MULTI-CONTROLLER FOR HEAD UP DISPLAY

A multi-controller for a HUD system given in the present invention includes a HUD device (200) which displays travel information on the front window of a vehicle which is parked at an angle greater than 70 degree; a display unit which delivers the travel information in a graph, number, or text form to an LCD panel in the HUD system; and a control module which converts the DC power supplied by the vehicle into a constant current or a constant voltage, delivers the output to the HUD device, and adjusts the brightness of an image displayed on the HUD device depending on the illumination intensity sensed by a light sensor. The present invention devises a stable power supply scheme required by a HUD system for a vehicle, an over-current protection function, various external interface functions, and a control module for light sensing and control functions. The present invention provides a multi-controller for a HUD system which can clearly and stably display an image at a certain point on a front window and can be operated through various external interfaces,by applying the control module in the HUD system. [Reference numerals] (270) Display unit;(310) Power control unit;(340) Light sensor control unit;(AA) HUD device main controller;(BB) CAN module;(CC) Cds sensor