A sigh. Who knows who uses it?
If the LCD screen is broken, you can only change the screen. If there is no warranty, you can replace an LCD screen for free. If it's over-insured, you'll have to throw this TV away. The cost of changing the screen is 65%-70% of the price of the TV set, so it is better to buy a new one.
Baidu Home Appliances Alliance will answer your questions.