Futaba Corporation

Yusuke Yasuoka

Tadashi Mizohata

Yuji Nomura

Toshinori Suzuki

Sadao Takano

Junichiro Kogure

Keita Abe

Mitsuyoshi Nihei

A fluorescent display device includes a housing having with a glass substrate and a circuit board adhered to the inner surface of the glass substrate of the housing. The circuit board includes an anode formed of multiple anode conductors, control elements for controlling the anode conductors and a phosphor layer formed on the anode conductors. The fluorescent display further includes an electron source formed above the anode in the housing, from which electrons are bombarded to the phosphor layer corresponding to the anode conductors selected by the control elements so that a desired display can be obtained. An aluminum thin film with the aluminum area ratio within a range from 30 to 60% is formed on the inner surface of the glass substrate and the circuit board is fixed to the aluminum thin film via a die-bond material.

Fluorescent display device and manufacturing method therefor

A fluorescent display device having a pseudo half mirror formed on a rear surface a face plate thereof and exhibiting a function like a neutral density filter. The face plate is formed on a whole rear surface thereof with an aluminum film including opening portions, non-opening portions and a solid portion. The opening and non-opening portions cooperate with each other to constitute a pseudo half mirror. The pseudo half mirror has light transmittance determined depending on a ratio in area between the opening portions and the non-opening portions. Thus, the light transmittance may be set as desired by varying the area ratio.

Fluorescent display device

Growing community of inventors

Chiba-ken, Japan

Yusuke Yasuoka