JPH0727498Y2 - LED display - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED display used for displaying numbers and the like.

[0002]

2. Description of the Related Art A conventional LED display is constructed, for example, as shown in FIGS. 5 and 6 (a sectional view taken along the line AA of FIG. 5). That is, in the figure, an LED display 1 includes a case 4 having a light-transmitting portion (window) 2 having a 7-segment structure for displaying numbers on a front wall 3, and a light-transmitting material having the same 7-segment structure as the light-transmitting portion 2. A film 7 fixed to the surface of the front wall 3 so that the translucent portion 5 matches the translucent portion 2, and an inner surface of the front wall 3 of the case 4. Of the LED chip 10 mounted on the printed circuit board 9 so as to be positioned on the back of the display unit 6 and the stepped unit 8 provided at the four corners of the display unit 6. It consisted of and.

[0003]

However, in the LED display device 1 having such a configuration, the display mode is flat and lacks interest, and it is impossible to change the display mode.

In view of the above points, the present invention has an object to provide an LED display device in which the display mode is three-dimensional and full of fun, and the display mode can be changed.

[0005]

In order to achieve the above-mentioned object, the present invention is fixed to a case having a front wall provided with a display portion consisting of a light-transmitting portion of a predetermined shape, and a step portion provided in the case. And a plurality of LED chips mounted on the substrate so as to be located on the back of the display section.
In the D display, the translucent portion is formed into a lens shape using a transparent resin, a protrusion is provided at a position rearward of the step portion of the inner wall of the case, and a notch corresponding to the protrusion is formed on the substrate. If the protrusion and the notch match, the substrate is fixed on the step and the position of the LED chip matches the central axis of the light-transmitting part, and the protrusion and the notch do not match the substrate. Is fixed on the protrusion and the position of the LED chip is displaced from the central axis of the light transmitting portion.

[0006]

According to the above construction, since the light-transmitting portion is formed in a lens shape by using the transparent resin, the display mode becomes three-dimensional and the fun is enhanced. Further, the relative positions of the LED chip and the translucent portion in the front-rear direction and the lateral direction can be changed depending on whether the protrusion provided on the case and the notch formed on the substrate are aligned with each other. Therefore, since the direction and the angle of view of the light emitted from the light transmitting portion change, the display mode changes.

When the substrate is fixed on one of the stepped portion and the protrusion, the LED chip may be positioned at the focal position of the lens-shaped light transmitting portion. Light emitted from the light-transmitting portion becomes parallel light, and when the LED chip is fixed on the other side, if the LED chip is displaced from the focal position of the lens-shaped light-transmitting portion, the light emitted from the light-transmitting portion is converged. Since it becomes light or diffused light, the display mode can be changed more greatly.

When the substrate is fixed on one of the step portion and the protrusion, the LED chip is located on one side of the lens-shaped light-transmitting portion, which is out of the focus position,
When the LED chip is fixed on the other side, if the LED chip is located on the other side out of the focus position of the lens-shaped light-transmitting portion, the light emitted from the light-transmitting portion is converged light or diffused light. Since it changes from one to the other, it is possible to make the change in the display mode different.

Further, a positioning pin is provided on the inner surface of the front wall of the case, and a positioning hole is provided in the substrate,
When the protrusion and the notch match, if the positioning hole is fitted into the positioning pin, in that case, the position of the LED chip can be more accurately aligned with the light transmitting portion.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiment shown in the drawings, in which the same members as those in the above-mentioned conventional example are designated by the same reference numerals. FIG. 1 is a perspective view of an embodiment of the LED display according to the present invention, and FIG. 2 is a sectional view taken along line 1B-B of FIG. In the case of the present embodiment, the transparent portion 2 of the 7-segment structure of the front wall 3 of the case 4 is formed of transparent resin.
For example, a lens portion 11 having a convex lens shape is fitted,
The one lens unit 11 as a whole constitutes the display unit 6. The lens portion 11 may be integrally molded with the case 4 by a two-color molding method.

Further, as shown in FIGS. 2 and 3 (A), a pair of protrusions 12 are provided at a position rearward of the step portion 8 on the inner wall of the case 4, and FIG. 3 (B). As shown in FIG. 3, the printed circuit board 9 is formed with a pair of notches 13 that coincide with the protrusions 12. When the protrusion 12 and the notch 13 coincide with each other, the printed circuit board 9 can be inserted into the case 4 and fixed on the stepped portion 8, and at this time, the position of the LED chip 10 is set to the light transmitting portion 2, that is, the lens. It coincides with the central axis of the portion 11. On the other hand, the printed circuit board 9 is placed around the axis along the emission direction from the above state.
Protrusion 12 and cutout 1 as if rotated by 80 °
When 3 does not match, the printed circuit board 9 cannot be inserted into the case 4 and is fixed on the pair of protrusions 12, and
The position of the LED chip 10 is at the light transmitting portion 2, that is, the lens portion 11.
It is designed to deviate from the central axis of. Further, when the printed circuit board 9 is fixed on the stepped portion 8, the LED chip 10 is located at the focal position of the lens portion 11, and when the printed circuit board 9 is fixed on the protrusion 12, the focal position of the lens portion 11 is formed. Therefore, the position of the LED chip 10 is displaced.

Further, as shown in FIG. 3 (A), two positioning pins 14 are provided on the center dividing line on the inner surface of the front wall 3 of the case 4 and are symmetrical with respect to the center dividing line. Two positioning pins 15 are provided at the positions. On the other hand, as shown in FIG. 3 (A), two positioning holes 16 are provided on the center dividing line of the printed circuit board 9, and two positioning holes 17 are provided at symmetrical positions with respect to the center dividing line. Is provided. And
When the projection 12 and the notch 13 match each other, the positioning holes 1 corresponding to the positioning pins 14 and 15 respectively.
6 and 17 are respectively fitted to each other, otherwise, the positioning pins 14 and 15 and the positioning holes 16 and
17 is not fitted.

This embodiment is constructed as described above,
Since the lens portion 11 made of transparent resin is fitted to the light transmitting portion 2, the display mode of the numbers becomes three-dimensional and the fun is enhanced.

Further, depending on whether or not the protrusion 12 provided on the case 4 and the notch 13 formed on the printed board 9 are matched with each other, the LED chip 10 and the light transmitting portion 2, that is, the lens portion 11 are arranged in the front-rear direction and the lateral direction. The relative position of can be changed. That is, when the protrusion 12 and the notch 13 coincide with each other, as shown in FIG. 2, the printed circuit board 9 can be inserted into the case 4 and fixed on the stepped portion 8 and, at this time, the position of the LED chip 10. Coincides with the central axis of the light transmitting portion 2, that is, the lens portion 11.

On the other hand, when the projection 12 and the notch 13 do not match as in the case where the printed circuit board 9 is rotated 180 ° around the axis along the emission direction from the above state, as shown in FIG. The substrate 9 cannot be inserted into the case 4 and is fixed on the pair of protrusions 12, and the position of the LED chip 10 is displaced from the central axis of the light transmitting portion 2, that is, the lens portion 11. Therefore, the direction and angle of view of the light emitted from the light transmitting unit 2 change, and the display mode changes.

When the printed circuit board 9 is fixed on the stepped portion 8, the LED chip 10 is placed at the focal position of the lens portion 11.
Is located. In that case, the light emitted from the transparent portion 2 becomes parallel light, and in other cases, the light emitted from the transparent portion 2 becomes convergent light or diffused light, so that the display mode can be further changed.

Further, positioning pins 14 and 15 are provided on the inner surface of the front wall 3 of the case 4, positioning holes 16 and 17 are provided in the printed board 9, and the projection 12 and the notch 13 are provided.
, The positioning holes 16 and 17 are fitted into the positioning pins 14 and 15, respectively, and in that case, the position of the LED chip can be more accurately aligned with the transparent portion. .

The printed circuit board 9 has the step portion 8 and the protrusion 1.
2 is fixed on one side, the LED chip 10 is located on one side out of the focus position of the lens part 11, and when fixed on the other side, the LED chip 10 is the lens part 11
Since the light emitted from the lens unit 11 changes from one of the convergent light and the diffused light to the other by locating it on the other side deviated from the focal point position of, the display mode can be changed differently. You can

[0019]

As described above, the LED display according to the present invention has a practically important advantage that the display mode is three-dimensional and full of fun, and the display mode can be changed. is doing.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of an LED display according to the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3A is a back view of the case of the above embodiment,
(B) is a front view of the printed circuit board.

FIG. 4 is a cross-sectional view when the mounting position of the printed circuit board is changed in the above embodiment.

FIG. 5 is a perspective view of a conventional LED display.

6 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 LED display 2 Light transmitting part 3 Front wall 4 Case 6 Display part 8 Step part 9 Printed circuit board 10 LED chip 11 Lens part 12 Protrusion 13 Notch 14,15 Positioning pin 16,17 Positioning hole

Claims (4)

[Scope of utility model registration request] 1. A case in which a front wall is provided with a display section consisting of a light-transmitting section of a predetermined shape, a substrate fixed to a step section provided in the case, and a back section of the display section. LE consisting of a plurality of LED chips mounted on the substrate
In the D display, the translucent portion is formed into a lens shape using a transparent resin, a protrusion is provided at a position rearward of the step portion on the inner wall of the case, and a notch that corresponds to the protrusion is formed on the substrate. Then
When the protrusion and the notch match, the substrate is fixed on the stepped portion, and the position of the LED chip is aligned with the central axis of the translucent portion, and when the protrusion and the notch do not match, the substrate Fixed on the protrusion and the LED
The LED display is characterized in that the position of the chip is displaced from the central axis of the translucent part. 2. When the substrate is fixed on one of the stepped portion and the protrusion, the LED chip is located at a focal position of the lens-shaped light-transmitting portion, and when fixed on the other. The LED display according to claim 1, wherein the LED chip is arranged so as to be displaced from a focal position of the lens-shaped light transmitting portion. 3. When the substrate is fixed on one of the stepped portion and the protrusion, the LED chip is located on one side out of the focus position of the lens-shaped light transmitting portion and on the other side. The LED display device according to claim 1, wherein the LED chip is located on the other side of the lens-shaped light-transmitting portion out of the focus position when the LED display device is fixed to the LED display device. 4. The positioning pin is provided on the inner surface of the front wall of the case, and the positioning hole is provided in the substrate, and the positioning pin is fitted with the positioning hole when the protrusion and the notch match each other. The LED display according to any one of claims 1 to 3, wherein the LED display is configured as follows.