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Title:
発光素子、表示装置及びテレビ受像器
Document Type and Number:
Japanese Patent JP4823566
Kind Code:
B2
Abstract:

To provide a thin film luminous element of low-driving-voltage, and a thin film luminous element where the deterioration of color purity and luminous efficiency do not occur even if the thin film luminous element has a structure of low-driving-voltage.

The structure of the film luminous element to solve the above problem includes at least an electron transmitting layer, a luminous layer containing a luminous substance, a first area, and a second area. The electron transmitting layer has the second area between the luminous layer and the first area, and a substance having a polycyclic condensed ring is contained in the first area, and the substance having the ploycyclic condensed ring is not contained in the second area.

COPYRIGHT: (C)2006,JPO&NCIPI


Inventors:
Nobuharu Osawa
Hiroko Abe
Application Number:
JP2005147829A
Publication Date:
November 24, 2011
Filing Date:
May 20, 2005
Export Citation:
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Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L51/50; G09F9/30; H01L27/32
Domestic Patent References:
JP2002093583A
JP2003168567A
JP2000196140A
JP2002313584A
JP2002313583A
JP200351388A
JP2004134396A



 
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