LENS SHEET, SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

Title:

LENS SHEET, SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

Document Type and Number:

WIPO Patent Application WO/2008/069320

Kind Code:

A1

Abstract:

In a prism sheet (4), a plurality of prism rows (411) are formed in parallel on a first surface of a sheet-like translucent base material (43), and a light diffusion layer (45) containing light diffusing materials (452, 454) in a translucent resin (451) is formed on a second surface. The ratio of internal haze to the total haze of the light diffusion layer (45) is 20-90%, and a content rate of the light diffusion material having a particle diameter of 1-4μm to the total quantity of the light diffusion materials (452, 454) is 50vol% or more.

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Inventors:

MURAYAMA YOSHIAKI (JP)
NUMATA OSAMU (JP)

Application Number:

PCT/JP2007/073715

Publication Date:

June 12, 2008

Filing Date:

December 07, 2007

Export Citation:

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Assignee:

MITSUBISHI RAYON CO (JP)
MURAYAMA YOSHIAKI (JP)
NUMATA OSAMU (JP)

International Classes:

G02B5/02; F21V5/00; F21V5/02; G02B5/04; G02F1/13357

Foreign References:

JPH11133214A	1999-05-21
JP2005321681A	2005-11-17
JP2007304553A	2007-11-22
JP2007293316A	2007-11-08

Attorney, Agent or Firm:

YAMASHITA, Johei (Toranomon 40th MT Bldg.13-1, Toranomon 5-chome,Minato-k, Tokyo 01, JP)

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