Invention Grant
- Patent Title: Organic light-emitting diode with enhanced efficiency
- Patent Title (中): 有机发光二极管提高效率
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Application No.: US13577221Application Date: 2011-02-01
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Publication No.: US08933439B2Publication Date: 2015-01-13
- Inventor: Liping Ma
- Applicant: Liping Ma
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Knobbe, Martens, Olson & Bear, LLP
- International Application: PCT/US2011/023404 WO 20110201
- International Announcement: WO2011/097259 WO 20110811
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L29/04 ; H01L27/15 ; H01L33/00 ; H01L51/50 ; H01L51/00
Abstract:
Generally, the devices provided herein comprise at least a hole-transport layer, two light-emitting layers, and an electron-transport layer, each having a highest occupied molecular orbital (HOMO) energy level and a lowest unoccupied molecular orbital (LUMO) energy level, wherein at least one of the HOMO energy levels and/or the LUMO energy levels of at least one of the light-emitting layers does not decrease in a stepwise fashion.
Public/Granted literature
- US20130069044A1 ORGANIC LIGHT-EMITTING DIODE WITH ENHANCED EFFICIENCY Public/Granted day:2013-03-21
Information query
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