A backlight unit according to an exemplary embodiment of the present disclosure includes a light emitting diode with a substrate, a light emitting unit disposed on the substrate, and a mold frame disposed on the substrate that surrounds the light emitting unit, and a light guide adjacent to the light emitting diode. Such apparatus includes RFID circuitry on a first substrate, and sensor circuitry on a second substrate. The modulation of the basivertebral nerves may facilitate treatment of chronic back pain. Upon input or determination of the substrate being registered, the system adjusts the drive profile of the drive roll by the compensation factor.