LIGHT-DIFFUSING SHEET FOR BACK LIGHT UNIT OF LCD

A light diffusion sheet for an LCD backlight unit is provided to improve perpendicularity luminance by using transparent resin particles having a diameter of 5 to 60 micro meter. A light diffusion sheet(10) for an LCD backlight unit comprises a transparent polyester substrate film(1) and a light dif...

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Bibliographische Detailangaben
Hauptverfasser:	SONG, JEONG HAN, KIM, SANG PIL, LEE, MOON BOK, SUH, KI BONG
Format:	Patent
Sprache:	eng
Schlagworte:	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 NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	A light diffusion sheet for an LCD backlight unit is provided to improve perpendicularity luminance by using transparent resin particles having a diameter of 5 to 60 micro meter. A light diffusion sheet(10) for an LCD backlight unit comprises a transparent polyester substrate film(1) and a light diffusing layer. The light diffusion sheet is formed by coating coating-solutions, including transparent binder resin(3) and transparent resin particle(2), in at least one side of the substrate film. The transparent resin particle is a silicon particle or a particle in which silicon is coated on the surface of transparent resin particle. The resin particle has a particle diameter of 5 to 60 micro meter. The transparent resin particle comprises one inorganic particle selected from a group configured with synthetic silica, glass bead and diamond together with the silicon particle or the particle where the silicon is coated in the surface of the transparent resin particle.