Light diffusion sheet and backlight unit using the same

Details Light diffusion sheet and backlight unit using the same Light diffusion sheet and backlight unit using the same

2005-03-29

2005-03-29

Cariaso, Alan (Department: 2875)

Illumination

Light fiber, rod, or pipe

Diffuser or diffusing of incident light

C362S330000, C362S355000, C359S599000

Reexamination Certificate

active

06871994

ABSTRACT:
A light diffusion sheet comprising a transparent base material sheet; a light diffusion layer laminated on a surface of the base material sheet and containing beads dispersed within a binder; and a sticking-inhibiting layer laminated on a rear face of the base material sheet, wherein the binder of the light diffusion layer contains a thermosetting resin and the sticking-inhibiting layer is a resin layer containing an ionizing radiation curable resin. In the light diffusion sheet of the invention, which employs an ionizing radiation curable resin for the binder of the sticking-inhibiting layer, the cross-linking density of the binder can be increased, whereby the wear resistance of the sticking-inhibiting layer as well as the wear resistance of the rear face of the light diffusion sheet can be increased. Further, possible occurrence of scratches in the sticking-inhibiting layer, which is attributable to the contact between the sticking-inhibiting layer and the beads of the light diffusion layer, can be effectively avoided.

REFERENCES:
patent: 5909314 (1999-06-01), Oka et al.
patent: 5919555 (1999-07-01), Yasuda et al.
patent: 6111699 (2000-08-01), Iwata et al.
patent: 6217176 (2001-04-01), Maekawa
patent: 07-008803 (1995-02-01), None
patent: 11-030708 (1999-02-01), None

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