What is the likely cause of the left half of a led tv being dark compared to the right half? The pictures is there but it seems the backlight has gone out.

That could be a number of things. Possible ribbon cable loose or sweep or memory board faulty. Also I would not rule out a break on the screen. Good luck

No, it's not the LED strips, You have a T-com board problem, so replace the T-com board.

T'Con board fault. Check and replace it. If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/

sir,
even if you changed the back light inverter the fault remain as same, it seems to be the back light LED is damaged carefully remove the outer frame of the panel then dis connect the LCD then remove the frame of the defuser screen , take out plug your TV, check the LEDs

Hi Stephen,
This is a case of backlight failure. Some of the LEDs in the backlight array have failed and causing this trouble. To repair it the LCD panel has to be opened and I am sorry You can not do anything about it yourself, because it is a highly delicate job and needs a fair degree of expertise. You will have to handover the job to some good local TV Tech.
Good Luck.

The following picture symptoms indicate a bad LCD panel, and NOT a bad back light or board:
-One side of the picture is darker than the other
-Picture has horizontal line(s)
-A dark, cloudy spot spreads across the picture

If it is an LED LCD TV, the backlight inverter board should be troubleshooted. Contact any service technician.

It sounds to be a backlight problem. Might be a fault to its inverter board, that lights up one half part LEDs. Contact any service technician. If you're sound in electronics, and wish to get more details to such problems, http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by its left side bar, or view it in Timeslide option.

I didn't look up the model to see if its a LCD or LED, if its an LED it sounds like you have some lamps going out, try turning down the backlight settings and see if that helps