7 do's and don 'ts to make LCD displays look better

1. Pixel density  

PPI(pixel density) is a unit of image resolution that measures the number of pixels per inch.  The higher the PPI, the higher the density of the display.  The higher the density of the display, the more immersive and eye-friendly it is.  For example, if the PPI value is low for the larger LCD screen, it will have a heavy sense of granularity.  

2. Backlight  

The previous LCD backlight is CCFL tube, now most LCD screens are LED or WLED backlight.  Because LED light quality is higher, more uniform, color performance is better, better for the eyes.  

3. Refresh frequency  

Refresh rate, the vertical scanning rate of the display, refers to the number of images displayed per second by the display, in Hertz (Hz).  The higher the refresh frequency, the more times the image refresh, the smaller the flicker image display, the higher the picture quality.  If the refresh frequency is too low, the screen will obviously feel flashing, which is easy to cause eye fatigue and harmful to eyes.  

4. Brightness and contrast  

The right brightness and contrast can protect the eyes.  In a bright environment, the display brightness should be turned up, and in a more dim environment, it is necessary to turn down the brightness.  Contrast needs to be adjusted with brightness to keep the eyes comfortable.  

5, color  

If you need to spend a lot of time looking at the screen, you can choose a mild color mode, and a warm light is recommended.  

6. Font size  

The distance between the eyes and the screen also affects the screen experience, so the right font is very important.  You can adjust the font size to suit your needs.  

Harmful blue light  

The damage of blue light to eyes is mainly caused by pathological damage such as visual fatigue, myopia, cataract and macular degeneration.  In today's increasingly advanced science and technology, blue light can be prevented by "soft" and "hard" technologies.  Among them, "soft" anti-blue light is to anti-blue light glasses, anti-blue light coating, software to reduce blue light intensity and other means to solve the software, and the filtering effect is only between 30% and 70%, and does not effectively solve the harm of blue light.  The "hard" method of preventing blue light means filtering out pathogenic blue light through hardware processing, so as to solve the harm of blue light to human eyes as much as possible.  


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