Fujitsu Corporation

Shintaro Kisumi

Tetsuya Kobayashi

Toyoshi Kawada

Hideaki Takizawa

Kazuhiro Takahara

Tadashi Hasegawa

Shizuo Andoh

Masayuki Wakitani

Takayuki Hoshiya

Seii Sato

Shoshin Miura

An EL device having an electrode arrangement including first electrodes and at least one row of second electrodes intersecting the first electrodes and energized by a combination of the first and second electrodes. The second electrodes are divided into a plurality of sub-electrode portions. The electrode arrangement is such that the first electrodes each comprise a plurality of segments that are commonly-connected and intersect different sub-electrode portions. Another electrode arrangement is such that the first electrodes are arranged in a belt form and intersect different sub-electrodes portions in a meander manner. The EL device can be applied to an electrophotographic printing system as an optical system for forming a latent image. EL elements are repeatedly energized with the same data to give a sufficient intensity of light on a light sensitive medium, and deenergized for a time in which the intensity is decreased to a low level.

Electro luminescence device and electrophotographic printing system

Growing community of inventors

Zama, Japan

Shintaro Kisumi