Invention Grant
- Patent Title: Organic electric field light-emitting element
- Patent Title (中): 有机电场发光元件
-
Application No.: US13040392Application Date: 2011-03-04
-
Publication No.: US08212472B2Publication Date: 2012-07-03
- Inventor: Hideki Yasuda , Tasuku Satoh
- Applicant: Hideki Yasuda , Tasuku Satoh
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2010-061097 20100317; JP2011-044166 20110301
- Main IPC: H05B33/00
- IPC: H05B33/00

Abstract:
An organic electric field light-emitting element, which contains: an anode; a cathode; and a light-emitting layer provided between the anode and the cathode, wherein the light-emitting layer contains two or more luminescent materials each giving a different emission peak, and a concentration ratio [(B/A)×100] in the light-emitting layer gradually increases along with the direction from an anode side of the light-emitting layer to a cathode side of the light-emitting layer, where A denotes a concentration of the luminescent material having the emission peak at the shortest wavelength side compared to the emission peaks of other luminescent materials, and B denote a concentration of the luminescent material having the emission peak at the longest wavelength side compared to the emission peaks of other luminescent materials, and wherein the light-emitting layer satisfies the relationship of: [(B/A)×100]≦10%.
Public/Granted literature
- US20110227478A1 ORGANIC ELECTRIC FIELD LIGHT-EMITTING ELEMENT Public/Granted day:2011-09-22
Information query