Osd control system and osd control method for controlling display panel properties according to sensed touch movements

An on screen display (OSD) control system, comprising:

• a display device, comprising:
• a panel for displaying image data;
• a touch pad disposed around the panel and comprising a plurality of touchable keys for sensing a plurality of touch movements thereon and transferring a plurality of interrupt signals upon sensing the touch movements;
• a display controller receiving the image data and transmitting the image data to the panel, receiving a plurality of key status signals, and controlling a plurality of display properties of the panel according to the key status signals;
• and
• a touch sensor controller coupled to the display controller and the touch pad, receiving the interrupt signals, recognizing types of the touch movements and corresponding positions of the touch movements in response to the interrupt signals, and generating the key status signals according to the type and the positions of the touch movements.