LG WOLED & UltraGear Diagnostic
Test LG OLED Screen
Inspect your LG OLED TV (C-Series, G-Series) or UltraGear OLED monitor for WRGB dead pixels, near-black 5% gray banding, and panel uniformity.
LG WOLED Subpixel & Uniformity Guidelines
LG WOLED displays feature a White, Red, Green, and Blue (WRGB) subpixel structure. New panels frequently exhibit temporary vertical banding on 5% dark gray screens that completely smooths out after running the TV for 4–20 hours and allowing the automatic pixel cleaning cycle to run on standby.