What is an RGB TV?
What is an RGB TV?
An RGB TV is an LCD television whose backlight is made of separate red, green and blue LEDs rather than white or blue ones. Producing coloured light directly, instead of filtering white light down to a colour, wastes less brightness and allows a wider range of colours to stay bright.
How a normal LCD makes colour
A conventional LCD has a white backlight behind a layer of red, green and blue colour filters. To show pure red, the filter blocks the green and blue — most of the light is thrown away. That is why deeply saturated colours on an LCD tend to look dimmer than pale ones.
What changes with an RGB backlight
If the backlight itself can produce red, green and blue, far less light is discarded at the filter stage. Manufacturers describe the benefit as wider colour volume — the ability to hold saturation at high brightness rather than only at low brightness.
What does not change
It is still an LCD panel with a backlight behind it, so light still leaks around bright objects on dark backgrounds. An RGB backlight improves colour; it does not give an LCD OLED's per-pixel black.
The names each brand uses
There is no shared term yet, which makes the category hard to search for. Samsung calls it Micro RGB, LG calls it Micro RGB evo, Hisense uses RGB Mini-LED and TriChroma, TCL uses RGB-Mini LED, and Sony uses True RGB Mini LED. These are marketing names for the same underlying idea.