LG OLED Protection Features: TPC, GSR and Logo Dimming

Answer first

Keep LG's documented OLED Care protections enabled for normal mixed use. If the screen dims unexpectedly, first determine whether the cause is a large bright image, an unchanged scene, a logo/static region, Energy Saving, or the source device. These systems can overlap.

“TPC,” “GSR” and “ASBL” are common enthusiast/service terms, but LG does not publish a complete consumer specification for their detection algorithms. Exact behavior and service-menu availability vary by model and firmware.

Documented consumer protections

Depending on model and region, LG OLED Care can expose features such as:

• Screen Move/Screen Shift: shifts the image subtly to spread wear from persistent edges.
• Logo or static-region brightness adjustment: reduces luminance around detected persistent elements.
• Screen saver or no-signal behavior: limits an unchanged display when content stops.
• Pixel cleaning: compensation maintenance intended to manage panel uniformity over time.

Use the names and instructions in the current manual for the exact TV. Do not repeatedly run manual pixel cleaning as routine maintenance unless LG's guidance for that model calls for it.

ABL, TPC and GSR are not interchangeable

ABL is the common name for power/thermal limiting when a large area is bright. TPC/ASBL is associated with dimming during images judged static. GSR is a service-menu term linked by enthusiast documentation to persistent bright/static regions.

A paused dark scene, a white spreadsheet and a news logo can therefore produce different behavior. A single hidden toggle is not a universal “auto-dimming fix.”

Diagnose before changing anything

1. Compare moving content with the paused or static case.
2. Check Energy Saving and the source device's screen dimmer.
3. Compare a small bright object with a nearly full-screen white window.
4. Record the TV model, region, firmware, input, picture mode and signal type.
5. Test a safer SDR brightness and automatic display sleep for desktop use.

HDR10, Dolby Vision and SDR can activate different picture settings. Diagnose the format that actually exhibits the problem.

Why service changes are risky

Factory interfaces can expose settings that are not intended as user picture controls. Disabling a protection layer can increase uneven wear or permanent image retention and may complicate warranty or support. Firmware can also remove, rename or repurpose an entry.

If an advanced workflow is still necessary, read Service Menu Access, photograph every original value and change nothing unrelated. There is no safe universal path for C1–C4 and G1–G4.

OLED Control can operate only controls supported by the connected television and app version. It cannot guarantee that a protection option exists, prevent panel wear, or override television firmware.

Temporary retention versus permanent wear

Temporary image retention can appear after a high-contrast static element and fade with normal varied use. Burn-in is permanent uneven aging: pixels repeatedly driven harder no longer match surrounding output. A photograph alone may not distinguish them immediately, so stop the static source, allow the television's automatic standby maintenance and reassess with normal content.

Do not loop manual Pixel Cleaning. LG provides model-specific guidance because compensation is a maintenance process, not an eraser for every artifact.

How automatic compensation fits

Short compensation can run after accumulated use when the TV enters standby. Longer Pixel Cleaning is intended for defined conditions. Disconnecting mains immediately after every session can prevent scheduled maintenance. Leave the TV in normal standby unless LG instructs otherwise.

Menu paths differ by webOS generation. Use the exact manual rather than one universal “OLED Care” route.

Practical protection by use case

For films and varied television, keep default protection and use comfortable room-appropriate output. For gaming, reduce or hide static HUD elements where the game allows and avoid leaving pause menus indefinitely. For PC work, auto-hide taskbar/Dock, use screen sleep, vary window placement and select moderate SDR brightness.

These habits reduce repeated high-luminance exposure; they do not create zero risk. Screen savers help only when they actually start and should not replace display sleep.

Diagnose a suspected mark

Check several full-screen colors briefly and then normal mixed scenes. A mark that follows the content is encoded; a mark fixed to panel coordinates may be retention or uniformity. Photograph with fixed exposure and include normal-content visibility. Avoid extreme edited photos as the only support evidence.

Contact LG when a persistent content-shaped mark remains after normal automatic maintenance, or when lines, blocks or one-sided failure appear. Provide model, firmware and usage context.

Why logo controls should remain enabled

Logo/static-region reduction targets repeated bright elements without globally lowering every scene. It can occasionally react to scoreboards or subtitles, but disabling it globally trades that annoyance for higher cumulative exposure. Adjust only documented consumer levels after comparing normal content.

Protection FAQ

Does Screen Move crop the image?

It shifts by a small amount, so a narrow changing border can be expected. Large cropping indicates aspect/overscan instead.

Should manual Pixel Cleaning run weekly?

No. Follow LG's model-specific guidance and automatic schedule.

Are TPC and GSR calibration controls?

No. They relate to protection behavior and do not set color accuracy.

Does a five-year panel warranty remove the need for care?

No. Coverage terms vary by product and region, and good usage remains relevant. Read the exact warranty rather than assuming every C- or G-series size has identical panel coverage.

Can a screen saver replace power-off?

A moving saver reduces one static pattern, but still drives the panel. Display sleep or normal standby stops visible output and permits scheduled maintenance.

Sources

• LG — How to prevent image retention or burn-in
• RTINGS — Real-life OLED burn-in test (secondary)