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The secret technology behind new Mini LED TVs
4/10TL;DR
SQD Mini LED televisions combine dense Mini LED backlighting with quantum dot enhancements to deliver near-OLED contrast and significantly higher brightness, led by TCL’s latest high-end models.
KEY POINTS
Mini LED as the foundation
Mini LED technology builds on traditional LCD by using thousands of much smaller LEDs for backlighting. These LEDs are grouped into local dimming zones, allowing more precise control of light. Increased zone density improves contrast, deepens colors, and reduces visual artifacts compared to standard LED TVs.
Reducing blooming and improving contrast
One of LCD’s main flaws, known as blooming, appears as halos around bright objects on dark backgrounds. Mini LED significantly reduces this effect by tightening control over light distribution. With more zones, light leakage is minimized, producing sharper images and more defined dark scenes.
SQD Mini LED adds quantum dot precision
The “SQD” layer introduces Super Quantum Dots, nanocrystals that convert LED light into highly pure red, green, and blue wavelengths. This results in a cleaner, more controlled light source before it reaches the color filter, improving overall color accuracy and efficiency.
Color performance reaches professional standards
TCL claims its SQD Mini LED displays achieve 100% coverage of the BT.2020 color space, a professional benchmark. This represents an improvement of about 33% over previous generations, enabling more lifelike and saturated colors across HDR content.
Massive increase in dimming zones
TCL’s latest models, such as the X11ZL series, feature up to 20,000 local dimming zones, compared to roughly 14,000 in earlier versions. This increase brings Mini LED performance closer to pixel-level precision, narrowing the gap with self-emissive technologies like OLED.
Brightness far exceeds OLED
While high-end OLED panels typically peak around 4,000 nits, TCL’s flagship SQD Mini LED models can reach up to 10,000 nits. This makes them particularly effective in bright environments, maintaining visibility and HDR impact even under direct ambient light.
OLED comparison remains nuanced
OLED technology still offers true per-pixel lighting, enabling perfect blacks and theoretically infinite contrast. However, with enough dimming zones, SQD Mini LED can appear nearly indistinguishable to the human eye while outperforming OLED in brightness and daytime usability.
Large sizes and cost advantages
Mini LED displays are easier to scale than OLED, enabling very large screen sizes—up to 115 inches—at more competitive prices. OLED panels become exponentially more expensive at larger sizes, giving Mini LED a strong value advantage.
Flagship features beyond display quality
TCL’s premium models combine 4K resolution at 144 Hz, full HDMI 2.1 support, and gaming features like VRR and FreeSync. Integrated Dolby Atmos 5.2.2 audio systems and Google TV further position these TVs as all-in-one entertainment hubs.
Pricing and availability
The SQD Mini LED lineup is available in sizes such as 75, 85, and 98 inches, with entry pricing starting around €4,299 for the smallest model in the flagship range.
CONCLUSION
SQD Mini LED represents a significant evolution of LCD technology, closing the gap with OLED in contrast while surpassing it in brightness and scalability, positioning it as a strong contender in the premium TV market.