Sharp Kabushiki Kaisha Corporation

Ford Motor Company Limited

Hiroshi Suzuki

Hiroyuki Katayama

Akiyoshi Fujii

Masato Kawanishi

Toshitaka Tamura

Yoichi Yamamoto

Yasuhiro Yoshida

Mitsuhiko Yoshikawa

Takatoshi Mizoguchi

Tohru Kira

Takayuki Taminaga

Tomohisa Komoda

Ryoji Minakata

Hiromi Nishino

Katsuyasu Deguchi

Atsuo Mukai

In an image display device, how R, G, and B light is emitted to display an image on a display panel is measured with a sensor, and, according to the measurement value obtained from the sensor, the power with which to drive a light source that supplies light needed for the display operation of the display panel is varied so that the brightness or chromaticity of the display panel is corrected.

Image processing device, and image display device provided with such an image processing device

A magnetoresistance effect type thin film magnetic head includes a MR element having the electrical resistance changed according to a change in an applied signal magnetic field, a lead electrode for detecting a voltage change generated across the ends of the MR element in which a change in electrical resistance is generated, and high coercive force films for applying a weak magnetic field to the MR element. The high coercive force films are arranged in the proximity of the ends of the MR element and at a predetermined position between the ends. According to this structure, a weak magnetic field is applied in uniform over the entire MR element to facilitate unification of magnetic domain of the MR element even in the case of a long MR element. Therefore, unification of magnetic domain can easily be carried out over the entire region of the MR element without increasing the film thickness of the high coercive force film even in a case of a wide track width, resulting in a thin film magnetic head with no Barkhausen noise generation.

Magnetoresistance effect type thin film magnetic head using high

A thermal head for a thermal recording machine including an insulating substrate which is composed of a printed circuit board made of a heat resistant resin and covered with a copper film, a plurality of thermal resistors disposed on the insulating substrate in the direction corresponding to the scanning, discrete electrodes electrically connecting first ends of the thermal resistors to a control element, a common electrode electrically connecting the other ends of the thermal resistors together, a heat releasing layer formed of the copper film of the insulating substrate on the lower portions of the thermal resistors, and a thermal accumulating layer of a polyimide resin covering the heat releasing layer.

Thermal head for thermal recording machine

A method of manufacturing a thermal printing head includes forming a layer of polyimide resin precursor on a heat-resistant resin substrate on which two parallel common electrodes and a large number of lead electrodes are formed beforehand in such a manner that the lead electrodes are separated from the common electrodes by a predetermined distance and are disposed on one side of the common electrodes in a vertical direction. It further includes performing a first etching on the layer of polyimide resin precursor such that a predetermined pattern is formed. Heat treatment is then performed on the layer of polyimide resin precursor to simultaneously form, between the lead electrodes and the common electrode disposed close to the lead electrodes, a polyimide resin heat accumulating layer as a base for a heating resistor as well as a polyimide resin insulating layer capable of electrically insulating a jumper wire connecting the common electrode disposed remote from the lead electrodes to the heating resistor on the common electrode disposed close to the lead electrodes. The heating resistor is then formed on the polyimide resin heat accumulating layer. Finally, a wire connecting the heating resistor to the two common electrodes and to the plurality of lead electrodes is formed.

Thermal printing head manufacturing method

Growing community of inventors

Nara, Japan

Hiroshi Suzuki