JP6205693B2 - Electronic underlay device and electronic paper - Google Patents

Description

  The present invention relates to an electronic underlay device for recording and displaying desired information on an electronic paper using a paper-like non-volatile display device, and the electronic paper.

  In recent years, a paper-like non-volatile display device called electronic paper has been developed. This electronic paper has a display surface for displaying and holding images in a non-powered state, and is thin and flexible while not reaching paper, and can be written / erased by supplying power. Thus, various contents such as text and images can be displayed and held (see, for example, Patent Documents 1 to 3).

  The applicant has filed a patent application for an electronic paper recording apparatus that allows electronic content to be displayed on the electronic paper by placing the electronic paper on an underlay and performing handwriting (see, for example, Patent Document 4).

  In this electronic paper recording apparatus, in a server client system in which a combination of a base sheet and paper is a thin client, default screen data corresponding to the combination of the base sheet and paper is generated and stored in advance in the server. (Virtual paper client) By loading paper on the underlay, screen data corresponding to the combination can be read and displayed. When handwritten entry is made on the paper screen data, the screen data including the handwritten locus can be updated on the server.

JP 2006-039834 A JP 2001-31227 A JP 2003-058081 A JP 2007-323365 A

  However, in the conventional electronic paper recording apparatus, it is necessary to store screen data including handwritten data on the server for each combination of the underlay and the paper, and when the number of combinations increases The data capacity stored on the server becomes enormous.

  The present invention has been made in view of such a problem, and redisplays the display data of the content corresponding to the underlay on which the electronic paper is placed on the electronic paper without causing a problem in the data capacity on the server. It is an object of the present invention to provide an electronic underlay device and electronic paper that can be made to operate.

Electronic pad device according to the present invention is an electronic pad device electronic paper is mounted detachably, to the content ID display data stored in the mounted electronic paper is registered in the pre-Me own device When the display data is the corresponding display data, the display control means for displaying the display data on the electronic paper when the electronic paper is attached, and the display data stored in the attached electronic paper are automatically stored in advance. when was the display data corresponding to different content ID from the content ID that is registered in the apparatus, the display data corresponding to the different content ID when the electronic paper is mounted has not been displayed on the electronic paper registration means for registering a content ID corresponding to the display data which has been the display to the own device Once, as comprising the That.
Further, electronic pad device according to the present invention is an electronic pad device electronic paper is detachably attached, the content display data stored in the mounted electronic paper is registered in the pre-Me own device Display control for displaying the stored display data on the electronic paper if the display data is not displayed on the electronic paper when the electronic paper is mounted when the display data corresponds to the ID Means.
An electronic underlay apparatus according to the present invention is an electronic underlay apparatus to which electronic paper is detachably attached, and a paper ID corresponding to the attached electronic paper is displayed in display data stored in the electronic paper. when in association with the corresponding content ID has been registered in the pre-Me own device, and a display control means for said display data to be displayed on the electronic paper when the electronic paper is mounted, the mounted electronic paper When the paper ID corresponding to is a paper ID different from the paper ID previously registered in the own device , display data is displayed on the attached electronic paper when the electronic paper is attached. If a registration unit for registering a paper ID corresponding to the electronic paper in association with the corresponding content ID to the display data to the own device, further comprising a It is a symptom.
An electronic underlay apparatus according to the present invention is an electronic underlay apparatus to which electronic paper is detachably attached, and a paper ID corresponding to the attached electronic paper is displayed in display data stored in the electronic paper. when in association with the corresponding content ID has been registered in the pre-Me own device, the display data display data to the electronic paper is the storage if not displayed when the electronic paper is mounted And display control means for displaying on the electronic paper.
The electronic underlay apparatus according to the present invention is an electronic underlay apparatus to which electronic paper is detachably attached, and the electronic paper storing display data in association with the corresponding content ID is attached. And a paper ID corresponding to the electronic paper, a paper ID corresponding to the electronic paper, and a content corresponding to the display data when the paper detecting means detects that the electronic paper is attached. An ID transmitting unit that connects to a server device that registers and associates an ID, and transmits a base ID corresponding to the electronic base unit and a paper ID corresponding to the attached electronic paper; and the ID transmitting unit Display target reception for receiving the content ID registered in the server device in association with the base ID and the paper ID transmitted by And display control means for displaying on the electronic paper display data stored in the attached electronic paper in association with the content ID received by the display target receiving means. It is said.

An electronic paper according to the present invention is an electronic paper which is detachably attached to an electronic underlay and stores a plurality of display data, and an underlay detection means for detecting that the electronic paper is attached to the electronic underlay, and the underlay detection. Display object acquisition means for acquiring a content ID to be displayed from the electronic underlay, and display data corresponding to the content ID acquired by the display target acquisition means when it is detected by the means Display presence / absence determination means for determining whether or not the display data corresponding to the acquired content ID is stored by the display presence / absence determination means. And display control means for displaying on electronic paper.
An electronic paper according to the present invention is an electronic paper that is detachably attached to an electronic base and stores a plurality of display data, wherein the plurality of pieces of paper are associated with the base ID corresponding to each of the plurality of electronic bases. Display target storage means for storing content IDs corresponding to the display data of each of the display data, an underlay detection means for detecting attachment to the electronic underlay, and when the underlay detection means detects attachment to the electronic underlay In addition, an ID acquisition unit that acquires a base ID from the electronic base and a display presence / absence that determines whether or not a content ID associated with the base ID acquired by the ID acquisition unit is stored in the display target storage unit The display target storage unit stores the content ID associated with the base ID acquired by the determination unit and the display presence determination unit. If it is determined that, being a display control unit for displaying the display data stored in correspondence with the content ID to the electronic paper, comprising the.

  According to the present invention, it is possible to redisplay the display data of the content corresponding to the base on which the electronic paper is placed on the electronic paper without causing a problem in the data capacity on the server.

1A and 1B are diagrams showing a configuration of an electronic paper recording apparatus (single-sided type) 10A according to an embodiment of the present invention, where FIG. 1A is a perspective view showing an external configuration, and FIG. 1B is a single electronic paper (single-sided). The front view which extracts and shows the type 11A. 1A and 1B are diagrams showing a configuration of an electronic paper recording apparatus (double-sided type) 10B according to an embodiment of the present invention, where FIG. 1A is a perspective view showing an external configuration, and FIG. 1B is a single electronic paper (double-sided). Type) Front view showing 11B extracted as the back surface. It is a figure which shows the structure of the electronic paper 11A, 11B in the said electronic paper recording apparatus 10A, 10B, The figure (A) is a block diagram which shows the electronic paper (single sided type) 11A from the front side, The figure (B) is the figure. The block diagram which shows electronic paper (double-sided type) 11B seeing from the back side. It is a figure which shows the structure of electronic underlay 12A, 12B in the said electronic paper recording apparatus 10A, 10B, The figure (A) is the block diagram which shows the electronic underlay (single-sided type) 12A from the front, The figure (B) is The block diagram which sees and shows the left surface of the spread type electronic base 12B, The figure (C) is a longitudinal cross-sectional block diagram of the electronic bases 12A and 12B (right side). In the electronic paper recording apparatuses 10A and 10B, an electromagnetic induction unit (planar type) for performing power supply and communication connection to the electronic papers 11A and 11B provided corresponding to the binder units 13 and 16 of the electronic underlays 12A and 12B. The figure which shows a structure. In the electronic paper recording apparatus 10A, 10B, an electromagnetic induction portion (convex surface type) for performing power supply and communication connection to the electronic paper 11A, 11B provided corresponding to the binder portions 13, 16 of the electronic underlays 12A, 12B. The figure which shows a structure. FIG. 2 is a block diagram showing a configuration of an electronic circuit when the electronic paper recording devices 10A and 10B are incorporated as a cloud computing system terminal on a network N. The figure which shows the content of the electronic paper management table (underlay) 54 memorize | stored and managed in the information storage device 30 of the electronic underlay 12B (12A) of the said electronic paper recording apparatuses 10A and 10B. The figure which shows the content of the display content memory | storage part 21D memorize | stored and managed in the information storage device 21 of the electronic paper 11B (11A) of the said electronic paper recording apparatuses 10A and 10B. The flowchart which shows the process (the 1) in the electronic foundations 12A and 12B of 1st Embodiment in the cloud computing system which incorporated the said electronic paper recording apparatuses 10A and 10B as a terminal. The flowchart which shows the process (the 2) in the electronic foundations 12A and 12B of 1st Embodiment in the cloud computing system incorporating the said electronic paper recording apparatuses 10A and 10B as a terminal. The flowchart which shows the process in electronic paper 11A, 11B in the cloud computing system which incorporated said electronic paper recording apparatus 10A, 10B as a terminal. The block diagram which shows the structural example in the case of using the electronic paper recording apparatus 10B which concerns on 2nd Embodiment of this invention as a terminal, connecting to the electronic paper management server 53 on the network (Internet) N by a web access base. FIG. 6 is a view showing the contents of an electronic paper management table (server) 62 stored and managed by an electronic paper management unit 58b of the electronic paper management server 53. The flowchart which shows the process (the 1) in the electronic underlay 12B of 2nd Embodiment replaced with a part of the process (the 1) in the electronic underlay 12A of the 1st Embodiment shown in the said FIG. The flowchart which shows the process (the 2) in the electronic underlay 12B of 2nd Embodiment added to the process in the electronic underlay 12A, 12B of 1st Embodiment shown in the said FIG. 10 and FIG. 9 is a flowchart showing processing in an electronic paper management server 53 in a cloud computing system in which the electronic paper recording apparatus 10B of the second embodiment is incorporated as a terminal. The figure explaining main operation | movement of 10 A of electronic paper recording apparatuses which concern on 3rd Embodiment of this invention, and 10B. The figure explaining main operation | movement of 10 A of electronic paper recording apparatuses which concern on 4th Embodiment of this invention, and 10B.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram showing a configuration of an electronic paper recording apparatus (single-sided type) 10A according to an embodiment of the present invention. FIG. 1 (A) is a perspective view showing an external configuration, and FIG. It is a front view which extracts and shows electronic paper (single sided type) 11A.

  This electronic paper recording device (single-sided type) 10A has a plurality of electronic papers (single-sided type) 11A having a non-volatile display device 17 on the surface thereof, and an electronic on which the plurality of electronic papers 11A. Each electronic paper 11A... Is bound with a single-sided binder portion 13 provided at the center of the left side of the electronic base 12A with the center of the left side being sandwiched.

  The electronic underlay 12A includes, for example, an electromagnetic induction type tablet 14 corresponding to the mounting surface of the electronic paper 11A... On the surface thereof, and the tablet 14 places the handwritten position on the uppermost electronic paper 11A with the electronic pen 15. The corresponding coordinate position is detected. The display storage device built in the electronic paper 11A is connected to the non-contact type power supply means and communication means (see FIGS. 3 to 6), which will be described later, provided using the binder unit 13. Display data corresponding to the detected coordinates of the handwritten position or display data of various contents acquired from an external information providing device is stored, and the non-volatile display device 17 of the electronic paper 11A is displayed.

  The non-volatile display device 17 of the electronic paper 11A, for example, encloses and encloses black particles charged to + and white particles charged to-alternately in a matrix between transparent electrode plates, and one electrode plate is-( When it is negatively charged, it becomes black, and when it is charged positively, it becomes white. The electrode plate is charged to the polarity of the last applied voltage when a voltage is applied, and there is no power supply. The display at is retained.

  Thereby, not only display data input from the outside through the electronic underlay 12A and its binder unit 13 can be displayed on the electronic paper 11A, but also handwritten data directly written by the electronic pen 15 can be displayed. In addition, the electronic paper 11A can be handled in the same way as normal paper by removing it from the electronic underlay 12A as shown by an arrow a in FIG.

  FIG. 2 is a diagram showing a configuration of an electronic paper recording apparatus (double-sided type) 10B according to an embodiment of the present invention. FIG. 2 (A) is a perspective view showing an external configuration, and FIG. It is a front view which shows the electronic paper (double-sided type) 11B as an extracted back surface.

  A plurality of electronic paper (double-sided type) 11B... Used in this electronic paper recording device (double-sided type) 10B has the aforementioned non-volatile display devices 17R and 17L on both the front and back surfaces, respectively, and a spread type. One end portion is penetrated and bound by the spread binder portion 16 provided in the center of the electronic underlay 12B.

  The spread-type electronic underlay 12B includes, for example, electromagnetic induction type tablets 14R and 14L on the mounting surface of the electronic paper 11B on the left and right spread surfaces, respectively. A coordinate position corresponding to the handwritten position on the front surface of the upper electronic paper 11B and the rear surface of the upper left electronic paper 11B is detected. Then, with respect to a display storage device built in the electronic paper 11B via a non-contact type power supply means and a communication means (see FIGS. 3 to 6), which will be described later, provided corresponding to the spread binder section 16. Display data corresponding to the detected coordinates of each handwritten position on the front surface and the back surface, or display data of various contents acquired from an external information providing device is stored, and the electronic paper 11B is stored on both sides of the non-volatile display devices 17R and 17L. Display operation with.

  As a result, not only the display data input from the outside through the electronic underlay 12B and its spread binder 16 can be displayed on the front and back surfaces of the electronic paper (double-sided type) 11B, but also directly written by the electronic pen 15. Handwritten data can also be displayed on the front and back surfaces, and the electronic paper 11B is removed from the electronic underlay 12B as shown by an arrow c in FIG. Can be handled in the same way.

  FIG. 3 is a diagram showing a configuration of the electronic paper 11A, 11B in the electronic paper recording apparatus 10A, 10B. FIG. 3A is a configuration diagram showing the electronic paper (single-sided type) 11A as viewed from the front side. (B) is a block diagram showing electronic paper (double-sided type) 11B as seen from the back side.

  The configuration of the electronic paper (single-sided type) 11A and the configuration of the electronic paper (double-sided type) 11B viewed from the front side are the same.

  The electronic paper 11A, 11B is provided with a non-volatile display device (front) 17 (17R), (back) 17L over almost the entire area of the center, and the binding portion 18 is controlled by a flexible IC chip. A device 19, an ID storage unit 20 for storing individual electronic paper IDs, and an (information) storage device 21 for storing display data are incorporated as both front and back sides.

  Further, a non-contact type electromagnetic induction power supply unit 22 is built in both the front and back around one binder through hole 16a provided in the center of the binding portion 18, and the other binder through hole 16b A non-contact type communication device 23 is built in both the front and back sides.

  In addition, input devices 24 (24R) and 24L using keys, touchpads, and the like are provided on the upper front side of the electronic papers 11A and 11B and the upper back side of the electronic paper 11B, respectively, and the binding portion on the upper side of the papers At the end opposite to 18, overlap detection sensors 25 (25 R) and 25 L using optical sensors are provided.

  And in the four corner positions of the non-volatile display devices (front) 17 (17R), (back) 17L in the electronic papers 11A, 11B, the electronic paper 11A, 11B has the electronic underlay tablets 14 (14R), 14L. Calibration pointers 26a to 26d for detecting the displacement of the placement position are built in as both front and back sides.

  FIG. 4 is a diagram showing the configuration of the electronic underlays 12A and 12B in the electronic paper recording apparatuses 10A and 10B. FIG. 4A is a configuration diagram showing the electronic underlay (single-sided type) 12A as viewed from the front. (B) is a block diagram showing the double-sided electronic underlay 12B when viewed from the left side, and (C) is a vertical cross-sectional view of the electronic underlays 12A and 12B (right side).

  The configuration of the electronic underlay (single-sided type) 12A viewed from the front is the same as the configuration of the double-sided electronic underlay 12B viewed from the right side.

  The electronic underlays 12A and 12B are provided with, for example, electromagnetic induction type tablets 14 (14R) and 14L over almost the entire area of the center, and the paper binding unit 27 includes a control device 28 including an IC chip, An ID storage unit 29 for storing the electronic underlay ID, and an (information) storage device 30 for storing display data for the electronic papers 11A and 11B are incorporated.

  In addition, input devices 31 (31R) and 31L for using an underlay using keys and a touch pad are provided at the right end of the electronic underlay 12A, 12B and the left end of the electronic underlay 12B, respectively, and an LCD is provided at the upper end. Contact type display I / F (interface) 32 for connecting a display device such as a monitor that requires constant power supply to a connector, an external connection device for connection to an external communication network or a server computer on the network 33 is provided.

  Further, an electromagnetic induction power supply unit 35 (35R), 35L is built in the central portion corresponding to the binder position of the paper binding unit 27. From the electromagnetic induction power supply unit 35 (35R), 35L by electromagnetic induction. Power supply cores 34 (34R) and 34L for supplying non-contact power to the electronic paper 11A and 11B are provided.

  Further, communication devices 37 (37R) and 37L are built in a central portion corresponding to the binder position of the paper binding portion 27, and the electronic papers 11A and 11B are electromagnetically induced from the communication devices 37 (37R) and 37L. Communication cores 36 (36R) and 36L are provided for performing non-contact communication.

  The electronic underlays 12A and 12B include, for example, a rechargeable battery 38. The tablet 38 (14R) and 14L, the control device 28, the ID storage unit 29, the storage device 30, and the underlay input device are provided by the battery 38. 31 (31R), 31L and an external display device connected via the contact type display I / F 32 are each supplied with electric power, and the electromagnetic induction power supply units 35 (35R), 35L supply power core 34. Electric power is supplied to the electronic papers 11A and 11B placed on the electronic underlays 12A and 12B through (34R) and 34L in a non-contact manner.

  FIG. 5 shows an electromagnetic induction unit for performing power supply and communication connection to the electronic papers 11A and 11B provided corresponding to the binder units 13 and 16 of the electronic underlays 12A and 12B in the electronic paper recording apparatuses 10A and 10B. It is a figure which shows the structure of a plane type.

  This electromagnetic induction part (planar type) is based on electromagnetic induction with respect to the electromagnetic induction power supply part 22 and the communication part 23 of the binding part 18 of the electronic paper 11A, 11B that does not have the binder through holes 16a, 16b (see FIG. 3). For power supply and communication connection, in any case of electronic paper (single-sided type) 11A and (double-sided type) 11B, electromagnetic induction power supply units 35 (35R) and 35L of electronic underlays 12A and 12B and a communication device 37 (37R), 37L is provided with a paper inner core 40 at a position corresponding to the exposed end surface of the underlying core 39, and a planar coil 41 for signal extraction is provided so as to surround the inner core 40 of the paper. Built in.

  In the case of the electromagnetic induction portion of the electronic underlay (single side type) 12A shown in FIG. 5A1, the underlay side core 39 is also extended inside the binder portion 13 for binding the electronic paper (single side type) 11A. Together with the inner core 40 of the electronic paper (single-sided type) 11A, a magnetic flux loop of electromagnetic lines of force is formed with less loss. In FIG. 5A1, reference numeral 42 denotes a hinge having a binding force of the binder portion 13.

  That is, when the paper inner cores 40 are provided in the binding portion 18 of the electronic paper (single-sided type) 11 </ b> A... Since the magnetic resistance is reduced and the magnetic flux loop is smoothly formed with less leakage flux, the power source energy signal output from the electromagnetic induction power supply units 35 (35R) and 35L of the electronic underlays 12A and 12B, and the communication unit 37 ( 37R), 37L, the communication signals transmitted from the underlay side coil 43 through the underlay side core 39 are efficiently transmitted from the paper inner cores 40 ... of the electronic paper 11A, 11B to the paper side planar coil 41, and the electromagnetic Power is supplied to the induction power supply unit 22 and received by the communication unit 23.

  FIG. 6 shows an electromagnetic induction unit for performing power supply and communication connection to the electronic papers 11A and 11B provided corresponding to the binder units 13 and 16 of the electronic underlays 12A and 12B in the electronic paper recording apparatuses 10A and 10B. It is a figure which shows the structure of a convex surface type.

  This electromagnetic induction part (convex surface type) is a power source by electromagnetic induction for the electromagnetic induction power supply part 22 and the communication part 23 of the binding part 18 of the electronic paper 11A, 11B having the binder through holes 16a, 16b (see FIG. 3). As shown in FIG. 6A1, in the case of electronic paper (single-sided type) 11A, the electromagnetic induction power supply unit 35 and the communication device 37 of electronic underlay (single-sided type) 12A are used. The corresponding convex core 39a serving as a binder is inserted into and locked in the binder through holes 16a and 16b in the binding portion 18 of the electronic paper (single-sided type) 11A, and the electronic paper (single-sided type) 11A is bound.

  As shown in FIG. 6B, in the case of electronic paper (double-sided type) 11B, it is also used as a binder provided corresponding to electromagnetic induction power supply unit 35 and communication device 37 of electronic underlay (double-sided type) 12B. The convex ring-shaped core 39b (16) is inserted and locked into the binder through holes 16a and 16b in the binding portion 18 of the electronic paper (double-sided type) 11B, and the electronic paper (double-sided type) 11B is bound. In FIG. 6B, reference numeral 44 denotes a hinge having a binding force of the spread binder portion 16 (39b).

  In the case of the electromagnetic induction part of the electronic underlay 12A, 12B for the electronic paper 11A, 11B having the binder through holes 16a, 16b shown in FIG. 6, in the case of one electronic underlay (single-sided type) 12A, In any case of the other electronic underlay (double-sided type) 12B, the binder-convex convex core 39a or the binder-convex ring-shaped core 39b passes through the binder through holes 16a, 16b of the electronic paper 11A, 11B. Since the annular core is formed, the magnetic flux lines of the magnetic field lines are formed without loss.

  That is, the power supply energy signal output from the electromagnetic induction power supply units 35 (35R) and 35L of the electronic underlays 12A and 12B and the communication signal transmitted from the communication units 37 (37R) and 37L are transmitted from the underlay side coil 43. Through the binder-convex convex core 39a or the binder-convex ring-shaped core 39b, the data is more efficiently transmitted to the paper-side planar coil 41 of the electronic paper 11A, 11B, and the power is supplied to the electromagnetic induction power supply unit 22 for communication. It is received by the unit 23.

  On the other hand, when handwriting is performed with the electronic pen 15 on the electronic paper 11A (11B) placed on the tablet 14 of the electronic base 12A (12B), the writing position by the electronic pen 15 is the electronic base 12A (12B). The coordinates are detected by the tablet 14.

  At this time, the placement position of the electronic paper 11A (11B) on the tablet 14 is determined by the coordinates of the positions of the calibration pointers 26a to 26d formed by the electromagnetic induction coils being detected by the tablet 14. The positional deviation of the coordinates from the mounting position is calculated and detected by the control device 28 of the electronic underlay 12A (12B).

  As a result, the coordinate position detected by the tablet 14 of the electronic underlay 12A (12B) accompanying the writing operation with the electronic pen 15 on the electronic paper 11A (11B) is the same as that of the calculated electronic paper 11A (11B). Correction is made in accordance with the amount of positional deviation from the specified mounting position, and writing locus display data is stored in the (information) storage device 21 from the communication unit 23 of the electronic paper 11A (11B) according to the corrected writing coordinate position. Then, the handwritten data display on the non-volatile display device 17 is performed.

  Also, for example, one electronic paper 11B (A) is opened on the left tablet 14L of the electronic underlay (double-sided type) 12B, and two electronic papers 11B are (C) on the right tablet 14R. In the state of being overlaid in the order of (B), the back side overlap detection sensor 25L of the electronic paper 11B (A) on the left tablet 14L detects light reception and determines that there is no overlap, and the calibration pointer Since the coordinate position is detected by the tablet 14L by 26a to 26d, the electronic paper 11B (A) is determined to be valid (active) on the left side of the electronic underlay (double-sided type) 12B.

  For the two electronic papers 11B (C) (B) superimposed on the right tablet 14R, any electronic paper 11B (C) (B) is detected by the tablet 14R by the calibration pointers 26a-26d. On the other hand, since the light reception is detected only by the front side overlap detection sensor 25R of the electronic paper 11B (B) and it is determined that there is no overlap, the electronic paper 11B (B) is the electronic underlay (double-sided type) 12B. It is determined to be valid (active) on the right side.

  When there is neutral electronic paper 11B, the front and back side overlap detection sensors 25R and 25L detect light reception and determine "no overlap", while electromagnetic induction signals from the calibration pointers 26a to 26d. Is not detected by any of the left and right tablets 14L, 14R in the electronic underlay 12B, the neutral electronic paper 11B is determined to be invalid (inactive).

  Accordingly, in the control device 28 of the electronic underlay 12B, the electronic paper 11B, which is connected in a non-contact communication manner via the electromagnetic induction unit, is associated with each ID (A) (B) (C). By detecting the overlap presence / absence detection by the front / back overlap detection sensors 25R, 25L, the active presence / absence detection by the calibration pointers 26a to 26d, and collecting and managing each paper size, the effective (active) on the left and right tablets 14L, 14R. The electronic paper 11B can be discriminated, and display data of various contents acquired from an externally connected information terminal, handwritten data by the electronic pen 15 detected by the left and right tablets 14L and 14R, or input from the input devices 31L and 31R The character data, etc. that are valid (active) via the electromagnetic induction part Nonvolatile display unit 17L having the ID of the electronic paper 11B, it can be displayed on the 17R.

  FIG. 7 is a block diagram showing a configuration of an electronic circuit when the electronic paper recording devices 10A and 10B are incorporated as terminals of a cloud computing system on the network N.

  According to this, display data of arbitrary content selectively acquired from the information providing server 53W on the network N is displayed on the electronic paper 11A (11B) by incorporating a Web browser in the electronic base 12B (12A). Can be made.

  As described with reference to FIG. 3, the electronic circuit of the electronic paper 11 </ b> A (11 </ b> B) is, for example, a nonvolatile display device 17 ( 17R, 17L), ID storage unit 20, information storage device 21, electromagnetic induction power supply unit 22, communication device 23, input device 24 (24R, 24L), overlap detection sensor 25 (25R, 25L), calibration pointers 26a to 26d. Is connected.

  As described with reference to FIG. 4, the electronic circuit of the electronic underlay 12B (12A) is composed of tablets 14R, 14L (centered on the control device 28 composed of a low-function CPU, which is a flexible IC chip computer, for example. 14), ID storage unit 29, information storage device 30, input devices 31R, 31L (31), contact type display I / F 32, external connection device 33, electromagnetic induction power supply units 35R, 35L (35), communication device 37R, 37L (37) and the power supply part (battery) 38 are connected.

  The electronic paper 11A (11B)... Is placed on the tablets 14R and 14L (14) by the binder portion 16 (13) with respect to the electronic underlay 12B (12A) as shown in FIGS. By placing and binding, the electromagnetic induction power supply units 35R and 35L (35) of the electronic underlay 12B (12A) are transferred to the electronic paper 11A (11B) via the electromagnetic induction unit as shown in FIGS. Are electromagnetically connected to the electromagnetic induction power source 22 and the communication devices 37R and 37L (37) of the electronic underlay 12B (12A) are electromagnetically connected to the communication device 23 of the electronic paper 11A (11B).

  Then, the coordinates of the electromagnetic induction signals generated from the calibration pointers 26a to 26d of the electronic paper 11A (11B)... Are detected by the tablets 14R and 14L (14) of the electronic base 12B (12A). The placement position of the electronic paper 11A (11B) with respect to 14L (14) is detected.

  The electronic pen 15 includes an ID storage unit 15a that stores the pen ID, an IC chip control unit 15b that reads the pen ID stored in the ID storage unit 15a and generates and outputs a code signal, and the control unit 15b. The communication device 15c includes a coil that converts the generated code signal of the pen ID into an electromagnetic induction signal and outputs the electromagnetic induction signal.

  Program data for the control device 19 to control each circuit section of the electronic paper 11A (11B) is stored in the information storage device 21, and the information storage device 21 has specifications of the electronic paper 11A (11B). In addition to certain unique information, not only key operation input from the input device 24 (24R, 24L), but also handwritten position detection input from the electronic pen 15 by the electronic pad 12B (12A), or from an externally connected information providing server 53W Display data for displaying on the nonvolatile display device 17 (17R, 17L) data corresponding to input of various contents such as text and images is also stored.

  In the information storage device 21 of the electronic paper 11A (11B), display data of various contents displayed by the non-volatile display device 17 (17R, 17L) of the electronic paper 11A (11B) is stored in the content ID. A storage area (refer to FIG. 9) for saving in association is secured.

  Program data (including a Web browser) for the control device 28 to control each circuit portion of the electronic underlay 12B (12A) is stored in the information storage device 30, and each electronic device bound is stored in the information storage device 30. In addition to management information (see FIG. 8) for managing the paper 11A (11B)..., The electronic pen 15 by the tablets 14R and 14L (14) as well as key operation inputs from the input devices 31R and 31L (31). Is sent to the electronic paper 11A (11B) that is currently active (active) according to the input of handwritten position detection input from the computer or the input of various contents such as text and images from the externally provided information providing server 53W. Display data for display is also temporarily stored.

  Then, the display device 45 is bound to the binder portion 16 (13) of the electronic underlay 12B (12A) in the same manner as the electronic paper 11A (11B)... , 52. Also in the display device 45, data corresponding to input of handwritten position detection from the electronic pen 15 by the electronic pad 12B (12A) or input of various contents such as text and images from the externally connected information providing server 53W. It can be displayed on the LCD display device 46.

  Here, the information providing server 53W on the network N that is externally connected to the external connection device 33 of the electronic base 12B (12A) is a PC or mobile phone connected to the external connection device 33 by wired communication or wireless communication. The communication terminal device 61 such as a telephone may be relayed and connected, or may be directly connected.

  Note that the electronic paper management server 53 on the network N shown in FIG. 7 will be described in a second embodiment to be described later.

  FIG. 8 is a view showing the contents of an electronic paper management table (underlay) 54 stored and managed in the information storage device 30 of the electronic underlay 12B (12A) of the electronic paper recording devices 10A and 10B.

  In the specific example of FIG. 8, an electronic paper management table (underlay) 54 stored and managed by the double-sided type electronic underlay 12B (underlay ID: A) is shown.

  In the electronic paper management table (underlay) 54, when the electronic paper 11B is bound to the binder portion 16 of the electronic underlay 12B and placed on the tablets 14R, 14L, communication is performed from each of the electronic paper 11B. The received unique information (electronic paper ID, front and back codes, size) of each electronic paper 11B, overlap detection information by the overlap detection sensors 25R and 25L, and the positions of the calibration pointers 26a to 26d of each electronic paper 11B. The correction information of the handwritten position recognized by the coordinate detection by 14R and 14L and the active (valid) information determined by adding the overlap detection information are stored and displayed on the front and back of each electronic paper 11B. Display information (content ID of display data, handwritten data And its position) is also stored.

  Of the various types of information stored in the electronic paper management table (underlay) 54, the overlap detection information, handwritten position correction information, and active (valid) information are updated and stored in real time.

  Therefore, according to the electronic paper management table (underlay) 54, the currently valid (active) electronic paper 11A (11B) on the right and left sides of the electronic underlay 12B (12A) is recognized, and the valid (active) electronic paper ID. The operation signal input processing, display data display processing, and registration processing based on the above are executed.

  FIG. 9 is a diagram showing the contents of the display content storage unit 21D stored and managed in the information storage device 21 of the electronic paper 11B (11A) of the electronic paper recording devices 10A and 10B.

  In the specific example of FIG. 9, a display content storage unit 21D that is stored and managed by the double-sided electronic paper 11B (paper ID: B) is shown.

  The display content storage unit 21D is, for example, mounted instead of the plurality of electronic underlays 12B... And the display data of various contents is active (effective) in accordance with power supply and display control from the respective electronic underlays 12B. Each time it is displayed on the non-volatile display devices 17R and 17L on (1) or the back surface (2), the display data is stored and stored in association with the content ID.

  That is, the electronic paper 11B (11A) stores and holds display data of various contents displayed by the paper itself.

  Next, an operation when the electronic paper recording apparatuses 10A and 10B having the above-described configuration are incorporated as a terminal of a cloud computing system (see FIGS. 7 to 9) will be described.

  FIG. 10 is a flowchart showing the processing (part 1) in the electronic underlay 12A, 12B of the first embodiment in the cloud computing system in which the electronic paper recording devices 10A, 10B are incorporated as terminals.

  FIG. 11 is a flowchart showing a process (part 2) in the electronic underlay 12A, 12B of the first embodiment in the cloud computing system in which the electronic paper recording devices 10A, 10B are incorporated as terminals.

  Here, processing in the electronic base 12B having the base ID “A” will be described.

  In the electronic underlay (double-sided type) “A” 12B of the electronic paper recording apparatus (double-sided type) 10B, the fact that the electronic paper (double-sided type) 11B is attached is the electromagnetic induction power supply units 35R and 35L and the communication in the binder unit 16. When the control device 28 determines that the connection is detected in the devices 37R and 37L (step S1 (Yes)), the paper ID is read from the ID storage unit 20 of the attached electronic paper 11B, and the paper ID Is registered in the electronic paper management table (basement) 54 (see FIG. 8) stored in the information storage device 30 (step S2).

  For example, when the electronic paper (ID; B) 11B is attached to the electronic underlay 12B for the first time, it is determined that the paper ID is not registered in the electronic paper management table (underlay) 54 (step S2 ( No)), whether or not there is a display on the non-volatile display device 17 is determined based on whether or not display data of some content is stored in the information storage device 21 of the electronic paper 11B (step S3).

  When it is determined that no content is displayed on the non-volatile display device 17 of the electronic paper 11B (step S3 (No)), a change in display is instructed according to a user operation of the input device 24 of the electronic paper 11B. (Step S4 (Yes)), in Step S15 to be described later, it is determined whether or not display data of a plurality of contents has been read from the display content storage unit 21D of the information storage device 21 of the electronic paper 11B (Step S4). S5).

  Here, when it is determined that the display data of the plurality of contents has not been read (step S5 (No)), the communication terminal device directly from the communication terminal device 61 such as a PC or the like via the external connection device 33 Arbitrary content display data is selectively acquired from the information providing server 53W on the network N via 61 (step S6) and displayed on the non-volatile display device 17 of the electronic paper 11B (step S7).

  Then, the combination of the paper ID read from the ID storage unit 20 of the electronic paper 11B and the content ID of the arbitrary content display data displayed this time is an electronic paper management table (underlay) 54 of the information storage device 30 ( It is determined whether it is registered (see FIG. 8) (step S8).

  When it is determined that the combination of the paper ID of the electronic paper 11B and the content ID of the display data is not registered in the electronic paper management table (base) 54 (step S8 (No)), the electronic paper A combination of the paper ID of the electronic paper 11B and the content ID of the display data is registered in the management table (underlay) 54 (step S9).

  Specifically, as shown in FIG. 8, the content ID “301” is stored in association with the active (valid) surface “1” of the electronic paper ID “B”. At this time, since the display data “D301” of the content ID “301” is displayed on the electronic paper “B” 11B for the first time, the content IDs “302” and “303” in FIG. not registered.

  At this time, the display content storage unit 21D (see FIG. 9) of the electronic paper “B” 11B on which the display data “D301” of the content ID “301” is displayed corresponds to the active (valid) surface “1”. The content ID “301” and the display data “D301” are stored and stored.

  Then, with the display data “D301” of the content ID “301” being displayed on the active (valid) surface “1” of the electronic paper “B” 11B, handwritten input by the electronic pen 15 is performed by the tablet 14R. When detected (step S10 (Yes)), the locus associated with the handwritten input is displayed on the content display data “D301” being displayed on the surface “1” of the electronic paper “B” 11B. (Step S11).

  Then, the handwritten data accompanying the handwritten input and its position information are stored in the electronic paper management table (underlay) 54 of the electronic underlay “A” 12B, for example, with the electronic paper ID “B” as shown in FIG. The handwritten data “HDB11” associated with the active (valid) surface “1” and the content ID “301” and its position information “PB11” are stored (step S12).

  On the other hand, in step S2, it is determined that the paper ID “B” of the attached electronic paper 11B is not registered in the electronic paper management table (underlay) (ID; A) 54 (step S2 (No)). If it is determined in step S3 that the content (ID; 301) is already displayed on the active (valid) surface “1” of the non-volatile display device 17 of the electronic paper “B” 11B (step S3) (Yes)), the combination of the paper ID “B” and the content ID “301” is registered in the electronic paper management table (underlay) (ID; a) 54 as described above (step S14).

  At this time, the display data “D301” of the content “301” already displayed on the active (valid) surface “1” of the electronic paper “B” 11B is the display content storage section inside the paper “B” 11B. Since it has already been saved in 21D (see FIG. 9), no new memory saving process is performed.

  Then, in the state where the display data “D301” of the content ID “301” is displayed on the surface “1” of the electronic paper “B” 11B of the electronic underlay “A” 12B, the handwritten input by the electronic pen 15 is performed on the tablet. When detected by 14R (step S10 (Yes)), the locus associated with the handwritten input is displayed on the content display data “D301” being displayed on the surface “1” of the electronic paper “B” 11B. (Step S11).

  Then, the handwritten data and the position information associated with the handwritten input are displayed in the electronic paper management table (underlay) 54 of the electronic underlay “A” 12B as shown in FIG. ), The handwritten data “HDB11” associated with the front surface “1” and the content ID “301” and the position information “PB11” are stored (step S12).

  Thereafter, when it is determined that the electronic paper “B” 11B is attached to the electronic underlay “A” 12B (step S1 (Yes in step S1)), the paper ID “B” is stored in the electronic paper management table. If it is determined that it has already been registered in (underlay) 54 (step S2 (Yes)), it is determined whether display data of some content is displayed on the electronic paper “B” 11B (step S14).

  Here, for example, when it is determined that the display data “D301” of the content ID “301” is displayed on the active (valid) surface “1” of the attached electronic paper “B” 11B (step S14 ( Yes)), display data changing and registration processing according to steps S4 to S9 are executed, and handwritten data display and storage processing according to S10 to S12 are executed.

  Thereafter, for example, as shown in FIG. 8, in the electronic paper management table (basement) 54 of the electronic underlay “A” 12B, each content ID, each handwritten data, and its associated data are associated with the electronic paper ID “B”. For example, as shown in FIG. 9, in the display content storage unit 21D of the electronic paper “B” 11B, each electronic content ID and its display data are stored in association with each other, as shown in FIG. When the electronic paper “B” 11B is newly attached to the underlay “A” 12B (step S1 (Yes)), the nonvolatile display device of the active (effective) surface “1” in the electronic paper “B” 11B If it is determined that no content is displayed in 17R (step S2 (Yes) → S14 (No)), the paper in the electronic paper management table (basement) 54 is displayed. D "B", active (valid) surface "1" each content ID is registered in association with "301" "302" "303" is read out (step S15).

  Then, the content IDs that match the content IDs “301”, “302”, and “303” read from the electronic paper management table (underlay) 54 from the display content storage unit 21D of the attached electronic paper “B” 11B. Display data “D301”, “D302”, and “D303” associated with the ID is read (step S16), and the display data “D303” of the latest content ID “303” is written in the information storage device 21 and is active ( The effective surface “1” is displayed on the nonvolatile display device 17R (step S17). Note that there is one content ID registered in the electronic paper management table (underlay) 54 in association with the paper ID of the attached electronic paper 11B and its active (valid) information, and the electronic paper When there is one display data read from the display content storage unit 21D of 11B, the display data is displayed on the non-volatile display device 17 of the electronic paper 11B.

  In the electronic paper management table (underlay) 54, the effective surface “1” of the electronic paper ID “B” and the ID “303” of the content display data “D303” displayed on the nonvolatile display device 17R are stored. If it is determined that the associated handwritten data “HDB13” is registered (step S18 (Yes)), the handwritten data “HDB13” is displayed on the surface of the electronic paper “B” 11B according to the position information “PB13”. The content display data “D303” being displayed is superimposed and displayed on the nonvolatile display device 17R of “1” (step S19).

  Thereafter, when a display change is instructed in accordance with a user operation of the input device 24 of the electronic paper 11B (step S4 (Yes)), a plurality of contents are displayed from the display content storage unit 21D of the information storage device 21 of the electronic paper 11B. It is determined whether or not the content display data has been read (step S5).

  Here, it is assumed that the display data “D301”, “D302”, and “D303” associated with the three content IDs “301”, “302”, and “303” have been read from the electronic paper “B” 11B in step S16. When judged (step S5 (Yes)), a display selection menu in which a selection item for instructing external content acquisition is added to the selection items of the plurality of content display data “D301”, “D302”, and “D303” is the electronic paper. A window is displayed on the non-volatile display device 17R of the surface “1” of “B” 11B (step S20).

  When the display selection menu displayed in the window is selected in response to a user operation (step S21), it is first determined whether or not a selection item for instructing content import from the outside has been selected (step S22). .

  Here, when it is determined that the selection item for instructing content import from the outside is not selected (step S22 (No)), the plurality of content display data “D301”, “D302”, and “D303” that have been read out. When any one of the selection items is selected (step S23), the selected content display data “D301” is written in the information storage device 21 of the electronic paper “B” 11B, and the content display is performed. The data is changed and displayed on the non-volatile display device 17R having the active (valid) surface “1” on which the data “D303” is displayed (step S24).

  The electronic paper ID “B” of the electronic paper 11B and the content ID “301” of the content display data “D301” selected and displayed are associated with the electronic paper management table (base) 54 (see FIG. 8). If it is determined that the handwritten data “HDB11” is registered (step S25 (Yes)), the handwritten data “HDB11” is stored on the surface “1” of the electronic paper “B” 11B according to the position information “PB11”. The content is displayed superimposed on the content display data “D301” being displayed on the non-volatile display device 17R (step S26).

  On the other hand, if it is determined in step S22 that a selection item for instructing content import from the outside is selected from the display selection menu displayed in the window (step S22 (Yes)), the external connection device 33 is used. Arbitrary content display data is selectively acquired from the information providing server 53W on the network N directly from the communication terminal device 61 such as a PC or via the communication terminal device 61 (step S6), and the electronic paper “B It is displayed on the non-volatile display device 17R of “11B” (step S7).

  Here, the combination of the electronic paper ID “B” read from the ID storage unit 20 of the electronic paper 11B and the content ID “304” of the display data (for example, “D304”) changed and displayed this time is the electronic paper ID. If it is determined that it is not registered in the paper management table (basement) 54 (see FIG. 8) (step S8 (No)), the electronic paper ID “B” in the electronic paper management table (basement) 54 is active (valid). The new content ID “304” is additionally registered in association with the front surface “1” (step S9).

  FIG. 12 is a flowchart showing processing in the electronic paper 11A, 11B in the cloud computing system in which the electronic paper recording devices 10A, 10B are incorporated as terminals.

  When the electronic paper 11A or 11B detects that the electronic paper 11A or 11B is attached to the electronic underlay 12A or 12B based on the power supply from the electromagnetic induction power supply unit 22 or the communication connection in the communication device 23 (step P1 (Yes) ), Display data display processing and display rewriting processing for the nonvolatile display device 17 are executed under the control processing by the electronic underlays 12A and 12B described with reference to FIGS. 10 and 11 (step P2). .

  Thereafter, when it is determined that the attachment of the electronic paper 11A, 11B to the electronic paper 12A, 12B is not detected due to the removal of the electronic paper 11A, 11B from the electronic paper 12A, 12B (Step P3 (No)). The continuous elapsed time in the state removed from the underlays 12A and 12B is measured (step P4).

  When it is determined that the continuous elapsed time after removal from the electronic underlays 12A and 12B has passed a predetermined time (for example, 60 seconds) (step P5 (Yes)), the nonvolatile display device 17 The display data displayed in is deleted and is not displayed (step P6).

  When it is determined that the attachment to the electronic underlay 12A, 12B is detected again during the measurement of the continuous elapsed time after being removed from the electronic underlay 12A, 12B (step P7 (Yes)), 10. Return to the display data display process and display rewrite process for the non-volatile display device 17 under the control process by the electronic underlays 12A and 12B described with reference to FIG. 11 (step P2).

  Therefore, according to the electronic paper recording apparatuses 10A and 10B of the first embodiment having the above-described configuration, when display data of arbitrary content is displayed on the attached electronic paper 11A (11B) in the electronic underlay 12A (12B), A combination of the paper ID of the electronic paper 11A (11B) and the content ID of the display data is registered in the electronic paper management table (base) 54. In the electronic paper 11A (11B), whenever new display data is displayed, display data associated with the content ID is stored and stored in the display content storage unit 21D. When the electronic paper 11A (11B) is newly attached, the content ID combined with the paper ID of the attached electronic paper 11A (11B) registered in the electronic paper management table (underlay) 54 is read. When the content ID that is output and matches this is stored in the display content storage unit 21D of the electronic paper 11A (11B), the display data associated with the content ID is redisplayed.

  For this reason, the user can immediately read and redisplay the display data of the content previously displayed using the electronic underlay 12A (12B) by simply placing the electronic paper 11A (11B) on the underlay 12A (12B). It becomes like this. The display data of each content to be displayed on the electronic paper 11A (11B) is stored by the electronic paper 11A (11B) itself and does not need to be stored in the management server. Therefore, it is possible to cause the electronic paper to redisplay the display data of the content corresponding to the underlay on which the electronic paper is placed without causing a problem in the data capacity on the server.

  In addition, the electronic base 12A (12B) having the above-described configuration is used to display display data of arbitrary content acquired from an external communication terminal device (PC, portable terminal, etc.) 61 via the external connection device 33, or the communication terminal device (PC , Portable terminal, etc.) 61 from the information providing server 53W on the Internet N directly connected via the external connection device 33 or display data of arbitrary content acquired from the information providing server 53W on the Internet N Since the display data of the acquired arbitrary content can be displayed on the electronic paper 11A (11B), the user arbitrarily acquires the electronic paper 11A (11B) attached to each of the electronic bases 12A (12B). Display data of various contents can be displayed.

  Further, in the electronic underlay 12A (12B) having the above-described configuration, handwritten input corresponding to a user operation on the electronic paper 11A (11B) mounted on the tablet 14 is detected, and the handwritten data is stored in the nonvolatile display device 17. When displayed as superimposed data on the display data being displayed, the additional data and its position information are associated with the paper ID of the electronic paper 11A (11B) and the electronic paper management table of the information storage device 30. (Underlay) 54 is registered. When a new attachment of the electronic paper 11A (11B) is detected, the additional recording data associated with the paper ID of the electronic paper 11A (11B) is registered in the electronic paper management table (underlay) 54. If there is, the additional write data and its position information are read out and superimposed on the content display data being displayed on the electronic paper 11A (11B) and displayed again.

  Therefore, the user simply puts the electronic paper 11A (11B) on the electronic paper sheet 12A (12B), and uses the electronic paper sheet 12A (12B) to display the content display data being displayed on the electronic paper 11A (11B). The additional data previously input by the user and displayed in a superimposed manner can be immediately read out and displayed again. Therefore, the user can reconfirm the contents added on the display data of the electronic paper 11A (11B) only by a combination of the specific electronic base 12A (12B) and the electronic paper 11A (11B). There will be no problems.

  In the electronic paper recording apparatuses 10A and 10B according to the first embodiment, a new electronic document is created based on the combination of the paper ID and the content ID registered in the electronic paper management table (underlay) 54 of the electronic underlay 12A (12B). When the paper 11A (11B) is mounted, the content ID combined with the paper ID is read, and display data corresponding to the content ID is displayed on the electronic paper 11A (11B). On the other hand, as will be described in the electronic paper recording apparatus 10A (10B) of the second embodiment below, the electronic paper management server 53 provided on the cloud computing system is connected to each electronic underlay 12A (12B). By accessing, the base ID, the paper ID, and the content ID are registered in association with each other. Then, when the electronic paper 11A (11B) is newly attached to the electronic underlay 12A (12B), the content ID associated with the underlay ID and the paper ID is obtained by accessing the electronic paper management server 53. The display data corresponding to the content ID is displayed on the electronic paper 11A (11B), so that the content corresponding to the base on which the electronic paper 11A (11B) is placed on the electronic paper 11A (11B). The display data may be redisplayed.

(Second Embodiment)
FIG. 13 is a block diagram showing a configuration example when the electronic paper recording apparatus 10B according to the second embodiment of the present invention is used as a terminal and connected to the electronic paper management server 53 on the network (Internet) N on the web access base. FIG.

  The electronic paper management server 53 includes a control device 56 composed of a CPU, which is a computer. An input device 57, a storage device 58, and a display device 59 are connected to the control device 56, and a network (Internet) N is connected. A communication device 60 is connected to the terminal (electronic paper recording device 10B) and the communication terminal device 61 such as a PC or a mobile phone, or for direct communication connection.

  The storage device 58 of the electronic paper management server 53 includes an information management unit 58a for storing and managing various control information such as an electronic paper management program, and requests from each terminal (electronic paper recording device 10B ...). Accordingly, an electronic paper management unit 58b is secured for storing and managing information (content ID) to be registered or distributed in association with the base ID and the paper ID.

  FIG. 14 is a view showing the contents of an electronic paper management table (server) 62 stored and managed by the electronic paper management unit 58b of the electronic paper management server 53. As shown in FIG.

  In response to reception from the logged-in terminal (electronic paper recording apparatus 10B), the electronic paper management table (server) 62 receives the received electronic base ID, electronic paper ID, and their front and back codes and active (valid). Information and display information (content ID) for each of the front and back sides are stored in association with each other.

  Here, among the various information stored in the electronic paper management table (server) 62, the active (valid) information of the electronic paper 11A (11B) is updated and stored in real time, and the display information (content ID). Is stored newly or updated in response to receipt of the registration request.

  Next, an operation when the electronic paper recording apparatus 10B of the second embodiment having the above-described configuration is incorporated as a terminal of a cloud computing system (see FIGS. 7 to 9, 13, and 14) will be described.

  FIG. 15 shows a process (No. 1) in the electronic underlay 12B of the second embodiment that is replaced with a part of the process (No. 1) in the electronic underlay 12A, 12B of the first embodiment shown in FIG. It is a flowchart.

  The processing (steps S15a to S17a) in the electronic underlay 12B of the second embodiment is executed by replacing the processing (steps S15 to S17) in the electronic underlay 12A and 12B of the first embodiment.

  FIG. 16 is a flowchart showing a process (part 2) in the electronic underlay 12B of the second embodiment added to the processes in the electronic underlays 12A and 12B of the first embodiment shown in FIGS. .

  The processing (step S9a / S13a) in the electronic underlay 12B of the second embodiment is added and executed after the processing (step S9 / S13) in the electronic underlay 12A, 12B of the first embodiment.

  Of the processing in the electronic underlay 12B in the electronic paper recording apparatus 10B of the second embodiment, the description of the same processing contents as the processing in the first embodiment excluding the processing shown in FIGS. 15 and 16 is omitted. To do.

  FIG. 17 is a flowchart showing processing in the electronic paper management server 53 in the cloud computing system in which the electronic paper recording device 10B of the second embodiment is incorporated as a terminal.

  That is, in steps S6 to S9 of the process (part 2) in the electronic underlay 12B in FIG. 11, the display data of the content acquired from the outside such as the information providing server 53W is displayed on the attached electronic paper 11B. When the combination of the paper ID and the content ID is registered in the electronic paper management table (basement) 54 (see FIG. 8), the base ID, the paper ID, and the content ID of the electronic base 12B are externally connected. The data is transmitted to the electronic paper management server 53 via 33 and registered in the electronic paper management table (server) 62 (see FIG. 14) (step S9a).

  Further, in steps S1 to S3 of the processing (part 1) in the electronic underlay 12B in FIG. 10, the paper ID of the attached electronic paper 11B is not registered in the electronic paper management table (underlay) 54, and the electronic paper 11B When the display data of the user's arbitrary content is displayed in advance, the combination of the paper ID and the content ID is registered in the electronic paper management table (base) 54 (see FIG. 8) (step S13). ), The base ID, the paper ID, and the content ID of the electronic base 12B are transmitted to the electronic paper management server 53 via the external connection device 33, and are registered in the electronic paper management table (server) 62 (see FIG. 14) (see FIG. 14). Step S13a).

  In the electronic paper management server 53, when the combination of the base ID and the paper ID received from the electronic base 12B is not registered in the electronic paper management table (server) 62 (steps M1, M2 (No)), In the electronic paper management table (server) 62, the content ID received in association with the base ID and the paper ID is newly registered (step M3).

  Specifically, as shown in FIG. 14, for example, an electronic underlay ID “A” and an electronic paper ID “A” associated with an active (valid) back surface “2” are registered as a content ID “201”. .

  Even when the combination of the base ID and the paper ID received from the electronic base 12B is registered in the electronic paper management table (server) 62 in the electronic paper management server 53 (steps M1, M2 (Yes)). If the content ID received in association with the base ID and the paper ID is not registered, it is determined that the content ID has been updated (step M7 (Yes)), and the electronic paper management table (server) In 62, the content ID received in association with the base ID and the paper ID is additionally updated and registered (step M8).

  Thereafter, it is determined that the electronic paper 11B is newly installed in the electronic base 12B, and that the paper ID is already registered in the electronic paper management table (base) 54 (steps S1, S2 (Yes)). If it is determined that no content is displayed on the paper 11B (step S14 (No)), the base ID of the electronic base 12B and the paper ID of the attached electronic paper 12B are transmitted to the electronic paper management server 53. (Step S15a).

  When the electronic paper management server 53 determines that the combination of the base ID and the paper ID received from the electronic base 12B is registered in the electronic paper management table (server) 62 (steps M1, M2 (Yes )) If the content ID is not received together with the base ID and the paper ID, it is determined that the request is a data request from the electronic base 12B (step M4 (Yes)).

  Then, in the electronic paper management table (server) 62, for example, the electronic underlay ID “A” received from the electronic underlay 12B and the active (valid) surface “1” of the electronic paper ID “B” are associated with each other. All the registered content IDs “301”, “302” and “303” are read (step M5) and transmitted to the electronic underlay “A” 12B (step M6).

  When the content IDs “301”, “302”, and “303” transmitted from the electronic paper management server 53 are received in the electronic floor “A” 12B (step S16a), the received content ID “301” is received. Each display data “D301”, “D302”, “D303” stored in the display content storage unit 21D (see FIG. 9) of the electronic paper “B” 11B in association with the content ID that matches “302” “303”. "" Is read, and the display data "D303" of the latest content is displayed on the non-volatile display device 17R of the active (valid) surface "1" of the electronic paper "B" 11B (step S17a).

  Therefore, according to the electronic paper recording devices 10A and 10B of the second embodiment configured as described above, when display data of arbitrary content is displayed on the attached electronic paper 11A (11B) in the electronic underlay 12A (12B), The base ID of the electronic base 12A (12B), the paper ID of the electronic paper 11A (11B), and the content ID of the display data are transmitted in association with each other to the externally connected electronic paper management server 53, and the electronic paper management table ( Server) 62. In the electronic paper 11A (11B), whenever new display data is displayed, display data associated with the content ID is stored and stored in the display content storage unit 21D. When the electronic paper 11A (11B) is newly attached, the base ID and the paper ID are transmitted to the electronic paper management server 53, and the base ID registered in the electronic paper management table (server) 62 is transmitted. When the content ID associated with the combination of the paper ID and the paper ID is read and the content ID that matches the content ID is stored in the display content storage unit 21D of the electronic paper 11A (11B), the content ID The display data associated with the ID is redisplayed.

  For this reason, the user can immediately read and redisplay the display data of the content previously displayed using the electronic underlay 12A (12B) by simply placing the electronic paper 11A (11B) on the underlay 12A (12B). It becomes like this. The display data of each content to be displayed on the electronic paper 11A (11B) is stored by the electronic paper 11A (11B) itself and does not need to be stored in the management server. Therefore, it is possible to cause the electronic paper to redisplay the display data of the content corresponding to the underlay on which the electronic paper is placed without causing a problem in the data capacity on the server.

(Third embodiment)
In the electronic paper recording devices 10A and 10B of the third embodiment, when the electronic paper 11A (11B) detects that the electronic paper 12A is attached to the electronic paper 12A (12B), the electronic paper of the electronic paper 12A (12B) is detected. A content ID associated with the paper ID of the paper registered in the management table (basement) 54 is acquired, and it is determined that display data associated with the content ID is stored in the display content storage unit 21D. In this case, the display data is displayed on the nonvolatile display device 17.

  FIG. 18 is a diagram for explaining main operations of the electronic paper recording apparatuses 10A and 10B according to the third embodiment of the present invention.

  First, regarding the contents of the display data displayed on the attached electronic paper 11A (11B), the electronic underlay 12A (12B) shows the combination of the paper ID and the content ID in the electronic paper management table 54 (see FIG. 8). If not registered, the registration process is performed in the same manner as in the first embodiment (steps S1 to S3 → S13 / S4 to S9). In addition, when handwriting is input, the handwritten data is displayed (steps S10 and S11) in the same manner as in the first embodiment, and the paper ID and the paper ID are displayed in the electronic paper management table 54 (see FIG. 8). A storage process is performed in association with the content ID (step S12).

  In addition, in the electronic paper 11A (11B), each time display data of different contents is displayed, the content ID and display data are associated with each other and stored in the display content storage unit 21D, as in the first embodiment. To do.

  In the third embodiment, when the electronic paper 11A (11B) detects attachment to the electronic underlay 12A (12B), the paper is stored in the electronic paper management table (underlay) 54 of the electronic underlay 12A (12B). The content ID registered in association with the ID is acquired, and the display data corresponding to the content ID is determined from the display data associated with each content ID stored in the display content storage unit 21D. To display.

  At this time, when there are a plurality of content IDs associated with the paper ID of the electronic paper 11A (11B) and acquired from the electronic base 12A (12B), the display data corresponding to the latest content ID is determined by default. After that, when an instruction to change the display is given, arbitrary display data is displayed by selecting from the display data corresponding to the plurality of content IDs.

  Therefore, according to the electronic paper 11A (11B) of the third embodiment, display data of various contents displayed on each electronic paper 11A (12A)... Does not need to be stored and managed on the management server. It becomes possible to easily redisplay the display data of the content corresponding to the electronic underlay 12A (12B) carrying (11B).

(Fourth embodiment)
FIG. 19 is a diagram for explaining main operations of the electronic paper recording apparatuses 10A and 10B according to the fourth embodiment of the present invention.

  The electronic paper recording apparatuses 10A and 10B according to the fourth embodiment differ when the electronic paper 11A (11B) detects attachment to the electronic base 12A (12B) and displays display data of arbitrary content of the user. Each time the display data of the content is displayed, the base ID of the electronic base 12A (12B) and the content ID of the display data are associated with each other and stored in the ID storage unit 21DA of the display content storage unit 21D ′. Accordingly, the content ID and display data are associated and stored in the data storage unit 21DB of the display content storage unit 21D ′.

  When a new attachment to the electronic base 12A (12B) is detected, the base ID is acquired and stored in the ID storage unit 21DA in the display content storage unit 21D ′ in association with the base ID. And the display data associated with the content ID and stored in the data storage unit 21DB in the display content storage unit 21D ′ are discriminated and displayed.

  At this time, when a plurality of content IDs associated with the base ID of the attached electronic base 12A (12B) are stored, the display data corresponding to the latest content ID is determined and displayed by default, Thereafter, when a display change is instructed, arbitrary display data is displayed by selecting from the display data corresponding to the plurality of content IDs.

  Therefore, according to the electronic paper 11A (11B) of the fourth embodiment, it is not necessary to store and manage display data of various contents displayed on each electronic paper 11A (12A)... On the management server. It becomes possible to easily redisplay the display data of the content corresponding to the electronic underlay 12A (12B) carrying (11B).

  In addition, in any of the electronic papers 11A (11B) of the third embodiment and the fourth embodiment, when it is detected that the electronic paper 11A (12B) is attached, As in the first embodiment (see FIG. 12), it is determined that the continuous elapsed time after being removed from the electronic bases 12A and 12B has passed a predetermined time (for example, 60 seconds) set in advance. The display data is erased and not displayed (steps P3 to P7).

  In addition, in any of the electronic papers 11A (11B) of the third embodiment and the fourth embodiment, display data of some content on the non-volatile display device 17 when mounted on the electronic underlay 12A (12B). Is displayed in advance, the display state is maintained, and registration processing is performed when the content ID of the display data is not registered.

  If the display data is not displayed on the non-volatile display device 17, the display data associated with the content ID registered in accordance with the electronic base 12A (12B) is displayed.

  Furthermore, even when the display data is displayed on the electronic paper 11A (11B) mounted on the electronic base 12A (12B), the display is instructed to be changed, so that registration is performed according to the electronic base 12A (12B). The display data of an arbitrary content can be selected and displayed from among a plurality of display data associated with the plurality of content IDs.

  In the electronic paper 11A (11B) of the third embodiment and the fourth embodiment, when the electronic paper 11A (11B) in which display data of some content is displayed in advance is attached to the electronic base 12A (12B), After the content ID of the display data is registered, the display content is changed according to the electronic base 12A (12B), the registration processing, the input of handwritten data, and the display processing are performed. When registering the data content ID, the content ID is temporarily saved in the electronic paper 11A (11B) and saved. Thereafter, when it is detected that the electronic underlay 12A (12B) is removed, the display data of the temporarily stored content ID may be read and displayed again.

  Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the column of the problem to be solved by the invention If the effects described in the column “Effects of the Invention” can be obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

  Hereinafter, the invention described in the scope of claims of the present application will be appended.

[1]
An electronic underlay device on which electronic paper is detachably mounted,
Display target registration means for registering the content ID of the display data to be displayed on the electronic paper;
Paper detecting means for detecting that electronic paper storing display data in association with the content ID is attached;
Whether or not a content ID that matches the content ID registered by the display target registration unit is stored in the mounted electronic paper when the paper detection unit detects that the electronic paper is mounted. Display determination means for determining
When it is determined by the display determination means that a content ID that matches the content ID registered by the display target registration means is stored in the attached electronic paper, the display is associated with the content ID and the same. Display control means for displaying display data stored in the electronic paper on the electronic paper;
An electronic underlay device characterized by comprising:

[2]
The display object registration unit registers and registers a paper ID of electronic paper and a content ID of display data to be displayed on the electronic paper,
When the paper detection unit detects that the electronic paper is mounted, the display determination unit is associated with the paper ID and matches the content ID registered by the display target registration unit Is stored in the attached electronic paper,
The display control means stores in the electronic paper a content ID that matches the content ID registered by the display target registration means in association with the paper ID of the attached electronic paper by the display determination means. Display data stored in the electronic paper associated with the content ID is displayed on the electronic paper.
The electronic underlay device according to [1], wherein

[3]
It is detected by the paper detection means that the electronic paper is attached, and display data is displayed on the electronic paper, and it is determined whether or not the content ID of the display data is registered by the display target registration means. A registration presence / absence judging means for
The display object registration unit registers the content ID when it is determined that the content ID of the display data displayed on the attached electronic paper is not registered by the registration presence determination unit.
The electronic underlay device according to [1], wherein

[4]
An electronic underlay device on which electronic paper is detachably mounted,
Display target registration means for registering the content ID of display data to be displayed on the electronic paper in association with the paper ID of the electronic paper;
Paper detecting means for detecting that electronic paper storing display data in association with the content ID is attached;
A display target that identifies the content ID registered by the display target registration unit in association with the paper ID of the mounted electronic paper when it is detected by the paper detection unit Specific means,
Display control means for displaying on the electronic paper display data stored in the attached electronic paper in association with the content ID specified by the display target specifying means;
An electronic underlay device characterized by comprising:

[5]
When the paper detection means detects that the electronic paper is attached, the apparatus includes registration presence / absence judgment means for judging whether or not the paper ID of the attached electronic paper is registered by the display object registration means. ,
The display object registering means displays the display data displayed on the electronic paper in association with the paper ID when it is judged by the registration presence / absence judging means that the paper ID of the attached electronic paper is not registered. Register the content ID of
The electronic underlay device according to [4], wherein

[6]
A display presence / absence determining means for determining whether display data is displayed on the attached electronic paper when the paper detecting means detects that the electronic paper is attached;
When the display control means determines that display data is not displayed on the attached electronic paper, the display control means displays the display data stored in the electronic paper on the electronic paper. ,
The electronic underlay device according to [1] or [4], wherein

[7]
Display data acquisition means for acquiring display data of arbitrary content from an external device;
Arbitrary data display control means for displaying display data of arbitrary content acquired by the display data acquisition means on the attached electronic paper;
The electronic underlay device according to [1] or [4], comprising:

[8]
The external device is a communication terminal device capable of receiving various contents via a network,
The display data acquisition means acquires display data of arbitrary content received via the network by the communication terminal device through communication connection with the communication terminal device.
The electronic underlay device according to [7], wherein

[9]
The external device is a content server device existing on a network,
The display data acquisition means acquires display data of arbitrary content by direct communication connection with the content server device on the network.
The electronic underlay device according to [7], wherein

[10]
An operation position detecting means for detecting an operation position corresponding to a user operation on the electronic paper detected by the paper detecting means;
Additional recording superimposing display control means for superimposing and displaying data corresponding to the user operation position detected by the operation position detecting means as additional recording data at a corresponding position of the electronic paper;
The electronic underlay device according to [1] or [4], comprising:

[11]
Additional recording data storage means for storing additional recording data displayed superimposed on the electronic paper by the additional recording superimposing display control means in association with the paper ID of the electronic paper;
When the paper detection means detects that the electronic paper is attached, the additional data stored in the additional data storage means is read in association with the paper ID of the attached electronic paper. A postscript superimposition redisplay control means for superimposing and redisplaying,
The electronic underlay device according to [10], comprising:

[12]
An electronic underlay device on which electronic paper is detachably mounted,
Paper detecting means for detecting that electronic paper storing display data in association with the content ID is attached;
When it is detected by the paper detection means that the electronic paper is mounted, the electronic device is connected to a server device that registers the underlay ID of the electronic underlay, the paper ID of the electronic paper, and the content ID of the display data in association with each other. ID transmitting means for transmitting the base ID of the electronic base apparatus and the paper ID of the attached electronic paper;
Display target receiving means for receiving the content ID registered in the server device in association with the base ID and paper ID transmitted by the ID transmitting means;
Display control means for displaying on the electronic paper display data stored in the attached electronic paper in association with the content ID received by the display object receiving means;
An electronic underlay device characterized by comprising:

[13]
Electronic paper that is detachably attached to an electronic underlay and stores a plurality of display data,
An underlay detection means for detecting that the electronic underlay has been attached;
When it is detected by the underlay detection means that the electronic underlay is attached, a display target acquisition means for acquiring a display target content ID from the electronic underlay;
Display presence / absence determining means for determining whether or not display data corresponding to the content ID acquired by the display target acquiring means is stored;
Display control means for displaying the display data on the electronic paper when it is determined by the display presence / absence determination means that display data corresponding to the acquired content ID is stored;
Electronic paper characterized by comprising:

[14]
Display data storage means for storing each of the plurality of display data in association with the content ID;
The display presence / absence determination means determines whether or not display data associated with the content ID acquired by the display target acquisition means is stored in the display data storage means,
When the display control unit determines that the display data associated with the acquired content ID is stored in the display data storage unit, the display control unit stores the display data in the electronic paper. To display
[13] The electronic paper as described in [13].

[15]
Electronic paper that is detachably attached to an electronic underlay and stores a plurality of display data,
Display target storage means for storing content IDs respectively corresponding to the plurality of display data in association with the respective base IDs of the plurality of electronic bases;
An underlay detection means for detecting that the electronic underlay has been attached;
An ID acquisition means for acquiring a base ID from the electronic base when it is detected by the base detection means that the electronic base is mounted;
Display presence / absence determining means for determining whether or not a content ID associated with the base ID acquired by the ID acquiring means is stored in the display target storage means;
When it is determined by the display presence / absence determining means that the content ID associated with the acquired base ID is stored by the display target storage means, the display data stored corresponding to the content ID Display control means for displaying on the electronic paper;
Electronic paper characterized by comprising:

[16]
A non-display control means for changing the display state by the display control means to non-display when it is detected by the underlay detection means that the electronic underlay is removed from the state;
[13] or [15], wherein the electronic paper is characterized.

[17]
The non-display control means changes the display state by the display control means to non-display after the elapse of a predetermined time when it is detected by the underlay detection means that the electronic underlay is removed from the state.
[16] The electronic paper as described in [16].

[18]
When it is detected by the underlay detection means that it is attached to the electronic underlay, the display includes a display state determination means for determining whether display data is displayed in advance on the electronic paper,
In accordance with the determination whether display data is displayed in advance by the display state determination means, to control whether to perform display control according to the attached electronic underlay,
[13] or [15], wherein the electronic paper is characterized.

[19]
When it is determined that the display data is displayed in advance by the display state determination unit, the display state of the display data is maintained, and it is determined that the display data is not displayed in advance by the display state determination unit. In case, control of display according to the attached electronic underlay is executed,
[18] The electronic paper as described in [18].

[20]
A display change instruction means for instructing a change of display in response to a user operation when the display state determination means determines that the display data is displayed in advance;
When a display change is instructed by the display change instruction means, the display is controlled according to the attached electronic underlay.
[18] The electronic paper as described in [18].

[21]
A display object saving unit for temporarily storing a content ID of the display data when the display state determining unit determines that the display data is displayed in advance;
When it is detected by the underlay detection means that the electronic underlay is removed from the state, the display object is saved instead of the display data displayed by the display control according to the attached electronic underlay. Re-display control means for re-displaying display data corresponding to the content ID temporarily stored by the means;
[20] The electronic paper as described in [20].

10A ... Electronic paper recording device (single-sided type)
10B ... Electronic paper recording device (double-sided type)
11A ... Electronic paper (single sided type)
11B ... Electronic paper (double-sided type)
12A ... Electronic underlay (single-sided type)
12B ... Electronic underlay (spread type)
DESCRIPTION OF SYMBOLS 14 ... Tablet 17 ... Nonvolatile display device 19 ... Paper control device 20 ... Paper ID memory | storage part 21D, 21D '... Display content memory | storage part 21DA ... Content ID memory | storage part,
21DB ... Display data storage unit 29 ... Underlay ID storage unit 53 ... Electronic paper management server 53W ... Information providing server 54 Electronic paper management table (underlay)
58a ... Information management unit 58b ... Electronic paper management unit 60 ... Communication device 61 ... Communication terminal device 62 ... Electronic paper management table (server)

Claims (14)

An electronic underlay device on which electronic paper is detachably mounted,
When the display data stored in the mounted electronic paper is a display data corresponding to the content ID that is registered in the pre-Me own device, the electronic and the display data when the electronic paper is mounted Display control means for displaying on the paper;
When the display data stored in the attached electronic paper is display data corresponding to a content ID different from the content ID registered in advance in the device, the electronic paper is attached when the electronic paper is attached. Registration means for registering the content ID corresponding to the displayed display data in its own device if the display data corresponding to the different content ID is displayed on the electronic paper;
An electronic underlay device characterized by comprising: An electronic underlay device on which electronic paper is detachably mounted,
When the display data stored in the mounted electronic paper is a display data corresponding to the content ID that is registered in the pre-Me own device, the electronic paper display data when the electronic paper is mounted Display control means for displaying the stored display data on the electronic paper if not displayed on the electronic paper;
An electronic underlay device characterized by comprising: An electronic underlay device on which electronic paper is detachably mounted,
Paper ID corresponding to the mounted electronic paper, when said in association with the content ID corresponding to the display data stored in the electronic paper has been registered in the pre-Me own device, the electronic paper is mounted Display control means for sometimes displaying the display data on the electronic paper;
When the paper ID corresponding to the attached electronic paper is a paper ID different from the paper ID previously registered in the apparatus , display data is displayed when the electronic paper is attached. Registration means for registering the paper ID corresponding to the electronic paper in its own device in association with the content ID corresponding to the display data if displayed on the paper;
An electronic underlay device characterized by comprising: An electronic underlay device on which electronic paper is detachably mounted,
Paper ID corresponding to the mounted electronic paper, when said in association with the content ID corresponding to the display data stored in the electronic paper has been registered in the pre-Me own device, the electronic paper is mounted Display control means for displaying the stored display data on the electronic paper if display data is not displayed on the electronic paper,
An electronic underlay device characterized by comprising: An electronic underlay device on which electronic paper is detachably mounted,
Paper detecting means for detecting that electronic paper storing display data in association with a content ID corresponding to the display data is attached;
When the paper detection unit detects that the electronic paper is mounted, the base ID corresponding to the electronic base, the paper ID corresponding to the electronic paper, and the content ID corresponding to the display data are registered in association with each other. An ID transmitting unit that connects to the server device and transmits a base ID corresponding to the electronic base device and a paper ID corresponding to the attached electronic paper;
Display target receiving means for receiving the content ID registered in the server device in association with the base ID and the paper ID transmitted by the ID transmitting means;
Display control means for displaying on the electronic paper display data stored in the attached electronic paper in association with the content ID received by the display target receiving means;
An electronic underlay device characterized by comprising: Electronic paper that is detachably attached to an electronic underlay and stores a plurality of display data,
An underlay detection means for detecting that the electronic underlay has been attached;
Display object acquisition means for acquiring a content ID corresponding to a display object from the electronic underlay when the underlay detection means detects that the electronic underlay is attached;
Display presence / absence determining means for determining whether or not display data corresponding to the content ID acquired by the display target acquiring means is stored;
Display control means for displaying the display data on the electronic paper when it is determined by the display presence / absence determination means that display data corresponding to the acquired content ID is stored;
Electronic paper characterized by comprising: A display data storage means for storing the plurality of display data in association with the corresponding content IDs;
The display presence / absence determination means determines whether or not display data associated with the content ID acquired by the display target acquisition means is stored in the display data storage means,
When the display control unit determines that the display data associated with the acquired content ID is stored in the display data storage unit, the display control unit stores the display data in the electronic paper. To display
The electronic paper according to claim 6 . Electronic paper that is detachably attached to an electronic underlay and stores a plurality of display data,
Display target storage means for storing content IDs respectively corresponding to the plurality of display data in association with the base ID corresponding to each of the plurality of electronic bases;
An underlay detection means for detecting that the electronic underlay has been attached;
ID acquisition means for acquiring a base ID from the electronic base when it is detected by the base detection means that the electronic base is mounted;
Display presence / absence determining means for determining whether or not a content ID associated with the base ID acquired by the ID acquiring means is stored in the display target storage means;
Display data stored in correspondence with the content ID when it is determined that the content ID associated with the acquired base ID is stored in the display target storage unit by the display presence determination unit Display control means for displaying on the electronic paper;
Electronic paper characterized by comprising: A non-display control means for changing the display state by the display control means to non-display when it is detected by the underlay detection means that the electronic underlay is removed from the state;
The electronic paper according to claim 6 or 8 , wherein The non-display control means changes the display state by the display control means to non-display after the elapse of a predetermined time when it is detected by the underlay detection means that the electronic underlay is removed from the state.
The electronic paper according to claim 9 . When it is detected by the underlay detection means that it is attached to the electronic underlay, the display includes a display state determination means for determining whether display data is displayed in advance on the electronic paper,
Controlling whether or not to execute display control according to the attached electronic underlay according to the determination as to whether or not display data is displayed in advance by the display state determination means;
The electronic paper according to claim 6 or 8 , wherein When it is determined that the display data is displayed in advance by the display state determination unit, the display state of the display data is maintained, and it is determined that the display data is not displayed in advance by the display state determination unit. In case, control of display according to the attached electronic underlay is executed,
The electronic paper according to claim 11 . A display change instruction means for instructing a change of display in response to a user operation when the display state determination means determines that the display data is displayed in advance;
When a display change is instructed by the display change instruction means, the display control according to the attached electronic underlay is executed.
The electronic paper according to claim 11 . A display target saving unit that temporarily stores a content ID corresponding to the display data when the display state determination unit determines that the display data is displayed in advance;
When it is detected by the underlay detection means that the electronic underlay is removed from the state, the display object is saved instead of the display data displayed by the display control according to the attached electronic underlay. Re-display control means for re-displaying display data corresponding to the content ID temporarily stored by the means;
14. The electronic paper according to claim 13 , further comprising:

Images