JPS61182085A - Display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Subject of the Invention) The present invention relates to a display device in which photographs, printed matter, etc. emit light by themselves, and is used for decoration or as a medium for advertising and promotion.

(Prior Art) Color film photographs and printed matter have conventionally been used for interior decoration in hotels and department stores, and as advertising media in subway stations and shopping streets. However, since these do not emit light by themselves, the content of the image becomes difficult to see at night or when the lighting is turned off, and even with a moderate amount of lighting, the brightness and saturation are limited. There is. To improve this,
There is a device that makes these film photographs and printed matter transparent or translucent, and attaches them to a display panel containing a built-in lighting device such as a fluorescent light, so that a clear image can be obtained by the light transmitted from the back side. . However, these conventional devices are very large-scale, large in shape and weight, and it is troublesome to install and remove the device and to attach film photographs, etc. to the device, making it difficult to use. However, its scope of use was limited due to issues such as appearance and cost.

(Problems to be Solved by the Present Invention) The present invention makes it possible to make photographs, printed matter, etc. emit light by themselves, so that clear images can be obtained without using any other special external illumination device. Moreover, it is an object of the present invention to provide a display device that is easy to handle and has a good appearance.

(Technical means for solving the problem) The technical means of the present invention is to display a laminated display by aligning a transparent or translucent image film 11 having a desired image and a notebook-shaped electroluminescent device 13. The laminated display body 2 is laminated with a transparent resin film 3 over both surfaces thereof.

(Example) Embodiments of the present invention will be described below based on the drawings.

In FIG. 1, a display device 1 is constructed by laminating a later-described lli layer display body 2 with a transparent resin film 3 over both sides, and two electrode parts 4.4 are formed by cords 5.
, a connector 6.7, and a cord 8 to a power supply device 9. 10 is a power cord.

In FIG. 2, a laminated display body 2 includes a transparent photographic film 11 having a desired image and a sheet-like electroluminescent element 1.
3 and are laminated together with a transparent double-sided adhesive tape 12 interposed therebetween. The photographic film 11 may be transparent for transmitted light, or may be translucent using a milky white support, or may be a printed transparent or translucent film instead of the photographic film 11. Further, the double-sided adhesive tape 13 can also be omitted.

The electroluminescent element 12 is generally called an EL element, and its entire surface emits light by applying a voltage. It is generally a sheet-like body consisting of a metal electrode and a transparent electrode, with a dielectric layer containing phosphor powder sandwiched between them, and having a total thickness of one to several fins. Metal electrodes include aluminum or iron, fluorescent powders include zinc sulfide,
Zinc selenide sulfide, zinc cadmium selenide sulfate, etc. are used, and these can be formed into a thin film on a suitable substrate by sputtering or the like. Further, depending on the type of phosphor powder, it is possible to select a luminescent color such as white, red, green, or blue. This electroluminescent element 12 may have the same area as the photographic film 11, may be divided into a plurality of parts and can be controlled to emit light separately, or may have a smaller area than the photographic film 11. It may be the other way around.Furthermore, a special effect can be created by controlling the light emitting point of the electroluminescent element 12 using an X-Y matrix to create a light emitting image and overlapping this with the image on the photographic film 11. It is also possible.

The resin film 3 is a resin film 3a, 3b with a slightly wider surface bond on both sides of the laminated display body 2, and is bonded by thermocompression to both sides of the laminated display body 2, and the peripheral areas of the resin films 3a, 3b are bonded to both sides of the laminated display body 2. 3c are bonded together by thermocompression, and in this example, a processing method generally called lamipak is used.

The display device l having the above configuration is formed into a flexible sheet-like body as a whole, so it is small in thickness, lightweight, easy to install and remove, and has a good appearance. At the same time, when power is supplied from the power supply device 9, the photographic film 11 integrally emits light due to the light emission of the electroluminescent element 13, and a clear image can be obtained.The brightness of the image depends on the voltage or frequency of the power supply device 9. It can be adjusted by changing .

In the above-mentioned display device 1, even though the photographic film 11 is transparent, the electroluminescent element 13 is stacked on the back side of the photographic film 11, so the color of the surface of the electroluminescent element 13 when not emitting light is set to an appropriate value. By doing so, it is possible to obtain a somewhat good image even with reflected light from external illumination. The display device 1 described above has integrity and flexibility, so it can be easily installed on flat surfaces such as walls, ceilings, floors, etc., or even on curved surfaces, and after installation, it has high strength. It is highly durable, has few breakdowns, and is also waterproof, making it easy to use outdoors. In addition, since light is used efficiently, less energy is required for illumination, and the electroluminescent element 13
It is also possible to use a laminated display body in which both sides emit light and image films are disposed on both sides.

(Effects of the Invention) According to the present invention, the image film emits light integrally by the electroluminescent element, and a clear image can be obtained without using a special external illumination device. A display device with good appearance can also be obtained. Therefore, by adjusting the image to suit your needs,
It can be effectively used as a medium for interior decoration, promotion or advertising.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view, and FIG. 2 is an enlarged sectional view showing an end of the display device of FIG. 1. ■... Display device, 2... Laminated display body, 3.3a,
3b...4HJIB film, 11...Shakan film (image film), 13...Electroluminescent element.

Claims (1)

[Claims] A display device formed by laminating a transparent or translucent image film having a desired image and a sheet-like electroluminescent element to form a laminated display body, and laminating the laminated display body with transparent resin films on both sides.