OPTICAL SHEET, SURFACE LIGHT SOURCE DEVICE AND DISPLAY DEVICE

An optical sheet 60 includes a substrate layer 65, a mat layer 70 and a prism layer 80. The mat layer includes first light diffusing particles 71, second light diffusing particles 72 and a binder resin 73. The refractive index n2 of the second light diffusing particles differs from the refractive in...

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Bibliographische Detailangaben
1. Verfasser:	KITANO, Keiko
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	An optical sheet 60 includes a substrate layer 65, a mat layer 70 and a prism layer 80. The mat layer includes first light diffusing particles 71, second light diffusing particles 72 and a binder resin 73. The refractive index n2 of the second light diffusing particles differs from the refractive index nb of the binder resin and the refractive index n1 of the first light diffusing particles. The average particle diameter d1 of the first light diffusing particles, the average particle diameter d2 of the second light diffusing particles, and the thickness tb of the mat layer in those regions where no first light diffusing particles and no second light diffusing particles are present, satisfy the following relation: d2