FILTER FOR ELECTRONIC DISPLAY

WIPO Patent Application WO/2006/011514

A1

Disclosed is a filter for electronic displays which contains a squarylium compound represented by the general formula (I) below. [In the formula, R¹ and R² may be the same or different and represent hydrogen atoms, optionally substituted alkyl groups, optionally substituted aralkyl groups, optionally substituted aryl groups or optionally substituted heterocyclic groups; and X represents the formula (A) below (wherein R³ and R⁴ may be the same or different and represent hydrogen atoms, optionally substituted alkyl groups, optionally substituted alkoxyl groups, optionally substituted aralkyl groups, optionally substituted aryl groups or optionally substituted heterocyclic groups, and R³ and R⁴ may form an optionally substituted heterocyclic group together with an adjacent nitrogen atom) or the like.]

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SHIMIZU IKUO
YAMANO JUNZO
KINUGASA MOTOHARU
UKAI KATSUMI

PCT/JP2005/013740

February 02, 2006

July 27, 2005

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KYOWA HAKKO CHEMICAL CO LTD (JP)
SHIMIZU IKUO
YAMANO JUNZO
KINUGASA MOTOHARU
UKAI KATSUMI

G02B5/20; C09B57/00; G02B5/22; G09F9/00

WO2005059608A1

2005-06-30

JP2001322356A	2001-11-20
JP2002370452A	2002-12-24
JP2002234259A	2002-08-20
JP2002370451A	2002-12-24

Iwahashi, Kazuyuki (Intellectual Property Department, 6-1, Ohtemachi 1-chome, Chiyoda-k, Tokyo 85, JP)

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