公开(公告)号：US11335275B2

公开(公告)日：2022-05-17

申请号：US17317609

申请日：2021-05-11

Applicant: Silicon Works Co., Ltd.

Inventor： Won Kim ,  Young Bok Kim

IPC: G09G3/3291

Abstract: The present disclosure discloses a source driver capable of accurately sensing characteristics of a display panel by minimizing the influence of a floating channel. The source driver may include normal channels connected to pixels of a display panel, a floating channel under no-load; and a sampling circuit configured to sample signals of the normal channels and the floating channel. The source driver may provide a first reference voltage to the floating channel in a first period in which characteristics of the pixels are sensed.

公开(公告)号：US11282456B2

公开(公告)日：2022-03-22

申请号：US17124202

申请日：2020-12-16

Applicant: SILICON WORKS CO., LTD.

Inventor： Taiming Piao ,  Young Bok Kim ,  Won Kim ,  Byeon Cheol Lee

IPC: G09G3/3241 ,  G09G3/3291 ,  G09G3/3233

Abstract: The present disclosure provides, in a pixel sensing, a technology in which a parasitic impedance formed in a sensing line does not affect an integrating circuit using a current mirror circuit coupled with an operational amplifier.

公开(公告)号：US20210272525A1

公开(公告)日：2021-09-02

申请号：US17186416

申请日：2021-02-26

Applicant: Silicon Works Co., Ltd.

Inventor： Seong Geon Kim ,  Young Bok Kim ,  Won Kim

IPC: G09G3/3275

Abstract: A source driver and a display device including the same, capable of accurately sensing pixels characteristics and characteristics of the source driver. A source driver includes a switch circuit configured to transfer first pixel signals or reference signals; first sensing channels configured to sense and hold the first pixel signals or the reference signals transferred from the switch circuit; second sensing channels configured to sense and hold second pixel signals; and a selection circuit configured to output a sampling signal by selecting the first pixel signals of the first sensing channels and the second pixel signals of the second sensing channels, and thereafter, output the sampling signal by selecting the reference signals of the first sensing channels.

公开(公告)号：US11107384B2

公开(公告)日：2021-08-31

申请号：US16851860

申请日：2020-04-17

Applicant: Silicon Works Co., Ltd.

Inventor： Young Bok Kim ,  Won Kim

IPC: G09G3/20

Abstract: A display driving device includes sensing lines configured to sense pixel signals of a display panel; and a voltage limiter provided for each of the sensing lines. The voltage limiter senses a voltage variation of the sensing line, and limits a voltage level of the sensing line to a reference voltage.

公开(公告)号：US20210158762A1

公开(公告)日：2021-05-27

申请号：US16953968

申请日：2020-11-20

Applicant: Silicon Works Co., Ltd.

Inventor： Won Kim ,  Young Bok Kim ,  Dong Ju Kim

IPC: G09G3/3275

Abstract: The present disclosure discloses a display driving device capable of reducing a chip area and a data transmission time and a display device including the same. The display driving device includes a first source driver and a second source driver. Each of the first source driver and the second source driver may include a sensing circuit configured to sample and hold input signals of a multi-channel, a multiplexer configured to transmit the input signals held by the sensing circuit, an analog-to-digital converter configured to convert, into digital data, the input signals received from the multiplexer, and a transmission circuit configured to transmit the digital data to a timing controller through a bus lane. The sensing circuit of the second source driver may hold the input signals while the first source driver transmits the digital data.