JPS5961871A - Display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device that displays characters, numbers, etc. by arranging a large number of devices in a row.

Since magnetic reversal type display devices can achieve large-sized displays and power-saving displays, they are arranged in large numbers and are often used for time displays, road signs, and advertising purposes.

Such magnetic reversal type display devices were made of permanent magnets or had display boards incorporating permanent magnets that were reversed by changing the direction of the electromagnetic current and changing the direction of the stator's magnetic field. However, this display device could only display two colors on the front and back sides of the display board.

Therefore, an object of the present invention is to provide a display device that can perform multicolor display.

The present invention provides a polygonal column-shaped display element having different color schemes on each side surface, and a driving means for rotating each side surface of the display element sequentially forward by driving the display element to rotate about a central axis. , a rotational position information generating means that has rotational position information in the circumferential direction corresponding to each (lll1 surface) of the display element and rotates in conjunction with the display element; A rotational position information detection means for detecting position information, a rotational position information setting means for setting rotational position information of any one of the display elements, and a rotational position detected by the four rotational position information detection means described in This configuration includes a control means for stopping the operation of the driving means when the information matches the rotational position information set by the rotational position information setting means.

Hereinafter, embodiments will be described in detail with reference to FIGS. 1 to 5.

As shown in FIGS. 1 and 2, this display device is a rectangular cylindrical display element with different color schemes (for example, 9 black, 9 red, and 9 yellow, 9 green) on each side surface IA, IB, IC, and ID. 1
A pair of gold holders 2 and 3 are fixed by means such as press fitting or adhesive so that their center widths match, and N and S poles are placed in the circular recess 2a provided on the outer surface of one holder 2 in the circumferential direction.
Ring-shaped rotor 4f with 4 poles magnetized alternately! : A pair of holders 2 are fixed so that their center axes match each other.
3 is rotatably supported by a fixed shaft 5 passing through its center @. Therefore, the display element 1 and the lower and lower ends 4 rotate about the fixed shaft 5.

Further, a substantially spiral-shaped stator 6 that can constitute four poles in the circumferential direction is fixed to the fixed shaft 5, and filters 7 and 8 on two mutually orthogonal sides of the stator 6 are respectively wound. The pair of holders 2.3 are positioned by a spacer 9 so that the rotor 4 rotates outside the stator 6 while maintaining an appropriate gap between the circumferential portion and the outer circumferential surface of the stator 6.

In addition, the side surface of the display element 1 ((black γ1) end Kr1l of A
Projecting pieces ia+tb are arranged side by side without showing the rotational position information of J, and the photosensor IOA is located at a position where these projecting pieces 1a and 1b can be sandwiched. IOB is installed, the side of display element 1 (red), the end of IB is provided with a protrusion IC indicating the rotational position information of "01", and the side of display element 1 (yellow)
End of IC; (is protrusion 1 indicating rotational position information of "10"
d is provided, and nothing is provided at the end of the side (green) ID of the display element 1, indicating rotational position information of "00". Then, when the display element 1 rotates and the black side surface IA is aligned with IIIK, the photosensors IOA and I
The optical path between the light emitting and light receiving elements of OB is blocked, and rotational position information of "11" is output from the photosensors IOA and ll0B. Next, when the red side surface IB faces forward, only the photo sensor t IOB of K is shielded from light, and rotational position information of "01" is output from the photo sensors IOA and IOB. Next, when the yellow 41111 surface 1c is in front of it, the photosensor IOA chisel is shielded from light, and the rotational position information of "10" is output from the photosensors IOA and IOB. Next, when the green side surface ID is turned all the way, neither the photosensors IOA nor IOB are blocked, and the photosensors IOA.

Rotational position information of "Oo" is output from 10B.

Note that the fixed 11TIII 5 is installed between a pair of bearings 12 and 13 arranged in parallel on the fixed plate 11, and the stator 6 is
Pass the screw 14 through the transparent 12a fI of the bearing 12 to the boss 1
5 is fixed to the bearing 12, and thereby the fixed shaft 5 is also identified to the bearing 12.

In this display device, two types of magnetic field distributions can be obtained by changing the direction in which current is applied to the cK column circuit of the coils 7.8. Pass through coil 7.8! In the state where the rotor 4 is not in use, the four magnetic poles of the rotor 4 are stopped at positions facing the four poles of the stator 6, respectively. For example, in FIG. 3 (the state of Al is a black display state in which the display element IQ black side face IA faces forward, in this state U, the coil 7.8 is When energized, the first and third poles 6A and 6C of the stator 6 become S poles, and the second and fourth poles 6B and 6D become N poles, respectively repelling the magnetic poles of the rotor 4. As a result, the rotor 4I holder 2.3 and the display element 1 are rotated 90 degrees counterclockwise, and the red side surface IB turns all the way to the red display state as shown in FIG. This state is maintained even if the energization is stopped.In this case, the polar center of the stator 6 and the coil 7.8 when the rotor 4 rotates counterclockwise when the coil 7.8 is energized. This is because the stator 6 is slightly angularly shifted between the pole center and D when not energized, and when the coil 7.8 stops energizing, it rotates further by the angular shift.

Next, when the coil 7.8 is energized from the terminal to the terminal A, the first pole 6A and the third pole 6C of the stator 6 become N
The second pole 6B and the fourth pole 6D become S poles and repel the magnetic poles of the rotor 4, respectively. The holder 2.3 and the display element 1 are further rotated 90 degrees counterclockwise, and the yellow display state is reached with the yellow side IC facing forward as shown in FIG. 3 (C1). This state is maintained even if you stop it.

Next, when the coil 7.8 is energized again in the direction from terminal A to terminal A', the first pole 6A and the third pole 6C become S poles, and the second pole 6B and fourth pole 6D become N poles. Ichigo,
Similarly, it is rotated 90 degrees counterclockwise and the green side ID shown in Figure 3 (Dl) becomes the green display state where it has been turned all the way, and then the coil 7.8 is energized again from the terminal to the terminal A. Then, the first pole 6A and the third pole 6C become the north pole, and the second pole 6B and the fourth pole 6D become the south pole, and are rotated 90 degrees counterclockwise, resulting in the dotted color display state shown in FIG. 3(A). Return to

In addition, in FIG. 3 (Al-(Dl), the photosensor IOA when each side surface of the display element 1 faces forward.
Although the positional relationship between a to 1d is also illustrated, the outputs of the photosensors IOA and IOH in each state are as described above.

Next, the electrical configuration and operation of this display device will be explained in detail - this display device is shown in FIG.
(Start switch SW as shown in BIK.

, flip-flop FF, astable multivibrator O5C, drive section DR, -several small section X, rotational position information setting section Y for selecting the color to be displayed, and photo sensor I
It is composed of OA, IOB, and an input timing control section Z for -number output.

The drive unit DR includes a coil 7.8, a transistor Q, and a transistor Q.
Engineering/, Q2. It consists of Q2/.

The rotational position information setting section Y is the cowl select switch S?
/ Engineering, SW2.

-Several circuit small part Red-number circuit X2 consisting of IN6, AND gates ANヮ~AN, and inverter N7#I
Yellow-number circuit x3 consisting of N8 and AND gate A
N□. A black-number output circuit X4 consisting of ~ AN circuit, and an OR game that takes the logical interest of the output of the one-number output circuit X ~ X4 of each color, and a RESET signal is output from this OR gate OR. This is input to the flip 70 block FF via the differentiation circuit DF.

Green - several output circuit X construction is color select switch 5W
IISW and are both off and rotational position information 7>("
00-1 and the rotational position information from the photosensors IOA and IOB is also "00", the output becomes "I(").

Similarly, in the red-number output circuit
1”, the output becomes “H”. The output of the yellow and black-several small portions X 3 e X 4 becomes "H" when the rotational position 1 blue information of both sides matches rlOJ and rllJ, respectively. - The input timing control section Z for outputting one or more components is connected to the inverter IN.
9. IN. and differentiation circuit DF3. DF3, and the outputs of the photosensors IOA and IOB are output only when each side surface IA to ID of the display element 1 faces the front.
- It supplies several small units X.

Note that AN is an AND gate, and IN is an inverter, and these are the coils 7 and 8 when the display element 1 is at rest.
This prevents electricity from being applied to the AN13゜AN工 is an AND gate.

Here, the entire operation when changing from the green display state to the yellow display state will be explained using the evening time chart of FIG.

Mass, color select switch SW, 5w2i- Rotation position information as on and off respectively 'k r 10 J
(corresponding to Fj color). Next, when the start switch SWo is turned on instantaneously and the 5tart signal is instantaneously changed to rFIJ, the inverted output a and the non-inverted output of the 7-rig 70-tube FF are rHJ-+'t,
J+ changes to rLj-rHJ, astable multivibrator O8C starts oscillating, and ant game) AN
Engineering opens. As a result, the astable multivibrator O5
The output f of the inverter IN is applied to the transistors Q and Q□', and the output g of the inverter IN, which is an inversion of the output f, is applied to the transistors Q and Q'. Q29 1 Q2' are turned on alternately, and the direction of energization to the coil 7.8 is alternately changed. That is, first, the transistor Q is activated during the first rHJ period of the output f.

Ql' is turned on and current is applied to the coil 7.8 in the direction from the terminal A to the terminal, and the display element 1 and rotor 4 are rotated 90 degrees counterclockwise, changing from a green display state to a black display state. When the rotation is completed and the output f falls, a timing pulse e is generated from the input timing control section Z, and this timing pulse e causes ant game)
AN engineer 31 AN14 opens, photosensor IOA,
The output of the IOB is input to several output circuits X, and the color select switch SW□.

It is compared with the setting information of SW2. The data input at this time is "11", so there is a mismatch, and the RESET
There is no signal. Therefore, the oscillation operation of the astable multivibrator O8C continues, and in the next rLJ period of the output f, the transistor Q2゜Q2' is turned on, and the coil 7゜8 is energized from the terminal to the terminal A, and the display element 1 and rotor 4 further rotate by 90 degrees, changing from the black display state to the red display state. When the rotation ends and the output f rises, that is, when the output g falls, a timing pulse e is generated. AN□
4 is opened, and a match between the outputs of the photosensors IOA and IOB and the values set by the color select switches SW and SW2 is detected. At this time, the photosensors IOA and I
Since the output of OB is "01" and does not match, oscillation continues. As a result, during the second rHJ period of the output f, the transistor Q1.01' is turned on again and the coil 7
．． 8 is energized in the direction from terminal A to terminal A', display element 1 and rotor 4 are further rotated by 90 degrees, changing from a red display state to a yellow display state. When the rotation ends and the output f falls, coincidence detection is similarly performed. At this time, since the outputs of the photosensors IOA and IOB are 1drlOJ, they match the values set by the color select switches sw and sw2, a RESET signal is output from the -number output circuit F
Since the inverting output a and the non-inverting output of the flip-flop FF are input to F, r'LJ−rHJ, r
Changes to HJ-rLj, astable multivibrator O8
The operation of C is stopped, the AND gate AN is closed, and the current supply to the coils 7 and 8 is stopped.

In addition, for other color changes, it operates in the same way, and the output of the photo sensors IOA and IOB and the color select switch S
The display element 1 and the rotor 4 rotate until W□+the set value of SW2 match, and stop at the time they match.

In this way, in this embodiment, by rotating the display element 1 in the shape of a rectangular cylinder with a different color scheme on each side using the middle/b axis as the rotation axis, any side of the display element 1 can be rotated in a curved manner. Because of this, the display of four colors can be easily switched. Moreover, display switching can be performed at high speed.

Furthermore, since all driving parts are located inside the display element 1, the device can be made thinner. In addition, each lll of display element 1
Protrusions 1a to 1d for creating rotational position information for each of the 1111 planes IA to ID are provided at the ends of I planes IA to ID, and these are detected by photosensors IOA and IOB, and this detection output and color select switches SW and SW2 are provided. − with the set value by
Since the display element 1 is stopped in response to several rotation angles, the IT planes IA to I of the display element 1 are rotated at the minimum rotation angle.
Any one of D can be placed in front and stationary.

As described above, the display device of the present invention has the advantage that it can easily perform multicolor display and can stand still with the side surface of the desired color aligned in front with the minimum rotation angle.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of one embodiment of the present invention, Fig. 2 is a sectional view of the assembled state, Fig. 3 (AJ~) is a side view showing each display state, and Fig. 4 (N. Bl is an electrical circuit diagram,
FIG. 5 is a waveform diagram of each part. DESCRIPTION OF SYMBOLS 1... Display element, IA-ID... Projection piece (rotational position information creation means), 2.3... Holder, 4... Rotor,
5...Fixed shaft, 6...Stator, IOA, IO
B...Photo sensor (rotational position information detection means), SW work, SW2...Color select switch, X...-
Several small sections, Y...n TIKs location information setting section 5tart-"-11111-e-11stopm Fig. 5 469-

Claims (1)

[Claims] a polygonal columnar display element with a different color scheme on each side; a driving means for sequentially turning each side of the display element forward by rotating the display element about a central axis; and mJ display elements. Rotational position information generating means that has rotational position information corresponding to each side surface in the circumferential direction and rotates in conjunction with the display element; and rotational position information that detects rotational position information corresponding to the front facing side surface of the display element. a detection means, a rotational position information setting means for setting rotational position information of an arbitrary side surface of the mJ display element, and a rotational position information detected by the rliJ rotational position information detection means and the rotational position information set by the rotational position information setting means. A display device comprising: a control means for stopping the njJ driving means ¥vJ when the rotational position information matches the rotational position information.