JP2994433B2 - Display element - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display element forming a pixel of a large-sized display device.

[Conventional technology]

2. Description of the Related Art Conventionally, a large-sized display device used for displaying a score or a player name in a sports stadium or for displaying time, temperature, and the like provided on an outer wall of a building or the like has been known. Each pixel of this type of display device is constituted by display elements independent of each other.

As the display element, for example, those disclosed in Japanese Utility Model Publication No. Sho 59-43586 and Japanese Patent Laid-Open Publication No. Sho 55-134887 are known. These display elements are provided with electromagnetic driving means having a frame that swings like a pendulum, and are configured so that the display plate slides through a complicated link mechanism that constitutes a so-called Scott Russell mechanism together with the display plate. I have.

By the way, these display elements are often configured by mounting a display unit in a case having at least a front surface having a transparent flat portion, and the transparent front portion of the case front surface is parallel to the case bottom surface. Therefore, there is a disadvantage that light from the sun or an illumination lamp is reflected on a transparent flat portion on the front of the case, and this reflected light is easily directed toward a viewer of the display element, and becomes an obstacle for a viewer of the display element. Was.

On the other hand, since the transparent flat part on the front surface of the case is not parallel to the case bottom but has an angle, the reflected light determined by the position of the display element and the position of the light source is directed to the direction of the viewer of the display element. The present invention has proposed a display element that is difficult to view and that is easy for a viewer to see.

[Problems to be solved by the invention]

However, even in the above-described display element, the display plate when the display unit is in the display state is the most natural direction for a viewer of the display element. , The apparent area of the display panel is reduced to a value obtained by multiplying COS θ (where θ is the angle formed by the plane of the transparent flat surface on the front surface of the case and the extension of the display surface of the display panel of the display unit). . That is, the area of the display panel of the display element is reduced. Therefore, it becomes difficult for a viewer to see the display element.

The present invention has been made in order to improve the above-described problems, and the purpose thereof is that, when viewed from the most natural direction for a viewer of the display element, the area of the display plate of the display element is: An object of the present invention is to provide a display element which is not reduced in appearance but is maximized, and in which a display plate is easily visible in a display state.

[Means for solving the problem]

A display unit having a display plate that rises and falls between a display state position substantially parallel to the base mounting surface and a non-display state position substantially orthogonal to the base mounting surface, the display of the display state; A display element disposed in a case in which opposing front surfaces of the plate are formed of at least a transparent flat portion, wherein the transparent flat portion of the case is joined to a substantially vertical mounting plate to which the display element is mounted. The display unit is formed so as to be non-parallel to the case bottom surface, and the display plate in a display state is disposed so as to be parallel to a transparent flat portion of the case. A printed wiring board mounting surface provided on the front side of the case bottom surface and abutting on the base mounting surface so as to be parallel to the transparent flat surface of the case, and electrically connected to the display unit. Is fixed through the printed wiring board to a connection pin provided on the printed circuit board,
It is characterized by projecting substantially perpendicular to the case bottom surface.

[Action]

According to the invention, when the display element is in the display state, the display plate of the display unit and the transparent flat portion on the front surface of the case are parallel to each other, and connection pins for electrically inputting to the display unit are perpendicular to the bottom surface of the case. It protrudes into.

〔Example〕

1 and 2 show a state where the display unit 1 is housed in a case 2, and FIG. 3 is an exploded perspective view of the display unit 1. FIG.

The display unit 1 is, as shown in FIGS. 1 and 3,
A bar-shaped iron core 12 is provided upright on a base 11 made of a synthetic resin. A coil 14 is wound around a coil bobbin 13 formed integrally with the base 11 and through which the iron core 12 is inserted. Coil 14
Two windings are connected in series, or one winding is provided with a tap at an intermediate portion, and has three terminal wires. Each terminal wire is connected to three terminal pins 15 projecting perpendicularly to a base mounting surface 11a opposite to the surface on which the iron core 12 is erected on the base 11.

At the end different from the base 11 in the coil bobbin 13,
A substantially U-shaped bearing 16 is integrally formed as a connecting member. A bearing hole 16a is formed in each of the two leg pieces of the bearing 16, and the tip of the iron core 12 projects from the center of the horizontal piece of the bearing 16. The bearing hole 16a is provided at a position shifted from the center line of the iron core 12. A rotating shaft 18 provided on the back surface of the display plate 17 is inserted into the bearing hole 16a from the inside of the leg piece, and the display plate 17 is rotatably mounted on the iron core 12. The surface of the display plate 17 is printed or painted for display, or a sheet is attached. A pair of protruding sides 17a protrude from the rear surface of the display plate 17, and a rotating shaft 18 protrudes integrally from one side surface of each protruding side 17a. Further, a permanent magnet 19 magnetized in the thickness direction of the display panel 17 is provided between the two protruding sides 17a.

According to the above-described configuration, when one of the three terminal pins 15 is used as a common terminal, and the core 12 is energized in a direction to attract the permanent magnet 19 with one of the remaining terminals, the display panel
17 is substantially parallel to the tip surface of the iron core 12, and the display state is established. At this time, the display plate 1 is placed on the front of the bearing 16 parallel to the base mounting surface 11a.
The contact of the back surface of 7 restricts the rotation of the display plate 17, and the display plate 17 is parallel to the base mounting surface 11a. Also,
The core 12 is a permanent magnet between the common terminal and the other terminal
When electricity is supplied in a direction that repels 19, the display plate 17 falls down at a position substantially perpendicular to the tip end surface of the iron core 12, and a non-display state is set. At this time, the rotation of the display plate 17 is regulated by the back surface of the display plate 17 abutting on the upper surface of the bearing 16 perpendicular to the base mounting surface 11a, and the display plate 17 is substantially perpendicular to the base mounting surface 11a. Intersect. Therefore, if the side (the left side in FIG. 1) in which the front end face of the iron core 12 is viewed from the front is set as the front, the surface of the display plate 17 can be seen or not seen from the front as the coil 14 is energized. In this way, the display state and the non-display state are switched.

The case 2 is formed by combining a rectangular tubular case body 21 having one opening and the other bottom closed, and a transparent cover 22 that covers the opening of the case body 21 in a closed manner. In the embodiment shown in (1), the plane portion of the transparent cover 22 facing the display plate 17 in the display state has 6 ° downwardly with respect to the case bottom surface 21c of the case body 21.

By the way, the base 11 is fitted into a recess 23 provided on the inner surface of the bottom surface of the case main body 21, and is fixed by a fixing screw 24 inserted from the outside of the case main body 21 through the case bottom surface 21 c of the case main body 21. It is fixed to the main body 21. Here, in the embodiment shown in FIG. 1, the display unit mounting surface provided in the recess 23 of the case main body 21 corresponding to the case bottom, where the base mounting surface 11a of the base 11 is mounted in contact with the base mounting surface 11a.
21a is formed in parallel with the plane portion of the transparent cover 22 facing the display plate 17 in the display state.

Therefore, the display panel 17 in the display state is the same as the display panel 17 in the display state.
Is parallel to the plane portion of the transparent cover 22 facing the surface.

Therefore, the most natural direction for the viewer of the display element,
That is, when the display element is viewed from the front with respect to the plane portion of the transparent cover 22 facing the display panel 17, the display panel 17
Is maximized without apparent decrease, and the display plate 17 is easily seen in the display state.

In the embodiment, the case 2 has a rectangular cylindrical case body 21 with one opening and the other bottom closed,
The joint portion with the transparent cover 22 that covers the opening surface of the opening 21 so as to close it is positioned at a portion where the surface of the display plate 17 in the display state intersects the case 2 or slightly behind. The light is well projected onto the display surface of the display plate 17 so that the display surface of the display plate 17 is easily visible, and the back surface of the display plate 17 unnecessary for display is not visible from the outside, so that the appearance is improved.

Further, a protruding base 25 having a cylindrical outer surface is formed at a portion surrounding the base 11 on the outer surface of the bottom wall of the case main body 21. The terminal pins 15 of the display unit 1 are not perpendicular to the case bottom surface 21c from the case body 21 through the case bottom surface 21c, and the flat portion of the transparent cover 22 facing the display plate 17 is opposed to the case bottom surface 21c of the case body 21. It is pulled out at an angle that it forms.

The display device of FIG. 2 which is another embodiment is substantially the same as that of the above embodiment, except that the base 11 of the display unit 1 is different.
Is mounted on the printed wiring board 4, and the base 11 fixed to the printed wiring board 4 with the base mounting screws 41 is provided on the front side of the case bottom surface 21c so as to contact the base mounting surface. The printed wiring board 4 is fixed to the printed wiring board mounting surface 21b formed in parallel with the flat portion of the transparent cover 22 facing the board 17 with the printed wiring board mounting screw 42 while pressing the printed wiring board 4 against the board 17. Also, three connection pins 43 for inputting an electric signal from the printed wiring board 4 to the display unit 1 are connected to the case bottom surface 21c.
Through the case body 21 and perpendicularly to the case bottom surface 21c.

Therefore, as compared with the embodiment shown in FIG.
Since the 43 is pulled out perpendicular to the case bottom surface 21c, electrical connection by a connector or the like becomes easy.

Meanwhile, when fixing the display element configured as described above to the mounting plate 3, an annular waterproof packing 31 fitted around the protruding base 25 is used as shown in FIG. The waterproof packing 31 is formed by integrally forming an inner ring 32 that is in close contact with the protruding base 25 and an outer ring 33 that is formed so as to increase in diameter as the distance from the mounting plate 3 increases. The thickness of the waterproof packing 31 in the projecting direction of the projecting table 25 is set to be slightly larger than the projecting amount of the projecting table 25.

However, a mounting hole 34 for exposing the terminal pins 15, the connection pins 43 and the fixing screws 24 is formed in the mounting plate 3, and the waterproof packing 31 is fitted around the pedestal 25, so that the mounting hole 34 is larger than the mounting hole 34. Attach the mounting screws 35 to the case bottom 21c through the mounting plate 3 on the outside.
Is screwed, the waterproof packing 31 is compressed between the case body 21 and the mounting plate 3, so that water can be prevented from entering the mounting plate 3 from the front side to the rear side.

In the embodiment, the purpose is achieved by processing the case side because it is desired to use one type of display unit 1 for rationalization, and the purpose is achieved by processing the display unit 1 side. Needless to say, this can be achieved.

〔The invention's effect〕

According to the present invention, since the transparent flat portion on the front surface of the case facing the display plate in the display state is not parallel to the bottom surface of the case, the light reflected by the light source such as the sun or a lighting lamp on the front surface of the display element. However, it is possible to make it difficult for the viewer to obstruct, and to display the display element from the most natural direction for the viewer, that is, from the front to the transparent flat part on the front surface of the case facing the display plate in the display state. When the element is viewed, the area of the display panel of the display element is maximized without apparent decrease, and the display panel is easily seen in the display state. As a result, it is possible to provide a display device capable of making a display device configured as an aggregate of display devices independent of each other easier to see.

According to the second aspect, there is an advantage that electrical connection by a connector or the like for inputting an electrical signal to the display unit can be easily performed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention, FIG. 2 is a sectional view showing another embodiment, FIG. 3 is an exploded perspective view of a display unit, and FIG. FIG. 4 is a perspective view showing a method of performing the operation. 1 Display unit, 2 Case, 4 Printed wiring board, 11a Base mounting surface, 17 Display board, 21c Case bottom, 43 Connection pins.

Continuation of the front page (56) References JP-A-3-220588 (JP, A) JP-A-3-220589 (JP, A) JP-A-4-31888 (JP, A) JP-A-4-33079 (JP) , U) Fully open sho 56-128678 (JP, U) Fully open sho 61-121484 (JP, U) Full open hei 3-98484 (JP, U) Full open sho 60-193584 (JP, U) Real open sho 62-99094 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G09F 9/37 G09F 11/00

Claims (2)

(57) [Claims] 1. A display unit having a display plate which rises and falls between a display state position substantially parallel to a base mounting surface and a non-display state position substantially orthogonal to the base mounting surface, A display element disposed in a case in which the opposite front surface of the display plate in a display state is formed of at least a transparent flat part, wherein the transparent flat part of the case is substantially perpendicular to the display element. A display element, which is formed non-parallel to a bottom surface of a case joined to a mounting plate, and wherein the display plate in a display state is disposed so as to be parallel to a transparent plane portion of the case. 2. A printed wiring board mounting surface provided on the front side of the bottom surface of the case and formed in contact with the base mounting surface so as to be parallel to a transparent flat portion of the case. And fixing via a printed wiring board electrically connected to the display unit, and connecting pins provided on the printed wiring board are projected substantially perpendicularly to the bottom surface of the case. Item 2. The display element according to Item 1.