# LG OLED vertical stripe

> LG OLED with a vertical stripe or line? Often panel or T-Con — when AmparioWeb can help with PSU/mainboard and when panel failure gets costly.

## In short

A **vertical stripe** or **line on screen** on an **LG OLED** — often a **line from top to bottom** — is a classic image fault. In many cases the cause is the **panel** or drive path (**T-Con**, Timing Controller), not the power supply.

AmparioWeb is honest: we are strong on **PSU** and **mainboard** issues. For a clear panel stripe we do not sell a PSU as a miracle fix. This article helps you separate the cases.

## What users typically see

Appearance varies but usually stays in the same place:

- Thin or wide **line** from top to bottom
- Several parallel vertical lines
- Stripe brighter, darker or tinted
- Sometimes only on certain content, often permanent

## Panel / T-Con vs PSU — how to tell

Rule of thumb: if the TV **starts reliably**, sound and menu work, but the picture shows a fixed **vertical stripe**, that strongly suggests **panel** or **T-Con** path — not aging film caps in the PSU.

The **PSU** more often causes: no start, intermittent shutdown, clicking, missing standby LED, aborted pixel refresh. Mainboard faults can affect the image, but a single sharp vertical line is often panel-adjacent in practice.

## When AmparioWeb can help

AmparioWeb makes sense when **power or start symptoms** appear in parallel: won't turn on, shuts off, blinks, or clear PSU/mainboard hints. Then tested boards or fixed-price repair can save the set — without a panel swap.

For **only** a stripe with otherwise stable operation: diagnose first, do not blind-order a PSU. Via [Support](/en/support) and [Find part number](/en/nummer-finden) we clarify whether a board could even help.

## What a panel fault means

OLED panel replacement is expensive — often near new-set cost depending on size and series. Honest framing: vertical stripes are frequently an **economic write-off** scenario, not a €50 capacitor fix.

That does not mean “hopeless” — it means clarify expectations and cost before shipping and hope costs pile up.

## Useful first steps (no chassis opening)

Before taking it apart:

- Photo/video of the stripe across content and brightness levels
- Check whether the stripe stays in menus / built-in test patterns
- Compare external HDMI vs smart-TV apps
- Note the model and contact [Support](/en/support)

## Safety notice

If you still open it: **mains voltage is lethal.** Panel flex cables and T-Con are fragile. Without experience, better not disconnect — a wrong move can worsen the damage.

## Next step with AmparioWeb

Describe symptom and model via [Support](/en/support) or start careful mapping via [Find part number](/en/nummer-finden). For PSU/mainboard suspicion: [Repair](/en/reparatur) and [Parts](/en/bauteile).

Related power articles: [won't turn on](/en/blog/lg-oled-fernseher-geht-nicht-mehr-an), [turns itself off](/en/blog/lg-oled-schaltet-sich-alleine-aus).

## FAQ

**Is a vertical stripe always the panel?**

Very often panel or T-Con path — but not without exception. Parallel start/power symptoms change the order of suspicion.

**Will a new PSU fix the line on screen?**

Usually no if the TV otherwise runs stably and only the stripe bothers you. PSU swap without diagnosis is expensive guessing.

**What does T-Con mean?**

**T-Con** = Timing Controller: board/logic that times image data to the panel. Faults there or in the connections can create lines.

**Is a repair request still worth it?**

Yes for **triage**. AmparioWeb will say clearly when it sounds like panel — and when a board makes sense. Better clarify before shipping.

**Is this the same as burn-in?**

No. Burn-in / image retention affects areas and logos. A sharp vertical line is a different fault picture.