Voltage compensation method, voltage compensation device and touch display module

    公开(公告)号:US11353987B2

    公开(公告)日:2022-06-07

    申请号:US16478716

    申请日:2018-12-27

    Abstract: A voltage compensation method includes: within a touch time period, multiplexing common electrode blocks as touch electrodes, and scanning the common electrode blocks in at least one column sequentially to detect a capacitance of each scanned common electrode block; within a time period between detecting the capacitance of each scanned common electrode block and starting an Nth display time period after the touch time period, calculating power consumption for each scanned common electrode block in accordance with the capacitance thereof, acquiring a corresponding common electrode voltage compensation value based on the power consumption, and adding the common electrode voltage compensation value to a reference common electrode voltage to acquire a compensated common electrode voltage applied to each scanned common electrode block; and within the Nth display time period, adjusting a common electrode voltage applied to each scanned common electrode block into the compensated common electrode voltage.

    Source driving circuit, driving method and display device

    公开(公告)号:US11205372B2

    公开(公告)日:2021-12-21

    申请号:US16960574

    申请日:2019-09-23

    Abstract: A source driving circuit includes a buffer amplifier configured to generate a driving signal from an original driving signal. The buffer amplifier includes a first amplifier and a second amplifier. A high-level terminal of the first amplifier is coupled to the first power signal terminal, a low-level terminal is coupled to the second power signal terminal, and an output terminal is configured to output a positive polarity driving signal. A high-level terminal of the second amplifier is coupled to the third power signal terminal, a low-level terminal is coupled to the fourth power signal terminal, and an output terminal is configured to output a negative polarity driving signal. The voltage of the second power signal terminal is less than the voltage of the third power signal terminal.

    Backlight module, display device and method for manufacturing the display device

    公开(公告)号:US10129966B2

    公开(公告)日:2018-11-13

    申请号:US15098506

    申请日:2016-04-14

    Abstract: Embodiments of the present invention relate to a backlight module, a display device and a method for manufacturing the display device. The backlight module includes: a backlight module body and a conductive light-shielding adhesive for bonding the backlight module body and a display panel, the backlight module body is provided with a connecting wire for electrically connecting to the display panel circuit board arranged on the display panel, the display panel circuit board is provided with a ground terminal. According to the present invention, static electricity on the display panel may flow to the ground terminal through the conductive light-shielding adhesive, the backlight module body and the display panel circuit board, by providing the conductive light-shielding adhesive and the connecting wire on the backlight module, such that the effects of increasing the static electricity protection capability to the backlight module and the life of the display panel are achieved.

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