Like previous iterations, this iMac display gets its own full set of control hardware:

Texas Instruments BUF16821 Programmable Gamma-Voltage Generator

Richtek RT8250 Synchronous Step-Down Converter

ST Microelectronics 404RP K516

Winbond W25X20CL 2 Mb Serial NOR Flash Memory

Parade DP627HDE DisplayPort LCD timing controller

Texas Instruments TPS54231 Step-Down Converter

Texas Instruments TPS65161 Bias Power Supply for TFT LCD Panels