Colorful optical film and preparation method and application structure thereof

Abstract

The invention discloses a colorful optical film and a preparation method and application structure thereof. The first coatings of the colorful optical film are organic and inorganic hybrid coatings and the second coatings are pure organic coatings; and the first coatings and the second coatings can be coatings undergoing nano imprinting treatment. The first coatings and the second coatings which both contain organic components are capable of improving the binding force between the adjacent coatings and beneficial for ensuring that the colorful optical film has favorable mechanical properties.Compared with the fragility of the pure inorganic coatings, the organic coatings have favorable ductility and are beneficial for ensuring that the colorful optical film has favorable ductility. Moreover, the organic coatings can be prepared by using a wet coating process so as to improve the preparation efficiency of the colorful optical film and reduce the overall preparation difficulty and cost.Furthermore, the organic coatings can be added with dyes to further enhance the color effect of the colorful optical film. After nano imprinting treatment is carried out on the coatings, the colorfuloptical film is capable of presenting an additional colorful effect.

Description

technical field [0001] The present application relates to the technical field of optical film preparation, and more specifically, relates to a colorful optical film and its preparation method and application structure. Background technique [0002] Colorful optical film is an optical film with viewing angle-dependent colorful effects and metallic luster; that is, colorful optical films will show different colors or metallic luster effects under different viewing angles, bringing users more Rich visual effects. Therefore, colorful optical films are widely used in industries such as household appliances, automobiles and electronics. [0003] In recent years, with the development of In-Mold Decoration (IMD) technology and the improvement of consumer electronics product design requirements, higher requirements are put forward for the performance of colorful optical films. Traditional colorful optical films obtain different colors or gloss through processes such as dyeing, pain...

AI Technical Summary

Problems solved by technology

Traditional colorful optical films obtain different colors or gloss through processes such as dyeing, painting, electroplating, chemical coating or physical layer coating, but the overall decorative effect is single in color, which is difficult to meet the requirements of personalized design of downstream products

[0004] The traditional colorful optical film preparation process usually includes multi-layer extrusion process and vacuum coating process. The multi-layer co-extrusion film prepared by multi-layer extrusion process also has defects in some mechanical properties, the most notable is the multi-layer The adhesion between the layers of the structure may be insufficient, so the internal separation of each layer will occur in the film during use, which will affect the decorative effect; the vacuum coating process is mainly to combine two or more materials with different refractive indices. The target materials are deposited on the substrate sequentially by vacuum coating (such as vacuum evaporation or magnetron sputtering, etc.) to form a multilayer optical film.

The colorful film produced by this process has strong adhesion, but the film forming speed of this production process is very slow, which leads to long production cycle of colorful film, low production efficiency and high production cost.

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