Shantou is still a trend to talk about the recent fiery quantum dot screen

The concept of "quantum dot screen" has come into wide view. Because of LG G4, quantum dot screen claims to have a higher color gamut, higher brightness, higher contrast, and better color reproduction than IPS screens. Recently, the "quantum dot screen" has once again flared up in the television world because Samsung believes that OLED TV is not the future direction of development and instead is full of hope for another technology, that is, "quantum dot technology." What exactly is the "quantum dot technology"? Can it really ruin the IPS and OLED screens that dominated the mobile phone industry for years?

“Quantum Dots” are also called nanocrystals. Particle sizes are generally between 1 and 10 nm. After being stimulated, they can emit fluorescence with different wavelengths. The quantum dot screen is more of a change to the backlight scheme of LCD screens. The biggest advantage of light emitted by quantum dots compared to ordinary screen backlights is "pure"!

The LCD screen display can be said to be a screen backlight through layers, so the backlight system is a key factor that directly affects the display quality. Compared to ordinary backlighting solutions, the backlight of quantum dot technology is more pure, so there is no doubt that the performance on the color display is better.

In terms of color gamut, it has always been the strength of OLED screens. In WHYLAB's database is also true, OLED screen color gamut is generally higher than the LCD screen, and generally higher than 100% NTSC. In the figure below, theoretically, the color gamut of a quantum dot screen can reach 110% NTSC. After our test, the measured color gamut of the LG G4 is only 82.37%, which belongs to the wide color gamut screen, but it still falls far short of the theoretical level and does not exceed the gamut of the OLED screen.

In our test, the LG G4 has a maximum brightness of 505 nits and a static contrast ratio of 1835:1. These two data and color gamuts are already at a relatively good level.

In terms of LG G4, quantum dot screens have come to the fore and have performed well in color gamut, brightness, and static contrast. However, compared to the current (or at the time) top-level IPS and OLED screens, it has not yet been established. The advantages. We speculate that the development of quantum dot screens may be short-lived and their technology maturity is relatively low, but we also believe that with the influx of domestic and foreign manufacturers, driven by top screen manufacturers such as Samsung and LG, quantum Point technology will surely advance by leaps and bounds and will shine in the future.

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