Au Optronics Corporation

Hsin-Yu Pan

Chung-Min Lien

Ya-Ling Hsu

Yueh-Hung Chung

Han-Ming Chen

A substrate with touch function includes a plurality of scan lines and at least a touch device disposed thereon. The touch device includes at least a power line, at least a readout line, a light sensing circuit and a voltage divider circuit. The power line and the readout line are disposed on the substrate. The light sensing circuit is electrically coupled to a (N+1)th of the power lines, an Nth of the scan lines and an Nth of the readout lines, wherein N is an integer. The voltage divider circuit has an output terminal and is configured to output a first voltage to the light sensing circuit through the output terminal thereof according to a degree of illumination thereon or a degree of capacitance change. A display using the aforementioned substrate is also provided.

Substrate with touch function and display using the same

An optical touch display panel includes a plurality of light-sensing touch units and a position detecting circuit. Each light-sensing touch unit includes a light-sensing component, a storage capacitor, a signal reading component, and a charging component. The light-sensing component senses a light source to generate a sensing signal. The storage capacitor is connected electrically to the light-sensing component for storing the sensing signal. The signal reading component is connected electrically to the storage capacitor for reading a voltage of the storage capacitor to generate a reading signal. The charging signal is connected electrically to the storage capacitor for charging the storage capacitor to reset an electric charge record of the storage capacitor. The position detecting circuit is connected electrically to the light-sensing touch units for detecting a touch point on the optical touch display panel according to a reading signal output by each of the light-sensing touch units.

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Hsin-Chu, Taiwan

Hsin-Yu Pan