Quanto mais fácil você quiser, mais caro será.
Vou citar uma pilha de coisas aqui.
The first thing to note is that VGA is an analogue display technology. Secondly, laptop LCD's are 100% digital. There is no correlation between VGA and LCD they are two totally different beasts and LCD's will only accept a correct digital input.
The standard for this input for most LCD's is presently - Low voltage differential signaling (LVDS). In fact that thin "paper ribbon cable" on the back of your LCD is referred to as a LVDS cable. To read up on LVDS go here LVDS on Wikipedia.
The other cable going into the back of your old laptop LCD is the backlight power. The makeup of this cable varies between model but the norm is roughly that this cable is fed from an LCD inverter. In other words the LCD backlight normally takes power in the form of AC rather than DC and it normally needs lots of it. Input power to the inverter is normally in the range of 5v - 12v. What you need to do is find the (EXACT) model number of your LCD on the back of it then go searching Google for specifications. Once you have that you can go to Digitalview.com as they sell a VGA input board hopefully suitable for your LCD screen. As far as I can tell Digital View doesn't sell direct so you will need to find a local distributor willing to order the board in.
Of course if you are going to go to the trouble of getting a LCD controller and power supply etc. it would probably be cheaper to buy a used external LCD monitor on Ebay (although not as cool).
Então ... você precisa encontrar o conversor VGA para Digital correto para sua tela, e você precisa encontrar uma fonte de alimentação adequada para seu inversor de tela (assim você pode iluminar a tela), e você precisará ter uma mão firme e um bom ferro de solda ... e alguma renda disponível.