发明授权
- 专利标题: Dispersion-type electroluminescence element
- 专利标题(中): 分散型电致发光元件
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申请号: US09349406申请日: 1999-07-08
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公开(公告)号: US06479930B1公开(公告)日: 2002-11-12
- 发明人: Koji Tanabe , Heiji Ikoma , Naohiro Nishioka , Yosuke Chikahisa
- 申请人: Koji Tanabe , Heiji Ikoma , Naohiro Nishioka , Yosuke Chikahisa
- 优先权: JP10-198510 19980714; JP10-249362 19980903
- 主分类号: H05B3300
- IPC分类号: H05B3300
摘要:
A dispersion-type electroluminescence element composed of a plurality of light-transmitting electrode layers 12A, 12B and a plurality of luminescence layers 13A, 13B of dielectric resin having a high permittivity dispersed with fluorescent powder stacked one layer after the other over the whole region, or in a certain specific region, of one surface of a light-transmitting insulation film 1; and a back electrode layer 14 provided on the last layer of the luminescence layers formed by a printing process. The electroluminescence element is capable of producing a multiple number of luminescence colors, yet the cost is low. In other example of carrying out the present invention, a luminescence layer 23 formed of a luminous body of one single luminescence color provided over a whole region of a surface is sandwiched by a back electrode layer 25 and a light-transmitting electrode layer 22 composed of two groups of fine line comb-teeth layer coupled one tooth after the one of the other electrode layer, and a stripe-shaped color conversion layer 27 is provided in a location corresponding to one of the two groups of comb-teeth fine lines. When an AC voltage is applied on the back electrode layer 25 and each of the two respective light-transmitting electrode layers 22 independently, a multiple number of luminescence colors are produced in a homogeneous plane luminescence, without accompanying the stripes outstanding to the eyes.
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