Invention Grant
- Patent Title: Electroluminescent material and electroluminescent element using the same
- Patent Title (中): 电致发光材料和使用其的电致发光元件
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Application No.: US10577322Application Date: 2004-10-28
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Publication No.: US07674399B2Publication Date: 2010-03-09
- Inventor: Masanori Ando , Akio Yamanaka , Yutaka Kawabe , Eiichi Hanamura
- Applicant: Masanori Ando , Akio Yamanaka , Yutaka Kawabe , Eiichi Hanamura
- Applicant Address: JP Kawaguchi-Shi JP Tokyo
- Assignee: Japan Science and Technology Agency,National Institute of Advanced Industrial Science and Technology
- Current Assignee: Japan Science and Technology Agency,National Institute of Advanced Industrial Science and Technology
- Current Assignee Address: JP Kawaguchi-Shi JP Tokyo
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2003-370984 20031030
- International Application: PCT/JP2004/016359 WO 20041028
- International Announcement: WO2005/042669 WO 20050512
- Main IPC: H05B33/14
- IPC: H05B33/14 ; C09K11/55 ; C09K11/58 ; C09K11/78 ; C09K11/80

Abstract:
The present invention provides electroluminescent materials that emit very bright light with little energy consumption, little loss of energy converted into heat, etc., and suffers from little deterioration due to long-term use, in particular, inorganic electroluminescent materials that emit blue to green light having a wavelength shorter than yellow.Specifically, the present invention relates to the following three types of electroluminescent material: (1) An electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula RMO3, wherein R is at least one rare-earth element, and M is at least one member selected from the group consisting of Al, Mn, and Cr; (2) an electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula R2CuO4, wherein R is at least one rare-earth element; and (3) an electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula RZ2Cu3O6, wherein R is at least one rare-earth element, and Z is at least one alkali-earth metal.
Public/Granted literature
- US20070085470A1 Electroluminescent material and electroluminescent element using the same Public/Granted day:2007-04-19
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