On April 18, it was reported by foreign media that the German Rhine T ∨ V quality certification agency said that if you do not peel off the polyimide film on the Samsung Galaxy Fold display screen, it will provide you with a very good OLED screen.

After a series of tests on the folding screen phone, they found that the harmful blue light emitted by the screen was significantly reduced. If you play with your mobile phone before going to bed, these lights may make you sleepless all night. The experimental results show that although the Samsung Galaxy Fold is equipped with an unconventional flexible screen, the 415-455 nm light emitted by it remains at a minimum.

It is reported that at present, the blue light emission ratio of OLED panel is 12%, LCD is 18%, and the blue light ratio of Samsung Galaxy Fold screen is 7%. Therefore, it has won the "Eye Comfort" certification of Rhine T ∨ V.

It is worth mentioning that the screen of Samsung Galaxy S10 and Samsung Galaxy Fold are at the same level. The former has also passed the Rhine T ∨ V test and obtained the eye comfort certification.

In order to reduce harmful blue light, manufacturers need additional filters and software adjustments to change the color accuracy of OLED screens. Samsung Display Department has successfully reduced the proportion of blue light by improving the performance of organic materials in Galaxy Fold OLED screens while meeting the DCI-P3 color standard.

According to the data, blue light refers to the light with relatively high energy in the field of visible light, whose wavelength is between 380~500nm. Long term exposure to 415~455nm dark blue light environment will cause eye diseases.

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