JPH0229778A - Display element - Google Patents

Abstract

PURPOSE:To facilitate display more than four colors by disposing a foldable display body between mobile members. CONSTITUTION:The column part 11a of a magnetic circuit yoke 11 acts as a south pole due to the action of permanent magnetics 12-17, and the magnetic line of force is generated toward the column part 11a from the periphery. When a current is allowed to flow to the coil 22 of a mobile board 18 counterclockwise, the board 18 is moved upward. Then, a display sheet 26 and its facing sheet 31 which are between a fixing board 24 and the mobile board 18 are inside folded, and a display sheet 27 between the boards 18 and 19 and the facing sheet 31 are opened. Therefore, when the display element is observed from an A direction, its color is changed from white into red. In a control circuit, each display element 10 is changed into an arbitrary display color by freely controlling each switching circuit, and an arbitrary image is obtained on a display matrix.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a display element, and more particularly to a display board, etc., which is installed outdoors and whose display content and display color change under the control of a control device, etc. It relates to display elements.

[Prior art]

Conventionally, neon tubes have been used as display elements constituting display boards and the like. However, display boards using neon tubes have the disadvantage that it is difficult to provide multiple colors. Therefore, some display boards that can be multicolored use a rotating polyhedron with each side painted in a different color as a display element.

[Problem to be solved by the invention]

However, in such a rotating polyhedral display element,
A space is required to rotate the rotating polyhedron.

In the case of 4-color display, this space is 20% of the total display area.
%, reaching 50% in the case of six-color display. Therefore, as the number of colors increases, the area for actually displaying colors decreases.

In addition, with this method, when five or more colors are displayed, other colors may be visible when viewed from an oblique direction.

For the reasons mentioned above, there is a problem in that it is virtually impossible to create a display board capable of displaying four or more colors using this method.

The present invention has been made to solve the above problems,
The purpose is to provide a display element that can easily display four or more colors.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a plurality of moving members that move along a predetermined trajectory, and a plurality of moving members that are provided between the moving members,
It is characterized by having a foldable display body and a driving means provided to individually move the moving members.

[Effect]

In the present invention having the above configuration, when the movable member moves, one of the foldable display bodies provided between the movable members opens, the other display body is folded, and the foldable display body is opened. The color becomes the display color of this display element.

[Example] An example in which the present invention is applied to a display board will be described below with reference to the drawings.

Figure 1 shows a display element 1 that is responsible for displaying one pixel of this display board.
0 is a diagram showing the configuration of 0. The magnetic circuit yoke 11 shown in this figure is made by bending a ferromagnetic plate into a U shape as shown in Fig. 2, and arranging two of them and closing the opening with a ferromagnetic plate. . Permanent magnets 12 to 17 are attached to both left and right ends of the magnetic circuit yoke 11 and to the upper and lower portions of each U-shaped portion, respectively, with their N poles on the inside.

The central columnar portion 11a of this magnetic circuit yoke 11 has 4
It passes through a hole 30 provided at the center of each of the movable plates 18 to 21. The moving plates 18 to 21 are made of ferromagnetic material, and a fill 22 is wound around the hole 30 as shown in FIG.

This coil 22 is connected to a power source via a 7-lexiple copper foil lead wire 23 and a switching circuit (not shown). This switching circuit has a function of blocking the current flowing through the fill 22 and changing the polarity of the voltage applied to the fill 22. Further, the movable plates 18 to 21 are provided at the upper and lower ends of the columnar portion 11a.
Fixed plates 24 and 25 having the same shape are fixed. Each of these adjacent fixed plates 24, 25 and moving plates 18 to 2
As shown in FIGS. 4 and 5, display sheets 26 to 30 are pasted between the sides of 1 in a predetermined direction.

These display sheets 26 to 30 are colored in order of white, red, green, blue, indigo, and black.

These display sheets 26 to 30 are bent inward at the central horizontal line, as shown in FIG. 5, and are folded when the movable plates or fixed plates on both sides are in close contact with each other. Also, on the side opposite to the side on which these display sheets 26 to 30 are pasted, there is a sheet 3 of the same quality for balance.
1 is attached. Furthermore, id holes 32 are provided at the four corners of the movable plates 18 to 21 and the fixed plates 24 and 25.

An idper 33 is provided through this guide hole 32,
The movable plates 18 to 21 can move up and down along their id bars 33.

Innumerable display elements 10 configured as described above are lined up in the vertical and horizontal directions to form a display matrix to form the main display board. The switching circuit is controlled by a single control device (not shown).

The operation of the display panel of this embodiment configured as described above will be explained below.

First, the function of each display element 10 will be explained with reference to the drawings.

Due to the action of the permanent magnets 12 to 17, the columnar portion 11a of the magnetic circuit yoke 11 retains S-pole magnetism. Therefore, lines of magnetic force are generated in the direction toward the columnar portion 11a from the periphery. For example, in (a) of the HS diagram, the moving plate 18
A current is passed through the fill 22 in the counterclockwise direction in FIG. Then, the movable plate 18 is moved upward by a force related to the left-hand rule of seven lemmings, resulting in the state shown in FIG. 5(b). Then, the display sheet 26 affixed between the fixed plate 24 and the movable plate 18 and the opposing sheet 31 are folded inward, and the display sheet 27 affixed between the movable plate 18 and the movable plate 19 and the opposing sheet 31 are folded inward. Seat 31 opens. Therefore, when the display element is viewed from the direction of arrow A in the figure, the color changes from white to red. - Once the movable plates 18 to 21 move, the movable plate 18
21 are attracted and their positions are maintained even after the current is cut off. In order to return the moved movable plates 18 to 21 to their original positions, current may be passed through the coil 22 in the opposite direction. By passing current through the coil 22 in a clockwise or counterclockwise direction, it is possible to freely change the display color at high speed and with low power.

In this way, each display element 10 changes its display color by the current flowing through each coil 22. By freely controlling each switching circuit, the control circuit changes each display element 10 to an arbitrary display color and obtains an arbitrary display image on the display matrix.

〔Effect of the invention〕

As detailed above, according to the present invention, it is possible to have four or more display colors and change the display colors at high speed.

Furthermore, even in the case of multi-color display, there is no hidden space for rotation as seen in conventional devices, and there is an excellent effect that the color of almost the entire surface can be changed.

[Brief explanation of the drawing]

Figures fj4i to 5 show one embodiment of the present invention. Figure 1 is a perspective view of a display element constituting a single pixel of the display panel of this embodiment, and Figure 2 is a yoke for a magnetic circuit. 3 is a top view showing the structure of the movable plate, FIG. 4 is a perspective view showing each movable plate and display sheet taken out, and Fig. 5 is a front view showing the structure of the movable plate.
The figure is an operational diagram for explaining the operation of the present display element. In the figure, 12 to 17 are permanent magnets, 18 to 21 are moving plates corresponding to moving members, 22 are coils corresponding to electromagnets,
26 to 30 are display sheets corresponding to the display body.

Claims (1)

[Claims] 1. A plurality of movable members that move along a predetermined locus; a foldable display provided between each movable member; and a display body that is folded by moving the movable members individually. 1. A display element comprising a drive means for extending a display body between moving members. 2. The display element according to claim 1, wherein the driving means includes an electromagnet provided on the movable body, and a magnetic field generating means for generating a magnetic field on a trajectory along which the movable body moves. display element. 3. The display element according to claim 2, wherein the magnetic field generating means is a permanent magnet.