JPH11102274A - Scroll device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the device capable of designating scroll operation by a finger without impairing clicking and dragging operation on a touch panel by detecting more than one places being touched, judging a scroll indication, and scrolling a display screen. SOLUTION: A scroll judging means 21 judges that position data on touch positions obtained from a contact sense means 11 of the touch panel are the scroll designation when more than one place is touched at the same time and also judges that the data are the designation of another operation for such as dragging. When one place is touched. The operation indication for clicking and dragging which is judged by the scroll judging means 21 is executed by a screen operation means 22, transmitted to a display control means 23 put in charge of screen drawing, and displayed on a display output device 3. Thus, specifying operation for an icon for scrolling is not necessary, so the scroll indication can be made only by touching the touch panel with more than one finger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a scroll device, and more particularly to a scroll device that determines a scroll instruction based on the number of simultaneous touch points by a finger on a touch panel.

[0002]

2. Description of the Related Art Conventionally, in a touch panel device with a scroll instruction function, as shown in, for example, JP-A-5-27744 and JP-A-6-149531, a portion which cannot be displayed at a time on a display screen is displayed. Instead of using the scroll instruction icon, a finger is slid on the touch panel to indicate the scroll direction and the scroll amount, and the display screen is scrolled.

[0003]

A first problem is that in a system in which a function equivalent to a drag operation of an object with a mouse is realized using a touch panel, a scroll instruction can be issued only by touching a finger. Absent. The reason is,
This is because the operation procedure of the drag instruction and the operation procedure of the scroll instruction are the same operation, and therefore a means for identifying both instructions is required.

An object of the present invention is to provide a device capable of instructing a scroll operation with a finger without impairing click and drag operations on a touch panel.

Another object of the present invention is to provide a device capable of promptly instructing scrolling without particularly using a scroll operation instruction icon.

[0006]

According to the scroll device provided with the touch panel of the present invention, the drag operation and the scroll operation, which are conventionally used, are performed at one or a plurality of touch points on the touch panel. Judge
Identify whether it is a scroll instruction.

[0007] Therefore, in a scroll device equipped with a touch panel, in which the touch screen is scrolled by sliding a touch position with a finger on the touch panel, a scroll instruction is detected by detecting that the touch positions are plural at the same time. And a control device for scrolling the display screen.

[0008] Further, the control device includes: contact sensing means for detecting a plurality of simultaneous touch locations on the touch panel;
Scroll determination means for averaging the position data of the movement trajectories of the plurality of touch points to calculate a scroll direction and a scroll amount; screen operation means for drawing a screen based on the scroll direction and the scroll amount; And a display control means for outputting a display screen according to (1) to a display output device.

The type of operation is determined based on whether the operator touches a slide operation instruction on the touch panel with one finger or a plurality of fingers using a finger. A scroll operation can be instructed by a finger slide without impairing the operation.

[0010]

Embodiments of the present invention will be described with reference to the drawings. Referring to FIG. 1 showing an embodiment, a touch panel 1 such as a tablet or a slide pad, a control device 2 that controls screen drawing by an instruction of a finger through the touch panel 1, and a display output such as a display Device 3. Touch panel 1
Comprises a touch sensing means 11 for individually detecting a plurality of touch points and converting a sensor signal into position data. The control device 2 determines whether or not a scroll instruction is given based on whether or not the position data from the touch panel 1 is at a plurality of locations or at one location, and a scroll determination unit 21 that calculates a scroll direction and a scroll amount. A screen operation unit 22 for drawing a screen based on a scroll direction and a scroll amount, and a display control unit 23 for outputting a display to a display output device 3 such as a display are provided.

Next, the operation of this embodiment will be described with reference to FIG. The position data of the touch location obtained from the contact sensing means 11 of the touch panel 1 is determined by the scroll determination means 21 as a scroll instruction when there are a plurality of touch locations at the same time. It is determined that this is an operation instruction. Referring to the flowchart 2, the process of the scroll determination means 21 first determines whether or not there is a touch location on the touch panel 1 (step 201), and waits if there is no position data input of the touch location (N in step 201). If there is position data input, it is determined whether or not the position data is at a plurality of positions (step 202). If there is only one position (N at step 202), it is determined that there is an instruction other than the scroll instruction (click, drag, etc.). Then, the instruction is processed (step 205). If there are a plurality of locations (Y in step 202), it is determined that a scroll instruction has been made, and it is determined whether or not the touch location has moved (step 203). If the touch continues without movement, the process waits (N in step 203). If the touched part is moving (Y in step 203), it is determined whether or not the movement is a plurality of places (step 204). If there is only one location (N in step 204), the instruction is determined to be an instruction other than the scroll instruction (drag or the like), and the procedure of the instruction is terminated (step 205). If there are a plurality of positions (Y in step 204), the scroll amount and the scroll direction are obtained by averaging the position data based on the position data of each touch (step 206). The scroll direction and the scroll amount are transmitted to the next screen operation means 22, and the operation procedure of the display screen according to the scroll instruction is ended (step 20).
7). The click determined by the scroll determination means 21,
The drag operation instruction is executed by the screen operation means 22, transmitted to the display control means 23 in charge of screen drawing, and displayed on the display output device 3.

Next, the operation of the embodiment of the present invention will be described with reference to the drawings. Referring to FIG. 3 showing a sliding locus of a finger on the touch panel 1, two fingers are slid on the touch panel 1 to instruct scrolling. Two touch locations 301 and a touch location 302,
The finger slide trajectory 331, the slide trajectory 332, and the end points 321 and 322 of the finger slide trajectory are shown.

Referring to FIG. 4, the moving amounts of the sliding trajectories 331 and 332 of the two fingers in FIG. 3 and the scroll direction / scroll amount 401, which is the average of the moving directions, are calculated. Since there are two touch locations, it is determined that the instruction is a scroll instruction.
The scroll direction / scroll amount 401 is calculated from the average of 1,332, and scrolling is performed.

[0014]

A first effect of the present invention is that scrolling can be performed quickly. The reason for this is that a scrolling instruction can be issued only by touching the touch panel with a plurality of fingers, since a designation operation of a scroll icon or the like is not required.

A second effect is that sliding of a finger on the touch panel can be distinguished from a conventional drag operation of an object. The reason is that the scroll operation is determined based on the slide trajectories of a plurality of fingers, the drag operation of the object is determined in the conventional one-finger slide, and the scroll instruction and the drag instruction are identified by the number of fingers. Because.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a view showing a flowchart of FIG. 1;

FIG. 3 is a diagram illustrating a finger trajectory on the touch panel device of FIG. 1;

FIG. 4 is a diagram showing a scroll direction and a scroll amount based on the finger locus of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Touch panel 2 Control device 3 Display output device 11 Contact sensing means 21 Scroll judgment means 22 Screen operation means 23 Display control means

Claims (2)

[Claims] 1. A scroll device equipped with a touch panel, wherein a touch position by a finger is slid on the touch panel to scroll a display screen. A scroll device comprising a control device for judging the condition and scrolling the display screen. 2. The control device according to claim 1, wherein the control unit detects a plurality of simultaneous touch points on the touch panel, and calculates a scroll direction and a scroll amount by averaging position data of movement trajectories of the plurality of touch points. Scroll determining means for performing scrolling, screen operating means for performing screen drawing based on the scroll direction and the scroll amount, and display control means for outputting a display screen based on the screen drawing to a display output device. apparatus.