METHOD OF CONTROLLING TOUCH PANEL DISPLAY DEVICE AND TOUCH PANEL DISPLAY DEVICE USING THE SAME

• US 20100002016A1
• Filed: 01/18/2007
• Published: 01/07/2010
• Est. Priority Date: 07/13/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Tae Hoon
• Granted Patent: US 8,754,911 B2
• Time in Patent Office: Days
• US Class Current: 345/660
• 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 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A method of controlling a touch panel display device, and a touch panel display device using the same, facilitate a user selection (touching) of a specific icon to improve the reliability of registering a touch event for the specific icon, thereby enabling smaller icons to be used with greater accuracy. The touch panel display device includes a touch panel exhibiting a plurality of coordinates corresponding to a screen area of the touch panel display device, the screen area including a zoom icon area; a touch panel controller for recognizing coordinates of a touch event, for storing the recognized coordinates in an internally provided memory, and for outputting a coordinates signal corresponding to the touch event by converting a value generated by the touch event into a corresponding coordinates value; a microprocessor for determining whether the coordinates value output from the touch panel controller corresponds to the zoom icon area of the screen area; a touch driver for outputting a zoom function signal corresponding to the coordinates value output from the touch panel controller; and a display for displaying a magnified icon area corresponding to the zoom icon area, if the microprocessor determines that the coordinates value output from the touch panel controller corresponds to the zoom icon area of the screen area. A method of controlling the above touch panel display device includes steps of displaying a zoom icon area on at least part of a screen made up of a plurality of coordinates; recognizing coordinates of a touch event, to determine whether the touch event corresponds to the displayed zoom icon area; and displaying, if it is determined that the touch event corresponds to the displayed zoom icon area, a magnified icon area corresponding to the zoom icon area.

Claims

1. A method of controlling a touch panel display device, the method comprising:

displaying a zoom icon area on at least part of a screen made up of a plurality of coordinates;

recognizing coordinates of a touch event, to determine whether the touch event corresponds to the displayed zoom icon area; and

displaying, if it is determined that the touch event corresponds to the displayed zoom icon area, a magnified icon area corresponding to the zoom icon area.

2. The method of claim 1, wherein the magnified icon area is displayed based on the recognized coordinates of the touch event.

3. The method of claim 2, wherein the displayed magnified icon area covers a greater area than the at least part of the screen and wherein the recognized coordinates of the touch event defines a resolution of the displayed magnified icon area.

4. The method of claim 2, wherein the displayed magnified icon area covers a greater area than the at least part of the screen and wherein the recognized coordinates of the touch event defines a size of the displayed magnified icon area.

5. The method of claim 1, further comprising:

scaling a portion of the zoom icon area based on the recognized coordinates of the touch event.

6. The method of claim 1, wherein the touch event includes one point entered by a user manipulating a touch panel of the touch panel display device.

7. The method of claim 6, wherein the magnified icon area is displayed by centering on the recognized coordinates of the touched event and magnifying the zoom icon area by a prescribed value.

8. The method of claim 1, wherein the touch event includes two points entered by a user manipulating a touch panel of the touch panel display device.

9. The method of claim 8, wherein the magnified icon area is displayed by scaling the zoom icon area based on a distance between the recognized coordinates of the touch event.

10. The method of claim 1, further comprising:

(a) displaying on at least part of the magnified icon area a secondary zoom icon area made up of a plurality of magnified coordinates;

(b) recognizing coordinates of a touch event for additional zooming, to determine whether the touch event for additional zooming corresponds to the displayed secondary zoom icon area; and

(c) displaying, if it is determined that the touch event for additional zooming corresponds to the displayed secondary zoom icon area, a further magnified icon area corresponding to the secondary zoom icon area.

11. The method of claim 10, further comprising:

repeating said steps (a) through (c) according to a desired level of magnification.

12. A method of controlling a touch panel display device, the method comprising:

displaying a zoom icon area on at least part of a screen made up of a plurality of coordinates;

recognizing coordinates of a touch event to determine whether the touch event corresponds to the displayed zoom icon area, the touch event consisting of a predetermined number of touches occurring within the zoom icon area, the touches being executed by a user manipulating a touch panel of the touch panel display device; and

displaying, if it is determined that the touch event corresponds to the displayed zoom icon area, a magnified icon area corresponding to the zoom icon area,

wherein the magnified icon area is displayed according to a count of the touches executed by the user.

13. The method of claim 12, wherein the magnified icon area is displayed immediately upon input of anticipated entry points to the touch panel.

14. The method of claim 12, wherein, if the count of the touches is one, the magnified icon area is displayed by centering on the recognized coordinates of the touched event and magnifying the zoom icon area by a prescribed value.

15. The method of claim 12, wherein, if the count of the touches is two, the magnified icon area is displayed immediately after the second touch, by scaling the zoom icon area based on a distance between the recognized coordinates of the touch event.

16. The method of claim 12, wherein said coordinates recognizing is achieved by waiting a predetermined time from the performance of the first touch and wherein the magnified icon area is displayed after the predetermined time if there is no second touch.

17. The method of claim 16, wherein performance of a second touch is locked out after the predetermined time.

18. A touch panel display device, comprising:

a touch panel exhibiting a plurality of coordinates corresponding to a screen area of the touch panel display device, the screen area including a zoom icon area;

a touch panel controller for recognizing coordinates of a touch event, for storing the recognized coordinates in an internally provided memory, and for outputting a coordinates signal corresponding to the touch event by converting a value generated by the touch event into a corresponding coordinates value;

a microprocessor for determining whether the coordinates value output from said touch panel controller corresponds to the zoom icon area of the screen area;

a touch driver for outputting a zoom function signal corresponding to the coordinates value output from said touch panel controller; and

a display for displaying a magnified icon area corresponding to the zoom icon area, if said microprocessor determines that the coordinates value output from said touch panel controller corresponds to the zoom icon area of the screen area.

19. The touch panel display device of claim 18, further comprising:

a scaler for performing a scaling operation in response to the zoom function signal output by said touch driver, the scaling operation performed with respect to a portion of the zoom icon area using the recognized coordinates of the touch event

wherein the magnified icon area is displayed according to the scaling operation.

20. The touch panel display device of claim 18, further comprising:

memory, provided to said microprocessor, for storing software corresponding to said touch driver, for storing the plurality of coordinates corresponding to the screen area of the touch panel display device, and for storing in response to the zoom function signal a set of magnified coordinates values corresponding to the coordinates of said touch panel,

wherein the zoom function signal output by said touch driver uses the stored coordinates of said touch panel to generate the magnified coordinates values.