Thank you for writing to the Dell Community Forum.
Request you to please run a test on the LCD screen, to initiate power on the system while holding down the letter D key. The screen will display multiple colors and change to solid colors red, blue and green, check if the back-light bleed is still present on the LCD screen. Also check the system in the BIOS page to see, if you notice the back-light bleed. Please send us a picture on private message, of the LCD screen so that we can replace it as per your warranty entitlement on the system service tag.
Kindly get back if there are any further queries.
For me to better assist in troubleshooting, please click my DELL-username and send me a Private Message with the Dell Service Tag number and your email address.