Alps Electric Co., Ltd.

Hideto Sasagawa

Takeshi Watanabe

Takayuki Ito

Katsunori Sawai

A coordinate input device in which a first electrode plate having a resistor layer and a pair of electrodes in contact with the resistor layer formed successively on a substrate along two opposing sides of a film substrate with the top end of a wiring pattern led out of the electrode to the vicinity of other sides being formed as a transfer forming portion, and a second electrode plate having a resistor layer, a pair of electrodes and wiring patterns formed successively on a substrate, are joined with the respective resistor layers opposed to each other and the electrodes being arranged at a right angle with each other, wherein bridge portions are formed near the transfer portions of the first electrode plate, whereby the stress exerting on the transfer portion caused by expansion or shrinkage of the coordinate input device due to the change of the circumstantial temperature is reduced to prevent delamination of transfer portion and improve the reliability.

Coordinate input device for preventing delamination of transfer portion

Disclosed is a liquid crystal display device in which the entire effective display region of a liquid crystal display element is sufficiently illuminated by a lamp. A reflecting member is provided on an end face of a lower substrate of a tablet opposite from an end face opposing a lamp. A liquid crystal display element disposed below the tablet is illuminated with incident light from the lamp that enters the lower substrate from the lamp-side end face, and reflected light obtained by reflecting the incident light from the reflecting member.

Liquid crystal display device

A co-ordinates input device having a transparent substrate member is composed of: a transparent substrate; an ITO film formed on a surface of the transparent substrate; a pair of electrodes formed at a given distance from each other on the ITO film; an operation region formed between the pair of electrodes; and lead electrodes, extending from the pair of electrodes, formed on the ITO film; in which at least one of the lead electrodes extending from the pair of electrodes is formed on the ITO film on a side of the operation region, and between the lead electrode and the operation region, a groove is formed in the ITO film alone or in the ITO film and continuously extending into the transparent substrate.

Co-ordinates input device and a method for producing the same

A tablet that hardly causes the fluctuation in the sheet resistance on a film substrate despite the small size of the tablet. The edge of one side of the film substrate requiring a notch for connector insertion are provided with other notches having the same depth as that of the notch for connector insertion, thereby notching most of the edge to the same depth.

Growing community of inventors

Fukushima-ken, Japan

Hideto Sasagawa