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US 6,528,824 B2Granted
Light emitting device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsHirokazu Yamagata, Junya Maruyama
Life of this patent
Estimating the term…
Abstract
In a light-emitting device wherein a light shield portion is disposed in touch with a transparent electrode included in a pixel, the light shield portion (105 in FIG. 1) is disposed at the peripheral part of the transparent electrode (101), whereby that part of light (visible light) emitted in an EL layer (102) which escapes from the peripheral part of the transparent electrode (101) can be intercepted or reflected. Thus, the loss of the light emitted in the EL layer (102) and the leakage thereof to an adjacent pixel can be prevented, and the efficiency of deriving the light can be sharply heightened.
Claims63
A light-emitting device comprising:
- a transparent electrode formed in contact with an insulating surface;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- an electro-luminescence layer formed on said transparent electrode and overlapped with said interlayer insulating film;
- a non-transparent electrode formed on said electro-luminescence layer;
- and
- a light shield portion formed in contact with said insulating surface.
3 more elements
A light-emitting device comprising:
- a transparent electrode formed in contact with an insulating surface;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- a light shield portion formed in contact with said insulating surface;
- an electro-luminescence layer formed on said transparent electrode and overlapped with said interlayer insulating film;
- and
- a non-transparent electrode formed on said electro-luminescence layer,
- wherein a part of said light shield portion is in contact with said transparent electrode.
4 more elements
A light-emitting device comprising:
- a plurality of transparent electrodes formed in contact with an insulating surface;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- an electro-luminescence layer formed on each of said transparent electrodes and overlapped with said interlayer insulating film;
- a non-transparent electrode formed on said electro-luminescence layer;
- and
- light shield portions formed in contact with said insulating surface.
3 more elements
A light-emitting device comprising:
- a plurality of transparent electrodes formed in contact with an insulating surface;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- light shield portions formed in contact with said insulating surface;
- an electro-luminescence layer formed on each of said transparent electrodes and overlapped with said interlayer insulating film;
- and
- a non-transparent electrode formed on said electro-luminescence layer,
- wherein each of said light shield portions is in contact with said respectively corresponding transparent electrodes.
4 more elements
A light-emitting device comprising:
- a plurality of transparent electrodes formed in contact with an insulating surface;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- light shield portions formed in contact with said insulating surface;
- an electro-luminescence layer formed on each of said transparent electrodes and overlapped with said interlayer insulating film;
- and
- a non-transparent electrode formed in contact with said electro-luminescence layer,
- wherein each of said light shield portions is in contact with at least two of said transparent electrodes.
4 more elements
A light-emitting device comprising:
- a transparent electrode formed in contact with an insulating surface, and connected with a thin film transistor through a wiring line;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- an electro-luminescence layer formed on said transparent electrode and overlapped with said interlayer insulating film;
- a non-transparent electrode formed on said electro-luminescence layer;
- and
- a light shield portion formed in contact with said insulating surface.
3 more elements
A light-emitting device comprising:
- a transparent electrode formed in contact with an insulating surface, and connected with a thin film transistor through a wiring line;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- a light shield portion formed in contact with said insulating surface;
- an electro-luminescence layer formed on said transparent electrode and overlapped with said interlayer insulating film;
- and
- a non-transparent electrode formed on said electro-luminescence layer, wherein a part of said light shield portion is in contact with said transparent electrode.
3 more elements
A light-emitting device having a plurality of pixels comprising:
- transparent electrodes formed in contact with an insulating surface, and connected with thin film transistors through wiring lines;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- an electro-luminescence layer formed on each of said transparent electrodes and overlapped with said interlayer insulating film;
- a non-transparent electrode formed on said electro-luminescence layer;
- and
- light shield portions formed in contact with said insulating surface.
3 more elements
A light-emitting device having a plurality of pixels comprising:
- transparent electrodes formed in contact with an insulating surface, and connected with thin film transistors through wiring lines;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- light shield portions formed in contact with said insulating surface;
- an electro-luminescence layer formed on each of said transparent electrodes and overlapped with said interlayer insulating film;
- and
- a non-transparent electrode formed on said electro-luminescence layer,
- wherein each of said light shield portions is in contact with said respectively corresponding transparent electrodes.
4 more elements
A light-emitting device having a plurality of pixels comprising:
- transparent electrodes formed in contact with an insulating surface, and connected with thin film transistors through wiring lines;
- an interlayer insulating film formed in contact with a portion of said insulating surface;
- light shield portions formed in contact with said insulating surface;
- an electro-luminescence layer formed on each of said transparent electrodes and overlapped with said interlayer insulating film;
- and
- a non-transparent electrode formed on said electro-luminescence layer,
- wherein each of said light shield portions is in contact with at least two of said transparent electrodes.
4 more elements
Dependencies are inferred from the claim text.