3D curved display TPU protective film and preparation method thereof

Abstract

The invention discloses a 3D curved display TPU protective film and a preparation method thereof. The 3D curved display TPU protective film comprises a matte film layer, a first OCA adhesive layer, aself-repairing layer, a TPU film layer, a prime coat layer, a second OCA adhesive layer, a transparent PET layer, a high-viscosity low-stripping silica gel layer and a fluorine film layer which are sequentially laminated from up to down. The 3D curved display TPU protective film disclosed by the invention is smart in structural design, the TPU film layer is reasonably taken as a base material, flexibility is good, and the 3D curved display TPU protective film can fit on the surface of the 3D curved display; the self-repairing layer is laminated on the TPU film layer, repairing effect is good,and service life of the 3D curved display TPU protective film is prolonged; and the overall closely fits on a 3D surface screen required to be protected, and a high-strength protective effect is achieved for the 3D surface screen. The preparation method provided by the invention is simple and brief and is easy to realize, production efficiency is high, and the 3D curved display TPU protective filmproduct with good protective effect and excellent overall performance can be rapidly produced, so that the preparation method provided by the invention is beneficial to being widely popularized and applied.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a 3D curved screen TPU protective film and a preparation method thereof. Background technique [0002] There is a periodic update requirement for the industrial design of the appearance of smartphones. In the era of functional phones, there are obvious differences in different designs such as clamshells, sliders, and sideslips. In the era of smart phones, although the back cover of each generation of mobile phones has been changing from material to shape, the appearance of the screen is always the same straight touch screen. The emergence of 3D curved glass and OLED has brought new possibilities for the appearance of touch screens. The curved screens pioneered by IPhone8, Samsung Galaxy S6 Edge and LG G Flex not only broke consumers’ aesthetic fatigue for straight touch screens, but also became a The innovation battlefield of major brands. [0003] The advantages of t...

AI Technical Summary

Problems solved by technology

Since the original flat glass screen used nothing more than several types: A, PU glue protective film; B, silicone protective film; C, acrylic protective film; but the above three are all PET substrates, resulting in the protective film itself is not flexible, It cannot fit the curved screen, and cannot fully protect the touch screen or display module, so the industry began to look for a curved surface bonding protective film that can be used in the handling process.

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