FLEXIBLE DISPLAY DEVICE AND METHOD FOR CHANGING DISPLAY AREA

• US 20100245392A1
• Filed: 06/11/2010
• Published: 09/30/2010
• Est. Priority Date: 06/28/2005
• Status: Active Grant

• Current Assignee: Pantech Corporation (Ideahub, Inc.)
• Original Assignee: Pantech Corporation (Ideahub, Inc.)
• Inventors: Chae, Ho Yeon, Ryu, Chang Soo
• Granted Patent: US 8,120,626 B2
• Time in Patent Office: Days
• US Class Current: 345/659
• CPC Class Codes: G06F 2203/04803 Split screen, i.e. subdividing the display area or the window area into separate subareas
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06T 3/40 Scaling of whole images or parts thereof, e.g. expanding or contracting
• CPC Class Codes: G06T 3/60 Rotation of whole images or parts thereof
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 2340/0464 Positioning
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 2340/145 related to small screens
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/34 for rolling or scrolling
• CPC Class Codes: G09G 5/373 for modifying the size of the graphic pattern
• CPC Class Codes: G09G 5/38 with means for controlling the display position

Abstract

A display device to change an image displayed in a display area when the display area is changed includes a memory, a location output unit and a screen display unit. The memory stores size information of a display area displayed on a screen and the image data of the displayed image. The location computing unit computes a start point of the changed display area when the display area is changed. The display unit decodes data corresponding to the size of the display area based on the computed new start point from the image data to display the decoded data in the display area. Since the start point is obtained with center point of the changed display area and its size information and then a display area to be displayed is determined based on the start point, a current search location is maintained even when the screen is swung.

Claims

1. A display device, comprising:

a memory to store an original multimedia data and size information of a display area;

a location computing unit to compute an initial start point of the display area, and to adjust a movement of the display area depending on a manipulation of user interface unit from the initial start point to calculate a start point of the moved display area when the display area is moved; and

a display unit to decode data corresponding to a size of the display area based on the start point of the moved display area from the original multimedia data and to display the decoded data,

wherein the location computing unit adjusts the start point variation from the initial start point before a display screen is swung to compute the start point of the moved display area when the display screen is swung.

2. The display device according to claim 1, wherein the start point variation is a difference between coordinate values before and after the display screen is swung based on the size of the display area.

3. The display device according to claim 1, wherein the location computing unit sets one of vertexes of the changed display area as the start point of the moved display area.

4. The display device according to claim 1, wherein the display unit displays a search window to show a location of a currently displayed area from the original multimedia data in a predetermined region of the display area.

5. 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.

6. The method according to claim 5, wherein the step of displaying the area comprises decoding image data of an area corresponding to a horizontal length of the display area in a X direction and a vertical length of the display area in a Y direction based on the second start point of the moved display area to display the decoded image data.

7. The method according to claim 5, wherein the start point variation is a difference between coordinate values before and after the display screen is swung based on the size of the display area.

8. The method according to claim 5, wherein the second start point corresponds to one of vertexes of the display area.

9. 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.

10. The display device according to claim 9, wherein the memory further comprises start point variation which is a difference between coordinate values of the start point before and after the display area is swung.

11. The display device according to claim 10, wherein the location computing unit adjusts the start point variation when the display area is swung.

12. The display device according to claim 9, wherein the location computing unit sets one of vertexes of the display area as the start point.

13. The display device according to claim 9, wherein the display unit displays a search window for showing a location of a currently displayed area from the original multimedia data in a predetermined region of the display area.

14. 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.

15. The method according to claim 14, wherein the start point corresponds to one of vertexes of the display area.

16. 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.

17. The method according to claim 16, wherein the second area has a start point based on one of vertexes of the first area.