JPH01107293A - Character display control system - Google Patents

Abstract

PURPOSE: To make it possible to dynamically switch and display plural national languages together by selecting necessary characters out of plural character pattern groups according to the contents of a display memory and an extended display memory. CONSTITUTION: The display memory 2 and extended display memory 3 are memories in which character codes are written, and connected to a display control part 1 in parallel and further connected to a character pattern selection part 4. Further, character pattern groups 5-1-5-n are connected to the character pattern selection part 4, and a display part 6 such as a CRT is connected to the character pattern groups 5-1-5-n. One character pattern group is selected according to the contents of the extended display memory 3 and characters of different character pattern groups are mixed and displayed. Consequently, characters of different national languages are dynamically switched and displayed together.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display control method for a display device that displays characters, and particularly to a character display control method.

[Prior Art] A conventional character display control system has only one character pattern group, and only the characters within that character pattern group are displayed.

[Problems to be Solved by the Invention] The above-mentioned character display control method has one character pattern group, so it has the disadvantage that it is not possible to dynamically switch characters of different Japanese languages or to display them in a mixed manner. Was.

[Means for Solving the Problems] The present invention solves the above-mentioned conventional problems, and provides a character that can select a necessary character from a plurality of character pattern groups and display a mixture of characters from different character pattern groups. The present invention proposes a display control method, and in order to achieve this purpose, in a display device that displays characters, an extended display memory corresponding to a plurality of character pattern groups and a display memory, and the following features of the extended display memory are proposed.

It has a character pattern selection section that selects one character bar group depending on the content, and is configured to display a mixture of characters from different character pattern groups.

[Embodiment] Next, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 is a display control section, 2 is a display memory, 3 is an extended display memory, 4 is a character pattern selection section, 5-r to 5-n are character pattern groups, and 6 is a display section.

The display memory 2 and the extended display memory 3 are memories for writing character codes, and are each connected in parallel to the display control section 1 and further connected to the character pattern selection section 4. Furthermore, character pattern groups 5-1 to 5-n are connected to the character pattern selection section 4, and a display section 6 such as a CRT is connected to the character pattern groups 5-1 to 5-n. .

The operation will be specifically described below with reference to the drawings. first,
A case where the character patterns of character pattern groups 5-1 and 5-2 are displayed in a mixed manner will be described. Character pattern group 5-
1, the display control unit 1 writes the corresponding character code to the position on the display memory 2 corresponding to the position where the character is to be displayed, and further writes the character pattern group 5 to the corresponding position of the extended display memory 3. Write the code that specifies -1.

The character pattern selection unit 4 selects the character pattern group 5-1 based on the contents of the extended display memory 3, and selects the character pattern group 5-1.
1, a character pattern corresponding to the character code on the display memory 2 is output to the display section 6. As a result, the display section 6
The selected character will be displayed.

Displaying the characters of the character pattern group 5-2 is similarly performed by writing a code specifying the character pattern group 5-2 into the extended display memory 3.

It goes without saying that characters in other character pattern groups can also be displayed using the same procedure.

[Effects of the Invention] As explained above, the present invention provides a display device that displays characters, including an extended display memory corresponding to a plurality of character pattern groups and display memories, and a
It has a character pattern selection section that selects one character pattern group, and by displaying a mixture of characters from different character pattern groups, it is possible to select from among multiple character pattern groups depending on the contents of the display memory and extended display memory. This has the advantage that multiple languages, such as Japanese and Hangul characters, can be dynamically switched or mixed and displayed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. 1: Display control section 2: Display memory 3: Extended display memory 4: Character pattern selection section 5-1 to 5-n: Character pattern group 6: Display section

Claims (1)

[Claims] A display device that displays characters includes an extended display memory that corresponds to a plurality of character pattern groups and display memories, and a character pattern selection section that selects one character pattern group based on the contents of the extended display memory. A character display control method characterized by displaying characters of a pattern group in a mixed manner.