Polychromal segmented balls for a twisting ball display

Details Polychromal segmented balls for a twisting ball display Polychromal segmented balls for a twisting ball display

1995-12-15

1998-02-10

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave temporal modulation

345107, 427214, G02B 2600

Patent

active

057175144

ABSTRACT:
A multisegmented ball for an electrical twisting ball display device made up of spheroidal balls rotatably disposed in an elastomer substrate. The ball is composed of segments arrayed substantially parallel to one another, each segment being adjacent to at least one other segment and to no more than two other segments, adjacent segments being adjoined to one another at substantially planar interfaces. The segments include a first segment having a first thickness and a first optical modulation characteristic, a second segment having a second thickness and a second optical modulation characteristic, and a third segment having a thickness different from at least one of the first and second thicknesses and an optical modulation characteristic different from at least one of the first and second optical modulation characteristics. The ball has an anisotropy for providing an electrical dipole moment, the electrical dipole moment rendering the ball electrically responsive such that when the ball is rotatably disposed in a nonoscillating electric field while the electrical dipole moment of the ball is provided, the ball tends to rotate to an orientation in which the electrical dipole moment aligns with the field. A method and apparatus for fabricating the ball are also disclosed.

REFERENCES:
patent: 4126854 (1978-11-01), Sheridon
patent: 4143103 (1979-03-01), Sheridon
patent: 4261653 (1981-04-01), Goodrich
patent: 4268413 (1981-05-01), Dabisch
patent: 4299880 (1981-11-01), Arens
patent: 4374889 (1983-02-01), Arens
patent: 4418098 (1983-11-01), Maistrovich
patent: 4438160 (1984-03-01), Ishikawa et al.
patent: 4500172 (1985-02-01), Gagnon et al.
patent: 4688900 (1987-08-01), Doane et al.
patent: 4695528 (1987-09-01), Dabisch et al.
patent: 4729687 (1988-03-01), Arens
patent: 4810431 (1989-03-01), Leidner
patent: 4837071 (1989-06-01), Tagoku et al.
patent: 4877253 (1989-10-01), Arens
patent: 4890902 (1990-01-01), Doane et al.
patent: 4919521 (1990-04-01), Tada et al.
patent: 4948232 (1990-08-01), Lange
patent: 4991941 (1991-02-01), Kalmanash
patent: 4994204 (1991-02-01), Doane et al.
patent: 5075186 (1991-12-01), Sheridon
patent: 5155607 (1992-10-01), Inoue et al.
patent: 5157011 (1992-10-01), Okabe et al.
patent: 5189658 (1993-02-01), Moses
patent: 5219820 (1993-06-01), Morohoshi et al.
patent: 5249000 (1993-09-01), Okabe et al.
patent: 5251048 (1993-10-01), Doane et al.
patent: 5262098 (1993-11-01), Crowley et al.
patent: 5262374 (1993-11-01), Okabe et al.
patent: 5274460 (1993-12-01), Yamada et al.
patent: 5315418 (1994-05-01), Sprague et al.
patent: 5344594 (1994-09-01), Sheridon
patent: 5354598 (1994-10-01), Arens
patent: 5363222 (1994-11-01), Ledebuhr
patent: 5383008 (1995-01-01), Sheridon
patent: 5384067 (1995-01-01), Doane et al.
patent: 5389426 (1995-02-01), Arens et al.
patent: 5389945 (1995-02-01), Sheridon
patent: 5397503 (1995-03-01), Yuasa et al.
patent: 5432526 (1995-07-01), Hyatt
patent: 5432534 (1995-07-01), Maruyama et al.
patent: 5469020 (1995-11-01), Herrick
Business Wire (available through Dialog, File 610), "S.I.P. and ETIP to jointly develop the world's first eraseable and reusable paper for printing," Aug. 19, 1991.
IEEE Gird, Jan. 1996, pp. 17-20 (includes article entitled "Electric Paper: A Research Odyssey" and corresponding calendar listing at p. 19).
Philip Yam, "Plastics Get Wired", Scientific American, Jul. 1995, pp. 82-87.
OEP (Office Equipment and Products), "Thermal Film Medium from Ricoh Permits Rewriting", Dec. 1993, p. 610.
Peter Tebbutt, "Now you see it . . . now you don't", New Scientist, May 30, 1992, p. 17.
J.D. Mosley, "Flexible LCD is lighter and thinner than glass", EDN, Oct. 31, 1985, p. 93.
A. Chiang, D. Curry and M. Zarzycki, "A Stylus Writable Electrophoretic Display Device", SID 79 Digest, pp. 44-45.
N. K. Sheridon and M. A. Berkovitz, "The Gyricon--A Twisting Ball Display", Proceedings of the SID, vol. 18/3 & 4, 1977, pp. 289-293.
R. Yamaguchi and S. Sato, "Light Scattering and Reflection Properties in Polymer Dispersed Liquid Crystal Cells with Memory Effects", IEICE Trans. Electron., vol. E 78 C No. 1, Jan. 1995, pp. 106-110.
Lawrence L. Lee, "A Magnetic Particles Display," IEEE Transactions on Electron Devices, vol. ED-22, No. 9, Sep. 1975, pp.758-765.
Richard A. Strain, "Additive Color Mixture with Fluorescent Pigments and Special Illumination," Color Research and Applications, vol. 1, No. 3, Fall 1976, pp.146-147.

Affiliated with

Also associated with

Rating

Polychromal segmented balls for a twisting ball 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 Polychromal segmented balls for a twisting ball display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polychromal segmented balls for a twisting ball display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2081652