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Photodiffusion sheet and backlight unit using this

  • US 6,852,396 B1
  • Filed: 09/10/1999
  • Issued: 02/08/2005
  • Est. Priority Date: 09/17/1998
  • Status: Expired due to Term
First Claim
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1. A light diffusing sheet comprising:

  • a transparent base sheet; and

    a light diffusing layer provided on a front surface side of the base sheet, wherein the light diffusing layer is formed by dispersing resinous beads and a fine inorganic filler into a binder, and the fine inorganic filler is colloidal silica having an average particle diameter that is in a range of 5 nanometers to 50 nanometers.

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