JPH046059Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a display device suitable for implementation as a warning display device attached to a vehicle such as an automobile.

[Prior art]

An automobile warning display device that displays warnings such as brake failure, battery check, oil check, lamp failure, etc. is generally constructed as shown in FIG. That is, 1 is a case body which is divided into, for example, three indicator light chambers 3a, 3b, and 3c by a partition wall plate 2, and display items are displayed in the front opening of the case body 1 in each indicator light chamber 3a, 3b, and 3c. For example, if a brake failure has just occurred, only the light source 5 in the indicator light chamber corresponding to the display section to display this will be turned on, and the corresponding light source 5 will be turned on. The display unit is configured to provide bright illumination display.

However, in such conventional warning display devices, when a situation requiring a warning occurs, only the display section that indicates the situation is illuminated to draw the driver's attention, and the other display panels 4 are colored to prevent misidentification. Because the displayed characters, symbols, etc. are made unreadable by
This system had the disadvantage that the driver did not know what other warning items were there, and as a result, the driver's attention became distracted.

[Summary of the idea]

The present invention has been developed in view of the above-mentioned points, and is made of a transparent material and has a plurality of character display parts, and a light shielding film is provided on the back side of the part other than the part corresponding to the character display part. The formed display board is disposed in the opening of the case body, the same number of light sources as the character display parts are disposed in the case body corresponding to each character display part, and a light shielding film is provided on the entire circumferential surface of each. The number of light guides is the same as that of the character display parts, one end of which is exposed near the character display part on the surface of each display board to form a display part, and the other end of which faces each light source in close proximity to the character display part. It is an object of the present invention to provide a display device which allows all display items to be known by being disposed within the case body, and also allows reliable identification of illuminated display items.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

〔Example〕

FIGS. 2a and 2b are a front view and a sectional view showing an embodiment of the present invention applied to a warning display device, and FIG. 3 is a perspective view of a light guide. In these figures, the display board 4 disposed at the front opening of the case body 1 is made of a transparent material such as acrylic resin, and the back side has "HEAD" and "HEAD" for displaying display items (contents). "TAIL" character display section 10a,
A light-shielding film 11 is provided except for 10b, and small holes 12 are provided between "A" and "I" and "E" and "A" of each character display section 10a, 10b, respectively.
a, 12b are formed.

Two light sources 13a, 13b are disposed on the inner surface of the rear wall of the case body 1, corresponding to each of the small holes 12a, 12b, and both light sources 13a,
A wall 14 is integrally provided and protrudes between the holes 13b. This wall 14 extends to near the center of the interior of the case body 1, thereby making the light sources 13a and 13b invisible to each other and reducing the influence of direct light.

Reference numerals 15A and 15B are light guides that characterize the present invention, and these light guides 15A and 15B are made of a transparent material made of acrylic resin and are formed into a cylindrical shape, with the exception of both end surfaces 16a, 16b, 17a, and 17b. The entire peripheral surface is covered with a light shielding film 18, respectively. Further, the tips of each of the light guides 15A and 15B form small diameter portions 19 (see FIG. 3), and these small diameter portions 19 are fitted into the small holes 12a and 12b from the back side of the display panel 4. Moreover, it is fixed to the display board 4 by adhesive, welding, or the like. For this reason, the front end surfaces 16a, 1 of each light guide 15A, 15B
7a is exposed on the surface of the display board 4 to form a round display section. On the other hand, the rear end surfaces 16b and 17b of each of the light guides 15A and 15B are closely opposed to the light sources 13a and 13b, respectively.

In the warning display device having such a configuration, the front end surface 16a is brightly illuminated by the light guided into the light guide 15A when the light source 13a is turned on, thereby forming a display section. At the same time, the character display section 10a,
10b is also brightly illuminated because it is within the direct radiation range of the light source 13a. In this case, the front end surface 17a constituting the display section of the light guide 15B is also within the direct range of the light source 13a, but the light is blocked by the light shielding film 18 of the light guide 15B and the wall 14 light source 13
Since the light a is prevented from entering the light guide 15B from the rear end surface 17b of the light guide 15B, it is not illuminated. Here, the character display parts 10a, 10b are illuminated simultaneously to make these display parts 10a, 10b visible and readable, but by brightly illuminating the display part 16a, that is, the front end surface of the light guide 15A, the characters The information displayed on the display unit 10a, that is, informs you that the headlights are out.

On the other hand, when the light source 13b is turned on, the front end surface 17a is brightly illuminated by the light guided to the light guide 15B, and at the same time, the character display parts 10a and 10b are also illuminated by direct light.
Regarding a, direct light is blocked by the light shielding film 18 of the light guide 15A, so it is not illuminated. Therefore, in this case, the illumination of the display section 17a indicates that the taillight is out.

As a result, it is possible to know all the contents of the display items, and it is also possible to determine which display item an abnormal situation has occurred according to the illumination of the display sections 16a and 17a, and it is possible to prevent misidentification of an abnormal situation. .

FIG. 4 is a cutaway perspective view showing another embodiment of the present invention. In this embodiment, three light guides 15A, 15B, 15C formed in a plate shape and a light guide plate 25 are used to illuminate a plurality of display sections. , 10b, rectangular display portions 26a, 26b, 26c are formed corresponding to each of the light guides 15A, 15B, 15C. Among these display sections 26a, 26b, and 26c, the display section 26a is connected to the light source 13a, and the display section 26
b, 26c are provided corresponding to the light source 13b, but the display parts 26a and 26c are provided corresponding to the light source 13b.
Since it is deformed by shifting from a and 13b,
The light guides 15A and 15C are bent. Note that the display portions 26a and 26b are comprised of light-transmitting portions of the display board 4 itself (portions to which the light-shielding film 11 is not applied), and the display portion 26c is comprised of the light guide 15C.

The light guide plate 25 is made of a light-transmitting material like the display plate 4, and is closely arranged on the back surface of the display plate 4, and its peripheral edge is bent inward along the inner surface of the case body 1. There is. On the back surface of the light guide plate 25, a large number of stipples 28, which are small conical recesses and diffusely reflect the light from the light sources 13a and 13b, are formed at locations corresponding to the character display sections 10a and 10b. Furthermore, through holes substantially the same as those of the display portions are formed at locations corresponding to the respective display portions 26a, 26b, and 26c of the light guide plate 25,
Each of the light guides 15A, 15B, 15 is inserted into each through hole.
The front end of C is fitted and ultrasonically welded.
In this case, the front end surfaces of the light guides 15A and 15B are fixed to the back surface of the display board 4, and the front end of the remaining light guide 15C is fitted into the hole formed in the display board 4 as in the above embodiment. It is exposed on the surface of the display board 4 to form a surface portion 26c. Note that the tip of the peripheral edge 25a of the light guide plate 25 is cut into a substantially V shape to form a light incident surface 30 and a reflective surface 31. Furthermore, a colored filter 33 of red, yellow, etc. is fixed to the inner end surface of the light guide 15B. moreover,
It goes without saying that the light shielding film 18 is applied to the entire surface of each light guide plate 15A, 15B, 15C except for both end surfaces. In this case, the light shielding film 18 is not limited to painting, and may be a light shielding tape.

In such a configuration, the light sources 13a and 13b
When either (or both) lights up,
Since light is guided into the interior through the incident surface 30 of the light guide plate 25, the entire back surface of the display panel 4 is illuminated by the light guide plate 25. In this case, for example, if the light source 13a is turned on, the light guided into the light guide plate 25 is attenuated and weakened on the way, so the character display section 10b that is far away from the light source 13a is replaced by the character display section on the light source 13a side. Compared to 10a, the illumination is sufficiently dim (but bright enough to be readable) to prevent misidentification of an abnormal situation. In addition, since the stipples 28 corresponding to the character display section 10a sparkle when receiving strong light, the brightness and darkness of both display sections 10a and 10b are made even more distinct.
Facilitate identification of warning signs.

Note that the illumination of the display sections 26a, 26b, and 26c by the light guides 15A, 15B, and 15C is performed in the same manner as in the above embodiment, and therefore a description thereof will be omitted.

Although the above embodiments have all been described with reference to the case where they are applied to a warning display device, the present invention is not limited to this, and the present invention is not limited to this. Any display device that illuminates the screen may be used.

[Effect of idea]

As explained above, the display device according to the present invention is
A case body, a display plate made of a translucent material having a plurality of character display parts, a light-shielding film formed on the back surface, and closing an opening of the case body, and a display plate having a plurality of character display parts respectively corresponding to the character display parts inside the case body. A plurality of light sources are arranged in the same direction, and a light shielding film is formed on the entire circumferential surface of each of the light sources, one end of which is exposed near the character display section on the surface of each of the display boards, thereby forming a display section, and the other. Since it is composed of a plurality of light guides whose ends closely face each light source, an illuminated portion and a non-illuminated portion can be formed within the direct radiation range of one light source. Therefore, all of the displayed items can be confirmed, there is no risk of misidentifying the displayed items due to the illumination section, and identification performance can be improved, making it suitable for use in automobile warning display devices, etc. Furthermore, the structure of the light guide is simple and easy to manufacture and assemble.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a conventional warning display device, FIGS. 2 a and b are a front view and sectional view showing an embodiment of the present invention, FIG. 3 is a perspective view of a light guide,
The figure is a cutaway perspective view showing another embodiment of the present invention. 1...Case body, 4...Display board, 10a, 1
0b... Character display section, 11... Light shielding film, 12a,
12b...Small hole, 13a, 13b...Light source, 15
A, 15B, 15C...light guide, 16a, 17a
... Display section, 18 ... Light shielding film, 25 ... Light guide plate.

Claims (1)

[Scope of utility model registration request] A display board made of a transparent material and having a plurality of character display parts and having a light-shielding film formed on the back side of the part other than the part corresponding to the character display part is disposed in the opening of the case body, The same number of light sources as the character display parts are disposed in the case body, corresponding to each character display part, and a light shielding film is formed on the entire circumferential surface of each of the character display parts, and one end is formed on the surface of each of the display boards, and the light sources are arranged in correspondence with each character display part. A display device characterized in that the same number of light guides as the character display portions are disposed within the case body, the display portion being formed by being exposed in the vicinity of each light source, and the other end facing each light source in close proximity to the character display portion.