This is a modification to convert an LED LCD TV to Full Array Local Dimming Backlight.
Parts list:
1W COB LED (98pcs)
LDR (98pcs)
MOSFET SI2300 or SI2306 (98pcs)
Resistor 4.7K (98pcs)
Resistor 1ohm (98pcs)
Circuit:
Repeat the same circuit 98 times
You can order the PCB from PCBWay.com here:
https://www.pcbway.com/project/shareproject/Full_Array_Local_Dimming_TV_Backlight_6013e5cc.html
3D Printed Parts:
https://www.tinkercad.com/things/9z6gjJJRLsc-local-dimming-tv-backlight-part-12
https://www.tinkercad.com/things/eBGjOFxDnML-local-dimming-tc-backlight-part-22
Video: