Its that time when your old Notebook after repeated trouble, conks off and you discover that the Motherboard is fried and getting a new Motherboard is not the solution owing to the price.
I met with a similar fate last year my HP Pavilion DV6 Notebook (bought in 2011) died due to overheating of AMD processor. I then found out that rather than disposing off the Notebook for a cheap price you can re-use its functional parts, one among then was its HD LED screen. That's how it struck me to build a Smart TV out of the functional screen.
Method to build the TV -
1. You begin with first dismantling your Notebook and detaching the screen from the base (search on YoutTube to learn more on this for the specific model of your Notebook).
2. Now you need to remove the frame from the screen's bezel and carefully detach the LED screen. If you look at the back of the screen, you can find the screen's specific model number. In my case I had this screen with model number "AU Optronics B156XW02 V.2 HW4A Laptop LCD Screen 15.6 WXGA Glossy".
3. Now search "B156XW02 LED driver card" in Aliexpress. I had a seller who sold what I required. The kit consists of the LED Driver Board, 5 Key Keypad and LVDS cable (to connect to the screen). Just be sure to order the driver card specific to the screen model number, else your screen will not work and you may end up damaging your screen.
4. Once the LED Driver kit arrived, I detached the the old LVDS cable and connected the new LVDS cable with the LED screen and the LED driver board. I also attached the 5 Key Keypad with the LED driver board.
5. I then used the Monitor Stand from a decade old Samsung 740BN monitor, drilled holes on the LED screen bezel (without mounting the LED Screen).
6. I then mounted the LED screen on the bezel and used an old Cigar box to make a casing for the LED driver board. I then mounted the LED driver board casing and the 5 Key Keypad at the back of the screen using a Hot Glue Gun. 
The LED driver board has the following connections - Power Supply Port, HDMI Port, DVI Port, VGA Port, PC Audio IN and Audio OUT. The motherboard also has connectors for IR sensor and Port for Speakers (even the Notebook Speakers should work).
7. Now what I need is a 12V 4Amp regulated Power Supply (for me even a 12V 1Amp Power Supply from an old Wi-Fi Router seems to work), an EP Stereo Cable, a Chromecast, external Speakers which can be connected using EP Stereo Cable and a Micro USB 5V Power Supply to Power On the Chromecast.
Just connect the Chromecast to HDMI and the Micro USB Power Supply, connect the EP Stereo Cable from the Audio OUT Port to the external Speakers, power on the LED driver board.
I name my TV as "ChromeHP Smart TV".
If you have a similar story like mine, try this out if you haven't tried and do share your experience with me.
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