Touch display apparatus, driver integrated circuit and touch display panel

    公开(公告)号:US11573653B2

    公开(公告)日:2023-02-07

    申请号:US17493865

    申请日:2021-10-05

    Inventor: Wei-Kang Tsai

    Abstract: The invention provides a touch display apparatus, a driver integrated circuit and a touch display panel. The driver integrated circuit includes a first pad, at least one second pad, a display driving channel, a touch sensing channel, a switching circuit, and a control circuit. The switching circuit is coupled to the display driving channel, the touch sensing channel and the first pad. In a display phase, the switching circuit and the routing circuit are controlled to couple the display driving channel to a data line of the touch display panel via the first pad, and a control signal for controlling the routing circuit is via the at least one second pad. In a touch phase, the switching circuit and the routing circuit are controlled to couple the touch sensing channel to a common electrode of the touch display panel via the first pad.

    TOUCH DISPLAY APPARATUS, DRIVER INTEGRATED CIRCUIT AND TOUCH DISPLAY PANEL

    公开(公告)号:US20220121302A1

    公开(公告)日:2022-04-21

    申请号:US17493865

    申请日:2021-10-05

    Inventor: Wei-Kang Tsai

    Abstract: The invention provides a touch display apparatus, a driver integrated circuit and a touch display panel. The driver integrated circuit includes a first pad, at least one second pad, a display driving channel, a touch sensing channel, a switching circuit, and a control circuit. The switching circuit is coupled to the display driving channel, the touch sensing channel and the first pad. In a display phase, the switching circuit and the routing circuit are controlled to couple the display driving channel to a data line of the touch display panel via the first pad, and a control signal for controlling the routing circuit is via the at least one second pad. In a touch phase, the switching circuit and the routing circuit are controlled to couple the touch sensing channel to a common electrode of the touch display panel via the first pad.

    Method of controlling stylus and finger touch detection and related controller

    公开(公告)号:US11231768B1

    公开(公告)日:2022-01-25

    申请号:US17008578

    申请日:2020-08-31

    Abstract: The present invention provides a method of a controller, for controlling a plurality of drivers, each coupled to a panel having a plurality of areas and configured to control at least one of the areas of the panel. The method includes steps of: controlling each of the drivers to perform finger touch detection in a first finger detection mode and perform stylus detection in a first stylus detection mode; when a finger touch is detected on a first area in the first finger detection mode, controlling a first driver corresponding to the first area to perform finger touch detection in a second finger detection mode on the first area; and when a stylus is detected on a second area in the first stylus detection mode, controlling a second driver corresponding to the second area to perform stylus detection in a second stylus detection mode on the second area.

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