New LG OLED C1/C2 Vertical Banding: Wait, Compensate or Exchange?

Quick Answer

Faint vertical bands on a brand-new LG C1/C2 can be panel-uniformity structure that changes during early normal use and automatic compensation. Judge it with ordinary dark scenes from the normal seat, allow the TV to complete its normal standby maintenance, and reassess. Do not run repeated manual Pixel Cleaning cycles or leave gray test slides displayed for hours.

A bright red/green/blue line, a solid black column, half-screen failure, blocks, or a line visible in LG's menus across every source is not ordinary “break-in” banding. Document it immediately and contact the retailer/LG within the return or warranty period.

Symptoms: Uniformity or Hardware?

Typical near-black vertical banding

• Soft darker or lighter vertical columns visible around very dark gray.
• Most obvious in slow pans through fog, skies or dim walls.
• Hard to see in bright/colorful material.
• Fixed to panel coordinates but without a saturated color.
• Appearance can vary with panel temperature, early usage and compensation state.

Potential hardware defect

• One-pixel or narrow bright colored line from top to bottom.
• A black vertical column that removes image detail.
• Half the display is dark, tinted or absent.
• Blocks, flashing lines or corruption appear in LG's own menu.
• The line remains equally obvious in bright normal content.
• The TV power-cycles or the defect changes when chassis pressure/cable position changes.

Source artifact

• The band moves with the camera or appears in a screenshot.
• It occurs only in one stream or game.
• Contour rings follow a gradient rather than remaining fixed.
• HDMI sparkles/lines disappear with a different cable or source mode.

Causes: Why a New OLED Can Look Uneven

Near-black panel variation

WOLED panels must control extremely small luminance steps just above black. Manufacturing variation and compensation state can make columns visible in near-black fields. Uniformity differs by individual sample; another C2's photograph is not a calibration target.

Early compensation

LG TVs run automatic compensation after accumulated usage when left in standby. New-panel uniformity can settle as the panel experiences normal varied content and maintenance. There is no authoritative universal “break-in” hour promise, and owners should not run static loops to reach one.

Camera exaggeration

Phone night mode and auto exposure amplify dark-gray differences far beyond normal viewing. A dramatic photo can be useful to map location but not prove everyday severity. Use fixed exposure and include a normal scene.

Shipping or panel/electronics fault

Colored lines, missing columns and half-screen failures can indicate panel bonds, driver electronics or physical damage. These are not corrected by normal compensation and should be handled through service/return.

Step-by-Step Safe Assessment

1. Inspect for physical damage before prolonged use

Check packaging, panel surface and connectors without pressing the screen. Confirm the TV stands/mounts according to LG instructions. Photograph visible cracks, bends or colored lines immediately. Do not massage or press the panel.

2. Test internal menus

Open LG's Home/settings and an internal app, then disconnect HDMI devices. A line crossing the TV's own interface is panel/electronics-related. If only one HDMI source shows it, use another port/cable and inspect source output.

3. Use normal content first

Watch varied films, sports and bright scenes from normal distance. Choose one known dark pan for repeatability. If bands are visible only on a paused gray slide from very close range, avoid turning the test into the problem.

4. Allow automatic standby compensation

After normal viewing, turn off with the remote and leave mains connected. Do not interrupt standby. Reassess after the TV has had opportunities to perform its designed maintenance. Exact trigger timing varies.

Do not manually run Pixel Cleaning repeatedly. If LG's support flow later recommends one consumer cycle for persistent lines/spots, run it once and let it finish. Factory compensation commands are excluded.

5. Briefly use several uniform levels

If normal content reveals a problem, display brief 1–5-percent gray, mid-gray and primary-color fields from a trusted local source. Fixed dark columns across gray indicate uniformity; saturated one-pixel lines across colors indicate hardware. Keep tests short and return to normal content.

6. Document consistently

Lock camera exposure, position and room light. Photograph the same scene before and after standby maintenance. Include model suffix, firmware, purchase date and viewing distance. Avoid edited contrast as the only evidence.

7. Decide: keep, monitor or exchange

Keep/monitor when faint near-black structure is invisible in normal viewing and improves or remains unobtrusive. Contact the retailer during its return window when bands materially affect ordinary content and the sample is unacceptable to you. Contact LG promptly for colored lines, missing columns, half-screen failure or menu-visible corruption.

C1/C2 Size and Model Caveats

C1/G1 are 2021 panels; C2/G2 are 2022 with size-specific implementations. The 42-inch C2 is viewed closer and can reveal structure less visible on a sofa-viewed 65-inch set. G-series branding or increased brightness does not guarantee perfect near-black uniformity.

Panel replacement results vary by sample. Copying white balance cannot correct spatial vertical structure and may introduce color error. Brightness or black-level adjustment can hide a band only by crushing legitimate shadow detail.

What Not to Do

Do not run YouTube “panel refresh” loops overnight. Do not schedule manual Pixel Cleaning daily. Do not enter the service menu, change panel type or execute factory aging/compensation commands. Do not press, heat or wipe aggressively over a line.

Do not accept “all OLEDs do that” as an answer to a bright colored line or missing image column. Conversely, do not label subtle 1-percent-gray structure as a failure without checking normal content and automatic maintenance.

FAQ

How long should I wait?

There is no universal break-in hour count. Use normal varied content, allow standby maintenance and stay within the retailer's return window while evaluating.

Should I run manual Pixel Cleaning on day one?

No routine day-one cycle. Use automatic maintenance; manual use follows LG's guidance for a persistent symptom.

Can vertical bands become better?

Near-black uniformity can change with early use/compensation. Hardware colored lines and missing columns generally require service.

Is a pink tint vertical banding?

Tint can involve panel/viewing-angle/coating uniformity and needs a separate assessment from dark-gray luminance bands.

Will calibration remove the bands?

No. Calibration corrects measured color/gray tracking, not spatial panel structure.

Sources

• LG — Pixel Cleaning for spots, lines and dots
• LG — Troubleshoot picture color/lines with self diagnosis
• LG — OLED reliability and automatic care
• RTINGS — LG C1 gray uniformity measurements
• RTINGS — LG C2 gray uniformity measurements
• Reddit — New OLED owner reports about vertical bands