JPH04161982A - Picture image signal input method for color display device - Google Patents

Abstract

PURPOSE:To make correct inputting without much labor by drawing a picture image with colors corresponding to displayed colors on a picture-drawing plane having more of the number of dots than that of a picture plane, and then contracting and converting the picture image into a picture image, having the number of dots and arrangement same as the picture plane with a computer, to be signalized. CONSTITUTION:A width and a length of a picture plane 18 for drawing a picture are made integer (j) times (e.g. quadruple) respectively to enlarge the picture plane 18 for drawing a picture, making a large picture-drawing plane 19 of jpXjq dots. A picture image is drawn on the picture-drawing plane 19 by an operator utilizing a mouse, etc., after that a picture image, on which a CPU and a control device 13 of a computer 11 are drawn, is contracted and converted into a picture image of pXq dots and also signalized to be inputted in an IC card, and a color picture image is displayed on a picture plane 17 of a color display device 1. This saves labor and also enables correct inputting.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a method for inputting image signals such as characters and graphics to a dot matrix color display device using light emitting diodes and the like.

(Prior Art) FIG. 4 shows an example of a dot matrix color display device 1 used as a signboard or the like. In FIG. 4, 2 is a display device main body having a color screen, and the screen of this display device main body 2 is made of, for example, a light emitting diode (L).
ED) are arranged in a matrix as dots. Reference numeral 3 denotes a control device, and this control device 3 controls the display device main body 2 so that predetermined color images such as characters and figures are displayed on the screen according to the signals written in the IC card 4 inserted therein. It is something to control.

FIG. 5 shows an example of a conventional image signal input device 6. As shown in FIG. This image signal input device 6 writes signals to the IC card 4, and has a dot signal input panel 7 incorporated therein. This dot signal input panel 7 consists of a plurality of push buttons 8 arranged in a matrix to correspond to each dot on the screen. In other words, the dot signal input panel 7
One push button 8 corresponds to each square part constituting the matrix. In addition, in the drawing, there are 6 x 6 push buttons 8, but this is for simplicity.
Actually, there are about 16×16 pieces.

9 is a plurality of color specification buttons, and these color specification buttons 9
You can specify a color for each dot by turning it on or off. The colors that can be specified are, for example, red, green, and orange in order from the left color specification button 9, and when all the color specification buttons 9 are off, there is no light (black).

FIG. 6 shows an example in which an image to be input is decomposed into a dot matrix.

In the conventional image signal input method, a color image to be input is first created on paper, and then the created image is decomposed into a dot matrix as shown in Figure 6. , create a dot matrix diagram. Of course, each dot is colored. Next, the IC card 4 is inserted into the image signal input device 6, and the push buttons 8 corresponding to the colored dots in the dot matrix diagram are pressed.
At the same time, press one of the color designation buttons 9 according to the color of the dots in the dot matrix diagram.

As a result, the color tod signal of the image is input to the IC card 4. When the IC card 4 into which the signal has been input in this manner is inserted into the control device 3, a color image is displayed on the screen of the display device main body 2 in accordance with the color tod signal input into the IC card 4.

(Problem to be Solved by the Invention) However, in the conventional image signal input method, in order to decompose a color image original into a color tod matrix as shown in FIG. There was a problem in that a matrix diagram had to be created, which was time-consuming. For example, the relatively small screen 32x
Even with a 192-dot display device, 6144 dots had to be specified for each color on one screen, and creating a dot matrix diagram even for 5 to 10 screens required a great deal of effort.

Furthermore, the next operation, input using the signal input panel 7, required effort because the push button 8 and color designation button 9 had to be pressed many times. Along with this, many signal input panels 7 are only equipped with push buttons 8 that are approximately 16 x 1.6 dots due to dimensional constraints; for example, 32 x 19
With a two-dot display device, the screen had to be divided into 24 parts for input. Therefore, it is difficult to grasp the mutual relationship between the divided screens at the time of input, and there is a problem that input errors are likely to occur.

The present invention is intended to solve these problems, and aims to enable image signals to be accurately input to a color display device without much effort.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, an image signal input method for a color display device according to claim 1 of the present invention provides an image signal input method for a dot matrix type color display device to display an image on the screen of the color display device. When inputting the image signal to be displayed, an image is drawn on the computer display in a color corresponding to the display color on the screen of the color display device on a drawing surface that has more dots than the number of dots on the screen of the color display device. After that, the drawn image is reduced and converted by a computer into an image with the same number and arrangement of dots as the screen of the color display device, converted into a signal, and the signal of this image is input to the color display device.

Furthermore, in the image signal input method for a color display device according to the second aspect of the present invention, the number of dots in the vertical and horizontal directions of the drawing surface on the display of the computer is set to be an integral multiple of the number of dots in the vertical and horizontal directions of the screen of the color display device.

(Function) In the image signal input method for a color display device according to claim 1 of the present invention, first, an operator places an image on a drawing surface on the display of a computer that has more dots than the number of dots on the screen of the color display device. Draw an image. The image thus drawn is reduced by a computer to an image with the same number and arrangement of dots as the screen of the color display device, and converted into a signal. Then, the signal of the reduced-converted image is input to the color display device directly or via an IC card, and the color image is displayed on the screen of the color display device according to the input signal. Here, drawing is performed on a drawing surface with a larger number of dots than the number of dots on the screen of a color display device in order to make drawing easier. Coupled with the fact that this is done automatically by a computer, it saves time and allows for accurate input.

Furthermore, in the image signal input method for a color display device according to claim 2, the number of vertical and horizontal dots on the drawing surface on the computer display is an integral multiple of the number of vertical and horizontal dots on the screen of the color display device. Software procedures such as image reduction conversion and signal conversion become easier.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4.

The dot matrix color display device 1 includes the fourth
As shown in the figure.

FIG. 3 shows a computer 11 for creating a color tod matrix of an image to be displayed on the screen of the color display device 1 and converting it into a signal.

In FIG. 3, 12 is a color display such as a liquid crystal display board or CRT, 13 is a CPU and a control device, and the CPU and control device 13 are connected to a mouse, a light pen, an image scanner, etc. operated by an operator. It is possible to control the drawing on the display 12 and specify the color and brightness at that time, and
The generated signal can be output to the IC card 4.

When inputting a signal of an image to be displayed to the color display device 1, the color display device 1 is placed on a drawing surface having more dots than the number of dots on the screen of the color display device 1 on the display 12 of the computer 11. After drawing an image in a color corresponding to the display color on the screen, the computer 11 converts the drawn image into a signal with the same number and arrangement of dots as the screen of the color display device 1, and converts the image into a signal. is input to the color display device 1 via the IC card 4.

By the way, as shown in FIG. 1, generally, the entire display surface 16 of the display 12 such as a CRT is arranged in m columns in the horizontal direction.
There are n rows of dots in the vertical direction, and the total number of dots is xn. On the other hand, the screen 17 of the color display device 1 also has L
There are p columns of dots made of display elements such as EDs in the horizontal direction and q rows in the vertical direction, for a total of pxq dots.

If the image displayed on the screen I7 of the color display device 1 is to be drawn as is on the display 12 and transferred, the screen 18 of the same number of pxq dots as the screen 17 of the color display device 1 is used for drawing. (the hatched area in FIG. 1) is required on the display 12.

Here, if pxq is close to mxn, the display 12
Even if the number of dots on the screen 18 for drawing is pXq, it is possible to draw on the entire display surface 16 of the display 12 and directly transfer the image signal. However, in general, the number m×n of dots on the display 12 of the computer 11 is large, and the number pXq of dots on the color display device 1 used as a signboard is small.

- As an example, mXn is 640X400 = 25600
It is an O dot, and pXq is 96x32=3Dt2 dots. Therefore, if the number of dots on the screen 18 for drawing on the display 12 is pxq, the screen 18 for drawing will be small and drawing will be difficult.

Therefore, the drawing screen 18 is enlarged by multiplying the width and height of the drawing screen I8 by an integer j times (for example, 4 times as shown in FIG. 1), and
9.

Then, an operator draws an image on this drawing surface 19 using a mouse, a light pen, or the like. Thereafter, the CPU of the computer 11 and the control device 13 reduce and convert the drawn image into a pxq dot image, convert it into a signal, and input it to the IC card 4.

When drawing, a color corresponding to the dot display color (for example, red, green, yellow, black) on the color display device 1 is selected, and a color image is drawn on the drawing surface 19 using this color. At this time, the dot display color on the color display device 1 and the display color on the drawing surface 19 do not necessarily have to be the same color. For example, if the brightness of each dot on the screen j7 of the color display device 1 can be adjusted, the color can be adjusted by associating another color with the display color of intermediate brightness and drawing on the drawing surface 19 using this color. To enable a display device 1 to perform display with intermediate brightness. Furthermore, at each dot on the screen 17 of the color display device 1,
For example, if it is possible to display an intermediate color that is a combination of the display colors red, green, yellow, and black, and the brightness of each can be adjusted, a different color will be created for each combination of color and brightness including the intermediate color. correspond. Note that such correspondence is set by software in the CPU of the computer 11 and the control device 13.

In any case, after drawing, the color classification of the pXq dots is converted into a signal for input to the color display device 1. Here, an example of color classification and signals is shown below. In this example, the signal is a four-hit configuration.

Signal color coding 1100 Strong red 1000 Weak red 0011 Strong green 0010 Weak green 1111 Strong yellow 1110 Orange 1011 Reddish green 1010 Weak yellow Here, weak red, weak green, and weak yellow are the display colors of intermediate brightness, and orange, The medium color is reddish green. In the 4-bit signal, the first and third bits define the color, and the second and fourth bits define the respective brightness.

Furthermore, as described above, since the color image drawn on the jpXjq dot drawing surface 19 on the color display 12 is reduced to a pXq dot image and converted into a signal, the color image drawn on the jpXjq dot drawing surface 19 as shown in FIG. A region 20 consisting of a plurality of, for example, 2×2 dots is displayed on the screen 17 of the color display device 1.
Therefore, the presence or absence, type, and brightness of the color of one dot 2j of the color display device l are determined by some method from the color classification of the plurality of dots in the area 20. There is a need. Examples of such methods include the following.

(1) Among the colors of a plurality of dots belonging to the area 20, the color that is the most common is selected. If more than half of the dots have no color, the dots 21 are colorless (black).

(2) The presence/absence, type, and brightness of the color of the dot existing at the center of the area 20 or any specified position within the area 20 are taken as the presence/absence, type, and brightness of the color of the dot 21.

As mentioned above, if the number of dots in the vertical and horizontal directions of the drawing surface 19 on the display 12 is an integral multiple of the number of dots in the vertical and horizontal directions of the screen 17 of the color display device 1 in the same ratio both vertically and horizontally, the color of the dots 21 will be The software algorithms of the CPU and control device 13 that determine the presence/absence, type, brightness, etc. can be greatly simplified.

Through the above procedure, signals regarding the presence/absence of color, type, and brightness of each dot 2, which are generated by the CPU and control device 13, are input to the IC card 4. 1. By inserting this IC card 4 into the control device 3, a signal is input from the IC card 4 to this control device 3, and according to this signal, a color image drawn on the display 12 of the computer 11 is displayed. Color image is displayed on color display device 1
is displayed on the screen 17 of.

Note that the recording medium for inputting the image signals generated by the CPU and the control device 13 to the control device 2 of the color display device 1 is not limited to the IC card 4, but may be other various types such as a magnetic disk or an optical disk. A medium may also be used. In addition, the signals generated by the CPU and the control device 13 can be directly transmitted to the control device 2 of the color display device and displayed on the screen 17 of the color display device 1, or can be stored in another storage medium instead of the IC card 4. You may let them.

According to the above configuration, an image is drawn on the display 12 of the computer 11, and a signal to be input to the color display device 1 is automatically and directly generated from the drawn image by the computer 11. There is no need to create a color tod matrix diagram on paper from the original, and then press the push button 8 and the color designation button 9 to input a signal for each dot based on the diagram. Therefore, the effort and time required to create and input signals to the color display device 1 are significantly reduced.

Furthermore, since any drawing can be freely performed on the display 12 of the computer 11, it is no longer necessary to draw on paper, improving the quality of the image and reducing the time required to create the image.

In addition, it is easy to modify the image signal, and the time required to change and modify display contents can be shortened.

Furthermore, since the entire image is converted into a dot matrix on the display 12 of the computer 11, converted and converted into a signal in - times without dividing the entire image, it is easy to grasp the overall structure of the image, and by dividing the image into parts, This eliminates errors and the need to correct the balance of the entire image.

Moreover, since drawing is performed on the drawing surface 19 which has more dots than the number of dots on the screen 17 of the color display device 1, drawing on the display I2 is easy.

By the way, in the conventional image signal input device 6 as shown in FIG. It has been difficult to input a signal that allows each dot to be displayed with intermediate brightness or intermediate color.

On the other hand, according to the configuration of the embodiment described above, it is easy to create and signal an image using intermediate brightness or intermediate color.

〔Effect of the invention〕

According to the present invention, the following effects can be obtained.

According to the method of claim 1, a color image is drawn on a drawing surface having a larger number of dots than the number of dots on the screen of a color display device on the display of a computer, and then this drawn image is displayed on the screen of the color display device by the computer. Since the image is reduced in size and converted into a signal with the same number and arrangement of dots as the screen, and the signal of this image is input to the color display device, there is no need to create a dot matrix diagram on paper in advance, and the input In addition to being easy to operate, since the entire image is displayed on a large drawing surface, image signals can be accurately input to the color display device without requiring much effort or time.

Furthermore, according to the method of claim 2, the number of dots in the vertical and horizontal directions of the drawing surface on the display of the computer is made an integral multiple of the number of dots in the vertical and horizontal directions of the screen of the color display device. software procedures become easier.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention,
1 and 2 are explanatory diagrams showing the correspondence between the drawing surface on the computer display and the screen of the color display device, FIG. 3 is a block diagram of the computer that generates input signals to the color display device, and FIG. FIG. 4 is a block diagram of a color display device. 5 is a block diagram of a conventional image signal input device, and FIG. 6 is a dot matrix diagram of an image to be input to a color display device. 1...Color display device, 11...Computer, 12
... Computer display, 17. Color display device screen, 19. Display drawing surface. 11 Combi Kei'gu' 〆yu, 3 Zu Komame L Ward

Claims (2)

[Claims] (1) In the method of inputting the signal of the image to be displayed on the screen of the color display device to a dot matrix color display device, the number of dots on the computer display is larger than the number of dots on the screen of the color display device. After drawing an image on the surface in a color that corresponds to the color displayed on the screen of a color display device, this drawn image is reduced and converted by a computer into an image with the same number and arrangement of dots as the screen of the color display device and converted into a signal. An image signal input method for a color display device, which comprises inputting the image signal to the color display device. (2) The image signal input method for a color display device according to claim 1, wherein the number of dots in the vertical and horizontal directions of the drawing surface on the display of the computer is set to be an integral multiple of the number of dots in the vertical and horizontal directions of the screen of the color display device. .