There are different types of screens for Televisions some are PLASMA,LCD, LED
LCD crystals do not produce their own light, so an external light source like a florescent bulb is needed to create an image.
LED is the most popular format of TV on the market now due to its cost, size and versatility, although it is not the highest quality image available.
Plasma is oftten said to be superior to LCD & LED in terms of contrast and colour accuracy.
When there is a crack on the inside of the screen it is only seeable when the Television is on, this is why it is vitally important to always get a warranty for the television when it is bought. Taking care of your television will let it last longer and it will be in better condition for Optimum viewing. Some ideas to maintain your TV are keeping the TV away from humid parts of the house away from pets and humind parts of the home. It is also important top not let dust collect on the back or the screen . It is also important to choose a place in the house that lets you decide whether there is direct sunlight or not. This will prtect the screen from any damage