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9 of 10 LG WOLED TVs develop edge rot after 18,000 hours

Lena Fischer 0 comments 2 min read

Rtings long- term testing reveals that 9 of 10 LG WOLED TVs suffer from edge rot after 18,000 hours. Find out which models are immune.

9 of 10 LG WOLED TVs develop edge rot after 18,000 hours
PC HARDWARE

Certain LG OLED smart TVs seem to be suffering from a unique type of age-related failure known as edge rot. Edge rot is important to buyers since it has the potential to ruin your viewing experience by frying pixels around the edges of your screen. Edge rot seems to have something to do with the WOLED panel technology found in many models.

Long-term testing reveals widespread pixel burnout in older LG OLED models

The team over at Rtings did a long-term test on 10 Smart TVs featuring LG WOLED panels. They ran the tests for 18,000 hours of operation to simulate years of use. 9 out of 10 of these smart TVs end up suffering from the edge rot defect.

Edge rot susceptibility

Spec Affected Models Immune Models
LG WOLED BX, CX, A1, B1, C1, B2 A2 (2022), G3 (2023)
Other Brands Sony A80J, Sony A8H, Vizio 2020 N/A
Samsung QD-OLED N/A All tested models

The edge rot defect consists of a bunch of pixels around the edge of the screen burning out. It looks like black mold spreading around the edge of the screen. Rtings suspects that the underlying cause is a manufacturing contaminant or poor sealing allowing moisture in.

There are a lot of models and brands that seem to be affected. Examples include LG OLED BX, CX, A1, B1, C1, and B2. In addition to LG models, we've also seen the Sony A80J OLED, Sony A8H OLED, and 2020 Vizio OLED Smart TV affected by this defect. We have seen some models that are immune to this particular flavor of failure.

One LG model, the LG OLED A2 from 2022, seems to be one of the LG models that doesn't get edge rot. Additionally, we see no signs of edge rot on the LG OLED G3 2023. Samsung Display's QD-OLED TVs don't show signs of edge rot either. This points to some kind of defect in certain implementations of LG's WOLED panels, not all OLED panels.

The main driver of this defect seems to be age since production, not necessarily age since use. This is what makes edge rot different from other types of burn in. Be aware that older WOLED panels are more prone to failure like this. Newer models like the G3 seem to have fixed the issue with sealing/manufacturing.

Source: NotebookCheck

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