JPH04204592A - Display device - Google Patents

Abstract

PURPOSE:To re-display a color image or store it in the re-displayable state by forming the fine color image on a roll-shaped display sheet with an ink jet printer, immediately displaying it, and winding the display sheet on a roller. CONSTITUTION:The tip of the roll-shaped paper 4 is pinched between a paper feed roller 5 and a roller 6, an opening lever 9 is closed, and the paper feed roller 5 is rotated to start the paper feed. The paper 4 conveyed between a glass plate 16 and a belt 17 is discharged on the back side of a display section 3, and its tip is wound on the first winding roller 24 with an adhesive tape. A color image is formed on the paper 4 by an ink jet type printer 8 according to the image data fed from an external computer, and the paper 4 is conveyed in sequence and displayed. When the desired number of sheets are printed, the paper 4 is cut by a cutter 7 and wound on the roller 24. The paper 4 wound on the roller 24 is wound on the second winding roller 25 and stored.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display device that continuously displays fine color images.

[Prior Art] Conventionally, many display devices have been known, such as those that simply display a plurality of posters in succession, electronic bulletin boards, CRTs, and liquid crystal displays.

[Problems to be Solved by the Invention] Among such display devices, those that simply display a plurality of posters cannot create and display new images and have a limited amount of information.

Next, electronic bulletin boards, CRTs, liquid crystal displays, etc. can display new images, but electronic bulletin boards constantly consume electricity and generate a lot of heat to display a single image, and cannot express detailed images. Therefore, it was not suitable for viewing up close, and CRTs and liquid crystal displays were unable to display very large images.

The present invention provides a display device that is capable of displaying an image of an image that can be easily recognized by about 10 to 20 people.
It has a large O-size display screen, and is an unprecedented display device that uses an inkjet printer to form a fine color image on a display sheet and immediately displays it. To provide a display device in which the same image can be displayed again and again by winding a display sheet around a roller, or can be stored in a state where it can be displayed again.

[Means for Solving the Problems] The present invention provides a continuous long display sheet for redisplaying an image any number of times, an inkjet printer that forms a color image on this display sheet, and this inkjet printer. A transparent plate installed above, a belt stretched parallel to and in contact with the transparent plate, a motor that drives the belt, and a sheet conveyance path that conveys display sheets from an inkjet printer to the belt. A first winding roller that winds up the display sheet, a second winding roller that winds up the display sheet that has been wound around the first winding roller again, and a second winding roller. The display device is provided with a redisplay sheet conveyance path for conveying the display sheet on a belt, and the display device is provided with a second winding roller that is removable from the display device in order to store the display sheet in a redisplayable state. .

[Function] The display device according to the present invention can form a fine color image similar to that of a poster on a continuous long display sheet, and can immediately develop and display the image, and can display the image in -degrees. The displayed display sheet is first wound up on the first winding roller, and then wound up again on the winding roller of cylinder 2.
The image can be displayed again from this second take-up roller, or the second take-up roller can be removed and stored as is.

[Example] An example of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a display device according to an embodiment of the present invention, and FIG. 2 is a front view of the display device.

The display device 1 includes a printer section 2 and a display section 3.
It consists of

The printer section 2 has a paper 4 wound in a roll shape and the paper 4.
a paper feed roller 5, a roller 6, a cutter 7,
An inkjet printer 8 that prints color images is provided.

The paper feed roller 5 is rotated by a motor (not shown), and the roller 6 is rotatably provided on an opening/closing lever 9. When the opening/closing lever 9 is closed, the roller 6 comes into contact with the paper feeding roller 5.

Color image data sent to the printer is sent from an external computer (not shown).

The display section 3 is moved by the roller 10 and the paper guide plate 11.
A paper guide path 12 is formed to guide the paper 4 toward the
．． 3b is provided.

Of these conveyance rollers 13a, 13b, the upper conveyance roller 13b is driven by a motor (not shown), and the lower conveyance roller 13a is provided so as to be movable towards and away from the upper conveyance rollers 1, 3b.

The paper guide switching plate 14 is located in the middle of the paper guide path 12, and when it is opened, the paper transport path 12 is opened toward the paper stocker 15.

The display section 3 is constructed using a large glass plate 16.
It has an AO size display area of 188 mm by 840 mm and is provided above the printer section 2. Also, a belt support roller 18 that stretches the belt 17 along the glass plate 16, a belt drive roller 19, a roller 20 that pairs with the belt drive roller 19, and a belt 17 that extends from the back side toward the glass plate 16. A plurality of belt pressing rollers 21 are provided for pressing.

The belt 17 is a flexible sheet made of PET whose surface is covered with a rubber material.

The belt drive roller 19 is rotated by a belt drive motor 22 via a plurality of gear groups 23, and thus conveys the belt from bottom to top (in the direction of the arrow in the second section) on the glass surface side.

On the back side of the display unit 3, there is a first window for winding up the paper after displaying.
A take-up roller 24 and a second take-up roller 25 for re-winding the paper 4 wound up by the first take-up roller 24 are provided.

The motor 26 is a motor that drives the first take-up roller 24 and the second take-up roller 25.

The drive from the motor 26 is transmitted through a pulley 27 provided on the motor shaft, a belt 28, a pulley 29, and a pulley 29.
9, a gear 30 coaxial with the pulley 29 and the gear 30, a connecting rod 31 rotatably provided on the axis of the pulley 29 and the gear 30, a gear 32 provided at the other end of the connecting rod 31, and the first winding roller 24. The driving of the first winding roller 24 and the second winding roller 25 is switched via a gear 33 provided on the second winding roller 25 or a gear 34 provided on the second winding roller 25. 31 is rotated and gear 32 is connected to gear 33 or gear 34.

A paper guide plate 35, a pair of conveyance rollers 36a and 36b, and a paper guide plate 37 are provided below the second take-up roller to form a redisplayed paper conveyance path.

The conveyance roller 36b is driven by a motor (not shown).

Next, from image formation to redisplay on the display device 1,
To explain step by step, first, the leading edge of the rolled paper 4 is carried between the paper feed roller 5 and the roller 6, and the opening/closing lever 7 is closed.
The paper feed roller 5 rotates and the paper is automatically fed.

Initially, the paper guide switching plate 14 is closed, and the paper 4 is first guided to the transport rollers 13a and 13b. Then, it passes through the conveyance rollers 13a and 13b, and the passage of the leading edge of the paper is detected by a sensor (not shown), and the belt drive roller 19
is rotated.

Paper 4 conveyed between belt drive roller 19 and roller 20
The glass plate 1 is rotated by the belt 17 and the roller 20.
6 and belt 17.

At this time, the lower conveyance roller 3a separates from the upper conveyance roller 3b, and the upper conveyance roller 3b stops, eliminating the resistance caused by the conveyance rollers 3a and 13b.

The paper 4 conveyed between the glass plate 16 and the belt 17 slides on the glass plate 16 from below as the belt 17 moves.
Transported to the second location. At this time, since the belt 17 is entirely in contact with the glass plate 16 by the belt pressing roller 21, the paper 4 is pressed against the glass surface and is conveyed without wrinkles.

The paper 4 is then discharged to the back side of the display section 3 as the belt 17 moves.

The leading edge of the ejected paper 4 is passed to the first winding roller 24
The image can then be displayed by wrapping it with adhesive tape.

Then, a color image is formed on the paper 4 by a well-known inkjet printer 8 according to image data given from an external computer.

The sheets of paper 4 on which color images are displayed are sequentially conveyed and displayed. At this time, the first winding roller 24 rotates according to the motor 26 and winds the paper 4.

When the desired number of images have been printed, the paper 4 is cut by the cutter 7, and the entire paper 4 is wound around the first winding roller 24.

Next, the rear end of the paper 4 wound around the first winding roller 24 is wound around the second winding roller 25 with an adhesive tape.

Then, the connecting rod 31 is rotated and the second winding roller 2 is moved.
Drive 5. All of the paper 4 taken up by the first take-up roller 24 is now taken up by the second take-up roller 25.

As a result, the leading end of the paper 4 wound furthest back by the first winding roller 24 is wound up by the second winding roller 25 and becomes the outermost part, so that it can be immediately displayed.

Next, if you want to display the image taken up by the second take-up roller again, the leading edge of the paper 4 is sandwiched between the transport rollers 36a and 36b, and when a re-display signal is given, the transport roller 36b rotates and the paper 4 is guided by the paper guide plate 35 and conveys the conveyance roller 13a,
13b.

At this time, the connecting rod 31 rotates again, and the gear 32 moves to the gear 3.
4, the second take-up roller 25 can easily rotate, and the paper can be smoothly fed to redisplay.

The paper 4 to be redisplayed passes through the display section 3, is wound around the first winding roller 24 again, and is redisplayed.

Incidentally, after winding up with the second winding roll, if there is no need to display it again, the second winding roll can be removed and stored. Then, another image can be displayed again by attaching another already stored take-up roller to the position of this second take-up roller.

Although paper is used as the medium for printing images in this embodiment, a film-like sheet material may also be used.

The paper 4 is attached to the first and second take-up rollers using adhesive tape, but this is not limited to this embodiment. A method such as inserting and attaching may also be used.

[Effects of the Invention] According to the present invention, it is possible to form a fine color image similar to that of a poster, and immediately develop and display the image. A display device that is easy for humans to view can be provided, and the image can be displayed any number of times, or the image can be stored. FIG. 1 is a side sectional view of a display device in an embodiment of the present invention.

FIG. 2 is a front view of a display device in an embodiment of the present invention.

1 is a display device, 4 is paper, 8 is a printer, 16 is a glass plate, 17 is a belt, 18 is a belt support roller, 1
9 is a belt driving roller, 21 is a belt pressing roller, 2
2 is a belt drive motor, 24 is a first winding roller, 2
5 is a second winding roller.

Claims (2)

[Claims] (1) A continuous long display sheet, an inkjet printer that forms a color image on this display sheet, a transparent plate installed above the inkjet printer, and a continuous display sheet parallel to and in contact with the transparent plate. A belt to be stretched, a motor that drives the belt, a sheet conveyance path that conveys a display sheet from an inkjet printer to the belt, a first winding roller that winds up the display sheet, and this first winding roller. A second winding unit rewinds the display sheet that was wound up again.
A display device comprising: a take-up roller; and a re-display sheet conveyance path for conveying a display sheet from the second take-up roller to a belt. (2) A display device, wherein the second take-up roller according to claim (1) is provided removably from the display device.