Binaphthol-Based Chromophores for Fabrication of Blue LEDs
- Technology Benefits
- • Resists crystallization • Good film forming ability • Favorable thermal stability • Good solubility in common organic solvents
- Technology Application
- • LEDs • Electroluminescent materials • Blue Organic LEDsThis technology is available for licensing. Click here to request more information.
- Detailed Technology Description
- Researchers at the University of California, Santa Barbara have developed a novel material for the fabrication of organic electroluminescent devices. The blue electroluminescent material is based on a binaphtyl compound with a general formula that has good solubility in common organic solvents, resists crystallization, and can be sublimed in a device fabrication process. The material for the electroluminescent layer exhibits high photoluminescence efficiency, good film forming ability, and ideal thermal stability making it well suited for use in stable light emitting devices.
- Supplementary Information
- Patent Number: US7442447B2
Application Number: US2004759505A
Inventor: Bazan, Guillermo C. | Benmansour, Hadjar | Sato, Yoshiharu | Shioya, Takeshi
Priority Date: 17 Jan 2003
Priority Number: US7442447B2
Application Date: 16 Jan 2004
Publication Date: 28 Oct 2008
IPC Current: H01J000162 | C07C004320 | C07D020902 | C07D020986 | C07D021514 | C07D021724 | C07D021914 | C07D022326 | C07D023520 | C07D024142 | C07D026357 | C07D026538 | C07D0271107 | C07D027766 | C07D032110 | C07D032112 | C07D040110 | C07D047104 | C09K001106 | H01L005130 | H05B003314 | C07D026356 | C07D027110 | H01L005100 | H01L005150
US Class: 428690 | 313504 | 313506 | 428917
Assignee Applicant: The Regents of the University of California
Title: Binaphthol based chromophores for the fabrication of blue organic light emitting diodes
Usefulness: Binaphthol based chromophores for the fabrication of blue organic light emitting diodes
Summary: The invention is for producing fluorescent dye, organic light emitting device (claimed), sensors, and probes in various media having biological membranes and cells.
Novelty: New binaphtyl compound for producing fluorescent dye, organic light emitting device, sensors, and probes in various media having biological membranes and cells
- Industry
- Optics
- Sub Category
- LED/OLED
- Application No.
- 7442447
- Others
-
Background
Semiconducting (conjugated) polymers, oligomers and small molecules have been studied as electroluminescent materials for use in light emitting displays since the early 1990s. Such emissive polymer displays offer a number of advantages, including high brightness at low operating voltage, low weight, thin profile and low power consumption over conventional display elements such as incandescent lamps and liquid crystal displays. Many of these materials have a high propensity for crystallization which can adversely affect thermal and mechanical properties of the polymers. Additionally, there has been a difficulty in obtaining high quality films by solution processing which has also hampered the development of the technology.
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- Water-Soluble ETL Polymers for LEDs
- Zwitterionic Catalyst for Olefin Polymerization
- Zwitterionic Electron Injection Layers for Highly Efficient Polymer LEDs
- Quasi-living metal catalyst for ethylene (homo/co)polymerization
- Method for Preparing Tapered Block Copolymers
- High Mobility Organic Semiconductors
Tech ID/UC Case
22060/2003-157-0
Related Cases
2003-157-0
- *Abstract
-
A blue electroluminescent material based on a binaphtyl compound.
- *Applications
-
• LEDs
- *IP Issue Date
- Oct 28, 2008
- *Principal Investigator
-
Name: Guillermo Bazan
Department:
Name: Hadjar Benmansour
Department:
Name: Yoshiharu Sato
Department:
Name: Takeshi Shioya
Department:
- Country/Region
- USA
