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Title:
蛍光ランプ及び画像表示装置
Document Type and Number:
Japanese Patent JP5363584
Kind Code:
B2
Abstract:
To obtain effective luminance and light efficiency while avoiding discharge, it is necessary to sufficiently increase a current luminous efficiency of gas and an electron emission efficiency of an electron source. In a fluorescent lamp, an anode electric field is increased by setting a pressure of a noble gas or a molecular gas enclosed to 10 kPa or higher, setting an anode voltage to 240 V or lower, and setting a substrate distance to 0.4 mm or smaller. Furthermore, the resulting effect that the current luminous efficiency is increased in proportion to the electric field is used. Also, by applying a MIM electron source having an electron emission efficiency exceeding 10% as an electron source, a non-discharge fluorescent lamp having a light emission luminance equal to or larger than 10 4 [cd/m 2 ] and a light emission efficiency equal to or larger than 120 [lm/W] is achieved.

Inventors:
Masakazu Sagawa
Shin Imamura
Toshiaki Kusunoki
Application Number:
JP2011535294A
Publication Date:
December 11, 2013
Filing Date:
February 23, 2010
Export Citation:
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Assignee:
株式会社日立製作所
International Classes:
H01J63/08; H01J1/312; H01J17/04; H01J17/20; H01J17/49; H01J31/12
Domestic Patent References:
JP2001006565A2001-01-12
JP2003518705A2003-06-10
JP2005149779A2005-06-09
JP2009009822A2009-01-15
JP2008270034A2008-11-06
JP2001006565A2001-01-12
JP2003518705A2003-06-10
JP2005149779A2005-06-09
JP2009009822A2009-01-15
JP2008270034A2008-11-06
Attorney, Agent or Firm:
Yamato Tsutsui