Display device comprising fluorescent enhanced reflective hologr

Details Display device comprising fluorescent enhanced reflective hologr Display device comprising fluorescent enhanced reflective hologr

1994-03-07

1997-01-14

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 19, 349 70, 349112, 349113, G02B 532, G02F 11335

Patent

active

055945600

ABSTRACT:
A display device (10) includes a display panel, such as a liquid crystal panel (12), in combination with a reflective holographic optical element (14) that redirects ambient light for illuminating the display. The light redirected by the holographic element is limited to a predetermined spectral band. Fluorescent film (16) is included for absorbing light outside the spectral band of the holographic element and re-emitting light within the spectral band to increase the light redirected by the holographic element and thus increase the apparent brightness of the display.

REFERENCES:
patent: 4416515 (1983-11-01), Funada et al.
patent: 4978183 (1990-12-01), Vick
patent: 4984872 (1991-01-01), Vick
patent: 4989956 (1991-02-01), Wu et al.
patent: 5198912 (1993-03-01), Ingwall et al.
patent: 5280548 (1994-01-01), Atwater et al
Magarinos, et al., Engineering, "Holographic Mirrors," vol. 24, No. 5, Sep./Oct. 1985, pp. 769-780.
Ingwall et al., SPIE, "Hologram Recording With a New Polaroid Photopolymer System," vol. 523, (1985), pp. 306-312.
Ingwall et al., SPIE, "The Mechanism of Hologram Formation in DMP-128 Photopolymer," vol. 883, (1988), pp. 102-105.
Ingram et al., SPIE, "Hologram Liquid Crystal Composites," vol. 1555, (1991), pp. 279-290.
Tedesco et al., "Holographic Diffusers for LCD Backlights and Projection Screens" Kaiser Optical Systems, Inc. Ann Arbor, MI. 1993 SID International Symposium Digest of Technical Papers, May 1993, pp. 29-32.

Affiliated with

Also associated with

Rating

Display device comprising fluorescent enhanced reflective hologr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device comprising fluorescent enhanced reflective hologr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device comprising fluorescent enhanced reflective hologr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1392461