Composite optical reflective film and preparation method therefor
AssigneeNingbo Solartron Technology Co., Ltd.
InventorsYadong Jin, Xiaoxi Zhu
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Abstract
The present invention provides a composite optical reflective film for a backlight source system and a preparation method therefor. The composite optical reflective film comprises a transparent diaphragm and a reflective diaphragm, wherein the reflective diaphragm is spliced to the transparent diaphragm through an adhesive, and the other face of the reflective diaphragm is coated with a reflective coating. The composite optical reflective film has good dimension stability, is not easy to warp and deform, has a higher reflectivity, has a simple preparation process and is easy to operate.
Claims4
A composite optical reflective film comprising a transparent diaphragm and a white reflective diaphragm having two sides, wherein
- the reflective diaphragm is adhered on one side to the transparent diaphragm with an adhesive and coated on the other side with an ultraviolet-resistant highly reflective coating;
- the ultraviolet-resistant highly reflective coating comprises silane-crosslinked polyolefin, zinc oxide and/or titanium dioxide, wherein zinc oxide and/or titanium dioxide in the coating is 50-70% (weight percentage);
- and the ultraviolet-resistant highly reflective coating is also added with 0.3% of a hindered amine photostabilizer and 0.3% of a benzotriazole ultraviolet absorber, in which the percentage is the weight percentage;
- and
- the adhesive consists of a phenolic resin, an inorganic powder filler, and a solvent.
A composite optical reflective film comprising a transparent diaphragm and a white reflective diaphragm having two sides, wherein
- the transparent diaphragm is made of material selected from polyethylene terephthalate (PET), polypropylene (PP) or polycarbonate (PC);
- the reflective diaphragm is adhered on one side to the transparent diaphragm with an adhesive and coated on the other side with an ultraviolet-resistant highly reflective coating;
- the ultraviolet-resistant highly reflective coating is a complex of the silane-crosslinked polyolefin, titanium dioxide and zinc oxide, wherein zinc oxide and titanium dioxide constitute 50-70% of the coating (weight percentage);
- and the ultraviolet-resistant highly reflective coating is also added with a hindered amine photostabilizer and a benzotriazole ultraviolet absorber;
- and
- the adhesive consists of a phenolic resin, an inorganic powder filler, and a solvent;
- the phenolic resin in the adhesive is a high ortho thermosetting phenolic resin, and the adhesive is a composite adhesive.
Dependencies are inferred from the claim text.