RGB Mini LED Backlight RGB (multi-primary) Mini LED backlight

Mechanism

A conventional Mini LED backlight uses a single white or blue LED behind each dimming zone, with a quantum-dot layer and color filter sitting on top of the LCD stack to convert that backlight into color. An RGB Mini LED backlight changes the backlight itself: each LED cluster contains individually controlled red, green, and blue diodes rather than one white or blue emitter. Because the backlight already produces the needed primary colors, the color-filter conversion step can be removed, which reduces light loss and is described as producing purer, more vibrant colors with less halo effect around bright objects.

Sony's implementation of this approach, marketed as True RGB, uses pure red, green, and blue LED backlights together with an LCD layer, in place of the solid blue LEDs and quantum dots used in standard Mini LED TVs.

Hisense has extended the concept with what it calls the RGB Mini-LED evo backlight: a four-primary architecture that adds cyan to the existing red/green/blue structure. Hisense's rationale is that cyan falls in a spectral region where human vision is especially sensitive to subtle tonal changes, so adding a fourth primary targets that sensitivity directly.

Key specifics

Zone counts for RGB Mini LED TVs are reported in two separate figures: local dimming zones (controlling brightness only) and color control zones (controlling both brightness and color independently). The Hisense UX, for example, is specified with 2,304 local dimming zones and up to 6,912 color control zones—a color control zone count roughly three times the dimming zone count, since each dimming zone can contain multiple independently addressed RGB clusters. Hisense states this enables color volume up to 100% of the BT.2020 color gamut on that model.

For the newer four-primary RGB Mini-LED evo system, Hisense's flagship 116-inch UXS model is specified at up to 110% of BT.2020 color coverage, managed by what Hisense calls the Hi-View AI Engine RGB across tens of thousands of color dimming zones. Hisense is expanding this architecture in 2026 beyond the flagship into its more accessible UR9 and UR8 Series.

Sony brands its version RGB Backlight Master Drive Pro, described as precisely controlling independently driven red, green, and blue light sources. Sony states that independent control of the RGB LEDs achieves the largest color volume in the company's home TV history, with what it describes as high color gamut, contrast, depth, and gradation. Sony's release describing this technology does not include specific nits or zone-count figures.

Real-world use

Sony's True RGB lineup ships as the BRAVIA 9 II (flagship, in 65", 75", 85", and 115" sizes) and the BRAVIA 7 II (50", 55", 65", 75", 85", and 98"). Hisense states it introduced the first consumer RGB Mini-LED TV in 2025 with true RGB Local Dimming, and is expanding the RGB Mini-LED evo four-primary architecture in 2026 through the 116UXS flagship and the UR9 and UR8 Series. The "first consumer RGB Mini-LED TV" claim is Hisense's own self-reported positioning and has not been independently verified against competing manufacturers.

Because RGB Mini LED backlights control color at the LED level rather than relying on a color-filter conversion step downstream, the qualitative claim across sources is fewer halo and blooming artifacts around bright, saturated objects compared with standard Mini LED, which must rely solely on zone-level brightness dimming to manage contrast.

Sony's differentiation of True RGB from other manufacturers' RGB Mini LED implementations is framed, per secondary reporting, around image-processing precision. Described as adapted from Sony's professional reference monitors to control the LEDs more precisely, rather than as fundamentally novel backlight hardware. This is a characterization from secondary reporting, not an independent lab comparison of hardware architectures.

Common confusions

RGB Mini LED is not the same technology as TCL's SQD Mini LED. Per TCL's own comparison, SQD Mini LED retains a traditional blue LED backlight, paired with reformulated quantum dots and TCL CSOT's UltraColor Filter, rather than using separately addressable RGB emitters within the backlight itself. TCL's language explicitly distinguishes this: RGB Mini LED changes the backlight itself, while SQD Mini LED keeps the blue-LED-plus-quantum-dot-plus-filter approach of conventional Mini LED.

Color volume and gamut-coverage figures cited for RGB Mini LED TVs—such as 100% or 110% of BT.2020—are manufacturer specifications or claims reported by secondary outlets citing those specifications, not figures from independent lab measurement (e.g., RTINGS or FlatpanelsHD testing). The distinction between dimming zones and color control zones is also a manufacturer-specified figure rather than an independently verified count.

"RGB EVO" is not a standalone Hisense product or brand name; in Hisense's own materials it appears as "RGB Mini-LED evo," referring to the four-primary (red/green/blue plus cyan) backlight architecture, applied as a suffix to the existing RGB Mini-LED line rather than as a separate product family.