JPH048461Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a display device whose contents can be freely changed.

"Problems to be solved by conventional techniques and inventions" Conventional display devices of this type consist of a display section equipped with a light source such as a large number of lamps, and a control section that controls the lighting of the light source of the display section. , the display section and the control section are electrically connected to each other by a wiring cord.
However, in this type of display device, the circuit configuration of the control section is extremely complicated and the price is high. Moreover, the display unit has a large number of light sources, and they are usually installed with a considerable distance between them, such as installing the control unit indoors and the display unit outdoors. In order to perform maintenance on cutting and other issues, it is necessary to monitor not only the control section but also the display section, which is extremely complicated. Furthermore, conventional display devices not only have a large number of light sources in the display section and are thick and large;
The cost of the entire device is extremely high, and the cost of maintenance and management is also high, making it unsuitable for displays that require only a small and simple device.

Therefore, in view of the above circumstances, the present invention uses one light source and a liquid crystal to input information to be displayed, and transmits the information to a display panel via an optical fiber cable and displays it. To provide a display device which can perform electric display not only on large ones but also on small display panels, can be manufactured at low cost, and is easy to maintain and manage.

"Means to be Solved by the Invention" In order to achieve the above object, the present invention includes a liquid crystal device for inputting information in which information is depicted by a liquid crystal control circuit in a light source, and a liquid crystal device for inputting information by receiving the light from the light source. Lenses that form an image of the information depicted by the liquid crystal device for use are arranged opposite to each other, and the input end of an optical fiber cable, which is a bundle of many optical fiber strands, is arranged at the position where the image is formed by the lens. The output end of each optical fiber strand of the fiber cable is fixed at appropriate intervals on one side of a transparent display panel, and a number of lenses are placed on the other side of the display panel facing the output ends of each optical fiber strand. It is characterized by a display device that is integrally formed.

"Example" Below, an example of the display device according to the present invention will be described based on the drawings. 1 and 2 show a first embodiment, in which 1 is a control section and 2 is a display panel. The control unit 1 has one light source 3 such as a halogen lamp. The light source 3 has a reflector 4 disposed on its rear surface and emits light forward. In front of the light source 3, information input liquid crystal devices 6 are sequentially disposed via a heat ray absorption filter 5. The information input liquid crystal device 6 is connected to a liquid crystal control circuit 7, and the liquid crystal control circuit 7 is adapted to draw a display 8 as information such as characters and symbols. The above information input liquid crystal device 6
The light emitted from the light source 3 is transmitted only through the part of the display body 8 such as characters depicted by the character, and the light emitted from the light source 3 is not transmitted through other parts of the display body 8 but is reflected. It's summery. The above liquid crystal control circuit 7
The display body 8 depicted by the information input liquid crystal device 6 can be freely changed. An input end of an optical fiber cable 10 is disposed in front of the information input liquid crystal device 6 via an imaging lens 9. The imaging lens 9 is for forming a light image drawn by the information input liquid crystal device 6 and passing through the display 8 onto the input end of the optical fiber cable 10. The optical fiber cable 10 is a bundle of many optical fiber wires. The output end of the optical fiber cable 10 is connected to the rear surface of the display panel 2 so as to be arranged in the same position as the optical fiber wires 10a at the input end. The display panel 2 is made of a transparent material such as acrylic resin, and has a hole 11 of a predetermined depth provided in its rear surface, into which the output end of each optical fiber wire 10a of the optical fiber cable 10 is inserted and fixed. do. It is also possible to bundle a plurality of optical fiber strands 10a into each hole 11 and fit and fix the bundled optical fiber strands 10a. A large number of lenses 1 are provided on the surface of the display panel 2, facing the position of each optical fiber element 10a.
2 are formed continuously without any interruption.

In the above display device, the liquid crystal control circuit 7 causes the information input device 6 to depict various information such as characters and symbols, and the light passing from the light source 3 to the information input liquid crystal device 6 via the heat ray absorption filter 5 is , an imaging lens 9 forms an image of the information depicted by the liquid crystal control circuit 7 on the input end of the fiber optic cable 10. The optical fiber cable 10 optically transmits information imaged at the input end to the output end.
As a result, light corresponding to the above information is emitted from the output end of the optical fiber wire 10a, and is emitted to the outside via the lens 12. The lens 12 magnifies the information emitted from each optical fiber strand 10a and makes it easy to see so that there is no gap between the optical information emitted from each optical fiber strand 10a.

FIG. 3 shows a second embodiment, in which a liquid crystal control circuit 7 causes an information input liquid crystal device 6 to depict information in a positive image. The light source 1 irradiates the information input liquid crystal device 6 through the heat absorption filter 5. The information input liquid crystal 6 reflects only information such as drawn characters and symbols, and an imaging lens 9 forms an image of this reflected light on the input end of an optical fiber cable 10. Thereafter, information is optically transmitted to the output end of the optical fiber cable 10 and displayed on the display panel 2 in the same manner as in the first embodiment.

FIG. 4 shows a third embodiment, in which a plurality of display panels 2a to 2n are connected to the control section 1 through a distributor 13.
is connected. That is, the distributor 13 is connected to the control unit 1 via the optical fiber cable 10, and the optical fiber distribution cable 1 is connected to the distributor 13.
Display panels 2a to 2n are connected via 4a to 14n. Like the optical fiber cable 10, it is made up of a large number of wires bundled together. Each of the display panels 2a to 2n includes a lens 12 of the display panel 2.
It goes without saying that the optical fiber distribution cables 14a to 14n are connected in the same way.

The optical information from the control unit 1 is transmitted to each of the display panels 2a to 2n via the optical fiber cable 10, the distributor 13, and the optical fiber distribution cables 14a to 14n. and each display panel 2a-2
n is arranged on the road or on the road shoulder, and displays traffic information and traffic signs from the control unit 1 on display panels 2a to 2.
It can be used for transmitting and displaying to n. Especially when used for road traffic information that displays traffic information and traffic signs that change depending on the time of day,
The content to be displayed can be controlled from one place, and it does not require much equipment or maintenance costs.

"Effects of the invention" As described above, according to the display device according to the invention,
A liquid crystal device for information input is interposed between the light source and the input end of the optical fiber cable, and a display panel is connected to the output end of the optical fiber cable, so that a single light source and liquid crystal can be used. Information that changes depending on the time of day can be transmitted to the display panel using an optical fiber cable and displayed.The information in the information input liquid crystal device is once imaged by a lens at the input end of each fiber, and Since the output ends are fixed on one side of a transparent display panel at appropriate intervals, and a lens is integrally provided on the other side of the display panel to face each fiber strand, it is possible to directly connect the optical fiber strands. Compared to a device that inputs information to the input terminal of the device, it is possible to maintain the desired resolution and can be expected to have higher brightness, and it can be displayed electronically on not only large but also small display panels, and it is inexpensive to manufacture. It is very convenient to use, as it is easy to maintain and manage.

[Brief explanation of the drawing]

The drawings show an embodiment of the display device according to the present invention, FIG. 1 is a configuration diagram of the display device showing the first embodiment, FIG. 2 is a configuration diagram of main parts of the control section shown in FIG. 1,
FIG. 3 is a main part configuration diagram of a control section showing a second embodiment;
FIG. 4 is a configuration diagram of a display device showing a third embodiment. DESCRIPTION OF SYMBOLS 1... Control part, 2, 2a-2n... Display panel, 3... Light source, 4... Reflector, 5... Heat ray absorption filter, 6... Liquid crystal device for information input, 7...
...Liquid crystal control circuit, 8...Display body, 9...Imaging lens, 10...Optical fiber cable, 10a...
Optical fiber wire, 11...hole, 12...lens, 13...distributor, 14a to 14n...optical fiber distribution cable.

Claims (1)

[Scope of utility model registration request] A light source is provided with an information input liquid crystal device on which information is depicted by a liquid crystal control circuit, and a lens that receives light from the light source and forms an image of the information depicted on the information input liquid crystal device, The input end of an optical fiber cable, which is a bundle of a large number of optical fiber strands, is arranged at the position where the image is formed by the lens, and the output end of each optical fiber strand of the optical fiber cable is appropriately placed over the entire surface of the transparent display panel. A display device characterized in that a large number of lenses are fixedly installed at intervals and are integrally formed on the other surface of the display panel so as to face the output end of each optical fiber strand.