IP Library › Granted Patent US 7,453,094
Granted Patent B2
US 7,453,094 · App. 10/662,508 · Granted Nov 18, 2008

Light-emitting apparatus and fabrication method of the same

Assignee: Semiconductor Energy Laboratory Co., Ltd.
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Quick Facts
Patent No.
US 7,453,094
App. No.
10/662,508
Granted
Nov 18, 2008
Kind
B2
Abstract

The present invention is to use a film containing fluoroplastics that is capable of forming into a lamination as a protective film for protecting a light-emitting device against moisture or gas such as oxygen so as to prevent of deterioration of the light-emitting device easier and improve reliability of the light-emitting device greater than the conventional light-emitting apparatus. In the present invention, another film can be stacked on the film containing fluoroplastics by forming irregularities by means of the surface preparation on the film containing fluoroplastics or by controlling the content of fluoroplastics in the film containing fluoroplastics. In addition, in the case that another film is stacked on the film containing fluoroplastics by controlling the content of fluoroplastics, the content of fluoroplastics can be controlled by means of forming the film containing fluoroplastics by sputtering using sequentially a plurality of targets that has different contents of fluoroplastics and metallic oxides.

Claims (68)

1. A light-emitting apparatus having a light-emitting device comprising:

a substrate;

a thin film transistor over the substrate;

an insulating film over the thin film transistor;

a first electrode over the insulating film and electrically connected to the thin film transistor;

a second electrode over the first electrode;

an electroluminescent film disposed between the first electrode and the second electrode;

a mixed film containing fluoroplastics and metallic oxide formed over the second electrode; and

an inorganic insulating film formed over the mixed film containing fluoroplastics and metallic oxide,

wherein:

the insulating film comprises a first insulating film and a second insulating film formed on the first insulating film;

the first insulating film comprises a material selected from the group consisting of acrylic, polyamide, and polyimide; and

the second insulating film comprises fluoroplastics.

2. A light-emitting apparatus having a light-emitting device comprising:

a substrate;

a thin film transistor over the substrate;

an insulating film over the thin film transistor;

a first electrode over the insulating film and electrically connected to the thin film transistor;

a second electrode over the first electrode;

an electroluminescent film disposed between the first electrode and the second electrode;

a mixed film containing fiuoroplastics and metallic oxide formed over the second electrode; and

an inorganic insulating film formed over the mixed film containing fluoroplastics and metallic oxide,

wherein:

the insulating film comprises a first insulating film and a second insulating film formed on the first insulating film;

the first insulating film is an organic resin film; and

the second insulating film comprises fluoroplastics.

3. A light-emitting apparatus having a light-emitting device comprising:

a substrate;

a thin film transistor over the substrate;

an insulating film over the thin film transistor;

a first electrode over the insulating film and electrically connected to the thin film transistor;

a second electrode over the first electrode;

an electroluminescent film disposed between the first electrode and the second electrode;

a film containing fluoroplastics formed over the second electrode; and

an inorganic insulating film formed over the film containing fluoroplastics,

wherein:

the insulating film comprises a first insulating film and a second insulating film formed on the first insulating film;

the first insulating film comprises a material selected from the group consisting of acrylic, polyamide, and polyimide; and

the second insulating film is a mixed film comprising fluoroplastics and metallic oxide.

4. A light-emitting apparatus having a light-emitting device comprising:

a substrate;

a thin film transistor over the substrate;

an insulating film over the thin film transistor;

a first electrode over the insulating film and electrically connected to the thin film transistor;

a second electrode over the first electrode;

an electroluminescent film disposed between the first electrode and the second electrode;

a film containing fluoroplastics formed over the second electrode; and

an inorganic insulating film formed over the film containing fluoroplastics,

wherein:

the insulating film comprises a first insulating film and a second insulating film formed on the first insulating film;

the first insulating film is an organic resin film; and

the second insulating film is a mixed film comprising fluoroplastics and metallic oxide.

5. A light-emitting apparatus according to claim 3 , wherein a ratio of the metallic oxides in the mixed film monotonically increases from a portion of the mixed film distant from the first electrode to a portion of the mixed film close to the first electrode.

6. A light-emitting apparatus according to claim 3 , wherein the film containing fluoroplastics is one type of polymer selected from polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, polychiorotrifluoroethylene, tetrafluoroethylene-ethylene copolymer, polyvinyl fluoride, and polyvinylidene fluoride.

7. A light-emitting apparatus according to claim 4 , wherein the film containing fluoroplastics is one type of polymer selected from polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, polychiorotrifluoroethylene, tetrafluoroethylene-ethylene copolymer, polyvinyl fluoride, and polyvinylidene fluoride.

8. A light-emitting apparatus according to claim 4 , wherein a ratio of the metallic oxides in the mixed film monotonically increases from a portion of the mixed film distant from the first electrode to a portion of the mixed film close to the first electrode.

9. A light-emitting apparatus according to claim 1 , wherein the light-emitting apparatus is selected from the group consisting of digital still camera, laptop computer, mobile computer, portable image reproducing device, goggle type display, video camera and cellular phone.

10. A light-emitting apparatus according to claim 2 , wherein the light-emitting apparatus is selected from the group consisting of digital still camera, laptop computer, mobile computer, portable image reproducing device, goggle type display, video camera and cellular phone.

11. A light-emitting apparatus according to claim 3 , wherein the light-emitting apparatus is selected from the group consisting of digital still camera, laptop computer, mobile computer, portable image reproducing device, goggle type display, video camera and cellular phone.

12. A light-emitting apparatus according to claim 4 , wherein the light-emitting apparatus is selected from the group consisting of digital still camera, laptop computer, mobile computer, portable image reproducing device, goggle type display, video camera and cellular phone.

13. A light-emitting apparatus according to claim 3 , wherein the film containing fluoroplastics has irregularities.

14. A light-emitting apparatus according to claim 4 , wherein the film containing fluoroplastics has irregularities.

15. A light-emitting apparatus according to claim 1 , wherein:

the second insulating film is a mixed film comprising fluoroplastics and metallic oxides, and

a ratio of the metallic oxides in the mixed film monotonically increases from a portion of the mixed film distant from the first electrode to a portion of the mixed film close to the first electrode.

16. A light-emitting apparatus according to claim 2 , wherein:

the insulating film is a mixed film comprising fluoroplastics and metallic oxides, and

a ratio of the metallic oxides in the mixed film monotonically increases from a portion of the mixed film distant from the first electrode to a portion of the mixed film close to the first electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2003
From: TAKAYAMA, TORU; TSURUME, TAKUYA; GOTO, YUUGO
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 014519/0831 →
Priority Claims (1)
JP 2002-276374 · Sep 20, 2002 · national
Continuity (1)
Related Publication 20040079950A1 · Apr 29, 2004