Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...
Reexamination Certificate
2006-11-07
2006-11-07
Padgett, Marianne (Department: 1762)
Coating processes
Direct application of electrical, magnetic, wave, or...
Polymerization of coating utilizing direct application of...
C427S508000, C427S162000, C427S384000
Reexamination Certificate
active
07132133
ABSTRACT:
This invention solves the technical problem of compensating for the angular dependence of the contrast in optical devices comprising liquid crystal displays (LC optical light shutters, which operate on the principle of electrically controlled optical birefringence), with the aid of a compensation layer exhibiting optically negative birefringence, which enables the angular compensation of the LC layer birefringence in the state in which the LC molecules are homeotropically aligned (typical optically positive birefringence). The process for the manufacture of the optically negatively birefringent compensation layer is devised on the controlled spontaneous deformation of the polymer molecules during the polymerization procedure. The manufacturing process is feasible by the employment of known and well-controllable technical procedures, and enables the mass production of compensation layers. The invention solves the problem of manufacturing a compensation layer exhibiting the required optically negative birefringence, as well as the construction/manufacturing of the optical light shutter, which utilizes such a compensation film.
REFERENCES:
patent: 4259407 (1981-03-01), Tada et al.
patent: 4983335 (1991-01-01), Matsuo et al.
patent: 5178710 (1993-01-01), Hikmet et al.
patent: 5178933 (1993-01-01), Yoshida et al.
patent: 5245456 (1993-09-01), Yoshimi et al.
patent: 5298199 (1994-03-01), Hirose et al.
patent: 5480964 (1996-01-01), Harris et al.
patent: 5528400 (1996-06-01), Arakawa
patent: 5646703 (1997-07-01), Kamada et al.
patent: 5798808 (1998-08-01), Van Haaren et al.
patent: 5986734 (1999-11-01), Winker et al.
patent: 5998556 (1999-12-01), Kanto et al.
patent: 2005/0189516 (2005-09-01), Wellinghoff et al.
patent: 2006/0043980 (2006-03-01), Verstegen et al.
patent: 758136 (1956-09-01), None
Blinc Robert
Copic Martin
Marin Bojan
Petkov{hacek over (s)}ek Rok
Pir{hacek over (s)} Janez
Breiner & Breiner, LLC
Institut Jozef Stefan
Padgett Marianne
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