Abstract:
There is provided a spacerless input device that suppresses reflection at an interface, prevents generation of Newton's rings, improves visuality, does not operate erroneously even with no provision of a dot spacer, and has a pressure sensitive function even responsive to input with a solid matter. In an input device of a resistive film type accepting multiple touches, a pressure-sensitive conductive layer and an intermediate layer are filled in a gap between a surface provided with an upper transparent electrode group of an upper transparent electrode base member and a surface provided with a lower transparent electrode group of a lower transparent electrode base member.
Abstract:
PROBLEM TO BE SOLVED: To appropriately detect pressing to a piezoelectric sheet and accurately measure a pressing force.SOLUTION: A pressure detection device 1, 41 includes: a piezoelectric sheet 3; a piezoelectric signal detection section 5; a touch detection section 7; and a control section 9. The piezoelectric sheet 3 generates a pressure signal according to a given load. The piezoelectric signal detection section 5 detects a piezoelectric signal generated in the piezoelectric sheet 3. The touch detection section 7 detects contact to the piezoelectric sheet 3. The control section 9 makes it impossible to detect the piezoelectric signal in the piezoelectric signal detection section 5 when the touch detection section 7 does not detect the contact to the piezoelectric sheet 3. The control section 9 makes it possible to detect the piezoelectric signal in the piezoelectric signal detection section 5 when the touch detection section 7 detects the contact to the piezoelectric sheet 3.
Abstract:
PROBLEM TO BE SOLVED: To reduce malfunction of a touch sensor with a vibration function.SOLUTION: A haptics signal generation unit 27 generates a haptics signal that vibrates a resistance film type touch panel 7 by a vibration element 9. A signal conversion unit 25 converts a voltage detected according to pressure points of the resistance film type touch panel 7 into coordinates of the pressure points of the resistance film type touch panel 7. A coordinate acquisition unit 29 acquires the coordinates of the pressure points of the resistance film type touch panel 7 from the signal conversion unit 25 at a predetermined sampling period Ts. A coordinate storage unit 31 stores the coordinates of the pressure points of the resistance film type touch panel 7 acquired by the coordinate acquisition unit 29. A coordinate determination unit 33, from among the coordinates of the pressure points stored in the coordinate storage unit 31, when the coordinates of the resistance film type touch panel 7 when not being pressed is zero coordinates, takes a maximum value as the coordinates of the pressure point. The coordinate determination unit 33, when the coordinates of the resistance film type touch panel 7 when not being pressed is the maximum value, takes a minimum value as the coordinates of the pressure point.
Abstract:
PROBLEM TO BE SOLVED: To provide a multilayered film that has superior surface hardness, transparency and toughness, and has small thermal shrinkage.SOLUTION: The multilayered film comprises: a layer (A layer) made of a polycarbonate resin having a viscosity average molecular weight of 20,000 or more; and layers (B-1 layer and B-2 layer) made of an acrylic resin, which are stacked on both faces of the A layer. The whole thickness of the multilayered film is 50-200 μm, and a thickness of the A layer occupies 5%-30% in the whole thickness.
Abstract:
PROBLEM TO BE SOLVED: To provide a touch panel comprising a pressure detection function which suppresses thickness and is capable of suppressing variation in sensitivity.SOLUTION: On a lower surface of an upper transparent substrate, a plurality of upper transparent electrodes are provided in a striped manner and on an upper surface of a lower transparent substrate, a plurality of lower transparent electrodes are provided in a striped manner across the upper transparent electrodes. A gap forming member is provided in an area where the upper transparent substrate and the lower transparent substrate are opposed, in such a manner as to form a gap between the upper transparent electrodes and the lower transparent electrodes. A transparent pressure-sensitive ink member is provided to cover at least either the upper transparent electrodes or the lower transparent electrodes. When external force is applied in a thickness direction of the upper transparent substrate, the transparent pressure-sensitive ink member is brought into contact with both the upper transparent electrodes and the lower transparent electrodes to conduct the both.