JPH07271505A - Image display controller - Google Patents

Abstract

PURPOSE:To scroll and magnify/reduce the images shown on the display screen of a display part by a simple operation by changing these shown images in response to the detected acceleration. CONSTITUTION:An acceleration detecting part 100 detects the value and the direction of acceleration in response to the right-left, up-down and front-back movements of a portable terminal main body which is operated by an operator. A arithmetic part 101 calculates the change information (scroll direction/value and magnification/reduction rates) on the images shown on the screen of an image display part 103 based on the value and the direction of the acceleration detected by the part 100. All image display control part 102 controls an image memory part 105 and the part 103 based on the image display change information received from the part 101. Thus it is not required for the operator to push buttons at each time for scroll and magnification/reduction operations on the screen nor to click a scroll bar or an icon within the screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display control device in an information equipment device and the like, and more particularly to an image display control device for scrolling and enlarging / reducing an image displayed on a display screen of a display section by a simple operation. Image display control device.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing a conventional image display control device, and FIG. 7 is an external view of a portable terminal configured by applying the image display control device shown in FIG. It is shown in. In FIG. 6, the image display control device is configured to include a scroll direction input unit 500, an enlargement / reduction input unit 501, an image display control unit 502, an image display unit 503, and an image input unit 504, and the image input unit 504.
The image information input from the image memory unit 505 is stored in the image memory unit 505.
The image display control unit 5 displays a part or all of the image for the frame.
It is configured to be displayed on the display screen of the image display unit 503 under the control of 02.

By the way, in this conventional image display control device, in order to see an image which is not displayed on the display screen of the image display unit 503, the scroll direction input unit 500 is used.
By scrolling the image displayed on the display screen of the image display unit 503 in a predetermined direction,
Further, in order to enlarge or reduce the image displayed on the display screen of the image display unit 503, the enlargement / reduction input unit 50 is used.
It is necessary to perform an operation of enlarging or reducing the image displayed on the display screen of the image display unit 503 by the enlargement or reduction instruction of 1.

Specifically, as shown in FIG. 7, a display screen 600 corresponding to the image display unit 503 shown in FIG. 6, scroll keys 601a to 601d corresponding to the scroll direction input unit 500 shown in FIG. 6, and FIG. The enlargement key 602a and the reduction key 602b corresponding to the enlargement / reduction input section 501 shown in FIG.
The display screen 600 displays a part or all of the image for one frame of the image information stored in the image memory unit 505 shown in FIG. When the upper image is scrolled, any one of the scroll keys 601a to 601d is pressed to scroll the image, and the display screen 600 is displayed.
When enlarging / reducing the upper image, the enlargement or reduction processing of the image is performed by pressing the enlargement key 602a or the reduction key 602b.

In this case, the scroll keys 601a-60
Scroll amount and expansion key 602 by one operation of 1d
a, the magnification ratio of enlargement / reduction by one operation of the reduction key 602b is constant, and the scroll keys 601a to 601d.
Number of times of operation, or the enlargement key 602a, reduction key 60
The scroll amount and the enlargement / reduction ratio are adjusted according to the number of operations of 2b.

Further, a scroll key 6 as shown in FIG.
01a-601d and enlargement key 602a, reduction key 6
A scroll bar or an icon is displayed on the display screen 600 without using 02b, and the scroll bar or the icon is clicked with the mouse to perform scrolling or enlargement / enlargement.
It is also known that after the reduction command is executed, the area is designated with a mouse or the like so that the enlargement / reduction is performed.

In this case, the scroll amount and the enlargement / reduction ratio are adjusted by the movement amount of the scroll bar and the size of the designated area.

[0008]

By the way, in the above-mentioned conventional image display control device, when scrolling the screen or enlarging / reducing the screen, the scroll key or the enlarging / reducing key is pressed each time, It was necessary to click the scroll bars and icons inside with a mouse, and the operation was complicated.

Further, in the case of the structure using the conventional mouse, a flat surface is required for operating the mouse, which is inconvenient especially when the image display control device is applied to a portable terminal. .

Further, in the case of the structure using the conventional scroll key or the enlargement / reduction key, the scroll amount and the enlargement / reduction ratio by one key operation become constant, so that any scrolling or enlargement / reduction can be performed. It was difficult to reduce the size.

Therefore, the present invention provides an image display control device which is capable of scrolling and enlarging / reducing an image displayed on the display screen of the display unit by a simple operation, and which is particularly suitable for a portable terminal. The purpose is to

[0012]

In order to achieve the above object, the present invention is an image display control device having a display section for displaying an arbitrary image on a display screen, and an acceleration detecting means for detecting acceleration, and the acceleration detecting means. Image change control means for changing the display image displayed on the display screen of the display unit according to the acceleration detected by the detection means.

[0013]

According to the present invention, the display image displayed on the display screen of the display unit is changed according to the acceleration detected by the acceleration detecting means.

Here, the acceleration detecting means is attached to the main body of the image display control device and detects the acceleration of the main body of the image display control device.

The acceleration detecting means is attached to an external device provided separately from the main body of the image display control device, and detects the acceleration of the external device.

The acceleration detecting means detects an acceleration in a direction parallel to the display screen of the display section, and the image change control means scrolls the display image displayed on the display screen of the display section.

The acceleration detecting means detects an acceleration in a direction perpendicular to the display screen of the display section, and the image change control means enlarges or reduces the display image displayed on the display screen of the display section. To do.

Further, the acceleration detecting means includes a first acceleration detecting means for detecting a first lateral acceleration of the display screen of the display section, and a second vertical acceleration of the display screen of the display section. And a third acceleration detecting means for detecting a third acceleration in the front-rear direction of the display screen of the display section, wherein the image change control means includes the first acceleration detecting means. First detected by the acceleration detecting means
The display image displayed on the display screen of the display unit is scrolled to the left and right according to the acceleration of, and the display screen of the display unit is displayed corresponding to the second acceleration detected by the second acceleration detection means. The displayed image displayed is scrolled up and down, and the displayed image displayed on the display screen of the display unit is enlarged or reduced in correspondence with the third acceleration detected by the third acceleration detecting means.

Further, the acceleration detecting means is x, y, z.
The image change control means displays the acceleration in the x direction detected by the acceleration detection means and the time during which the acceleration in the x direction has occurred on the display screen of the display unit. The first scroll amount in the first direction of the displayed image is calculated and displayed on the display screen of the display unit from the y-direction acceleration detected by the acceleration detection means and the time during which the y-direction acceleration was generated. The second scroll amount in the second direction of the displayed display image is calculated, and the z-direction acceleration detected by the acceleration detecting means and the time during which the z-direction acceleration is generated are displayed on the display screen of the display unit. The enlargement and reduction ratios of the displayed display image are calculated, and displayed on the display screen of the display unit in correspondence with the first scroll amount, the second scroll amount, the enlargement and reduction ratios. A display image is scrolled and magnified, reduced.

[0020]

Embodiments of the image display control apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of an image display control device according to the present invention. The embodiment shown in FIG. 1 is applied to image display control of a mobile terminal, and in this embodiment, an acceleration detection unit 100 is arranged in the main body of the mobile terminal and a detection output of the acceleration detection unit 100 is provided. Based on this, scrolling, enlargement, and reduction of the display image displayed on the display screen of the image display unit 103 are controlled.

The acceleration detecting section 100 is arranged in a mobile terminal body having a display screen 300 as shown in FIG. 2, and detects the magnitude and direction of acceleration of the mobile terminal body.
Here, the mobile terminal main body is portable and can be operated by being held by an operator.
When the operator moves the mobile terminal body in the left-right direction (x direction shown in FIG. 2), the up-down direction (y direction shown in FIG. 2), and the front-back direction (z direction shown in FIG. 2), the x direction, y
The magnitude of the acceleration and the direction thereof are detected in correspondence with the movement in the direction and the z direction.

The calculation unit 101 changes information (scroll direction, scroll amount, enlargement, reduction) of the display image displayed on the display screen 300 of the image display unit 103 based on the magnitude and direction of the acceleration obtained by the acceleration detection unit 100. Rate). In this embodiment, the x on the display screen of the image display unit 103 is corresponding to the movement of the mobile terminal body in the x direction.
The scroll amount in the direction is calculated, and the scroll amount in the y direction on the display screen of the image display unit 103 is calculated corresponding to the movement of the mobile terminal body in the y direction. It is configured to calculate the enlargement / reduction ratio of the display image on the display screen of the image display unit 103.

The image display control unit 102 controls the image memory unit 105 and the image display unit 103 in accordance with the image display change information output from the calculation unit 101. Here, the image memory unit 105 is a memory area for storing an arbitrary image, and the image memory unit 105 stores the arbitrary image from the image input unit 104. The image display unit 103 is a display that displays part or all of the image stored in the image memory unit under the control of the image display control unit 102.

FIG. 3 is a block diagram of the acceleration detector 100 shown in FIG.
3 shows a detailed configuration of the calculation unit 101.

In FIG. 3, the acceleration detecting section 100 includes an x-direction acceleration sensor 200 for detecting the magnitude of the x-direction acceleration shown in FIG. 2, a y-direction acceleration sensor 203 for detecting the y-direction acceleration, The calculation unit 101 includes a z-direction acceleration sensor 206 that detects the magnitude of acceleration in the z-direction, and the calculation unit 101 includes an x-direction movement speed calculation unit 201, a y-direction movement speed calculation unit 204, and a z-direction movement speed calculation unit 207. x-direction movement distance calculation unit 202, y-direction movement distance calculation unit 20
5, z-direction movement distance calculation unit 208, image change processing unit 20
9 is equipped.

The detection output of the x-direction acceleration sensor 200 of the acceleration detection unit 100 is input to the x-direction moving speed calculation unit 201 of the calculation unit 101, where the x-direction acceleration sensor 20 is
Based on the detection output of 0, the x-direction moving speed of the mobile terminal body is calculated. The calculation of the x-direction movement speed in the x-direction movement speed calculation unit 201 is performed by the x-direction acceleration sensor 200.
It can be calculated by integrating the detection output of.

The x-direction moving speed calculated by the x-direction moving speed calculating unit 201 is input to the x-direction moving distance calculating unit 202. Here, the x-direction moving distance of the mobile terminal body is calculated based on the x-direction moving speed calculated by the x-direction moving speed calculating unit 201. Note that the x-direction moving distance calculation unit 202
The calculation of the x-direction movement distance can be calculated by integrating the calculation output of the x-direction movement speed calculation unit 201.

The x-direction moving speed calculated by the x-direction moving speed calculating unit 201 and the x-direction moving distance calculated by the x-direction moving distance calculating unit 202 are input to the image change processing unit 209.

Similarly, the detection output of the y-direction acceleration sensor 203 of the acceleration detecting unit 100 is input to the y-direction moving speed calculating unit 204 of the calculating unit 101, where the y-direction moving speed is calculated and the y-direction moving speed is calculated. The speed is input to the y-direction moving distance calculation unit 205, where the y-direction moving distance is calculated, and the y-direction moving speed and the y-direction moving distance are input to the image change processing unit 209.

The detection output of the z-direction acceleration sensor 206 of the acceleration detecting unit 100 is input to the z-direction moving speed calculating unit 207 of the calculating unit 101, where the z-direction moving speed is calculated and the z-direction moving speed is calculated. Is input to the z-direction moving distance calculation unit 208, the z-direction moving distance is calculated here, and the z-direction moving speed and the z-direction moving distance are input to the image change processing unit 209.

The image change processing unit 209 changes the display image displayed on the display screen 300 shown in FIG. 2, based on the moving speeds and moving distances of the mobile terminal body in the x, y, and z directions, that is, The scroll direction, scroll amount, enlargement / reduction ratio are calculated.

The scroll direction / scroll amount and the enlargement / reduction magnification calculated by the image change processing unit 209 are input to the image display control unit 102 shown in FIG. 1, and the display image 300 shown in FIG. Scrolling and enlargement / reduction are controlled.

Although the arithmetic unit 101 shown in FIG. 3 successively calculates the moving speed and the moving distance from the acceleration detected by the acceleration detector 100, it is a table in which the relationship between the acceleration and the moving speed / moving distance is stored in advance. It may be configured to access the table and obtain the moving speed and the moving distance. In this case, a table of the acceleration, the moving speed and the moving distance is used instead of the calculation unit 101 in FIG.

FIG. 4 shows the image change processing unit 20 shown in FIG.
9 shows a detailed operation of No. 9. 1) Scroll operation The horizontal scroll of the display image 300 shown in FIG. 2 is performed by the moving speed and the moving distance of the mobile terminal main body in the x direction, which are output from the moving speed calculating unit 201 and the moving distance calculating unit 202. Similarly, the display image 300 is vertically scrolled by the moving speed and the moving distance in the y direction output from the moving speed calculating unit 204 and the moving distance calculating unit 205. At this time, each of the vertical and horizontal scrolls has three thresholds (thresholds 1 to 3 and thresholds 4 to 6). 1 of these 3 thresholds
One is a moving distance threshold, and the other two are moving speed thresholds. Thresholds for moving distance (threshold 1, threshold 4) and thresholds for moving speed (threshold 2, threshold 5) do not scroll when moving distance / moving speed is small And a threshold value for preventing camera shake. The second threshold (threshold 3 and threshold 6) of the moving speed is a value for changing the scroll speed.

When the moving speed is lower than the second threshold value, the scrolling amount is the same as the moving amount of the portable terminal body. That is, the user sees the display image 300, and scrolls so that the entire mobile terminal body moves without moving the entire image.

When the moving speed is higher than the second threshold value, the image memory unit 105 and the image display unit 103 are controlled so that scrolling is performed larger than the moving amount of the portable terminal body. To do.

In the present invention, it is not necessary for the threshold to be one for the moving distance and two for the moving speed.
The number of thresholds may be reduced or increased to keep the scroll speed constant without changing the moving distance or moving speed, or may be changed in an analog manner depending on the moving distance or moving speed.

2) Enlargement / Reduction Operation The screen is enlarged / reduced according to the moving speed and moving distance in the z direction of the portable terminal main body, which are output from the moving speed calculating unit 207 and the moving distance calculating unit 208. When the moving direction of the portable terminal main body is forward, that is, when the moving speed in the z direction is positive, the expansion is performed, and when the moving direction is backward, that is, when the moving speed in the z direction is negative, the reduction is performed. In addition, the direction may be reversed.

As in the case of scrolling, enlargement / reduction uses two threshold values (threshold values 7 and 8) to prevent camera shake. There is one threshold for moving distance and one for moving speed. If either the moving distance or the moving speed is smaller than the threshold value, the image memory unit 105 and the image display unit 1 are prevented from performing the enlargement / reduction operation.
03 is controlled. Further, like the scrolling, it is not necessary to set one threshold value for each of the moving distance and the moving speed, and it does not matter at all if the enlargement / reduction ratio is changed in an analog manner depending on the moving distance or the moving speed.

Next, the image display changing mode adopted in this embodiment will be described.

The above screen scrolling and enlarging / reducing operations are performed in the following modes.

1) Scroll mode A mode in which only horizontal and vertical scrolling is performed without changing the screen display for enlargement / reduction even when the acceleration detection unit 100 detects movement in the z direction.

2) Enlargement / Reduction Mode Even in the case where the acceleration detecting unit 100 detects movement in the x direction and the y direction, the mode in which only the enlargement / reduction is performed without changing the screen display for scrolling the screen.

3) Scroll, enlargement, reduction mode A mode in which all movements detected by the acceleration detection unit 100 are used to change the screen display. That is, scrolling and magnifying
A mode in which reduction can be performed simultaneously.

4) Non-operation mode A mode in which the screen display is not scrolled or the image display for enlargement / reduction is not changed even if the acceleration detection unit 100 detects any movement.

5) Manual mode A mode in which the screen is not scrolled or enlarged / reduced by acceleration detection as in the non-operation mode, but is scrolled or enlarged / reduced by a conventional scroll button or the like. 6)
Button operation mode When moving the main body of the mobile terminal while pressing a specific key, the above 1) scroll mode,
2) Enlargement / reduction mode, 3) Scrolling, enlarging, reduction mode is set, and 4) non-operation mode when moving without pressing any key.

In the above embodiment, the acceleration detecting unit 100 is provided in the portable terminal body shown in FIG. 2, and the display displayed on the display screen of the image display unit 103 based on the detection output of the acceleration detecting unit 100. Although it is configured to control the scrolling and enlarging / reducing of the image, the acceleration detection unit 100 is provided in an external device such as a mouse connected to the mobile terminal body, and the image is displayed based on the detection output of the acceleration detection unit 100. It may be configured to control scrolling and enlargement / reduction of a display image displayed on the display screen of the unit 103.

FIG. 5 shows another embodiment of such a structure. In this embodiment, a mouse 401, which is an external device, is connected to the portable terminal body 400, and the mouse 401 detects acceleration. The section 100 is provided. In this case, the acceleration detection unit 100 moves the mouse 401 in the left-right direction (x direction shown in FIG. 5), the up-down direction (y direction shown in FIG. 5), and the front-back direction (z direction shown in FIG. 5).
The magnitude and direction of the acceleration are detected in correspondence with the movements in the x-direction, the y-direction, and the z-direction. Other operations are similar to those described with reference to FIGS. In this case,
Since the mobile terminal body 400 is not moved, the mobile terminal body 400 may be a stationary terminal.

[0050]

As described above, according to the present invention,
Since it is configured to change the display image displayed on the display screen of the display unit according to the detected acceleration by the acceleration detection means, when scrolling or enlarging / reducing the display screen, the button is pressed one by one. There is no need to press or click the scroll bar or icon on the screen, and the screen can be scrolled or enlarged / reduced simply by moving the main body of the device or an external device such as a mouse. Therefore, even if it is used for a mobile terminal, it does not require a flat surface for using a mouse.
The operation can be easily performed.

In the past, if there is no scroll bar or the like, the amount of screen scroll and the magnification of enlargement / reduction, which are adjusted by the number of operations and the time of pressing the button, are also adjusted by the moving speed of the main body of the apparatus or an external device such as a mouse. Can be changed by.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an image display control device according to the present invention.

FIG. 2 is an external view showing the external appearance of a mobile terminal configured by applying the image display control device shown in FIG.

3 is a block diagram showing a detailed configuration of an acceleration detection unit and a calculation unit shown in FIG.

FIG. 4 is a flowchart showing a detailed operation of the image change processing unit shown in FIG.

FIG. 5 is an external view showing another embodiment of the image display control device according to the present invention.

FIG. 6 is a block diagram showing a conventional image display control device.

7 is an external view showing the external appearance of a mobile terminal configured by applying the image display control device shown in FIG.

[Explanation of symbols]

 100 acceleration detection unit 101 calculation unit 102 image display control unit 103 image display unit 104 image input unit 105 image memory unit 200 x-direction acceleration sensor 201 x-direction movement speed calculation unit 202 x-direction movement distance calculation unit 203 y-direction acceleration sensor 204 y Direction moving speed calculation unit 205 y direction moving distance calculation unit 206 z direction acceleration sensor 207 z direction moving speed calculation unit 208 z direction moving distance calculation unit 209 Image change processing unit 500 Scroll direction input unit 501 Enlargement / reduction input unit 502 Image display Control unit 503 Image display unit 504 Image input unit 505 Image memory unit 600 Image display unit 601 Scroll button 602 Enlargement / reduction input unit

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location G09G 5/00 550 C 9471-5G 5/34 Z 9471-5G 5/36 520 E 9471-5G

Claims (7)

[Claims] 1. An image display control device having a display unit for displaying an arbitrary image on a display screen, wherein an acceleration detecting unit for detecting an acceleration, and an acceleration detecting unit for detecting an acceleration corresponding to the acceleration detected by the acceleration detecting unit. An image display control device comprising: an image change control means for changing a display image displayed on a display screen. 2. The image display control apparatus according to claim 1, wherein the acceleration detecting means is attached to the image display control apparatus main body and detects the acceleration of the image display control apparatus main body. 3. The image display according to claim 1, wherein the acceleration detecting means is attached to an external device provided separately from the main body of the image display control device, and detects the acceleration of the external device. Control device. 4. The acceleration detecting means detects an acceleration in a direction parallel to the display screen of the display section, and the image change control means scrolls a display image displayed on the display screen of the display section. The image display control device according to claim 1. 5. The acceleration detection means detects an acceleration in a direction perpendicular to the display screen of the display section, and the image change control means enlarges or reduces the display image displayed on the display screen of the display section. The image display control device according to claim 1, wherein 6. The acceleration detecting means includes first acceleration detecting means for detecting a first horizontal acceleration of the display screen of the display section, and second vertical acceleration of the display screen of the display section. And a third acceleration detection unit that detects a third acceleration in the front-rear direction of the display screen of the display unit, wherein the image change control unit includes the first acceleration detection unit. Corresponding to the second acceleration detected by the second acceleration detecting means by scrolling the display image displayed on the display screen of the display section to the left and right corresponding to the first acceleration detected by the acceleration detecting means. Then, the display image displayed on the display screen of the display unit is scrolled up and down, and the display displayed on the display screen of the display unit corresponding to the third acceleration detected by the third acceleration detecting unit. Enlarge or reduce image The image display control device according to claim 1, characterized in that. 7. The acceleration detecting means detects accelerations in three directions of x, y and z directions, and the image change control means detects accelerations in the x direction detected by the acceleration detecting means and the x direction. The y-direction acceleration detected by the acceleration detecting means and the y-direction are calculated by calculating the first scroll amount in the first direction of the display image displayed on the display screen of the display unit from the time when the acceleration is generated. The second scroll amount in the second direction of the display image displayed on the display screen of the display unit is calculated from the time when the acceleration is generated, and the z-direction acceleration detected by the acceleration detection means and the z Magnification and reduction ratio of the display image displayed on the display screen of the display unit are calculated from the time when the directional acceleration is generated, and the first scroll amount, the second scroll amount, and The image display control device according to claim 1, wherein the display image displayed on the display screen of the display unit is scrolled and enlarged / reduced corresponding to the enlargement / reduction ratio.