This part is a kind of semiconductor called CXA3834AM.

Function of this product has LED Backlight Driver IC.

Manufacturers : Sony

Image and pinout :

Some of the text within the PDF file :

LED Backlight Driver IC CXA3834AM Description The CXA3834AM is an LED driver IC with boost DC-DC converter. It enables luminance control using the peak current and PWM signal, and blinking control using the BLINK signal. This IC has an optimum configuration for realizing a simple and compact power supply circuit for an LCD TV equipped with a LED backlight. (Applications: Power supply circuit, etc.) Features  Shared              UVLO function Overheat protection function Error detection output function (xBL_ERR) Detection timer latch function when abnormalities occur On-chip LED lighting FET gate driver Luminance adjustment function using peak current control Luminance adjustment function using the PWM signal Blinking control using the BLINK sig [ ... ]

CXA3834AM PDF Datasheet Download