Reflective cholesteric liquid crystal display with...

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

Reexamination Certificate

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Details

C349S086000, C349S169000, C349S176000, C349S185000, C252S299010

Reexamination Certificate

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06950157

ABSTRACT:
A display sheet comprising a substrate carrying layers of material; including a polymer-dispersed cholesteric liquid-crystal layer having a first high reflection state within a portion of the visible light spectrum and a second less-reflective state in said spectrum, said states being changeable by electric field between the two states which states can be maintained in the absence of an electric field; a first transparent conductor disposed over the polymer-dispersed cholesteric liquid-crystal layer; a complementary light-absorbing layer below the polymer-dispersed cholesteric liquid-crystal layer having relatively high light absorption within the spectrum of the high-reflection state of the polymer-dispersed cholesteric liquid-crystal layer and having relatively less light absorption in the spectrum complementary to that of the high reflection state of the polymer-dispersed cholesteric liquid-crystal layer; and a reflective second conductor under said complementary light-absorbing layer reflecting light received from the complementary light-absorbing layer back through the complementary light-absorbing layer.

REFERENCES:
patent: 3600060 (1971-08-01), Kettering et al.
patent: 3816786 (1974-06-01), Churchill et al.
patent: 4435047 (1984-03-01), Fergason
patent: 5251048 (1993-10-01), Doane et al.
patent: 5437811 (1995-08-01), Doane et al.
patent: 5532851 (1996-07-01), Usami
patent: 5691790 (1997-11-01), Havens et al.
patent: 6211931 (2001-04-01), Fukao et al.
patent: 6359673 (2002-03-01), Stephenson
patent: 6392725 (2002-05-01), Harada et al.
patent: 6433843 (2002-08-01), Okada et al.
patent: 6556262 (2003-04-01), Stephenson et al.
patent: 6639637 (2003-10-01), Stephenson
patent: 6667785 (2003-12-01), Stephenson
patent: 6690447 (2004-02-01), Stephenson et al.
patent: 2001/0033351 (2001-10-01), Takami et al.
patent: 1 115 026 (2001-07-01), None

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