Display illumination system and manufacturing method thereof

Details Display illumination system and manufacturing method thereof Display illumination system and manufacturing method thereof

2008-01-01

2008-01-01

Kianni, K. Cyrus (Department: 2883)

Optical waveguides

With optical coupler

Switch

C385S015000, C385S129000

Reexamination Certificate

active

07315671

ABSTRACT:
An illumination system (8) comprises an optical waveguide (18) which is made from optically transparent components and has four end faces (10, 10′). A light source (12) whose light is coupled into the optical waveguide (18) via one of the end faces (10), is situated opposite this end face (10). The optical waveguide (18) has a light guide (30). A number of fibers (34) are attached to a surface (32) of the light guide (30). The fibers (34) have birefringent properties. A preferred method of providing the birefringent properties is to stretch fibers (34) of a suitable polymer plastic material in their longitudinal direction. The light from the light source (12) will be polarized by the fibers (34) and polarized light will be outcoupled from the optical waveguide (18) via an exit surface (16). The illumination system (8) may be used for front or back lightning of LCD panels for e.g. mobile phones, PDA's, etc.

REFERENCES:
patent: 4711525 (1987-12-01), Feth
patent: 4735506 (1988-04-01), Pavlath
patent: 5037205 (1991-08-01), Pavlath
patent: 5361320 (1994-11-01), Liu et al.
patent: 5479542 (1995-12-01), Krivoshlykov
patent: 6282341 (2001-08-01), Digonnet et al.
patent: 6845190 (2005-01-01), Smithwick et al.
patent: 6876806 (2005-04-01), Lazarev et al.
patent: 2002/0090188 (2002-07-01), Lazarev et al.
patent: 2003/0034431 (2003-02-01), Mandella et al.
patent: 2003/0058383 (2003-03-01), Jagt et al.
patent: 2006/0103850 (2006-05-01), Alphonse et al.
patent: 2006/0291789 (2006-12-01), Folkenberg et al.
patent: 1 258 746 (2002-11-01), None
patent: WO 97/08582 (1997-03-01), None
patent: WO 98/12593 (1998-03-01), None

Affiliated with

Also associated with

Rating

Display illumination system and manufacturing method thereof 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 illumination system and manufacturing method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display illumination system and manufacturing method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2801760