Au Optronics Corporation

Chao-Chuan Chen

Chao-Chen Wang

Gui-Wen Liu

Kyaw Kyaw Tun

Yu-Ta Chen

Shing-Ming Tai

A touch display includes a plurality of pixels, a plurality of scan lines, a plurality of data lines, a plurality of first conducting layers, and a plurality of third conducting layers. The plurality of scan lines are coupled to the plurality of pixels. The plurality of data lines are coupled to the plurality of pixels and the plurality of first conducting layers to provide a touch driving signal. Each first conducting layer of the plurality of first conducting layers is configured to receive the touch driving signal. The plurality of third conducting layers is configured to output a touch sensing signal according to the touch driving signals outputted by the plurality of first conducting layers.

Touch display and driving method thereof

A touch circuit chip includes a load adjustment unit and a comparator. The load adjustment unit adjusts a determined impedance value according to an impedance matching signal. The first comparator has a first end electrically coupled to a first load and from which to receive a sensing signal, a second end electrically coupled to a second load via the load adjustment unit and from which to receive a reference signal, and an output end. The comparator compares the received sensing signal with the received reference signal and accordingly output a comparison result. The touch circuit chip determines whether there exists a change of a capacitance value of a coupling capacitor between the first and second loads according to the comparison result, wherein the determined impedance value is matched to the impedance value of the coupling capacitor and the first load. A touch apparatus is also provided.

Touch circuit chip and touch apparatus using the same

A touch display apparatus is disclosed in the disclosure. The touch display apparatus includes a panel module, a display driving circuit and a touch sensing circuit. The panel module includes pixel units, common electrode lines and a touch receiving line. The common electrode lines are disposed vertical to the touch response lines. The display driving circuit is coupled to the panel module to drive the pixel units. The display driving circuit is synchronized to the touch sensing circuit. The touch transmission signal for touch-sensing is transmitted via the common electrode line sequentially. In addition, a display-driving method is also disclosed.

Growing community of inventors

Hsin-Chu, Taiwan

Chao-Chuan Chen