What is an OLED display screen?
The scientific name of OLED is "organic light-emitting diode" is an organic self-emitting material, which makes the OLED screen no longer need a backlight module, so it can be made thinner in thickness. Moreover, OLED also has the characteristics of wide color gamut, almost infinite high contrast, extremely high reaction speed, bendability, power saving, etc., so it is also known as "dream display technology" by the outside world.
And it is precisely because of the self-illuminating properties that OLED screens can not emit light at all when displaying black, while LCD still needs a backlight to operate in the background even when displaying black. The most direct effect of this mechanism is that the OLED screen can show perfect picture contrast, and the display picture will be more vivid and realistic.
The most direct comparison is that if you put a Samsung Galaxy S8 and iPhone 7 together, you will find that although the display effect of the iPhone 7 is excellent enough, the Galaxy S8 with OLED screen is still better.
Moreover, OLED screens can be made into curved screens, such as Samsung S8 and other models are curved screens because of the use of OLED screens, and LCD screens due to the characteristics of liquid crystals do not support bending, another point that makes Apple choose to use OLED screens may be that the current in-screen fingerprint recognition technology only supports OLED screens, because the fingerprint cable in the screen can be done with the screen cable.
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