LG SIGNATURE ZX OLED77ZXPUA 77"
The 77-inch 8K OLED panel with self-lit pixels delivers perfect blacks and infinite contrast, processed by the a9 Gen 3 AI Processor 8K for precise upscaling. Its ultra-thin Gallery Design mounts flush to the wall, while 120Hz VRR, 1ms response, and G-SYNC/FreeSync support cater to high-performance gaming. This TV is best for gamers and sports enthusiasts seeking a cinematic 8K OLED experience in a dedicated, light-controlled room.
Snapshot
The 30-Second Version
A stunning 77-inch 8K OLED art piece from 2020 that still delivers elite contrast and gaming, but its sky-high price and dated smart platform make it impossible to recommend over modern OLEDs. Buy a current LG G4 instead and pocket the ten grand.
Pros & Cons
Pros
- Gallery Design is drop-dead gorgeous, sits flush to the wall 100th
- OLED contrast and perfect blacks are still the absolute best right now 97th
- Gaming features are top-tier: 4K 120Hz, G-Sync, FreeSync, 1ms response 96th
- Built-in 4.2ch 60W Atmos audio is surprisingly powerful and clear 96th
Cons
- webOS on this 2020 model feels sluggish compared to newer versions
- 8K content is still a ghost town, you're mostly watching upscaled 4K
- Picture quality score dragged down by peak brightness that newer OLEDs beat
- Price tag is astronomical for a TV that's technically several generations old
What owners think
The proof
Performance
What surprised us most is how this 2020 panel still lands in the 97th percentile for HDR and 96th for gaming. The self-lit pixels deliver that signature OLED infinite contrast, and Dolby Vision IQ content looks absolutely stunning, with highlights that feel three-dimensional. Gaming at 4K 120Hz with G-Sync and FreeSync support is buttery smooth, and the 1ms response time is still best-in-class. The a9 Gen 3 processor does a solid job upscaling to 8K, but it's not magic. Feed it a low-bitrate stream and you'll see some noise that newer AI processors clean up better. The 4.2-channel, 60W audio system with Dolby Atmos is a standout, easily one of the best built-in sound systems we've heard, landing in the 96th percentile. You might not even feel the immediate need for a soundbar.
Specifications
Full Specifications
Display
| Size | 77" |
| Resolution | 8K |
| Panel Type | OLED |
| Backlight | OLED |
| Aspect Ratio | 16:9 |
Picture Quality
| Contrast Ratio | Infinite Contrast |
| Color Gamut | Billion Rich Colors |
| Motion Tech | OLED Motion |
| Processor | a9 Gen 3 AI Processor 8K |
HDR
| HDR Formats | Dolby Vision, HDR10, HLG, Dolby Vision IQ |
| Dolby Vision | Yes |
| HDR10+ | No |
| HLG | Yes |
Gaming
| Refresh Rate | 120 Hz |
| Response Time | 1 |
| VRR | FreeSync, G-Sync Compatible |
| ALLM | Yes |
| Game Mode | Yes |
Smart TV
| Platform | webOS |
| Voice Assistant | Google Assistant, Alexa |
| Screen Mirroring | AirPlay 2 |
| Works With | Alexa, Google, Apple HomeKit |
Audio
| Speaker Config | 4.2 |
| Wattage | 60 |
| Dolby Atmos | Yes |
| Surround Sound | OLED Surround |
| eARC | Yes |
Connectivity
| HDMI Ports | 4 |
| HDMI Version | 2.1 |
| USB Ports | 3 |
| Wi-Fi | Wi-Fi 5 |
| Bluetooth | 5 |
| Ethernet | Yes |
| Optical Audio | Yes |
Power & Size
| Weight | 42.6 kg / 93.9 lbs |
vs Competition
Stacked against a modern Samsung Neo QLED QN800D, the ZX wins on perfect blacks and viewing angles but gets absolutely smoked on peak brightness and smart TV speed. The Samsung's mini-LED backlight gets searingly bright for HDR highlights in a way this older OLED can't touch. Against a Sony BRAVIA 5 K98XR50, the Sony offers a massive 98-inch screen for likely less money, with superior processing for motion and upscaling, though you sacrifice the infinite contrast of OLED. If you're considering this LG, you're choosing design and OLED purity over size, brightness, and modern smarts.
| Spec | LG SIGNATURE ZX OLED77ZXPUA 77" | Samsung Neo QLED QN900F | Sony BRAVIA XR XR77A95L | TCL QM7K Series 75QM7K | Hisense U7 Series 75U75QG | Roku Plus Series 75R6C7 |
|---|---|---|---|---|---|---|
| Screen Size | 77 | 85 | 77 | 75 | 75 | 74.5 |
| Resolution | 7680x4320 | 7680x4320 | 3840x2160 | 3840x2160 | 4K | 3840x2160 |
| Panel Type | OLED | Neo QLED | QD-OLED | QLED | MiniLED | QLED |
| Refresh Rate | 120 | 120 | 120 | 144 | 165 | 60 |
| Hdr | Dolby Vision, HDR10, HLG, Dolby Vision IQ | HDR10, HDR10+, HLG | HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision | Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) | Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) | Dolby Vision, HDR 10+, Hybrid Log-Gamma (HLG) |
| Smart Platform | webOS | Tizen | Google TV | Google TV | Google TV | Roku TV |
| Dolby Vision | true | false | true | true | true | true |
| Dolby Atmos | true | true | true | true | true | true |
| Hdmi Version | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Hdr | Audio | Smart | Gaming | Display | Connectivity | Social Proof | Picture Quality |
|---|---|---|---|---|---|---|---|---|
| LG SIGNATURE ZX OLED77ZXPUA 77" | 97.2 | 95.7 | 75.2 | 96.1 | 100 | 91.6 | 25.3 | 35.6 |
| Samsung Neo QLED QN900F Compare | 93.8 | 98.9 | 77.5 | 88.2 | 99.8 | 96.7 | 99.9 | 93.5 |
| Sony BRAVIA XR XR77A95L Compare | 91.2 | 91.2 | 90.2 | 86.3 | 98.5 | 83.6 | 82.1 | 96.4 |
| TCL QM7K Series 75QM7K Compare | 91.2 | 90.1 | 97.5 | 93.4 | 88.3 | 89 | 88 | 97.3 |
| Hisense U7 Series 75U75QG Compare | 91.2 | 93.5 | 95.8 | 95 | 36.5 | 96.7 | 94.5 | 98.5 |
| Roku Plus Series 75R6C7 Compare | 75.9 | 81.6 | 99.8 | 56.4 | 85.8 | 89 | 99.6 | 35.6 |
Price
Value & Pricing
At nearly twenty grand, this is not a value play. It's a luxury purchase for someone who wants the art-gallery flex and the biggest, most premium OLED LG made in 2020. For pure picture quality per dollar, you can get a current-generation 77-inch OLED like a G4 for far less money with a brighter panel and a much faster processor. This is a collector's item, not a smart buy.
Read more
Overview
The LG SIGNATURE ZX is a statement piece that happens to be a television. It's a 77-inch slab of 8K OLED that looks like it belongs in an art gallery, mostly because LG designed it that way. The one thing to know? This is peak OLED picture quality from 2020, and it still embarrasses most TVs on the market today when it comes to pure contrast and HDR pop. But you're paying a collector's price for a 2020 model, and that means its smart platform and some processing tricks are showing their age.
Common Questions
Q: Is there any real 8K content to watch on this?
Almost none. You'll be watching upscaled 4K Blu-rays and streams 99.9% of the time. The upscaling is good, but you're paying a massive premium for pixels you won't actually see from a normal seating distance.
Q: Does the Gallery Design actually sit flush to the wall?
Yes, and it's the main reason this TV exists. It mounts completely flat with no gap, looking like a framed piece of art. It's a stunning effect that no other TV from 2020 pulled off this well.
Q: How does the built-in audio compare to a soundbar?
It's one of the few TVs where you might skip the soundbar. The 60W 4.2-channel system with Dolby Atmos delivers clear dialogue and surprising bass. It won't beat a dedicated $500 setup, but it's far better than the tinny speakers on most thin TVs.
Who Should Skip This
If you're looking for the brightest HDR picture or the snappiest smart TV experience, this isn't it. Go get a current LG G4 or a Samsung S95D instead. You'll get a much brighter, more vibrant panel with a modern processor for less than half the price.
Verdict
The LG SIGNATURE ZX is a breathtaking television and a terrible financial decision. Buy it if you find one used for a steep discount and you absolutely must have the flush-mount Gallery Design with 8K OLED bragging rights. For everyone else, LG's own current OLED lineup delivers a brighter, smarter, and vastly cheaper experience. This is a trophy, not a daily driver.
