JPS6217237B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display device having a display section consisting of, for example, so-called 7 segments.

[Conventional technology]

For example, so-called "7 segments" is widely known as a device that displays characters and numbers by arranging a plurality of display segments in a predetermined pattern. These 7 segments each light up independently.
For example, rectangular display segments that can be turned off are arranged in the shape of an "8", and at least one of these seven segments is selectively driven to turn on to display the numbers from "0" to "9". Numbers, "A", "b"
It displays a part of an alphabet such as "-" or a symbol such as "-". One or more segment display elements such as these 7 segments are provided as a display section, and a decoder circuit, display drive circuit, etc. for converting an input signal into a signal suitable for display is provided.
A display device is configured.

By the way, such display devices are used in electronic watches,
It is often used in combination with electronic equipment such as tape recorders, players, amplifiers, and tuners, or incorporated into electronic equipment such as video tape recorders and cassette tape recorders with radios, and displays many types of data with a single display device. It is necessary to do so.

[Problem that the invention seeks to solve]

By the way, when displaying multiple types of data on one display device, it is important for the user to be able to clearly and easily distinguish the type of data currently being displayed. When a display element that displays numbers is used, it is difficult to obtain data type discrimination information only from the 7-segment displayed portion.
For this reason, conventionally, a configuration has been used in which an auxiliary character display area is provided in the vicinity of the 7-segment arrangement position in the display section, and the type of display data is displayed using this character display area.

However, as the number of types of data to be displayed increases, it becomes necessary to display a large amount of information in the character display portion, etc., requiring a large display area or making it necessary to reduce the size of displayed characters. Here, if we take into account that the price of the display section generally increases as the display area increases, and that the text display section above is a part that performs auxiliary display, it is important to keep in mind that the area of the text display section, etc., should not be reduced. It is not desirable to make it wide. Furthermore, if the characters displayed in the character display section or the like are made smaller, it becomes difficult for the user to confirm the type of data.

Furthermore, when the type of data being displayed is displayed in characters or the like, it is troublesome to read and misunderstandings are likely to occur, so it is desired to display the data in a form that is visually clear and easy to distinguish.

In view of the above-mentioned circumstances, the present invention provides a display device capable of displaying data in a visually clear and easy-to-discern display format including data type information using a segment display element such as a 7-segment display element. With the goal.

[Means for solving problems]

That is, the display device according to the present invention has a display section that displays characters or numbers using a plurality of segments, and a display section that is switched by a control signal to display characters or numbers on the display section. The present invention further includes a decoder circuit that causes the display section to perform moving display by sequentially setting two or more segments among the plurality of segments into a display state or a non-display state.

Here, the display section includes, for example, at least one
The display device is composed of segment display elements such as 7 segments. In addition, the overall shape of the segment used for moving display is as follows:
For example, a loop shape consisting of the outermost peripheral portion of seven segments of multiple digits, a straight line shape consisting of segments continuous in the arrangement direction of each seven segments, etc. can be considered. Furthermore, the above-mentioned display state and non-display state correspond to, for example, the on state and off state of LEDs (light emitting diodes), and segment display elements can be used not only for the above LEDs but also for LCDs (liquid crystal display elements), plasma displays, etc. can.
Further, the moving display means a display in which the lighted (display state) position or the lighted out (non-display state) position visually moves.

[Effect]

Therefore, the display unit consisting of 7 segments etc. can not only display numbers, characters, etc., but also display moving images that can be visually clearly distinguished.
A wide variety of data can be easily displayed, and the moving display allows the player's rotational deviation, tape running, etc. to be confirmed at a glance.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, a display device using a display system that centrally displays display data from a plurality of electronic devices on one display device will be described below with reference to the drawings.

First, FIG. 1 shows a plurality of electronic devices, for example, five types of devices including a clock device 1, a tuner 2, a tape recorder 3, a player 4, and an integrated amplifier 5, using a display device 30 according to an embodiment of the present invention. A display system is shown for displaying respective display data from. Here, the clock device 1 is sufficient if it simply performs the operation of measuring time, and the clock device 1 itself does not require a display section. A time data signal is output from the output terminal 6 of this clock device 1. Next, Chuyuna 2
has only a selected frequency display section 7, and a desired frequency is selected by rotating a tuning knob 8, which is an operating means. The output terminal 9 of the tuner 2 outputs an electrical audio signal obtained by detecting and amplifying the received radio wave signal, and this audio signal is sent to the integrated amplifier 5. The tuner 2 also has an output terminal 10 for outputting a tuning level data signal, and further has an output terminal 11 for outputting a signal indicating that a human hand has touched the tuning knob 8. The cassette tape recorder 3 is a so-called cassette deck, and an input/output terminal (or recording/playback terminal) 26 is connected to a tape connection terminal of the integrated amplifier 5. This cassette tape recorder 3 has recording,
Operation buttons 12 and 13 are provided for selecting various operation modes such as playback, fast forward, and rewind, and a tape counter signal for displaying the tape position in each of these operation modes is output from a data signal output terminal 14. It is being output. Also, an output terminal 15 that outputs a signal that detects a human hand touching the recording button 12 among the operation buttons 12 and 13;
and other play, fast forward, rewind buttons 13
It has an output terminal 16 that outputs a signal that detects contact with a human hand. Next, player 4
A reproduced signal output terminal 17 is connected to the integrated amplifier 5. A rotation deviation signal of the turntable 18 of the player 4 is outputted from a data signal output terminal 19, and a signal detecting contact of a human hand to the rotation speed switching button 20 is outputted from an output terminal 21. The integrated amplifier 5 includes the tuner 2, tape recorder 3, and player 4.
Amplify the electrical audio signal from the speaker terminal 2
I am sending it to 2. A level signal for displaying the volume level of this audio signal is sent to the data signal output terminal 2.
3, and the volume knob 2
A signal that detects the contact of a human hand to 4 is output from the output terminal 25.

Here, in order to detect the touch of a human hand to the knobs 8, 24 and buttons 12, 13, 20, which are the operation means of the devices 2 to 5, for example, the touch of the human hand is detected as a change in capacitance. However, the operating means may include a touch switch that generates an ON/OFF switching signal. In this case, the touch electrodes of the touch switch correspond to the knobs 8, 24 and buttons 12, 13, 20, and a touch is detected just by touching these knobs or buttons 8, 12, 13, 20, 24 with a human hand. The signal is output terminal 1
1, 15, 16, 21, 25. In addition, the operation buttons 12 and 13 of the tape recorder 3
Or, as the rotation speed switching button 20 of the player 4,
If a touch switch is used, this contact detection signal may be sent as is to the output terminals 15, 16, and 21.

Next, the display device 30 that displays each display data from these devices 1 to 5 will be explained. The data selection circuit 31 of the display device 30 has output terminals 6, 1 of the devices 1 to 5, which are the data output devices.
Display data signals from 0, 14, 19, and 23 are being sent. This data selection circuit 31 is a circuit that selects data to be displayed among the five types of devices 1 to 5, and the selected data is sent via a display decoder circuit 32 and a display drive circuit 33. , is sent to the display section 34. The display unit 34 generally uses a 7-segment display composed of lamps, LEDs (light emitting diodes), or LCDs (liquid crystal displays), but may also include plasma displays, CRTs (cathode ray tubes), etc. A display or the like may also be used.

That is, as shown in FIG. 2, for example, the display surface of the display unit 34 includes, for example, 7 segments 35A to 35D of 4 digits for displaying numerical data, and a character display unit that indicates the display content (type) of data. 36A to 36G.
Each of the four 7-segments 35A to 35D is constructed by arranging, for example, seven bar-shaped display segments a to g in a figure 8 shape, like the 7-segment 35 in FIG. By selectively displaying (lighting up) at least one of the seven segments a to g, "0" to
It displays the number "9", etc. The character display units 36A to 36G include, for example, a display unit 36A for displaying the characters "TIME" while displaying time data from the clock device 1, and a display unit 36A for displaying the characters "TUNER" while displaying the tuning level from the tuner 2. Display unit 36B for displaying characters, "PLAYER", "AMP",
Display units 36C to 36F are provided for displaying characters such as "TAPE" and "REC", respectively, and when displaying the tuning level of the tuner 2 and the volume level of the integrated amplifier 5, the units are A display unit 36G is provided for displaying "dB (decibel)" at the same time.

Further, the display device 30 is provided with a priority circuit 37 and a data control circuit 38. The priority circuit 37 includes output terminals 1 of each device 2 to 5.
Operation detection signals from 1, 15, 16, 21, and 25 are being sent. This priority circuit 37 is a circuit for determining which device is to display the function when two or more operation detection signals from the devices 2 to 5 are input at the same time. The data control circuit 38 controls the data selection circuit 31 and the display decoder circuit 32 in accordance with the output signal from the priority circuit 37.

Here, the decoder circuit 32 outputs 7 segments 35A to 3 of 4 digits according to an input signal of display data that can be displayed as normal numbers or a part of alphanumeric characters.
By driving at least some of the display segments of the 5D to turn on or off, a pattern of numbers, letters, etc. with a stationary lighting position or unlit position is visually displayed, and player rotation deviation and A display in which at least a portion of the display segments are sequentially blinked in response to a moving display input signal for displaying the tape running status, etc., so that the lighting position or the lighting off position visually moves. It is.

In the display system configured as described above, the tuning knob 8 of the tuner 2, the operation buttons 12 and 13 of the tape recorder 3, and the player 4
When neither the rotation speed switching button 20 nor the volume knob 24 of the integrated amplifier 5 is operated, only the clock display signal from the clock device 1 is sent to the display section 34. At this time, the display unit 34 displays the current time using 4-digit 7 segments 35A to 35D, and also displays the display content (type).
The display unit 36A displays the characters "TIME" indicating the time.

Next, when the tuning knob 8 of the tuner 2 is manually operated to perform a channel selection operation or simply touched with the hand, a signal detecting this operation is sent from the output terminal 11 to the display device 30. At this time, the data control circuit 38
and sends a signal to data output terminal 10 of tuner 2.
Only the tuning level signal from the decoder circuit 32 is sent to the next decoder circuit 32. The decoder circuit 32 converts the tuning level signal into a signal for 7-segment display, and causes the 7-segments 35A to 35D of the display section 34 to display numbers via the drive circuit 33. Further, a signal from the data control circuit 38 is also sent to this decoder circuit 32. This signal causes the decoder circuit 32 to output the character display unit 36 of the display section 34 via the drive circuit 33.
B and 36G are made to display the characters "TUNER" and "dB" respectively.

Similarly, in response to the operation of each device 3 to 5, the characters and display data of the corresponding device are displayed respectively. By using the seven segments 35A to 35D, it is possible to visually display a display in which the lighting position or the lighting off position moves.

That is, for example, when the rotation speed switching button 20 of the player 4 is operated, the data output terminal 1
9 outputs a rotational deviation signal of the turntable 18. This rotational deviation signal is a signal representing the magnitude of the actual rotational speed relative to the reference rotational speed, that is, the magnitude of the rotational speed. In order to display this data signal on the display unit 34, for example, as shown by the solid line in FIG. By doing so, it is possible to visually display that the lighting position (or the lighting extinguishing device) rotates. For example, Figure 5A,
B and C indicate how the display changes over time; when the display changes in the order of A, B, and C, the rotation is clockwise, and when the display changes in the order of C, B, and A, the rotation is counterclockwise. Display the rotation around each. In this case, for example, when the actual rotation speed is higher than the reference rotation speed (faster rotation speed), the clockwise rotation is displayed, and when the actual rotation speed is smaller (lower rotation speed), the counterclockwise rotation is displayed. The rotational deviation of the turntable 18 can be clearly recognized by displaying the rotational speed and by stopping the rotation of the rotational display when the reference rotational speed and the actual rotational speed match. That is, since the rotational deviation, which was conventionally displayed using a strobe or the like, is displayed on the display unit 34, it is easy to see, and the rotational deviation can be confirmed more easily.

In the specific example shown in FIGS. 4 and 5 above, the outermost peripheral portions of the 4-digit 7 segments 35A to 35D, that is, segments a, d, e, f of the 7 segments 35A, and the segment a of the 7 segments 35B. , d, the loop-shaped (annular) portion consisting of the segments d, d of the 7-segment 35C and the segments a, b, c, d of the 7-segment 35D are used to display rotational movement. Shapes can be used. For example, in FIG. 6, each of the 7 segments 35A to 35
Each center segment g of D is used to form a relatively small loop shape, and the segments used to form this small loop shape are:
Segments a, f, g, 7 of 7 segments 35A
These are segments a, g of the segments 35B, segments a, g of the 7 segments 35C, and segments a, b, g of the 7 segments 35D. Also,
As shown in FIG. 7, the rotational display as described above is performed using the smallest loop shape in any one 7 segment 35, for example, a substantially square loop shape made up of segments a, b, f, and g. The specific display form at this time is, for example, the eighth
It will look like Figures A to D. In this case, as time passes, when the display changes from A in Figure 8 to B, C, and D, the clockwise rotation changes, and vice versa, from D in Figure 8 to C, B, and A. Sometimes each counterclockwise rotation is visually perceptible. Furthermore, in the rotating display form shown in FIGS. 4 and 5 described above, as shown in FIG. , a linear movement display may be performed in which the illuminated position or unlit position moves to the right or left in the figure.

The movement display as described above can be used not only to display the rotational deviation of the player 4 but also to determine the tape running direction and running speed (constant speed or high speed) of the tape recorder 3. In this case, player 4
For example, the rotational deviation of the player 4 is displayed in the display format shown in FIGS. 4 and 5, or in the display format shown in FIG. 6. The tape running state of the tape recorder 3 may be displayed in the display format shown in FIGS. 7 and 8 or in the display format shown in FIG. 9. Furthermore, in order to display the tape running state of the tape recorder 3, segments of the pattern shown in FIG. 10, which is a combination of the pattern of FIG. 7 and the pattern of FIG. They may be sequentially driven to blink to provide a movement display corresponding to the tape running direction and speed.

Note that the present invention is not limited to the above embodiments, and for example, the segment display element may be
In addition to the so-called 7-segment display elements, various display elements consisting of multiple segments such as 16-segment display elements can be used, and LEDs (light-emitting diodes), lamps, LCDs (liquid crystal display elements), plasma display elements,
An EL (electroluminescent) display element, etc. can be used. In addition to static driving in which each segment is statically driven to display at the same time, it is also possible to use so-called dynamic driving in which each segment is displayed in a time-divisional manner according to a clock signal. Since the speed is sufficiently high compared to human senses, it is not visually perceived as blinking. Furthermore, the character display segments may be used to perform a moving display, for example, the characters "T", "A", "P", and "E" in each segment of the character display unit 36E in FIG. 2 may be displayed in this order. Turn on the rightward movement display,
Alternatively, "E", "P", "A", and "T" may be lit in this order to display a leftward movement display.

〔Effect of the invention〕

According to the display device of the present invention described above, the segment display element for displaying characters, numbers, etc., such as 7 segments provided in the display unit, can display other than static patterns such as characters and numbers. Since it is possible to perform a moving display in which the position (lit position) or non-display position (lighted out position) visually moves, not only can the types of data that can be displayed be easily increased, but also the above-mentioned moving display allows for visual improvement. This makes it easy to distinguish between other display formats.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the entirety of a display system configured using a display device according to an embodiment of the present invention, and FIG. 2 is a plan view showing a specific example of the display section of the display device shown in FIG. , Fig. 3 is a schematic plan view showing the specific configuration of the 7 segments, Fig. 4 and Fig. 5 A
~C is a schematic plan view showing a display example for displaying the rotational deviation data from the player in FIG. 1 in a rotational movement; FIG. 6 is a schematic plan view for explaining another display example of the rotational movement display; Figures 7 and 8A
~D is a schematic plan view for explaining another example of rotational display, FIG. 9 is a schematic plan view for explaining an example of moving display, and FIG. 10 is a schematic plan view for explaining an example of tape running state display. FIG. 30...Display device, 31...Data selection circuit,
32...Decoder circuit, 34...Display section, 35,
35A-35D...7 segments, 36A-36
F...Character display unit.

Claims (1)

[Claims] 1. A display unit that displays letters or numbers using a plurality of segments, and two or more segments of the plurality of segments that are switched by a control signal to cause the display unit to display letters or numbers. A display device comprising: a decoder circuit that causes the display section to perform moving display by sequentially setting the display state or non-display state.