LG TV Vertical Lines on Screen? How to Fix Guide

Are you having trouble viewing your favorite shows on your LG TV due to annoying vertical lines on the screen? You’re not alone – it’s a frustratingly common issue that many LG TV owners deal with from time to time. But never fear. You can try some simple things at home to resolve those pesky lines and restore a clear picture. So, let’s look at how to avoid the problem of LG TV vertical lines on screen.  

The methods that could be used to tackle the problem of LG TV or LG OLED vertical line fix on screen would be performing a soft reset, checking for connected devices, inspecting and securing cables, updating the TV’s software, refreshing the panel for OLED TVs, or by resetting your TV to factory settings

This guide will help you walk through some potential causes and fixes for vertical line problems on LG TVs. From quick software resets to deeper hardware tests, here are the top strategies for troubleshooting and correcting line issues so you can get back to enjoying flawless TV viewing.

See Also: LG Super Resolution: A Complete Guide

Reasons for the Issue of Screen Stripes and Lines

There might be some reasons for this issue. Here, we will cover two main reasons that can potentially cause vertical lines to appear on your LG TV screen:

Common Causes of Stripes and Lines on LG TV Screens

There are ten most common reasons for the appearance of LG TV vertical lines on screen issue:

lines on tv screen

  • Loose or damaged cables 
  • Poor cable connections to devices 
  • Overscan/underscan display issues
  • Faulty internal TV components 
  • Failed or aging backlight drivers 
  • Strong electromagnetic interference 
  • Overheating TV processor 
  • Damaged graphics processing unit 
  • Outdated TV software 
  • Physical damage to the TV screen

Proper cable connections are essential for a clear display. Other issues may require service. It’s generally best to power cycle devices when problems first arise. Seeking non-destructive solutions respects responsible ownership. Reach out if you want to know or need help troubleshooting or setting display options.

Differentiating Between Horizontal and Vertical Lines

One of the first steps in resolving line problems on an LG TV is accurately identifying whether the lines on your screen are horizontal or vertical. This distinction will help pinpoint potential causes and direct you to the appropriate solutions. 

horizontal and vertical lines on tv screen

  • Horizontal lines will parallel the TV’s status bar and stretch from one side of the screen to the other. Some common culprits include loose or faulty video cables, signal interference plaguing the TV’s internal circuit boards, or failing capacitors in the screen’s backlight circuitry. Re-seating cables and checking for nearby electromagnetic devices are good places to start for horizontal lines.
  • Vertical lines, however, run parallel to the TV’s volume and channel buttons from top to bottom of the display. Overheating processors, damaged graphics cards, or stressed solder joints on internal flex cables often underlie these stripes. Cooling vents may need clearing, updated drivers could help, and repositioning the TV may sometimes lessen thermal issues. Don’t avoid mistaking the LG TV picture-in-picture as your vertical line issue, though! 

Clarifying whether the lines come on the screen horizontally or vertically will help you identify likely hardware or signal transmission problems over software-related solutions. Getting the problem right at the very beginning saves time and effort from guessing the solutions down the road. Ask away if you have any other questions! Proper identification is essential for appropriate troubleshooting. 

See Also: LG TV Warranty Check: How To Ensure Your TV’s Coverage

Step-by-Step Solutions to Resolve Screen Stripes and Lines

Below are 6 step by step solutions to solve LG TV vertical lines on screen. Follow closely, and you might find your solution:

Tip 1: Performing a Soft Reset

Under are detailed points showcasing how to perform a reset that might solve your screen problems:

  1. Press and hold the power button on the TV for 10-15 seconds until the TV turns off. press power button
  2. Unplug the power cord from the back of the TV for 1-2 minutes. 
  3. Plug the power cord back in and switch the TV on with the remote or power button. 
  4. This soft reset clears temporary files and caches, which may resolve issues. 
  5. It allows the TV software to fully restart without erasing custom settings. lg tv restart
  6. More than a soft reset was likely needed to solve the problem if the lines persisted.
  7. But it provides a simple first step to try before moving on to deeper troubleshooting tests.

Performing a soft reset by unplugging the TV is a non-invasive way to refresh the software environment and fix minor glitches. It’s always a good place to start when encountering new display abnormalities. This is one of the easiest ways to solve the problem of LG TV vertical lines on screen. However, it can mess with the screen saver of your LG TV

Tip 2: Checking Connected Devices

Under are detailed points explaining how to check connected devices to be sure it’s not a reason for your screen issues:

  1. Disconnect all devices connected to the TV, like set-top boxes, Blu-ray players, or game consoles.tv unplugged
  2. Turn the TV on directly with just the internal tuner active.  
  3. See if the lines persist on the default input screen. If they disappear, the issue may lie with an external device.  
  4. Try different HDMI ports and cables to troubleshoot problematic connections.tv ports and cables
  5. Update the device firmware or replace older cables exhibiting wear.update software if any update is available
  6. Related devices are a common point of signal interference. Isolating the TV helps pinpoint such potential connectivity faults.

Checking for line issues solely on the TV’s built-in screens helps rule in or out any linked component as the issue’s origin. It’s an essential step before probing the TV further. It also fixes when your LG TV gets too dark. I hope it fixes the LG TV line on screen. 

See Also: How To Unlock LG TV From Hotel Mode: Expert Tips

Tip 3: Inspecting and Securing Cables

Under are some tips for inspecting and securing cables to solve LG TV vertical lines on screen issue:

  1. Check all cables are fully plugged in securely at both ends, with no loose connections. Wiggle cables to ensure tight fitting.plug the tv cables
  2. Inspect visually for any damage or frays that could interfere with the signal. Gentle bends are okay, but no tight coils or knots. 
  3. Organize cables neatly with cable ties or Velcro strips to prevent excessive tension or accidental pulls. Cables should hang freely without strain.twist ties
  4. Try different HDMI ports if lines occur only with one device. Wall mounts can place pressure on specific ports over time. plug cable into different hdmi port
  5. Ensure adequate spacing between cables and other electronics to minimize magnetic field interference—at least 6 inches of separation where possible.  
  6. If lines persist, carefully feel along cable sheaths for bulges, cracks, or kinks that could impact signal quality over repeated flexing. Replace any damaged cables.damaged cable
  7. Proper cable handling avoids unnecessary wear that triggers issues like intermittent vertical lines. Taking time for routine inspections can save more severe repairs down the line. 

Under are detailed points on updating the TV’s software to solve the issue of LG vertical lines on screen:

  1. To check for updates on LG smart TVs, go to Settings. From there, go to Support. You’ll find Software Update there. Update manually, or the TV will automatically download and install new versions. software update on tv
  2. If an update is available, downloading and installing it could resolve problems like vertical lines. update software if any update is available
  3. Software updates often include fixes for recently reported issues. Keeping your LG TV current helps ensure optimal performance and stability.
  4. Be aware updates can take 30-45 minutes to complete, depending on size. Avoid interrupting or unplugging the TV until you see the Home screen again.home screen layout

Tip 5: Refreshing the Panel for OLED TVs

LG OLED TVs have a built-in screen refresh feature to help correct pixel unevenness and potentially remove stubborn LG TV vertical lines on screen. Here are the basic steps to run a panel refresh:

  1. Make sure your LG TV is connected to WiFi for the latest firmware and access to the service menu. wifi
  2. Enter your TV’s service menu using the remote. It’s usually accessed by pressing left/right/up/down on the remote’s directional pad for a few seconds. Then, navigate to the screen section and select “Pixel Refresher” or “Refresh Screen Now.” pixel refresher
  3. The screen will dim, and you’ll see a progress bar as the refreshing process runs, usually taking 30-45 minutes. progress bar
  4. Once complete, the TV will automatically restart. Check if the vertical lines have reduced in appearance.lg tv restart

Running a full panel refresh every 2,000 hours of use or once every 6-12 months is recommended as preventative maintenance. Letting the TV fully power off between uses can also ensure a successful refresh.

If lines persist, try more refreshes spaced a few days apart. Be patient; it can take multiple refreshes to correct uneven pixels fully. Avoid the urge to run refreshes too frequently, as this can cause more harm and accelerate uneven wear. 

Tip 6: Resetting Your TV to Factory Settings

For some LG OLED TV owners, vertical lines or other unexpected issues may arise that cannot be addressed through standard troubleshooting or panel refreshing methods. In these cases, resetting the TV to its original factory settings can resolve glitches by reinitializing hardware and software components.

  1. From the home screen, select “Settings” and then navigate to the “General” section. settings
  2. Look for an option called “Reset to Initial Settings” or “Reset” and select it. reset to initial settings
  3. The TV will prompt you to confirm the reset – select “Reset” again to proceed. confirm factory reset
  4. The TV will now power off and on automatically as part of the reset process. tv power off
  5. Once restarted, the setup wizard will guide the initial configuration as if it were new out of the boxsetup wizard
  6. Re-enter WiFi and streaming account sign-in details as needed.fill sign in details
  7. Check if the vertical lines or other issues remain after the reset. 
  8. Consider being patient and running a few additional panel refresh cycles, as a reset can redistribute uneven pixel wear.

While a factory reset brings some inconvenience of reconfiguring personalized settings, it can clear software bugs and restore hardware components to their most optimal functions in stubborn cases. You may miss your best LG TV picture settings after it. However, you can always reset! 

Combining a TV reset with panel refreshing gives the best chance at a long-term fix for vertical lines that won’t be removed otherwise. I hope any of the above solutions on the LG TV vertical lines on screen issue helped. 

Preventive Measures and Maintenance Tips

Here are some preventive measures/steps and maintenance tips that you can take to prevent screen Issues:

Regular Maintenance to Prevent Screen Issues

While LG puts a great deal of engineering into their OLED displays to withstand daily use, regular maintenance can help your investment continue performing at its peak and prevent unwanted screen issues like vertical lines down the road

lg tv screen issues

  • Performing a screen refresh every few months removes uneven pixel wear and balances all colors. Be sure to allow plenty of ventilation around your TV to keep internal temperatures low. Direct sunlight or heat sources pointed at the screen for extended periods should also be avoided.
  • Limiting high peak brightness levels and total hours watched on a daily/weekly basis prolongs the lifespan of the light-emitting organic material that makes OLED so spectacular. Adjusting your backlight and brightness preset based on content and ambient lighting conditions helps achieve this.
  • Dusting the screen weekly or as needed with a microfiber cloth prevents particles from getting embedded, and some TV models even have a “self-cleaning” mode that gently vibrates dust away from the surface. Finally, calibrating your picture settings ensures accurate colors, which removes stress on specific pixels over time. 

With simple care habits, your LG OLED will look incredible for many years of entertainment. Proper maintenance is critical to getting the most out of this premium technology.

See Also: LG TV Error Codes: A Comprehensive Guide

Best Practices for Prolonging TV Lifespan

Under are some tips on best practices for prolonging the lifespan of your LG OLED TV:

lg smart television

  • Limit Brightness – Keeping overall brightness levels no higher than necessary can significantly extend the life of the screen. OLED pixels degrade faster at peak brightness.
  • Avoid Static Images – Displaying fixed images like logos or game HUDs for extended periods increases the risk of screen burn-in. Consider adjusting the screen saver or enabling pixel shifting if available. 
  • Calibrate Regularly – An accurate picture setting prevents overworking specific color pixels—Re-calibrate annually or as needed to maintain the optimal black level and color accuracy.
  • Cool Operating Temps – Good ventilation and avoiding direct sunlight helps ensure the panel doesn’t get too hot during operation. Heat accelerates the chemical breakdown of OLED materials over time. 
  • Use Quality Cables – Certified HDMI cables that fully support the TV’s resolution and HDR capabilities prevent issues caused by ineffective video transmission to the screen. 
  • Limit Off-Hours Use – Turn off the TV completely when not in use. Leaving it on standby or displaying ambient screens like clocks also puts hours on the panel, even if not actively watched.
  • Service Warranty Register your TV’s limited warranty in case service is needed down the road. Accidental damage and burn-in may not be covered, but manufacturers will repair mechanical or electrical breakdowns within the coverage period.
  • Model Updates – Always install the latest firmware over WiFi for your specific TV model number. Software patches can address emerging issues and extend product life expectancies. 

By observing some basic best handling practices, LG OLED owners can maximize the lifespan and continued enjoyment of their premium investment for many years of entertainment. Small behaviors make a big difference in preserving screen health long-term and avoiding LG TV vertical lines on screen.

Also, explore how cold can a TV get and learn how to change the input on your hotel TV and enjoy seamless access to all your favorite content.


How do I fix the vertical line on LG TV?

First, try running your TV's built-in panel refresh process to fix disturbing vertical lines, which takes 30 minutes to correct uneven pixel wear. If lines persist after multiple refreshes, resetting your LG television to factory defaults may do the trick. However, it can take time for lines to disappear entirely.

Can I fix horizontal lines on my TV?

Common issues like loose connections, aging cables, or dusty vents can cause lines. Gently remove any debris and check cable tightness and positioning. Software/firmware updates also help. If resetting and updates don't work, lines could indicate deeper problems requiring service help for analysis. Minor adjustments are worth trying first.

How much does it cost to fix vertical lines on TV?

The repair cost can vary depending on the issue's cause and your TV model. Common causes like faulty cables are inexpensive to address yourself. More severe problems involving electronics or circuitry may require technician service. Expect repair shops to charge around $150-$500 for most vertical line issues.

Why do LCD screens get lines?

Lines can get developed due to faulty components inside. Worn cable connections may cause signal interference lines. Overheating can crack the LCD layer over time, triggering lines. Dust buildup or screen trauma also contributes by blocking backlight uniformity. Proper ventilation and avoiding hard impacts help prevent line issues on screens.


So, this was your guide on LG TV vertical lines on screen. With the proper care and maintenance, LG’s OLED TV panels are designed to last many years of viewing enjoyment. However, occasional screen issues that require troubleshooting can still arise.

By practicing preventative habits like regular screen refresh, avoiding excessive peak brightness, ensuring adequate ventilation, and using certified cables, OLED owners can prolong the lifespan of their investment and reduce the risk of display defects. Ask away if you’ve any more quest the LG OLED vertical line. 

Also, investing in a high-quality LED TV from a reputable brand can contribute to a longer lifespan and better overall performance.

See Also: LG TV Stuck On Logo Screen? Here Are 9 Ways To Fix

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