Why only OLED use direct light emission, and on the other hand we only have LCD-based manipulation of backlight? Why can’t we have small LED blubs for each pixel of screen?

Question

\* or have LED for each sub-pixel of screen.

In: 3

Answer 1

Like this? https://www.planar.com/products/led-video-walls/ says “pixel pitches from 0.6mm to 20mm”. A 1024×768 15″ display has a [dot pitch](https://en.wikipedia.org/wiki/Dot_pitch) of ~0.3mm.

We can, it’s just that they’re not the best fit for the form factors *and price points* that LCDs are useful for. If you’re talking about a desktop or personal device display to be viewed up to 3m or so, then you want a finer dot pitch because that’s what the existing products have.

microLED is in development.