Light-emitting device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakeshi Fukunaga, Junya Maruyama
Life of this patent
Estimating the term…
Abstract
To provide a bright and highly reliable light-emitting device. An anode (102), an EL layer (103), a cathode (104), and an auxiliary electrode (105) are formed sequentially in lamination on a reflecting electrode (101). Further, the anode (102), the cathode (104), and the auxiliary electrode (105) are either transparent or semi-transparent with respect to visible radiation. In such a structure, lights generated in the EL layer (103) are almost all irradiated to the side of the cathode (104), whereby an effect light emitting area of a pixel is drastically enhanced.
Claims26
A light emitting device comprising:
- an anode;
- a cathode;
- an EL layer provided between said anode and said cathode;
- and
- a reflective electrode provided in contact with said anode.
A light emitting device comprising:
- a reflective electrode;
- an anode provided over said reflective electrode;
- an EL layer provided over said anode;
- and
- a cathode provided over said EL layer.
A light emitting device comprising:
- an anode;
- a cathode;
- an EL layer provided between said anode and said cathode;
- a reflective electrode provided in contact with said anode;
- and
- an auxiliary electrode provided in contact with said cathode.
A light emitting device comprising:
- a reflective electrode;
- an anode provided over said reflective electrode;
- an EL layer provided over said anode;
- a cathode provided over said EL layer;
- and
- an auxiliary electrode provided over said cathode.
Dependencies are inferred from the claim text.