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DXOMARK secret OLED found more than LCD injury

  • Author:ROGER
  • Release on:2021-06-10
Recently, well-known mobile evaluation agencies DXOMark released the relevant reports, explained the problem of flashing on the screen. Dxomark Image Labs is a separate French company in the Paris area. Focus on the camera of various types of consumer electronics,Audio, Screen, etc.measuring.

In the latest report, DXOMark represents the LCD comparable to the perspective of protecting your eyes.OLEDMore eye-catching, this is mainly because the technology of OLED itself is prone to consumers visual fatigue. From a technical point of view, the PWM dimming frequency of the LCD is above 1000 Hz, while OLEDs typically have only 50-500 Hz.

The human body flashes around 250 Hz, which means that OLED is easier to make consumers feel fatigue than LCD.

On the other hand, in the pixel arrangement, the OLED screen cannot be even as uniform, and the LCD screen is equally, the like and regularly disserted pixels; if the resolution is equally equally, the OLED screen has only six to 80% of the LCD screen.

DXOMark said that even those who unconsciously flicker, it is possible to generate a problem of headache or eye fatigue after excessive use of the screen. These people can purchase smartphones with LCD rather than OLED screens.

According to DXomark, the mobile phone PWM frequency is 2360 Hz, and some mobile phone PWM frequency of the OLED screen is only about 300 Hz.

In addition, OledWhen the screen is very low, the duty cycle (the duration of the LED is light in one cycle is called the duty cycle), and the low PWM frequency, it will become more obvious, this can also explain why When reading a text or watching a video at night, it is easier to headache than watching the screen under the brightest conditions, and the eyes are more prone to fatigue.