A mobile terminal (100) including a wireless communication unit (110) configured to wirelessly communicate using at least two different communication systems; a display unit (151) including a backlight configured to apply light to a display screen of the d...

A DC-DC converter and an organic light emitting display device using the same. Here, a DC-DC converter (500) is provided with a voltage sensor (400) for sensing a battery voltage outputted from a battery (700). A regulator (510) receives the battery voltag...

Transistors tend to have variations in their characteristics according to the precision of patterning or the non-uniformity in thickness of a semiconductor film or a gate insulating film which are laminated in the manufacturing process. In the case of poly...