Friction-resistant type light diffusion film and backlighting device

The invention relates to a friction-resistant type light diffusion film and a backlighting device. The light diffusion film comprises a base material, a light diffusion layer and a bonding-resistant layer, wherein the arithmetical mean deviation Ra of the profile and the microscopic roughness height...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG PENG, ZHU YEJIAN, HOU JINGBIN
Format:	Patent
Sprache:	chi ; eng
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 LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a friction-resistant type light diffusion film and a backlighting device. The light diffusion film comprises a base material, a light diffusion layer and a bonding-resistant layer, wherein the arithmetical mean deviation Ra of the profile and the microscopic roughness height Rz at ten o'clock of the surface of the light diffusion layer meet the following requirements: Ra is greater than or equal to 1mu and less than or equal to 5mu while Rz is greater than or equal to 5mu and less than or equal to 25mu; the arithmetical mean deviation Ra of the profile and the microscopic roughness height Rz at ten o'clock of the surface of the bonding-resistant layer meet the following requirements: Ra is greater than or equal to 0.2mu and less than or equal to 0.5mu while Rz is greater than or equal to 2mu and less than or equal to 7mu. The light diffusion film provided by the invention are prevented from being scratched even if the contact friction is caused among all layer surfaces of the light di