Precision light control, absolute clarity. These are the claims we keep hearing from LCD based displays. But can a backlight truly control light with perfection? RGB mini LED like mini LED and LCD still carries the same fundamental limitation. Let's take a closer look on OLED. Even the tiniest points of light remain sharp and distinct, delivering clear contrast. But on the RGB mini LED, each light source is surrounded by a cloudy glow, what's known as a halo effect. In the second scene, OLED cleanly separates light from dark backgrounds with crisp boundaries. On the RGB mini LED, however, the light leaks outward, blurring the edges and making the night sky look hazy instead of deep black. Why does this happen? Because LCD based panels control light in group zones through local dimming. To display a small highlight, an entire block of the backlight has to turn on, causing the light to spill outside the intended area. As a result, boundaries that should be sharp and precise appear blurred and washed out. In contrast, OLED controls light pixel by pixel, keeping every detail sharp and true. Now, let's compare the numbers printed on each freight car of a moving train. On OLED, the numbers remain sharp and easy to read, but on the RGB mini LED, the numbers blur and leave a trailing after image. With professional measuring equipment, the results are undeniable. Switching between checkerboard patterns shows OLED responding instantly with each signal input, while the LCD lags, creating motion blur. We've seen the truth. Behind the flashy ads and new labels, RGB mini LED is just LCD at its core. The limits haven't changed. And when it comes to a display that delivers on every promise, only OLED stands apart.