JPS5825407Y2 - display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel display device capable of enlarging and projecting information recorded on a recording medium by a recording means immediately after recording.

A display device according to the present invention will be described below with reference to the drawings.

The schematic structure of this display device is as shown in FIGS. 1 and 2, respectively, as shown in FIG.
The recording medium 10 on which the content is recorded according to the situation signal is transferred into the optical projection means 30 after recording, and the recorded situation content is transferred to the optical projection means 30. The display device T is constructed by disposing a screen 40 on which the image is enlarged and projected through the optical projection means 30.

Next, we will provide a step-by-step explanation of each of these components.

First, as shown in FIG. 3, a thin film recording medium 10 suitable for use in the present invention is formed on a main plane 1a of a transparent substrate 1 made of a synthetic resin material such as Mylar or polyethylene. An opaque conductive layer 2 made of aluminum or the like is formed by a well-known method such as vapor deposition or printing, and in this case,
The base body 1 has a thickness of 20 to 50μ, particularly about 25μ,
On the other hand, the conductive layer 2 is formed as a thin film-like recording paper whose thickness is selected to be about 1 to 2 microns.

Therefore, if a predetermined voltage is applied between the conductive layer 2 and the recording electrode (not shown), the conductive layer 2 facing the recording electrode will be destroyed by current conduction (including discharge destruction), and will respond to the scanning of the recording electrode. Information content having combinations of letters, numbers, symbols, etc., will be recorded on this recording medium 10.

Therefore, this recording medium 10 is configured as an energized recording paper, and therefore, in the following description, the recording medium 10 will be explained as an energized recording paper.

In FIG. 3, 3a, 3b, . . . indicate drilled holes (in the form of dots or lines) that are the information content obtained by this current destruction.

The specific configuration of the recording means 20 for recording information contents on the energized recording paper 10 will be described next.

The recording means 20 in this example is a commonly known typewriter device as shown in FIG. 1, and in this case,
Since the recording medium 10 is formed as an energized recording paper,
This typewriter device is configured to perform energization recording.

Although a detailed explanation of the configuration of each part of this recording means 20 will be omitted, 4 is a device case, 5 is an operation key, 6 is, for example, a spherical printed body, and 7 is an energized recording paper 10 which is a recording paper.
This is the platen on which the material is wound.

Here, the printed body 6 is formed of a metal material as is well known, and has A, B, C, .・Characters such as 1.2.3・
Numbers 11, such as ・・・・・・・・・
・Prints such as symbols such as (for convenience of illustration, these prints are shown as dots) are provided, and these prints are selected in accordance with the keystroke operation of the operation key 5 and then placed on the platen 7. It is something that is designed to come into contact with you.

In the present invention, since the information content is recorded using the energization record, a predetermined voltage is applied between the energization recording paper 10 and the printed body 6, so that the printed body 6 It provides the same function as a normal conductive recording head provided with a plurality of needle electrodes, and in the following description, this printed body 6 will be referred to as a recording head.

Therefore, the above-mentioned characters and numbers formed on the printed body 6,
Each symbol body is used as an electrode for energization.

The energized recording paper 10 is intermittently and sequentially transported by a desired length in a desired direction by a transfer means 50.

That is, as shown in the figure, this energized recording paper 10 is wound around a supply roller 8 that is rotatably and removably attached to, for example, the right side of the platen 7, so that this energized recording paper 10
wraps around the outer periphery of the platen 7, is further transported above the recording means 20 via guide bodies 9a to 9c arranged above the platen 7, and is taken up by the take-up roller 11.

Here, the transport path between a guide body 9a disposed adjacent to the platen 1 and a pair of guide bodies 9b and 9c disposed above it so as to sandwich the energized recording paper 10 is compared. Selected for long periods of time.

The reason why this transport path l was selected to be relatively long is that when the recorded information content is to be enlarged and projected as described later, an optical image obtained based on a beam of light irradiated across the transport path l. This is to make the pattern (which refers to a pattern according to the recorded information content) to a certain extent.

In this way, the electrically conductive recording paper 10 is wound between the supply roller 8 and the take-up roller 11, and the electrically conductive recording paper 10 is wound with the electrically conductive layer 2 on the outside so that the metal layer 2 faces the recording head 6. Of course.

Now, a predetermined DC voltage (12V) is applied between the electrode of one of the guide bodies 9a, 9c in contact with the conductive layer 2, for example, the upper guide body 9c, and the recording head 6 so that the guide body 9c becomes negative. When the power source (12a indicates a power supply means) is applied, the recording head 6 is energized and the recording paper 10 is
By bringing it close to or in contact with, the proximal or contacting portion is destroyed by electricity. For example, when the operation key 5 is operated and so-called typing is performed, electricity is destroyed in accordance with the printing as shown in FIG.

In this case, since the conductive layer 2 constituting the current-carrying recording paper 10 is opaque and the base 1 has translucency, the portion destroyed by current application becomes a light-transmitting portion, and therefore, this light-transmitting portion appears as it is as a light image. .

The energized recording paper 10 on which the energization has been recorded is transported upward by a predetermined amount by the rotation of the take-up roller 11 in the direction of the arrow (clockwise), and the transport path l thereof is configured to exist within the projection means 30. .

Next, an explanation will be added about the projection means 30, but since it is constituted by an optical system in which a plurality of lenses are combined, the explanation will be given along the optical path starting from the light source 14.

In FIG. 1, reference numeral 15 indicates a light source section as a whole, which has a light shielding body 16, above which the light source 14 described above is arranged.

A concave mirror 17 whose center of curvature is located at the light source 14 is disposed around the outer periphery of the light source 14, and reflects the light emitted behind the light source 14 to create an image of the light source 14 near the light source 14 for effective use of light. ing.

After the light diffusion angle of the light emitted from the light source 14 is reduced by a condenser lens 18, the light is guided to a Fresnel lens 21 through a reflecting mirror (sometimes) or a mirror 19, where the light is converted into parallel rays. Corrected.

The above-mentioned energized recording paper 10 is transported into the gap between the Fresnel lens 21 and the field lens 22 disposed opposite to each other, so that the above-mentioned energized recording paper 10 is transported approximately parallel to these opposing surfaces. The information content recorded on the energized recording paper 10, that is, the information pattern which is a collection of light transmitting parts, is reflected by the reflecting mirror 23, the main lens 24, and the pair of reflecting mirrors 25a.
, 25b to the field lens 26, and then projected.

In this case, since the energizing recording paper 10 has a mirror surface, the light that hits other than the light transmitting/receiving part of the energizing recording paper 10 is reflected, and when it enters the energizing recording paper 10, it becomes a parallel light beam.
Since the light returns along the same path and is reflected again by the concave mirror 17, the light can be recycled.

Note that 31 and 32 indicate the case of the display device T.

As described above, the optical image based on the information content recorded on the energized recording paper 10 is projected onto the transparent screen 40, so that the recorded information content can be enlarged and displayed for the eye.

Note that the person who should record the information, that is, the typist, cannot directly view the information content because the screen 40 is placed on the opposite side as shown in the figure, but this display device T can be configured as follows. For example, the typist himself or herself can directly observe the information content.

That is, as shown in FIG. 4, a platen in which a transparent body 7B having a predetermined thickness is formed on the outer periphery of an opaque main columnar body 7A is used as the platen 7. If a light source 28 (see FIG. 1) is placed close to the transparent body 7B and light is guided into the transparent body 7B, the energized recording paper 10 will be illuminated from the back side through the transparent body 7B, so that the recorded information content will be be able to see directly.

Further, the entire light source section 15 is configured to be able to move up and down (in the direction of arrow a), and when necessary, the knob 29a is turned on.

29b (see Fig. 2) to excite the light source section 15 to the point shown by the dashed line, the part facing the field lens 22 can be seen directly, and the information content can be similarly determined. Therefore, in this case, if a manual needle electrode (not shown) is used on land, it becomes possible to newly write information contents on the current-carrying recording paper 10 using the field lens 22 as a base.

Note that when the light source section 15 is moved to the one-dot chain line, an auxiliary power switch (not shown) of the light source 14 is placed close to the housing 16, and the light source 14 is automatically turned off when the light source section 15 is moved. It may be configured to do so.

As explained above, in the present invention, an energized recording paper 10 having a conductive layer 2 adhered to a transparent substrate 1 is used, and a recording means 20 such as a typewriter is used to energize and record on the paper.
The recorded information content is enlarged and projected onto a screen 40 through a projection means 30.

Therefore, according to the display device T of the present invention, it becomes possible to immediately enlarge and display recorded information contents, and therefore, the device of the present invention is extremely suitable for application to small-scale bulletin board devices and the like.

Of course, if Terex's automatic Q-bit information signal printing device is used as the recording means 20, the information signal sent will be automatically recorded on the energized recording paper 10, and in addition to the effect of being able to save it, the same Since the information content can be automatically shown to a large number of people, it can also be used as an electronic bulletin board.

Therefore, the present invention can be applied to various uses and can be used in a wide range of applications.

Further, the current-carrying recording paper 10 has a transparent substrate 1 as shown in FIG.
and the conductive layer 2, only the light-transmitting part becomes an information signal. Therefore, in this enlarged projection, only a pattern corresponding to the information content is projected onto the screen 40, so that the contrast of the optical image is improved. Well, you will be able to increase the resolution.

If the platen 7 is constructed as shown in FIG. 4, the typer himself/herself can directly see the information content, which is very unique to the J type.

In addition to the above effects, the present invention also has the following features.

(1) Since energized recording paper 10 is used as the recording medium, information can be stored permanently.

In other words, a copy is obtained.

(2) Since the energized recording paper 10 can be used as it is as a positive film, it can be used as a positive slide, and therefore, this display device T can also be used as a slide projector.

(3) Since a slide projector is installed in the projection means 30 and the slide image can be projected onto the screen 40 as a background image, even more effective projection can be performed.

Note that the structure can be distantly related using well-known means, so a description thereof will be omitted.

Note that in the above-described embodiment, the recording head 6 may use a column-shaped print body with letters, numbers, symbols, etc. printed on its outer circumferential surface, instead of the spherical print body shown in FIG. 1. Often, a conventional keeper may be used as the recording head 6.

That is, it is not limited to a typewriter device used as the recording means 20.

Even if the light source 28 that irradiates the platen 7 is built into the platen 7, the effect that the information content can be immediately read is not lost.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing an example of a display device according to the present invention;
Figure 2 is a front view, Figure 3 is a sectional view of the recording medium, and Figure 4 is a front view of the recording medium.
The figure is a perspective view showing an example of a platen, and FIG. 5 is a plan view of a recording medium showing information contents recorded with electricity. T is a display device, 6 is a recording head, 9c is an electrode, 12 is a power source, and 30 is an optical projection means.

Claims (1)

[Scope of utility model registration request] A transport means for transporting a thin film recording medium having an opaque conductive layer coated on a transparent substrate; a conductive recording head provided in close proximity to or in contact with the recording medium; and a conductive head of the recording medium. an electrode provided so as to be in electrical contact with the layer; a power source for supplying voltage between the electrode and the recording head; a light source configured to include the recording medium in the middle of its optical path; a lens; an optical projection means having a screen, by passing current between the recording head and the conductive layer of the recording medium, a predetermined portion of the conductive layer is destroyed by the electric current, and characters, numbers, or symbols are projected onto the recording medium. At the same time, the recording medium is transferred to the optical projection means side by the transfer means, and the light from the light source is irradiated from one side of the recording medium, so that the recording medium is A display device that enlarges and projects characters, numbers, or symbols recorded on the recording medium onto the screen by projecting the transmitted light onto the screen via the lens.