STYLUS PEN AND TOUCH PANEL
First Claim
1. A stylus pen for making an input to a position on a touch panel, the stylus pen comprising:
- a conductive tip configured to receive an electric field transmission signal from at least one electrode of the touch panel;
a circuit portion configured to generate an electric field receiving signal corresponding to the received electric field transmission signal;
a variable capacitor between the conductive tip and the circuit portion, and configured to vary the electric field receiving signal depending on a writing pressure applied to the conductive tip; and
a conductive body outside the variable capacitor and electrically connecting the conductive tip and the circuit portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A stylus pen and a touch panel are provided. The stylus pen includes: a conductive tip configured to receive an electric field transmission signal from at least one electrode of the touch panel; a circuit portion configured to generate an electric field receiving signal corresponding to the received electric field transmission signal; a variable capacitor between the conductive tip and the circuit portion, and configured to vary the electric field receiving signal depending on a writing pressure applied to the conductive tip; and a conductive body outside the variable capacitor and electrically connecting the conductive tip and the circuit portion.
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Citations
25 Claims
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1. A stylus pen for making an input to a position on a touch panel, the stylus pen comprising:
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a conductive tip configured to receive an electric field transmission signal from at least one electrode of the touch panel; a circuit portion configured to generate an electric field receiving signal corresponding to the received electric field transmission signal; a variable capacitor between the conductive tip and the circuit portion, and configured to vary the electric field receiving signal depending on a writing pressure applied to the conductive tip; and a conductive body outside the variable capacitor and electrically connecting the conductive tip and the circuit portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A stylus pen comprises:
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a conductive tip projecting from an end of the stylus pen; a dielectric comprising a first surface and a second surface positioned opposite to the first surface; a first electrode in contact with the first surface of the dielectric; a conductive variable electrode configured such that a contact area between the conductive variable electrode and the second surface of the dielectric is varied depending on a pressure applied through the conductive tip; and a conductive body outside the dielectric, electrically connecting the conductive tip and the conductive variable electrode, and isolated from the dielectric and the first electrode. - View Dependent Claims (22)
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23. A touch panel for determining an input position of an input object, the touch panel comprising:
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at least one electrode; and a controller configured to control an electric field transmission signal generated in the at least one electrode to be transmitted to the input object, and to control to receive, from the input object via the at least one electrode, an electric field receiving signal corresponding to the electric field transmission signal. - View Dependent Claims (24, 25)
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Specification