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

摘要

An information input device includes 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.

主权项

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 scanning electrode, (ii) a detecting electrode opposed to the scanning electrode, and (iii) a dielectric substance between the scanning electrode 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, wherein,
all ends of the slits are closed by the detecting electrode,the detecting electrode has a substantially elongated rectangular shape with a length greater than a width and a constant width in a first direction orthogonal to a second direction along which the length of the detecting electrode extends,each slit extends most of the length of the detecting electrode, andthe scanning electrode has a substantially elongated rectangular shape with a length greater than a width.