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US 6,611,097 B1Granted
Electroluminescent element comprising reduced number of parts and lighting unit having the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTetsuro Hanahara, Minoru Hato, Shinji Okuma, Yoshiharu Abe
Life of this patent
Estimating the term…
Abstract
An elecroluminescence (EL) element emits light from its both surfaces. The EL element is formed by printing front electrode layer, luminescent layer made of high dielectric resin with luminous powder dispersed therein, and rear electrode layer made of light-transmittable resin with conductive powder dispersed therein on at least one of surfaces of insulating film.
Claims16
An electroluminescence element comprising;
- a light-transmittable insulating film;
- a light-transmittable front electrode layer formed over at least a portion of said light-transmittable insulating film;
- a luminescent layer made of high dielectric resin with luminescent powder dispersed therein over said front electrode layer;
- a light-transmittable rear electrode layer made of light-transmittable resin with conductive powder dispersed therein over said luminescent layer;
- a light-transmittable insulating layer made of light-transmittable resin over said rear electrode layer, and
- a dielectric layer made of high dielectric resin with high dielectric powder dispersed therein over said luminescent layer.
3 more elements
An electroluminescence element comprising;
- a light-transmittable insulating film;
- a light-transmittable front electrode layer formed over at least a portion of said light-transmittable insulating film;
- a luminescent layer made of high dielectric resin with luminescent powder dispersed therein over said front electrode layer;
- a light-transmittable rear electrode layer made of light-transmittable resin with conductive powder dispersed therein over said luminescent layer;
- a light-transmittable insulating layer made of light-transmittable resin over said rear electrode layer, and
- a color converting layer made of light-transmittable resin with one of luminous dyes and luminous pigments dispersed therein over at least one of said insulating film, said front electrode layer and said rear electrode layer.
3 more elements
An electroluminescence element comprising:
- an insulating film;
- a plurality of front electrode layers formed on respective top and bottom surfaces of said insulating film;
- plurality of luminescent layers made of high dielectric resin with luminescent powder dispersed therein over respective surfaces of said front electrode layers;
- a plurality of light-transmittable rear layers made of light-transmittable resin with conductive powder dispersed therein on respective surfaces of said luminescent layers;
- and
- a dielectric layer made of high dielectric resin with high dielectric powder dispersed therein over both surfaces of said luminescent layers.
3 more elements
An electroluminescence element comprising:
- an insulating film;
- a plurality of front electrode layers formed on respective top and bottom surfaces of said insulating film;
- a plurality of luminescent layers made of high dielectric resin with luminescent powder dispersed therein over respective surfaces of said front electrode layers;
- a plurality of light-transmittable rear layers made of light-transmittable resin with conductive powder dispersed therein on respective surfaces of said luminescent layers;
- and
- a color converting layer made of light-transmittable resin with one of luminous dyes and luminous pigments dispersed therein over at least one of both surfaces of said insulating layer, both surfaces of said front electrode layer and both surfaces of said rear electrode layer.
3 more elements
A lighting unit comprising:
- (a) an electroluminescence element including:
- (a-1) a light-transmittable insulating film;
- (a-2) a light-transmittable front electrode layer formed over at least a portion of said insulating film;
- (a-3) a luminescent layer made of high dielectric resin with luminescent powder dispersed therein over said front electrode layer;
- (a-4) a light-transmittable rear electrode layer made of light-transmittable resin with conductive powder dispersed therein over said luminescent layer;
- (a-5) a dielectric layer made of high dielectric resin with high dielectric powder dispersed therein over said luminescent layer;
- (a-6) a light-transmittable insulating layer made of light-transmittable resin over said rear electrode layer, and
- (b) at least one of a liquid crystal device and a display panel disposed on at least one surface of said electroluminescence element.
5 more elements
A lighting unit comprising:
- (a) an electroluminescence element including:
- (a-1) a light-transmittable insulating film;
- (a-2) a light-transmittable front electrode layer formed over at least a portion of said insulating film;
- (a-3) a luminescent layer made of high dielectric resin with luminescent powder dispersed therein over said front electrode layer;
- (a-4) a light-transmittable rear electrode layer made of light-transmittable resin with conductive powder dispersed therein over said luminescent layer;
- (a-5) a light-transmittable insulating layer made of light-transmittable resin over said rear electrode layer, and
- (a-6) a color converting layer made of light-transmittable resin with one of luminous dyes and luminous pigments dispersed therein over at least one of said insulating film, said front electrode layer and said rear electrode layer, and
- (b) at least one of a liquid crystal device and a display panel disposed on at least one surface of said electroluminescence element.
5 more elements
Dependencies are inferred from the claim text.