The OLED screen, which is not necessarily familiar to the public, was frequently pushed to the spotlight in 2017. We know that OLED should start with the Samsung mobile phone, with the OLED improvement and life extension, more and more devices are starting to use the OLED screen. The next generation of Apple's next generation mobile phone uses the OLED screen, and then pushes the OLED to the tip of the wind. Then, will OLED replace LED in the future? Let me look at it.