The LM270QQ1(SD)(B1) is LG Display’s 27-inch 5K Retina panel used in select Apple iMac builds.
It delivers crisp 5120×2880 resolution at ~218 ppi, wide viewing angles and high native contrast,
with a white-LED backlight and eDP interface.
Key Features
- 5K Retina 5120×2880 (QQHD), 16:9, ~218 ppi.
- AH-IPS / Oxide TFT technology; WLED backlight.
- 1200:1 (typ.) contrast; 89/89/89/89° viewing (typ.).
- Compatible with standard 5K eDP driver boards (sold separately).
Compatibility
- Apple iMac 27″ A1419 — Late 2015 (EMC 2834) replacements that specify LM270QQ1(SD)(B1) / SDB1.
Notes: Later iMac revisions often use LM270QQ1(SD)(C1) (2017). Match your original panel
by exact model code before ordering.
What’s Included
- 1 × LM270QQ1(SD)(B1) bare LCD panel (no glass, no housing, no cables).
Installation
- For iMac: follow OEM procedures (adhesive/seal kit and proper tools required). Handle eDP connector with care.








