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US 2002/0163299 A1Published application
EL element lighting unit employing the same EL element
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMinoru Hato, Yoshiharu Abe
Life of this patent
Estimating the term…
Abstract
An EL element includes plural light transmitting front-electrodes forming plural lines by wiring and plural back-electrodes forming plural lines by wiring. The front-electrodes cross with the back-electrodes at a given angle, and a light-emitting layer is disposed between the front-electrodes and the back-electrodes. The EL element combined with a controller works as a lighting unit, which controls light emission at any place, so that a variety of lighting is realized by the lighting unit.
Claims19
An electro-luminescent (EL) element comprising:
- (a) a light transmitting base;
- (b) a front electrode layer formed on said base, and including a plurality of light transmitting front electrodes making a line and a front wiring electrode which couples the front electrodes;
- (c) a back electrode layer including a plurality of back electrodes making a line and facing said front electrodes and a back wiring electrode which couples the back electrodes;
- and
- (d) a light-emitting layer disposed between said front electrode layer and said back electrode layer,
- wherein the line of the front electrodes is placed above the line of the back electrodes at a given angle via said light-emitting layer.
3 more elements
An electro-luminescent (EL) element comprising:
- (a) a light transmitting base;
- (b) a front electrode layer formed on said base, and including a plurality of light transmitting front electrodes making a line and a front wiring electrode which couples the front electrodes;
- (c) a middle electrode layer including a plurality of light transmitting middle electrodes making a line and facing said front electrodes and a middle wiring electrode which couples the middle electrodes;
- (d) a back electrode layer including a plurality of back electrodes making a line and facing said middle electrodes and a back wiring electrode which couples the back electrodes;
- (e) a first light-emitting layer disposed between said front electrode layer and said middle electrode layer;
- (f) a second light-emitting layer disposed between said middle electrode layer and said back electrode layer,
- wherein the line of the front electrodes is place above the line of the back electrodes in parallel, and placed above the line of the middle electrodes at a given angle.
4 more elements
A lighting unit comprising:
- (a) a plurality of pushbuttons;
- (b) a plurality of switch contacts disposed under said pushbuttons for performing electrical switching;
- (c) an electro-luminescent (EL) element disposed on one of an upper face and a lower face of one of said switch contacts;
- said EL element including:
- (c1) a light transmitting base;
- (c2) a front electrode layer formed on said base, and including a plurality of light transmitting front electrodes making a line and a front wiring electrode which couples the front electrodes;
- (c3) a back electrode layer including a plurality of back electrodes making a line and facing said front electrodes and a back wiring electrode which couples the back electrodes;
- and
- (c4) a light-emitting layer disposed between said front electrode layer and said back electrode layer,
- wherein the line of the front electrodes is placed above the line of the back electrodes at a given angle via said light-emitting layer,
- (d) a controller for being coupled to said switch contacts and said EL element,
- wherein said controller controls light emission from said EL element at a given place, so that a pushbutton corresponding to the given place is illuminated.
9 more elements
A lighting unit comprising:
- (a) a plurality of pushbuttons;
- (b) a plurality of switch contacts for performing electrical switching by depressing at least one of said pushbuttons;
- (c) an electro-luminescent (EL) element disposed on one of an upper face and a lower face of one of said switch contacts:
- said EL element including:
- (c1) a light transmitting base;
- (c2) a front electrode layer formed on said base, and including a plurality of light transmitting front electrodes making a line and a front wiring electrode which couples the front electrodes;
- (c3) a middle electrode layer including a plurality of light transmitting middle electrodes making a line and facing said front electrodes and a middle wiring electrode which couples the middle electrodes;
- (c4) a back electrode layer including a plurality of back electrodes making a line and facing said middle electrodes and a back wiring electrode which couples the back electrodes;
- (c5) a first light-emitting layer disposed between said front electrode layer and said middle electrode layer;
- (c6) a second light-emitting layer disposed between said middle electrode layer and said back electrode layer,
- wherein the line of the front electrodes is place above the line of the back electrodes in parallel, and placed above the line of the middle electrodes at a given angle,
- (d) a controller for being coupled to said switch contacts and said EL element,
- wherein said controller controls light emission from said EL element at a given place, so that a pushbutton corresponding to the given place is illuminated.
10 more elements
Dependencies are inferred from the claim text.