Oled Display.LCD will never be a slave? The mobile phone screens on sale can be divided into two types: OLED and LCD, while OLED screens can be divided into ordinary OLED and AMOLED.

Throughout the mobile phones released in recent years, they are equipped with these three kinds of screens, so that consumers can have a better and diversified choice.

Coincidentally, the K9 series released by OPPO are equipped with these three kinds of screens, so Brother Green will talk about how these three screen materials work. For example, the LCD screen equipped with OPPO K9s is composed of backlight, lower polarizer, upper polarizer, driver layer and other accessories, in which the liquid crystal panel can filter the backlight and display different colors by controlling the amount of backlight, and the molecules in the structure of the liquid crystal panel also play the role of deflecting to determine the color quality. as for the luminous principle of the LCD screen, the LED light source is arranged in a row on the edge of the screen. A transparent light guide material is used to guide the light emitted so that the backlight can be accurately and evenly distributed to every corner of the screen.

However, the OLED screen equipped with OPPO K9 has no backlight layer and filter layer, and its luminous effect is realized by overcarrier injection and recombination of organic semiconductor materials and light-emitting materials. Different from the LCD screen, the OLED screen is composed of substrate, anode, organic layer and other hardware, in which the substrate is used to support the OLED screen, the anode is used to eliminate electrons and increase electron holes when the current passes through, and the organic layer is composed of organic molecules or organic polymers. As for the AMOLED screen, it differs from the OLED screen in that it not only requires a signal, but also requires additional power to make the diode work, which is why it is said that the OPPO K9 Pro screen saves power.

After understanding how it works, Brother Green will tell you about the differences in the OPPO K9 series of screens. The first is the thickness, because the OLED screen uses a self-luminous material, so there is no need for the luminous layer and other configurations to assist, which also allows the screen thickness to be controlled within the 1mm, while LCD does not have the ability to emit light alone, and must rely on the backlight layer + liquid crystal layer to achieve luminous and color changes, which is why LCD screens are generally thick. The second point is the display quality, the OLED screen can independently control a single pixel, so that the black part does not glow at all, which makes it have a wider color gamut and brighter colors than the LCD screen, but it is often complained that the color saturation is too high and not real enough.

Finally, there are the pros and cons of these screens. Thanks to the fact that the OLED screen is light and thin enough, the OPPO K9 Pro can perfectly control the thickness, and this screen material is also the best vehicle for off-screen fingerprints. At the same time, the OLED screen itself has good flexibility, so it is also widely used in curved screen mobile phones, but the disadvantage is that the life is short, easy to produce screen burning effect, but also accompanied by screen flash. But the LCD screen does not have this kind of distress, its development history is long, the technology is also more mature than the OLED screen, the top display effect is not inferior to the AMOLED screen, the disadvantage is that it is thicker and heavier, it will produce shadow when sliding, and it is difficult to achieve the effect of fingerprint and AOD screen display under the screen.