Flat display device

A flat display device comprising:

• a display unit having a screen for displaying images;
• a pedestal part for supporting the display unit;
• a joint part for connecting the pedestal part with the display unit;
• a rotation drive mechanism provided to the joint part for rotating the display unit in the horizontal direction;
• a motor for giving a rotation force to the rotation drive mechanism;
• an infrared reception part for receiving an infrared signal instructing a drive of the rotation drive mechanism from a remote controller that instructs an operation;
• a signal converting portion for converting the infrared signal received by the infrared reception part into a control signal;
• a main control portion for analyzing the control signal sent from the signal converting portion so as to confirm contents of the instruction;
• a motor driver for receiving a signal from the main control portion and for supplying an operating voltage to the motor so as to drive the motor;
• and
• an operating voltage control portion for receiving a signal from the main control portion and for generating a voltage switching signal for changing the operating voltage, wherein
• the operating voltage control portion increases the operating voltage gradually by generating the voltage switching signal when the main control portion recognizes that the driving of the rotation drive mechanism should be started based on the control signal, while it decreases the operating voltage gradually by generating the voltage switching signal when the main control portion recognizes that the driving of the rotation drive mechanism should be stopped based on the control signal.