It's already 2024, why are there still users obsessed with LCD screens? The reason is revealed

Screen technology iteration is the core track for mobile phone manufacturers to "open up". The current OLED screen has reached a very good level in terms of brightness, power consumption, color, and eye protection. However, even as OLED technology becomes increasingly mature, a considerable number of users still firmly choose mobile phones equipped with LCD screens. The reason may be largely attributed to the unique advantages of LCD screens in eye protection. Why is LCD more eye-friendly? To explain clearly why many "LCD" people have sore eyes and shed tears when they look at OLED screens, we have to briefly talk about the principle of screen display. We can simply understand the picture displayed on the screen as a pattern composed of countless pixels. OLED screens use organic compounds. When current passes through, the sub-pixels can emit red, green, and blue light on their own, which is what we call "automatic Glow”.

2. In nighttime environments, OLED screens need to control brightness through DC-like dimming, PWM dimming, etc.
3. PWM dimming principle: The screen turns on and off alternately to achieve light and dark changes. Low-frequency flickering may cause damage to human eyes.

   

   1. The cooperation between the backlight of the LCD screen and the liquid crystal layer

The sub-pixels of the LCD screen do not emit light by themselves, but rely on the cooperation of the backlight and the liquid crystal layer to present images.

2. DC dimming of LCD screen

This structure allows the LCD screen to adopt DC dimming, which changes the screen brightness by adjusting the current intensity of the backlight source, instead of relying on PWM dimming like OLED screens. This method does not require alternating flashes and is more natural and friendly to the eyes.

3. Longer service life

In addition to flicker, screen life is also another important factor that affects the eye protection of the screen. LCD screens usually have a long service life, which can reach tens of thousands of hours, and when used The performance is stable during the process, and problems such as screen burn-in are not prone to occur.

4. Screen Burning Phenomenon of OLED Screens

In contrast, if the pixels of an OLED screen display the same content for a long time, it may cause screen burning, which is manifested as color distortion or afterimages in specific areas. Although current OLED screens have reduced the risk of screen burn-in through technical means, netizens still occasionally see "screen burn-in machines" posted on forums.

Although OLED screens have won the favor of the market with their excellent display effects and thin and light designs, for those users who are particularly concerned about vision health, the eye protection properties of LCD screens making it a more ideal choice.

2. However, because the LCD screen is too thick, the under-screen fingerprint scanner that is currently a must for mainstream mobile phones, and even the under-screen camera that may become mainstream in the future, cannot be equipped at all. Contrast, screen response time, etc. are also completely outperformed by OLED.
3. But in some mobile phone products that focus on cost-effectiveness and relatively low price, these configurations are not so important. Especially in the mid-to-low-end mobile phone market, LCD screen mobile phones still occupy a relatively important position.
4. Between the pursuit of ultimate display effect and the need for eye protection, different users have different choices. For those users who face the screen for a long time, such as students, office workers or heavy gamers, the eye protection advantages of LCD screen mobile phones are particularly evident. Outstanding, higher cost-effectiveness and more user-friendly, the "LCD Party" has gradually become a stable user group.

   

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