Himax Technologies, Inc.

Chih-Chen Tsai

Chung-Wen Chang

Li-Lin Liu

Chun-Kai Chuang

Fong-Wei Yang

Chien-Cheng Liao

Jing-Ho Chen

Po-Kai Tseng

A touch display device and an operating method for the touch display device are provided. The touch display device includes a touch display panel, a touch display driving circuit and a computing circuit. The touch display driving circuit drives the touch display panel to perform a display operation based on a scan frequency and to perform a touch sensing operation based on a plurality of touch sensing cycles. The computing circuit determines a plurality of scan finishing positions on the touch display panel in response to the scan frequency and the touch sensing cycles, receives a touch sensing data corresponding to the scan finishing positions, and compensates the touch sensing data based on a base value.

Touch display device and operating method for touch display device

A water mode detection method includes: operating a normal touch detection operation on each of a plurality of touch detection unit groups during each of a plurality of normal scan periods to obtain a first detection result; operating a dummy touch detection operation on a first touch detection group of the touch detection unit groups to obtain a second detection result during a dummy scan period, and setting a common voltage of a second touch detection group of a plurality of non-scanned touch detection unit groups to a reference ground during the dummy touch detection operation; and generating a water mode detection result according to the first detection result and the second detection result.

In-cell touch apparatus and a water mode detection method thereof

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Tainan, Taiwan

Chih-Chen Tsai