KR20110088719A - Apparatus and method for zooming screen in display using touch panel - Google Patents

Apparatus and method for zooming screen in display using touch panel Download PDF

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Publication number
KR20110088719A
KR20110088719A KR1020100008352A KR20100008352A KR20110088719A KR 20110088719 A KR20110088719 A KR 20110088719A KR 1020100008352 A KR1020100008352 A KR 1020100008352A KR 20100008352 A KR20100008352 A KR 20100008352A KR 20110088719 A KR20110088719 A KR 20110088719A
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KR
South Korea
Prior art keywords
input
point
screen
axis
change
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Application number
KR1020100008352A
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Korean (ko)
Inventor
이제원
Original Assignee
삼성전자주식회사
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Priority to KR1020100008352A priority Critical patent/KR20110088719A/en
Publication of KR20110088719A publication Critical patent/KR20110088719A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04806—Zoom, i.e. interaction techniques or interactors for controlling the zooming operation

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)

Abstract

The present invention is to enlarge the screen in the display means using a resistive touch panel, the enlargement operation, the process of setting the magnification point according to the user's touch input according to a predefined rule, and the input compared to the magnification point If the coordinate is changed, the process of setting the starting point of the input coordinate after the change, and if the input coordinate is moved from the start point, the process of enlarging or reducing the screen around the enlarged point according to the change direction of the input coordinate It includes.

Description

Apparatus and method for screen magnification in a display using a touch panel {APPARATUS AND METHOD FOR ZOOMING SCREEN IN DISPLAY USING TOUCH PANEL}

The present invention relates to a display means using a touch panel, and more particularly, to an apparatus and a method for screen magnification in a display means using a resistive touch panel.

In recent years, portable devices such as portable terminals have been gradually miniaturized. Accordingly, in order to save the space occupied by the keypad and to provide a wider display to the user, a display using a touch panel which serves as a display means and an input means is adopted. In addition, due to the ease of intuitive interface configuration, the display using the touch channel is widely used in other equipment besides the portable terminal.

The touch panel is largely classified into a resistive film type and a capacitive type. The resistive film method is a method in which a transparent electrode film is disposed on a screen, a predetermined space, that is, a resistive film is formed, and an outer surface lens is installed on the resistive film. At this time, when pressure is generated, the lens and the electrode film are contacted, thereby identifying the input position. Unlike the resistive film method, the capacitive type eliminates space and adheres the transparent electrode film and the outer surface lens to use the electrostatic reaction.

In general, portable terminals are provided with display means of limited size for portability. Therefore, in order to overcome the size limitation of the display means and ensure the convenience of the user, a function of zooming a part of the displayed screen is required. Accordingly, the present invention is to propose an operation method in which the user can conveniently utilize the screen magnification function in the display means using the touch panel.

Accordingly, it is an object of the present invention to provide an apparatus and method for screen zoom in display means using a touch panel.

Another object of the present invention is to provide an apparatus and method for screen enlargement in a display means using a resistive touch panel.

Still another object of the present invention is to provide an apparatus and method for screen enlargement using two pressure points in a display means using a resistive touch panel.

According to a first aspect of the present invention for achieving the above object, a method of operating a display device using a resistive touch panel is a process of setting an enlargement point according to a user's touch input according to a predefined rule And setting a starting point of the input coordinates after the change when the input coordinates change with respect to the enlarged point; and moving the input coordinates from the starting point, based on the change point of the input coordinates. And expanding or reducing the screen.

According to a second aspect of the present invention for achieving the above object, a display device using a resistive touch panel, the touch screen having the resistive touch panel, and the user's touch according to a predefined rule When an input occurs, a magnification point is set, and when an input coordinate with respect to the magnification point is changed, a start point is set as the input coordinate after the change, and when the input coordinate moves from the start point, And a control unit for generating image data enlarged or reduced based on the enlarged point.

As in the present invention, the center point of the enlargement and the drag for the enlargement / reduction occur at separate input points, so that the user can easily enlarge / reduce the screen of the desired portion.

1 is a view showing an example of a user input for screen magnification in a display means using a touch panel according to an embodiment of the present invention;
2 is a diagram illustrating a screen magnification procedure of a device having a display means using a touch panel according to an embodiment of the present disclosure;
3 is a block diagram of an apparatus having a display means using a touch panel according to an exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, a description will be given of a technique for zooming a screen in a display means using a resistive touch panel. Screen enlargement technology according to an embodiment of the present invention described below is a cellular phone (Celluar Phone), Personal Communication System (PCS: Personal Communication Assistant), PDA (PDA: Personal Digital Assistant), IMT2000 (International Mobile Telecommunication- 2000) Any device having a display means using a resistive touch panel as well as a portable terminal such as a terminal can be applied.

1 illustrates an example of a user input for screen magnification in a display means using a touch panel according to an exemplary embodiment of the present invention. In FIG. 1, the circles 101, 102, 103 in which alphabets are written represent touch pressure points generated by a user, and each alphabet represents a function of the pressure points.

Referring to FIG. 1, a zoom point 101 is determined according to a user's touch input according to a predefined rule. For example, when the user maintains an input at a point for more than a predetermined time, the point at which the input is maintained may be set as the enlarged point 101.

After the magnification point 101 is determined, the user applies pressure to another point while maintaining the input of the magnification point 101, and the other point is set as the starting point 102. In the case of the resistive film type, when pressure is applied to two different points, the resistance value of the middle point of the two points is recognized. Therefore, when the user applies pressure to the magnification point 101 and the start point 102, the display means recognizes the intermediate point between the magnification point 101 and the start point 102 as input coordinates. Accordingly, the display means recognizes that an input coordinate has been changed from the enlarged point 101 to an intermediate point between the enlarged point 101 and the start point 102.

Thereafter, the user drags the input of the start point 102 to the end point 103, and thus the input coordinate is moved. In this case, as described above, in the case of the resistive film method, when pressure is applied to two different points, the resistance value of the middle point of the two points is recognized. Thus, the input coordinates move from the midpoint of the magnification point 101 and the start point 102 to the midpoint of the magnification point 101 and the end point 103. Accordingly, the display means enlarges the screen around the enlarged point 101 according to the change amount and the change direction of the input coordinates by the user's dragging. At this time, the change amount and the change direction are measured on a specific reference axis. The specific reference axis may be a Y axis (vertical axis) or an X axis (horizontal axis) of the screen, or an axis configured by a combination of the Y axis and the X axis. For example, when using the Y axis, the + direction is enlarged and the − direction is reduced, and the ratio of enlargement and reduction is determined as a function of the amount of coordinate change. For example, the ratio of the enlargement and reduction may be determined as a linear ratio or a log ratio with respect to the coordinate change amount.

At this time, the coordinate change amount 111 actually moving in accordance with the pressure point drag from the start point 102 to the end point 103 is half of the pressure point drag length. Therefore, the extent of the enlargement and reduction may be determined in consideration of the relationship between the coordinate change amount and the pressure point drag length.

2 illustrates a screen enlargement procedure of a device having a display means using a touch panel according to an exemplary embodiment of the present invention.

Referring to FIG. 2, in step 201, the device determines whether an input of a reference time or more is maintained at the same coordinate. Here, keeping an input of a reference time or more at the same coordinate is a method of determining an enlargement point. That is, the device determines whether to activate the magnification function by determining whether a user's touch input according to the rule defined in step 201 occurs. According to another embodiment of the present invention, other rules other than maintaining the input above the reference time may be used.

If the input is maintained above the reference time, the device proceeds to step 203 to activate the enlargement function. In operation 205, the device sets the first input coordinate at which the input was maintained as the enlargement point. Here, the magnification point means a point which becomes the center of screen magnification.

After setting the initial input point as the magnification point, the device proceeds to step 207 to determine whether the coordinates of the Y axis change based on the magnification point. Here, the change in the coordinate of the Y axis means that the input point is changed to the coordinate spaced apart by the distance greater than or equal to the threshold point. If the coordinates of the Y axis do not change, the device proceeds to step 209 to determine whether the touch input is released, and when the touch input is released, the device returns to step 201.

On the other hand, if the coordinates of the Y axis change, the device proceeds to step 211 to set the input coordinates after the change as a starting point. In other words, the device sets the point of the coordinate that was first changed after the enlargement function is activated as the start point.

In operation 213, the device determines whether the coordinates of the Y-axis are shifted based on the starting point. If the coordinates of the Y axis do not move, the device proceeds to step 215 to check if the touch input is released and returns to step 201 if the touch input is released.

On the other hand, when the coordinates of the Y axis move, the device proceeds to step 217 to enlarge or reduce the screen around the enlarged point according to the change amount and the change direction of the coordinates of the Y axis. For example, when the change direction is the + direction of the Y axis, the device enlarges the screen, and when the change direction is the − direction of the Y axis, the device reduces the screen. Further, the ratio of the enlargement or reduction is determined as a function of the amount of change in the coordinates. For example, the ratio of the enlargement and reduction may be determined as a linear ratio or a log ratio with respect to the coordinate change amount.

In the description with reference to FIG. 2, the amount of change and the direction of change for determining whether the enlargement and reduction and the ratio of the enlargement and reduction are measured on the Y axis. However, according to another exemplary embodiment of the present invention, the change amount and the change direction may be measured on the X axis, or may be measured using both the X axis and the Y axis.

3 is a block diagram of an apparatus including a display means using a touch panel according to an exemplary embodiment of the present invention.

As shown in FIG. 3, the apparatus includes a touch screen 302, an image processor 304, and a controller 306.

The touch screen 302 is a display device having a resistive touch panel and includes the touch panel and display means. For example, the display means may be a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. The touch screen 302 displays status information generated during operation of the device and numbers, letters, and images according to the execution of an application program. That is, the touch screen 302 displays an image signal provided from the image processor 304 on a visual screen. In addition, the touch screen 302 recognizes a user's touch input through the pressure applied to the touch panel, and provides input coordinates of the touch input to the controller 306. The image processor 304 converts the image data provided from the controller 306 into an image signal and provides the image signal to the touch screen 302.

The controller 306 processes a touch input through the touch screen 302, generates the image data, and provides the image data to the image processor 304. In particular, the controller 306 controls the screen magnification function according to the generation information of the touch input provided from the touch screen 302. In detail, the controller 306 checks whether an input of a reference time or more is maintained at the same point. Here, maintaining an input of a reference time or more at the same point is a method of determining an enlargement point. According to another embodiment of the present invention, other conditions other than maintaining the input above the reference time may be used. If the input is maintained above the reference time, the controller 306 activates the magnification function and sets the first input point at which the input was maintained as the magnification point. Subsequently, when the coordinates of the Y axis change based on the enlarged point, the controller 306 sets the coordinates of the Y axis after the change as a start point. Thereafter, when the coordinates of the Y axis change based on the starting point, the controller 306 generates image data that is enlarged or reduced around the enlarged point according to the change amount and the change direction of the coordinates of the Y axis. Here, whether the enlargement and reduction and the ratio of the enlargement and reduction are determined using only Y-axis coordinates. However, according to another embodiment of the present invention, whether the enlargement and reduction and the ratio of the enlargement and reduction may be determined using only X-axis coordinates or both X and Y-axis coordinates.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (12)

In the operation method of the display device using a resistive touch panel,
Setting an enlargement point according to a user's touch input according to a predefined rule,
Setting a starting point of the input coordinates after the change when the input coordinates with respect to the enlarged point are changed;
And when the input coordinate is moved from the start point, expanding or reducing the screen around the enlarged point according to a change direction of the input coordinate.
The method of claim 1,
The predefined rule is characterized in that the input for a predetermined time is maintained at the same coordinates.
The method of claim 1,
The process of enlarging or reducing the screen,
And enlarging or reducing the screen at a rate determined according to a change amount of the input coordinates.
The method of claim 3,
The process of enlarging or reducing the screen,
If the change direction is a positive direction of the reference axis, enlarging the screen;
And reducing the screen if the change direction is a minus direction of the reference axis.
The method of claim 4, wherein
Wherein the reference axis is one of an X axis and a Y axis or a combination of the X axis and the Y axis.
The method of claim 1,
The change of the input coordinates relative to the enlarged point means that the input point is changed to coordinates spaced apart from the enlarged point by a distance greater than or equal to a threshold.
In a display device using a resistive touch panel,
A touch screen including the resistive touch panel;
Set an enlargement point according to a user's touch input according to a predefined rule, and if an input coordinate is changed with respect to the enlarged point, set a start point of the input coordinate after the change, and move the input coordinate from the start point And a controller configured to generate image data enlarged or reduced around the enlarged point according to a change direction of the input coordinates.
The method of claim 7, wherein
And said predefined rule comprises maintaining an input for a predetermined time at the same coordinate.
The method of claim 7, wherein
The controller may be configured to enlarge or reduce the screen at a rate determined according to a change amount of the input coordinates.
10. The method of claim 9,
The control unit may enlarge the screen if the change direction is the + direction of the reference axis, and reduce the screen if the change direction is the − direction of the reference axis.
The method of claim 10,
Wherein the reference axis is one of an X axis and a Y axis or a combination of the X axis and the Y axis.
The method of claim 7, wherein
The change of the input coordinates relative to the enlarged point means that the input point is changed to a coordinate spaced apart from the enlarged point by a distance greater than or equal to a threshold.
KR1020100008352A 2010-01-29 2010-01-29 Apparatus and method for zooming screen in display using touch panel KR20110088719A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101375727B1 (en) * 2012-09-28 2014-03-19 유상현 Touch screen zoom in or zoom out method and apparatus using the linear touch pattern
KR20140071282A (en) * 2012-09-29 2014-06-11 후아웨이 디바이스 컴퍼니 리미티드 Electronic device and method for controlling zooming of displayed object
KR101501811B1 (en) * 2012-08-27 2015-03-12 이영재 A touch screen scale up system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101501811B1 (en) * 2012-08-27 2015-03-12 이영재 A touch screen scale up system
KR101375727B1 (en) * 2012-09-28 2014-03-19 유상현 Touch screen zoom in or zoom out method and apparatus using the linear touch pattern
KR20140071282A (en) * 2012-09-29 2014-06-11 후아웨이 디바이스 컴퍼니 리미티드 Electronic device and method for controlling zooming of displayed object
US9632680B2 (en) 2012-09-29 2017-04-25 Huawei Device Co., Ltd. Electronic device and method for controlling zooming of displayed object
US10324604B2 (en) 2012-09-29 2019-06-18 Huawei Device Co., Ltd. Electronic device and method for controlling zooming of displayed object

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