The advantages and disadvantages of OLED and LCD, the difference between OLED and LCD part three

OLED screen

The full name of OLED is Organic Light EmitTIng Diodes, and each pixel emits light by itself without the need for a separate backlight or color filter. And each OLED pixel can be assigned three colors of red, green, and blue, and now some manufacturers have added yellow, but the principle is the same.

Due to the special properties of OLED, it is not necessary to cover the light source like LCD when displaying black, only need to make the pixels go out and not emit light. And this is why the OLED display can bring true "black". The black of OLED is very deep, the contrast is extremely high, at the same time, if compared with white and other elements, it can even produce amazing effects.

OLED technology first appeared in the laboratory in 1987, and has become a very popular technology in the field of smart phones. Because OLED screens have one layer less than LCD screens, the thickness can be controlled to be thinner at a time, which is particularly important for mobile devices. For TV products, whether to choose OLED products depends on user preferences. However, we believe that the ultra-thin OLED is not a decisive advantage for LCD TVs.

One-to-one comparison

Due to the difference in basic attributes, we can take a look at the direct comparison between the two imaging technologies with different principles, and give users a more intuitive experience.

Black level: OLED wins

The black level refers to how "black" the screen can be when the darkest color is displayed. Since technologies such as LCD, DLP, or projection rely on filtering or shielding of white light, it is very difficult to display true black. In fact, it can be said that LCD screens cannot bring true black at all. After all, no matter how good the shielding effect is, there will still be a certain amount of light leakage. On the other hand, OLED, due to its self-luminous principle, can bring true black as long as the light-emitting mechanism is turned off.

Contrast: OLED wins

Contrast refers to the difference between the brightest white and the deepest black, while LCD has an advantage in brightness (especially in HDR mode), while OLED module has the deepest black. In general, OLED displays usually have higher contrast, because the advantage in the black level will magnify this difference.

Viewing angle: OLED wins

Perhaps the best IPS screens are comparable in viewing angles to OLED displays, but most LCD displays do not perform as well as IPS (especially TVs and smartphones), so in addition to top IPS displays, Compared with OLED, LCD panel has slightly worse viewing angle performance. In front of an OLED TV, no matter which angle the viewer sits at, they can see the content on the screen with a high-quality experience.