POSITION INDICATOR, VARIABLE CAPACITOR AND INPUT DEVICE
First Claim
1. A position indicator comprising:
- a substantially elongated case;
a rod partially housed in the case and having a first end protruding outside the case and a second end extending inside the case; and
a variable capacitor housed inside the case and configured to change its capacitance when an external force is applied through the rod to the variable capacitor,wherein the variable capacitor includes;
at least one dielectric having a first surface and a second surface opposite the first surface;
an electrode provided on the first surface of the dielectric;
a conductive member attached to the second end of the rod such that it faces the second surface of the dielectric; and
a conductive portion provided on the second surface of the dielectric, the conductive portion being electrically connectable to the conductive member,wherein the conductive member is configured to be elastically deformed when pressed against the second surface by the external force applied through the rod, such that the capacitance of the variable capacitor changes according to a change of the external force.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable capacitor of a position indicator includes a dielectric, an electrode, a conductive member and a conductive portion. The dielectric has an upper surface and a lower surface opposite the upper surface. The electrode is provided on the upper surface of the dielectric. The conductive member is arranged so as to face the lower surface of the dielectric. The conductive portion is provided on the lower surface of the dielectric and is arranged so as to be electrically connectable to the conductive member. The conductive member is adapted to be elastically deformed when pressed against the lower surface by an external force, such that the capacitance of the variable capacitor changes according to a change of the external force.
33 Citations
20 Claims
-
1. A position indicator comprising:
-
a substantially elongated case; a rod partially housed in the case and having a first end protruding outside the case and a second end extending inside the case; and a variable capacitor housed inside the case and configured to change its capacitance when an external force is applied through the rod to the variable capacitor, wherein the variable capacitor includes; at least one dielectric having a first surface and a second surface opposite the first surface; an electrode provided on the first surface of the dielectric; a conductive member attached to the second end of the rod such that it faces the second surface of the dielectric; and a conductive portion provided on the second surface of the dielectric, the conductive portion being electrically connectable to the conductive member, wherein the conductive member is configured to be elastically deformed when pressed against the second surface by the external force applied through the rod, such that the capacitance of the variable capacitor changes according to a change of the external force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A variable capacitor comprising:
-
at least one dielectric having a first surface and a second surface opposite the first surface; an electrode provided on the first surface of the dielectric; a conductive member facing the second surface of the dielectric; and a conductive portion provided on the second surface of the dielectric, the conductive portion being electrically connectable to the conductive member, wherein the conductive member is configured to be elastically deformed when pressed against the second surface by an external force, such that the capacitance of the variable capacitor changes according to a change of the external force. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. An input device comprising:
-
a position indicator having a case;
a rod housed in the case, a first end of the rod protruding outside the case and a second end extending inside the case; and
a variable capacitor housed inside the case and configured to change its capacitance when an external force is applied through the rod to the variable capacitor; anda position detecting device configured to detect a position of the position indicator indicated by the first end of the rod and having an input surface on which the first end of the rod indicates said position, wherein the variable capacitor includes; at least one dielectric having a first surface and a second surface opposite the first surface; an electrode provided on the first surface of the dielectric; a conductive member attached to the second end of the rod such that it faces the second surface of the dielectric; and a conductive portion provided on the second surface of the dielectric, the conductive portion being electrically connectable to the conductive member, wherein the conductive member is configured to be elastically deformed when pressed against the second surface by the external force applied through the rod, such that the capacitance of the variable capacitor changes according to a change of the external force. - View Dependent Claims (20)
-
Specification