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How To Fix Dark Shadow On LG TV Screen

How To Fix Dark Shadow On LG TV Screen

Is your LG TV screen plagued by a dark shadow and not showing the picture clearly when you are playing a game or watching a channel? If so, don’t fret, as this problem is relatively easy to address and resolve.

In this article, we will show you how to fix this shadow with some easy and straightforward solutions, depending on the cause of the problem. 

Why Is There A Dark Shadow On My LG TV?

  • The backlight is set too low, or the backlight LEDs are damaged
  • Failing Pixels
  • Energy saving mode is enabled
  • Incorrect TV mount
  • Overheating issues
  • Debris, moisture, or dirt build up on the screen
  • Minor TV software glitches

How Do I Fix The Shadow On My LG TV?

Clean the TV Screen

First and foremost, try cleaning your LG TV screen to clear out any dust or debris affecting the display.

  • Power off your LG TV and unplug it from the main power source.
  • Take a microfiber cloth to wipe the screen.

Turn Off The TV For A While

The next solution is to turn off your LG TV for at least 3 hours. This will help fix the burn-in caused by static images, reduce the temperature, or reset the failed pixels in the panel that are resulting in the dark shadow on your TV’s screen.

To do this, simply power off your LG TV and remove its cable from the wall socket. Then, plug back the cable after 3 hours and turn on the TV.

Play an Off Air Channel

Play an off-air channel that shows varying amounts of information and changes pictures (color and brightness) more often.

  • Press the “Input/Source” button on the remote supplied with your TV.
  • Choose “Antenna.”
  • Tune your LG TV to an off-air/non-broadcasting channel.
  • Tune the TV back to normal after 8-9 hours.

Disable the Energy Saver

Another solution is to disable the energy saver that can fix the LG TV’s automatic dimming or display a dark shadow.

  • Press the “Smart” button on the remote supplied with your LG TV.
  • Choose “Settings” and press “OK.”
  • Select “All Settings” and press “OK.”
  • Choose “Picture” and press “OK.”
  • Select “Energy Saving.”
  • Finally, set energy saving mode to “OFF.”

Configure Your TV’s Picture Settings

Next, configure your LG TV picture settings to increase the blacklight (OLED) and brightness.

  • Press the “Smart” button on the remote that comes with your LG Smart TV.
  • Go to “Settings” and press the “OK” button on the remote.
  • Choose “All Settings” and press “OK.”
  • Next, select “Picture” and go to “Picture Mode Settings.”
  • Now, set the picture mode to “Vivid” for the highest blacklight and brightness level.

Avoid Playing Video Games With Static Boxes

Playing video games that don’t display static images on your LG TV is advisable because prolonged exposure to these images can cause them to be permanently burned into the screen, resulting in a dark shadow. 

To counter this issue, try playing video games that don’t show the power level on the TV.

Change The Backlight LED On Your TV

There’s a possibility that a broken circuit is causing dark shadows on the side of your LG TV. If you’re not a TV technician or very handy at replacing the backlight LED, this isn’t a DIY fix.

Therefore, contact a professional TV technician who can replace the damaged backlight LED.

Note: Do not turn on your LG TV until it’s been fixed. Do remember that even after repair, the backlight might fail again, so always ask for a warranty period. 

Loosen the Screws on the Back of the LG TV

Over-tightened screws can often cause unevenness in the backlights resulting in cloudy patches or dark shadows. To check this:

  • Power off your LG TV and unplug it from the main power source. 
  • Take a screwdriver and give a ¼ turn to the screws along the rim on the back of your LG TV. 
  • Plug your TV back into the mains and power it on. 

Support the Back of the TV

If you’ve mounted your LG TV incorrectly or on the floor from where you transport it more often, it can cause a screen issue. 

  • Ensure that your TV is set on an even surface. 
  • Take a screwdriver and tighten the screws on the base of your LG TV. 
  • If mounting on a side wall, use a wall bracket to stabilize your TV.

Note: If you’ve connected other devices to your LG TV, make sure to check their cable connection for damage and replace the cable or remove the device if needed. 

Reset the LG TV

The last solution is to factory reset your LG TV to its default settings to clear out any minor technical bugs or glitches that are causing the TV to get stuck on standby or have screen issues.

  • Press the “Smart” button on the remote that comes with your LG Smart TV. 
  • Go to “Settings.”
  • Select “All Settings” and press “OK.” 
  • Now, head to “General.”
  • Next, choose “Reset to Initial Settings.” 
  • Select “OK.”
  • Finally, follow the on-screen instructions to complete the reset process and set up the TV afterward. 

Contact LG Support

If the solutions above fail, get in touch with LG support to request an authorized repair. 

  • Open a browser on your computer and head to the LG Support website. 
  • Navigate to “Direct Service.”
  • Go to the “Request Service” page.”
  • Click “Begin Service Request.” 
  • Next, click “Start A Service Request.” 
  • Sign in to your LG account, create a new one, or continue as a guest. 
  • Fill out the form with product information, issue, and contact details. 
  • Now, submit the form and wait for the Support Team to get in touch with you for the repair. 

Note: If you are an LG Premium Care Service Plan customer, you can also contact LG Support via call at 866-558-2559. 


In this article, we’ve explored how to fix the dark shadow on your LG TV screen and explained why this issue continues manifesting. 

We hope your troubles are over, and you can now enjoy TV shows or movies on your LG TV with a crystal-clear display. 


  • Tauqeer Ahmed

    Tauqeer Ahmed is a technology expert with over 10 years of experience in the industry. He has a degree in Computer Science and specializes in network security and software troubleshooting. You can find out more about him at

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