JP3116902B2 - Handy terminal character display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for displaying characters on a small dot display device such as a hand-held terminal, and more particularly to a method for displaying characters on a liquid crystal used for a hand-held terminal.
It relates to the display of numbers, symbols, and the like.

[0002]

2. Description of the Related Art Heretofore, a liquid crystal portion of a liquid crystal display device used as a handy terminal display device displays alphabets, numerals, and kana, and kanji characters are rarely displayed. For example, in the case of inventory management in a warehouse, product codes and quantities are used as product names in stores, and similarly, product codes and quantities are used in shops as well as kana characters as necessary.

[0003]

In the conventional handheld terminal described above, it is very useful to input and display a product code and a quantity. However, in the product name, there was a problem in the display method in spite of a request to display Japanese (Kanji). To display kanji in addition to alphabets, numbers, and kana (hereinafter referred to as ANK characters), there are two types of ANK characters: 8 x 8 dots and 8 x 16 dots, and a minimum of 16 x 16 dots is required for kanji Therefore, it is difficult to display these characters on the same liquid crystal.

The present invention has been made in view of the above problems, and is a character display system for displaying a plurality of fonts having different numbers of fonts such as numerals and characters in a mixed manner on the same dot display device. The font structure has attribute data on the type of characters for displaying different numbers of dots, characters, and the like on the dot display device, and has attribute data on lines and digits for displaying on the dot display device. When displaying numbers, characters, etc., based on the attribute data by inputting the character code to be displayed,
Displays numbers, characters, etc. with different numbers of font constituent dots,
To delete double-width characters and kanji from multiple fonts
Contains the double-width characters displayed on the dot display device,
Characters that have a common character code for each character attribute
Handy-ter to erase all the blocks on the display unit
The gist of the present invention is a character display method of the terminal.

[0005]

According to the present invention, in order to display an ANK character and a Chinese character on the same dot display device, in particular, on a liquid crystal, an attribute relating to the display device is given to each character in addition to the font of each character, and each character is displayed. Erasing and overwriting are performed smoothly.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a state in which characters are displayed on a liquid crystal. Reference numeral 1 indicates a line number, and reference numeral 2 indicates a digit number. FIG. 2 shows the attributes of the displayed characters. Reference numeral 3 indicates a data bit number. In FIG. 1, a so-called double-byte number “1” is placed in column 0, row 0, and a double-width “A”, columns 2, 3 are placed in columns 1 and 0.
In rows 0 and 1, "kan" in double width and height is displayed.

"1" in column 0, row 0 occupies one block of 8.times.8 dots. Column 1, rows 0, 1 double height "A"
Occupies two blocks of 8 × 16 dots.
In addition, "kan" in columns 2, 3 and lines 0, 1 occupies four blocks. Here, for each of the characters "1", "A", and "Kan", the status of the 16-bit attribute data shown in FIG. 2 is shown. That is, the first four bits (15 to 12) represent the character type (dot type), and the next four bits (11 to 8) represent the liquid crystal row in FIG. In the remaining 16 bits,
The status of the digits of the liquid crystal in FIG. 1 and other statuses are stored.

First, the case of displaying characters will be described. The cursor is moved to the position where the liquid crystal is displayed, and the character code to be displayed on the spot is input. Therefore, the attribute data shown in FIG. 2 is created and stored in a memory (not shown), and is displayed at the position designated by the cursor. In the case of double-width characters, the character is displayed at the position where the cursor is designated and at the position connected to this position. For the case of kanji, the characters are displayed at the right, bottom and lower right connected to the position of the cursor. Characters are displayed in four blocks.

In the case of a double-width character, the attribute of the character is 2
A common code is given to the block and stored together with the display. Similarly, in the case of Chinese characters, a common block is given to four blocks and stored and displayed.

Next, the case of erasing the displayed characters will be described. There is no problem in the case of full-width characters, but in the case of double-width characters and kanji characters, the erasure is related to the designated position of the cursor. By displaying one of the blocks, all the blocks having a code common to the attribute of each character described above are deleted.

In the case of overwriting, there is no problem in the case of the same type (dot) as the currently displayed character. However, in the case of displaying double-width characters in double-height characters, double-width characters for kanji and double-height characters, If that block has been overwritten, other related blocks of the overwritten block are erased. In the present embodiment, the attribute data is not limited to 16 bits, but is limited to 16 bits if the data represents at least three types of information of character type, line, and digit. It does not do. In this embodiment, the case where the liquid crystal display device is used has been described. However, the present invention is naturally applicable to the case where a light emitting diode (LED) is used.

[0012]

As described above, according to the present invention, ANK characters, double-width characters and Chinese characters are displayed on a small display device such as a handy terminal in a good-looking manner, and the liquid crystal and overwriting are smoothly performed. It is done in.

[Brief description of the drawings]

FIG. 1 A state in which characters are displayed on a liquid crystal display device

FIG. 2 is a diagram showing attributes of displayed characters.

[Explanation of symbols]

 1 line number 2 digit number 3 data bit number

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G09G 5/30 G06F 15/02 G06F 17/21 G09G 5/26

Claims (1)

(57) [Claims] 1. A character display method for displaying a plurality of fonts having different numbers of font constituent dots such as numbers and characters on the same dot display device in a mixed manner. When having attribute data on the type of characters to be displayed on the dot display device and attribute data on lines and columns for displaying on the dot display device, and displaying numbers, characters, etc. on the display device,
By inputting the character code to be displayed, based on the attribute data, numbers, characters, etc. having different numbers of dots constituting the font are displayed, and double-width characters and kanji characters of a plurality of fonts are displayed.
When deleting, the vertical display displayed on the dot display
Character codes common to the attributes of double-byte characters and kanji characters
Erase all blocks of the dot display device with
A character display method for a handy terminal, comprising: