At the Display Week in Los Angeles, Nanosys, a company specialized in quantum dots, criticized LCD screens with RGB LED backlighting, a trend gaining followers this year. To demonstrate its stance, the company showcased two 85-inch televisions: one with mini-LED and quantum dots (TCL X11L) and another with RGB LED backlighting. According to Nanosys, the colored light from the LEDs spreads to neighboring pixels, causing cross-color distortion.
The Technical Problem of Color Crosstalk in RGB LED 🧐
In theory, RGB LED backlighting promises more saturated and brighter colors. However, in practice, the light emitted by each diode does not stay contained within its designated area. By illuminating nearby pixels, an unwanted mixing of colors occurs that degrades color accuracy. Nanosys claims that its superior quantum dot (SQD) technology avoids this effect, offering finer and more uniform control over the white light generated by mini-LEDs.
The theory was nice, but the light escaped 😅
It seems that RGB LEDs are like some neighbors: they don't know how to stay in their own house. Instead of lighting only their own pixel, they sneak into the next one and throw a party of uninvited colors. Nanosys, with its wise old man demeanor, reminds us that not everything that shines in a PowerPoint works the same way in your living room. Next time you see an ad for vibrant colors, ask yourself if the green isn't sticking its nose where it doesn't belong.