Product Description

The Samsung BN97-21027A Mini-LED Backlight Sheet Set is a complete replacement backlight assembly designed for Samsung Neo QLED Mini-LED TVs. Unlike traditional LED strip systems, this model uses Mini-LED backlight sheets to deliver precise local dimming, superior contrast, and uniform brightness across the entire screen.

This listing includes ALL backlight sheets required for TV model QN85QN90DAF, making it an ideal solution for Mini-LED backlight failures such as dark zones, uneven brightness, or total backlight loss. Replacing the full sheet set ensures proper performance and restores the TV’s original picture quality.

What’s Included

• Complete Mini-LED backlight sheet set
  
• All sheets sold together as a set (not individual pieces)

Compatibility

Known Compatible Model:

• Samsung QN85QN90DAF

⚠️ Important: Samsung Mini-LED TVs use multiple backlight sheet versions. Always confirm:

• Part number BN97-21027A
  

Common Issues This Part Fixes

• Dark or dead Mini-LED zones
• Uneven brightness or clouding
• TV powers on but screen remains dark
• Flickering or inconsistent backlight
• Picture visible only with external light

Product Specifications

• Part Type: Mini-LED Backlight Sheet Set
• Technology: Mini-LED with local dimming
• Manufacturer: Samsung
• Part Number: BN97-21027A
• Condition: Removed from cracked screen
• Installation Area: Backlight panel assembly

Installation Notes

• Professional installation strongly recommended
• Mini-LED sheets are delicate and easily damaged
• Handle with gloves to avoid pressure marks
• Replace the complete set to maintain uniform brightness
• Improper installation may damage the LCD panel

Why Replace the Full Backlight Sheet Set?

Mini-LED systems rely on matched backlight sheets for accurate brightness and local dimming. Replacing all sheets together prevents uneven lighting, color shifts, and premature failure, making this the correct and long-term repair solution.

If you need help confirming compatibility, contact us before placing your order.