JPH1063220A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display graphics and character whose sizes are different from each other in addition to character information with a simple constitution. SOLUTION: A dot matrix unit with 6 rows and 8 columns is formed by adding the dot stringe 4c of one line at the right side and the lower side of the rectangular dot matrix unit 4b with 5 rows and 7 columns displaying a regular font on a display. Dot matrix units like this are arranged without a gap in 3 rows and 10 columns. Thus, graphics and characters whose sizes are different from each other can be displayed in addition to the character information by specifying the displaying of regular size fonts prepared in a font ROM and fonts of 6 rows and 8 columns in the dot matrix unit of a prescribed place of this display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying a fixed font in dot matrix units, and more particularly to a display device suitable for a mobile communication device.

[0002]

2. Description of the Related Art In a conventional display device for displaying a fixed font of a dot matrix, for example, dot matrix units 4a, 4a... Of 7 rows and 5 columns are arranged in a matrix as shown in FIG. The character information is displayed by designating the display unit of the font ROM by a code in the dot matrix unit 4a at a predetermined location of the display 4). At this time, a portion having no dot is provided so as not to be adjacently illegible, and characters to be displayed in adjacent dot matrix units 4a, 4a.

[0003] Therefore, it is only possible to display fonts stored in the driver ROM in advance at the display position.
Characters and figures using multiple digits or multiple lines could not be displayed.

In the above display device, the size of characters to be displayed is limited to the size of the dot matrix unit 4a of the display 4. When a double-width character or a quadruple-width character is displayed, since there is a gap between adjacent dot matrix units, the character becomes a broken character as shown in FIG. 9A or FIG. There was a drawback that it would be difficult.

[0005] Japanese Patent Application Laid-Open No. 8-79364 discloses that dots are arranged on a display without gaps, for example, 7 dots vertically.
A display device that displays a small font of 5 dots horizontally and a large font of 15 dots vertically × 8 dots horizontally has been proposed. The small letter size used for the display unit of a general mobile phone currently on the market is the small font size of 7 dots vertically by 5 dots horizontally. According to this display device, large fonts can be displayed in an unbroken state. However, when characters / graphics are spread over two or more dot matrix units, that is, there is no disclosure of double-width or quadruple-size characters / graphics display. It is not possible to adopt a display control method of specifying and displaying an arbitrary font in an arbitrary location above,
There was a problem that the control device became complicated.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and has as its object to provide a simple control method for displaying characters and graphics having different sizes on a display. It is an object of the present invention to provide a display device that can display a location.

[0007]

A display device according to the present invention comprises:
In a display device for designating display of an arbitrary font in the dot matrix unit at a predetermined location on a display in which dot matrix units for displaying fonts are arranged in a matrix, a gap between adjacent dot matrix units with respect to the number of dots in the vertical and horizontal directions of the fixed font is determined. The display includes a display having a dot matrix unit in which the number of dots is increased so as to be filled, and a font ROM having the number of dots corresponding to the dot matrix unit in which the number of dots is increased.

In the display device, the font ROM may include a display unit of a graphic or a graphic and character portion.

Further, in the display device, a dynamic figure is displayed by changing a figure to be displayed with the passage of time.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a portable telephone to which the display device of the present invention is applied will be described with reference to the drawings. FIG. 1 is a block diagram showing a mobile phone having a display device to which the present invention is applied. The transmission / reception circuit 1 shown in the figure includes a speaker and a microphone, and performs transmission / reception operations under the control of the microcomputer 2. The microcomputer 2 operates the operation keys 6 according to a program written in the ROM 8.
It operates according to signals from the transmitting / receiving circuit 1 and controls the transmitting / receiving circuit 1 and the LCD driver 3. The microcomputer 2 uses the RAM 7 as a temporary storage memory.

The LCD driver 3 is controlled by the microcomputer 2 and converts an arbitrary font in the font ROM 5 to L.
It is displayed at the designated location on CD4. The LCD 4 has a fixed figure display section arranged at the top and a font display section arranged at the bottom. The fixed figure display unit displays a certain figure at a certain place, and the structure of the font display unit is shown in FIG.
Shown in 4b shown in the figure is 5 lines 7 displaying a fixed font.
It is a rectangular dot matrix unit of columns, and a dot matrix unit of 6 rows and 8 columns is formed by adding one dot column 4c to the right and lower sides of the dot matrix unit 4b. Such dot matrix units are arranged without gaps in 3 rows and 10 columns.

The display contents of the fixed figure display section above the font display section will be sequentially described from the left side. “Antenna mark and bar graph” indicates reception sensitivity by the number of bar graphs. When "out of service area" is displayed, it indicates that it is not within the reception range. “Rm” indicates whether or not the network of the contract telephone company is used by lighting or blinking. "Kana" indicates that the key input is a kana character. "E" indicates that the key input is an alphabetic character. "Hold" indicates that the call is on hold. 3 between vertical bars
One block indicates the amount of battery consumption by the number of blocks.

FIG. 3 shows a mode in which the reception volume can be changed during standby by operating an up / down key provided on the mobile phone, and the level display of the reception volume is displayed on a font display unit. A bar graph is displayed using a matrix unit of 2 rows and 2 columns, and the reception volume of the mobile phone is displayed. In this case, the font ROM 5 includes fonts for displaying the upper right, lower right, upper left, and lower left portions of the illustrated bar graph. FIG. 4 shows a case where a character larger than a standard character is displayed using the dot matrix unit in 2 rows and 10 columns.
In this case, each font for displaying the illustrated character portion is included in the font ROM 5. Thus, multiple lines,
Enlarged characters and pictograms can be displayed at any digit using a plurality of digits or both.

FIG. 5 shows a part of the contents of the font ROM 5. The upper address is shown in the horizontal direction of the cell shown in the figure, and the lower address is shown in the vertical direction. For example, B-1, B-2, B
At each address of -3, the letters A, I, and C are drawn in a dot matrix of 5 rows and 7 columns. As described above, since the standard font has five rows and seven columns, when displaying the characters of the standard font side by side, there is a gap between them, and the characters can be displayed in a separated state. Also, the dot on the sixth line can be used as a cursor.

At upper addresses 8- and 9-, character portions are drawn in a dot matrix of 5 rows and 8 columns. Upper address E
In-and F-, figures or characters are drawn in a dot matrix of 6 rows and 8 columns. Upper addresses 8-, 9-, E
A combination of a plurality of dot matrix units using the-and F- fonts can be used to display characters and figures larger than a fixed form. When large characters shown in FIG. 4 are displayed in a predetermined arrangement, fonts of a predetermined upper address and a predetermined lower address are displayed in combination.

FIGS. 6 and 7 show display examples of the display device of the portable telephone. In the figure, a portion surrounded by a rectangle having the same shape is a display screen. FIG. 6 shows display contents when the power is turned on. In A, all the dots of the fixed figure display section and the font display section are not lit before the power is turned on. When the power is turned on, as shown in B, all the dots on the fixed figure display section and the font display section are turned on for 0.5 seconds.

Next, as shown in C, all the dots on the fixed figure display section and the font display section are turned off for 0.5 seconds. Further, the indications D to I are sequentially performed for the time written on the right. At this time, the graphic display can be displayed as if it were dynamic by controlling the display time of each of the displays D to I shortly by a microcomputer. The graphics in the font display section of D, F and H are displayed by combining fonts of upper addresses E- and F-lower addresses 0 to 5. The figure on the right side of the fixed figure display section displays the amount of battery consumption. After the display of I, all dots in the font display section are turned off, as in J, to display a standby state.

FIG. 7 shows display contents at the time of an incoming call. A
Is a standby state display indicated by J in FIG. When there is an incoming call, the display of BE is switched at intervals of 0.2 seconds,
Since the phone graphic is displayed like a moving image, when a call arrives, you can not only see the ringer ringing but also the dynamic display that indicates it, if the ringer ringing is not set, the vibration (vibration) mode Even if
The user can feel that a call is being received by either vibration or dynamic display.

Note that the telephone figure is composed of upper addresses E-, F-,
The fonts of lower addresses C to F are displayed in combination. When a call is made by key operation, F is displayed, and when the call is ended by key operation, A is displayed on standby.

As described above, by combining the fonts built in the display driver in advance and the arrangement of the display elements, a normal display using the conventional fonts can be performed. By using a character font expanded one dot at a time to the right or left, enlarged elements, pictographs, or fonts displayed temporally can be switched, and dynamic elements can be displayed.

The display device of the embodiment adds a 5 × 8 dot or 6 × 8 dot font to the conventional 5 × 7 dot fixed font ROM, and increases the transmission information unit of the LCD driver by one bit. Well, hardware and software can be configured very easily.

Although the embodiment is constructed as described above, the invention is not limited to this. For example, a fluorescent display tube can be used for the display instead of the LCD.

[0023]

According to the display device of the present invention, in addition to the character information, figures and characters having different sizes can be displayed with a simple structure.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a mobile phone having a display device to which the present invention is applied.

FIG. 2 is a plan view showing a display portion of the display device.

FIG. 3 is a partial plan view showing a display state of the display.

FIG. 4 is a partial plan view showing another display state of the display.

FIG. 5 is a diagram showing a part of a font in a font ROM of the display device.

FIG. 6 is a diagram showing a display state of a display when the power of the mobile phone is turned on.

FIG. 7 is a diagram showing a display state of a display at the time of an incoming call of the mobile phone.

FIG. 8 is a plan view showing a display of a conventional display device.

FIG. 9 is a partial plan view showing a display state of the display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmission / reception circuit 2 Microcomputer 3 LCD driver 4 LCD 5 Font ROM 6 Operation key 7 RAM 8 ROM

Claims (3)

[Claims] 1. A display device for designating an arbitrary font to be displayed in a dot matrix unit at a predetermined location on a display in which dot matrix units for displaying fonts are arranged in a matrix, wherein dots adjacent to the number of vertical and horizontal dots of a standard font are displayed. A display device comprising: a display having a dot matrix unit in which the number of dots is increased so as to fill a gap in a matrix unit; and a font ROM having a number of dots corresponding to the dot matrix unit in which the number of dots is increased. 2. The display device according to claim 1, wherein a display unit of a figure or a figure and a character portion is added to said font ROM. 3. The display device according to claim 2, wherein a dynamic graphic is displayed by changing the graphic to be displayed over time.