flex DIY rgb pixel led matrix/panel for costume show

This  flex DIY rgb pixel led matrix is designed my our enginer Mr pual ,who focus on led design since 2010,, which is used for a important costume show in Italy .the flex led matrix made up by two led panels , ( type A and type ,which is welded with Flexibleinsulated lead wires) which is designed to save FPCBdeveloping cost ,key specification as follow  1)Flexible digital LED panel 2)LED: 84pcs WS2812B-Mini-V2 3)size: 11.6cm*27.4cm( W*L) 4)Electric: Dc5V, 10W every panel 42LEDs (max) 5)Panel Type A&B, welded with Flexible insulated [...]