As LCD TV screens grow bigger, and brighter, they require more power to operate, increasing the need for more robust and reliable circuit protection techniques.

A variety of circuit protection devices can be used to help protect the LCD screen from damage caused by excessive current or voltage transients. Overcurrent protection may take the form of a fuse or a resettable PPTC (polymeric positive temperature coefficient) device. Deciding whether to specify a PPTC device or a single-use fuse depends on the LCD design, the types of threats the device may be exposed to, and the relevant safety requirements.