JPS60235195A - Graphic display unit - 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 [Field of Application of the Invention] The present invention relates to a graphic display device, and particularly to a graphic display device that displays a plurality of figures/shapes in multiple colors.

When displaying a blinking figure, the table of the figure.

The present invention relates to a graphic display device that controls blinking display in response to a display.

[Background of the invention]

Such graphic display devices usually include a refresh memory for specifying a graphic to be displayed, and data is read from this refresh memory.

The printed figure is plink-controlled by a plink control circuit. However, in conventional blink control, monochrome blinking, that is, figure blinking, is generally performed by repeatedly displaying/not displaying a color. Therefore, when a certain figure is displayed in multiple colors, if the figure is blink-controlled, the original color of the figure becomes monochromatic, making it impossible to distinguish the attributes of the figure.

For example, when using a graph ink display system to automatically design a multilayer printed board, consider displaying different colors for each layer. Here, it is preferable that patterns in multiple layers are each displayed in multiple colors, but when these patterns are blinked, it is impossible to determine which layer the blinking pattern belongs to using the above-mentioned single-color blinking technique. There is a drawback.

[Purpose of the invention]

An object of the present invention is to provide a graphic display device that can blink a part of a plurality of figures displayed in multiple colors without changing the display color of the figure. .

[Summary of the invention]

The present invention includes a first refresh memory for storing graphic data to be displayed, a plurality of color codes, and a refresh memory according to the color codes.

A conversion table for setting the display color of graphic data output from the memory, a D/A converter for D/A converting the output data of the conversion table, and an output signal of the D/A converter is displayed. In a figure/figure display device having a display device, a second memory for storing figure data of a figure to be blink-displayed which is arbitrarily selected from the figure data stored in the first refresh memory. Fresocy memory and
Whether or not output of the second refresh memory is possible and output.

Follows control data that controls whether links can be displayed.

and controlling the output of the second glue flexible memory.

A control means for validating the output of the conversion table described in 1-1 above when outputting graphic data to be displayed in a blinking manner.

It is constructed with Here, the color code stored in the converted pull can be rewritten under the control of the processing device. Further, the graphic data of the graphic to be displayed in a blinking manner and the control data are provided, for example, from a processing device.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a control block diagram of the graphic display device. In this figure, the shape of a figure to be normally displayed is stored in a refresh memory 101 consisting of a plurality of memory brains. Read in parallel...Sale, parallel/serial converter 10
3, where it is converted into serial data. This serial data becomes an address input to a color code conversion table 104 made up of high-speed storage elements. The color code conversion table 104 stores color codes that determine the display colors of graphics. This color code is set by a processing device (not shown) and transferred and stored by the processing device via data bus 206. Color code conversion table 1
The color code output of 04 is given to the D/A converter 105 and D
The signal is converted into a video signal by an A/A converter 105 and displayed on a star scan type graph ink display 106.

Note that the number of planes in the 1-inch reflex memory that stores normal display figures defines the address space of the color code conversion table 104, and the color code is changed.

The number of bits for one add in the conversion table 104 defines the number of display colors. For example, refresh memory 1
There are 6 planes of 01, and the number of pits () for one address in the color code/conversion table 104 is the display color 'R.
, G, and B each have 4 bits.

If this is the case, the optical color display will be two colors, of which 2.

Colors can be displayed simultaneously.

Next, the printer control unit 200 will be explained. .

In the blink control unit 200, a blink indicator, -1
The control register 107 is used to specify blink display figures.

Controls whether or not the output of the flexible memory 102 is output.

Holds control data. Also, blink display.

A control register 108 controls whether or not blinking is possible.

Holds control data. These control data are 1. .

The data is transferred from the processing device via the data bus 206 at any given time and set in these registers 107 and 108. The blink control signal 201 is a clock that determines the blink period, and is on the blink display side.

The output of the control register 108 and the blink control gate 202 are logically summed. The output of the blink control gate 202 is ANDed with the output of the blink display control register 107 by the blink control gate 203. As a result, it is understood that the output of the blink control gate 203 becomes a control signal that controls whether or not the output of the blink display refresh memory 102 is enabled and whether or not blinking is enabled.

The refresh memory 102 stores data defining the shape of a figure to be displayed in a blinking manner. The graphics to be displayed in a blinking manner are set by the processing device, and the data is transferred from the treatment device via the data bus 206 at an arbitrary time and written into the refresh memory 102. The graphic data to be designated as blink stored in the refresh memory 102 is read out in parallel in 8-bit units in synchronization with the scanning of the graphic display, and converted into serial data by the parallel/serial converter 109.

is converted to

The print-designated graphic stored in the refresh memory 102 is scanned and sent to the parallel/serial converter 10.
When the output of color code conversion register 107 is at a high level, the output control signal of color code conversion register 104 is changed by blink control game) 203 and 204. 207 becomes H level, the output of the color code conversion tape II) 104 is suppressed, and no display occurs. at the same time,.

The contents of the blink display control register 108 are blank.

If it is possible, that is, 1, the color code changes when the graphic specified in the refresh memory 102 is scanned.

A specified figure is blinked by a control signal 205° that controls the output of the conversion table 104. .

In other words, when the printer is turned on, it is a flexible memory.

The contents of 101 are displayed, and are not displayed when blinking off. This realizes a multicolor blink display.

Next, the operation will be explained with reference to FIGS. 2 to 4. First, a figure as shown in FIG. 2, for example, is written into each plane of the refresh memory 101 by the processing device via the data bus 206. Here, the refresh memory 101 has 6 branes, ie, RM#0 to RM#.
5, the output of RM#0 is LSB, and the output of RM#5 is MSB for the address input of the brown code conversion table 104.
Let it be B.

Also, addresses 0 and 1 in the color code conversion table 104
, 2.4, display color control data 000, FOO, O are sent from the processing device via the data bus 206, respectively.
FO and OOF are written. Here, the number of bits for one address in the color code conversion table 104 is 12 bits, and each of R, G, and B has 4 bits from the MSB.

As a result, the graphic display 106 displays a red filled rectangle, a green circle with a portion missing, and a blue triangle, as shown in FIG. The above is the normal operation, that is, when no blinking display is performed. Now, let us consider a case where certain figures, such as the above-mentioned rectangle and triangle, are controlled to blink without changing their display color. In this case, data similar to the quadrangles and triangles stored in the refresh memory 101 is transferred from the processing device via the data bus. Then, they are stored in the refresh memory 102 as shown in FIG. 3 in correspondence with the storage positions of the squares and triangles omitted in the bidirectional fresco memory 101. Subsequently,
Blink control data is transferred from the processing device via the data bus 206 and stored in the blink control register 107 as SS.
// .

■ Or is written. In other words, output is possible. Same.

1 is written to the blink control register 108.

I can stop. In other words, it is possible to blink. This will output - quadrilaterals and triangles, Graphites.

As shown in FIG.

The filled rectangle is a blinking red display/no display.

The display is a blinking display with triangles displayed in blue/no display.

As described above, according to this embodiment, multicolor printer display is possible by writing and specifying a desired figure in the refresh memory 102 for specifying plink display.

[Efficacy of invention]

According to the present invention, in a graphic display device that displays graphics in multiple colors, it is possible to perform link control by changing the display color of a certain graphic.

[Brief explanation of drawings]

FIG. 1 is a control block diagram of a graphic display device for explaining an embodiment of the present invention, FIG. 2 is a schematic block diagram for explaining the operation of the embodiment, and FIGS. 3 and 4 are Figures and figures to be displayed blinking. The figure which shows the example of a display. 101... Refreshco memory 102... Refresh memory for specifying blink display figures 105... 1)/A converter 106... Graph ink display 200... Blink control unit. Self-represented Patent Attorney Akio Takahashi Deputy Figure 4 Section J

Claims (1)

[Scope of Claims] 1. A first reflex memory for storing graphic data to be displayed, a plurality of color codes, and display colors of graphic data output from the reflex memory according to the color codes. A conversion table to be set, a D/A converter that converts the output data of the conversion table to D/A, and the D/A converter that converts the output data of the conversion table to D/A.
In a graphic display device having a display for displaying an output signal of an A converter, graphic data of a graphic to be displayed in a blinking manner, which is arbitrarily selected from among the graphic data stored in the first flexible memory, is stored. According to a second glue flexible memory and control data that controls whether or not the output of the second glue flexible memory is possible and whether a blink display is possible.
A graphic display device comprising control means for controlling the output of the second refresh memory and validating the output of the conversion table when graphic data to be displayed in a blinking manner is output. 2. The graphic display device according to item 1, wherein the color code stored in the conversion table can be rewritten under the control of a processing device. 3 Graphical data of the graphic to be displayed in a blinking manner. 2. The graphic display device according to claim 1, wherein the control data is provided by a processing device.・