JPS59105686A - Independent varied cycle blink controlling character displaysystem for 3 primary signal - 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 The present invention expresses characters, symbols, nine figures, etc. using a color CI (color CRT display) as a dot configuration of three primary color signals, and uses a dot refresh method to express the three primary color signals. This invention relates to an independent blink control dot display system for three primary color signals, in which blink control is performed for each color in order to control the color by combining the three primary color signals.

[Prior Art] ≠ Entertainment Conventionally, the blink control dot display power type, which controls the color of characters, symbols, two figures, etc. in a dot configuration using a color CRT display device in this building by combining three primary color signals, has been used. There was something shown in the figure. FIG. 1 is a block diagram showing a conventional independent blink control dot display system for three primary color signals.

In FIG. 1, 2('' color CR, T (not shown)
Of all the dots that make up the screen, 3 is a red dot memory for red display, 3 is a blue dot memory for blue display, 4 is a green dot memo IJ for green display,
ILt is a blink dot instruction memory for enabling blink control instructions corresponding to each of the green dot memories 2 to 4, and 9 is a blink dot instruction memory for each of the above color dots.
Memories 2 to 4, a dot memory address signal for reading out the contents of the blink dot instruction memory 1 in synchronization with the raster scanning the color CRT screen; 11 is output by a dot memory address signal 9; Red color
12 is the same blue dot signal, 13 is the same green dot signal, 1o is the above color dot signal 11 to 13
Blink output when tζ is specified as blink.
This is a hit instruction signal. Also, 5 is a red blink period counter circuit that determines the red blink period, 6 is a blue blink period counter circuit, and 7 is a green blink period counter circuit, which is the screen that is output when one screen of the 14ij color CRT has finished refreshing. A refresh detection signal, 15 is a red blink periodic signal that follows the cycle of the red blinking system @:, 16 is also a blue blinking periodic signal, and 1.7 [-J is also a green blinking period] icon number. Furthermore, 8 is the blink bit instruction signal 10
．． an independent plink video signal generation circuit 18 which generates video signals for colors CR and T by using the dot signals 11 to 13 of each color and the blink period signals 15 to 17 of each color;
19 is a red video signal outputted from the independent blink video signal generation circuit 8, 19 is a blue video signal, and 20 is a green video signal.

Further, FIG. 3 is a waveform diagram of each part showing an example of color change of each dot according to the independent blink control dot display method ζζ of the three primary color signals in FIG. 1. In FIG. 3, 15a is the waveform of the red blink period signal 15, 16alt is the waveform of the blue blink period signal 16, and 17a is the waveform of the green blink period signal 17. 244j is the area where the dots are displayed in red, similarly, 25 is the area where the dot is purple, 2i1 is the area where the dot is white, 27 is the dot is yellow,
28 indicates a section in which dots are displayed in green, and 29 indicates a section in which dots are displayed in black. Therefore, color CR
The dots constituting the letters, symbols, figures, etc. displayed on the screen of T change from red to purple to white to yellow to green to black.

/, i)+; Next, the operation of the conventional block diagram shown in FIG. 1 will be described. Now, in order to display characters, symbols, 2 figures, etc. in a dot configuration on the screen of the color CR 'l:', the dot memory address signal 9 is output in synchronization with the raster on the screen of the color CRT. , this dot
From the memory and address signal 9ζ, the red dot signal 11 is output from the red dot memory 2, the blue dot signal 12 from the blue dot memory 3, or the green dot signal 13 from the green dot memory 4, and the blink dot signal is output from the address signal 9ζ. The instruction memory 1 outputs a blink bit instruction signal 1o for instructing blink control of the dot signals 11 to 13 of each of the three colors.

On the other hand, the red blink period counter circuit 5 is colored 〇R,
The screen refresh completion signal 14 output when the refresh operation of one screen of T is completed is counted, and a red blink period signal 15 of a certain determined period is output.

Similarly, the blue blink period counter circuit 6 outputs a blue blink period signal 16, and the green blink period count circuit 7 outputs a green blink period signal 17. Subsequently, the independent blink video signal generation circuit 8 converts the red dot signal 11 into a red video signal 18 under the control of the blink bit instruction signal 10 under blink control according to the period of the red blink period signal 15. , similarly,
The blue dot signal 12 is blink-controlled at the cycle of the blue blink period signal 16 and converted into a blue video signal 19.
Further, the green dot signal 13 is blink-controlled at the cycle of the green blink period signal 17, converted into a green video signal 20, and outputted to each color CRT.

Since the conventional independent blink control dot display system for three primary color signals is configured as described above, as shown in FIG. 3, the red blink period signal 15 the evening color blink period signal 16. Each waveform 15a to 17 of the green blink periodic signal 17
As is clear from the period a, the dots that make up characters, symbols, figures, etc. displayed on the color CRT screen can only display six colors: red, purple, white, yellow, green, and black. There was a drawback.

The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional ones.

In a color CRT display device for displaying symbol 1 figures, etc., a blink control mechanism is provided for each of the three primary color signals of red, blue, and green, and this link raccoon control mechanism performs independent blink control for each of the three primary color signals. and has a configuration in which the blink period of each color is changed to be different,
The dots are red and blue.

An embodiment of the present invention will be described below to provide an independent and different periodic flick control dot display power system for three primary color signals that can change to eight colors: green, purple, yellow, orange, white, and black. I will explain about it.

FIG. 2 is a block diagram showing an independent different periodic link control dot display power system for three primary color signals according to an embodiment of the present invention, in which the same parts as in FIG. A detailed explanation thereof will be omitted.

In FIG. 2, reference numeral 21 denotes a periodic control circuit forming a blink control mechanism that performs blink control on each of the three primary color signals. 22 is a red blink period counter drive signal that controls the red blink period counter circuit 5; 23 is a blue blink period counter drive signal that also controls the blue blink period counter circuit 6; and 24 is a green signal that also controls the green blink period counter circuit 7. This is a blink period counter drive signal.

Further, FIG. 4 is a waveform diagram of each part showing an example of color change of each dot by the independent and different periodic blink control dot display power type of the three primary color signals in FIG. 2. In FIG. 4, as a section in which dots are displayed in each color, 30, which does not exist in FIG. 3, indicates a section in which dots are displayed in blue, and 31 indicates a section in which dots are displayed in orange. As is clear from this, the dots that make up the characters, symbols, etc. displayed on the color CRT screen change in eight colors: red → blue → purple → green → orange → yellow → white → black → red. You can see how the images are displayed in a circular manner.

Next, the operation of the block diagram of the embodiment of the present invention shown in FIG. 2 will be described. The period control circuit 21 shown in FIG. Also, a blue blink period counter drive signal 23 with a period twice that of the screen refresh end signal 14 is outputted to the blue blink period counter circuit 6.
Output to. Also, the screen refresh end signal 14-4
A green blink period counter drive signal 24 having a double period is output to the green blink period counter circuit 7. Next, the red blink period counter circuit 5 outputs a red blink period signal 15 having a certain determined period. Similarly, the blue blink period counter circuit 6 outputs the blue blink period signal 16, and the green blink period counter circuit 7 outputs the green blink period signal 17. Here, the red blink period signal 15 and the green blink period signal 17 are output. Blue blink periodic signal 1
The ratio of each period of 6 and the green blink period signal 17 is 1:2.
:4. Each of the above three color blink period signals 15 to 1
7, the independent blink video signal generation circuit 8 generates a red video signal 18 and a blue dot signal under the control of a blink hit instruction signal 10, a red dot (M number 11, a blue dot signal 12, and a green dot signal 13). A video signal 19 and a green video signal 20 are generated and outputted to a color CRT.

2-2 In the above embodiment, the red flick periodic signal 15 and the blue flick period signal 16 and the green flick period signal 17 are divided so that the ratio of each period is 1:224, but this However, the periods may be different from each other, and the same effects as in the above embodiment can be achieved.

In addition, in the above embodiment, the blink control tζ for each dot is
However, the present invention is not limited to this, and it is also possible to perform blink control for a plurality of dots, such as every two dots or every four dots, and the same effects as in the above embodiment can be obtained.

Effect of half-tone light 1 As described above, according to the independent different periodic link control dot display power method of three primary color signals according to the present invention, characters, symbols, nine figures, etc. can be displayed on a color CRT display device by dot configuration. The system is equipped with a blink control mechanism that can control the different blink cycles of independent dots for each of the three primary colors red, blue, and green.
This has an excellent effect in that an extremely beautiful display can be obtained in which the dots forming the figures etc. automatically change and cycle through eight colors.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram showing a conventional independent blink control dot display power formula for three primary color signals, and FIG. 2 shows an independent different periodic flick control dot display power formula for three primary color signals, which is an embodiment of the present invention. 3 is a block configuration diagram, and FIG. 3 is a waveform diagram of each part showing an example of the color change of each dot by the independent blink control dot display power formula of the three primary color signals in FIG.
FIG. 6 is a waveform diagram of the % portion showing an example of the color change of each dot according to the independent and different periodic link control dot display method of the three primary color signals in the figure. 1... - Blink dot instruction memory, 2 - Town red dot memory, 3... Blue dot memory, 4 -...
... Green dot memory, 5... Red blink period counter circuit, 6... Blue blink period counter circuit, 7... Green blink period counter circuit,
8--Independent blink video signal generation apposition, 21--
...Periodic control circuit. In addition, the same reference numerals (indicate the same or equivalent parts) in the figures. Agent Makoto Kuzuno - Go to Figure 1 and Figure 2

Claims (1)

[Claims] In a color CRT display device that displays characters, symbols, two figures, etc. in a dot configuration and controls colors by combining three primary color signals of red, blue, and green using a dot refresh method, the three
A blink control mechanism is provided for each of the primary color information signals, and the blink control mechanism is configured to perform independent dot blink control for each of the three primary color signals, and each blink period of the three primary color signals is different. An independent different periodic blink control dot display power type for three-component signals, characterized in that: