Fuji Electric Co., Ltd.

Fuji Electronic Co., Ltd.

Yoshimasa Tomiuchi

Yotaro Shiraishi

Masami Kuroda

Noboru Furusho

Sumitaka Nogami

Masayo Amano

Yoshimasa Hattori

Ryoji Kobayashi

Katsuhiro Sato

Michihiro Kitazawa

Osamu Nabeta

Kenji Kawate

Ayako Tutui

A high boiling-point solvent, included in a fluorescent color conversion film, suppresses degradation in color conversion characteristic by compensating for a decrease in dielectric constant due to solidification of the matrix system. The fluorescent color conversion film of the present invention includes, in addition to the high boiling point solvent, organic fluorescent dyes, which absorb light in a near ultraviolet to visible light region and emit visible light of a different wavelength, and a matrix resin bearing the organic fluorescent dye. The high boiling point solvent has a boiling point of 150&deg; C. or higher and a vapor pressure of 5 mmHg or lower at the temperature of 20&deg; C. The fluorescent color conversion film is useful in a fluorescent color conversion filter, which itself is useful in light-emitting devices, such as self-emitting multi-colored- or full colored-displays, display panels and backlights.

Fluorescent color conversion film, fluorescent color conversion filter using the conversion film, and organic light-emitting device equipped with the conversion filter

Fluorescent color conversion film, fluorescent color conversion filter using the same, and an organic light-emitting device equipped with this fluorescent color conversion filter

A fluorescent conversion filter suppresses decomposition and quenching of fluorescent dyes or pigments. An organic light-emitting device may be equipped with such a fluorescent conversion filter. The fluorescent conversion filter is formed by coating with a coating material, followed by patterning by photolithography. The coating material consists of a mixture of organic fluorescent dye or pigment that absorbs light in the ultraviolet to visible light region. The coating also includes a photo-setting or photo-and-thermo-setting resin containing a photopolymerizaion initiator of a hydrogen abstraction type having a benzophenone skeleton within the molecule. As a result, an organic light-emitting device is produced by combining the a fluorescent conversion filter with an organic light-emitting element.

Fluorescent conversion filter and organic light-emitting device equipped with the fluorescent conversion filter

An electrophotographic photoconductor contains at least a furan derivate or a thiophene derivate as the charge transport agent in a photoconductive layer thereof.

Electrophotographic photoconductor

A photoconductor for electrophotography includes a distyryl compound of the general formula (I) as a charge generation material and a bisazo compound of the general formula (II) as a charge transport material. ##STR1##

Photoconductor for electrophotography containing distyryl compound

An electrophotographic photoreceptor has a conductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer contains one compound which is selected from the group of the compounds represented by the formulae (I), (II), (III), (IV), and (V). Therefore, the electrophotographic photoreceptor shows stable characteristics, good durability, and long span of life in repeat use.

Electrophotographic photoreceptors with anti-oxidizing agents

Growing community of inventors

Kanagawa, Japan

Yoshimasa Tomiuchi