Alps Alpine Co., Ltd.

Manabu Yazawa

Tomoyuki Yamai

Yuta Hiraki

Yasuyuki Kitamura

Keita Tashiro

Hideaki Takahashi

Eiichi Komai

Mitsuo Bito

Setsuo Ishibashi

Sota Takahashi

Ken Yamamura

Makoto Sasaki

Tomoya Kuwabara

A capacitive sensor has a structure in which first transparent electrode portions and second transparent electrode portions formed from crystalline indium tin oxide (ITO) are provided on a base material by patterning. A bridge wiring portion formed from amorphous indium zinc oxide (IZO) is provided on each two adjacent first transparent electrode portions and a link continuous to them, with an insulating layer intervening between the bridge wiring portion and the two first transparent electrode portions and link. These two adjacent second transparent electrode portions are electrically connected together by the bridge wiring portion. The thickness of the second transparent electrode portion TE and the thickness of the bridge wiring portion TB satisfy the following expressions: 0.28&#xd7;TE+83 nm&#x2264;TB&#x2264;0.69&#xd7;TE+105 nm; and 30 nm&#x2264;TE&#x2264;50 nm.

Capacitive sensor and input device

An input device includes a plurality of first transparent electrodes, a plurality of second transparent electrodes, coupling portions each electrically connecting two adjacent second transparent electrodes of the second transparent electrodes, and bridge portions each electrically connecting two adjacent first transparent electrodes of the first transparent electrodes. The first and second transparent electrodes are arranged in directions orthogonal to each other and are formed of a material containing conductive nanowires. The bridge portions each include a bridge wiring part, an insulating layer, and a buffer layer. The buffer layer is disposed between each of the coupling portions and the insulating layer. The buffer layer is formed of a light-transmissive, inorganic oxide-based material.

Input device having transparent electrodes containing nanowires and display apparatus with input device

A transparent electrode member has a transparent electrode layer formed of a dispersion layer which includes a matrix and conductive nanowires dispersed therein to provide an optical adjustment region including a conductive portion having a first dispersion density and an optical adjustment portion having a second dispersion density smaller than the first dispersion density. The transparent electrode layer includes a plurality of first and second electrodes each having the optical adjustment region, and a first wire provided between and electrically connecting two adjacent first electrodes. A region of an insulating layer is formed between the first wire and the second electrodes, and between the first electrodes and the second electrodes. The first wire and a part of the first electrodes in a vicinity of the first wire are formed of a non-adjustment region of the dispersion layer including the conductive portion while lacking the optical adjustment portion.

Transparent electrode member, method of manufacturing the same, and capacitive sensor that uses transparent electrode member

A capacitive sensor has: a base material; a plurality of first transparent electrodes arranged along a first direction on one main surface of the base material; a plurality of second transparent electrodes arranged along a second direction that closes the first direction, the second transparent electrode including conductive nanowires; a link that electrically connects two adjacent first transparent electrodes to each other; a bridge wiring part provided at a portion where the bridge wiring part closes the link, the bridge wiring part electrically connecting two adjacent second transparent electrodes to each other and including an amorphous oxide material; and a reflection reduction layer that has a refractive index higher than the refractive index of the second transparent electrode and lower than the refractive index of the bridge wiring part.

Capacitive sensor

A transparent electrode member has a transparent base material, a transparent electrode placed on the first surface of the base material, and an insulating layer placed in an insulating region positioned in at least part of the circumference of a region in which the transparent electrode is placed, when viewed from the direction of the normal to the first surface. The transparent electrode has a dispersion layer that includes a matrix composed of an insulating material and also includes conductive nanowires dispersed in the matrix. The transparent electrode also has a region composed of the conductive part and regions composed of optical adjustment parts when viewed from the direction of the normal to the first surface. The conductive region has conductivity higher than the optical adjustment part. In the dispersion layer, the dispersion density of conductive nanowires in the optical adjustment part is lower than that in the conductive part.

A capacitive sensor includes first transparent electrodes arranged in a first direction; second transparent electrodes arranged in a second direction intersecting the first direction and containing conductive nanowires; coupling parts provided integrally with the first transparent electrodes; and bridge wiring parts provided independently of the second transparent electrodes so as to intersect the coupling parts and electrically connecting two adjacent second transparent electrodes to each other. Each of the bridge wiring parts is composed of contact portions in contact with the second transparent electrodes and a bridge portion provided continuously with the contact portions and separated from the second transparent electrodes. Each of the contact portions has a multilayer structure, and a layer including a portion in contact with the second transparent electrode is formed of a zinc-oxide-based material. A surface of the bridge portion located farther from the substrate is formed of an amorphous-oxide-based material.

Capacitive sensor and device

A capacitive sensor includes a base material provided with a pattern of a light-transmissive conductive film. The light-transmissive conductive film contains metal nanowires. The pattern includes a detection pattern of a plurality of detection electrodes arranged with intervals, a plurality of lead-out wirings linearly extending in a first direction from corresponding ones of the detection electrodes, and a resistance-setting section connected to at least any one of the lead-out wirings and including a portion extending in a direction not parallel to the first direction.

A capacitive sensor includes a base material provided with a pattern of a light-transmissive conductive film. The light-transmissive conductive film contains metal nanowires. The pattern includes a detection pattern formed of a plurality of detection electrodes arranged with intervals and a plurality of lead-out wirings linearly extending in a first direction from the corresponding ones of the plurality of the detection electrodes. At least one of the detection electrodes of the detection pattern includes a current path-setting section for elongating the linear path length of the current from the detection electrode toward the lead-out wiring.

Growing community of inventors

Niigata-ken, Japan

Manabu Yazawa