TOUCH PANEL SYSTEM AND ELECTRONIC DEVICE
First Claim
Patent Images
1. A touch panel system including:
- a stylus pen for touching a touch panel which has M first signal lines (M is plural), K second signal lines (K is plural) which intersect with the M first signal lines, and (M×
K) electrostatic capacitances formed at respective intersections of the first signal lines and the second signal lines; and
a touch panel controller that detects a position of the stylus pen, whereinthe stylus pen has;
a grip portion to be gripped by a user;
a pen point that touches the touch panel;
a ground having a ground potential; and
a changeover switch that connects the grip portion to either the pen point or the ground.
1 Assignment
0 Petitions
Accused Products
Abstract
For detecting a signal based on driving of a pen point of a stylus pen satisfactorily, a stylus pen (15) includes a changeover switch (34) having a grip portion terminal (35) of a grip portion (28), a pen point terminal (36) of a pen point (38), and a ground terminal (37) of a ground, the changeover switch (34) switching connection of the grip portion terminal (35) to either the pen point terminal (36) or the ground terminal (37).
8 Citations
5 Claims
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1. A touch panel system including:
- a stylus pen for touching a touch panel which has M first signal lines (M is plural), K second signal lines (K is plural) which intersect with the M first signal lines, and (M×
K) electrostatic capacitances formed at respective intersections of the first signal lines and the second signal lines; anda touch panel controller that detects a position of the stylus pen, wherein the stylus pen has; a grip portion to be gripped by a user; a pen point that touches the touch panel; a ground having a ground potential; and a changeover switch that connects the grip portion to either the pen point or the ground. - View Dependent Claims (2, 3, 5)
- a stylus pen for touching a touch panel which has M first signal lines (M is plural), K second signal lines (K is plural) which intersect with the M first signal lines, and (M×
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4. A touch panel system including:
- a plurality of stylus pens for touching a touch panel which has M first signal lines (M is plural), K second signal lines (K is plural) which intersect with the M first signal lines, and (M×
K) electrostatic capacitances formed at respective intersections of the first signal lines and the second signal lines; anda touch panel controller that detects a position of each of the stylus pens, wherein each of the stylus pens has; a grip portion to be gripped by a user; a pen point that touches the touch panel; a ground having a ground potential; and a changeover switch that connects the grip portion to either the pen point or the ground.
- a plurality of stylus pens for touching a touch panel which has M first signal lines (M is plural), K second signal lines (K is plural) which intersect with the M first signal lines, and (M×
Specification