Diffusion sheet and manufacturing method thereof

Details Diffusion sheet and manufacturing method thereof Diffusion sheet and manufacturing method thereof

2007-05-01

2007-05-01

O'Shea, Sandra (Department: 2875)

Illumination

Light fiber, rod, or pipe

Diffuser or diffusing of incident light

C362S355000, C362S330000, C359S599000, C349S064000

Reexamination Certificate

active

10863490

ABSTRACT:
A diffusion sheet structure in the direct type backlight module with anti-UV rays function and its manufacturing method discloses a diffusion sheet in the backlight module applied to TFT-LCD TV, and plural layer of the diffusion sheet made by a method of a multi-layer co-extrusion. The diffusion sheet advocates that while producing diffusion layer, at least a ultra-violet rays absorption layer set on the surface of diffusion layer at the same time to achieve insulating ultra-violet rays directly irradiated on the diffusion sheet and to avoid yellow and pyrolysis phenomenon occurred on the diffusion sheet. These results in avoiding the deviation caused from color temperature and chromaticity coordinate of TFT-LCD TV because of yellow diffusion sheet, then to achieve the purpose of improving product quality and materials lifespan.

REFERENCES:
patent: 4053208 (1977-10-01), Kato et al.
patent: 6709143 (2004-03-01), Harada et al.
patent: 6871994 (2005-03-01), Harada et al.
patent: 2002/0114169 (2002-08-01), Harada et al.
patent: 2002/0159003 (2002-10-01), Sato et al.
patent: 2003/0162860 (2003-08-01), Ohno et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3804107