A backlight is a light source positioned behind the LCD panel that illuminates the pixels, allowing you to view the image on the LG TV screen. If you see an odd black spot or a full black screen on your LG TV, the issue might be due to a defective backlight. It happens if the backlight fails to receive power from the power board, or the T-Con board itself might undergo a functional failure.
However, there is a chance that you might mistake the backlight for another issue and go for a replacement. So, to avoid this commotion, take a look at our review on how to tackle the LG TV backlight issue easily.
Common Problems on LG TV Due to a Backlight Failure
Here, we have described the most common issues LG TV users have reported yet.
Bright Patches
Over time, the glue on the LED diffusers may be dried up and cause them to be nonsticky. Consequently, it can stuck back on with epoxy when you open the TV’s case.
Backlight Flickering
A backlight may flicker because of a failure on the power board or a loose connection.
Half the Screen Has Turned into a Dark
A cable might be loosely seated on the T-Con board. You can rectify it by cleaning the cable’s contacts and firmly re-connecting it.
No Backlight At All
If any of the components on the power board have become faulty, you won’t see any light.
Faint Images
If the backlight strips have become defective, you can replace them by spending a few dollars.
Vertical Dark Patches
Only one LED strip will be there at the top and bottom of the panel for edge-lit LG TVs. If there is an Edge LED failure, it can be prone to show vertical dark patches on the TV screen.
How to Know if the Backlight on LG TV is Damaged?
The structure of a backlight consists of a series of LED lights to produce images on your TV. However, the backlights are vulnerable to improper power supply, heating, and circuit issues. This results in the backlight issue on your TV.
To protect your backlight from this, use a stable power outlet and install a power stabilizer for your LG Smart TV.
How to Fix the Backlight Issue on Your LG TV
If you confirm that your TV’s backlight is defective, replacing it is the best option. This can fix the top half of the black screen, green tint, flickering on LG TVs, and many other issues.
Since the backlight is an essential part of your television, we recommend you let the technicians deal with this. You can contact the LG TV Customer Service or a local technician to do this job. Also, we recommend our readers check the warranty period for your LG TV. Luckily, if your LG TV falls under warranty, you can claim a free service to change the backlight.
If you find our help promising, we are happy to hear about it. Similar to the backlight problem, if you’re facing any other issues on your LG TV, contact my community forum for help.
