Touch panel with parallel electrodes
AssigneeHiggstec Inc.
InventorsHerng-Ming Yeh, Yi-Ta Chen
Life of this patent
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Abstract
The disclosure discloses a touch panel with parallel electrodes. The parallel electrodes mainly include a pair of parallel electrodes in x-axis and a pair of parallel electrodes in y-axis, further forming a ring structure by means of a series connection of eight corner resistances. The ring structure is the improvement of the electrode design, and is formed on the conductive layer of touch panel with a chain of series resistances. The voltage support of the conductive layer of the ring structure is provided by the corner electrodes on the conductive layer for touch detection.
Claims17
A touch panel with parallel electrodes, comprising:
- a substrate;
- a conductive layer, formed on the substrate, the conductive layer comprising an internal contact area and an edge resistance around the internal contact area;
- a plurality of corner electrodes, connected to the corner of the edge resistance;
- a pair of parallel electrodes in x-axis, connected to a voltage controlled unit and isolated from the edge resistance, formed out of both sides in x-axis direction of the edge resistance of the conductive layer;
- a pair of parallel electrodes in y-axis, connected to the voltage controlled unit and isolated from the edge resistance, formed out of both sides in y-axis direction of the edge resistance of the conductive layer;
- and
- a plurality of corner resistances, each of the plurality of corner resistances comprises two terminals, one terminal is connected to either the parallel electrode in x-axis or the parallel electrode in y-axis, and the other is connected to one terminal of the plurality of corner electrodes.
A touch panel with parallel electrodes, comprising:
- a substrate;
- a conductive layer, formed on the substrate, the conductive layer comprising an internal contact area and an edge resistance around the internal contact area;
- a plurality of corner electrodes, connected to the corner of the edge resistance;
- a pair of parallel electrodes in x-axis, connected to a voltage controlled unit and isolated from the edge resistance, formed out of both sides in x-axis direction of the edge resistance of the conductive layer;
- a pair of parallel electrodes in y-axis, connected to the voltage controlled unit and isolated from the edge resistance, formed out of both sides in y-axis direction of the edge resistance of the conductive layer;
- and
- a plurality of corner resistances, each of the plurality of corner resistances comprising two terminals, one connected either to the x-axis parallel electrode or the y-axis parallel electrode, and the other connected to one terminal of the plurality of corner electrodes;
- wherein the voltage controlled unit provides a source voltage and a reference voltage to the parallel electrode in y-axis and is connected in a floating manner to the parallel electrode in x-axis to detect the touch coordination in y-axis, and provides the source voltage and the reference voltage to the x-axis parallel electrode and is connected in a floating manner to the parallel electrode in y-axis to detect the touch coordination in x-axis.
The touch panel with parallel electrodes according to 9, wherein the parallel electrodes in x-axis, the parallel electrodes in y-axis and the plurality of corner electrodes are selected from the groups of silver conductive wires, molybdenum/aluminum/molybdenum metal layers and chromium conductive wires.
Dependencies are inferred from the claim text.