Source driver and display device including the same

    公开(公告)号:US11222599B2

    公开(公告)日:2022-01-11

    申请号:US17186416

    申请日:2021-02-26

    IPC分类号: G09G3/3275

    摘要: 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.

    DISPLAY DRIVING DEVICE
    5.
    发明申请

    公开(公告)号:US20200335024A1

    公开(公告)日:2020-10-22

    申请号:US16851860

    申请日:2020-04-17

    发明人: Young Bok Kim Won Kim

    IPC分类号: G09G3/20

    摘要: 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.

    Display driving device capable of reducing a chip area and a data transmission time and display device including the same

    公开(公告)号:US11222598B2

    公开(公告)日:2022-01-11

    申请号:US16953968

    申请日:2020-11-20

    IPC分类号: G09G3/3275

    摘要: 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.

    SENSING CIRCUIT AND SOURCE DRIVER INCLUDING THE SAME

    公开(公告)号:US20210158738A1

    公开(公告)日:2021-05-27

    申请号:US16953719

    申请日:2020-11-20

    IPC分类号: G09G3/20

    摘要: Provided area sensing circuit capable of accurately sensing characteristics of pixels and a source driver including the same. The sensing circuit may include multiple channels configured to receive a plurality of input signals from a display panel and a sampling circuit configured to sample the plurality of input signals received through the multiple channels and scale a plurality of sampling signals. The sampling circuit may sample the plurality of input signals at the same first time, and may scale the plurality of sampling signals at the same second time.

    Source driver and display device including the same

    公开(公告)号:US11508319B2

    公开(公告)日:2022-11-22

    申请号:US17459948

    申请日:2021-08-27

    发明人: Won Kim Young Bok Kim

    IPC分类号: G09G3/3291

    摘要: A source driver capable of improving sensing accuracy even when a black image signal is provided to reduce motion blur during a sensing period for sensing signals of pixels of a display panel, and a display device including the same. The source driver includes an output buffer configured to output a source signal; a voltage terminal applied with a black image signal of a preset voltage level; a source output terminal connected to a data line of a display panel; and a switch circuit configured to connect one of an output terminal of the output buffer and the voltage terminal to the source output terminal, wherein the switch circuit connects the voltage terminal to the source output terminal during a black image insertion period of a sensing period in which a pixel of the display panel is sensed.