My son threw a ball and hit the screen cracks all over can this be fixed with a new screen or is it junk now really bright light shows through all the crack marks

you have an internal crack. You cannot fix this, the only option is to replace the screen or buy a new set. In most cases, it will cost more to replace the screen vs. buying a new set.

I assume you meant the screen is now broken.
Some things to consider:

1. Replace the son with one who does not throw golf balls in the house. Ha ha! [jk]
2. Check to see if the warranty (usually online if you don't have the original paperwork) covers screen breakage, or ask the store where you bought the tv if there is anything they can do.
3. If the warranty is a no-go, contact the tv manufacturer and see why they may do... what the cost would be to repair etc. Some screens are covered in case they crack, but it is probably obvious it wasn't a manufacturer's defect if a golf ball hit it.
4. If those steps don't work out, check videos or info online to see if this is a job you or a techie could do - (in last case scenario).
5. If none of these check out, sadly, you might be left with a very large, expensive doorstop.
:-(
Good luck.

did the ball hit the screen and is there any cracks on the screen or the screen broke? what had happened.you can get the power back,it needs some repair

I guess, it is time for a new TV. LCD panel got cracked and it is not repairable.

No it cannot be repaired. sorry

I had one broken a few months ago. I got a couple quotes.. it was about $200 less then a brand new one. I'd just buy a new one.
For the new TV I'd pickup a screen protector for it. My son threw a toy at my TV the other day and I nearly had a heart attack from the flashbacks. Thank God I picked up one of these a few weeks earlier. It stopped it. LCD screens really break easily as you know. http://www.tv-armor.com
Mike

The LCD panel will have to be replaced. Contact a Philips service agent for cost.

The cost of a replacement screen will probably outweigh the cost of a replacement TV.

If you have household insurance, it should cover accidental damage.

it is cHEAPER to get a new tv A DISPLAY PLUS LABOR IS EXPENSIVE

Most likely is the LCD panel hit by something and damaged. It possible costs you more to fix it than to buy a new one.

I had one broken a few months ago. I got a couple quotes.. it was about $200 less then a brand new one. I'd just buy a new one.

For the new TV I'd pickup a screen protector for it. My son threw a toy at my TV the other day and I nearly had a heart attack from the flashbacks. Thank God I picked up one of these a few weeks earlier. It stopped it. http://www.tv-armor.com
Mike