At Last log I made was the 5050RGB LED which post serious problems on Temperature from reduction of voltage by using passive circuit in means of used of resistors.

I have made new one accommodate with HP LP2475W which is Backlit CCFL IPS Display.

BTW, Bulb life go as long as 7700hrs which tend to give yellowish white and less color purity.

RGB LED known to be the best of color display known to me. So I bought WS2812b RGB LED Strip for 20M.

This is how it get working perfectly, Color different was gone!!!!

BUT Heat issue still remain. 5V need very very huge current to drive. nearly ~1000 LEDs lit all RGB at portion. Controlled with Arduino Micro.

I cooled it with some Notebook CPU Fan. Fits in display's enclosure snuggled.