Hologram color filter, liquid crystal display device using the s

Details Hologram color filter, liquid crystal display device using the s Hologram color filter, liquid crystal display device using the s

1994-01-28

1996-04-09

Turner, Samuel A.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 22, 359 53, G02B 532

Patent

active

055067018

ABSTRACT:
The present invention has for its object to spectrally diffract white light by a hologram for the illumination of a given position, thereby achieving some considerable improvement in the efficiency of utilization of backlight for liquid crystal display, etc., and makes use of a difference in the angle of diffraction of a hologram 5 depending on wavelength to diffract the wavelength components of the colors displayed into liquid crystal cells R, G and B of a liquid crystal display element 10 located at the back side of the hologram 5, thereby achieving some considerable improvement in the efficiency of utilization of backlight. As the hologram 5, an array form of converging unit holograms with the efficiency of diffraction independent, or less dependent, on wavelength, or other equivalent hologram arrangement may be used.

REFERENCES:
patent: 4807978 (1989-02-01), Grinberg et al.
patent: 5103325 (1992-04-01), Andrews et al.
patent: 5267060 (1993-11-01), Colton

Affiliated with

Also associated with

Rating

Hologram color filter, liquid crystal display device using the s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hologram color filter, liquid crystal display device using the s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hologram color filter, liquid crystal display device using the s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-142627