How I Can Use Rgb Cable For Lcd I Have A Vga Male To Male Cabel And That Works Fine From My Lap Top To Lcd Tv .so I Got A Vga To Rgb Cable For?

I have a vga male to male cabel and that works fine from my lap top to lcd tv .so i got a vga to rgb cable for? - how i can use rgb cable for lcd

TV old and my mother can not find jobs can you help?