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Views: 0 Author: Site Editor Publish Time: 2025-08-27 Origin: Site
A privacy screen protector is a type of screen film designed to protect visual privacy, commonly used on devices such as smartphones, tablets, and laptops. Its primary function is to prevent onlookers from viewing the screen content from side angles. The composition of a privacy screen protector typically consists of the following layers.
1. Base Film
The base film of a privacy screen protector is generally made of polyester material (PET), which offers a certain degree of transparency and durability.
2. Privacy Layer
This layer is the core component of the privacy screen protector. It is typically composed of micro-louver structures or specialized micro-optical films. These structures effectively limit the viewing angle, ensuring that the screen remains clearly visible only from the front, while appearing blurred or completely invisible from side angles. Currently, the privacy layer is manufactured using a UV adhesive process.
3. Hard Coating Layer
Many privacy screen protectors include hard coating to enhance scratch resistance and prolong service life. This layer helps prevent scratches caused by daily use.
4. PE Protective Film Layers
Both the front and back sides of the privacy screen protector are covered with polyethylene (PE) protective film layers. These layers serve to protect the privacy screen protector during handling and application. They are peeled off and discarded when the screen protector is applied.
The manufacturing process of privacy screen protectors generally involves the following steps:
1. Substrate Preparation
A suitable substrate, such as polyester film (PET), is selected. These substrates exhibit excellent transparency and high mechanical strength.
2. Coating Application
A UV-based privacy coating is uniformly applied to the surface of the substrate. The privacy coating typically contains micro-louver structures or optical interference materials that restrict the angle of light transmission to achieve the privacy effect.
3. Photocuring
The coated substrate undergoes a photocuring process to ensure complete curing of the coating material, enabling stable and effective privacy performance.
4. Cutting and Finishing
The dried and cured privacy screen protector is cut into specific sizes and shapes according to requirements, followed by finishing and packaging.
Privacy screen protectors represent a technological innovation with both advantages and disadvantages. While they effectively safeguard user privacy, they may also impact screen quality to some extent. When selecting a privacy screen protector, it is important to choose a product that suits one’s specific needs. With the widespread use of electronic devices and increasing awareness of privacy protection, the application prospects of privacy screen protectors are expected to broaden significantly.
