Display unit and processing system each having a wiring board in substantially the same plane as a liquid crystal module

Disclosed are a display unit and a data processing system equipped therewith. The display unit includes a liquid crystal module, a rear panel covering the back surface of the liquid crystal module, a front periphery covering member covering a peripheral part of the front surface of the liquid crystal module, and a wiring board for driving the liquid crystal module. The liquid crystal module includes a liquid crystal cell, a light guide panel disposed behind the back surface of the liquid crystal cell, a reflecting panel disposed behind the back surface of the light guide panel, plural LEDs disposed opposite to one end surface of the light guide panel, and a holding frame provided with a spacing part, covering a peripheral part of the back surface of the reflecting panel and holding the liquid crystal cell, the light guide panel, the reflecting panel and the LEDs. The wiring board and the liquid crystal module are contained substantially in a plane in a space between the rear panel and the front periphery covering member.