Screen display dim

[Tyler_44]

I have a Samsung 48 inch smart 3D tv. The screen is going dim. Not to dim to where it's not visible, and the LEDs still light up. The screen is just rather dark. When I first turn it on it lights up just fine. Then after about 5 seconds it goes dim as if it's stuck in a dim mode. I've done all the trouble shooting and even did a factory reset but it still goes dim. I can see the screen just fine when it's super dark out but it's harder to make out dark images during the day. Can anyone help me with this? I've tested the power supply and that's not the problem and the leds aren't flashing showing anything is wrong elsewhere. And I can still change the brightness and everything. It just doesn't get as bright as when I first power it on.

 

[Tyler_44]

Still having issues with this.. Screen becomes bright when changing the picture mode then goes right back to dim.. Anyone please help!