Lcd display china.LCD and OLED screen advantages and disadvantages analysis. “of course, to buy a mobile phone, you should buy a mobile phone with an OLED screen, which can be displayed clearly and look good in color. LCD screen has long been obsolete technology, there is no need to buy. ”

In fact, this is not the case. as far as the current level of technology is concerned, LCD and OLED screen phones will co-exist for a long time, with each other’s pros and cons. For example, LCD technology is mature, although the color is natural but not as gorgeous as OLED; OLED is bright, but not as bright as LCD eye protection. So who will become the mainstream choice of the market ultimately depends on the choice of consumers and the quality of the product itself. The iPhone XR, which sold more than 330000 units during JD.com ‘s 618 period, is a flagship product with a LCD screen.

So both LCD screen and OLED screen phones are worth buying, as long as you consider whether the screen features of both are in line with your needs.

Strictly speaking, the development history of OLED screen is not short. It was used in MP3 devices as early as 2003, but it was not until the release of iPhone X in 2017 that OLED screen was really known and understood by consumers.

OLED is called Organic Light-Emitting Diode, that is, organic light-emitting diodes. On the one hand, this is an organic self-luminous material, which has its own luminous properties and can be powered on without a separate backlight layer or color filter, especially when the black interface is displayed, you will find that the screen and the phone’s black panel are almost integrated, so the dark mode on the iPhone is cool.

On the other hand, because the OLED screen removed the backlight, polarizer, etc., so this kind of screen is very thin, if installed on the plastic substrate has become a hot flexible screen, with the help of film packaging technology, and paste protective film on the back of the panel, so that the panel becomes flexible, not easy to break, this flexible screen has shined brilliantly on the folding screen mobile phone, but also pointed out a direction for flexible screen applications.

As for the AMOLED screen advertised by major manufacturers as an extension of OLED screen, the screen technology is basically in the hands of South Korean manufacturers. Samsung and LG alone account for 95% of the world’s AMOELD screen production.

To some extent, the LCD screen is the opposite of the OLED screen, the full name of the screen is Liquid Crystal Display, that is, the liquid crystal display screen, because it does not have the characteristic of self-illumination, it needs backlight support, and because it needs to pass through two layers of glass, optical diaphragm, alignment film and color filter to produce polarizing effect, it will be much thicker than the OLED screen.

Compared with OLED screens, LCD has a longer history, more mature technology and lower cost, which is why LCD screen phones are cheaper than OLED screen phones at the same level. At the same time, the color effect of this screen will be more natural and accurate than OLED, so LCD screens are often used in professional fields such as advanced graphics. At present, the screens of TFT, IPS and SLCD on the market are treated differently in technology, and in essence, they all belong to LCD screens.

Speaking of which, we already have a preliminary understanding of LCD and OLED screens. As the two most widely used display technologies in smartphones, LCD and OLED screens are already two products with their own advantages and disadvantages, but because of this, the users who support these two technologies have become the opposing camp of “salty party versus sweet party” and “drinking Pepsi or Coca-Cola”.

As mentioned above, LCD screens have a long history, dating back to half a century ago, but the “LCD Party” insists on LCD screens not because they are old-fashioned and unenterprising, but because OLED is unacceptable in some ways.

First of all, the most prominent problem is the eye injury of the OLED screen. The essence of this problem is the low-frequency flashing problem of OLED screen under PWM dimming. According to the survey report released by IEEE (Association of Electrical and Electronic Engineers), the strobe range with lower impact on naked eye health should be above 1250Hz, and if you want to minimize the health impact, you need to reach more than 3000Hz, but at present, OLED screen strobe is mostly around 240Hz, the gap is very obvious, so there is a scientific basis for some people to look at mobile phone eye pain.

Although some manufacturers have introduced DC dimming mode, it does not mean it is healthier, but it is only a way to adjust screen brightness for people who are sensitive to low-frequency PWM dimming to reduce the damage of OLED screen to users’ eyes. However, DC dimming may also produce the phenomenon of screen color deviation, affecting the look and feel.

Therefore, users often say that phones that look at the LCD screen for a long time will not have obvious discomfort, because the strobe range of the LCD screen is mostly above 1000Hz, which is more eye-friendly, especially when looking at the phone in dim light. If your eyes are sensitive, LCD screen phones may be more sensitive at this stage.