Knowledge of LCD LED OLED QLED！(4)
According to the driving method, OLED can be divided into passive OLED (PMOLED) and active OLED (AMOLED). Yes, it is the kind that mobile phones have adopted in recent years. Behind the LCD TV is the projection of countless light spots, but behind the OLED, OLED has many advantages such as ultra-thin, good shock resistance, large viewing angle, short response time, good low temperature performance, and high luminous efficiency. There are countless independently controllable light spots that can be bright or dark, and do not need a backlight to project.
From the perspective of viewing experience, the LED Screen is a bit rough, it cannot control each pixel, and the "black light" can be fully expressed. The black displayed on the LED Screen relies on the offset of liquid crystal molecules to block the backlight and display black. , but sometimes there is still some light coming out of the Screen when the Screen is displayed, there is no way to achieve a completely black scene, on the contrary, OLED can complete this skill, OLED can manage each independent pixel, you can turn off what you want to turn off Pixels, so that the brightness of these pixels becomes 0.
