COMPOSITE TOUCH PANEL AND METHOD FOR OPERATING THE SAME
First Claim
1. A composite touch panel comprising:
- a first insulating layer;
a first conductive layer;
a plurality of spacers;
a second conductive layer;
a second insulating layer in turn stacked on each other; and
a controller electrically connected to the first conductive layer and the second conductive layer,wherein the controller is adapted to apply a first working voltage to the second conductive layer and to measure at least one sensed voltage on the first conductive layer, whereby the controller identifies the composite touch panel to operate at a resistive mode or a capacitive mode.
0 Assignments
0 Petitions
Accused Products
Abstract
A composite touch panel includes a first insulating layer, a first conductive layer, a plurality of spacers, a second conductive layer and a second insulating layer in turn stacked on each other. The second conductive layer is applied with a predetermined first working voltage, and the voltages at four comers of the first conductive layer are measured. The composite touch panel is judged to work at a resistance mode when one of the measured voltages exceeds a first threshold, and a pressed position on the composite touch panel is determined. The composite touch panel is judged to work at a capacitance mode when all of the measured voltages are smaller than the first threshold. At the capacitance mode, whether a touch is present is judged, and the touch position is also determined when a touch is present.
27 Citations
19 Claims
-
1. A composite touch panel comprising:
-
a first insulating layer; a first conductive layer; a plurality of spacers; a second conductive layer; a second insulating layer in turn stacked on each other; and a controller electrically connected to the first conductive layer and the second conductive layer, wherein the controller is adapted to apply a first working voltage to the second conductive layer and to measure at least one sensed voltage on the first conductive layer, whereby the controller identifies the composite touch panel to operate at a resistive mode or a capacitive mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for operating a composite touch panel with a first insulating layer, a first conductive layer, a plurality of spacers, a second conductive layer, a second insulating layer in turn stacked on each other, the method comprising:
-
applying a first working voltage to the second conductive layer; measuring at least one sensed voltage on the first conductive layer; and identifying the composite touch panel to operate at a resistive mode or a capacitive mode. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification