White light organic electroluminescent device
A technology of electroluminescent devices and phosphorescent luminescent materials, applied in the direction of electric solid devices, electrical components, semiconductor devices, etc., can solve the problems of short service life of blue materials, low device efficiency, complicated manufacturing, etc., and achieve high luminous efficiency and improved Stability, the effect of increasing the selection range
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
Specific embodiment one
[0047] As shown in FIG. 5, the organic functional layer 3 includes a hole injection layer 31, a light emitting layer 34, a hole blocking layer 35, and an electron transport layer 36. The light emitting layer 34 includes a blue fluorescent light emitting layer 341 and a phosphorescent light emitting layer 342. The material of the hole injection layer 31 is CuPc. The material of the blue fluorescent light-emitting layer 341 is NPB. The phosphorescent light-emitting layer 342 emits yellow phosphorescence, and the material is (t-bt) 2 Ir(acac). The carrier material in the light-emitting layer 34 is CBP. The material of the hole blocking layer 35 is BCP. The material of the electron transport layer 36 is Alq 3 . The transparent substrate 1 is made of glass. The anode layer 2 is made of ITO. The material of the cathode layer 4 is a thin layer of LiF and metal Al. The entire device structure can be described as:
[0048] Glass / ITO / CuPc / CBP:NPB / CBP:(t-bt) 2 Ir(aca...
Example Embodiment
Specific embodiment two
[0061] As shown in FIG. 6, the organic functional layer 3 includes a hole injection layer 31, a light emitting layer 34, and an electron transport layer 36. The light emitting layer 34 includes a blue fluorescent light emitting layer 341 and a phosphorescent light emitting layer 342. The material of the hole injection layer 31 is CuPc. The material of the blue fluorescent light-emitting layer 341 is DPVBi. The phosphorescent light-emitting layer 342 emits red phosphorescence, and the material is used (btp) 2 Ir(acac). The carrier material in the light-emitting layer 34 is CDBP. The material of the electron transport layer 36 is Alq 3 . The transparent substrate 1 is made of glass. The anode layer 2 is made of ITO. The material of the cathode layer 4 is an alloy of Mg and Ag. The entire device structure can be described as:
[0062] Glass / ITO / CuPc / DPVBi / CDBP:(btp) 2 Ir(acac) / Alq 3 / Mg:Ag,
[0063] or
[0064] Glass / ITO / CuPc / CDBP:(btp) 2 Ir(acac) / CDBP:DPVBi / ...
Example Embodiment
Specific embodiment three
[0066] As shown in FIG. 7, the organic functional layer 3 includes a hole injection layer 31, a light emitting layer 34, an electron transport layer 36, and a hole blocking layer 37. The light emitting layer 34 includes a blue fluorescent light emitting layer 341, a red phosphorescent light emitting layer 343 and Green phosphorescent light emitting layer 344. The material of the hole injection layer 31 is CuPc. The material of the blue fluorescent light-emitting layer 341 is NPB. Red phosphorescent light-emitting layer 343 material adoption (btp) 2 Ir(acac). Green phosphorescent light-emitting layer 344 material uses Ir(ppy) 3 . The carrier material in the light-emitting layer 34 is CBP. The material of the electron transport layer 36 is BCP. The material of the hole blocking layer 37 is BCP. The transparent substrate 1 is made of glass. The anode layer 2 is made of ITO. The material of the cathode layer 4 is a thin layer of LiF and metal Al. The entire ...
PUM
Property | Measurement | Unit |
---|---|---|
Sheet resistance | aaaaa | aaaaa |
Film thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap