KR20100120343A - Touch screen control method, touch screen apparatus and portable electronic device - Google Patents

Abstract

PURPOSE: A touch screen control method, a touch screen device, and a portable electronic device are provided to perform the movement, enlargement, and rotation of an image object by a single touch. CONSTITUTION: A control unit acts in a center point varying mode(S210). If the touch location of a touch screen is maintained virtually over a predetermined period, the control unit enters a center point fixing mode(S220,S230). The control unit detects a fixed center point and a user touch position. The control unit performs at least one or more among enlargement, reduction or rotation of an image object according to the distance of the user touch location and angle change.

Description

Touch screen control method, touch screen apparatus and portable electronic device

The present invention relates to a touch screen control method, a touch screen device and a portable small electronic device.

Recently, a touch screen is widely used as a user interface of various electronic devices. The touch screen has the advantage that it can provide a user-friendly and deformable interface. In order to better utilize the advantages of the touch screen, the user should be able to easily move, enlarge, reduce and rotate the image objects displayed on the touch screen. As a related art, there is a multi-touch method disclosed in US Publication No. 2008/0122796. However, the multi-touch method has the inconvenience of using two fingers. This inconvenience is more serious when only one hand is needed to hold and operate a portable small electronic device (eg, a mobile phone, a digital camera).

In one implementation, a touch screen control method is provided. According to one or more exemplary embodiments, a method for controlling a touch screen includes fixing a center point of an image object on which at least one of enlargement, reduction, and rotation of an image object is performed; And at least one of enlargement, reduction, and rotation of an image object according to a change in distance and angle between the fixed center point caused by the movement of the touch position of the user input means and the touch position of the user input means. And controlling the center point fixation may be performed simultaneously on one or more image objects.

In one embodiment of the present invention, when the user input means touches substantially the same position for a predetermined period or more, the fixing of the center point is performed, and the center point of the image object may be set by the user. In another embodiment of the present invention, when the touch pressure of the user input means exceeds a predetermined pressure, or when the user input means touches a specific region, the fixing of the center point may be performed. Furthermore, the center point fixing step may be performed when the moving speed of the user input means is less than or equal to a preset speed.

In an embodiment of the present invention, the image object is enlarged or reduced in proportion to the distance between the user input means and the center point, or the angle between the first touch position and the second touch position of the user input means around the center point. In response to the image object may be rotated. In addition, the movement of the touch position may be a movement by dragging. According to an embodiment of the present invention, when the touch of the user input means is initiated within a predetermined period after the touch by the user input means is terminated, the center point of the image object is kept fixed and is connected to the user input means. After the touch is terminated, when the touch of the user input means is initiated after a predetermined period, the center point of the image object does not remain fixed. In another embodiment of the present invention, the marker is generated at a point symmetrical position with respect to the touch position of the user input means based on the center point.

In order to solve the above problems, the present invention, the touch sensor unit for detecting the touch position of the user input means; When the touch of the user input means satisfies a predetermined condition, the center point of the image object is fixed, and according to a change in distance and angle between the center point generated by the movement of the user input means and the touch position of the user input means. A controller which performs at least one command of enlarging, reducing or rotating the image object; And a display unit configured to display the image object by the controller. The center point fixing is performed simultaneously with respect to one or more image objects, and the center point fixing condition of the image object is that when the user input means touches substantially the same position for a predetermined period or more, the center point fixing condition of the image object is the user. It may be the case that the touch pressure of the input means exceeds a predetermined pressure. In addition, the image object is enlarged or reduced in proportion to the distance between the user input means and the center point, or the image corresponds to an angle between the first touch position and the second touch position of the user input means around the center point. The object rotates.

The present invention provides a portable electronic device and a mobile phone including the touch screen device to solve the above problems.

The touch screen control method, the touch screen device, and the portable small electronic device according to the present invention can perform not only the movement of the image object, but also the enlargement, reduction, and rotation in a single touch manner (for example, using a single finger). Has the advantage that In particular, in the case of a portable small electronic device according to the present invention, it is possible to move, enlarge, reduce and rotate an image object using only the thumb of a hand holding the portable small electronic device.

In addition, since the touch screen control method, the touch screen device, and the portable small electronic device according to the present invention operate in a single touch method, the touch screen area covered by the finger (s) is reduced compared to the prior art using the multi-touch method. Has the advantage.

In addition, in the case of the multi-touch method, hardware (for example, a multi-touch screen panel) supporting the multi-touch method is often required, but a touch screen control method, a touch screen device, and a portable electronic device according to the present invention are commonly used. Even when using hardware (for example, a touch screen), the software has an advantage of enabling similar effects to multi-touch. Therefore, the effect of cost reduction can occur.

In addition, in the case of a plurality of image objects, when the center point fixing mode is applied to the plurality of image objects at the same time, the user can turn over or rotate the plurality of image objects in sequence, thereby enabling more user-friendly interaction.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the drawings. The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. In the drawings, the width, length, thickness, etc. of the components may be exaggerated for convenience. Like numbers refer to like elements throughout.

1 is a diagram illustrating a touch screen device 100. Referring to FIG. 1, the touch screen device 100 includes a touch screen 110 and a controller 140. An example of the touch screen 110 may be a resistive, capacitive, surface acoustic wave (SAW), or infrared (IR) touch screen. The touch screen 110 includes a display unit 130 and a touch sensor 120 mounted on the display unit 130.

The touch sensor 120 detects a touch position. The touch position refers to a position where a user input means (not shown) such as a finger, a hand, or an object touches (touches) the touch screen 110.

The display unit 130 displays a cover and an image object. The display unit 130 is controlled by the controller 140. The display unit 130 may be, for example, a liquid crystal display (LCD) or an organic light emitting display (OLED). An image object means a unit in which image processing (eg, displacement and deformation of an image) can be performed. The image object may be, for example, a desktop, an icon or a window for an application (eg, Word, Excel, internet explorer, etc.). The image object may be displayed on an entire area or a partial area of the touch screen 110 by way of example.

The controller 140 fixes the center point of the image object in which at least one command of zooming in, zooming out, or rotating is performed according to the touch event of the user input means. In this case, the center point fixation means that the center point is fixed to a specific coordinate on the display. In contrast to this, there is a center point variable in which the center point coordinates change according to a user's touch movement.

 The center point of the image object is a coordinate reference for providing a change in distance according to the movement of the user input means in the case of the enlargement or reduction of the image object, and in the case of rotation, the center point of the angle change. Therefore, the center point used herein does not mean a point corresponding to the center of the screen or image object, but is an arbitrary point fixed or changed by the user, and the center of rotation, zoom-in, or zoom-out is not. Say a point to be. That is, the center point may be not only the center of the screen or the image object, but also an arbitrary point inside or outside the image object to which the user wants to rotate, zoom in, zoom out, and the like. Can be set. For example, when the user continuously touches a specific point on the screen for more than a predetermined time, the specific point may be set as a center point such as rotation, reduction, or enlargement, and in this case, the user may again set the center point. When dragging to perform the rotation, reduction, or enlargement within another predetermined time, the image object is rotated, reduced, and enlarged. If the image object is dragged after exceeding another predetermined time, the image object is a center point. The fixed mode is released and moved. However, this is only one example, and the center point can be set by various methods (eg, double touch, touch pressure, touch area, etc.), all of which are within the scope of the present invention.

The controller 140 may perform at least one command of enlarging, reducing, and rotating an image object according to a movement of a user touch position. For example, when the touch position of the user input means moves in the direction of the fixed center point, and the distance is reduced, the reduction of the image object is determined. On the contrary, the movement of the touch input of the user input means is determined when the distance is increased from the center point. In addition, when a predetermined angle occurs according to the movement of the user's touch position with respect to the center point, the rotation of the image object is determined according to the angle. The movement of the touch position may be a movement by dragging. Here, drag means moving the user input means while touching the touch screen 110.

For example, when the touch of the user input means is a predetermined event (condition), the controller 140 performs the center point fixing mode of the image object. That is, when the preset condition is not satisfied, the center of the image object is not fixed, and as the dragging of the user input means moves the image object such as scrolling, panning, or moving the entire screen, etc. Command mode is maintained. For example, when it is determined that the user touch position remains substantially the same for a predetermined period or more under the above conditions, the touch pressure of the user input means exceeds a predetermined pressure. Furthermore, when moving the image object slowly while maintaining the touch state of the finger, which is a user input means, the center point of the image object may be fixed by the controller 140. As another condition, when the user input means touches a specific area such as a boundary of the image object, the center point of the image object may be fixed. As such, as long as the touch event is generated in a manner different from the conventional touch to fix the center point of the image object, it is all within the scope of the present invention.

In addition, the reason for using the term "substantially" is not to exclude a case where it is detected that the touch position is slightly changed unlike the intention of the user. Therefore, the method in which the controller 140 enters the center point fixed mode after it is determined that the touch position remains the same for more than a predetermined period is included in the scope of the present example. In addition, the method for the controller 140 to enter the center point fixing mode of the image object after determining that the touch position is within a predetermined range from the initial position of the touch position for a predetermined period or more is included in the scope of the present example. The touch position that remains substantially the same is not limited to the boundary region of the image object. Therefore, even after the touch position remains substantially the same in an area other than the boundary of the image object (eg, inside the image object), the controller 140 enters the center point fixed mode. In the present example, it is determined whether to enter the center point fixed mode according to the touch time, but it is also possible to enter the center point fixed mode according to a condition other than the touch time (for example, touching twice), as described above.

For example, after the controller 140 enters the center point fixing mode, when the controller 140 recognizes the end of the touch on the touch screen 110, the controller 140 may end the center point fixing mode and enter the center point variable mode. As another example, after the controller 140 enters the center point fixed mode, if the time interval between the termination and resumption of the touch on the touch screen 110 is greater than a predetermined reference time, the controller 140 enters the center point variable mode. If the time interval is smaller than the predetermined reference time, the controller 140 may continuously maintain the center point fixing mode. The predetermined reference time may be, for example, a time set within a range of 1 second to 2 seconds. The predetermined period of time used for determining whether the center point fixed mode is entered and the predetermined reference time used for determining whether the center point variable mode is ended may have the same value or may have different values. The configuration of the present invention has a very advantageous effect when the screen or image object is enlarged or reduced in a plurality of times, that is, if the user maintains the center point fixed mode, the user touches and moves the touch screen a plurality of times. You can zoom in, zoom out, and rotate image objects.

The touch screen device 100 may be, for example, a mobile phone or a personal computer, laptop computer, television or portable small electronic device. Here, the portable small electronic device means a portable electronic device that can be held and operated using only one hand. Examples of portable small electronic devices include mobile phones, digital cameras, MPEG layer 3 (MP3) players, personal digital assistants (PDAs), or portable multimedia players (PMPs).

FIG. 2 is a flowchart illustrating a method in which the controller 140 illustrated in FIG. 1 controls the touch screen 110. Referring to FIG. 2, initially, the controller 140 operates in a center point variable mode (S210). While in the center point variable mode, the touch screen 110 maintains a mode in which the center coordinates of the image object are changed, such as moving or scrolling the image object.

Thereafter, the controller 140 determines whether the touch position of the touch screen 110 remains substantially the same for a predetermined period or more (S220). If substantially the same, the control unit 140 enters the center point fixed mode (S230), otherwise the control unit 140 maintains the center point variable mode (S210).

When the controller 140 enters the center point fixing mode (S230), the controller 140 detects the fixed center point and the user touch position, and at least one of enlarging, reducing or rotating the image object according to the distance and angle change. The touch screen 110 is controlled in such a manner as to perform the above (S231). In another embodiment of the present invention, a mark of a form recognizable by a user may be generated at a point or a center point symmetrical (point symmetry) with respect to a user touch point based on the center point.

The control unit 140 determines whether the time interval between the resumption after the end of the touch on the touch screen 110 is greater than a predetermined reference time (S240), and if it is large, enters the center point variable mode (S210). Maintain the center point fixed mode (S230). In contrast, the controller 140 may enter the variable center point mode when the touch on the touch screen 110 is terminated and maintain the center point fixed mode when the touch is maintained.

FIG. 3 is a diagram illustrating an example of an operation of the touch screen apparatus 100 during the center point variable mode S210. Referring to FIG. 3A, when the inside of the image object 310A is touched and dragged, the image object 310A moves. At this time, the coordinate value of the image object 310A is changed in response to the user drag operation. In the figure, 310A, 310B, 330A, and 330B indicate an image object before the movement, an image object after the movement, a touch position before the movement, and a touch position after the movement, respectively.

Referring to FIG. 3B, when the desktop 340, which is a kind of image object, is touched and dragged, the image objects 350A and 360A included in the desktop 340 may be moved simultaneously with the movement of the desktop 340. Move. In the figure, 350A and 360A represent image objects before movement and 350B and 360B represent image objects after movement. In the figure, 370A indicates the touch position before the movement and 370B indicates the touch position after the movement.

4A to 4C are diagrams showing an example of the operation of the touch screen device 100 while in the center point fixing mode S230. Referring to FIG. 4A, when the touch positions 410A remain the same for more than a predetermined period, the center point c of the image object 420A is fixed. Subsequently, when the user touch position moves, the distance and angle of the center point c and the user touch position are changed as shown below.

Referring to FIG. 4B, when dragging is performed to increase the distance between the touch position 410A and the center point c (430A to 430A), the image object 420A is enlarged. For example, the magnification ratio ((square root of area after magnification-square root of initial area) / (square root of initial area) of the image object 420A is the rate of change of the distance between the touch position 410A and the fixed center point ((change Later distance-initial distance) / (initial distance)).

Referring to FIG. 4C, when the center point fixing mode is maintained, when the user drags in a rotational direction about the center point c, the user touch position is the second touch position (the first touch position 410A). 440A, wherein the first touch point 430A, the center point c, and the second touch point 440A have a predetermined angle a, corresponding to the predetermined angle a, The image object will rotate.

The present invention provides a new application interface method for simultaneously applying the center point fixing method to a plurality of image objects.

The application method of the present invention for a plurality of image objects is as follows.

5A-5C illustrate the application of the present invention to multiple image objects in accordance with one embodiment of the present invention.

Referring to FIG. 5, a plurality of image objects 510A, 510B, and 510C appear on a touch screen, and the plurality of image objects overlap each other. Here, the overlapped form means a form in which all or part of the image object is overlapped.

In this case, when simultaneously fixing one point 520 of the overlapping plurality of image objects as a center point, the plurality of image objects are all set to the center point where the point is fixed. In this case, the center point may be generated at a predetermined point according to a user's touch event, or may be set at a point desired by the user. The specific point may be set as a fixed common center point of the plurality of image objects in a case of touching a specific point in a distinctive manner, slowing the dragging speed, and the like.

Referring to FIG. 5B, when the user rotates the foremost image object 510A out of the plurality of image objects in a counterclockwise direction, another image object 510B positioned behind the foremost image object 510A. ) Is displayed. That is, the set center point performs a function of assembling a plurality of image objects as if the file is connected to the file, and the user can view the plurality of image objects simultaneously by sequentially viewing or unfolding the plurality of image objects. have.

Referring to FIG. 5C, if a plurality of image objects are fixed to one center point, the plurality of image objects may move all at once when the center point is moved in a specific direction.

As such, the center point fixation mode according to the present invention may be set or released according to a user's touch event, and when set, may be applied to various interactions. The above examples all correspond to a part of the application of the present invention, and the case where the center point fixing mode is maintained or released according to the user touch event is all within the scope of the present invention.

As described above, the present invention has been described in detail with reference to various embodiments, but a person having ordinary knowledge in the art to which the present invention pertains may be made without departing from the spirit and scope of the present invention as defined in the appended claims. Various modifications may be made to the invention. Therefore, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

1 is a diagram illustrating a touch screen device 100.

FIG. 2 is a flowchart illustrating a method in which the controller 140 illustrated in FIG. 1 controls the touch screen 110.

FIG. 3 is a diagram illustrating an example of an operation of the touch screen apparatus 100 during the center point variable mode S210.

4A to 4C are diagrams showing an example of the operation of the touch screen device 100 while in the center point fixing mode S230.

5A to 5C are diagrams illustrating an example in which the centering fixation mode S230 is performed on a plurality of image objects.

Claims (19)

In the touch screen control method based on the touch by the user input means, Fixing a center point of the image object in which at least one of enlarging, reducing and rotating the image object is performed; And Control the touch screen to perform at least one of enlargement, reduction, and rotation of an image object according to a change in distance and angle between the fixed center point generated by moving the touch position of the user input means and the touch position of the user input means. Method comprising the steps of: The method of claim 1, Said center point fixation is performed simultaneously on one or more image objects. The method of claim 1, And the center point fixing step is performed when the user input means has touched substantially the same position for a predetermined period or more. The method of claim 1, The center point of the image object can be set by the user. The method of claim 1, And fixing the center point when the touch pressure of the user input means exceeds a predetermined pressure. The method of claim 1, And fixing the center point when the user input means touches a specific area. The method of claim 1, The center point fixing step is performed when the moving speed of the user input means is less than a predetermined speed. The method of claim 1, And the image object is enlarged or reduced in proportion to a distance between a user input means and the center point. The method of claim 1, And the image object rotates corresponding to an angle between a first touch position and a second touch position of the user input means about the center point. The method of claim 1, And the movement of the touch position is movement by dragging. The method of claim 1, And when the touch of the user input means is initiated within a predetermined period after the touch by the user input means is terminated, the center point of the image object remains fixed. The method of claim 1, And when the touch of the user input means is started after a predetermined period after the touch by the user input means is terminated, the center point of the image object does not remain fixed. The method of claim 1, And a mark generated at a point symmetrical to a touch position of the user input means based on the center point. A touch sensor unit sensing a touch position of the user input means; When the touch of the user input means satisfies a predetermined condition, the center point of the image object is fixed, and according to a change in distance and angle between the center point generated by the movement of the user input means and the touch position of the user input means. A controller which performs at least one command of enlarging, reducing or rotating the image object; And And a display unit for displaying the image object by the controller. The method of claim 14, The center point fixing is performed simultaneously on one or more image objects. The method of claim 14, And the image object is enlarged or reduced in proportion to a distance between a user input means and the center point. The method of claim 14, And the image object rotates corresponding to an angle between a first touch position and a second touch position of the user input means around the center point. A mobile phone comprising the touch screen device according to any one of claims 14 to 17. A portable electronic device comprising the touch screen device according to any one of claims 14 to 17.

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