US15408611

申请日：2017-01-18

Applicant: AU OPTRONICS CORPORATION

Inventor： Sen-Chuan Hung ,  Chi-Fu Tsao

IPC: G09G3/3233

Abstract: A light-emitting diode device control method includes using a reset voltage source to reset a control terminal of a driving-transistor of the light-emitting diode device; compensating the control terminal of the driving-transistor to a compensation voltage level; resetting a first terminal of the driving transistor to a target voltage level so as to increase a voltage difference between the first terminal and a second terminal of the driving transistor; and the driving transistor providing a driving current for driving a light-emitting diode of the light-emitting diode device to emit light.

公开(公告)号：US10181280B2

公开(公告)日：2019-01-15

申请号：US15201961

申请日：2016-07-05

Applicant: AU Optronics Corporation

Inventor： Sen-Chuan Hung ,  Chia-Yuan Yeh

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3275

Abstract: A pixel circuit includes a first switch unit, a second switch unit, a data line, a charge sharing line and a pixel-driving unit. The pixel-driving unit is electrically connected with the data line and a first terminal of the first switch unit. A second terminal of the first switch unit is electrically connected with the charge sharing line and a first terminal of the second switch unit. A second terminal of the second switch unit is electrically connected with the data line. In a charge sharing period, the voltage value of the data line is determined according to a first data voltage provided by the data line in an initial period and a control voltage provided by the charge sharing line during the initial period.