Color microdisplays and methods of manufacturing same

Details Color microdisplays and methods of manufacturing same Color microdisplays and methods of manufacturing same

1995-10-13

1998-04-21

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal optical element

Liquid crystal lenses other than for eyewear

349 57, 349108, G02F 11335, G02F 113

Patent

active

057423733

ABSTRACT:
A color microdisplay utilizes diffraction gratings to provide an array of high efficiency color pixels. The microdisplay includes a semiconductor substrate and source of light disposed adjacent thereto. A cover plate may be disposed above the substrate and has a layer of conductive material on a surface of the cover plate opposite the substrate. An optically active material, such as liquid crystal material, may be disposed between the substrate and the cover plate. An array of pixels are formed on the substrate. The pixel array includes an array of diffraction grating elements. Each element includes one or more diffraction gratings. The pitch of each diffraction grating can be a function of the angle of the incident light and the desired diffraction output spectrum. An optical system directs the diffracted light from each grating through the optically active material into viewing optics.

REFERENCES:
patent: 25169 (1962-05-01), Glenn
patent: 4256787 (1981-03-01), Shaver et al.
patent: 4361384 (1982-11-01), Bosserman
patent: 4636866 (1987-01-01), Hattori
patent: 4751509 (1988-06-01), Kubota et al.
patent: 4856869 (1989-08-01), Sakata et al.
patent: 4934773 (1990-06-01), Becker
patent: 5003300 (1991-03-01), Wells
patent: 5013141 (1991-05-01), Sakata
patent: 5048077 (1991-09-01), Wells et al.
patent: 5113272 (1992-05-01), Reamey
patent: 5155615 (1992-10-01), Tagawa
patent: 5182665 (1993-01-01), O'Callaghan et al.
patent: 5231432 (1993-07-01), Glenn
patent: 5237435 (1993-08-01), Kurematsu et al.
patent: 5299289 (1994-03-01), Omae et al.
patent: 5311360 (1994-05-01), Bloom et al.
patent: 5321416 (1994-06-01), Bassett et al.
patent: 5347378 (1994-09-01), Handschy et al.
patent: 5371618 (1994-12-01), Tai et al.
patent: 5485172 (1996-01-01), Sawachika et al.
patent: 5486946 (1996-01-01), Jachimowicz et al.
patent: 5539422 (1996-07-01), Heacock et al.
Alvelda et al.; "Ferroelectric Microdisplays Using Distortion-Compensated Pixel Layouts"; SID 95 Digest pp. 931-933.
Phillip Alvelda; "High-Efficiency Color Microdisplays"; SID 95 Digest pp. 307-311.
Worboys et al.; "Miniature Display Technologies for Integrated Helmut Systems"; GEC Journal of Research. vol. 10, No. 2 pp. 111-118 (1993).
Farn et al.; "Color Separation by use of Binary Optics", Optics Letters, vol. 18:15 pp. 1214-1216 (1993).
Phillip Alvelda; "VLSI Microdisplays and Optoelectric Technology" (MIT) pp. 1-93 (1995).
Phillip Alvelda; "VLSI Microdisplay Technology" Oct. 14, 1994.

Affiliated with

Also associated with

Rating

Color microdisplays and methods of manufacturing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color microdisplays and methods of manufacturing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color microdisplays and methods of manufacturing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2063342