JPS63192087A - Scroll display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] The present invention provides a scroll display device in which the moving speed of the indicated position is equal to the scrolling speed, so even if the indicated position is changed relatively quickly, it is possible to scroll with the maximum amount of movement per time. In order to solve the conventional problem that the maximum m is limited by the screen size and it is not possible to scroll over a relatively wide range in a short time, the scroll speed is made non-linear with the movement speed of the indicated position. If you move the indicated position quickly, you can obtain a scroll amount that is greater than the screen size with the maximum movement m per time, making it possible to scroll a large amount of information over a relatively wide area in a short time. be.

[Industrial application field]

The present invention relates to a scroll display device, and particularly to a scroll display device for a terminal having a coordinate output means (hereinafter referred to as a touch panel) as an input device and a display as an output device. In such terminals, a scroll display device is effective for displaying a large amount of information in a limited screen area on the display. In particular, when a touch panel is provided, in order to refer to a large amount of information, it is necessary to scroll at a speed faster than the finger movement speed, and to scroll information over a wide range in a short time.

(Conventional technology) FIG. 4 shows a block diagram of an example of a conventional device.

In the figure, when a finger is touched and moved on a touch panel 2 provided on a display 1, coordinates are output from the touch panel 2 at a constant cycle. By calculating the change in this coordinate using the touch panel system w@n3, speed information corresponding to the moving speed of the finger is retrieved from the touch panel system @ device 3, and the CPU 4 outputs information for scrolling display corresponding to this speed information. Memory address is output. Image information (corresponding to the scroll speed S) corresponding to the memory address is taken out from the display control device 5 and supplied to the display 1, so that the screen of the display 1 is scrolled.

In this case, the finger movement speed d and the scroll speed S are the fifth
As shown in the figure, there is a relationship s=d, and the finger movement speed IJ!
scrolled equal to d. In other words, the finger movement speed d
C so that the scrolling speed of the displayed content is always the same.
The start address of the memory screen display taken out from PtJ4 is changed.

[Problem that the invention seeks to solve]

In conventional devices, the moving speed of the finger and the scrolling speed are equal, so even if the finger is moved relatively quickly, the maximum ω that can be scrolled with one finger movement [t is limited by the screen size, and therefore, for example, When scrolling over a wide range, it is necessary to move the finger repeatedly to refer to two points that are very far apart, and there is a problem in that the user cannot refer to the most important information in a short period of time.

[Means for solving problems]

FIG. 1 shows a block diagram of the principle of the device of the present invention.

In the figure, 1 is a display, 2 is a touch panel, and 6 is a CPtJ including a nonlinear arithmetic circuit. As shown in the figure, the device of the present invention has a means (CP including a nonlinear arithmetic circuit) that makes the scroll speed have a nonlinear relationship with the finger movement speed.
U)6 is provided.

[Effect]

The finger movement speed information obtained by the touch panel control device 3 is non-linearly calculated, for example, in the form of a cubic function in a CPtJ6 including a non-linear calculation circuit, and the CPtJ6 outputs a memory address for displaying a corresponding scroll. When the finger movement speed is small, the scroll speed is also small, giving a feeling of scrolling in close contact with the finger, and when the finger movement speed is high, the scroll speed is greater than the finger movement speed, and the maximum speed of one finger is With the movement m, it is possible to obtain a scroll that is larger than the screen size.

(Embodiment) FIG. 2 shows a block diagram of an embodiment of the device of the present invention,
In this figure, the same parts as in FIG. 4 are given the same numbers and their explanations will be omitted. In the figure, 6 is a CP including a nonlinear arithmetic circuit.
At U, a memory address control unit 61 roughly calculates finger movement speed information d taken out from the touch panel control device 3 nonlinearly in a cubic function and outputs a memory address for scrolling display in accordance with the calculation; A limiter 62 that limits the output of the memory address control unit 61 at a certain point and a memory address that generates a memory address that is scrolled in response to the output of the limiter 62! It consists of $63.

The device of the present invention includes, between the touch panel control device 3 and the display control device 5, a nonlinear arithmetic circuit that nonlinearly changes the moving speed d of the finger and outputs a memory address to be scrolled accordingly. It is characterized by the provision of .

Here, if the moving speed of the finger is d and the scroll speed is S1 coefficient aO*aI*a2, then in the nonlinear arithmetic circuit of the memory address control section 61, s=a, d+a1
d2+a2d3 is calculated to obtain the output of the cubic function portion shown in FIG. 3, and furthermore, the scroll speed S is suppressed by the limiter 62 so as not to become excessive, and the output shown in FIG. 3 is obtained. The start address of the screen display is sequentially changed according to this scrolling speed S, and the scrolling display is performed on the display 1.

As shown in Fig. 3, this scrolling speed S is extremely small when the moving speed d of the finger is small, and therefore the range of change in the start address of the screen display is also small, giving the feeling of scrolling in close contact with the finger. When the movement speed d increases to a certain extent, it increases cubically, and therefore the range of change in the start address of the screen display is also large, and in particular, it is possible to obtain a scroll amount greater than the screen size with one maximum finger movement 1i1Jl. .

Note that the cubic function curve can be freely set by appropriately selecting the coefficient aO*aI+82.

〔Effect of the invention〕

According to the present invention, since the scroll speed is made in a non-linear relationship with the finger movement speed, when the finger is moved relatively quickly, the amount of scrolling greater than the screen size can be obtained with one maximum movement of the finger. You can refer to a large amount of information over a relatively wide range in a short time, and when you move your finger relatively slowly, you can feel the scroll closely touching your finger, allowing you to select the speed of your finger movement. By doing so, it has the advantage of being able to perform various types of scrolling that make use of the sensations of the fingers.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, FIG. 3 is a diagram showing the relationship between finger movement speed and scroll speed in the present invention, and FIG. 4 is a diagram showing the relationship between finger movement speed and scroll speed in the present invention. Conventional Block Diagram FIG. 5 is a diagram showing the relationship between finger movement speed and scrolling speed in the conventional technology. In the figure, 1 is a display, 2 is a touch panel, 3 is a tap panel control device, 5 is a display control device, and 6 is a CPU including a nonlinear arithmetic circuit. Reference numeral 61 represents a memory address generation unit control unit, 62 a limiter, and 63 a memory address generation unit. Figure 3 #-East Lis 20-ILi Indication 51 Bu b, 2 concave Figure 4

Claims (2)

[Claims] (1) A display (1), a coordinate output means (2) installed on the display surface of the display (1), and a display using the coordinates indicating the indicated position on the coordinate output means (2) as input information. (1) A scroll display device having a function of scrolling the displayed contents, characterized in that it is provided with means (6) for making the scroll speed have a non-linear relationship with the movement speed of the indicated position. Device. (2) The scroll display device according to claim 1, wherein the scroll speed has a cubic function relationship expressed by a polynomial with respect to the movement speed of the finger.