Touch panel device
AssigneeSamsung SDI Co., Ltd.
InventorsMin-Goo Kang, Ki-Hwan Kim
Life of this patent
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Abstract
A touch panel device which is adapted for varying resistance values between the electrodes is disclosed. The touch panel device has a upper conductive layer formed on the top plate, having a pair of first electrodes, a lower conductive layer formed on the base plate, having a pair of second electrodes and a plurality of dot spacers, located in between said upper conductive layer and lower conductive layer. At least either one of the upper conductive layer and the lower conductive layer has a plurality of through holes formed thereon, so that a resistance between the electrodes can be varied by varying dimensions of the through holes and intervals between the through holes.
Claims6
A touch panel comprising:
- a top plate and a base plate;
- a upper conductive layer, formed on the top plate, having a pair of first electrodes disposed on its edges to be opposed in a first direction, the first electrodes being applied by a driving voltage;
- a lower conductive layer, formed on the base plate, having a pair of second electrodes disposed on its edges to be opposed in a second direction normal to the first direction, the second electrodes being applied by a driving voltage;
- a plurality of dot spacers, located in between said upper conductive layer and lower conductive layer, the upper conductive layer and the lower conductive layer facing each other with a certain specified clearance therebetween, the dot spacers made of an elastic material;
- and
- a controller for detecting a coordinate signal of a position on which the upper conductive layer and the lower conductive layer are contacted with each other by an external pressure,
- wherein a plurality of through holes are formed on at least either one of the upper conductive layer and the lower conductive layer, so that a resistance between the electrodes can be varied by varying dimensions of the through holes and intervals between the through holes.
Dependencies are inferred from the claim text.