OLED, QLED and Mini-LED are the three panel technologies currently competing for the mid-to-high end of the TV market, each with a different construction philosophy that translates into very concrete advantages and limitations, not just theoretical ones. To understand the differences in practice, we compare three TVs that represent them well: the Samsung OLED S94F, the Hisense 55E78Q (QLED) and the TCL 50Q6C (QD-Mini LED) — also expanding on the technical concepts already introduced in our full guide on how to choose a TV.
Samsung OLED S94F: true blacks, lower brightness
The Samsung S94F’s QD-OLED panel uses self-emitting pixels that switch off individually, with no backlight needed at all: when a scene calls for black, that pixel simply stops emitting light, delivering theoretically infinite contrast that no LCD technology, however advanced, can yet faithfully match. The “QD” in the name signals that, unlike the WOLED panels used by LG (which start from a filtered white light source split into the three primary colors), this panel starts from a blue source converted via Quantum Dot, achieving more saturated colors at peak brightness. Viewing angles are the best in this comparison, since each pixel’s light output stays constant regardless of viewing angle — a real advantage in living rooms with wide sofas or off-angle seating. Native 144Hz with 4 HDMI 2.1 ports also make it the most complete for gaming, allowing multiple full-bandwidth sources to be connected at once. The main limitation is peak brightness, typically in the 800-1,200 nit range for the best-performing OLEDs: in a very bright room, with direct light hitting the screen, the image can look less “punchy” than on a good Mini-LED. It’s also, predictably, the most expensive of the three.
Hisense 55E78Q: the most balanced QLED
The Hisense 55E78Q represents the QLED philosophy well: traditional LED backlighting boosted by a Quantum Dot layer — microscopic crystals that, lit by a blue light source, convert light into specific colors more precisely than traditional color filters. The result is a wider color gamut and higher peak brightness than a plain LED, while structurally remaining an LCD panel with traditional backlighting — so without the hundreds of independent local-dimming zones that characterize the TCL’s Mini-LED in this comparison. It doesn’t match OLED’s blacks (even the most modern LED backlighting can’t switch off as precisely, pixel by pixel) or Mini-LED’s contrast control, but it’s the only one of the three to support both Dolby Vision and HDR10+ together, and it’s the cheapest in this comparison. Refresh rate stays capped at 60Hz, so it’s not built for serious gaming with current-gen consoles or PCs.
TCL 50Q6C: the Mini-LED middle ground
The TCL 50Q6C combines Quantum Dot with Mini-LED backlighting, with hundreds of independently controllable local-dimming zones — a clear technological leap over the Hisense’s traditional QLED, where the entire panel (or at most a few large zones) is managed as a single block. The result is much more precise contrast than a traditional QLED, with less “blooming” (the glow that appears around a bright object on a dark background) and peak brightness that typically exceeds 1,000 nits, higher than both the QLED and the OLED in this comparison. With native 144Hz and 4 HDMI ports (2 of them 2.1), it’s also the closest to OLED on the gaming front, at a fraction of the price: the practical gap in response times still favors OLED, though, where every pixel switches on and off individually in a fraction of a millisecond versus the slightly longer times of an LCD panel, even a Mini-LED one.
Which one to choose based on your use case
There’s no one-size-fits-all answer: the choice mostly depends on the room you’ll be watching in, a criterion worth weighing even before your available budget. In a dark room dedicated to home cinema, OLED remains unmatched thanks to true blacks and perfect viewing angles. In a very bright living room, a good QLED like the Hisense 55E78Q offers a great experience at a more accessible price, putting its higher brightness to use. For those who game a lot and want the best balance between performance and price, the TCL 50Q6C’s Mini-LED is probably the smartest pick, with contrast that gets very close to OLED without the cost.
Conclusion
There’s no absolute winner among the three technologies: each excels under different conditions, and that’s precisely why all three coexist on the market instead of one having replaced the others. If budget isn’t an issue and the room is light-controlled, the Samsung S94F’s OLED remains the least compromised choice. If you want the best balance of price, brightness and gaming performance, the TCL 50Q6C’s Mini-LED is the most convincing answer. If budget is the top priority, the Hisense 55E78Q’s QLED remains more than enough for most everyday use, with the added benefit of supporting both Dolby Vision and HDR10+.