Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1997-11-05
1999-09-28
Epps, Georgia
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359275, 349137, 348834, 348835, 348842, G02F 115, H04N 572
Patent
active
059597623
ABSTRACT:
A flexible panel is provided that is easily and conformingly applied to a curved display screen of a VDU to afford, in a lightweight manner, variably adjustable contrast enhancement of the VDU while simultaneously providing a decrease in the amount of ambient light reflected from the curved display screen. The flexible panel is a glass microsheet layered, on one side thereof, with an antireflection coating and, on the other side, with an electrochromic device. The electrochrmic device allows for variable adjustment of the contrast of the VDU as a function of the voltage applied across the electrochromic device. The flexible glass microsheet dually possesses the advantages of conventional rigid glass panels, such as excellent optical performance, high durability, capability of being coated with various optical coatings under extreme temperature, pressure and chemical conditions and the additional benfeit of physical flexibility. This flexibility allows for easy application to variously sized and shaped curved VDU display screens. The electrochromic device is a six-layered structure deposited, in order from the layer adjacent the panel: a 1 quarter wavelength (QW) alumina layer; a first indium-tin-oxide (ITO) layer; a tungsten trioxide (WO.sub.3) layer; a tantalum pentoxide (Ta.sub.2 O.sub.5) layer; a nickel-oxide (NiO) layer; and a second indium-tin-oxide (ITO) layer.
REFERENCES:
patent: 3034924 (1962-05-01), Kraus et al.
patent: 3432225 (1969-03-01), Rock
patent: 4804883 (1989-02-01), Muller et al.
patent: 4958917 (1990-09-01), Hashimoto et al.
patent: 5091244 (1992-02-01), Biornrd
patent: 5170291 (1992-12-01), Szczyrbowski et al.
patent: 5216542 (1993-06-01), Szczyrbowski et al.
patent: 5270858 (1993-12-01), Dickey
patent: 5279722 (1994-01-01), Szczyrbowski et al.
Edlou, S. M., Simons, J.C., Al-Jumaily, G. A., Raouf, N. A., Optical and Electrical Properties of Reactively Sputtered TiN, ZrN, and HfN Thin Films, Rancourt, J. D. (ed.), Optical Thin Films IV: New Development, SPIE Proceedings, 1994; 2262: 96-106.
Lockhart, L. and King, P., Three-Layered Reflection-Reducing Coatings, J. Opt. Soc. Am., 1947; 37:689-94.
Szczyrbowski, S.R., Szczyrbowski, K.H., Leybold, A.G., Simple Antireflection Coatings for Cathode Ray Tube and Other Display Devices, Hanau, West Germany, 1989.
Thetford, A., A Method of Designing Three-Layer Antireflection Coatings, Opt. Acta., 1969; 16(1): 37-43.
Saito, T., Kanna, K., Inoue, T., Morikawa, S., 5.2: Application of Engineering Film and Adhesive for Trinitron Tube, SID 95 Digest; 28-31, (1995).
Bandettini Steven P.
Brown Lindsey
Cumbo Michael J.
Hichwa Bryant P.
Mathew J. Gordon H.
Epps Georgia
Lester Evelyn A.
Optical Coating Laboratory, Inc.
LandOfFree
Variably adjustable contrast enhancement electrochromic panel ad does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variably adjustable contrast enhancement electrochromic panel ad, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variably adjustable contrast enhancement electrochromic panel ad will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-710050