Achromatic quarter-wave films

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C349S096000, C349S098000, C349S118000, C349S119000, C349S120000

Reexamination Certificate

active

07009670

ABSTRACT:
The achromatic quarter-wave film of this invention has a laminated twisted nematic liquid crystal film sandwiched between two uniaxial polymer films to provide a optical component which converts linearly polarized light into circularly polarized radiation which upon reflection back through said optical component is blocked from outward radiation by the polarizer for the initial incident wide spectrum light thus realizing wider broadband width for full color flat panel displays.

REFERENCES:
patent: 5863457 (1999-01-01), Hasebe et al.
patent: 6204904 (2001-03-01), Tillin et al.
S. Pancharatnam,Proceedings of the Indian Academy of Science,Sec. A., vol. 41, 130-136 (1955).
Tae-Hoon Yoon, Gi-Dong Lee and Jae Chang Kim,Nontwist quarter-wave liquid-crystal cell for a high-constrast reflective display,vol. 25, No. 20/Optics Letters, Oct. 15, 2000.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Achromatic quarter-wave films does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Achromatic quarter-wave films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Achromatic quarter-wave films will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3591136

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.