Privacy film is loved by consumers because of its function of protecting privacy, but many people stick a privacy film on the screen Afterwards, the screen will feel unclear, with streaks, and even some people will feel dizzy and dizzy after using the privacy film. What is the reason?

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The privacy film adopts micro shutter technology and the principle of physical optical polarization. It only has visibility within 30 degrees of the front and side, and the screen content cannot be clearly seen from the sides other than 30 degrees to the left and right. The louver structure in the privacy film lens blocks some light. Make users feel that the screen is darker than before, so the brightness and color of the screen will be affected to some extent.

Staring at the screen for a long time, especially outdoors, will cause tingling, tearing, photophobia and other uncomfortable symptoms in the eyes, which are mainly related to the visual fatigue caused by looking at the mobile phone for a long time. The privacy film is easy to refract the light of the screen, which will aggravate this fatigue. Especially when outdoors, the screen lighting is insufficient, and it is more difficult to see the fonts clearly. Therefore, the ciliary muscle is often in a tense state, the lens continues to maintain a large convexity, and the eyes are easily fatigued due to excessive adjustment. Myopia can be formed or aggravated.

When the mobile phone privacy film is applied, air bubbles are generated, so that it is easy to enter the air and dust, which makes it difficult to see the patterns and subtitles on the screen, thus affecting the eyesight. In order to prevent air bubbles, when sticking the film, use hand sanitizer to clean the dust and oil stains on your hands first, and then wipe the surface of the mobile phone with a glasses cloth or a lint-free soft cloth with a small amount of water to clean the surface of dust, fingerprints, etc.; tear it off. One side of the protective film, and then align the top and left and right sides to paste the film; when applying the film, try to maintain a uniform speed. When air bubbles appear, you can pull back a little to re-paste, and then use a wool felt scraper or soft pad to scrape The board slowly presses the film a little on the surface of the phone. After pasting, wrap the credit card with the soft cloth that has just wiped the screen, and slowly use force to scrape the air bubbles out of the edge.

When choosing a privacy film, you should first consider its light transmittance. At present, the quality of privacy films on the market is uneven. Many businesses use inferior privacy protection materials to save costs. This film is not only ineffective. The peep prevention of others will also seriously affect the user's eyesight.

When the privacy film is installed on the display screen, if there are a lot of stripes, this phenomenon is due to the misalignment of the die-cutting at the manufacturer, and the angle is not set properly when the die-cutting is performed. If a certain amount of material needs to be angled, it will reduce the output rate of the product and make the cost of the manufacturer go up. Therefore, when choosing a privacy film, it is necessary to consider whether the privacy film manufacturer has the ability to strictly control the quality.