OPTICAL SHEET, SURFACE LIGHT SOURCE DEVICE, AND DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide an optical sheet capable of effectively preventing occurrence of glare.SOLUTION: An optical sheet 60 includes a base material layer 65, a mat layer 70, and a prism layer 80. The mat layer contains first light-diffusing particles 71, second light-diffusing particles 7...

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Bibliographische Detailangaben
1. Verfasser:	KITANO KEIKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING 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 NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an optical sheet capable of effectively preventing occurrence of glare.SOLUTION: An optical sheet 60 includes a base material layer 65, a mat layer 70, and a prism layer 80. The mat layer contains first light-diffusing particles 71, second light-diffusing particles 72, and a binder resin 73. Each of the second light-diffusing particles has a refractive index nthat is different from a refractive index nof the binder resin and a refractive index nof each of the first light diffusion particles. An average particle diameter dof the first light diffusion particles, an average particle diameter dof the second light diffusion particles, and a thickness tof the mat layer at a position having neither first light diffusion particles nor second light diffusion particles satisfy a relationship of d