Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1986-12-30
1988-12-27
Moore, David K.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313498, 313113, H05B 3314, H05B 3322
Patent
active
047943025
ABSTRACT:
The thin film EL device includes a luminescent layer made of column polycrystals formed by independently evaporating luminescent host material and an activator and then combining evaporated substances on a substrate.
Electrons in the luminescent layer are accelerated by electric field applied from outside efficiently collide against the activator without being intercepted by interfaces between crystalline particles. The thin film EL device can be used for display, illumination, writing, reading out and erasure of signals of photo- recording medium.
REFERENCES:
patent: 4508610 (1985-04-01), Freeman et al.
patent: 4602189 (1986-07-01), Panicker
patent: 4647813 (1987-03-01), Kitabayashi et al.
Nire Takashi
Watanabe Takehito
Kabushiki Kaisha Komatsu Seisakusho
Moore David K.
Wieder K.
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