I bought a lcd controller board for my old laptop screen recently, but when I plugged everything in the screen was just like this. I don't know what's the problem. : r/diyelectronics
HDMI+AV LCD Controller Board for 15.6Inch B156XW02 LP156WH2 1366X768 with Remote Control 40Pin Signal Keyboard Cable
Mini HDMI Display Controller Board Kit for EDP 30 Pin 1600*900 Laptop LCD Screen | eBay
VSDISPLAY 12.6" 12.6inch 1920x515 NV126B5M-N41 IPS Touchscreen and Type C HDMI LCD Controller Board: Amazon.de: Computer & Zubehör
V2 - Upgrading my old recycled 768 to new recycled 1080p external laptop screen - Directions | B4X Programming Forum
Für LP156WH3-TLS1/TLSA M.NT68676 Screen Controller Drive Board LVDS 40Pin WLED 15,6 Zoll 1366 x 768 HDMI + VGA + DVI Laptop LCD Panel Kit (LP156WH3 ): Amazon.de: Computer & Zubehör