JP6474853B2 - INPUT / OUTPUT DEVICE, CONTROL METHOD, AND ELECTRONIC DEVICE - Google Patents

Description

  The present invention relates to a technique for controlling a response to a touch operation of an input / output device in which a detection layer for detecting the touch operation is incorporated.

  A flat panel display (FPD) may include a touch sensor for inputting with a finger and a digitizer for inputting with an electronic pen (stylus pen). In addition, FPD includes a so-called flexible display that is formed of a flexible film and can be displayed in a folded or folded state. Patent Document 1 discloses a touch screen including a capacitive touch panel, a display panel, and an electromagnetic induction digitizer. Patent Document 2 discloses a flexible display incorporating a sensor array composed of an electromagnetic induction type digitizer or a capacitance type touch input detection device. Patent Document 3 describes an electromagnetic induction type digitizer operated with an electronic pen.

US Patent Application Publication No. 2016/0154528 US Patent Application Publication No. 2008/015171 Japanese Patent No. 5944362

  The touch screen has a structure in which a touch sensor that performs a touch operation with a finger and an FPD are stacked. A touch screen equipped with an electromagnetic induction type digitizer usually has a property of transmitting an electromagnetic wave radiated by an electronic pen (electromagnetic wave transmission property). At this time, the digitizer mounted on the rigid touch screen can detect only the coordinates of the position designated by the electronic pen. However, a digitizer mounted on a flexible touch screen that can be folded and rolled up may detect not only the coordinates of the position indicated by the electronic pen but also the coordinates of a position away from the indicated position.

  In addition, studies are being made on electronic devices in which a plurality of film-like touch screens each equipped with an electromagnetic induction digitizer are stacked and different images are displayed on each touch screen like a book. At this time, the digitizer mounted on the lower touch screen simultaneously detects the coordinates when the uppermost touch screen is instructed by the electronic pen due to the electromagnetic wave transparency of the touch screen. In such a case, it is required that the user recognizes coordinates that are not intended to be instructed and performs appropriate processing.

  An object of the present invention is to appropriately control a response to a touch operation of an input / output device in which a detection layer for detecting the touch operation is incorporated. A further object of the present invention is to appropriately control a response to a touch operation of an input / output device in which an electromagnetic induction digitizer layer that performs a touch operation with an electronic pen is incorporated.

  The input / output device according to the first aspect of the present invention includes a display block and a control unit. The display block includes a first cover layer that provides a touch operation surface, a first detection layer that can detect a touch operation on the first cover layer, and a second detection layer that detects the touch operation. And a display layer for displaying a positive image on the first cover layer. The control unit determines the validity of the coordinates detected by the second detection layer based on the output of the first detection layer when a touch operation is performed on the first cover layer.

  The display block may be either a flexible type that can be bent or a rigid type that has a predetermined rigidity. The second detection layer may be an electromagnetic induction digitizer layer that is touch-operated with an electronic pen, and the first detection layer may be a capacitive touch sensor layer that is touch-operated with a finger. The display block may be formed of a material having a high light transmittance, and the display device may display a reverse image on the second cover layer disposed on the surface facing the first cover layer.

  In the input / output device according to the second aspect of the present invention, the display block includes a first cover layer that provides a touch operation surface, a second cover layer that provides a touch operation surface, and a first cover layer. A display layer that displays a normal image on one of the second cover layers and an inverted image on the other, a first touch sensor layer capable of detecting a touch operation on the first cover layer, A second touch sensor layer capable of detecting a touch operation on the second cover layer; and a digitizer layer detecting a touch operation on the first cover layer and the second cover layer. The control unit detects the coordinates detected by the digitizer layer based on the output of the first touch sensor layer or the second touch sensor layer when a touch operation is performed on the first cover layer or the second cover layer. Determine effectiveness.

  An input / output device according to a third aspect of the present invention includes a cover layer in which each display block provides a touch operation surface, a first detection layer capable of detecting a touch operation on the cover layer, and a touch operation. It includes a second detection layer for detection and a display layer for displaying an image on the cover layer, and is laminated during a touch operation. The control unit includes a second detection layer included in each display block based on coordinates detected by the first detection layer included in each display block when a touch operation is performed on the cover layer included in the display block stacked on the upper layer. Determine the validity of the coordinates detected by.

  According to the present invention, the response to the touch operation of the input / output device in which the detection layer for detecting the touch operation is incorporated can be appropriately controlled. Furthermore, according to the present invention, the response to the touch operation of the input / output device in which the electromagnetic induction type digitizer layer that performs the touch operation with the electronic pen can be appropriately controlled.

It is a functional block diagram for demonstrating the structure of the input / output device 10 concerning this Embodiment. It is the top view and exploded perspective view of the input / output device 10 typically shown. It is a functional block diagram for demonstrating the structure of the other input / output device 20 concerning this Embodiment. 4 is a flowchart for explaining an operation procedure when a touch operation is performed on the input / output devices 10 and 20 with the electronic pen 15. 7 is a diagram for explaining real coordinates and ghost coordinates detected by the digitizer layer 207 when a touch operation is performed with the electronic pen 15 on the flexible display blocks 200 and 250 that display a normal image. FIG. 6 is a diagram for explaining real coordinates and ghost coordinates detected by the digitizer layer 207 when a touch operation is performed with the electronic pen 15 on a flexible display block 200 that displays a reverse image. FIG. It is a figure for demonstrating the real coordinate which the digitizer layer 207 detects when a touch operation is carried out with the electronic pen 15 to the rigid type or the flexible type display blocks 200 and 250 which are flat form at the time of a touch operation. It is a figure for demonstrating the method of distinguishing a real coordinate and a ghost coordinate. It is a functional block diagram for demonstrating the structure of the other input / output device 30 concerning this Embodiment. It is a side view for demonstrating the other input / output device 40 concerning this Embodiment. 3 is a functional block diagram for explaining a configuration of an input / output device 40. FIG. FIG. 6 is a diagram for explaining a state of display blocks 500a to 500e when a touch operation is performed on the input / output device 40 with the electronic pen 15. 6 is a flowchart for explaining an operation procedure when a touch operation is performed on the input / output device with the electronic pen.

[I / O device with visual transparency with fixed image orientation]
FIG. 1 is a functional block diagram for explaining a configuration of an input / output device 10 according to the present embodiment. FIG. 2 is a plan view and an exploded perspective view of the input / output device 10 schematically shown. In the present specification and drawings, the same reference numerals are assigned to the hardware elements and software elements that may be treated as the same or equivalent for understanding the present invention, and the description will be omitted or simplified.

  The input / output device 10 includes a control block 100 and a display block 200. The display block 200 has a structure in which a cover layer 201, a touch sensor layer 203, a display layer 205, a digitizer layer 207, and a cover layer 209 as main components are sequentially stacked. The display block 200 is formed of a material having a high light transmittance and has visual transparency. Here, the visual transparency refers to the property that when the display block 200 does not display an image, the display block 200 is transparent and the background scenery can be seen. The display block 200 displays an image displayed on the display layer 205 on the cover layer 201 as a normal image, and simultaneously displays an inverted image on which the normal image is turned over on the cover layer 209.

  The display block 200 may be a rigid type having a rigidity sufficient to maintain a flat plate shape. The display block 200 may also be a flexible type that can be displayed in a folded or rolled state using a film-like plastic material as a substrate material. Here, the flexible type means that the display block 200 is flexible enough to be bent and rounded as described in FIGS.

  The cover layer 201 that displays a normal image constitutes the outline of one surface of the display block 200. Further, the cover layer 201 provides a touch operation surface for performing a touch operation on the input / output device 10. Here, the touch operation corresponds to an action of bringing the finger 13 or the electronic pen 15 into contact with or approaching the cover layer 201 and inputting to the input / output device 10. The touch operation may be accompanied by pressing against the cover layer 201 depending on the type of the touch sensor layer 203.

  In one example, the touch sensor layer 203 includes an electrode pattern for detecting the coordinates of the finger 13 that has touched the cover layer 201 with a capacitance method. The touch sensor layer 203 may detect coordinates based on either the self-capacitance type or the mutual capacitance type principle. The display layer 205 includes a pixel matrix for constituting a self-luminous display such as an organic EL display and a plasma display, or a non-self-luminous display such as a liquid crystal display. When a liquid crystal display is employed, the display layer 205 includes a light guide plate for guiding light from a backlight (not shown) disposed in the control block 100. The pixel matrix includes a wiring pattern in which gate lines and drain lines are densely arranged and pixels.

  The digitizer layer 207 employs an electromagnetic induction type digitizer panel that performs a touch operation with the electronic pen 15. The digitizer layer 207 includes a coil array in which a plurality of detection coils are arranged at a predetermined pitch in the X direction and the Y direction, respectively. The electronic pen 15 is an active type that radiates electromagnetic waves as an initiator by providing a built-in battery, and a passive that radiates electromagnetic waves using the energy of electromagnetic waves radiated by a coil array in which a high-frequency current flows by providing a resonance circuit inside. -Any of the types may be used.

  The cover layer 209 constitutes the contour of the other surface of the display block 200. The cover layer 209 provides a touch operation surface, and a touch operation is possible in the same manner as the cover layer 201. The control block 100 includes a touch sensor controller 103 connected to the touch sensor layer 203, a display controller 105 connected to the display layer 205, and a digitizer controller 107 connected to the digitizer layer 207. The control block 100 further includes an input control unit 111 and an interface 113.

  The control block 100 can be composed of hardware elements such as a processor and a memory and software elements such as a device driver and firmware. The touch sensor controller 103 applies a voltage to the electrodes of the touch sensor layer 203 to form an electrostatic field in the vicinity of the cover layer 201. The touch sensor controller 103 detects a change in electric field or capacitance due to a touch operation of the finger 13 on the cover layer 201 and outputs coordinates. The touch sensor controller 103 can detect a change in electric field or capacitance due to a touch operation of the electronic pen 15 on the cover layer 201 and output coordinates.

  The touch sensor layer 203 to which a voltage is applied is shielded by the pixel matrix of the display layer 205 and does not form an electrostatic field in the vicinity of the cover layer 209. Therefore, the touch sensor controller 103 does not detect the coordinates of the touch operation with the finger 13 and the electronic pen 15 on the cover layer 209. The display controller 105 drives the pixel matrix of the display layer 205 with the image data received from the host device 11 to display the normal image on the cover layer 201 and displays the inverted image on the cover layer 209.

  Since the display block 200 is transmissive to electromagnetic waves, the electromagnetic waves emitted from the electronic pen 15 pass through the pixel matrix of the display layer 205 and the coil array of the digitizer layer 207 and are emitted from the cover layer 209. The digitizer controller 107 outputs the coordinates of the electronic pen 15 that has made a touch operation on the cover layer 201 with a sense current passed through the coil array of the digitizer layer 207. The digitizer controller 107 also detects the coordinates of the touch operation on the cover layer 209 with the electronic pen 15. The digitizer controller 107 outputs a signal corresponding to the absolute coordinates set in the display block 200.

  The input control unit 111 can recognize the mutual relationship between the coordinates received from the touch sensor controller 103 and the digitizer controller 107. The input control unit 111 transfers the image data received from the host device 11 through the interface 111 to the display controller 105. The input control unit 111 sends the coordinates received from the touch sensor controller 103 and the digitizer controller 107 to the host device 11 through the interface 113. At this time, the input control unit 111 determines the validity of the coordinates received from the digitizer controller 107 according to the procedure of FIG.

  The interface 113 performs processing for data communication with the host device 11 in a wired or wireless manner. The input / output device 10 operates with power supplied from a battery (not shown) or the host device 11. The host device 11 corresponds to an information processing device such as a computer, a game machine, or a smartphone, and generates image data to be displayed on the input / output device 10. The host device 11 can operate with the coordinates received from the input / output device 10. The host device 11 can be incorporated in the control block 100. In this case, the input / output device 10 constitutes an information device or an electronic device having a coherent function.

[I / O device without visual transparency]
FIG. 3 is a functional block diagram for explaining another input / output device 20 according to the present embodiment. The input / output device 20 differs only in that an opaque cover layer 210 is provided on the display block 250 in place of the cover layer 209 of the input / output device 10 of FIG. Therefore, the display block 250 displays a normal image on the cover layer 201, but does not display a reverse image on the cover layer 210. The display block 250 may be either a flexible type or a rigid type.

[Operation Procedure of Input / Output Devices 10 and 20]
FIG. 4 is a flowchart for explaining an operation procedure when a touch operation is performed with the electronic pen 15 on the input / output devices 10 and 20 displaying images. In block 401, the touch operation is performed on the input / output devices 10 and 20 with the electronic pen 15. When the display blocks 200 and 250 are of the flexible type, as shown in FIG. 5A, the position 305 of the cover layer 201 that displays the normal image in the folded state, as shown in FIG. A touch operation may be performed on the position 309 of the cover layer 201 that displays a normal image in a rounded state.

  The electromagnetic waves emitted from the electronic pen 15 are incident on the position 305 of the cover layer 201 when the display blocks 200 and 250 are folded as shown in FIG. 5A, and when the display blocks 200 and 250 are rolled as shown in FIG. The light enters the position 309 of the layer 201. The incident electromagnetic waves are transmitted through the display blocks 200 and 250 and again enter the position 307 of the cover layers 209 and 210 in FIG. 5A or the position 311 of the cover layer 201 in FIG. 5B. As a result, the digitizer controller 107 outputs the coordinates of the positions 305 and 307 in response to a touch operation on the position 305 of the cover layer 201 in FIG.

  Further, the digitizer controller 107 outputs the coordinates of the positions 309 and 311 in response to a touch operation on the position 309 of the cover layer 201 in FIG. Here, among the coordinates output by the digitizer controller 107, the coordinates of the positions 305 and 309 where the touch operation is physically performed are referred to as real coordinates, and the positions where the electromagnetic waves enter the display blocks 200 and 250 and then enter again. The coordinates 307 and 311 are referred to as ghost coordinates.

  When the display block 200 that can also display a reverse image is a flexible type, the position 313 of the cover layer 209 that displays the reverse image in a folded state as shown in FIG. 6A or FIG. 6B In some cases, a touch operation may be performed on the position 317 of the cover layer 209 that displays the reverse image in a rounded state as shown in FIG. When the display block 200 is folded as shown in FIG. 6A, the electromagnetic wave radiated from the electronic pen 15 enters the position 313 of the cover layer 209, and when the display block 200 is rolled as shown in FIG. 5B, the cover layer 209 is incident. Is incident on position 317. The incident electromagnetic wave passes through the display block 200 and enters the display block 200 from the position 315 of the cover layer 201 or the position 319 of the cover layer 209 again. As a result, the digitizer controller 107 outputs the coordinates of the positions 313 and 315 in response to a touch operation on the position 313 of the cover layer 209.

  Also, the digitizer controller 107 outputs the coordinates of the positions 317 and 319 in response to a touch operation on the position 317 of the cover layer 209. The coordinates corresponding to the positions 313 and 317 correspond to real coordinates, and the coordinates corresponding to the positions 315 and 319 correspond to ghost coordinates. Note that even if a touch operation is performed on the display block 250 (FIG. 3) including the opaque cover layer 210, it can be processed in the same procedure as described below.

  When the display blocks 200 and 250 are a rigid type or a flexible type that is flat when touched, the touch operation is performed on the cover layer 201 that displays a normal image as shown in FIG. In response, the digitizer controller 107 does not output ghost coordinates, but outputs only the real coordinates of the position 321. When the display block 200 is a rigid type or a flexible type that is flat when touched, the display block 200 also responds to a touch operation on the cover layer 209 that displays a reverse image as shown in FIG. Thus, the digitizer controller 107 outputs only the real coordinates of the position 323 without outputting the ghost coordinates.

  In block 403, the digitizer controller 107 outputs one or a plurality of coordinates to the input control unit 111 in accordance with the various display blocks 200 and 250 shown in FIGS. In block 405, the input control unit 111 determines whether coordinates are received from the touch sensor controller 103 according to the output of the digitizer controller 107. When the coordinates are received, the process proceeds to block 407, and when the coordinates are not received, the process proceeds to block 451. Transition to block 451 is a touch operation on the cover layer 209 where the coordinates cannot be detected by the touch sensor layer 203 in the display block 200 that also displays a reverse image as shown in FIGS. 6 and 7B. This corresponds to the case where

  In block 451, the input control unit 111 determines whether the coordinates received from the digitizer controller 107 include ghost coordinates. The input control unit 111 determines that the number of coordinates received from the digitizer controller 111 includes ghost coordinates when there are a plurality of coordinates such as the coordinates of the positions 313 and 315 or the coordinates of the positions 317 and 319 in FIG. Then, the process proceeds to block 455, and if there is one such as the coordinates of position 323 in FIG. 7B, it is determined that the ghost coordinates are not included, or the coordinates are determined to be real coordinates, and the process proceeds to block 453. To do.

  In block 453, the input control unit 111 determines that the coordinates of the position 323 shown in FIG. 7B received from the digitizer controller 107 are valid and outputs them to the host device 11. At this time, the coordinates of the position 323 of the cover layer 209 for displaying the reverse image are valid, but since the images do not overlap as shown in FIG. It is convenient to enable the operation.

  However, in the touch operation on the cover layer 209 that displays the reverse image as shown in FIG. 6, the normal image and the reverse image overlap each other, unlike the touch operation shown in FIG. In this case, there is a possibility that the touch operation cannot be performed accurately. In block 455, the input control unit 111 determines that the coordinates 313, 315 or the coordinates 317, 319 of all positions including the real coordinates and the ghost coordinates received from the digitizer controller 107 are invalid and does not output them to the host device 11. . Since the real coordinates 313 and 317 are also invalidated at this time, the user may be confused by not having any response to the touch operation of the electronic pen 15.

  In block 457, the input control unit 111 sends image data for displaying a message indicating that the back surface touch operation has been performed to the display controller 105. Since the image of the message is displayed on the cover layer 209 that displays the reverse image, the input control unit 111 sends the image data to be displayed by reversing the message so that the cover layer 209 displays the normal image.

  Returning to block 405, the touch sensor layer 203 detects the coordinates and shifts to block 407 because the touch sensor layer 203 is displayed in the display blocks 200 and 250 as shown in FIGS. 5 and 7A. Corresponds to a case where a touch operation is performed with the electronic pen 15 on the cover layer 201 capable of detecting coordinates. In block 407, the input control unit 111 determines whether or not ghost coordinates are detected from the number of coordinates in the same procedure as in block 451.

  If it is determined that the number of detected coordinates is one and no ghost coordinates are generated as shown in FIG. 7A, the process proceeds to block 453, and there are a plurality of coordinates as shown in FIG. If it is determined that the error has occurred, the process proceeds to block 409. In block 409, the input control unit 111 compares the coordinates received from the touch sensor controller 103 with the coordinates received from the digitizer controller 107.

  The state at this time is shown in FIG. FIG. 8 shows a state where the input control unit 111 associates the coordinates output by the digitizer controller 107 in the XY coordinate system of the display block 200 with the coordinate groups output by the touch sensor controller 103. FIG. 8A schematically shows the coordinates 305 a and 307 a of the positions 305 and 307 output from the digitizer controller 107 and the coordinate group 351 output from the touch sensor controller 103. FIG. 8B schematically shows the coordinates 309 a and 311 a of the positions 309 and 311 output by the digitizer controller 107 and the coordinate group 353 output by the touch sensor controller 103.

  The coordinate groups 351 and 353 correspond to the outline of the electronic pen 15 that is close to the cover layer 201 in order to perform a touch operation, and have a wide area. At this time, the signal level indicating each coordinate may be lower than the signal level corresponding to the touch operation with the finger 13. When the housing and the pen tip of the electronic pen 15 are made of metal or depending on the shape and operation method of the electronic pen 15, the coordinates 305a and 309a may be included in the coordinate groups 351 and 353, respectively.

  The input control unit 111 calculates the distance between the coordinate group 351 and the coordinates 305a and 307a, respectively. At this time, the position of the coordinate group 351 can be represented by the coordinates of the center of gravity as an example. The distance between the coordinate group 353 and the coordinates 309a and 311a can be similarly calculated. In one example, the input control unit 111 determines one coordinate 305a, 309a closest to the coordinate group 351, 353 as a real coordinate, and determines all other coordinates 307a, 311a as ghost coordinates. There may be a plurality of ghost coordinates depending on the state of bending or rounding. The input control unit 111 may determine that one coordinate is a real coordinate on the condition that the distance to the coordinate groups 351 and 353 is less than a predetermined value.

  In the touch operation as shown in FIG. 5, since the cover layer 201 displays a normal image, the touch operation can be accurately performed even with the display block 200 having visual transparency. Even if it is, it is more convenient to enable it. In block 411, the input control unit 111 determines that the coordinates 305 a and 311 a are valid and outputs them to the host apparatus 11. In block 413, the input control unit 111 determines that the coordinates 307 a and 311 a are invalid and does not output them to the host apparatus 11.

  In the present embodiment, the touch sensor layer 203 detects the touch operation of the electronic pen 15 on the cover layer 201 that displays the normal image, and detects the touch operation of the electronic pen 15 on the cover layer 209 that displays the reverse image. The real coordinates and the ghost coordinates are distinguished by not using them. Therefore, the detection principle of the touch sensor layer 203 can exhibit the same function as the capacitance type in this respect, and other methods such as a resistive film type, an ultrasonic surface acoustic wave method, and an optical method. Can be adopted. Further, the order of stacking the elements of the display block 200 is not necessarily limited to the example shown in FIG. 1. For example, the order of the display layer 205 and the digitizer layer 207 may be switched.

  The operation procedure shown in FIG. 4 shows an example of the present invention and does not limit the present invention. The scope of the present invention is as set forth in the claims made based on the description of the specification. For example, when the procedure of block 451 is omitted and the touch sensor layer 203 does not detect the coordinates, all the detected coordinates may be invalidated even when no ghost coordinates are generated. Further, the procedure of block 457 can be omitted.

[Input / output device with image reversal function]
FIG. 9 is a functional block diagram for explaining a configuration of another input / output device 30 according to the present embodiment. The input / output device 30 is different from the input / output device 10 in that the display block 260 includes a touch sensor layer 212 connected to the touch sensor controller 103 between the digitizer layer 207 and the cover layer 209, and control. The block 160 includes only the operation buttons 261 a and 261 b connected to the input control unit 111 and has a function of inverting the image. The display block 260 may be either a rigid type or a flexible type.

  The operation button 261a is disposed on the surface of the control block 100 on the cover layer 201 side, and the operation button 261b is disposed on the surface of the control block 100 on the cover layer 209 side so that the user can operate. Next, an operation procedure of the input control unit 111 installed in the input / output device 30 will be described. The operation buttons 261a and 261b are used when the user switches the cover layer for displaying the normal image. When the user operates the operation buttons 261a and 261b existing at the facing positions, the input control unit 111 inverts the image data received from the host device 11 as necessary so that a normal image is displayed on the user side. To the display controller 105.

  Further, the input control unit 111 uses the touch sensor layer 203 or the touch sensor layer 212 immediately below the cover layer 201 or the cover layer 209 that displays the reverse image, and the input control unit 111 displays the procedure according to the procedure of FIG. As in the case of the block 200, it can be determined whether the input by the electronic pen 15 is an operation for the cover layer 201 or an operation for the cover layer 209. Instead of the operation buttons 261a and 261b, a touch sensor or a human sensor may be provided to determine the cover layer 201 or 209 where the user exists, or an acceleration sensor may be provided to always cover the cover layer 201 that always exists on the upper side. A normal image may be displayed at 209.

[Book type I / O device]
FIG. 10 is a side view for explaining another input / output device 40 according to the present embodiment. The input / output device 40 is configured such that a plurality of film-like display blocks 500 a to 500 e can rotate around the control block 170. The user can browse the screens displayed by the display blocks 500a to 500e by turning the display blocks 500a to 500e like a book page. The number of display blocks 500a to 500e is not particularly limited as long as it is plural. Such an input / output device 40 is referred to as a book type.

  FIG. 11 is a functional block diagram for explaining the configuration of the book-type input / output device 40. The display blocks 500a to 500e may be either a rigid type or a flexible type. As an example, the display block 250 including the opaque cover layer 210 shown in FIG. 3 can be adopted. In addition, when the display block 200 (FIG. 1) or the display block 260 (FIG. 9) having visual transparency is adopted, a layered state detection mechanism using a proximity sensor, a mechanical switch, or the like is provided to display a lower layer display. The block may display the background image of the upper display block.

  The control block 170 includes a plurality of control blocks 100a to 100e having a function corresponding to the configuration of the display blocks 500a to 500e and a page control unit 151. The page control unit 151 divides the image data received from the host device 11 into pages so that the image data can be displayed on the plurality of display blocks 500a to 500e, and sends the page data to the control blocks 100a to 100e. For example, when the display blocks 500a to 500e are display blocks 200 and 250 that display a normal image on the cover layer 201, the page control unit 151 divides the image data received from the host device 11 into five pages and sequentially outputs one page. Each of them is sent to the control blocks 100a to 100e.

  Alternatively, when the display blocks 500a to 500e are display blocks 260 that display a normal image on the cover layer 201 or the cover layer 209, the page control unit 151 divides the image data received from the host device 11 into 10 pages. The odd pages are sequentially sent to the control blocks 100a to 100e. Furthermore, when the cover layer 201 of an arbitrary display block facing up faces down, the image data of the even page following the preceding odd page is inverted and sent to the control blocks 100a to 100e. By doing so, the user can view the normal images displayed on the cover layer 201 on the right side and displayed on the cover layer 209 on the left side in the order of the pages.

  FIG. 12 is a diagram for explaining the appearance of the display blocks 500a to 500e when a touch operation is performed on the input / output device 40 with the electronic pen 15. FIG. FIG. 13 is a flowchart for explaining the operation procedure of the control block 170. Details of the operation procedure of each of the control blocks 100a to 100e can be understood with reference to the flowchart of FIG. FIG. 12A shows a state in which five display blocks 500a to 500e are sequentially stacked in a flat plate state. It is assumed that the display blocks 500a to 500e are configured by any one of the display blocks 200, 250, and 260. Each of the upper cover layers 201 of the display blocks 500a to 500e displays a normal image.

  In block 601, a touch operation is performed on the uppermost display block 500a. In block 603, the digitizer controller 107 of each of the control blocks 100a to 100e detects one coordinate. However, when the display blocks 500a to 500e are stacked, the touch sensor controller 103 corresponding to the display block 500a stacked at the highest level detects the coordinates, but the display blocks 500b to 500e below it detect the coordinates. The corresponding touch sensor controller 103 does not detect coordinates.

  When the input control unit 111 of each of the control blocks 100a to 100e receives coordinates from the digitizer controller 105, the input control unit 111 determines whether or not the touch sensor layer 203 has detected the coordinates in block 605. The input control unit 111 of the control block 100a that has detected the coordinates determines that the coordinates received from the digitizer controller 107 in block 607 are valid and outputs them. In addition, the input control units 111 of the control blocks 100b to 100e that do not detect coordinates determine that the coordinates received from the digitizing controller 107 in block 651 are invalid and do not output them.

  FIG. 12B shows a state in which the display blocks 500a and 500b are stacked on the left side. At this time, if the display block 260 capable of reversing the direction of the image is employed, a normal image is displayed on the cover layer 209 of the display block 500b. The touch operation on the cover layer 209 of the display block 500b can be processed by the touch sensor layer 212 of the control blocks 100a and 100b in the same procedure as in FIG.

  Although the present invention has been described with the specific embodiments shown in the drawings, the present invention is not limited to the embodiments shown in the drawings, and is known so far as long as the effects of the present invention are achieved. It goes without saying that any configuration can be adopted.

10, 20, 30, 40 Input / output device 15 Electronic pen 100, 160, 170, 100a to 100e Control block 200, 250, 260, 500a to 500e Display block 201, 209, 210 Cover layer 203, 212 Touch sensor layer 205 Display layer 207 Digitizer layer

Claims (16)

A first cover layer forming one contour, a second cover layer forming the other contour, a touch sensor layer capable of detecting a touch operation with an electronic pen on the first cover layer, and the electronic A display block having electromagnetic wave transparency and flexibility, including an electromagnetic induction digitizer layer for detecting electromagnetic waves emitted by the pen and a display layer for displaying a positive image on the first cover layer;
A touch sensor controller that outputs coordinates detected by the touch sensor layer ;
In accordance with the touch operation on the first cover layer, electromagnetic waves that have been transmitted through the first cover layer and incident after being transmitted through the first cover layer and the second cover layer A digitizer controller for outputting a plurality of coordinates detected by the digitizer layer from:
An input / output device comprising: a control unit that determines the validity of a plurality of coordinates output by the digitizer controller based on an output of the touch sensor controller .   The input / output device according to claim 1, wherein the touch sensor layer is a capacitive sensor capable of detecting a touch operation with a finger.   The input / output device according to claim 1, wherein the touch sensor layer does not detect the touch operation on the second cover layer.   The input / output device according to claim 1, wherein the display block can be bent and rounded.   When the touch sensor layer detects coordinates and the digitizer layer detects a plurality of coordinates, the control unit determines a distance between the coordinates detected by the touch sensor layer and the coordinates detected by the digitizer layer. The input / output device according to claim 1, wherein the validity is determined by calculation. The input / output device according to claim 5 , wherein the control unit determines that a coordinate existing at a position closest to a coordinate detected by the touch sensor layer is valid and determines other coordinates as invalid.   The input / output device according to claim 1, wherein the control unit determines that one coordinate detected by the digitizer layer is valid when the touch sensor layer does not detect the coordinate.   The input / output device according to claim 1, wherein the display block is formed of a material having a high light transmittance, and the display layer displays a reverse image on the second cover layer. The control unit displays information indicating that the plurality of coordinates detected by the digitizer layer are invalid when the touch sensor layer does not detect coordinates as a normal image on the second cover layer. The input / output device according to claim 8 , wherein the input / output device outputs image data for inverting and displaying the information on the display layer. An electronic apparatus comprising the input / output device according to claim 1 . A first cover layer forming one contour, a touch sensor layer capable of detecting a touch operation with the electronic pen on the first cover layer, a pixel matrix, and an electromagnetic wave for detecting an electromagnetic wave radiated from the electronic pen A method of controlling the operation of an electromagnetic wave transmissive and flexible input / output device including an inductive digitizer layer and a second cover layer forming the other contour,
The electromagnetic wave incident through the first cover layer in response to a touch operation on the first cover layer and the electromagnetic wave incident after passing through the first cover layer and the second cover layer A digitizer layer detecting a plurality of coordinates;
Determining whether or not coordinates are detected by the touch sensor layer according to the touch operation;
The coordinates corresponding to the position of the touch operation and the coordinates corresponding to the position different from the position of the touch operation are distinguished from each other for the plurality of coordinates detected by the digitizer layer according to whether or not the coordinates are detected by the touch sensor layer. And a method comprising: The method of claim 11 , wherein the distinguishing includes determining that the coordinates detected by the digitizer layer are valid when the touch sensor layer detects coordinates. The method according to claim 12 , wherein the step of distinguishing includes determining that the coordinates are valid when the number of coordinates detected by the digitizer layer is one. The distinguishing step is claim comprising the step of determining the effective coordinates existing at the nearest position with respect to coordinates the number of coordinates where the digitizer layer is detected is detected by the touch sensor layer when the plurality 12. The method according to 12 . The method of claim 11 , wherein the step of determining includes determining that all coordinates detected by the digitizer layer are invalid when the touch sensor layer does not detect coordinates. 12. The method of claim 11 , wherein the step of distinguishing comprises determining that one coordinate detected by the digitizer layer is valid when the touch sensor layer does not detect a coordinate.

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