Polarized angle hot bending protective film and preparation method thereof

Abstract

The invention discloses polarized angle hot bending protective film and a preparation method thereof. The polarized angle hot bending protective film comprises a PMMA protective layer, a silicone protective layer, an HC coating, an anti-blue-ray coating, a PET substrate layer, a TPU colloid layer, a silica gel release layer and a release film layer which fit one another in sequence from top to bottom, wherein the polarized angle of the PET substrate layer is 30-48 degrees; PET film is subjected to polarization angle die-cut molding reasonably, and the polarization direction of the PET film isin accordance with the polarization direction of a screen, thereby better fitting an unlocking mode, reducing the adverse effects on the unlocking sensitivity, facilitating smooth unlocking of fingerprint under the screen, and enhancing the user experience; TPU is applied to form the TPU colloid layer, so that the polarized angle hot bending protective film is flat adsorbed on the surface of a to-be-bonded object better, and the polarized angle hot bending protective film has an automatic exhausting function, has softness, is easier to hot press and form, does not rebound, can be adsorbed on the surface of a 3D curved screen better, has a good buffering effect, has an explosion-proof effect, has high practicability, and is conducive to widespread popularization and application.

Description

technical field [0001] The invention relates to the technical field of mobile phone protective films, in particular to a thermally bent protective film with a polarization angle and a preparation method thereof. Background technique [0002] Due to the popularity of the full-screen concept, no matter whether the traditional fingerprint unlocking method is used to unlock by front scraping or pressing, or using the rear unlocking method, it will affect the appearance of smart devices such as mobile phones. Fingerprint recognition requires a fingerprint collection window, which will inevitably affect the screen-to-body ratio, so the fingerprint under the screen came into being. Compared with the traditional button fingerprint unlocking and rear shell fingerprint unlocking, the fingerprint unlocking under the screen solves the aesthetic problem of the full screen. The new unlock mode is a challenge for screen protectors. Since the ordinary protective film has no polarization a...

AI Technical Summary

Problems solved by technology

Since the ordinary protective film has no polarization angle, it will make the unlocking recognition slow when used on the fingerprint unlocking screen under the screen, which will affect the sensitivity and accuracy of the fingerprint unlocking under the screen, or even fail to unlock, which will affect the user experience

Moreover, the molding effect is poor, which affects the coating effect. It is especially not suitable for 3D curved screens, and it is prone to rebound and fall off.

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