JP2003005149A - Method and device for image writing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image writing method with which a visible image composed of an original image and an additional image can be written to an image recording medium without increasing the cost and an image writing device which uses the image writing method. SOLUTION: The additional image 10b is written with a writing tool 5 on a surface coat 11 formed on an image display screen 10 where the original image 10a is displayed and the image recording medium 100 is arranged on the image display screen 10; and the writing device 20 applies a voltage to the image recording medium 100 to write the visible image 100a composed of the original image 10a and additional image 10b to the image recording medium 100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image writing method and an image writing apparatus for writing an image on an image recording medium on which a visible image is written by irradiation of exposure light representing the image.

[0002]

2. Description of the Related Art Conventionally, information on a document or a picture created by a personal computer or the like has been displayed on an image display device such as a CRT or a liquid crystal display device, and the displayed information can be held in hand. As a means for converting to a readable medium (hard copy medium), printout on paper is generally used. In addition to this, the information displayed on the screen is photographed by an instant camera or the like and converted into a photographic film. In either case, a certain amount of time is required, which interrupts thinking and reduces the efficiency of creative work.

Further, in recent years, due to environmental problems such as protection of forest resources and waste disposal, there is an increasing expectation for a new hard copy medium replacing paper. From such a background, research on a new image recording medium called “electronic paper” (optical writing type recording medium) has been actively conducted. For example, H.264. Yoshida, T .; Takazawa et al. "R
effective Display with Ph
Otoconductive Layer and a
Bistable, Reflective Chol
esteric Mixture "SID'96 AP
PLICATIONS DIGEST p59-p62
, An image recording medium having a display layer made of cholesteric liquid crystal and an optical switching layer made of amorphous silicon, and a Japanese Hardc.
As described in opy'96 Fall Meeting p25, there is known an Elgraphy system, which is an image input system in which a liquid crystal element having a memory property and an organic photoconductor are laminated.

Usually, in the image recording medium which is such an optical writing type recording medium, while applying a predetermined voltage to the optical switching layer, the impedance of the optical switching layer is changed by the amount of received light and applied to the display layer. By controlling the applied voltage, the display layer is driven to display an image.

As the display material used for the display layer of such an image recording medium, in addition to cholesteric liquid crystals, liquid crystal materials such as nematic liquid crystals, twisted nematic liquid crystals, super twisted liquid crystals and smectic liquid crystals, and surface-stabilized ferroelectric liquid crystals. Known are polymer-dispersed liquid crystals in which a liquid crystal material is polymer-dispersed, and encapsulated liquid crystals in which a liquid crystal material is encapsulated. Among these, the one using a display material having a memory property does not require electric power to maintain the recorded display state, and therefore, after the image information is recorded and displayed, the image recording medium is separated from the image writing device. It is possible to carry around. Examples of display materials having such a memory property include cholesteric liquid crystal, ferroelectric liquid crystal, polymer dispersed liquid crystal, and encapsulated liquid crystal.

An image recording medium using a cholesteric liquid crystal can record (transfer) a display screen of a CRT or a liquid crystal display device in an instant, and is harder than a printout on paper or a photograph taken by an instant camera. It takes less time to make a copy, which reduces interruptions in thinking and reduces the efficiency of creative work. In addition, environmental problems such as protection of forest resources and waste disposal can be solved.

Here, an additional image such as an underline is added to the original image displayed on the image display screen of the image writing device, and a visible image obtained by combining the original image and the additional image is recorded as an image. Sometimes you want to write to a medium.

FIG. 6 is a diagram for explaining an image writing method for writing a visible image, which is a combination of an original image and an additional image, on an image recording medium by a conventional image writing device.

The image writing apparatus 200 shown in FIG. 6 (a) is provided with an image display screen 201 on which an original image 201a is displayed. In addition, this image writing device 20
0, a dedicated pen 202 for adding the additional image 201b to the original image 201a, and the image display screen 2
A coordinate position detection unit 203 for detecting the coordinate position of the dedicated pen 202 on 01 is provided. FIG. 6B shows the image recording medium 100 on which the visible image 100a including the original image 201a and the additional image 201b is recorded.

With this image writing device 200, a visible image 1 obtained by combining an original image 201a and an additional image 201b.
To write 00a to the image recording medium 100, first, the original image 201a is displayed on the image display screen 201. Next, the additional image 201b is added with the dedicated pen 202. Then, the coordinate position detection unit 203 displays the image display screen 2
The coordinate position of the dedicated pen 202 on 01 is detected, the additional image 201b added by the dedicated pen 202 is taken into the image writing device 200, and the additional image 201b is displayed on the image display screen 201 together with the original image 201a.
In such a state, the image recording medium 100 is arranged on the image display screen 201, the writing unit 204 constituting the image writing device 200 is attached to the image recording medium 100, and the original image 201a and the additional image 201b are provided. The visible image 100a including the above is written on the image recording medium 100. In this way, the image recording medium 100 on which the visible image 100a is recorded as shown in FIG. 6B is obtained. The coordinate position detecting unit 203 may be detected by an electromagnetic induction detecting method, a detecting method of detecting a contact portion of a transparent electrode, an optical coordinate detecting method, or the like.

[0011]

However, in the image writing method of writing the visible image 100a, which is a combination of the original image 201a and the additional image 201b, on the image recording medium 100 by the above-described image writing device 200, a dedicated pen or The coordinate position detection unit is required, and there is a problem that the cost of the device increases.

In view of the above circumstances, the present invention provides an image writing method capable of writing a visible image, which is a combination of an original image and an additional image, onto an image recording medium while suppressing an increase in cost, and an image writing method thereof. An image writing device according to the present invention is provided.

[0013]

A first image writing method of the image writing methods of the present invention which achieves the above object is to write an additional image on an image display screen on which an image is displayed. A sheet is arranged, and at some point before or after this arrangement, an additional image to be added to the image displayed on the image display screen is written on the sheet, and the additional image is written on the image display screen. In the state where the sheet is arranged, an image recording medium on which a visible image is written by being irradiated with exposure light representing an image is arranged on the sheet, and the image is displayed on the image display screen to thereby form the sheet. The image recording medium arranged above is irradiated with exposure light, and a visible image, which is a combination of the image on the image display screen and the additional image written on the sheet, is written on the image recording medium. You .

A second image writing method of the image writing methods of the present invention that achieves the above object is to display an image on an image display screen on which an image is displayed. An additional image to be added is written, and on the image display surface on which the additional image is written, an image recording medium on which a visible image is written by irradiation of exposure light representing the image is placed, and the image is displayed on this image display screen. By displaying, the image recording medium arranged on this image display screen is irradiated with exposure light, and the image displayed on the image display screen and the additional data written on the image display screen are added to the image recording medium. It is characterized by writing a visible image combined with the image.

Further, the first image writing device of the image writing devices of the present invention which achieves the above object receives the exposure light representing the image on the image display screen on which the image is displayed. An image recording medium on which a visible image is written is arranged,
In an image writing device for exposing an image recording medium arranged on the image display screen by displaying the image on the image display screen and writing the image on the image recording medium, the image display screen is a writing instrument. Is characterized by being subjected to a surface treatment for writing and erasing an additional image.

A second image writing device of the image writing devices of the present invention that achieves the above object receives irradiation of exposure light representing the image on an image display screen on which the image is displayed. An image recording medium in which a visible image is written is arranged, and an image is written on the image recording medium by exposing the image recording medium arranged on the image display screen by displaying the image on the image display screen. In the writing device,
It is characterized in that it has a sheet capable of writing and erasing an additional image using a writing instrument, which is movably provided between the image display screen and a retracted position retracted from the image display screen.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The image writing apparatus of the present invention will be described below.

FIG. 1 is a diagram showing an embodiment of a first image writing apparatus of the present invention and a second image writing method of the present invention.

The image writing apparatus 1 shown in FIG. 1A is provided with an image display screen 10 on which an original image 10a is displayed. This image display screen 10 is shown in FIG.
As shown in FIGS. 1A and 1B, an additional image 10 using a general-purpose writing instrument 5 such as a pencil or a pen for an electronic whiteboard.
A surface coat 11 having a surface treatment for writing and erasing of b is formed. Furthermore, the image writing device 1 includes
The image writing unit 20 mounted on the image recording medium 100 and applying a voltage to the image recording medium 100 shown in FIG.
Is provided.

The image writing apparatus 1 has an image display screen 10
A visible image 100a in which the original image 10a displayed on the image display screen 10 and the additional image 10b written by the writing instrument 5 on the surface coat 11 formed on the image display screen 10 are combined.
Is a device for writing in the image recording medium 100.

With this image writing device 1, the image recording medium 100
In order to write the visible image 100a on, the additional image 10b is first written with the writing instrument 5 on the surface coat 11 formed on the image display screen 10 on which the original image 10a is displayed.

Next, the image recording medium 100 is placed on the image display surface 10 on which the additional image 10b is written.

Further, the image recording medium 10 is written by the writing device 20.
A voltage is applied to 0, and a visible image 100a obtained by combining the original image 10a displayed on the image display screen 10 and the additional image 10b written on the surface coat 11 of the image display screen 10 on the image recording medium 100. Write.

The conventional image writing method by the image writing apparatus 200 shown in FIG. 6 requires a dedicated pen and a coordinate position detection unit for detecting the pen coordinates on the image display screen, which increases the cost of the apparatus. There is a problem. Here, the content of the image added to the original image is often for temporary recording or checking, and in many cases it is not necessary to record the additional information as digital information. Therefore, in the present embodiment, by additionally writing on the image display screen 10 that has been subjected to surface processing capable of writing and erasing with a general-purpose writing instrument 5 such as a pencil or a pen, the cost increase of the device is suppressed, The visible image 100a including the original image 10a and the additional image 10b can be easily written on the image recording medium 100.

It is expected that additional recording will be performed on the recorded image recording medium 100 in the same manner as additional recording is performed on the copied paper. Therefore, the surface of the image recording medium 100 may be subjected to a surface treatment for writing and erasing an additional image to form a surface coat, and additional writing may be directly performed on the surface coat.

FIG. 2 is a sectional view of the image recording medium, the surface of which has been subjected to a surface treatment for writing and erasing an additional image.

FIG. 2 shows the image display screen 10 and the image recording medium 100 in which the original image of the image display screen 10 is written. On the surface of the image recording medium 100, a writing instrument 5 such as a pencil or a pen for an electronic whiteboard is used.
The surface coat 101 that has been subjected to a surface treatment for writing and erasing an additional image using is formed. By directly additionally writing on the surface coat 101 with the writing instrument 5, it is possible to obtain the same effect as in the case of the image writing method by the image writing device 1 described above.

FIG. 3 is a sectional view of the image recording medium and the transparent sheet.

In FIG. 2, the example in which the surface treatment for writing and erasing the additional image is performed on the image recording medium 100 has been described, but the surface treatment is not performed on the image recording medium 100, but this FIG. As shown in a), the image recording medium 100
A removable writable and erasable transparent sheet 110 may be disposed thereover. In addition, as shown in FIG. 3B, a plurality of sheets (here, two sheets) are formed on the image recording medium 100.
Transparent sheets 110 and 120 are arranged, and the upper transparent sheet 120 is used once or several times and then peeled off,
A new transparent sheet 110 may appear from the bottom.

FIG. 4 is a diagram showing a second embodiment of the second image writing apparatus of the present invention and the first image writing method of the present invention.

The image writing device 2 shown in FIG. 4 is provided movably between the image display screen 30 on which the original image 30a is displayed and the retracted position retracted from the image display screen 30. It has a transparent sheet 40 on which the additional image 40a can be written and erased using the writing instrument 5 described above. In the image writing method by the image writing apparatus 1 shown in FIG. 1, since it is necessary to perform the surface treatment on each device, as a method for further cost reduction, a transparent (specific for white plate) surface is specified. The original image 30a and the additional image 40a are recorded on the image recording medium 150 by the image writing device 2 including a sheet (film or glass) having a surface coat layer capable of writing and erasing with ink or pencil.
A visible image (composite image) 150a composed of is written.

An image recording medium 150 is recorded by the image writing device 2.
In order to write the visible image 150a composed of the original image 30a and the additional image 40a, first, the transparent sheet 40 for writing the additional image 40a is arranged on the image display screen 30 on which the original image 30a is displayed, and this arrangement is performed. Either before or after, the additional image 40a to be added to the original image 30a displayed on the image display screen 30 is written on the transparent sheet 40.

Next, the additional image 40 is displayed on the image display screen 30.
In the state where the transparent sheet 40 in which a is written is arranged, the image recording medium 150 to which a visible image is written by being irradiated with exposure light representing an image is arranged on the transparent sheet 40, and the image display screen 30 is displayed. By displaying the image 30a on the transparent sheet 40, the image recording medium 150 arranged on the transparent sheet 40 is irradiated with exposure light, and the original image 30a of the image display screen 30 and the transparent sheet 40 are displayed on the image recording medium 150. A visible image 150a is written together with the written additional image 40a.

In this embodiment, the transparent sheet 40 is independently set between the image display screen 30 and the image recording medium 150, and writing and erasing are performed on the transparent sheet 40 with a general-purpose writing instrument 5 such as pencils and pens. By performing the above, it is possible to easily write the additional image 150a on the image recording medium 150 while suppressing the cost increase of the apparatus. still,
This embodiment is effective when used in the system notebook format.

FIG. 5 is a diagram showing a second embodiment of the second image writing apparatus of the present invention and the first image writing method of the present invention.

FIG. 5 shows the image writing device 3 in which the image display screen 50 on which the original image 50a is displayed and the image recording medium 170 are connected by the hinge portion 70 to realize the spread notebook format. There is. This image writing device 3
Similar to the image writing device 2 described above, writing of the additional image 60a using the writing instrument 5 movably provided between the image display screen 50 and the retracted position retracted from the image display screen 50. , And has a erasable transparent sheet 60.

The image recording medium 1 is recorded by the image writing device 3.
Regarding the image writing method of writing the visible image 170a composed of the original image 50a and the additional image 60a in the image 70, the image recording medium 170 is arranged on the image display screen 50 in which the transparent sheet 60 is arranged via the hinge portion 70. Except for the case, it is the same as the case of the image writing device 2 described above, and thus detailed description will be omitted.

[0038]

As described above, according to the present invention,
It is possible to write a visible image, which is a combination of the original image and the additional image, on the image recording medium while suppressing the cost increase.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a first image writing device of the present invention and a second image writing method of the present invention.

FIG. 2 is a cross-sectional view of a surface of an image recording medium, which has been subjected to a surface treatment for writing and erasing an additional image.

FIG. 3 is a cross-sectional view of an image recording medium and a transparent sheet.

FIG. 4 is a diagram showing a second embodiment of the second image writing apparatus of the present invention and the first image writing method of the present invention.

FIG. 5 is a diagram showing a second embodiment of the second image writing apparatus of the present invention and the first image writing method of the present invention.

FIG. 6 is a diagram for explaining an image writing method for writing a visible image, which is a combination of an original image and an additional image, onto an image recording medium by a conventional image writing device.

[Explanation of symbols]

1, 2, 3 image writing device 5 Writing instruments 10, 30, 50 image display screen 10a, 30a, 50a Original image 10b, 40a, 60a Additional image 11,101 Surface coat 20 Image writing section 40, 60, 110, 120 Transparent sheet 70 Hinge part 100,150,170 image recording medium 100a, 150a, 170a visible image

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 1/387 H04N 1/387 // G09G 3/18 G09G 3/18 (72) Inventor Masaaki Araki Kanagawa 2274 Hongo, Ebina City, Fuji Xerox Co., Ltd. Ebina Works (72) Inventor Naoki Hiji 2274 Hongo, Ebina City, Ebina, Kanagawa Fuji Xerox Co., Ltd. F Term (reference) 2H088 EA62 GA02 GA03 GA04 GA10 JA05 JA13 JA19 MA20 2H092 LA00 LA12 NA29 5C006 AF27 AF33 BA11 BB01 BB11 BD06 EC02 FA51 5C076 AA12 BA02 CA10 5C080 AA18 BB05 DD27 EE32 GG01 JJ01 JJ06

Claims (4)

[Claims] 1. A sheet for writing an additional image is arranged on an image display screen on which an image is displayed, and the sheet is displayed on the image display screen on the sheet at any time before or after this arrangement. The additional image to be added to the image is written, and in the state where the sheet with the additional image written is arranged on the image display screen, the visible image is written on the sheet by irradiation of exposure light representing the image. The image recording medium arranged on the sheet is irradiated with exposure light by arranging an image recording medium to be displayed, and an image is displayed on the image display screen. And an additional image written on the sheet, and a visible image is written. 2. An additional image to be added to the image displayed on the image display screen is written on the image display screen on which the image is displayed, and an exposure representing the image is formed on the image display surface on which the additional image is written. An image recording medium on which a visible image is written by receiving irradiation of light is arranged, and the image recording medium arranged on this image display screen is irradiated with exposure light by displaying an image on this image display screen, An image writing method, wherein a visible image, which is a combination of an image displayed on the image display screen and an additional image written on the image display screen, is written on the image recording medium. 3. An image recording medium on which an visible image is written by being irradiated with exposure light representing the image is arranged on the image display screen on which the image is displayed, and the image is displayed on the image display screen. In an image writing device for exposing an image recording medium arranged on the image display screen to write an image on the image recording medium, the image display screen is a surface for writing and erasing an additional image using a writing instrument. An image writing device characterized by being processed. 4. An image recording medium on which an visible image is written by being irradiated with exposure light representing the image is arranged on the image display screen on which the image is displayed, and the image is displayed on the image display screen. In an image writing device that exposes an image recording medium arranged on the image display screen to write an image on the image recording medium, the image display screen and a retracted position retracted from the image display screen are provided. An image writing device, comprising a sheet that can be freely moved between, and can write and erase additional images using a writing instrument.