Light stabilizer, ultraviolet curing composition, brightness enhancement film, backlight module and display screen

The invention relates to an optical thin film, in particular to a light stabilizer, an ultraviolet curing composition, a brightness enhancement film, a backlight module and a display screen. In order to solve the technical problem that a light stabilizer in an existing yellowing-resistant brightness...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANG HAIJIANG, ZHANG YAN, LIU HENGXU, XUE YONGFU, LI GANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS 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 DYES FILLING PASTES FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING HETEROCYCLIC COMPOUNDS INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to an optical thin film, in particular to a light stabilizer, an ultraviolet curing composition, a brightness enhancement film, a backlight module and a display screen. In order to solve the technical problem that a light stabilizer in an existing yellowing-resistant brightness enhancement film is easily separated out from a light-cured resin layer forming a prism layer, the invention provides the light stabilizer, the ultraviolet light curing composition, the brightness enhancement film, the backlight module and the display screen. The light stabilizer has a reactive functional group which is a free radical polymerization group. The light stabilizer provided by the invention can be subjected to polymerization reaction with main resin through free radical polymerization groups. The modified triazine light stabilizer is added into the ultraviolet curing composition and can be subjected to free radical polymerization with other active components of the light-cured resin, so that the proble