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Title:
LIGHT EMITTING ELEMENT, DISPLAY DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JP2012234733
Kind Code:
A
Abstract:

To provide: a light emitting element which includes a plurality of luminous layers emitting same color light between a cathode and an anode and is increased in life by allowing the plurality of luminous layers to emit light with a time difference; a display device including the light emitting element; and an electronic apparatus.

A light emitting element 1B includes: a first blue light emitting layer 51B provided between an anode 3 and a cathode 8; and a second blue light emitting layer 52B provided between the cathode 8 and the first blue light emitting layer 51B. The light emitting element 1B further includes a laminate 46 between the first blue light emitting layer 51B and the second blue light emitting layer 52B, the laminate 46 including a hole transport layer 43 and an electron injection layer 61 which are laminated in the order from a side of the first blue light emitting layer 51B.


Inventors:
SONOYAMA TAKUYA
Application Number:
JP2011103237A
Publication Date:
November 29, 2012
Filing Date:
May 02, 2011
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
H05B33/12; H01L51/50
Domestic Patent References:
JP2007059848A2007-03-08
JP2007523451A2007-08-16
JP2006013458A2006-01-12
JP2009259852A2009-11-05
JP2006294895A2006-10-26
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi



 
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