Nissha Printing Co., Ltd.

Yuichiro Takai

Kazuhiro Nishikawa

Junichi Shibata

Yoshihiro Kai

Yuko Endo

Takao Hashimoto

Takahiro Suzuki

Ryomei Omote

Seiko Hirai

Shuzo Okumura

Jun Shimizu

Kazuto Nakamura

Tomohiro Yamaoka

Yoshitaka Yamaoka

Hiroyuki Hoshino

Yohko Imai

Junpei Morita

A pressure detection unit includes a first substrate and a second substrate which are disposed in opposition to each other and subject to load from the outside, a pressure detection portion having a pair of electrodes provided between the first substrate and the second substrate and in the first substrate and the second substrate, and electrically conductive pressure-sensitive ink disposed between the pair of electrodes and having electrical characteristics which varies according to the load, and a load transmission member disposed between the first substrate and the pressure detection portion and/or between the second substrate and the pressure detection portion, the load transmission member transmitting the load to the pressure detection portion in a concentrated manner.

Pressure detection unit

The present invention aims at providing a pressure-sensitive sensor capable of layering a pressure-sensitive layer and electrodes with high productivity, facilitating control of contact between the pressure-sensitive layer and the electrodes by loading, achieving good reproducibility of a resistance value generated by loading between the pressure-sensitive ink layer and the electrodes, and measuring pressure with high accuracy. The pressure-sensitive sensor comprises a pair of electrodesandformed on a substrate film, and a pressure-sensitive ink layerjuxtaposed to the electrodes on the substrate, the pressure-sensitive ink layer being variable in electrical properties in response to an applied pressing force, wherein a portion of the substrate filmhaving the pressure-sensitive ink layerformed thereon is bent inward to allow the pressure-sensitive ink layerto come into contact with the pair of electrodesand

Pressure-sensitive sensor

A pressure sensitive conductive member is arranged in a through hole of a base-material bonding layer so as to be in contact with a peripheral-switch upper electrode and a peripheral-switch lower electrode, and when a force applied to a peripheral switch is transmitted to the pressure sensitive conductive member through an upper electrode base material and the upper electrode, a current flows, so that the upper electrode and the lower electrode are electrically connected.

Protective panel and electronic device

[Subject] To provide a mount structure of a touch input device having a pressure sensitive sensor in which visibility can be prevented from being lowered even when the pressure sensitive sensor is mounted, water-proofness and dust-proofness are excellent, and a pressure can be easily detected with high measurement accuracy. [Solution] According to a mount structure of a touch input device which includes a touch input device having at least a touch panel, and a pressure sensitive sensor attached to a lower surface thereof, and a casing dented to allow the device to be externally fitted in, and having a concave part or an opening part for a display device, and a frame-shaped support part to support a back surface peripheral part of the touch input device, in its bottom surface, the pressure sensitive sensor includes a pressure concentration member laminated and arranged in a dot shape so as to support the pressure sensitive ink member on a back surface, and a frame-shaped gasket is attached between the pressure sensitive sensor and the support part of the casing, in which the gasket does not overlap with the pressure concentration member.

Mount structure of touch input device having pressure sensitive sensor

A multi-touch panel includes a first substrate for receiving coordinate input, a second substrate provided to face the first substrate, a first conductive film formed on the first substrate; and a second conductive film formed on the second substrate. At least one of the first conductive film and the second conductive film is divided into a plurality of strip regions to configure a plurality of strip electrodes. At least one end of each of the strip electrodes has a narrowed width portion, and the strip electrodes have widths different from one another at the narrowed width portion in accordance with lengths of the drawing wires that are connected to the ends provided with the narrowed width portions.

Multi-touch panel including equipotential line distortion corrector

A gap between an upper transparent electrode base member () and a lower transparent electrode base member () is filled with a transparent adhesive layer () as a pressure-sensitive adhesive layer, to eliminate an air layer.

Touch panel and portable device using the same

A gap between an upper transparent electrode base member and a lower transparent electrode base member is filled with a transparent adhesive layer as a pressure-sensitive adhesive layer, to eliminate an air layer.

An electronic device having a protection panel includes: a display device () having a display part (A); a housing () for mounting the display device () therein which has a display window (A) including an opening for allowing the display part (A) to face externally and a supporting portion () in a shape of a frame; a protection panel () fitted into the display window (A), whose back side rim portion is supported by the supporting portion (); and a pressure-sensitive conductive print layer () which is disposed between the protection panel () and the supporting portion () and configured to detect a pressing operation on the protection panel (), and includes a resin having a glass-transition temperature (Tg) in a temperature range higher than room temperature as binder, and a conductive material dispersed therein.

Electronic device having protection panel

An object of the present invention is to provide a touch panel having a press detection function, which makes it possible to suppress degradation of visibility of a display unit of a display device even when mounted on an electronic device, and also to improve a pressure measuring precision. For this purpose, the touch panel of the present invention includes a first substrate, a second substrate disposed oppose to the first substrate, a pair of electrodes disposed on either one of opposed surfaces of the respective substrates or disposed separately on both of the surfaces, pressure sensitive ink members disposed with a gap from at least one of the pair of electrodes, each of the pressure sensitive ink members having an electrical characteristic varied by a pressing force applied thereto, and a gap retaining member for bonding the first and second substrates to each other and for retaining a gap between each of the pressure sensitive inks and at least one of the pair of electrodes, wherein the pair of electrodes are disposed in a frame shape along an edge portion of the first or second substrate, and the pressure sensitive ink members are scattered along the edge portion of the first or second substrate so that, when the first or second substrate is deformed upon an application of an external force, at least one of them is made in contact with both of the pair of electrodes so as to make the two electrodes conductive to each other.

Touch panel having press detection function and pressure sensitive sensor for the touch panel

An electronic apparatus with a protective panel, includes a display devicehaving a display sectionA, an enclosurehaving a display windowA which is open in one direction and mounts therein the display deviceso as to expose the display sectionA to the outside, a protective paneldisposed at the display windowA so as to cover the display sectionA from the outside; and a pressure-sensitive conductive rubberinterposed between a movable portion M including at least the protective panelof the protective paneland the display deviceand a frame-like support portiondefined by a surface of the enclosurewithin the display windowA, so as to prevent intrusion of foreign substance to the interior of the enclosurethrough the display windowA, the rubber detecting a depressing operation on the movable portion M.

Growing community of inventors

Kyoto, Japan

Yuichiro Takai