Liquid crystal cells – elements and systems – Particular structure – Lens or prism separate from projection system
Patent
1995-03-20
1998-07-14
Gross, Anita Pellman
Liquid crystal cells, elements and systems
Particular structure
Lens or prism separate from projection system
349 62, 349 95, G02F 11335
Patent
active
057812578
ABSTRACT:
A flat panel display incorporates an array of color separation microlenses. Each color separation microlens in the array is a single, micro-optical element which disperses color by orders to distinct color spots and focuses these color spots to related liquid crystal sub-pixels located in a common plane. Substantially all of the areas of the color spots fall directly and only on the liquid crystal sub-pixels. Little, if any, light energy is lost by falling outside areas occupied by the individual liquid crystal sub-pixels. Because the color separation microlenses provide the color separation, no color filter is required in the flat panel display. Eliminating the color filters eliminates light losses which are incurred when transmitting light through a color filter. The flat panel display makes more efficient use of light transmitted through the components of the display than was possible with prior art flat panel displays.
REFERENCES:
patent: 3797914 (1974-03-01), Aiken
patent: 4686519 (1987-08-01), Yoshida et al.
patent: 4690511 (1987-09-01), Watanabe
patent: 4798448 (1989-01-01), van Raalte
patent: 4861140 (1989-08-01), Lucitte et al.
patent: 5013133 (1991-05-01), Buralli et al.
patent: 5098184 (1992-03-01), Vander Brandt
patent: 5139609 (1992-08-01), Fields et al.
patent: 5159478 (1992-10-01), Akiyama et al.
patent: 5161042 (1992-11-01), Hamada
patent: 5161059 (1992-11-01), Swanson et al.
patent: 5270859 (1993-12-01), Wirth et al.
patent: 5548349 (1996-08-01), Mizuguchi et al.
H. Dammann, "Color Separation Gratings", Aug., 1978, Applied Engineering, vol. 17, No. 15.
Wada, Osamu, "Ion-Beam Etching of InP and Its Application to the Fabrication of High Radiance InGaAsP/InP Light Emitting Diodes", Oct., 1984, J. Electrochem. Soc.: Solid-State Science and Technology, vol. 131, 10.
George Gal, "Micro-optics Technology Development For Advanced Sensors" from proceedings of a conference held Jul. 12-13, 1993, San Diego, California and reprinted in Critical Reviews of Optical Science and Technology, vol. CR49, copyright 1994 by the Society of Photo-optical Instrumentation Engineers.
Michael W. Farn, Margaret B. Stern, Wilfrid B. Veldkamp, and Shirley S. Medeiros, "Color Separation by Use of Binary Optics", Aug. 1, 1993, Optics Letters, vol. 18, No. 15.
George Gal, B. Herman, W. Anderson, R. Whitney, and H. Morrow, "Micro-optics Technology and Sensor Systems Applications", Aug., 1993, NASA Conference Publication 3227 of Binary Optics Conference, Huntsville, Alabama (1993).
B. Herman and G. Gal, "Theory of Dispersive Microlenses", Aug., 1993, NASA Conference Publication 3227 of Binary Optics Conference, Huntsville, Alabama (1993).
W. W. Anderson, J. Marley, and G. Gal, "Fabrication of Micro-Optical Devices", Aug., 1993, NASA Conference Publication 3227 of Binary Optics Conference, Huntsville, Alabama (1993)
D. Shough, B. Herman, and G. Gal, "Measurements of Microlens Performance", Aug., 1993, NASA Conference Publication 3227 of Binary Optics Conference, Huntsville, Alabama (1993).
Michael W. Farn, Robert E. Knowlden, Margaret B. Stern, and Wilfrid B. Veldkamp, "Color Separation Gratings", Conference on Binary Optics, 1993.
Gal George
Herman Bruce J.
Gross Anita Pellman
Lockheed Martin Missiles & Space Co
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