Light emitting element, light emitting device and electronic apparatus
US-2015236226-A1 · Aug 20, 2015 · US
Fluorescent/phosphorescent mixed white organic light-emitting diode
US10263209B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10263209-B2 |
| Application number | US-201715500284-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 20, 2017 |
| Priority date | Aug 26, 2016 |
| Publication date | Apr 16, 2019 |
| Grant date | Apr 16, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
Disclosed is a fluorescent/phosphorescent mixed white organic light-emitting diode, which has high efficiency and good spectral stability.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fluorescent/phosphorescent mixed white organic light-emitting diode, wherein a light emitting layer thereof comprises a blue light emitting layer, a green light emitting layer, and a red light emitting layer, wherein the blue light emitting layer comprises a body material and a blue fluorescent material, the body material of the blue light emitting layer comprising an electron-type body material; the green light emitting layer comprises a green phosphorescent material; and the red light emitting layer comprises a red phosphorescent material, wherein the electron-type body material is 1,3,5-tris r(3-pyridyl)-3-phenyl benzene, and the blue fluorescent material is bis TN-(1-naphthyl)-N-phenyl-aminol quaterphenyl; wherein a body material of the red light emitting layer comprises a hole-type body material, and/or a body material of the green light emitting layer comprises a hole-type body material; wherein the body material of the blue light emitting layer further comprises a hole-type body material, and/or a body material of the green light emitting layer comprises an electron-type body material; wherein the blue light emitting layer has a thickness in a range from 5 nm to 15 nm; the green light emitting layer has a thickness in a range from 5 nm to 20 nm; and the red light emitting layer has a thickness in a range from 2 nm to 10 nm. 2. The organic light-emitting diode according to claim 1 , wherein the hole-type body material is 4,4′,4″-tris (9-carbazolyl) triphenylamine. 3. The organic light-emitting diode according to claim 1 , wherein the hole-type body material is 4,4′,4″-tris (9-carbazolyl) triphenylamine. 4. The organic light-emitting diode according to claim 1 , wherein the blue light emitting layer has a thickness in a range from 5 nm to 15 nm; the green light emitting layer has a thickness in a range from 5 nm to 20 nm; and the red light emitting layer has a thickness in a range from 2 nm to 10 nm. 5. The organic light-emitting diode according to claim 1 , wherein the blue light emitting layer has a thickness in a range from 5 nm to 15 nm; the green light emitting layer has a thickness in a range from 5 nm to 20 nm; and the red light emitting layer has a thickness in a range from 2 nm to 10 nm. 6. The organic light-emitting diode according to claim 1 , wherein in the blue light emitting layer, a mass ratio of the blue fluorescent material to the body material is in a range from 1:1 to 1:60. 7. The organic light-emitting diode according to claim 1 , wherein in the blue light emitting layer, a mass ratio of the blue fluorescent material to the body material is in a range from 1:1 to 1:60. 8. The organic light-emitting diode according to claim 1 , wherein in the blue light emitting layer, a mass ratio of the blue fluorescent material to the body material is in a range from 1:1 to 1:60. 9. The organic light-emitting diode according to claim 1 , wherein in the body material of the blue light emitting layer, a mass ratio of the electron-type body material to the hole-type body material is in a range from 0.5:1 to 3:1. 10. The organic light-emitting diode according to claim 1 , wherein the light emitting layer is formed by the red light emitting layer, the blue light emitting layer, and the green light emitting layer which are superposed sequentially in a direction from an anode to a cathode. 11. The organic light-emitting diode according to claim 1 , wherein the light emitting layer is formed by the red light emitting layer, the blue light emitting layer, and the green light emitting layer which are superposed sequentially in a direction from an anode to a cathode. 12. The organic light-emitting diode according to claim 1 , wherein the light emitting layer is formed by the red light emitting layer, the blue light emitting layer, and the green light emitting layer which are superposed sequentially in a direction from an anode to a cathode. 13. The organic light-emitting diode according to claim 1 , wherein the light emitting layer is formed by the red light emitting layer, the green light emitting layer, and the blue light emitting layer which are superposed sequentially in a direction from an anode to a cathode. 14. The organic light-emitting diode according to claim 1 , wherein the light emitting layer is formed by the red light emitting layer, the green light emitting layer, and the blue light emitting layer which are superposed sequentially in a direction from an anode to a cathode.
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H01L51/504Primary
Electricity · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10263209B2 cover?
- Disclosed is a fluorescent/phosphorescent mixed white organic light-emitting diode, which has high efficiency and good spectral stability.
- Who is the assignee on this patent?
- Shenzhen China Star Optoelect
- What technology area does this patent fall under?
- Primary CPC classification H01L51/504. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 16 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).