JPS5841582Y2 - display device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a display device that can display a numerical value and the scale of the numerical value by disposing a scale display section on the upper left of each digit, and in particular effectively displays the scale display section. The present invention relates to an extremely easy-to-read and inexpensive display device that has a clock display and allows minute and second displays to be distinguished very naturally.

BACKGROUND ART Conventionally, electronic devices such as electronic desktop calculators with a clock function display both a clock display and a calculation display using a single display device.

In such display devices, in order to distinguish between calculation display and clock display, and to distinguish hours, minutes and seconds in clock display,
For example, some measures have been taken, such as providing a separate display section to separate hours, minutes, and seconds, or displaying a bar between hours and minutes, and increasing the interval between minutes and seconds.

However, the former method requires a separate display unit, making it impossible to use conventional calculation display devices as is, resulting in high costs; There were problems in terms of legibility, such as the distinction between minutes and seconds being unclear.

In view of the conventional problems associated with this invention, we focused on the fact that it is customary to use "'" and "〃" to distinguish when writing ordinary dialects and seconds, and effectively display the place value display part. By doing so, minutes and seconds can essentially be displayed separately using ``''' and ``〃'', making it possible to differentiate from calculation display and between minutes and seconds very naturally, making it very easy to read and inexpensive. The purpose of this invention is to provide a display device that provides a unique display device.

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

FIG. 1 is a top view showing the display element D' used in this example. In the center of the display element U there is a numeral element part a shaped like a Japanese character, and at the lower right of the element part a there is a round-shaped numeral element part a. There is a decimal point element section, and a comma-shaped scale element section C is located at the upper left of the numeric element section a.

In this display element D'r, numerical information is displayed in the numeric element part a, decimal point information is displayed in the decimal point element part, and scale information in three-digit divisions is displayed in the scale element part C.

By arranging a plurality of these display elements in parallel, a display body as shown in FIG. 2 can be formed.

This display unit serves both as an image display for the general calculation mode NORM and the time calculation mode HMS.

FIG. 2 is a circuit diagram showing the main parts of this embodiment.

In the same figure, a switch SW1 for switching between the general calculation mode NORM and the time calculation mode HMS, a decimal point register X that outputs a decimal point signal and its associated decoder XDC, and a scale signal generator PC that outputs a scale signal , a repetitive signal generator T that outputs a blinking signal, and gate circuits 01 to G8 that guide and control each output signal.
, a display register X for temporarily storing numerical information, a decoder DC related thereto, and a display body for displaying various information such as numerical values, decimal point, and scale.

Note that the switch SW1 is always set to the general calculation mode NO.
It is set to either RM or time calculation mode HMS.

In this embodiment, for the general calculation mode NORM, a decimal point signal from a decimal point register X is sent to the AND gate G1 via a decoder XDC, and a scale signal from a scale signal generator PC is sent to the AND gate G4. ing.

Also, AND gate G2 is used for time calculation mode HMS.
A timing signal T5 for displaying the hour symbol is sent to the OR gate G7, a timing signal T2 for displaying the minute symbol is sent to the AND gate G8, and a timing signal T for displaying the seconds signal is sent to the AND gate G8.

and a blinking signal from a repeating signal generator T.

The above timing signal T.

+ T2 y T5 repeatedly output waveform cycles of a constant width at different timings.

Also, the timing signal T. , T2. T. When the element part of the display body is to be lit by the timing signal T.

+ T2 r It blinks at a repeating cycle of T5, but the repeating cycle is actually very short and it appears to be stationary and lit.

Note that the timing signal T.

In the repetition signal generator T according to the above, the repetition period is large, so that when the element section of the display body is turned on, it appears to be blinking.

Now, a case will be described in which the switch SW1 is actually set to the general calculation mode NORM or the time calculation mode HMS.

First, when you want to input numerical values for general calculations, for example, by pressing the key 162315 on the keyboard (not shown), the numerical information is transferred to display register X and temporarily stored, and the numerical information is transferred to display register X. Decoder D related to
It is converted into a decimal number by C and transferred to the display, and the display of 162315 is executed on the display.

Here, since the switch SW1 is set to the general calculation mode NORM, the negative power supply terminal -V is connected in the general calculation mode NORM, and the theoretical input from the terminal -V becomes "0".

Further, the input is inverted by an inverter and inputted to an AND gate G1 and an AND gate G4.

Therefore, the decimal point signal necessary in the general calculation mode NORM is led from the AND gate G1 to each predetermined display element via the OR gate G3, and becomes, for example, 1623.15, which is led to T3 of the display element.

In addition, the scale signal is from Antogame 1/G4 to Orgame/
ToG.

When the light is guided to a predetermined display element through, for example, T4 of the display body, it becomes 162'315.

Next, in the same way as the numerical input operation above, enter the numerical value for time calculation,
For example, when inputting 162315, time calculation mode H
A ground terminal is connected to the MS, and the theoretical input from that terminal is "1".

Therefore, the timing signal T5 for displaying the hour sign is applied from the AND gate G2 through the OR gate G3 to a predetermined decimal point element section, that is, the decimal point element section T of the display body, and is turned on.

Next, the timing signal T2 for displaying the minute sign is applied to a predetermined scale element section C, that is, the scale element section C of T2 of the display body, through an OR gate G7, an AND gate G, and an OR gate G6, and is turned on.

Next, a timing signal T for displaying a seconds signal.

is guided to the AND gate G3 along with a blinking signal from the repeating signal generator T provided exclusively for seconds, and then is sent to a predetermined scale element section C, that is, the display body, via the OR gate G7, the AND gate G, and the OR game 1-06. T.

The signal is applied to the scale element section C for lighting in a blinking state.

As a result, it becomes 16.23'15' in this display.

In this way, since the second symbol of the time calculation mode HMS flashes, it is possible to distinguish between the minute symbol and the second symbol, and the numerical element part a displayed correspondingly can also easily be the information of minutes and seconds. I understand that.

Furthermore, the second symbol "..." is often used in place of the minute symbol "," and in the above time calculation mode HMS, the flashing seconds symbol gives the meaning "2.", making it difficult to use. good.

As described above, the display device of the present invention lights up the scale display between the minutes and seconds, and flashes the scale display near the lower digits of the seconds. The blinking display on the time display makes it easy to associate "〃" with minutes and seconds.
They can be distinguished by "l" and "〃".

Therefore, it is possible to very naturally distinguish between minutes, seconds, and calculation display, resulting in a display device that is very easy to read.

Furthermore, since it also serves as a position display section and no special display section is required, a conventional display device can be used as is, resulting in great effects such as low cost.

[Brief explanation of drawings]

Figure 1 is a top view showing the display element used in this example;
The figure is a circuit diagram showing the main parts of an embodiment of the present invention. U...display element, a...numeric element section,
b... Decimal point element section, C... Scale element section, SWl... Switch, X... Decimal point register, PC... Scale signal generator, T
...Repetitive signal generator, 01~G8...
・Gate circuit, D---display body.

Claims (1)

[Scope of utility model registration request] In a display device that has a place value display section on the upper left of each digit and can display a numerical value and the place value of that value, the place value display section between minutes and seconds display lights up when in clock mode. A display device characterized in that a scale display section near the lower digits of the second display blinks.