Light emitting device, electronic equipment, and organic polarizing film
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-035/24
H01L-035/12
출원번호
US-0260398
(2002-10-01)
우선권정보
JP-2001-305862(2001-10-01)
발명자
/ 주소
Yamazaki,Shunepi
Takayama,Toru
출원인 / 주소
Semiconductor Energy Laboratory Co., Ltd.
대리인 / 주소
Nixon Peabody LLP
인용정보
피인용 횟수 :
16인용 특허 :
53
초록▼
A light emitting device capable of reducing degradation caused by dispersion of impurities such as moisture, oxygen, an alkaline metal, and an alkaline earth metal is provided. Specifically, a flexible light emitting device with an OLED formed on a plastic substrate is provided. In a light emitting
A light emitting device capable of reducing degradation caused by dispersion of impurities such as moisture, oxygen, an alkaline metal, and an alkaline earth metal is provided. Specifically, a flexible light emitting device with an OLED formed on a plastic substrate is provided. In a light emitting device using a substrate, a circular polarizing plate has a single layer or two or more layers of barrier films formed of a compound or compounds selected from AlNXO Y, AlXNY, and Al2O3, which is (are) capable of preventing oxygen and moisture from seeping into an organic light emitting layer of an OLED as well as preventing an alkaline metal, an alkaline earth metal, and other impurities from penetrating an active layer of a TFT.
대표청구항▼
What is claimed is: 1. A light emitting device comprising: a thin film transistor over a substrate; a first insulating film over the thin film transistor; a first electrode over the first insulating film and connected to the thin film transistor through a hole formed in the first insulating film;
What is claimed is: 1. A light emitting device comprising: a thin film transistor over a substrate; a first insulating film over the thin film transistor; a first electrode over the first insulating film and connected to the thin film transistor through a hole formed in the first insulating film; a light emitting layer comprising an organic compound over the first electrode; a second electrode over the light emitting layer; a second insulating film comprising AlNXOY over the second electrode; a circular polarizing plate having at least a layer comprising AlNXOY to prevent oxygen and moisture from seeping into the organic compound layer. 2. A light emitting device comprising: at least one first insulating film comprising AlNX OY over a substrate; a thin film transistor over the substrate; a second insulating film over the thin film transistor; a first electrode over the second insulating film and connected to the thin film transistor through a hole formed in the second insulating film; a light emitting layer comprising an organic compound over the first electrode; a second electrode over the light emitting layer; a third insulating film comprising AlNXOY over the second electrode; a circular polarizing plate having at least a layer comprising AlNXOY to prevent oxygen and moisture from seeping into the organic compound layer. 3. A light emitting device comprising: a thin film transistor over a substrate; a first insulating film over the thin film transistor; a first electrode over the first insulating film and connected to the thin film transistor through a hole formed in the first insulating film; a light emitting layer comprising an organic compound over the first electrode; a second electrode over the light emitting layer; a second insulating film comprising AlNXOY over the second electrode; a circular polarizing plate having at least a layer comprising AlNXOY over the second insulating film; and an air gap provided between the second insulating film and the circular polarizing plate. 4. A light emitting device comprising: at least one first insulating film comprising AlNX OY over a substrate; a thin film transistor over the substrate; a second insulating film over the thin film transistor; a first electrode over the second insulating film and connected to the thin film transistor through a hole formed in the second insulating film; a light emitting layer comprising an organic compound over the first electrode; a second electrode over the light emitting layer; a third insulating film comprising AlNXOY over the second electrode; a circular polarizing plate having at least a layer comprising AlNXOY over the second insulating film; and an air gap provided between the second insulating film and the circular polarizing plate. 5. A light emitting device according to claim 1, wherein the substrate is a plastic film substrate comprising a material selected from the group consisting of polyethylene terephthalate (PET), polyether sulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), nylon, polyether ether ketone (PEEK), polysulfone (PSF), polyether imide (PEI), polyarylate (PAR) and polybutylene terephthalate (PBT). 6. A light emitting device according to claim 2, wherein the substrate is a plastic film substrate comprising a material selected from the group consisting of polyethylene terephthalate (PET), polyether sulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), nylon, polyether ether ketone (PEEK), polysulfone (PSF), polyether imide (PEI), polyarylate (PAR) and polybutylene terephthalate (PBT). 7. A light emitting device according to claim 3, wherein the substrate is a plastic film substrate comprising a material selected from the group consisting of polyethylene terephthalate (PET), polyether sulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), nylon, polyether ether ketone (PEEK), polysulfone (PSF), polyether imide (PEI), polyarylate (PAR) and polybutylene terephthalate (PBT). 8. A light emitting device according to claim 4, wherein the substrate is a plastic film substrate comprising a material selected from the group consisting of polyethylene terephthalate (PET), polyether sulfone (PBS), polyethylene naphthalate (PEN), polycarbonate (PC), nylon, polyether ether ketone (PEEK), polysulfone (PSF), polyether imide (PEI), polyarylate (PAR) and polybutylene terephthalate (PBT). 9. A light emitting device according to claim 1, wherein the total thickness of the layer comprising AlNXOY is 50 to 500 nm. 10. A light emitting device according to claim 2, wherein the total thickness of the layer comprising AlNXOY is 50 to 500 nm. 11. A light emitting device according to claim 3, wherein the total thickness of the layer comprising AlNXOY is 50 to 500 nm. 12. A light emitting device according to claim 4, wherein the total thickness of the layer comprising AlNXOY is 50 to 500 nm. 13. A light emitting device according to claim 1, wherein the layer comprising AlNXOY contains 2.5 to 47.5 atm % of nitrogen. 14. A light emitting device according to claim 2, wherein the layer comprising AlNXOY contains 2.5 to 47.5 atm % of nitrogen. 15. A light emitting device according to claim 3, wherein the layer comprising AlNXOY contains 2.5 to 47.5 atm % of nitrogen. 16. A light emitting device according to claim 4, wherein the layer comprising AlNXOY contains 2.5 to 47.5 atm % of nitrogen. 17. A light emitting device according to claim 1, wherein the light emitting device is comprised in an electronic apparatus selected from the group consisting of a video camera, a digital camera, a goggle-type display, a car navigation system, a personal computer, and a portable information terminal. 18. A light emitting device according to claim 2, wherein the light emitting device is comprised in an electronic apparatus selected from the group consisting of a video camera, a digital camera, a goggle-type display, a car navigation system a personal computer, and a portable information terminal. 19. A light emitting device according to claim 3, wherein the light emitting device is comprised in an electronic apparatus selected from the group consisting of a video camera, a digital camera, a goggle-type display, a car navigation system, a personal computer, and a portable information terminal. 20. A light emitting device according to claim 4, wherein the light emitting device is comprised in an electronic apparatus selected from the group consisting of a video camera, a digital camera, a goggle-type display, a car navigation system, a personal computer, and a portable information terminal.
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