| 摘要 |
<p>The present invention provides a touch circuit, a touch substrate and a touch display apparatus. The touch circuit comprises an illumination sensing module arranged corresponding to a touch area, which is used for, when the touch area is illuminated by a light meeting a first preset condition, using a first signal transmitted by a signal input line as a sensing signal and transmitting the sensing signal to a processor through a first sensing signal transmission line and a second sensing signal transmission line respectively. Based on a first sensing signal transmitted by the first sensing signal transmission line and a second sensing signal transmitted by the second sensing signal transmission line, the processor determines location information of the touch area. Thus, a long-distance contactless touch function can be implemented, enabling a user to conveniently use the touch display apparatus.</p> |
