Why we don't use OLED on computers? Maybe due to these reasons

- Oct 08, 2020-

OLED has the advantages of self-illumination, wide viewing angle, almost infinitely high contrast, fast response speed, low power consumption, light and thin, etc. At the same time, because it does not require a backlight module, the OLED frame can be narrower. Therefore, OLED is widely used in smart phones and TV displays. But I don’t know if you have noticed that OLED displays, which are widely used on mobile phones and TVs, are not cared about on computer monitors. Why is this happening? This starts with the shortcomings of OLED screens.

OLED display

1. Service life


Although manufacturers claim that OLED has a service life of up to 100,000 hours, in fact, based on the blue pixels with the fastest decay mentioned above, the service life is up to 20,000 to 30,000 hours.


This means that the life of the OLED screen is only two or three years at most.


For frequently used computer monitors, this life span is at least half shorter.


At present, the warranty period of computer monitors is generally three years. The monitor must be replaced at least once during the warranty period, and no manufacturer can afford to hurt it.


2. Eye hurt


Since 2014, the displays on the market have basically adopted DC dimming technology, without flickering, so the damage to the glasses is small.


As for the OLED screen, due to technical problems, currently only the traditional PWM dimming technology, that is, the flash screen, can be used, which is more harmful to the eyes.


At the same time, in order to extend the service life, OLED screens are basically low-frequency dimming, which is particularly harmful to the eyes.


For example, Apple’s first OLED screen mobile phone, iPhoneX, uses 240Hz low-frequency PWM dimming, which is very harmful to eyes when used for a long time.


3. Toning


Although OLED has a much wider color gamut than LCD, it is difficult to adjust the color accuracy to the excellent level of LCD.


What’s more painful is that because the three sub-pixels of OLED have different light attenuation speeds, especially the attenuation speed of blue pixels is very fast, which causes the color of the OLED display to become more and more inaccurate over time. , Need frequent color correction.


For ordinary users without professional color correction tools, this is difficult to achieve.


Imagine that you can buy a monitor for a high price of tens of thousands of yuan, and it will take a while to find someone to come over to calibrate the color. I am not happy with it.


4. Price


At present, the price of acceptable computer monitors for most users is around 1,000 yuan. Even if the computer is high-end, around 5,000 monitors are already very high-end.


But the price of OLED screen TV is generally more than 10,000 yuan, and the price of OLED display is even more exaggerated, and it costs 20,000 to 30,000 yuan at every turn.


 It is acceptable for many people to buy a TV for more than 10,000 yuan, and for a monitor for 20,000 to 30,000 yuan, most people do not.


5. Burn screen


The so-called burn-in means that if a still image is displayed on the screen for a long time, it will leave an afterimage.


At present, all OLED screens are more or less affected by burn-in.


Moreover, this afterimage is permanent and cannot be eliminated.


This is also the biggest drawback of OLED screens.


The burned screen will be more serious on the computer reality.


Because there are too many commonly used icons on the computer monitor, including the status bar, a large area of screen burn will occur after several hours of continuous use.