JP2006059138A - Electronic paper system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic paper system as an information delivery system capable of easily managing duplication and distribution of information. <P>SOLUTION: This electronic paper system comprises display devices 2a and 2b including an electronic paper, a radio tag means receiving an external electromagnetic signal, and a recording control means forming an image based on received information received by the radio tag means and recording the image to the electronic paper; a transfer device 1 connected to a PC 4 to transfer information from the PC 4 to the radio tag means of the display devices 2a and 2b by a radio signal of magnetism, an electric field or the like; and a scanner 6 connected to the PC 4 to read images. Communication with the display devices 2a and 2b is performed in no contact by the transfer device 1, whereby copying of information to the desired display device 2a, 3b or electronic paper and the transfer and management thereof between the display devices 2a and 2b can be easily performed, and information management can be performed by controlling a display image. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic paper system capable of distributing information using electronic paper that is easy to read and portable and that is easy to manage information.

  Conventionally, if you want to view electronic information on paper output with high readability and portability, print information from a personal computer (hereinafter referred to as a PC) to a PC or a printer connected to a network, and print the image with the printer. Formed on paper for personal use.

  In addition, when using information that exists in the form of images on paper for personal use, it can be copied by a copier or read by an image scanner and converted into electronic information, which is then output from a printer to paper. It is used.

  However, when the information is output from the printer and distributed, the paper is discarded when the information is no longer needed, which is a waste of resources.

  In order to use information created and edited on a PC in a readable and portable form, there is a form in which a portable notebook computer is connected to a network system via a wireless LAN and displayed on a liquid crystal display. There is a problem that the portability is low and eyes are tired when viewed for a long time.

  As means for making the information readable in addition to the display of the paper or PC, for example, (Patent Document 1) includes a memory for storing tag information, a transmission / reception circuit for wirelessly transmitting / receiving the tag information stored in the memory, A wireless tag with a data display function including a display unit for displaying tag information is disclosed in a wireless tag including a control circuit for controlling reading / writing of tag information in the memory and an operation of a transmission / reception circuit. It is intended for use in logistics management systems.

  Further, (Patent Document 2) describes a content code from a means for receiving content and a content code corresponding to the content, a storage means for storing the content and the content code, and a paper-like display medium in which the content code is stored. An information providing system is disclosed that includes a code reading unit that reads a content code corresponding to the content code read by the code reading unit, and a display unit that displays the content code on a paper-like display medium.

(Patent Document 3) discloses an electronic watermark insertion method in which a watermark signal is dispersed in image data so that the watermark signal is hardly noticed by a person.
JP 2002-236891 A JP 2003-333001 A JP-A-9-191394

  In the case of the integrated wireless tag having the display function of no power source disclosed in the above (Patent Document 1), there is a problem that the display size cannot be increased because the power supplied wirelessly is small.

Further, in the information providing system disclosed in (Patent Document 2), there is a risk that data can be copied without limitation when it is distributed as electronic data to an apparatus. Although it is possible to control copying by adding an “electronic watermark” as disclosed in (Patent Document 3) proposed as a countermeasure against it, as an individual display device, the computing performance is a notebook personal computer. The problem is that high-performance processing capacity equivalent to the above is required, which makes it expensive, or that the processing time becomes longer if it is configured with parts with low processing performance, which is an incompatible trade-off between performance / cost and processing time. Had problems.

  The present invention is intended to solve these problems, and an object thereof is to provide an electronic paper system as an information distribution system capable of easily managing the duplication and distribution of information using the electronic paper as an information display medium. .

  The present invention includes an electronic paper, a wireless tag unit that receives an electromagnetic wave signal from the outside, and a recording control unit that generates an image based on the reception information received by the wireless tag unit and records the image on the electronic paper. A display device that is connected to a PC and transfers information from the PC to a wireless tag means of the display device by a wireless signal such as magnetism or an electric field; an image reading device that is connected to the PC and reads an image; The main feature is that it is an electronic paper system equipped with.

  The electronic paper system of the present invention communicates with a display device in a contactless manner by a transfer device, so that information can be easily copied to the desired display device or electronic paper, transferred between the display devices, and managed as well as displayed images. Information management.

  An object of the present invention is to provide an electronic paper system as an information distribution system that can easily manage duplication and distribution of information using electronic paper as an information display medium, and to receive electronic paper and an electromagnetic wave signal from the outside. A display device comprising a wireless tag means, a recording control means for generating an image based on the received information received by the wireless tag means and recording the image on the electronic paper, and information from the PC connected to the PC This is realized by including a transfer device for transferring the image to the wireless tag means of the display device by a wireless signal such as magnetism or an electric field, and an image reading device connected to the PC for reading an image.

  A first invention made to solve the above problems is an electronic paper that maintains a display state in a non-powered state and displays an image by applying magnetism or an electric field, and a wireless tag that receives an electromagnetic wave signal from the outside Connected to a personal computer (hereinafter referred to as a PC) connected to a display device comprising means and a recording control means for generating an image based on the received information received by the wireless tag means and recording the image on electronic paper, An electronic paper system comprising: a transfer device that transfers information from a PC to a wireless tag means of a display device by a wireless signal such as magnetism or an electric field; and an image reading device that is connected to the PC and reads an image; By communicating with the display device in a contactless manner using the transfer device, information can be copied to the desired display device or electronic paper and transferred between the display devices. Simply performs management, it is possible to control and information management of the displayed image.

A second invention made to solve the above-mentioned problems is the first invention, wherein an information program for creating and managing information to be output to a display device is mounted on a PC, and an individual identification symbol (hereinafter referred to as “the identification code”) is provided. ID) is provided in a display device, ID information is recognized through a transfer device by an information program, and information is created and managed according to the recognized ID and a prior processing procedure. By detecting the display device and causing the display-side identification information to be recognized by the information program, it is easily desired based on the information, processing procedures, and operations on the screen set and registered in advance based on the identification information. You can copy information to display devices and electronic paper, transfer and manage information between display devices, control display images, and place multiple transfer devices in space. Detects the paper and the display device can be information management.

  According to a third aspect of the present invention, there is provided a means for setting a copy setting condition (hereinafter referred to as an image quality deterioration rate) for determining an image quality to be copied, and transferring a display image between different display devices. In this case, there is provided means for transferring the display image data and the image deterioration rate of the display device serving as the copy source to the copy destination display device via the transfer device, whereby the image quality deterioration rate is provided to the copy destination display device. The display image data is processed and displayed according to the conditions, and gradually reducing the contrast of the image information each time it is copied, so that information security and copyright can be maintained even for acts such as copying. Various restrictions can be made.

  According to a fourth aspect of the present invention, there is provided a means for setting a copy setting condition for determining the number of times that copying can be performed. The display image data and the copy setting condition of a display device serving as a copy source are displayed on the copy destination. When transferred to the device via the transfer device, the copy number of the copy setting condition is added or subtracted at the copy destination display device, and when it reaches a predetermined value, all the display image data is cleared and not displayed. By limiting the number of times of copying, various restrictions such as information security and copyright maintenance can be performed even for copying.

  A fifth invention made to solve the above-mentioned problem is that a transfer device has a power supply function and supplies power to the display device by electromagnetic waves, and the display device generates power from the received electromagnetic waves. A storage battery for storing this is provided, whereby the transfer device can be driven without an external power source.

  A sixth invention made to solve the above problems is that the electronic paper is detachable from the display device, and is lighter than a case where the display device is lifted, and the user feels fatigued. Can be reduced.

  According to a seventh aspect of the invention made to solve the above problems, when an image reading device connected to a PC reads an image displayed on an electronic paper, the image reading device communicates with a wireless tag mounted on the electronic paper. The image data is provided with means for processing the image data based on the description information of the wireless tag, and the predetermined image processing can be easily performed by reading the tag information together with the image data.

  An eighth invention made to solve the above problems is provided with means for controlling the attachment / detachment mechanism between the electronic paper and the display device from an information program, and enables safe use and reliable display. .

  According to a ninth invention for solving the above-described problems, a wireless tag used as means for mounting an individual ID is incorporated in either or both of a removable electronic paper and a display device. Since tag information attached to electronic paper can be read simultaneously with image data, continuity such as centralized management of information and copy restrictions can be maintained.

  In a tenth aspect of the invention made to solve the above problems, a transfer device has an individual ID, and an interface circuit for connecting to a network is built in, and a plurality of transfer devices are centrally managed. it can.

An eleventh invention made to solve the above-mentioned problem is that at least one of the transfer device and the display device has a warning means such as a buzzer, so that a warning sound and an operation sound can be generated. Can output.

  In a twelfth aspect of the invention made to solve the above problem, when an information program is installed on a plurality of individual PCs, the information programs on each PC operate in cooperation to perform information management and processing. As a result, centralized management by the information program of the PC can be performed.

  A thirteenth invention made to solve the above-described problem is that an ID wireless tag of a display device or electronic paper has a function of reading and writing data similar to a transfer device. If read by the image reader, tag information attached to the electronic paper can be read simultaneously with the image data, so that continuity such as centralized management of information and restriction of copying can be maintained.

  In a fourteenth aspect of the invention made to solve the above problems, the image reading apparatus can be connected to a network, and information management and image processing at the time of image reading can be unified.

  In a fifteenth aspect of the invention made to solve the above problems, the transfer apparatus has a plurality of different types of antennas built therein, and communication efficiency, long distance, high reliability, and diversification are achieved. Is possible.

  The sixteenth invention made to solve the above-mentioned problems is that the display device has a plurality of built-in antennas, and communication efficiency, long distance, high reliability, and diversification. Is possible.

  In a seventeenth invention made to solve the above problems, in a transfer device having a plurality of antennas, only a part of the antennas that can supply power to the display device are driven to supply power, The range of use can be expanded while maintaining efficiency and safety.

  An eighteenth invention made to solve the above problems is a transfer device having an antenna, wherein a magnetic body and a metal shield are applied to one side of the antenna to limit the output direction of electromagnetic waves, Thereby, the loss of the antenna can be reduced.

  According to a nineteenth aspect of the invention made to solve the above problems, an antenna used in an electronic paper system apparatus is formed of an organic material. Thinner and lighter.

  According to a twentieth aspect of the invention for solving the above problems, a transfer device of an electronic paper system is incorporated in a table, and the transfer device is easily used without the user being aware of it. be able to.

  Hereinafter, the best mode for carrying out the electronic paper system of the present invention having a function of reading like paper and excellent in information management will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a configuration diagram of an electronic paper system according to Embodiment 1 of the present invention. 1, the electronic paper system according to the present embodiment includes a transfer device 1, display devices 2a and 2b, a PC 4 on which an information program 3 is installed, a cable 5, an image reading device (hereinafter referred to as a scanner). .) 6.

  The transfer device 1 is connected to the PC 4 with the cable 5, and the scanner 6 is also connected to the PC 4 with the cable 5. Further, the transfer device 1 and the display devices 2a and 2b are connected by wireless communication.

  In FIG. 1, the PC 4 and the scanner 6 and the transfer device 1 are connected by the cable 5, but can be connected wirelessly by means such as a wireless LAN.

  This system basically makes it possible to output information prepared in the PC 4 to one or more predetermined display devices 2 (2a, 2b) via the transfer device 1. It is.

  The transfer device 1 is provided with means for receiving and extracting individual data sent from the PC 4, converting the obtained information and power into electromagnetic waves and outputting them from the antenna, and further detecting the display device by receiving the electromagnetic waves from the antenna. Provide means to do. Further, a means for setting an individual identification symbol (hereinafter referred to as ID) may be incorporated.

  The information program 3 is a program for controlling and managing information on the PC 4, and is set and registered in advance using the information of the display devices 2a and 2b sent from the transfer device 1 in the information program 3. Depending on the information and processing procedure, various data processing and event operations are performed, and image information and operation commands are sent to an arbitrary transfer device to control / manage display on the display devices 2a and 2b.

  The display devices 2a and 2b include an electronic paper that is a rewritable electronic display device that can hold a display without a power source, an antenna that receives an electromagnetic wave as seen in the configuration of a wireless tag, and a means for taking out and converting electric power from the electromagnetic wave. And means for extracting information and means for storing the generated electric power. Furthermore, a means for recording the display image on the electronic paper from the received information and a means for controlling these are incorporated.

  The electronic paper used for the display device is composed of two sheets facing each other with a predetermined gap and at least one of which transmits light, and one or a plurality of charged fine particles having different optical reflection density and color between the sheets. Electrophoretic or magnetophoretic electronic paper that changes the optical reflection density and color by moving the fine particles within the sheet by applying an electric field or magnetic field to the developer. Use.

  In addition to this, it is possible to use a technical device known as electronic paper, for example, a display device using a twisting ball, a phase-stable liquid crystal, a CN liquid crystal, a toner display, an electronic powder fluid, or the like.

  The scanner 6 is provided with communication means for communicating with a wireless tag in a known image reading means, and reads tag information together with image data when reading a display image of electronic paper with a tag.

  First, the basic system configuration shown in FIG. 1 will be described in detail with reference to FIGS.

  FIG. 2 is an internal block diagram of the transfer apparatus according to the first embodiment of the present invention, and is an interface circuit between the CPU 11, ROM (Read Only Memory) / RAM (Random Access Memory) 12 serving as storage means, and the PC 4. 13a, antenna drive circuit 14, antenna 15a, storage battery 16, buzzer drive circuit 17, and buzzer 18.

The CPU 11 controls the operation of the transfer device 1 by a program installed in the ROM or RAM 12. The transfer device 1 is connected to the PC 4 via a PC interface circuit 13a, for example, with a USB 2.0 cable. Therefore, the transfer device 1 does not require a power supply circuit, can receive power from a USB cable connected to the PC, store it in the storage battery 16, and drive with this power. 1P is a DC power supply output from the storage battery 16 supplied to each circuit block. The buzzer drive circuit 17 and the buzzer 18 can output warning sounds and operation sounds.

  In the present embodiment, the transfer device 1 does not require a power supply circuit, but may have a configuration having an AC power supply circuit or a battery as power supply means. Further, the buzzer driving circuit 17 and the buzzer 18 may not be mounted. The RAM of the ROM / RAM 12 has a capacity capable of storing display data for one display screen or a plurality of display screens, and is preferably a non-volatile type that can hold contents for a long time with little power consumption. .

  FIG. 3 is an internal block diagram of the display device according to the first embodiment of the present invention, in which writing to the electronic paper unit 200a can be written on the surface.

  In FIG. 3, the display device 2 includes a CPU 21 for controlling the operation of the display device 2, a ROM / RAM 22 that is a storage element for holding and recording control programs and data, and a transmission / reception antenna (hereinafter simply referred to as an antenna). ) RF conversion circuit 23 for extracting a signal from the radio frequency received at 25, AC / DC conversion circuit 24 for extracting electric energy from the electromagnetic wave received by the antenna 25 and converting it into DC power, and a transfer device 1, an antenna 25 for communicating with an electromagnetic wave, a storage battery 26 for storing DC power generated by the AC / DC conversion circuit 24, an electronic paper unit 200a, a display unit 27B, and a recording control circuit 28. It has.

  Here, the electric power of the storage battery 26 is used for the recording operation to the electronic paper unit 200a.

  A portion of 2CM surrounded by a broken line in FIG. 3 has a circuit configuration similar to a component for realizing a wireless tag, and can have an individual ID as an identification symbol, and the circuit portion is extremely small. It can be realized with IC. However, in this embodiment, a circuit for writing to the electronic paper unit 200a that consumes much larger power than that of a general RFID tag chip is mounted. The basic specifications of the AC / DC conversion circuit 24 for converting energy and the storage battery 26 are greatly different. For example, an electromagnetic wave having a frequency of 1 MHz is efficiently received, boosted and converted from a low AC voltage taken out by the antenna 25 to a DC voltage of 25 V, and the electric power is used as a storage battery 26 using a capacitor composed of an electric double layer capacitor. Also good.

  The storage battery 26 may include a control circuit for taking out a stable voltage.

  4A is a cross-sectional view of the electronic paper in the first embodiment of the present invention, FIG. 4B is a diagram showing a cross-sectional portion of the electronic paper in the first embodiment of the present invention, and FIG. The figure which shows the pixel drive circuit of the electronic paper in form 1, FIG.4 (a) shows cross-sectional site | part AA of FIG.4 (b).

  In FIG. 4A, 200M is a microcapsule having an electronic ink function, 200S is a light-transmitting sheet having light transmission for sandwiching the microcapsule 200M, and 200T is bonded to the light-transmitting sheet 200S. For non-conductive binder. A transparent electrode 201S is provided on the entire inner surface of the light transmissive sheet 200S on the display surface side, and a plurality of pixel electrodes 27BS are formed on the inner side of the opposite light transmissive sheet 200S on the back surface side.

  Here, the microcapsule 200M is filled with a plurality of particles and a dyed suspension fluid. The particles have different optical reflection properties, and also have a contrasting electrophoretic polarity, for example, a black 200+ positively charged particle 200K and a white − (minus). It is possible to use 200W charged particles and 200L filled with a transparent suspending fluid.

  In the present embodiment, the both sides of the electronic paper portion 200a are the transparent light-transmitting sheets 200S, but the back side may be configured by an opaque sheet, a metal sheet, and an insulating film.

  4B, 27BS is a pixel electrode, 27BT is a switching element, 28R is a horizontal driving circuit, and 28C is a vertical driving circuit.

  The display unit 27B is provided with a plurality of pixel electrodes 27BS, and each pixel electrode 27BS is provided with a switching element 27BT for each pixel. As shown in FIG. 4C, the gate electrode and the source electrode of the switching element 27BT are connected to the source line 27C and the gate line 27R which are horizontal and vertical wirings connected to the drive circuits 28R and 28C. Thus, the pixel electrodes 27BS connected to the drain electrodes of the switching elements 27BT can be individually driven in a matrix. Since an electric field is generated between the driven pixel electrode 27BS and the transparent electrode 201S, the charged particles are moved in the microcapsule 200M positioned therebetween.

  In the present embodiment, the drive circuits 28R and 28C are separated from the recording control circuit 28. However, the drive circuits 28R and 28C can be integrated into a 2CM portion surrounded by a broken line.

  Further, in the present embodiment, one switching element 27BT is provided for one pixel electrode 27BS. However, a power line and a plurality of switching elements may be provided to form an active matrix drive.

  FIG. 5A is a transition diagram of the information program according to the first embodiment of the present invention, and includes operation blocks for information registration, output setting, and processing. Normally, the information program waits for the occurrence of each event, and the operation block is executed when the event occurs.

  FIG. 5B is a flowchart showing an outline of the operation according to the first embodiment of the present invention. The operation will be described in detail below with reference to FIG.

  When the user enters the information registration mode from the menu screen (not shown) of the information program 3, the process proceeds to information registration step S31, and display information such as images and characters to be displayed on the display device 2 on the PC 4 and individual information about the user. Attribute information, and individual information for managing the display device 2 are registered. Here, the display information is image information converted into data by a scanner, text information created by application software, document information including figures, graphs, photographs, and the like. In addition, the user may be used by a plurality of people, such as a person who views information and a person who manages and provides information. Therefore, in order to identify and manage multiple users, various personal information such as name, status and authority in the company, age and password for security management, etc. can be managed to provide diversified convenience. It becomes possible.

Next, when the user enters an output setting mode from a menu screen (not shown) of the information program 3 on the PC 4, the process proceeds to an output setting step S32. In the output setting step S32, the user performs various output settings for the information to be displayed. For example, information to be displayed, designation of a user, selection of a display device, designation of a transfer device, designation of image quality deterioration parameter at the time of copying, designation of the number of generations of copying, a display period, and the like are arbitrarily set. The output setting information is recorded and saved in the PC 4 or the external storage device 4M connected to the PC 4.

  Here, the information to be displayed is prepared by processing the information registered in the processing procedure prepared in advance according to the personal information of the user who owns the display device 2 or the user authenticated by the PC 4. Is possible.

  For example, various information processing processes and applications such as displaying only a part of the registered information, combining a plurality of information, and limiting the period during which the information can be displayed are possible.

  Hereinafter, the information of the registered material 1 (not shown) registered in the information is transferred to the two display devices 2a and 2b with ID = n1 and ID = n2 via the transfer device 1 connected to the PC 4. An operation will be described for an example of output with a copy attribute of 5%.

  When the transfer device 1 is connected to the PC 4 and power supply is started, in step S11, the information D1 including the individual ID is periodically output from the antenna 15a as an electromagnetic wave of a predetermined signal. The display device detection in steps S11 and S12, which serves as both ID transmission and electromagnetic wave supply, is continuously repeated. Here, when the user approaches the transfer device 1 with the display devices 2a and 2b and is located within a distance where electromagnetic waves can be received by the received power in step S21, the display devices 2a and 2b Proceeding to step S22 using energy as electric power, information D2 including the individual IDs of the display devices 2a and 2b is sent to the transfer device 1. The transfer apparatus 1 transmits to the PC 4 as information D3 including the ID (m) of the transfer apparatus 1 in one of the individual IDs of the display apparatuses 2a and 2b detected in step S12. When the display devices 2a and 2b send the ID, the process proceeds to step S23 where the electromagnetic waves from the transfer device 1 are received and the storage battery 26 is charged with energy. Subsequently, until the command from the transfer device 1 is received in step S24, the process waits while repeating the ID transmission in step S22 and the charging operation in step S23.

  When sending an ID from the display device 2a or 2b, in order to avoid a collision caused by sending at the same timing, the ID sending timing is set by a random number using the electromagnetic wave reception in step S21 as a trigger, and the probability of simultaneous output is increased. You may take measures to lower it.

  In step S33, the PC 4 receives the detection of the display device 2a or 2b and the ID information from the transfer device 1, and detects that the device is designated for output from the individual information set in advance in step S32. Further, if it is confirmed that the specified output condition is satisfied, the process proceeds to step S34, and information processing is performed according to the output setting information set in step S32. Here, since the setting for outputting the document 1 with the copy attribute (image quality deterioration rate 5%) to the display device 2a with ID = n1 and the display device 2b with ID = n2 is recorded in the output setting, it is detected first. The PC 4 having received the ID information of the display device 2a processes the information of the material 1 stored in the PC 4 or the external storage device 4M of the PC 4 into image information having a size that can be displayed on the electronic paper, and proceeds to step S35. In step S35, an image output command is transmitted as information D4 to the transfer device 1 with ID = m that detects the display device 2a with ID = n1.

  In the information D4, as shown in the configuration diagram of the information D4 in Embodiment 1 of the present invention in FIG. 6 (a), as command information, an operation command (in this example, an image display) that is information for instructing device operation, It consists of a transfer device ID and a display device ID indicating the command destination, image data to be transferred (in this example, the image of the document 1), command attached information for setting details regarding the operation command, and the like. Note that the command ancillary information of this embodiment includes command ancillary information such as an image quality deterioration rate of 5% and a copy generation number limit value as an ancillary operation setting in the image display operation.

  If there is no setting to be commanded in the output setting recorded in step S32, the process transits to the event waiting state shown in FIG.

  When the transfer device 1 receives the command information D4 from the PC 4 in step S13, the command is processed. Since the transfer device 1 detects and grasps whether the display recording device 2a with ID = n1 is located within the receivable range of the transfer device 1, if it is within the range, the process proceeds to step S14 as a command process. move on. If the designated display device 2a cannot be detected, the process waits while repeating steps S11 to S12 until it can be detected. Since the command here is an image output of the material 1 to the display device 2a with ID = n1, in step S14, along with the command information indicating that the output is to the display device 2a with ID = n1 in step S13, The image information of the material 1 and the command attached information are transmitted from the antenna 15a as information D5.

  When the display device 2a recognizes that it is an image output command to itself in step S24, the display device 2a stores the image information of the material 1 sent together in the built-in ROM / RAM 22.

  In step S25, the display device 2a displays an image based on the received image data (FIG. 7 (a) showing the original image data in the first embodiment of the present invention) and the command attached information with the image quality deterioration rate of 5%. Drawing processing is performed (FIG. 7 (b) is a diagram showing image data after image degradation processing of the original image data in the first embodiment of the present invention), and the processed image is written into the electronic paper unit 200a. When all the received information writing is completed in the display drawing processing step, the process proceeds to step S26, and a command processing completion signal D6 is transmitted to the transfer apparatus 1 together with the command information and ID information.

  Here, FIG. 6B is a flowchart showing the image quality deterioration process according to Embodiment 1 of the present invention. The image quality deterioration process of this example will be described with reference to this figure.

  In the display drawing process, a random number from 1 to 100 is generated in step S42 every time one pixel is acquired from the image data. Since the image quality deterioration rate is 5%, the random number generated in step S43 is compared with “5”. If the random number is the same or smaller, pixel processing is performed in step S44. If it is larger, it is checked in step S45 whether the image data is the last pixel. If not, the same processing is repeated for the next pixel in step 46. If it is the last pixel, the process ends at step 47.

  In the pixel processing in step S44, the image quality deterioration process is performed by superimposing noise by replacing the original image data as black or white. Note that the superimposed noise is not a random number but may be a fixed aperiodic pattern corresponding to the image quality deterioration rate.

  In addition, as a noise superimposing method, instead of blackening or whitening a pixel, information inversion (white → black, black → white) of a pixel selected with a specific probability or processing of the target pixel and its surrounding pixels is performed. Arithmetic processing may be used. It should be noted that a processing method that can realize these processes even with simple hardware is desirable.

  When the image quality processed data is drawn on the electronic paper and completed, the executed display image quality deterioration rate of the command attached information in the display device 2a is rewritten from 0 to 5%.

Returning to FIG. 5B, when the transfer device 1 receives the command completion from the display device 2a in step S15, it outputs the response signal D7 from the antenna 15a, and proceeds to step S16. Further, in step S16, the command completion information D8 is transmitted from the PC interface 13a to the PC 4,
The process proceeds to step S17 waiting for a response from the PC 4.

  After the command is output in step S35, the PC 4 proceeds to step S36 and waits for the command completion information D8 from the transfer device 1. When the command completion information D8 is confirmed, the PC 4 transmits a response signal D9 to the transfer device 1. Proceed to S37. In step S <b> 37, the PC 4 records that a part of the designated processing is completed as a history in a storage unit (not shown) in the PC 4 or an external storage device 4 </ b> M connected to the PC 4. For example, recording of the count value of the number of times of copying, log information such as the ID of the copy destination display device and copying time is recorded.

  Next, an unexecuted process of outputting the image of the material 1 to the display device 2b is performed through the transfer device 1 in the same manner as the output operation to the display device 2a.

  When the transfer apparatus 1 receives and confirms the response signal D9 from the PC 4 in step S17, the transfer apparatus 1 returns to the first step S11 and repeats the same operation for the display apparatus 2b.

  Further, when the display device 2a is moved to copy the display image of the display device 2a to the display device 2c in another similar environment (not shown), the image data deteriorated by 5% and the executed display image quality are displayed. Attached information of the deterioration rate (5%) and the image quality deterioration rate (5%) set when the information source (information provider) is output for the first time is transferred from the display device 2a via another transfer device 1. The information is transferred to the PC 4, and the information is sent from the PC 4 to the display device 2 c via another transfer device 1.

  In addition, by increasing the CPU 11 and the memory capacity of the transfer device 1 and installing a processing program to make it highly functional, information can be directly transferred from the display device 2a to the display device 2b via the transfer device 1 without the intervention of the PC 4. Can also be communicated.

  Further, in steps S26, S15, and S16, the command completion information D6 and D8 are output. However, it is also possible to transmit the command intermediate process information to the transfer device and the PC 4 several times until the processing is completed. it can.

  In the display device 2c, 5% image quality deterioration processing is further performed on the received 5% deteriorated image data to be displayed. Here, the executed display image quality deterioration rate of the command attached information in the display device 2c is rewritten from 5% to 10%. Note that the image quality deterioration rate is maintained at 5%.

  In this case, if 20 generations are copied, all black, all white, or black and white ratio is 50%, and the image becomes completely unreadable, and the same effect as copying by analog can be obtained.

  According to the electronic paper system having such a configuration, the transfer device 1 communicates with the display devices 2a and 2b in a non-contact manner, detects the display devices 2a and 2b, and causes the information program 3 to recognize the solid identification information on the display side. In addition to performing various data processing based on information and processing procedures set and registered in advance based on individual identification information, image information and operation commands are sent to an arbitrary transfer device to control display on a desired display device. Can be managed.

  Therefore, after setting the output, it is possible to display desired information on arbitrary display information simply by bringing the display device closer to the transfer device, so that an unprecedented printing solution environment can be provided.

  In addition, since electronic paper can be repeatedly written and erased, it can be used for the purpose of reducing paper resources that have been wasted by trial output of created materials.

In addition, by providing auxiliary information for copying, the image quality can be degraded by gradually reducing the contrast of the image information each time copying is performed by a simple method, and the number of copying can be limited. Therefore, various restrictions such as information security and copyright maintenance are possible even for acts such as copying.

  In addition, even if the display device is moved and becomes unable to communicate in the middle before copying is completed and the processing is interrupted, the display device is brought closer to the transfer device again by managing the processing progress information. When communication is possible, only the remaining copy information can be transferred, and the operational stability can be improved.

  In the description of the present embodiment, as an example of the information processing, the information 1 is processed from the information of the material 1 to the image information having a size that can be displayed on the electronic paper. Increased efficiency by alerting users, reconfirming, and summarizing information through various information processing, such as processing as image information or adding other information to document 1 and processing it as image information・ Various conveniences such as advertising effects can be realized.

  For example, the name information D1 of the copying user can be added to the image, as shown in FIG. 7C, which shows the image data with the original image data information added thereto in the first embodiment of the present invention.

  In addition, as shown in FIG. 7D, which shows image data with the original image data information added in the first embodiment of the present invention, image display constraint information D2 about the period and place is added to the image. You can also

  Furthermore, the example of the image quality degradation rate has been explained as an attribute of copying, but the total number of copies can be limited for information with complete image quality by giving the original information without degradation attributes such as the number of simultaneous copying and the total number of copying. It is possible to set a restriction such as permitting copying only to a specific group member.

(Embodiment 2)
FIG. 8 is a configuration diagram of the electronic paper system according to Embodiment 2 of the present invention. 8, the same components as those in FIGS. 2 to 7 are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 8 shows a configuration of a complex system using an electronic paper system in which a plurality of transfer apparatuses 1 and a PC 4 are arranged in a room.

  In FIG. 8, the present embodiment includes a table 7 for placing the PC 4 and the transfer device 1 and a wall 8 that partitions the room. As another form of the transfer device 1, a function capable of wirelessly connecting to a network is provided. An electronic paper system is configured by providing the transfer device 1B with the connecting device.

  Each information program 3 is installed in the PC 4 to which the transfer device 1 is connected.

  However, one information program 3 becomes a master for managing and controlling the whole, and the other operates in cooperation with the information program 3 set as the master. These cooperative operations are performed in the operation block S30 for the process of FIG.

FIG. 9 is a block diagram of a transfer apparatus according to Embodiment 2 of the present invention. In FIG. 9, the same components as those in FIG. The transfer device 1B has almost the same configuration as the transfer device 1, and the difference is a wireless communication interface circuit 13b compatible with wireless communication such as Bluetooth or wireless LAN whose interface circuit with a PC is a known technology. The antenna 15b and the power supply circuit 19 are provided.

  The transfer device 1B is always connected to the network, and management thereof is performed by the information program 3 set as a master capable of managing the entire system.

  Therefore, individual ID information is set in the ROM / RAM 12 that is a storage element built in the transfer apparatus 1. With this ID information, the information program 3 can identify a plurality of transfer devices.

  In addition, the power supply circuit 19 can also be comprised by the means which does not utilize AC power supply, such as a dry cell and a solar cell.

  According to such a configuration, the transfer device 1 communicates with the display device 2 in a non-contact manner, detects the display device 2, and recognizes the information program 3 based on the individual identification information on the display side. According to the information and the processing procedure, the location management of the display device 2 and the warning for taking out to the user and the control and management of the display information can be performed.

  For example, the copy information can be displayed on a display device arranged nearby via a transfer device at another location. In addition, a copy instruction can be issued in advance to the transfer device in the conference room, and information can be drawn on the display device when the display device brought by the participant is held over the transfer device.

  Further, when the display device is taken out from the designated area, an instruction to erase information can be sent to the display device to erase the image. In addition, a warning sound can be emitted from the transfer device or PC on the spot or specified on the display device in response to a warning action set in advance, such as when the display device is taken out from the specified area or within the detectable range. The display information can be automatically deleted or the information can be updated at the time.

  Therefore, it is possible to construct a wide usage environment in which electronic paper and display information management can be systematically used by the electronic paper system.

  Although not described in abbreviated manner, information for control and management of display information and users and devices is processed in a coordinated manner between PCs.

(Embodiment 3)
FIG. 10 is a block diagram of a display device according to Embodiment 3 of the present invention. 10, the same components as those in FIG. 3 are denoted by the same reference numerals, and description thereof is omitted. The display device 2 shown in FIG. 10 is configured such that a recording can be written on two surfaces by sandwiching writing on the electronic paper between the two surfaces. In FIG. 9, the recording surface 27 </ b> A connected to the recording control circuit 28 has an electronic paper 200 b that is a recording unit, and can be brought into close contact with the electrode sheet 201. Note that the 2B portion surrounded by a broken line is a circuit other than the display portion, and can be integrated into a single chip.

  Therefore, the electronic paper 200b is placed on the recording surface 27A of the display device 2 and is used in a state of being sandwiched between light-transmissive electrode sheets 201 having transparent electrodes disposed on the entire surface.

  Here, the electronic paper 200b is detachable from the display device 2 by controlling the opening and closing of the electrode sheet 201 with respect to the recording surface 27A by a mechanism (not shown), and this detachment control is managed by the information program 3. .

  11A is a cross-sectional view of the electronic paper according to Embodiment 3 of the present invention, FIG. 11B is a view showing a cross-sectional portion of the electronic paper according to Embodiment 3 of the present invention, and FIG. Sectional part BB of (a) is shown.

  A plurality of pixel electrodes 27AS are arranged on the recording surface 27A, and are connected to the recording control circuit 28 by wiring (not shown). A transparent electrode 201S is provided on the surface of the electrode sheet 201 that is in contact with the electronic paper 200b. An electric field is generated between the transparent electrode 201S and the pixel electrode 27AS, and writing is performed on the electronic paper 200b. be able to.

  FIG. 12A is a configuration diagram of the electronic paper according to the third embodiment of the present invention, and FIG. 12B is a cross-sectional view illustrating the writing operation when the electronic paper is according to the third embodiment of the present invention. ) Shows a cross-sectional part CC in FIG. In the electronic paper 200b, the wireless tag 210 is adhered and sandwiched between the light-transmitting sheets 200S with a non-conductive binder 200T, like the microcapsule 200M, outside the display region 200p including the microcapsule 200M.

  The RFID tag 210 known as RFID (Radio Frequency IDentification) is a similar circuit block such as the CPU 21, ROM / RAM 22, RF conversion circuit 23, AC / DC conversion circuit 24, antenna 25, and storage battery 26 shown in the display device 2. It is configured and is practically as small as sesame grains.

  The wireless tag 210 is configured to directly perform wireless communication with the transfer device 1, perform wireless communication with the display device 2, or wirelessly communicate with a tag reader (not shown) built in the scanner 6. Can do.

  In the display device 2 of the electronic paper system having such a configuration, information can be viewed and carried while being sandwiched between the transparent electrode sheets 201, so that the convenience of using the electronic paper without turning up can be improved. . Similar to this, the form of carrying a document with a clear file (product name) on stationery is generally used, but in addition to this conventional convenience, the display on the electronic paper is rewritten. Since it is possible, the amount of paper to carry can be reduced. Further, since the electronic paper after recording can be taken out and viewed, the user is lighter when lifting, so that the fatigue can be reduced as compared with the case where the display device is lifted and viewed.

  Further, even when the electronic paper has a specification that can be detached from the display device 2, the removed electronic paper and its information management can be performed without the attachment / detachment mechanism mounted on the display device 2 for monitoring purposes. Further, if the image is read by the scanner 6, tag information attached to the paper can be read simultaneously with the image data, so that continuity such as unified management of information and copy restrictions can be maintained.

  For example, if the image quality degradation rate described above is set, the image quality degradation processing can be continued before image data output from the scanner is output to the PC. Further, if the copy is prohibited, it is possible to prohibit image reading and output a warning that it is a copyright violation.

  Although one wireless tag is mounted in this embodiment mode, a plurality of wireless tags or a plurality of types of wireless tags corresponding to different wireless frequencies may be mounted. Furthermore, although the wireless tag 210 made of a semiconductor chip is incorporated here, a circuit pattern made of an organic semiconductor may be patterned on the light transmissive sheet 200S.

  According to such a configuration, the simultaneous detection performance of a plurality of electronic papers can be improved, and an electronic paper with a uniform thickness is possible.

(Embodiment 4)
FIG. 13 is a block diagram of a display device according to Embodiment 4 of the present invention. In FIG. 13, the same components as those in FIG. The display device 2 of FIG. 13 is configured so that writing to the electronic paper 200b can be performed with lines from the surface, and 27 is in contact with the electronic paper 200b and sandwiched between the common electrode (electrode sheet) 201 and the electronic paper 200b. A line type recording head having a plurality of pixel electrodes for applying an electric field to the recording head, 28 is a recording control circuit for applying a voltage to the pixel electrodes of the recording head 27, and 29 is shown for the electronic paper 200b. A drive motor 29C for moving the recording head 27 in the XY direction in a non-conveying mechanism, and a motor drive circuit 29C for controlling the operation of the drive motor 29.

  14A is a cross-sectional view of the electronic paper according to the fourth embodiment of the present invention, FIG. 14B is a diagram showing a cross-sectional portion of the electronic paper according to the fourth embodiment of the present invention, and FIG. 14 (b) shows a cross-sectional part DD, and is composed of a microcapsule 200M having an electronic ink function and a non-conductive binder 200T for bonding to a light-transmitting sheet 200S having a light-transmitting property for sandwiching the microcapsule 200M. This is a very simple example.

  In this embodiment, the both sides of the electronic paper are the transparent light-transmitting sheets 200S, but one of them may be a non-transparent sheet or a metal-deposited sheet. As the electronic paper, an electronic paper 200b with a built-in wireless tag can be used.

  FIG. 15 is a schematic diagram showing a writing operation to the electronic paper in the fourth embodiment of the present invention. By switching the voltage and polarity applied between the pixel electrode 27S and the common electrode (electrode sheet) 201 by the recording control circuit 28 on one pixel electrode 27S of the recording head 27 in which the pixel electrodes are arranged in a line, the microcapsule The charged particles 200K and 200W in 200M are electrophoresed, the display image is written in a line shape below the recording head 27, and the recording head 27 is moved in the Y direction to record the next line. Thus, the entire surface of the electronic paper 200b can be written.

  Although the recording head 27 is moved by the transport mechanism, the position of the recording head 27 can be fixed and the electronic paper 200b can be moved by the transport mechanism (not shown).

  In the display device 2 of the electronic paper system having such a configuration, the writing section of the electronic paper can be simplified and can be produced at low cost.

(Embodiment 5)
In the embodiment shown in FIG. 10 and FIG. 13 described above, only one sheet of electronic paper 200b, which is a display device of the display device 2, is set so as to be detachable from the display device 2, but a plurality of electronic papers are set. It is also possible to make a structure in which the paper can be attached and detached individually. Further, a plurality of electronic papers having different sizes can be individually attached and detached. Further, the electronic paper is fixed to the display device 2 and cannot be attached or detached, and the information storage means can be incorporated in the display device 2.

With the display device 2 of the electronic paper system having such a configuration, more information can be displayed at a time, and only necessary information can be easily carried. Furthermore, if the storage means is built in, display information can be received and stored together with the management information, and information can be written, erased and managed by the display device 2 alone, so that more information can be displayed independently. It becomes possible to make it.

(Embodiment 6)
In the display device 2 of FIG. 13 described above, writing is performed by moving the recording head 27 with respect to the electronic paper 200b. However, the recording head 27 is fixed and the electronic paper 200b is conveyed like a thermal printer. You can also.

  According to this configuration, the display device 2 of the electronic paper system can be made smaller.

(Embodiment 7)
Although not described in the transfer device 1 shown in FIGS. 2 and 9, the transfer devices 1 and 1B can have display function means such as a liquid crystal display.

  According to such a configuration, more information can be provided and instructions can be provided for warnings and cautions to the user in the transfer device of the electronic paper system, and convenience can be improved.

(Embodiment 8)
In FIG. 2 and FIG. 9 described above, the buzzer 18 is provided. However, in addition to the buzzer 18, other means such as vibration to be recognized by the user and blinking by light can be mounted. Further, a warning means can be provided by a warning sound from the buzzer 18 of the PC 4 or a display on the display screen. Further, it is possible to provide warning means for writing from the display device 2 to the electronic paper unit 200a and the electronic paper 200b.

  According to such a configuration, user perception regarding warnings and the like can be further improved.

(Embodiment 9)
The electronic paper recording unit of the display device 2 shown in FIGS. 3, 10, and 13 can form a circuit with an organic semiconductor. In particular, the switching element 27BT shown in FIG. 4B is desirably an organic field effect transistor.

  For example, PEDOT (poly-ethylene dithio thiophene), which is a conductive polymer, is drawn by an inkjet method to form a source, a drain, and a gate, and a conjugated polymer with a film pressure of 30 nm or less on the source and drain. The top gate structure TFT (Thin) is formed by forming a semiconductor insulator layer by spin coating, forming a polymer insulator layer having a film pressure of 500 nm thereon by spin coating, and forming a gate thereon. (Film Transistor) can be realized.

  According to such a configuration, the display device 2 or the electronic paper unit can be made thinner and lighter.

(Embodiment 10)
An antenna mounted on the transfer device 1, the display device 2, or the scanner 6 can be made of an organic material.

For example, the antenna is composed of a metal plate, a magnetic material, and a conductor pattern. In order to prevent unnecessary electromagnetic field radiation from the surface of the transfer device 1 placed on the table, a metal sheet such as aluminum is used on one side of the antenna unit, and a magnetic material, a magnetic material, or a dielectric is formed thereon. A hybrid material that is a mixture of an inorganic material and a polymer organic material is laminated with a press or the like, and an antenna pattern is formed on the conductive material with a very low resistance by an ink jet method. create. In this sheet-like antenna, an apparatus is configured by mounting an IC chip with a built-in peripheral circuit so as to be in contact with the end of the antenna pattern.

  Note that the antenna of the display device 2 does not have to have a metal plate for shielding.

  Electromagnetic induction can be used when power transmission is performed in a contactless manner between the transfer device and the display device, but in general, an antenna using a coil used in a PHS terminal or an electric razor has its power transmission. The efficiency was as low as about 20 to 30%, and a coil with a large number of turns was wound around the ferrite core in order to increase the extraction voltage, so the size was also large.

  In this embodiment mode, by performing power transmission / reception at a high frequency of 100 kHz or higher, an organic material can be used and efficiency can be improved.

  Therefore, according to such a configuration, the transfer device 1 and the display device 2 can be made smaller and thinner and lighter.

(Embodiment 11)
Although the antenna and the wireless tag mounted on the transfer device 1 and the display device 2 are configured by one type, they can be configured by a plurality of different antennas and wireless tags so as to use different wireless systems.

  FIG. 16 is a configuration diagram of electronic paper according to Embodiment 11 of the present invention. 16, 2CM is an IC (Integrated Circuit) of the circuit block shown in FIG. 13, 25S is an antenna for communicating with the transfer apparatus 1, and 25P is an antenna for receiving power supply from the transfer apparatus 1. It is. The power antenna 25P can be arranged around the display portion so that the area can be increased.

  Here, these antennas can be configured by patterning a metal material or an organic material on a sheet and depositing or coating on the same layer as a display medium such as a microcapsule used for a display portion.

  Furthermore, in the storage battery 16, a sheet-like capacitor can be arranged on the lower surface of the sheet.

  In FIG. 16, the antenna is disposed in the peripheral portion. However, it is also possible to provide the antenna on the entire back surface, particularly in the case where the electronic paper unit 200 a is a thermal recording method such as leuco paper.

  According to this configuration, it is possible to improve the power transmission efficiency of the transfer device 1 and the display device 2 and reduce the thickness of the device. Also, the communication time can be shortened.

(Embodiment 12)
The display device 2 can incorporate a remaining amount detecting means for the storage battery 16. Further, status information such as the remaining amount detection result, the communication connection state with the transfer apparatus 1 and the power reception sensitivity can be displayed on a part of the display unit of the electronic paper or on a dedicated display unit provided separately.

According to such a configuration, in the use of the display device 2, the number of pages for display rewriting and the speed prediction,
Furthermore, the communication status with the transfer device 1 can be grasped, and the usage position of the display device 2 can be confirmed and the usability when carried can be improved.

(Embodiment 13)
The scanner 6 is equivalent to the transfer device, or is equipped with a reader function for a wireless tag, and further can be provided with a function for processing a read image and a function for connecting to a network.

  According to such a configuration, even if an image recorded on a tag-attached paper or a removable electronic paper is optically read and copied by a scanner, image information can be directly obtained by taking over copy restrictions and restrictions from the tag. Can be processed. In addition, by sending the read tag information to the PC's information program, it is possible to link with the database information built into the PC, and the scope of copyright maintenance and security management can be expanded. You can build a mechanism that can respond.

(Embodiment 14)
FIG. 17A is an internal block diagram of the transfer device in the electronic paper system according to the fourteenth embodiment of the present invention, and FIG. 17B is a cross-sectional view of the transfer device in the electronic paper system according to the fourteenth embodiment of the present invention. In FIG. 17, the same components as those in FIG. The transfer apparatus 1 of FIG. 17 is an example in which a plurality of antennas 15p for power supply, a connection circuit 14s, and an antenna drive circuit 14b are added to the antenna 15a for wireless communication and its antenna drive circuit 14a. The output of the antenna drive circuit 14b is connected to a power supply antenna 15p by a connection circuit 14s provided for each antenna. Each connection circuit 14s is also connected to the CPU 11, and the CPU 11 controls the connection operation. In addition, the transfer device 1 includes a power supply circuit 19 as a power supply function of the present device.

  Here, the operation of the drive circuit of the antenna drive circuit 14b is controlled according to the number of connections so that predetermined energy is emitted from each antenna even if the number of antennas 15p connected by the connection circuit 14s changes. It is desirable.

  The antenna 15p can output an electric field, a magnetic field, or an electromagnetic wave in a direction perpendicular to the surface of the plate-shaped transfer device 1, such as a ferrite core wound or a pattern formed with reactance. It is. A plurality of antennas 15p are arranged so as to cover the entire surface of the transfer device 1.

  In addition, in order to prevent energy emission to the back surface that is in the back surface direction with respect to the front surface of the transfer device 1, a magnetic material (for example, ferrite) that reduces loss on the back surface side of the antenna and a metal on the outside thereof It is desirable to provide a shield.

  FIG. 18A is a configuration diagram of a display device according to Embodiment 14 of the present invention, and FIG. 18B is a cross-sectional view of the display device according to Embodiment 14 of the present invention. 18A and 18B, the same components as those in FIG. 16 are denoted by the same reference numerals, and description thereof is omitted. In the display device 2, a plurality of power receiving antennas 25P are arranged around the display area. Each antenna 25P is connected to the pattern in parallel, and is connected to the IC circuit unit 2CM formed into a chip. The electric power received by the antenna 25P is converted into an arbitrary constant voltage in the IC circuit unit 2CM and supplied to the storage battery 26 disposed on the back side of the display area 200p.

The operation of the wireless power supply embodiment between the display device and the transfer device will be described with reference to FIGS. When the display device 2 is placed on an arbitrary position on the sheet-like transfer device 1 and the transfer device 1 detects the presence of the display device 2 by wireless communication, the transfer device 1 periodically updates the display device 2. The position detection operation on the transfer device 1 is performed.

  Here, the position detection operation will be described below. The CPU 11 controls the connection circuit 14 s so that only one connection circuit 14 s in the transfer apparatus 1 is connected to the antenna 15 p. Then, energy is emitted from the connected antenna 15p. When receiving this energy by the antenna 25P, the display device 2 can detect that the IC circuit unit 2CM has received a predetermined electromotive force.

  And if there exists the detected electromotive force, the electromotive force information will be transmitted to the transfer apparatus 1 by radio | wireless communication. The transfer device 1 sequentially controls the connection devices, outputs energy one by one from the antenna, and records the communication response result from the display device 2.

  The transfer device 1 can estimate and grasp the position of the display device 2 on the transfer device 1 from the received electromotive force information. Therefore, energy is supplied wirelessly only from the antenna of the transfer apparatus 1 that is located under the display device 2 and leads to efficient power supply except under the display area 200p.

  Here, the size of the antenna is preferably such that the antenna 15p is smaller than the antenna 25P.

  In the electronic paper system having such a configuration, if the display device 2 is placed on the transfer device 1, the display device 2 is detected by communication in a non-contact manner, and emission of unnecessary electromagnetic waves is suppressed to supply power wirelessly. It can be carried out. Therefore, in this usage mode, it is easy to supply sufficient power to the storage battery of the display device 2, and when the user wants to write and display, the information program 3 immediately recognizes the solid identification information on the display side. Based on the solid identification information, it performs various data processing from information and processing procedures set and registered in advance, and sends image information and operation commands from the transfer device and is located where it can communicate with the transfer device. The display on the desired display device can be controlled and managed.

  Furthermore, even when a foreign object such as a metal, a metal sheet, or a magnetic body that shields or absorbs electromagnetic waves is sandwiched between the display device 2 and the transfer device 1, a predetermined electromotive force is generated. By not using the antenna for which information could not be obtained in the transfer apparatus 1 without connecting it, it is possible to prevent unsafety and energy loss in wireless power supply.

(Embodiment 15)
The transfer device 1 is provided with many antennas 15p so as to cover the surface, and the display device 2 is also provided with many antennas 25P. However, the display device 2 is provided with the antennas 25P only at the four corners, Further, the transfer device 1 may be configured such that a mark is provided on the surface of the transfer device 1 so that the position of the antenna 15p is known, and the number of each antenna is thinned out.

  At this time, when the user uses the antenna, the antenna 15p of the transfer device 1 and the antenna 25P of the display device 2 may be placed so as to coincide with each other.

  According to such a configuration, the apparatus is simplified and can be made inexpensive.

(Embodiment 16)
The transfer device 1 may have a small shape such as a mouse pad, but is further large and can be incorporated into the top of an office desk or conference table.

According to this configuration, the transfer device can be easily used without the user being aware of it.

  In the above-described electronic paper, the operation of the electrophoretic method for displaying with an electric field has been described. However, the display medium of the electronic paper can be controlled by an electric field, such as liquid crystal, and other methods that can hold the display without power. Of course, it can also be used.

  Further, the same function can be achieved even when a rewritable thermal paper such as leuco paper is used and the pixel electrode on the recording surface is formed of a heating element.

  The electronic paper system according to the present invention can display information on a highly portable display device, and can manage images and information to be displayed and input, and the display device or electronic paper. Therefore, the present invention can be applied as an electronic paper system that can easily copy and distribute information, and can reduce wasteful paper output and manage security of output information that was impossible with paper. be able to.

1 is a configuration diagram of an electronic paper system according to Embodiment 1 of the present invention. FIG. 1 is an internal block diagram of a transfer device according to Embodiment 1 of the present invention. The internal block diagram of the display apparatus in Embodiment 1 of this invention (A) Cross-sectional view of electronic paper in Embodiment 1 of the present invention, (b) A diagram showing a cross-sectional portion of electronic paper in Embodiment 1 of the present invention, (c) Electronic paper in Embodiment 1 of the present invention Of the pixel drive circuit (A) Transition diagram of information program in the first embodiment of the present invention, (b) Flow chart showing an outline of operation in the first embodiment of the present invention. (A) Configuration diagram of information D4 in Embodiment 1 of the present invention, (b) Flow chart showing image quality degradation processing in Embodiment 1 of the present invention. (A) The figure which shows the original image data in Embodiment 1 of this invention, (b) The figure which shows the image data after the image degradation process of the original image data in Embodiment 1 of this invention, (c) This The figure which shows the image data which added the information of the original image data in Embodiment 1 of invention, (d) The figure which shows the image data which added the information of the original image data in Embodiment 1 of this invention The block diagram of the electronic paper system in Embodiment 2 of this invention Block diagram of a transfer apparatus according to Embodiment 2 of the present invention The block diagram of the display apparatus in Embodiment 3 of this invention (A) Sectional drawing of electronic paper in Embodiment 3 of this invention, (b) The figure which shows the cross-sectional part of electronic paper in Embodiment 3 of this invention (A) The block diagram explaining the write-in operation at the time of the electronic paper in Embodiment 3 of this invention, (b) The block diagram explaining the electronic paper in Embodiment 3 of this invention The block diagram of the display apparatus in Embodiment 4 of this invention (A) Cross-sectional view of electronic paper in Embodiment 4 of the present invention, (b) Diagram showing a cross-sectional portion of electronic paper in Embodiment 4 of the present invention Schematic diagram showing the writing operation to the electronic paper in Embodiment 4 of the present invention Configuration diagram of electronic paper in Embodiment 11 of the present invention (A) Internal block diagram of transfer device in electronic paper system of embodiment 14 of the present invention, (b) Cross-sectional view of transfer device in electronic paper system of embodiment 14 of the present invention (A) The block diagram of the display apparatus in Embodiment 14 of this invention, (b) Sectional drawing of the display apparatus in Embodiment 14 of this invention

Explanation of symbols

1, 1B Transfer device 2, 2a, 2b Display device 3 Information program 4 Personal computer (PC)
5 Cable 11 CPU
12 ROM / RAM
13a interface circuit 14 antenna drive circuit 14a, 14b antenna drive circuit 14s connection circuit 15a, 15b, 15p antenna 16 storage battery 17 buzzer drive circuit 18 buzzer 19 power supply circuit 21 CPU
22 ROM / RAM
23 RF conversion circuit 24 AC / DC conversion circuit 25, 25S, 25P Antenna 26 Storage battery 27 Recording head 27A Recording surface 27AS Pixel electrode 27B Display unit 27BS Pixel electrode 27BT Switching element 27S Pixel electrode 28 Recording control circuit 28C, 28R Drive circuit 200a Electronic Paper part 200b Electronic paper 200p Display area 200M Microcapsule 200S Light transmissive sheet 200T Non-conductive binder 201 Electrode sheet 201S Transparent electrode 210 Wireless tag

Claims (20)

Based on the electronic paper that maintains the display state in the non-powered state and displays an image by applying magnetism or an electric field, wireless tag means for receiving an electromagnetic wave signal from the outside, and reception information received by the wireless tag means A display device including a recording control unit that generates an image and records the image on the electronic paper, and a personal computer (hereinafter referred to as a PC) are connected to the wireless tag unit of the display device. An electronic paper system comprising: a transfer device that transfers a radio signal such as magnetism or an electric field; and an image reading device that is connected to the PC and reads an image. An information program for creating and managing information to be output to the display device is mounted on the PC, and an individual identification symbol (hereinafter referred to as ID) is provided in the display device, and the information program passes through the transfer device. The electronic paper system according to claim 1, wherein the ID information is recognized, and information is created and managed according to the recognized ID and a prior processing procedure. Means for setting copy setting conditions (hereinafter referred to as image quality deterioration rate) for determining the quality of an image to be copied are provided, and display image data and images of a display device serving as a copy source when transferring a display image between different display devices Means for transferring the deterioration rate to the copy destination display device via the transfer device is provided, so that the display image data is processed and displayed on the copy destination display device in accordance with the image quality deterioration rate. The electronic paper system according to claim 1 or 2, wherein the electronic paper system is configured as described above. A means is provided for setting copy setting conditions for determining the number of times that copying can be performed. When the display image data and copy setting conditions of the display device that is the copy source are transferred to the copy destination display device via the transfer device, the copy destination 4. A display device according to claim 1, further comprising means for adding or subtracting the number of times of copying of the copy setting condition to clear all display image data and not displaying it when a predetermined value is reached. The electronic paper system according to any one of the items. The transfer device has a power supply function, supplies power to the display device by electromagnetic waves, and the display device includes a storage battery that generates power from the received electromagnetic waves and stores the power. The electronic paper system according to any one of claims 1 to 4. The electronic paper system according to claim 1, wherein the electronic paper is detachable from the display device. When reading the display image of the electronic paper by the image reading device connected to the PC, the read image data is based on the description information of the wireless tag by communicating with the wireless tag mounted on the electronic paper. An electronic paper system according to claim 6, further comprising means for image processing. 8. The electronic paper system according to claim 6, further comprising means for controlling an attachment / detachment mechanism between the electronic paper and the display device from the information program. The wireless tag used as the means for mounting the individual ID is built in either or both of the removable electronic paper and the display device. The electronic paper system according to item. The electronic paper system according to any one of claims 1 to 9, wherein the transfer device has the individual ID and includes an interface circuit for connecting to a network. 11. The electronic paper system according to claim 1, wherein at least one of the transfer device and the display device has warning means such as a buzzer. 12. The information program according to claim 1, wherein when the information program is installed on a plurality of individual PCs, the information program on each PC operates in cooperation to perform information management and processing. The electronic paper system according to item. The electronic paper according to any one of claims 1 to 12, wherein the wireless tag of the display device or the electronic paper has a function of reading and writing data similar to the transfer device. system. The electronic paper system according to claim 1, wherein the image reading device is connectable to a network. The electronic paper system according to claim 1, wherein the transfer device includes a plurality of different types of antennas. The electronic paper system according to claim 1, wherein the display device includes a plurality of antennas. 17. The electronic paper system according to claim 16, wherein, in the transfer device having the plurality of antennas, only some of the antennas that can supply power to the display device are driven to supply power. The electronic paper system according to any one of claims 1 to 17, wherein, in the transfer device having the antenna, a magnetic body and a metal shield are provided on one side of the antenna to limit an output direction of the electromagnetic wave. . The electronic paper system according to any one of claims 1 to 18, wherein an antenna used for the electronic paper system device is formed of an organic material. The electronic paper system according to claim 1, wherein the transfer device of the electronic paper system is incorporated in a table.

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