Flexible display device and method for changing display area

A method for displaying an image on a display area, comprising:

• computing a first start point of the display area from an original multimedia data when the image is displayed on a screen of a display device;
• computing a second start point of a moved display area depending on a manipulation of user interface unit;
• and
• displaying an area corresponding to a size of the moved display area based on the second start point of the moved display area from the original multimedia data,
• wherein computing the second start point further comprises adjusting a movement of the display area from the first start point of the display area before the display screen is swung, and to adjust a start point variation from the first start point of the display area to compute the second start point of the moved display area when the display screen is swung.

A display device, comprising:

• a memory to store an original multimedia data and size information of a display area displayed on a display screen when a part from the original multimedia data is enlarged;
• a user interface unit to search the part by enlargement and movement;
• a location computing unit to set a start point of the display area from the original multimedia data;
• a display unit to decode data based on the start point corresponding to the size of the display area obtained by exchanging a horizontal length value with a vertical length value of the display area when the display screen is swung.

A method for displaying an image on a display area, comprising:

• storing an original multimedia data;
• storing size information of the display area displayed on a screen of a display device when a user enlarges a desired part from the original multimedia data by manipulating user interface unit;
• setting a start point of the display area from the original multimedia data;
• and
• displaying an area based on the start point corresponding to a size obtained by exchanging a horizontal length value with a vertical length value of the display area when a display screen is swung.

A method for displaying enlarged multimedia data on a display screen, comprising:

• storing an original multimedia data having a width X and a length Y;
• selecting a first area of the original multimedia data, the first area having a width dx and a length dy, wherein dx is less than X and dy is less than Y;
• displaying the first area corresponding to a size of the display screen of the display device;
• selecting a second area of the original multimedia data, the second area having a width dy and a length dx when the display screen is swung, wherein dy is less than X and dx is less than Y;
• displaying the second area corresponding to a size of the display screen of the display device when the display screen is swung.