JPH0372393A - Display device - Google Patents

Abstract

PURPOSE:To make the circuit constitution simple, light-weight, and low-cost by controlling lighting/extinction of plural light emitting elements, which are moved by a moving means, by a display control means to display a specific character or symbol. CONSTITUTION:A light emitting means 1 has plural light emitting elements, and a moving means 3 moves the light emitting means 1, and a display control means 5 controls lighting/extinction of plural light emitting elements at the time of movement of the light emitting means 1 to display a specific character or symbol. In this manner, the display control means 5 controls lighting/ extinction of plural light emitting elements at the time of moving the light emitting means 1 having plural light emitting elements by the moving means 3 to display a specific character or symbol. The moving means 3 moves the light emitting means 1 to form a square display surface. The circuit constitution related to character or symbol display control is made simple, light-weight, and low-cost.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a display device, and particularly to a display device that displays specific characters or symbols by controlling the blinking of a plurality of light emitting elements. be.

[Conventional technology]

Electronic bulletin boards, neon signs, etc. are known as display devices that display specific characters or symbols.Such display devices are used by fixing a luminous body in a fixed place, but has proposed a device in which a light emitting body is attached to a rotating body such as a bicycle wheel or a fan blade.

In this type of conventional device, a plurality of light emitting elements, which are light emitters, are fixed to a rotating body such as a wheel, and these light emitting elements are synchronized with the rotation of the rotating body and sequentially blink at predetermined positions. I am trying to display characters or symbols. In this case, it is necessary to synchronize the rotation of the rotating body and the light emission timing of each light emitting element, but it is necessary to fix the magnet to a support frame that is fixed relative to the rotating body, such as a support for the front wheel of a bicycle. At the same time, a reed switch operated by this magnet is attached to the rotating body.
A position detector consisting of a magnet and a reed switch is used to synchronize both.

[Problem to be solved by the invention]

Display lIt using such a rotating body while lJp
In this case, the display surface is circular, and it is necessary to accurately detect the position of the rotating light emitting element and perform blinking control when the light emitting element rotates to a predetermined position. The control circuit was complicated.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a lightweight and low-cost display device that can perform blinking control of a plurality of light emitting elements attached to a movable body with a simple circuit configuration. With the goal.

[Means to solve the problem]

The means provided by the present invention for achieving the above object are as follows:
As shown in FIG. 1, a light emitting means 1 having a plurality of light emitting elements, a moving means 3 for moving the light emitting means 1, and a blinking of the plurality of light emitting elements when the light emitting means 1 is moved, can be used to and display control means 5 for displaying characters or symbols.

[Effect]

In the present invention, a light emitting means l having a plurality of light emitting elements is moved by a moving means 3. At this time, the display control means 5 displays a specific character or symbol by controlling the blinking of the plurality of light emitting elements. By causing the moving means 3 to move the light emitting means 1 in this manner, a rectangular display surface is formed, and the circuit configuration related to display control of specific characters or symbols can be simplified.

〔Example〕

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

@Figure 2<A) is an external view of the display device 11 according to the present invention, and FIG. 2(B) is a perspective view showing the sliding portion 7 and the display portion 9 incorporated into the housing 13. The display section 9 is provided with a plurality of light emitting elements 15 serving as light emitting means. The display section 9 also incorporates display vIlII means for controlling the blinking of the plurality of light emitting elements 15. The sliding section 7 is configured using, for example, a moving coil linear motor, and moves the display section 9 wJ. Further, as shown in FIG. 3, a predetermined DC power source from the battery BT is connected to the diode D1. The signal is applied to the sliding section 7 and the display section 9 via the switch SWI.

Next, the sliding section 7 and the display section 9 will be explained with reference to FIG.

A mounting surface 21a of the rail 21 is adapted to be mounted to the upper rear surface of the housing 13. The rail 21 has an inverted U-shaped cross section and is made of aluminum, resin, or the like. A holding portion 22 is formed on one inner surface of the rail 21 and holds a plurality of permanent magnets 23. A pair of yokes 24 are also inserted from the ends of the rails 21.

The coil 25 is provided so that it can move in a direction perpendicular to the magnetic flux of the permanent magnet 23 in the air gap between the side surface of the permanent magnet 23 and the side surface of the other yoke 24, and the effective winding portion is perpendicular to the magnetic flux. , is wound flat so that the length is approximately half that of the permanent magnet 23. Further, the coil 25 has a U-shaped cross section, and the sliding portion of both bent portions that engage with the holding portion 22 forms an id. The display section 9 fixed to the coil 25 moves within the display window 17 shown in FIG. 2(A) as the coil 25 slides. At this time, the display content displayed by the display unit 9 can be viewed from the direction Fl.

Next, the sliding portion 7 will be explained in more detail with reference to FIGS. 5 and 6.

A plurality of permanent magnets 23 have a flat plate shape, are magnetized in the thickness direction, and are arranged along the yoke 24 so that the polarities are sequentially opposite to each other. In addition, the pair of coils 25A and 25B are
Each is formed to have a length 1.5 times the length of the permanent magnet 23, and has an air core part in the center that is 0.5 times the thickness of the permanent magnet 23. Current collector brush 2 (3A, 2
6B is provided. To describe the current collecting brush 26A provided on the coil 25A as a representative, the current collecting brush 26A is formed by a brush 26AU arranged on the upper side and a brush 26AL arranged on the lower side. Current collection brush 26B
The same applies to

As shown in FIG. 6(A), on the inner surface of one side of the rail 21,
A power supply pattern 27 is formed. This power supply pattern 27 is formed of a pattern 27A to which a positive potential is applied and a pattern 27B to which a negative or ground potential is applied, as shown in FIG. 6(C). A locus 28U shown by a chain double-dashed line in tJS6 (C) represents the locus of the brush 26AU, and a locus 28L represents the locus of the brush 26AL. Therefore, the current collection brush 26A comes into contact with the power feeding pattern 27 only in the current-carrying section E (Ea t Eb...). To explain specifically, the energized section E
In a, the upper brush 26AU contacts the pattern 27A, and at the same time, the lower brush 26AL contacts the pattern 27B. Moreover, in the next energization period Eb, the brush 26AU contacts the pattern 27B, and at the same time, the brush 26AL contacts the pattern 27A. That is, fill 25A,
When the effective winding part of 25B is completely located within the magnetic flux of the permanent magnet 23, power is supplied to the corresponding coils 25A and 25B, and as the coils 25A and 25B move, the magnetic flux of the permanent magnet 23 is reversed. Now coils 25A and 25B
The polarity of the supply is also reversed.

Next, the display section 9 will be explained in detail with reference to Figure 7. The microprocessor 31 is an 8-bit micro combinator,
IK byte EP-ROM, 64 byte RAM,
It has a built-in input/output board, timer, counter, etc. The oscillator 33 oscillates at a predetermined period and sends an oscillation output to the microprocessor 31. A clock pulse of a predetermined period is generated based on the oscillation output of the oscillator 33, and drives the above-mentioned timer, counter, etc. Also EP-ROM
Various control programs related to display control for controlling the blinking of the plurality of light emitting elements 15 to display specific characters or symbols are stored in the . Control information based on these control programs is sent to terminals P10 to P16. P20~
It is designed to be output from P25.

Each terminal PIO-P16 is connected to the corresponding light emitting element 15 via an inverter 35 and a resistor R1. ±, each terminal P20 to P24 is connected to a resistor R2
and is connected to the matrix circuit 37 via the transistor TR. In the matrix circuit 37, 35 LEDs are arranged in 5 columns x 7 rows, and each row of LEDs is connected to a resistor R3.
and is connected to the corresponding light emitting element 15 via the resistor R1. Each light emitting element 15 has two light emitting diodes, and high brightness ones are used.

Terminals POO, POI, PO2, PO3 are connected to switches SW2, SW3, SW4, . Connected to SW5. Switches SW2 and SW3 are switches for selecting characters or symbols to be displayed. switch SW4
is a switch to indicate the end of the selection, and when this switch SW4 is operated, the information of the selected character or symbol, such as "Please go first...J", will be registered in the RAM etc. The switch SW5 is a switch for indicating the start of the display operation of the registered information.

Next, the effect will be explained.

When the switch SWI is closed, a predetermined DC power is supplied to the sliding part 7 and the display part 9.

First, in the sliding part 7, FIGS. 5 and 61! As shown in I, when the magnetic flux φ from the N pole of the permanent magnet 23 moves toward the front side from the plane of the paper, and a current I flows upward in one of the effective windings of the coil 25A, the coil 25A moves to the left hand of the lemming 7. By law, it slides in the direction F2 perpendicular to both the magnetic flux φ and the current I. This situation is shown in Figure @6 (B
), for example, the current collecting brush 26A is in contact with the power feeding pattern 27 in the energizing section Ea. Specifically, at the same time that the brush 26AU contacts the pattern 27A, the brush 26AL contacts the pattern 27B. At this time, the current collecting brush 26B is out of the energized section E,
No current is applied to the coil 25B.2 Next, suppose that the pair of coils 25A and 25B slide from the position shown in FIG. 6(B) in the direction F2 by a distance of 0.5 times the length of the permanent magnet 23. The current collection brush 26B comes into contact with the power supply pattern 27 in the energization section Ec. That is, at the same time that the upper brush 26BU contacts the pattern 27A, the lower brush 26BL contacts the pattern 27B.

At this time, the current collecting brush 26A is out of the energized section E, and the coil 25A is not energized.

As described above, the pair of coils 25A and 25B are alternately energized and slide in the direction F2. The sliding speed at this time is selected to be an appropriate value in consideration of the visibility of the light emitting element 15 and the like.

Furthermore, as the coils 25A and 25B slide, the display section 9 also moves in the direction F2.

Show next! ! 69 will be explained below.

As described above, the display section 9 also moves in the direction F2 in accordance with the sliding of the coils 25A and 25B, but when the switch SW5 is turned on while moving in the direction F2, the III control information is transferred to the terminals PIO to P16. It is output from P20 to P25. As a result, the display window 17 shows "
Please go ahead...'' is displayed as visible information.

Next, when the display section 9 moves to the right end of the display window 17, the polarity of the potential applied to the patterns 27A and 27B is reversed, and thereby the coils 25A and 25B are
slides in the direction opposite to direction F2. Coil 25A, 25
By repeating the above-described operation when B is in its original position, that is, when the display section 9 is positioned at the left end of the display window 17, the visible information "Please go first..." can be displayed on the display window 17 again. .

Note that if the above-described operations are configured to be automatically repeated, visible information can be displayed continuously.

Further, in the embodiment described above, the visible information is displayed only when the display n9 moves in the fixed direction F2, but the visible information is also displayed when the display unit 9 moves in the opposite direction to the direction F2. With this configuration, the displayed content can be made even clearer.

Furthermore, as described above, the content displayed on the display section 9 is not limited to the information "Please go first...", and any appropriate information can be displayed.

〔Effect of the invention〕

As explained above, according to the present invention, a specific character or symbol is displayed by controlling the blinking of a plurality of light emitting elements moved by a moving means, so that the circuit configuration is simplified. In addition, it is possible to realize a lightweight and low-cost display device.

In addition, Lini 7 is used as a means of moving the light emitting elements.
Since it is constructed using a motor, it is possible to reduce the noise generated during movement.

[Brief explanation of drawings]

Fig. 1 is a diagram corresponding to the claims, Fig. 2 is a perspective view of an embodiment of the present invention, Fig. 3 is a block diagram showing the connection and configuration of an embodiment of the invention, and Fig. 4 is an explanatory diagram showing the sliding part and the display part, Fig. 5 is a perspective view of the sliding part, Fig. 6 is an explanatory diagram showing the action of the sliding part, and Fig. 7 is a circuit diagram of the display part. . 1... Light emitting means 3... Moving means 5... Display control means

Claims (1)

[Scope of Claims] A light emitting means having a plurality of light emitting elements; a moving means for moving the light emitting means; a specific character or symbol by controlling blinking of the plurality of light emitting elements when moving the light emitting means; A display device comprising: a display control means for displaying;