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1.Dimming Technology:

Opt for DC Dimming: Prefer LCD screens that use global DC dimming technology. This technology adjusts the screen brightness by directly controlling the current intensity of the backlight source, without causing stroboscopic problems, which is very friendly to eyes, especially in low – light environments. Avoid LCD screens that use low – brightness PWM dimming, as they may cause eye discomfort.

2.Blue – light Reduction Capability:

Look for Hardware Low – blue – light Certification: Check if the LCD screen has obtained relevant hardware low – blue – light certifications, such as the TUV Rheinland hardware low – blue – light certification. Such screens can shift the blue – light peak of the LCD screen from the usual 450 – 455nm to around 460nm, effectively reducing the harm of blue – light radiation to the eyes1.

Beware of Software – only Solutions: Software – based blue – light reduction methods, such as the eye – protection mode in phone settings, reduce the blue component of the screen display. However, this may lead to color distortion, so it’s necessary to consider personal acceptance of color changes.

3.Anti – Glare Performance: Check if the screen has an anti – glare film or coating, which can reduce reflections and glare from external light sources, making the image clearer and more comfortable to view, and reducing eye strain, especially in bright environments1.

4.Brightness and Uniformity:

Suitable Brightness: The screen brightness should be moderate. High – brightness screens without diffusion films may be dazzling, while low – brightness screens can cause eye strain from excessive squinting. It’s best to choose a screen with a brightness that is comfortable for the eyes and can be automatically adjusted according to the ambient light1.

Good Uniformity: The screen should have uniform brightness and color, without obvious dark or bright areas or color temperature differences, to avoid uneven visual stimulation that can cause eye fatigue.

5.Basic Screen Quality:

High Resolution: A higher – resolution screen can present clearer images, reducing eye strain caused by blurry images. For example, for a 27 – inch display, a resolution of at least 1080p is recommended2.

Wide Viewing Angle: A wide – viewing – angle screen allows for clear viewing from different angles, without significant color distortion or darkening, which is convenient for users to view the screen from various positions.

6.Certifications and Brand Reputation:

Relevant Certifications: In addition to the above – mentioned blue – light and eye – protection certifications, other related certifications can also be used as references to measure the eye – protection performance of LCD screens.

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