Filters of electronic displays

Details Filters of electronic displays Filters of electronic displays

2007-07-10

2007-07-10

Wu, Shean C (Department: 1756)

Optical: systems and elements

Absorption filter

C428S001310, C252S582000, C252S586000, C252S589000

Reexamination Certificate

active

10516749

ABSTRACT:
A filter of an electronic display device provides a clear image, the filter comprising an squarylium compound represent by formula (II):wherein R15and R17independently represent a hydrogen atom, a halogen atom, substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a nitro group, a cyano group, a hydroxyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted heterocyclic group;R16and R18independently represent an alkoxyalkoxyl-substituted alkyl group;R19and R20independently represent a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a nitro group, a cyano group, a hydroxyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted heterocyclic group;m represents an integer of 0 to 4, wherein, when m is 2 to 4, R19may be the same or different, respectively; andn represents an integer of 0 to 4, wherein, when n is 2 to 4, R20may be the same or different respectively.

REFERENCES:
patent: 6596364 (2003-07-01), Shimizu et al.
patent: 6746629 (2004-06-01), Ozawa et al.
patent: 6836383 (2004-12-01), Ozawa et al.
patent: 2000-265077 (2000-09-01), None
patent: 2001-166131 (2001-06-01), None

Affiliated with

Also associated with

Rating

Filters of electronic displays does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filters of electronic displays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filters of electronic displays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3799001