Method for changing display range and electronic device thereof

• US 9,851,898 B2
• Filed: 03/13/2017
• Issued: 12/26/2017
• Est. Priority Date: 08/21/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lim, Yong-Jin, Kim, Byung-Hwan, Kim, Youn-Soo, Kim, Hyung-Jin, Noh, Jeong-Hwan, Park, In-Su, Cho, Jung-Il
• Primary Examiner(s): CERULLO, LILIANA P
• Application Number:
  US15/457,904
• Publication Number:
  US 20170185290A1
• Time in Patent Office: 288 Days
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• 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 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

Provided are methods for changing a display range in an electronic device having a touchscreen. The method for changing a display range in an electronic device includes: detecting a plurality of touches; determining a plurality of regions in consideration of a plurality of touch points; and changing a display range of at least one region of the plurality of regions in consideration of change in a distance between the plurality of touch points.

Claims

1. An electronic device comprising:

a touch screen;

a processor;

a memory; and

an executable program stored in the memory that, when executed by the processor, causes the processor to;

divide an image displayed on the touch screen into a plurality of regions as a function of a touch input on a first point of the touch screen, wherein the plurality of regions comprise a first region and a second region being scrolled independently of each other based on a drag input within the first region and a drag input within the second region;

detect a first touch input on a second point of the first region and a second touch input on a third point of the second region;

detect that the second touch input moves from the third point to a fourth point of the second region while the first touch input is maintained; and

display a third region of another image which is behind the second region of the image.

2. The electronic device of claim 1, wherein the executable program causes the processor to divide the image by:

determining the first region and the second region on the image based on a reference line extended from the first point.

3. The electronic device of claim 2, wherein the executable program causes the processor to:

detect that the touch input moves from the first point to a fifth point in the first region;

expand the second region on the touch screen by moving the reference line onto the fifth point; and

display an outer region which had not been displayed on the touch screen to the expanded second region.

4. The electronic device of claim 3, wherein the executable program causes the processor to expand the second region by:

overlaying the second region on the first region.

5. The electronic device of claim 3, wherein the executable program causes the processor to expand the second region by:

expanding the second region according to a direction from the first point to the fifth point.

6. The electronic device of claim 3, wherein the executable program causes the processor to expand the second region by:

expanding the second region by a distance between the first point and the fifth point on the touch screen.

7. The electronic device of claim 6, wherein a range of the outer region is determined corresponding to the distance.

8. The electronic device of claim 3, wherein the executable program causes the processor to:

detect that the touch input moves from the fifth point to a sixth point in the second region; and

reduce the expanded second region by moving the reference line onto the sixth point.

9. The electronic device of claim 2, wherein the executable program causes the processor to determine the first region and the second region by:

detect that the touch input is maintained on the first point for a predetermined time; and

determine the first region and the second region based on the reference line.

17. The method of claim 2, wherein the determining of the first region and the second region comprises:

detecting that the touch input is maintained on the first point for a predetermined time; and

determining the first region and the second region based on the reference line.

10. A method of an electronic device, the method comprising:

detecting a touch input on a first point of a touch screen displaying an image;

dividing the displayed image on the touch screen into a plurality of regions as a function of a touch input location of the touch input, wherein the plurality of regions comprise a first region and a second region being scrolled independently of each other based on a drag input within the first region and a drag input within the second region;

detecting a first touch input on a second point of the first region and a second touch input on a third point of the second region;

detecting that the second touch input moves from the third point to a fourth point of the second region while the first touch input is maintained; and

displaying a third region of another image which is behind the second region of the image.

11. The method of claim 10, wherein the dividing of the displayed image comprises:

determining the first region and the second region on the image based on a reference line extended from the first point.

12. The method of claim 11, further comprising:

detecting that the touch input moves from the first point to a fifth point in the first region;

expanding the second region on the touch screen by moving the reference line onto the fifth point; and

displaying an outer region which had not been displayed on the touch screen to the expanded second region.

13. The method of claim 12, wherein the expanding of the second region comprises one of:

overlaying the second region on the first region;

or

expanding the second region according to a direction from the first point to the fifth point.

14. The method of claim 12, wherein the expanding of the second region comprises:

expanding the second region by a distance between the first point and the fifth point on the touch screen.

15. The method of claim 14, wherein a range of the outer region is determined corresponding to the distance.

16. The method of claim 12, further comprising:

detecting that the touch input moves from the fifth point to a sixth point in the second region; and

reducing the expanded second region by moving the reference line onto the sixth point.

18. A non-transitory computer readable storage media storing at least one instruction, the at least one instruction, when executed on a device, causing at least one processor to:

detect a touch input on a first point of a touch screen displaying an image;

divide the displayed image on the touch screen into a plurality of regions as a function of a touch input location of the touch input, wherein the plurality of regions comprise a first region and a second region being scrolled independently of each other based on a drag input within the first region and a drag input within the second region;

detect a first touch input on a second point of the first region and a second touch input on a third point of the second region;

detect that the second touch input moves from the third point to a fourth point of the second region while the first touch input is maintained; and

display a third region of another image which is behind the second region of the image.