Optical: systems and elements – Optical modulator – Having particular chemical composition or structure
Reexamination Certificate
2006-06-20
2006-06-20
Thompson, Timothy (Department: 2873)
Optical: systems and elements
Optical modulator
Having particular chemical composition or structure
C359S322000, C359S252000, C349S104000, C349S105000
Reexamination Certificate
active
07064886
ABSTRACT:
A light regulating device and photonic crystal display device utilizing bandgap controls including a photonic crystal including a material that is capable of varying its refractive index in accordance with an electric field, the photonic crystal having a photonic bandgap in a specific frequency range; and an upper transparent electrode and a lower transparent electrode arranged on an upper side and a lower side of the photonic crystal, respectively, to which a voltage is applied, wherein a size of the photonic bandgap of the photonic crystal is controlled by the voltage applied between the upper transparent electrode and the lower transparent electrode. With the present invention, a reflection-type or penetration-type display is available which has a simple pixel structure, a high light efficiency, and a high color contrast ratio, the display using high reflection factors depending on color ranges of a photonic crystal.
REFERENCES:
patent: 5281370 (1994-01-01), Asher et al.
patent: 5973823 (1999-10-01), Koops et al.
patent: 6940577 (2005-09-01), Kozhukh
patent: 2001/0028482 (2001-10-01), Nishioka
patent: 2004/0001246 (2004-01-01), Albu et al.
patent: 2001-142099 (2001-05-01), None
patent: 2003-344831 (2003-12-01), None
patent: WO 00/77566 (2000-12-01), None
Busch et al., “Photonic Band Gap Formation in Certain Self-Organizing System” Sep. 1998, vol. 58, pp. 3896-3908.
Bartolino et al. Pyroelectric Properties of Polymer Dispersed Ferroelectric Liquid Crystals, Journal of Applied Physics 84(5), 1998, pp. 28-35-2840.
Shimoda, Y., et al., **, Applied Physics Letters, vol. 79, No. 22, pp. 3627-3629, (Nov. 26, 2001) ** Entitled: “Electric field tuning of a stop band in a reflection spectrum of synthetic opal infiltrated with nematic liquid crystal”.
Kim Ji-deog
Lee Hong-seok
Lee Suk-han
Moon Il-kwon
Lee & Morse P.C.
Samsung Electronics Co,. Ltd.
Thompson Timothy
LandOfFree
Light regulating device and photonic crystal display... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light regulating device and photonic crystal display..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light regulating device and photonic crystal display... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3666325