TÜV Rheinland Certified Introduction TÜV Rheinland Certified, this certification is for Flicker Free & Low Blue Light technology or Low Blue Light only. TÜV Rheinland is the German Rhein TUV group as an internationally renowned independent third-party inspection, testing and certification agency. The agency has more than 140 years of experience in the field of Inspection and certification, it has 500 branches in 69 countries on five continents and more than 19,600 employees worldwide. TÜVRheinlan can provide professional service for global customers. For more information, please refer to the link below: https://www.tuv.com/usa/en/ Flicker free LCD panel is driven by the LED backlight of the LCD, it is driven by direct current mode instead of the Low frequency PWM mode, LCD panel also can be driven by the hybrid mode of direct current mode at high brightness and ultra-high frequency PWM model at low brightness in order to prevent users from feeling flickering. OLED panel is driven by a hybrid mode of direct current mode at high-brightness and low-brightness charge-discharge modulation mode in order to prevent users from feeling flickering. Regardless of the LCD panel or the OLED panel, these methods described above will not make users feel flicker, and all have passed TÜV Rheinlan Certified.   Low Blue Light technology is adjusting the proportion of blue light decreased by turning on the eye care mode in the MyASUS Splendid.   Please refer to the [Audio & Visual] chapter in the following link and set up Splendid as shown in the figure below: https://www.asus.com/us/support/FAQ/1045651   ※Disclaimer: Above TÜV Rheinland symbol and name are registered trademarks of the German Rhein TUV group. The names mentioned in this article are for identification purpose only.