Diffuser plate with cambered and prismatic microstructures...

Details Diffuser plate with cambered and prismatic microstructures... Diffuser plate with cambered and prismatic microstructures...

2007-10-08

2010-10-05

Negron, Ismael (Department: 2885)

Illumination

Light source and modifier

Including translucent or transparent modifier

C362S606000, C362S620000, C362S097200, C362S311010, C362S330000, C349S064000

Reexamination Certificate

active

07806567

ABSTRACT:
A backlight module includes a light source module and a diffuser plate. The diffuser plate has a plate body, a plurality of light-scattering areas and a plurality of light-gathering areas. The light-scattering areas and the light-gathering areas are alternately disposed on a light-entrance surface or a light-exit surface of the plate body. The light-scattering area includes a plurality of cambered units while each cambered unit has a convex cambered surface. The light-gathering area includes a plurality of prism lenses. Two side surfaces of the prism lenses intersect at an angle θ.

REFERENCES:
patent: 3988609 (1976-10-01), Lewin
patent: 5280371 (1994-01-01), McCartney, Jr. et al.
patent: 7033057 (2006-04-01), Su et al.
patent: 7213936 (2007-05-01), Wang et al.
patent: 2005/0013001 (2005-01-01), Pan et al.
patent: 1869737 (2006-11-01), None
patent: 1 586 920 (2005-10-01), None
patent: 2002082623 (2002-03-01), None
patent: 2004127680 (2004-04-01), None
patent: M266469 (2005-06-01), None
English language translation of M266469, Published Jun. 1, 2005.
English language translation of abstract of JP2002082623, Published Mar. 22, 2002.
English language translation of abstract of JP2004127680, Published Jan. 22, 2004.
Chinese language Office Action dated Nov. 16, 2007.
English language translation of abstract and pertinent parts of CN 1869737.

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