JPH01179074A - Display device - Google Patents

Abstract

PURPOSE:To easily realize the title relatively large-sized display device by cutting one end of a base body formed by bundling thin wires of transparent glass or resin having its flank coated with a reflective film and thus forming a display surface. CONSTITUTION:Light emitted by a light source 3 passes through a transmission type liquid crystal display device 2 and is made incident on corresponding acrylic resin thin wires 4. The light made incident on the acrylic resin thin wires 4 reaches the display surface 5 without leaking because the flanks of the acrylic resin thin wires are coated with aluminum thin films. The display surface 5 slants at about 30 to the base body 1, so the area of the display surface 4 is four times as large as the area of the incidence surface. Consequently, a displayed image increases in size by four times.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a relatively large optical display device.

[Technical background of the invention and its problems] As is well known, display devices that use light include CRT, PDP, etc.
There are various types such as DP, EL, and LCD, and they are widely used in fields that take advantage of their respective characteristics.However, there is currently no optimal technology for relatively large display devices, and large CRT, small display Combinations of devices, projection type display devices, etc. have been used, but all of them have the problem that the devices are large or very expensive.

[Object of the invention] This invention was made based on the above circumstances, and its object is to provide a relatively large display device without using special technology or expensive parts. .

[Summary of the Invention] This invention provides a display surface by cutting diagonally one end of at least one substrate, which is formed by bundling thin wires of transparent glass or resin whose side surfaces are coated with a reflective coating. Light is incident on the end face cut at a substantially right angle to obtain an enlarged display on the display surface.

[Embodiment of the Invention] An embodiment of the invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a display device according to the present invention, and FIG.
The figure is a sectional view thereof. - In the figure, l is a base made by bundling thin wire-shaped transparent acrylic resin 4 whose sides are covered with a thin aluminum film,
One end thereof is cut obliquely at an angle of about 30 degrees with respect to the base, and the cut surface 5 serves as a display surface.

The other end face of the base pair l is cut at an almost right angle and forms the entrance plane 6.
form.

A transmissive liquid crystal display device 2 is installed in contact with the entrance surface 6 .

In this case, the size of each display element of the transmission type liquid crystal display device 2 and the area of the end face on the incident side of the thin acrylic resin wire 4 are made to be the same, and they are installed at positions corresponding to each other one-to-one.

3 is an incandescent light bulb, which serves as a light source for this display device.

Light emitted from the light source 3 passes through the transmission type liquid crystal display device 2 and enters the corresponding acrylic resin thin wires 4.

The light incident on the thin acrylic resin wire 4 reaches the display surface 5 with almost no leakage to the outside because the side surfaces of the thin acrylic resin wire 4 are coated with a thin aluminum film.

As mentioned above, since the display surface 5 forms an angle of about 30 degrees with respect to the base 1, the surface roughness of the incident end surface 6 is set as A, and the display surface 5
If the area of 4 times as much.

Therefore, the size of the displayed image is also four times larger.

In this embodiment, the case where there is one base body 1 has been explained, but as shown in FIG.
If a plurality of them are used, a display device with an even larger screen can be obtained.

Furthermore, in this embodiment, an example was explained in which the side surfaces of the thin acrylic resin wire 4 were coated with a thin aluminum film, but it was also possible to coat them with a different type of resin having a refractive index lower than that of the acrylic resin so that total reflection would occur at the interface. Alternatively, if an optical fiber is used instead of the thin acrylic resin wire 4, there is no need for a reflective coating.

In this embodiment, the case where the thickness of the thin acrylic resin wire is uniform has been explained, but as shown in FIG.
If the cross-sectional area of the display end 5 is made larger, the magnification ratio for one display can be further increased.

Further, in this embodiment, the case where the acrylic thin wires 4 are in close contact with each other has been described, but as shown in FIG.
If they are arranged with a slight spacing near the display end surface 5, the magnification can be further increased.

Furthermore, in this embodiment, the case where the thin acrylic resin wires 4 are individually separated has been explained, but as shown in FIG.
Similar results can be obtained even if tape-shaped resins with ``＊＊＊'' are not piled up.

Furthermore, in this embodiment, all of the thin acrylic resin wires 4 on the display end surface 5 are cut at the same angle, but as shown in FIG. is obtained.

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As described in detail above, according to the present invention, a relatively large display device can be easily realized without using any special technology or parts.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of a display device according to the present invention, and FIG. 2 is a sectional view thereof. Fig. 3 shows an example in which a plurality of substrates are used, Fig. 4 shows an example in which the cross-sectional area of the thin glass or resin wire is different between the incident end and the display end, and Fig. 5 shows the case where the cross-sectional area of the glass or resin thin wire is different between the incident end and the display end. Fig. 6 shows a tape-shaped resin with a separation groove covered with a reflective coating, and Fig. 7 shows a case where the spacing between the glass or resin thin wires differs at the end. Shows different angles. 1--Substrate 2--Transmission type liquid crystal display 3-M-Incandescent light bulb 4.4', 4''*** Thin wire of glass or resin coated with reflective coating 5-7-Display surface 6- --Incidence surface (end) 7.7゛, 7"＊＊＊--One-minute extinguisher

Claims (5)

[Claims] (1) One end of at least one base body made of a bundle of thin wires of transparent glass or resin coated with a reflective coating on multiple sides is cut diagonally to serve as a display surface, and the other end is cut at an approximately right angle. A display device characterized in that light is incident on the edge surface of the display to obtain an enlarged display on the display surface. (2) The display device according to claim 1, wherein the base body is formed by bundling optical fibers. (3) The display device according to claim 1, wherein the cross-sectional area of the thin line of transparent glass or resin whose side surface is coated with a reflective coating is larger at the display surface end than at the incident end. (4) The display device according to claim 1, wherein the distance between thin lines of transparent glass or resin whose side surfaces are coated with a reflective coating is larger at the reflective surface end than at the incident end. (5) The display device according to claim 1, wherein the thin lines of transparent glass or resin whose side surfaces are coated with a reflective coating are cut at different angles at the ends of the reflective surfaces.