4 ms·

Why would it be a separate UV pixel?

• rkangel 4y ago
  Each LED (any LED) generates a single wavelength of light - this is a fundamental property as a result of the way that LEDs use semiconductors to make light. Normal screens use a Red, Green and a Blue and then mix them to make colours in the visible light spectrum. For this process they need a wavelength outside the visible light spectrum (UV), and so they need a completely separate LED as the normal R, G and B are all in the visible spectrum.
  • planede 4y ago
    Is this an OLED display? For non-OLED I would have expected just a separate UV backlight and making the pixels transparent to UV.
  • nicoburns 4y ago
    > Normal screens use a Red, Green and a Blue and then mix them to make colours in the visible light spectrum. I believe most screens use a white backlight and then each pixel filters this to red, green or blue. OLED and micro led screens use a separate set of leds per pixel.