公开(公告)号：US11023701B2

公开(公告)日：2021-06-01

申请号：US16425887

申请日：2019-05-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kuo-Wei Cheng ,  Min Huang

IPC: G06K9/00 ,  H03K17/96

Abstract: A signal processing circuit for processing a sensing signal from a sensing circuit includes a plurality of input capacitors, an amplifier, an input switch group, a plurality of storage capacitors and a plurality of storage control switches. The plurality of input capacitors are configured to receive the sensing signal from one of a differential input nodes of the signal processing circuit and couple the sensing signal to a plurality of floating nodes. The amplifier, coupled to the plurality of floating nodes, is configured to amplify the sensing signal coupled from the plurality of floating nodes. The input switch group is coupled between the plurality of floating nodes and the plurality of input capacitors. The plurality of storage control switches, coupled between the plurality of floating nodes and the plurality of storage capacitors, are configured to couple offset information of the plurality of input capacitors to the plurality of storage capacitors.

公开(公告)号：US11862091B1

公开(公告)日：2024-01-02

申请号：US18094407

申请日：2023-01-09

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kuo-Wei Cheng

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2310/0251 ,  G09G2320/0233

Abstract: A pixel circuit of a display panel includes a driving transistor, first to fifth transistors, and a light emitting device. The driving transistor includes a first terminal, a second terminal and a gate terminal. The first transistor is coupled between a power supply terminal and the first terminal of the driving transistor. The second transistor is coupled between the first terminal of the driving transistor and the gate terminal of the driving transistor. The third transistor is coupled between the second terminal of the driving transistor and the gate terminal of the driving transistor. The fourth transistor is coupled between a data input terminal and the second terminal of the driving transistor. The fifth transistor is coupled to the second terminal of the driving transistor. The light emitting device is coupled between the fifth transistor and a reference voltage terminal.

公开(公告)号：US20200380231A1

公开(公告)日：2020-12-03

申请号：US16425887

申请日：2019-05-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kuo-Wei Cheng ,  Min Huang

IPC: G06K9/00 ,  H03K17/96

Abstract: A signal processing circuit for processing a sensing signal from a sensing circuit includes a plurality of input capacitors, an amplifier, an input switch group, a plurality of storage capacitors and a plurality of storage control switches. The plurality of input capacitors are configured to receive the sensing signal from one of a differential input nodes of the signal processing circuit and couple the sensing signal to a plurality of floating nodes. The amplifier, coupled to the plurality of floating nodes, is configured to amplify the sensing signal coupled from the plurality of floating nodes. The input switch group is coupled between the plurality of floating nodes and the plurality of input capacitors. The plurality of storage control switches, coupled between the plurality of floating nodes and the plurality of storage capacitors, are configured to couple offset information of the plurality of input capacitors to the plurality of storage capacitors.