TVs and monitors · LG
Owners keep the LG CX for a picture that still looks punchy after years of gaming, movies and desk use, accepting that OLED wear is a risk some of them have met and most have not.
The picture. Owners who use it as a PC monitor, a console display or a home cinema screen say it still looks as good as the day they bought it, and several who have moved on to newer sets still describe it as one of the cleanest displays they have owned.
Burn in divides owners almost down the middle. Some report visible retention within three years, or edge damage LG would not repair without payment; a similar number say heavy use with logos, tickers and taskbars has left no mark at all.
The LG CX is a 4K OLED television from LG's 2020 lineup. It is a self-lit screen for watching films, streaming and console gaming at home. It suits people who want deep blacks and a TV that handles 4K at 120 frames per second from a PS5, Xbox Series X or PC.
| Screen sizes | 48, 55, 65 and 77 inches |
|---|---|
| Panel type | 4K OLED (self-lit pixels) |
| Resolution | 3840 x 2160 |
| Refresh rate | Native figure not stated by LG; spec sheet lists 4K at 120p input over HDMI 2.1 |
| HDR | Dolby Vision IQ, HDR10 Pro, HLG (LG calls this Cinema HDR) |
| Inputs | 4 HDMI (1 rear, 3 side) with 4K@120p, eARC on HDMI 2, VRR (G-Sync Compatible, FreeSync), ALLM; 3 USB (2 rear, 1 side); Ethernet; optical digital audio out |
| Smart platform | webOS 5.0 with ThinQ AI and Magic Remote |
| Warranty | 1 year parts and labour (LG Canada page; varies by country) |
From the maker's spec page, checked October 5, 2026. A blank row means the maker does not state it.
OLED means each pixel makes its own light, so dark scenes are truly black and the picture looks good from the side of the sofa, not just straight on. 3840 x 2160 is standard 4K, four times the detail of an old 1080p set. The 4K@120p HDMI ports with VRR and ALLM mean a current games console can run at its smoothest setting without screen tearing or added lag. Dolby Vision and HDR10 support mean films and streaming shows mastered in HDR show brighter highlights and more colour than a basic TV.
Pick up to three. You get a page with just those, side by side, on the subjects owners raised.
What still pleases people after five or six years is that the panel does not seem to fade into ordinary. Owners using it as a desk monitor, a console screen and a home cinema display say the image is still bright by CX standards and the contrast still stands out, even against the newer, brighter sets some of them have since bought. Several who upgraded did so for newer technology, not because the CX had let them down.
The adjustment is mostly mental. One owner ran the set at very low brightness for years out of burn in worry and now regrets holding it back. Others say they never think about it and watch sports, news and long gaming sessions without any screen care routine. The 55 inch size is too large for some as a desk display, and they moved to a 48 inch model to sit closer. The remote comes up as a clear complaint among the few who mention it.
Most long-term accounts describe a panel that keeps working. Owners with 10,000 hours or more of gaming and PC use say there is no burn in and no dead pixels, and several running two OLEDs side by side report the same. Brightness holds up well enough that owners expect ten years from it. When wear does appear, it takes a few forms: noticeable retention in blue skies and water, black dots or dead pixels spreading along the top and bottom edges, and in one case panel delamination at the top edge plus a motherboard replacement. Responses vary. One owner pushed a home insurance claim to get an OLED-grade replacement rather than a cheap LCD; another argued with LG, who eventually agreed to replace a low-hour screen only if the owner paid for the service.
The picture, longevity and burn in themes carry solid numbers of separate owners, so those accounts are reasonably well founded. Everything else on this page, including the remote, customer support and refresh rate, rests on a handful of owners each, and the comments behind the remote complaint were not supplied, so treat those as thin.
Parts named in the 14 accounts that describe a failure
From 67 owner accounts that said how long they have had it. Own one? Add how long yours has lasted.
Counted from the owners who raised each subject, not from everyone. A subject is judged once at least 4 owners raise it.
70 more subjects came up from fewer than 4 owners each, which is not enough for a fair reading. To see how it stacks up, compare it with another machine.
The same owner, asked again at each point. Fills in as owners answer.
Two questions: how long you have had it, and anything you would like to say about it. Then we ask again as it ages. This helps our mission.
More in tvs and monitors: Samsung QD OLED, LG C9, LG B4.
Among the 67 owner accounts here that gave a duration, 14 described a failure. Parts named most: panel, screen, display (burn-in), power/mainboard (would not turn on).
Before you buy one used, ask the seller: how old it is, whether it was ever repaired and by whom, and whether any of the parts above have been replaced. Ask to see it run. A receipt tells you the warranty start date; most makers honour the term only for the first owner.
Counted from public accounts by people who said they own it, and summarised by Still Kicks in its own words. Not a manufacturer claim, a lab test or an estimate.
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