JPS5870273A - Indication of crt display graphic japanese character - 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 relates to a method for displaying kanji on a CRT display, and in particular, when the kanji to be displayed are simple and of few types, two character generators for displaying alphanumeric or kana characters are used. This invention relates to a CRT display kanji display method for displaying kanji characters.

When displaying conventional kanji on a VCR or T-display, the vertical and horizontal dots required to display one character are larger than those required to display alphanumeric characters or kana characters, so it is necessary to configure the character generator to match the kanji. Not only does the scale of the character generator become enormous, but when alphanumeric characters are displayed in this way, there is too much space between characters, which reduces the number of characters that can be displayed on one line, and the screen becomes cluttered and becomes inefficient. There was a drawback that it could not be used well. Another disadvantage is that in order to use the screen efficiently, the size of the character generator must be changed for alphanumeric characters, kana characters, and kanji characters, making the peripheral control circuitry complex.

The purpose of the present invention is to display kanji on a CRT display by using two character display spaces for alphanumeric characters and kana characters in the horizontal direction, thereby allocating character generators for two characters only to kanji. It is an object of the present invention to provide a method for displaying kanji on a CRT display that allows a screen containing kanji to be easily obtained by simply adding a special logic circuit. A CRT display characterized in that, based on the display space for one alphanumeric or kana character, a space for two VC characters in the horizontal direction is used and a character generator for two characters is used to display kanji characters. Kanji display method is obtained.

Next, embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, 1 represents the vertical and horizontal display pitch for two alphanumeric characters and kana characters on a CRT display; the vertical column pitch is 12 do, G, and the horizontal column pitch is 8 do, G.

Figure 2 shows the display range of alphanumeric characters and kana characters by diagonal lines, and one character is represented by 7 dots horizontally and 9 dots vertically. In FIG. 3, the display range of one Kanji character is indicated by diagonal lines, and one character is represented by 15 dots horizontally and 11 dots vertically. Figure 4 is an example of a display that specifically displays the display "rA2 horizontal". If only English and kana characters are to be displayed, it is sufficient to have a character generator with 7 x 9 = 63 bits per character. However, by expanding this somewhat, 8X11= for one character
Prepare an 88-bit character generator. Using two of these character generators, the left half of the kanji is displayed using the first character generator, and the right half of the kanji t-
The second character generator displays one kanji character.

As explained above, the present invention makes it possible to display a kanji character using two character generators by simply increasing the scale of the character generator for one alphanumeric character or kana character. It has the advantage of displaying all kanji characters mixed with kana characters without changing any peripheral control circuits including refreshers and memory.

[Brief explanation of drawings]

Claims (1)

[Claims] To display one kanji character, two characters are used horizontally based on the display space for one alphanumeric or kana character, and a character generator for two characters is used to display the kanji. Features: Toss CRT display kanji display method.