Fujitsu Component Limited

Fujitsu Takamisawa Component Limited

Koichi Kondoh

Takashi Nakajima

Nobuyoshi Shimizu

Norio Endo

Masanobu Hayama

Mitsuhiro Sekizawa

Shozo Furukawa

Daisuke Ichikawa

Kazuyuki Yoshifusa

Genichi Matsuda

Shiro Hirota

Chiaki Maeno

A position detecting method for a touchscreen panel includes the steps of (a) determining the presence or absence of contact with the touchscreen panel on a conductive film divided into multiple conductive regions; (b) measuring a time after the detection of the absence of the contact and determining whether the measured time is less than a predetermined time if step (a) determines the absence of the contact; and (c) determining the continuance of the contact if the measured time is less than the predetermined time.

Position detecting method for touchscreen panel, touchscreen panel, and electronic apparatus

In a coordinate detection apparatus, a resistance-film is formed on a substrate made of an insulating material. A common electrode applies a voltage to the resistance-film, the common electrode extending along a plurality of a resistance-film removal areas formed by removing portions of the resistance-film. A voltage application part applies the voltage to the common electrode. The voltage is applied from the voltage application part to the resistance-film through the common electrode to generate a potential distribution in the resistance-film. A coordinate position of a contact position at which the resistance-film is contacted is detected by detecting a potential of the resistance-film at the contact position.

Coordinate detection apparatus

A touch panel includes a first electrode substrate including a first substrate and a first conductive film formed on the first substrate, and a second electrode substrate including a second substrate and a second conductive film formed on the second substrate to face the first conductive film. A part or the entirety of the first conductive film is divided into plural conductive areas.

Touch panel

Disclosed is a touch panel including a first electrode substrate including a first conductive layer; and a second electrode substrate including a second conductive layer and being stacked with the first electrode substrate such that the first conductive layer and the second conductive layer face each other. The first conductive layer is composed of a first line of conductive areas and a second line of conductive areas adjacent to the first line where each of the first and the second lines includes an odd number greater than or equal to three of the conductive areas aligned in a second direction, and the conductive areas positioned in the middle of the first line and the second line are respectively connected with extracting areas extending toward different edges in the second direction.

A coordinate detecting device includes a resistive film formed on a substrate and a common electrode for applying a voltage to the resistive film, wherein a potential distribution is created in the resistive film, an electric potential of the resistive film at a contact position is detected, and a position of the contact position of the resistive film is detected. In a manufacturing apparatus, a laser light source irradiates laser light to remove a part of the resistive film to form a resistive film removed part, an optical system converges the laser light, a plurality of probes measure electric potentials of a surface of the resistive film with the common electrode providing the voltage to the resistive film, an X-Y table moves the substrate at least two-dimensionally, and a control part controls the X-Y table and the laser light source.

Manufacturing apparatus of coordinate detecting device

A touchscreen panel includes an upper substrate having a first transparent conductor layer provided on a first base layer, and a lower substrate having a second transparent conductor layer provided on a second base layer. The first and second transparent conductor layers oppose each other via a spacer and make contact when the first base layer is pressed. The first transparent conductor layer is segmented into a plurality of conductive regions that are electrically insulated from each other.

Method of fabricating touchscreen panel by segmenting transparent conductor layer

Touchscreen panel, electronic apparatus and method of fabricating touchscreen panel

A coordinate detecting device includes a resistive film formed over a substrate; and a common electrode formed over the resistive film for applying a voltage to the resistive film. The coordinate detecting device generates potential distribution in the resistive film by applying the voltage to the resistive film from the common electrode and detects a coordinate of a contact position of the resistive film by detecting a potential of the contact position of the resistive film. The substrate is formed of an insulator in a square shape. The common electrode is formed along an edge part of the substrate. The resistive film under the common electrode has one or more areas where the resistive film does not exist. An L-shaped resistive film absent area where the resistive film does not exist is provided in one or more corners of the substrate and on the same side of the common electrode as a side where a center of the substrate is situated.

Coordinate detecting device

A method of manufacturing a coordinate detector having a resistive film and a common electrode for applying a voltage to the resistive film is disclosed that includes the steps of (a) applying a photoresist onto the resistive film formed on a substrate formed of an insulator; (b) forming a resist pattern on the resistive film by exposing the applied photoresist to light through a predetermined mask and subsequently developing the applied photoresist; (c) forming a resistive film removal region by removing a portion of the resistive film without the resist pattern; (d) removing the resist pattern after step (c); and (e) forming the common electrode over the resistive film removal region after step (d).

Method of manufacturing a coordinate detector

A manufacturing method of a coordinate position detecting device includes the steps of forming the common electrode on the resistive film of tour sides of the substrate having a rectangular-shaped configuration; measuring the electric potential of the resistive film by plural probes contacting a surface of the resistive film where the electric potential is supplied from the common electrode to the resistive film; calculating a resistive film removing area, based on a value of a measured electric potential, by a calculating part so that the electric potential distribution of the resistive film is made uniform; and removing the resistive film in the resistive film removing area calculated by the calculating part, by a laser light.

Manufacturing method of coordinate position detecting device

A touch panel includes a lower conductive film, four electrodes disposed in edge portions of four sides of the lower conductive film, and an upper conductive film disposed over the lower conductive film so that the upper and lower conductive films are opposed to each other, to detect an electric potential in the lower conductive film when the upper conductive film is in contact with the lower conductive film. The upper conductive film includes split portions containing no transparent conductive material and split conductive portions divided by the split portions. The touch panel is arranged to detect an electric potential of each of contact points in the split conductive portions when the upper and lower conductive films are brought in contact with each other at the contact points, and detect respective coordinates of the contact points based on the electrical potentials.

Touch panel and coordinates detecting method using touch panel

A method for manufacturing a coordinate detector having a resistive film formed on a substrate formed of an insulating material and a common electrode for applying a voltage to the resistive film. The substrate includes a quadrangular shape. The method includes the steps of a) forming first resistive film removal regions by removing predetermined first regions of the resistive film provided along a peripheral edge of the substrate, b) forming the common electrode on the first resistive film removal regions, c) applying voltage to the resistive film, d) measuring an electric potential of the resistive film, e) calculating second resistive film removal region data according to the measured electric potential, and f) forming second resistive film removal regions by irradiating a laser beam to predetermined second regions of the resistive film according to the calculated second resistive film removal region data.

Growing community of inventors

Shinagawa, Japan

Koichi Kondoh