发明授权
US06479930B1 Dispersion-type electroluminescence element 失效
分散型电致发光元件

Dispersion-type electroluminescence element
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.
信息查询
0/0