Bulk diffuser for flat panel display

Details Bulk diffuser for flat panel display Bulk diffuser for flat panel display

G - Physics

02

F

G02F 1/1335 (2006.01) C08K 7/16 (2006.01) C08L 69/00 (2006.01) F21V 8/00 (2006.01) G02B 5/02 (2006.01) C08L 27/18 (2006.01) C08L 33/08 (2006.01) C08L 33/10 (2006.01) C08L 83/06 (2006.01)

Patent

CA 2501163

The invention features a bulk light diffuser material. The bulk light diffuser material may be a sheet or film comprising about 95 to about 99.8 percent by weight of polycarbonate and about 0.2 to about 2.5 percent by weight of a particulate light diffusing component, based on the total weight of the polycarbonate and the light diffusing particles (128). The sheet material has a percent transmittance of at least 70% and a haze of at least 10% measured according to the American Society for Testing and Materials (ASTM) standard D 1003.

L'invention concerne une matière constituant un diffuseur de lumière global. Cette matière peut être constituée d'une feuille ou d'un film comprenant 95 % environ à 99,8 % environ en poids de polycarbonate et 0,2 % environ à 2,5 % environ en poids, d'un composant diffusant de la lumière particulaire, en fonction du poids total du polycarbonate et des particules diffusant de la lumière (128). Le matériau formant feuille présente un facteur de transmission en pourcentage d'au moins 70 %, et une diffusion atmosphérique d'au moins 10 % mesurée selon la norme D 1 003 de l'ASTM (American Society for Testing Materials).

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