Touch sensing device and display apparatus including the same

    公开(公告)号:US10942604B2

    公开(公告)日:2021-03-09

    申请号:US16718632

    申请日:2019-12-18

    Abstract: Disclosed is a touch sensing device for preventing touch sensing performance from being reduced by a parasitic capacitance. The touch sensing device includes a plurality of buffers buffering a difference between a reference signal and a reception signal received from a touch electrode and generating first and second currents corresponding to a buffered signal, a plurality of current mirror units generating a first output signal using a first mirror current generated through mirroring of the first current and a third mirror current generated through mirroring of the second current and generate a second output signal using a second mirror current generated through mirroring of the first current and a fourth mirror current generated through mirroring of the second current, and a plurality of integrators integrating a difference between the first output signal from an nth current mirror unit and the second output signal from an (n−1)th current mirror unit.

    CONTROLLER AND DISPLAY DEVICE INCLUDING THE SAME

    公开(公告)号:US20210049980A1

    公开(公告)日:2021-02-18

    申请号:US16993783

    申请日:2020-08-14

    Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel including a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate border information of pixels provided in a border area located within a predetermined range from the border between the first display area and the second display area, to correct an image that is displayed in the border area based on the border information, and to perform control such that the corrected image is displayed on the display panel.

    Source drive integrated circuit and display apparatus including the same

    公开(公告)号:US10923069B2

    公开(公告)日:2021-02-16

    申请号:US16513181

    申请日:2019-07-16

    Abstract: Disclosed is a source drive integrated circuit comprising: a core unit, a channel processing unit provided in each of a channel area disposed in a first side of the control area and a channel area disposed in a second side of the control area facing the first side to convert digital data, corresponding to a digital image signal transferred from the core unit, into a data voltage corresponding to an analog image signal and to output the data voltage, a resistor string provided in at least one of a pad area disposed in a third side of the control area and a pad area disposed in a fourth side of the control area facing the third side to generate a gamma voltage for converting the digital data into the data voltage and to supply the gamma voltage to the channel processing unit, and N number of gamma pads.

    Display driving device
    87.
    发明授权

    公开(公告)号:US10832606B2

    公开(公告)日:2020-11-10

    申请号:US16198308

    申请日:2018-11-21

    Abstract: Disclosed is a display driving device capable of determining whether a display panel is shorted, based on a voltage level shared by data lines. The display driving device may include: a data driving unit configured to provide source driving signals to data lines of a display panel in a data output period, and control the data lines to share charges in a charge sharing period; and a short monitoring unit configured to detect a voltage level shared in the charge sharing period, and compare the voltage level with a reference voltage that varies according to the voltage level to monitor whether the display panel is shorted.

    Display driving device having test function and display device including the same

    公开(公告)号:US10769972B2

    公开(公告)日:2020-09-08

    申请号:US16351933

    申请日:2019-03-13

    Inventor: Young Gi Kim

    Abstract: A display device having a test function includes a display panel; and a display driving device configured to store pattern data corresponding to test patterns for testing an image quality of the display panel and control data for controlling the pattern data. The display driving device sets a display order and a display time of each of the test patterns by using the control data, and performs driving such that at least two test patterns are displayed on the display panel depending on the control data.

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