Optical functional sheet

Details Optical functional sheet Optical functional sheet

2005-08-30

2005-08-30

Dunn, Drew A. (Department: 2872)

Optical: systems and elements

Diffusing of incident light

C359S615000

Reexamination Certificate

active

06937399

ABSTRACT:
An optical functional sheet characterized in that, at least within the sheet, a light diffusing phase and a transparent phase each extend along a direction perpendicular to the surface of the sheet and are alternately arranged along the sheet surface direction. The optical functional sheet has a smooth surface that can be surface-treated or laminated with another functional sheet and is provided with a light collecting effect due to the internal arrangements thereof that is capable of collecting both light diverging transversely and light diverging longitudinally using a single sheet. Thus, the sheet can be useful for applications such as the backlight for liquid crystal displays.

REFERENCES:
patent: 5066099 (1991-11-01), Yoshida et al.
patent: 5161041 (1992-11-01), Abileah et al.
patent: 6219119 (2001-04-01), Nakai
patent: 6297908 (2001-10-01), Suga
patent: 2001/0030638 (2001-10-01), Kashima
patent: 2002-214411 (2002-07-01), None

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