Display device with capacitive touch sensor with slit formed in a surface of a detecting electrode opposed to a scanning electrode to realize detection with high accuracy
First Claim
Patent Images
1. An information input device comprising:
- a touch panel having a touch sensor that detects a position at which a sensing object is in proximity to a sensing surface, the touch sensor including (i) a plurality of scanning electrodes extending along a first direction, (ii) a detecting electrode that is opposed to the scanning electrodes and extends along a second direction orthogonal to and intersecting the first direction, and (iii) a dielectric substance between the scanning electrodes and the detecting electrode, the touch sensor being a capacitive sensor with an electrostatic capacitance that changes when the sensing object is in proximity to the detecting electrode; and
a plurality of slits formed within the detecting electrode, the slits including slits of uniform shape and size,wherein,the ends of the slits are closed by the detecting electrode,the detecting electrode has a substantially elongated rectangular shape with a length in the second direction greater than a width in the first direction, and the width is constant,each slit extends most of the length of the detecting electrode,each slit of the detecting electrode has a first edge and a second edge and extends along the second direction from the first edge to the second edge,a distance between the first edge and the second edge is substantially the same as a distance between a first side and a second side, the first side extending along the first direction and being an outer side of one of the two outermost scanning electrodes, and the second side extending along the first direction and being an outer side of the other outermost scanning electrode, andeach scanning electrode has a substantially elongated shape with a length greater than a width.
0 Assignments
0 Petitions
Accused Products
Abstract
An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning electrode.
44 Citations
10 Claims
-
1. An information input device comprising:
-
a touch panel having a touch sensor that detects a position at which a sensing object is in proximity to a sensing surface, the touch sensor including (i) a plurality of scanning electrodes extending along a first direction, (ii) a detecting electrode that is opposed to the scanning electrodes and extends along a second direction orthogonal to and intersecting the first direction, and (iii) a dielectric substance between the scanning electrodes and the detecting electrode, the touch sensor being a capacitive sensor with an electrostatic capacitance that changes when the sensing object is in proximity to the detecting electrode; and a plurality of slits formed within the detecting electrode, the slits including slits of uniform shape and size, wherein, the ends of the slits are closed by the detecting electrode, the detecting electrode has a substantially elongated rectangular shape with a length in the second direction greater than a width in the first direction, and the width is constant, each slit extends most of the length of the detecting electrode, each slit of the detecting electrode has a first edge and a second edge and extends along the second direction from the first edge to the second edge, a distance between the first edge and the second edge is substantially the same as a distance between a first side and a second side, the first side extending along the first direction and being an outer side of one of the two outermost scanning electrodes, and the second side extending along the first direction and being an outer side of the other outermost scanning electrode, and each scanning electrode has a substantially elongated shape with a length greater than a width. - View Dependent Claims (2, 3, 4)
-
-
5. A display device comprising:
-
a display panel having a touch sensor that detects a position to which a sensing object is in proximity with respect to a display surface for displaying an image, the touch sensor including (i) a plurality of scanning electrodes extending along a first direction, (ii) a detecting electrode that is opposed to the scanning electrode and extends along a second direction orthogonal to and intersecting the first direction, and (iii) a dielectric substance between the scanning electrodes and the detecting electrode, the touch sensor being a capacitive sensor with an electrostatic capacitance that changes when the sensing object is in proximity to the detecting electrode; and a plurality of slits formed within the detecting electrode, the slits including slits of uniform shape and size, wherein, the ends of the slits are closed by the detecting electrode, the detecting electrode has a substantially elongated rectangular shape with a length in the second direction greater than a width in the first direction, and the width is constant, each slit extends most of the length of the detecting electrode, each slit of the detecting electrode has a first edge and a second edge and extends along the second direction from the first edge to the second edge, a distance between the first edge and the second edge is substantially the same as a distance between a first side and a second side, the first side extending along the first direction and being an outer side of one of the two outermost scanning electrodes, and the second side extending along the first direction and being an outer side of the other outermost scanning electrode, and each scanning electrode has a substantially elongated shape with a length greater than a width. - View Dependent Claims (6, 7, 8, 9)
-
-
10. A display device comprising:
-
a display panel having a touch sensor that detects a position to which a sensing object is in proximity with respect to a display surface for displaying an image, the touch sensor including (i) a plurality of scanning electrodes extending along a first direction and (ii) a detecting electrode that is opposed to the display surface and extends along a second direction orthogonal to and intersecting the first direction, and the touch sensor being a capacitive sensor with an electrostatic capacitance that changes when the sensing object is in proximity to the detecting electrode; and a plurality of slits formed within the detecting electrode, wherein, the ends of the slits are closed by the detecting electrode, the detecting electrode has a substantially elongated shape with a length in the second direction greater than a width in the first direction, and the width is constant, each slit extends most of the length of the detecting electrode, each slit of the detecting electrode has a first edge and a second edge and extends along the second direction from the first edge to the second edge, and a distance between the first edge and the second edge is substantially the same as a distance between a first side and a second side, the first side extending along the first direction and being an outer side of one of the two outermost scanning electrodes, and the second side extending along the first direction and being an outer side of the other outermost scanning electrode.
-
Specification