JP6549776B2 - Input display - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an input display device, and more particularly to an input display device having a touch panel and capable of handwriting input with a pen.

  BACKGROUND There is known an input display device in which a display device such as a liquid crystal panel and a touch panel capable of detecting an input by a touch operation are integrated. The input display device integrated with the touch panel is used as an electronic blackboard in, for example, a classroom or an office. For such an input display device, the user often performs handwriting input using a pen.

  An input display device capable of handwriting input with a pen has a low price and has been used for applications other than the above, for example, face-to-face business negotiations. In face-to-face business negotiations, the input display device is used while being placed on a table. The conventional input display device is designed on the premise of handwritten input from the front of the device, and the clerk inputs handwritten input so that the customer can see in the face-to-face business talk where the customer and the clerk are seated facing in different directions. For example, it is necessary to do as follows. That is, it is necessary to temporarily change the direction of the input display device, which has been fronted by the customer side, so that the clerk becomes frontal, and then input by handwriting, and then return the direction of the input display device so that the customer side becomes frontal again. . If the direction of the input display device can not be changed, it is necessary for the store clerk to move to the customer side which is the front side of the input display device for handwriting input.

  According to Patent Document 1, when a plurality of handwriting input persons having different seating positions exchange information by handwritten characters alternately using the same touch panel, the display direction of the handwritten image is displayed based on the writing direction of the handwritten character input. An input display device is disclosed that changes the display direction.

JP 2011-28697 A

  However, the input display device of Patent Document 1 can not display handwritten images from all directions directed to the predetermined direction on the input display device. For example, when vertical writing is input from the side, the handwritten image can not be displayed in an orientation that is easy to see from the front. Also, when only one character is handwritten input or a figure is handwritten input, that is, when other than text is handwritten input, the input display device of Patent Document 1 can not correctly determine the writing direction, so the handwritten image is specified. It may not be possible to display in the direction of.

  The present invention has been made in view of the above-described circumstances, and it is easy to see from a predetermined direction regardless of input contents or horizontal input / vertical input regardless of input direction from any direction. It is an object of the present invention to provide an input display device that displays a handwritten image based on handwriting input in an orientation.

  In order to solve the above-mentioned subject, the 1st technical means of the present invention has an input provided with a display part which has a display surface which displays information, and a touch panel which detects handwriting input by a user's pen to the display surface. A display device, comprising: an angle determination unit that determines an angle of the pen with respect to the display surface; a rotation angle storage unit that stores in advance a rotation angle corresponding to the angle of the pen; and determining an end of handwriting input by the pen A handwriting input end determination unit for displaying the handwriting image without rotating so that the locus of the pen input by handwriting is drawn on the display surface during handwriting input by the pen; After completion of the handwriting input according to the second embodiment, the handwritten image based on the handwriting input is rotated and displayed by the rotation angle corresponding to the angle of the pen.

  A second technical means of the present invention, in the first technical means, includes a tilt information receiving unit for receiving tilt information of the pen from the pen, and the angle determination unit is based on the tilt information of the pen. And determining the angle of the pen with respect to the display surface.

  A third technical means of the present invention is characterized in that, in the second technical means, the tilt information is information based on an output of an acceleration sensor provided on the pen.

  Further, according to a fourth technical means of the present invention, in the first or second technical means, the tilt information is directional information of a pen indicating which direction the axial direction of the pen faces. The input display device includes a direction information acquisition unit that acquires direction information of the input display device indicating a direction in which a predetermined surface of the input display device is facing, and the angle determination unit includes direction information of the pen and And determining the angle of the pen with respect to the display surface based on the direction information of the input display device.

  A fifth technical means of the present invention is the fourth technical means, wherein the directional information of the pen is information based on the output of the geomagnetic sensor provided to the pen, and the input display device comprises a geomagnetic sensor The direction information acquisition unit acquires direction information of the input display device based on an output of the geomagnetic sensor of the input display device.

  A sixth technical means of the present invention is the first technical means according to any one of the first to fifth aspects, further comprising: a determination unit that determines whether the handwriting input is by the right hand or the handwriting input by the left hand. The handwriting input is characterized in that the rotation angle of the handwritten image displayed after the completion of the handwriting input is made different.

  Further, a seventh technical means of the present invention is provided with a display unit having a display surface for displaying information, and a touch panel for detecting handwriting input by a user's pen on the display surface, corresponding to the identification information of the pen The pen includes a rotation angle storage unit that stores a rotation angle, an identification information acquisition unit that acquires identification information of the pen from the pen, and a handwriting input end determination unit that determines the end of handwriting input by the pen. While the handwriting input is being performed, the handwritten image is displayed without being rotated so that the locus of the pen input in handwriting is drawn on the display surface, and after the handwriting input by the pen is completed, the identification acquired from the pen It is characterized in that the handwritten image based on the handwriting input is rotated and displayed by the rotation angle corresponding to the information.

  The eighth technical means of the present invention is the technical means according to any one of the first to seventh aspects, wherein the handwriting input end determination unit outputs from the touch panel whether or not the user has removed the pen from the input display device. It is characterized in that it is determined that the handwriting input has ended when a predetermined time has elapsed while the user has removed the pen from the input display device.

  In a ninth technical means of the present invention according to any one of the first to eighth technical means, when the handwritten image is rotated and displayed, the rotated handwritten image extends beyond the display surface. It is characterized in that the handwritten image is reduced and displayed.

  According to the input display device of the present invention, the handwriting image based on the handwriting input in an orientation that can be easily seen from the predetermined direction regardless of the input content or the horizontal writing input / vertical writing input, regardless of the input content from any direction Can be displayed.

It is a block diagram for demonstrating an example of the input display apparatus of Example 1 of this invention, and the pen used for the handwriting input with respect to this input display apparatus. It is a schematic diagram of the pen of FIG. It is a figure explaining the information memorize | stored in the corresponding | compatible display rotation angle memory | storage part of FIG. It is a figure which shows the example of a display screen of the input display apparatus of FIG. It is a flowchart explaining the display process of the input display apparatus of FIG. It is a figure for demonstrating the input display apparatus of Example 3 of this invention, and the pen used for the handwriting input with respect to this input display apparatus. It is a block diagram for demonstrating an example of the input display apparatus of Example 4 of this invention, and a pen used for the handwriting input with respect to this input display apparatus. It is a figure explaining an example of the information memorize | stored in the corresponding | compatible display rotation angle memory | storage part of FIG. It is a flowchart explaining the display process of the input display apparatus of FIG.

  Hereinafter, preferred embodiments of the display device of the present invention will be described with reference to the drawings. In addition, in the following invention, the description which abbreviate | omits the description as the structure which attached | subjected the same code | symbol also in different drawings is the same.

Example 1
FIG. 1 is a block diagram for explaining an example of an input display device according to a first embodiment of the present invention and a pen used for handwriting input to the input display device. FIG. 2 is a schematic view of the outline of the pen of FIG.

  As shown in FIG. 1, the input display device 1 includes a control unit 10, a display unit 11, a touch panel 12, a screen control unit 13, a communication unit 14, an angle determination unit 15, and a corresponding display rotation angle storage unit 16a. In the following description, it is assumed that the input display device 1 is used in a state in which the display surface of the display unit 11 is horizontal.

The control unit 10 is configured by a CPU (Central Processing Unit) or the like, and controls the entire input display device 1.
The display unit 11 includes, for example, a liquid crystal display panel, and displays a display screen based on user input including handwriting input on the display surface.
The touch panel 12 is provided so as to cover the display surface of the display unit 11 and detects a user's touch input on the display surface. In the present example, the touch panel 12 is a projected capacitive touch panel.
The screen control unit 13 controls a display screen displayed on the display surface of the display unit 11.
The communication unit 14 communicates with the pen 2 by Bluetooth (registered trademark) or ZigBee (registered trademark). The communication unit 14 is a “tilt information receiving unit” that receives tilt information of the pen 2 from the pen 2.

Here, the pen 2 will be described.
The pen 2 includes a control unit 20, a communication unit 21, a contact detection unit 22, and a tilt information acquisition unit 23. A conductive tip is used for the pen tip of the pen 2, and when the pen tip touches the touch panel 12 of the input display device 1, the touch panel 12 can be detected.
The control unit 20 is configured by a CPU (Central Processing Unit) or the like, and controls the entire pen 2.

  The communication unit 21 communicates with the input display device 1 by Bluetooth (registered trademark) or ZigBee (registered trademark).

  The contact detection unit 22 can detect contact between the pen tip of the pen 2 and the touch panel 12. For example, the said contact can be detected by employ | adopting a structure as described in Unexamined-Japanese-Patent No. 2009-288968.

The tilt information acquisition unit 23 acquires tilt information of the pen 2. The tilt information acquisition unit 23 includes, for example, a 3-axis acceleration sensor and a geomagnetic sensor, and obtains, as tilt information, direction information indicating which direction the axial direction of the pen 2 faces based on outputs from these sensors Output. The axial direction of the pen 2 is a direction from the front end 2 b of the pen 2 toward the rear end 2 c through the central axis 2 a of the pen 2 in FIG. 2.
When the touch detection unit 22 detects a touch between the pen tip of the pen 2 and the touch panel 12, the pen 2 acquires tilt information by the tilt information acquisition unit 23 and transmits the tilt information to the input display device 1 via the communication unit 21. Do.

The description returns to the description of the input display device 1 of FIG.
The angle determination unit 15 of the input display device 1 determines the angle of the pen 2 with respect to the display surface of the display unit 11 based on the tilt information received via the communication unit 14. The input display device 1 includes a geomagnetic sensor (not shown) so that the direction in which the front of the device 1 faces can be detected. The front of the input display device 1 is a position where an image in the positive direction can be seen when normal display is performed. The angle determination unit 15 displays the display of the display unit 11 based on, for example, the information on the direction in which the front of the input display device 1 is facing and the direction information on the axial direction of the pen 2 acquired as tilt information from the pen 2 Determine the angle of the pen 2 to the surface.

The storage unit 16 is formed of a storage medium such as a hard disk drive (HDD) or a read only memory (ROM), stores various information, and has a corresponding display rotation angle storage unit 16a.
Based on the angle of the pen 2 with respect to the display surface of the display unit 11 determined by the angle determination unit 15, the direction in which the handwriting input user using the pen 2 can be estimated. In order to make the direction of the handwriting input result a positive direction as viewed from the front side of the display unit 11 regardless of the direction in which the user is located, it is necessary to rotate and display the handwriting input result. Therefore, the correspondence display rotation angle storage unit 16a stores in advance the rotation angle corresponding to the angle of the pen 2 with respect to the display surface of the display unit 11.

FIG. 3 is a diagram for explaining the information stored in the corresponding display rotation angle storage unit 16a. Here, the direction of the display surface 11a in FIG. 3A (the direction from the opposite side to the front side of the display surface 11a toward the front side, ie, the direction from the top to the bottom of the figure) coincides with the axial direction of the pen 2 In this case, the angle of the pen 2 is set to 0 °, and the value of the angle of the pen 2 increases as the axial direction of the pen 2 shifts counterclockwise.
When the angle of the pen 2 with respect to the display surface 11a is 46 to 135 °, it is estimated that the position of the handwriting input user is the position on the front side, and the handwriting input result is input even if it is not rotated at the time of display The direction of the result is positive as viewed from the front side.
On the other hand, when the angle of the pen 2 with respect to the display surface 11a is 226 to 315 °, it is estimated that the position of the handwriting input user is the position opposite to the front side, and the handwriting input result is displayed When rotated 180 °, the direction of the input result is positive as viewed from the front side.

When the angle of the pen 2 with respect to the display surface 11a is 136 to 225 °, it is estimated that the position of the handwriting input user is the right position when viewed from the front side, and the handwriting input result is displayed When rotated 90 ° clockwise, the direction of the input result is positive as viewed from the front side.
Furthermore, when the angle of the pen 2 with respect to the display surface 11a is 316 to 360 ° or 0 to 45 °, it is estimated that the position of the handwriting input user is the left position when viewed from the front side. When the display is rotated 90 ° counterclockwise, the direction of the input result is positive as viewed from the front side.

  The correspondence display rotation angle storage unit 16a is configured such that the direction of the handwriting input result is positive when viewed from the front side regardless of the direction in which the handwriting input user is estimated from the relative angle of the pen 2 with respect to the display surface of the display unit 11. For example, as in the table T1 of FIG. 3B, the rotation angle of the handwriting input result in the display is stored in advance for each angle of the pen 2.

The input display device 1 of FIG. 1 including the above-described units corresponds to the rotation angle corresponding to the angle of the pen 2 determined based on the tilt information acquired from the pen 2 at a predetermined timing, and the display rotation angle storage unit Obtain by referring to 16a.
Then, when the handwriting input by the pen 2 is finished, the screen control unit 13 causes the display unit 11 to rotate the handwritten image based on the handwriting input by the pen 2 by the acquired rotation angle and display the same.

  Thereby, the input display device 1 displays a handwritten image based on handwriting input in a direction that can be easily viewed from the front side, regardless of the input content or horizontal writing / vertical writing input, regardless of the input content from any direction. can do.

  The timing of acquiring the rotation angle corresponding to the angle of the pen 2 may be before the rotation display of the handwritten image based on the handwriting input by the pen 2 and may be after the handwriting input by the pen 2 is finished.

  FIG. 4 is a view showing an example of the display screen of the input display device 1. FIG. 4A shows that the user on the opposite side opposite to the front of the input display device 1 touches the pen 2 on the input display device 1. 4 (B) shows an example of a display screen during handwriting input, and FIG. 4 (C) shows an example of a display screen after completion of handwriting input.

  When the input display device 1 is displaying a blank display screen as shown in FIG. 4A and the handwriting input is started by using the pen 2 from the user on the opposite side, the angle as described above Determination information is acquired from the pen 2 and the angle determination unit 15 determines the angle of the pen 2 based on the information. In the illustrated example, the angle of the pen 2 is determined to be 240 °. In addition to the determination of the angle of the pen 2, the input display device 1 starts drawing processing according to handwriting input. The handwriting input data (also referred to as stroke data) used in the drawing process is stored in the storage unit 16 together with the information on the angle of the pen 2.

While the handwriting input is being performed, the input display device 1 temporarily displays the handwritten image A based on the handwriting input upside down, as shown in FIG. 4 (B).
After the end of the handwriting input, the input display device 1 refers to the table T1 of FIG. 3B and acquires a rotation angle corresponding to the angle of the pen 2. In the example of the figure, 180 degrees is acquired as a rotation angle corresponding to the angle 240 degrees of the pen 2. And, the input display device 1
Based on the handwriting input data stored in the storage unit 16, by rotating it 180 degrees corresponding to the angle of the pen 2 described above, as shown in FIG. Can be displayed as

FIG. 5 is a flowchart for explaining display processing of the input display device 1 of FIG.
As illustrated, when the pen-down is performed on the display screen of the input display device 1 (step S1), the input display device 1 detects the touch of the pen 2 on the touch panel 12, and the axis of the pen 2 as inclination information. Direction information indicating which direction the direction is directed is received from the pen 2 via the communication unit 14 (step S2).

Then, the angle determination unit 15 determines the angle of the pen 2 with respect to the display surface based on the tilt information (step S3). Information on the angle of the pen 2 with respect to the display surface obtained by the determination is stored in the storage unit 16.
Next, the control unit 10 of the input display device 1 determines whether the user has moved the pen 2 based on the output from the touch panel 12 (step S4).

If the user has moved the pen 2 (in the case of YES), the screen control unit 13 performs drawing processing based on the output from the touch panel 12 so that the locus of the pen 2 is drawn (step S5), step Proceed to S6. The handwriting input data used for the drawing process is stored in the storage unit 16.
When the user has not moved the pen 2 (in the case of NO at step S4), the input display apparatus 1 proceeds the process to step S6 as it is.

In step S6, the input display device 1 determines whether the user has released the pen 2 from the device 1 based on the output from the touch panel 12.
When the pen 2 is not released (in the case of NO), the input display device 1 returns the process to step S4. If the pen 2 has been released (in the case of YES), the input display device 1 activates the timer with a time-out time of, for example, one second (step S7).

Next, it is determined whether the control unit 10 of the input display device 1 has timed out (step S8).
If timed out (in the case of YES), that is, if the handwriting input by the pen 2 has been completed, the input display device 1 displays the rotation angle corresponding to the angle of the pen 2 stored in the storage unit 16 It acquires with reference to table T1 (refer FIG. 3) of the rotation angle memory | storage part 16a (step S9). Then, the screen control unit 13 rotates the handwritten image by the acquired rotation angle, and displays the handwritten image on the display unit 11 instead of the original handwritten image (step S10).

  If it is determined in step S8 that the timeout has not occurred (in the case of NO), it is determined based on the output from the touch panel 12 whether or not the pen is lowered again (step S11). When the pen is not down (in the case of NO), the input display device 1 returns the process to step S8, and when the pen is down (in the case of YES), the timer is cleared and stopped (step S12). Return to S4. Here, when the pen is lowered again, the tilt information of the pen is not acquired again, and the angle of the pen 2 with respect to the display surface is not redetermined. This is because the user is unlikely to change places within the timeout time.

(Example 2)
In the above example, the input display device acquires pen tilt information from the pen, and determines the pen angle with respect to the display surface based on the tilt information. However, when the user's palm touches the touch panel of the input display device together with the pen tip, as shown in FIG. 6 described later, the input area R1 by the pen tip and the input area R2 by the palm of the user are detected. The angle of the pen with respect to the display surface can be determined based on the positional relationship between the regions R1 and R2. More specifically, for example, the direction from the center of the input area R1 toward the center of the input area R2 is taken as the axial direction of the pen 2, and the angle of the pen with respect to the display surface can be determined based on the axial direction of the pen 2. In this case, it is not necessary to provide the geomagnetic sensor in the input display device, and it is not necessary to provide the three-axis acceleration sensor and the geomagnetic sensor on the pen, so the cost can be reduced.

(Example 3)
FIG. 6 is a figure for demonstrating the input display apparatus of Example 3 of this invention, and the pen used for the handwriting input with respect to this input display apparatus.
The first embodiment is based on the premise that the user uses either the right hand or the left hand in handwriting input with a pen.

As shown in FIGS. 6 (A) and 6 (B), even when the handwriting input is performed by the pen 2 'from the front side of the input display device 1', the angle of the pen 2 'depends on whether the right hand or the left hand is used. Is different.
Therefore, a determination unit for determining whether handwriting input by the right hand or handwriting by the left hand is provided in the input display device 1 ′, and the handwriting input by the right hand and handwriting input by the left hand determines the rotation angle of the handwritten image to be displayed after handwriting input ends. You should make it different.

The determination as to whether the handwriting input is performed by the right hand or the handwriting input by the left hand can be performed, for example, as follows. That is, the pen 2 'is provided with a switch, and the operation status of the switch is transmitted to the input display 1' at a predetermined timing. In the input display device 1 ′, the above determination can be performed based on the received information on the operation status.
The determination method of the right hand / left hand is not limited to the above-described example, and for example, the same switch as described above may be provided on the input display device 1 'side, and the determination may be performed based on the operation status of the switch.

  In addition, when the user's palm touches the touch panel together with the pen tip, the prior art is a method of canceling the touch input by the palm and making only the touch input by the pen tip effective (for example, JP 2013-8317). Can be used. Further, it can be determined whether the area of the input area is larger than a predetermined value or not whether the input area is the pen tip or the hand of the user.

(Supplementary notes on Examples 1 and 3)
In the above example, it is assumed that the display surface of the display unit is horizontal, and the angle of the pen with respect to the display surface is determined by the direction in which the front side of the input display device faces and the direction of the axial direction of the pen 2 . If the display surface of the display unit is not horizontal, in addition to the above information, the angle of the normal to the display surface with respect to the vertical direction and the angle of the pen in the axial direction with respect to the vertical direction are obtained. The pen angle with respect to the display surface can be determined. The determination method of the relative angle of the pen to the display surface is not limited to these.

  Further, in the above example, direction information indicating which direction the axis direction of the pen is directed is calculated / acquired based on outputs from the acceleration sensor and the geomagnetic sensor. However, the output from the acceleration sensor and the geomagnetic sensor is transmitted from the pen to the input display device 1 as angle determination information, and the input display device 1 calculates / acquires direction information of the pen axis based on the output. It is also good.

(Supplementary notes on Examples 1 to 3)
The table T storing the rotation angle corresponding to the angle of the pen with respect to the display surface of the display unit may be set individually by the user. This is because some users hold special pens.

(Example 4)
FIG. 7 is a block diagram for explaining an example of an input display device according to a fourth embodiment of the present invention and a pen used for handwriting input to the input display device. FIG. 8 is a diagram for explaining an example of information stored in the correspondence display rotation angle storage unit 32 a of FIG. 7.

  In this example, a pen ID, which is identification information for identifying a pen, is assigned to each pen, and the user selectively uses the pen in accordance with the position of the user with respect to the input display device 1 ′ ′ when performing handwriting input.

Therefore, the pen 2 ′ ′ includes a pen ID storage unit 42 that stores a pen ID.
When the contact detection unit 22 detects a touch between the pen tip of the pen 2 ′ ′ and the touch panel 12, the communication unit 41 transmits the pen ID stored in the pen ID storage unit 42 to the input display device 1.

The communication unit 31 of the input display device 1 ′ ′ receives a pen ID from the pen 2 ′ ′.
The corresponding display rotation angle storage unit 32 a of the storage unit 32 stores in advance the rotation angle of the handwritten image corresponding to the pen ID. The correspondence display rotation angle storage unit 32 a stores, in advance, the rotation angle of the handwritten image for each pen ID, for example, as in the table T2 of FIG. 8.

The input display device 1 ′ ′ acquires the rotation angle corresponding to the pen ID acquired from the pen 2 ′ ′ with reference to the corresponding display rotation angle storage unit 32a at a predetermined timing.
Then, when the handwriting input by the pen 2 ′ ′ is completed, the screen control unit 13 causes the display unit 11 to rotate the handwritten image by the pen 2 ′ ′ by the acquired rotation angle.

  For example, when the user performs handwriting input from the front side and the opposite side of the input display device 1 ′ ′, the user uses a pen with a pen ID of “1.” When the user starts handwriting input using this pen, the pen is used. The ID "1" is transmitted to the input display device 1 ". In the input display device 1, the table T2 of the display rotation angle storage unit 32a is referred to, and the rotation angle 180 ° corresponding to the ID “1” is acquired. Then, when the handwriting input is completed, in the input display device 1, the screen control unit 13 rotates the handwritten image by 180 ° and causes the display unit 11 to display the rotated image.

  By doing as described above, in the input display device 1 ′ ′, even if handwriting input is performed from any direction, handwriting is made in a direction that can be easily viewed from the front side regardless of input content or horizontal writing input / vertical writing input A handwritten image based on the input can be displayed.

FIG. 9 is a flowchart for explaining the display process of the input display device 1 ′ ′ of FIG.
As illustrated, when the pen down is performed on the display screen of the input display device 1 ′ ′ (Step S21), the input display device 1 ′ ′ detects a touch of the pen 2 ′ ′ with respect to the touch panel 12, and the pen ID "" Through the communication unit 31 (step S22). The received pen ID is stored in the storage unit 32.

  Then, the control unit 10 of the input display device 1 ′ ′ determines whether the user has moved the pen 2 ′ ′ based on the output from the touch panel 12 (step S23).

If the user has moved pen 2 ′ ′ (in the case of YES), the screen control unit 13 performs drawing processing based on the output from the touch panel 12 so that the locus of pen 2 ′ ′ is drawn (step S24) The process proceeds to step S25. The handwriting input data used for the drawing process is stored in the storage unit 32.
When the user does not move the pen 2 ′ ′ (Step S23, NO), the input display apparatus 1 proceeds the process to Step S25.

In step S <b> 25, the input display device 1 ′ ′ determines whether the user has released the pen 2 ′ ′ from the device 1 ′ ′ based on the output from the touch panel 12.
If the pen 2 ′ ′ is not released (in the case of NO), the input display 1 ′ returns the process to step S23. When the pen 2 "is released (in the case of YES), the input display apparatus 1" activates the timer with a time-out time of, for example, one second (step S26).

Next, it is determined whether the control unit 10 of the input display device 1 '' has timed out (step S27).
If it has timed out (in the case of YES), that is, if the handwriting input by the pen 2 ′ ′ is completed, the input display device 1 ′ ′ rotates the angle corresponding to the pen ID of the pen 2 ′ ′ stored in the storage unit 32 Is acquired with reference to the table T2 (see FIG. 8) of the corresponding display rotation angle storage unit 32a (step S28), and the screen control unit 13 rotates the handwritten image by the acquired rotation angle to obtain the original. Instead of the handwritten image, it is displayed on the display unit 11 (step S29).

  If it is determined in step S27 that the timeout has not occurred (in the case of NO), it is determined based on the output from the touch panel 12 whether the pen is lowered again (step S30). If the pen is not down (in the case of NO), the input display device 1 returns the process to step S27, and if the pen is down (in the case of YES), the timer is cleared and stopped (step S31). Return to S22. Here, when the pen is lowered again, the pen ID is not reacquired. This is because there is a high possibility that the user will continue to draw a place within the timeout time.

  Note that the display color of the handwritten image may be made different according to the pen ID.

(Supplementary notes on the first to fourth embodiments)
The rotation of the handwritten image is preferably performed about the center of the image. When the rotated handwritten image extends out of the display surface, such as when rotated by 90 °, it is preferable that the screen control unit reduce and display the rotated handwritten image so as to fit within the display surface.

  In the above-described example, pen down, that is, handwriting input is detected based on whether or not the touch panel and the pen tip are in contact with each other. However, even if the pen tip is not completely in contact with the touch panel, if a change in capacitance of a predetermined amount or more is detected by the touch panel, handwriting input may be performed. In this case, it is not necessary to provide the above-mentioned contact detection unit in the pen, and information on tilt information and pen ID is transmitted from the pen periodically, not after contact detection on the pen tip.

  The input display device includes a display unit having a display surface for displaying information, a touch panel for detecting handwriting input by a user's pen on the display surface, and an angle determination unit that determines an angle of the pen to the display surface. A rotation angle storage unit for storing in advance the rotation angle corresponding to the angle of the pen, and after the handwriting input by the pen is completed, the handwritten image based on the handwriting input is rotated by the rotation angle corresponding to the angle of the pen Display. As a result, regardless of which direction the handwriting input is made, the handwritten image based on the handwriting input can be displayed in an orientation that is easy to see from the predetermined direction regardless of the input content or the horizontal writing / vertical writing input.

  The input display device may include a tilt information receiving unit that receives tilt information of the pen from the pen, and the angle determination unit may determine the angle of the pen with respect to the display surface based on the tilt information of the pen. This makes it possible to accurately determine the angle of the pen with respect to the display surface.

  The input display device includes a determination unit that determines whether handwriting input with the right hand or handwriting with the left hand is performed, and the rotation angle of the handwritten image displayed after handwriting input is different between handwriting input with the right hand and handwriting input with the left hand. Good. This makes it possible to display a handwritten image based on handwriting input in an orientation that makes it easy to see from a predetermined direction, regardless of whether it is handwriting input by the right hand or handwriting input by the left hand.

  The input display device includes a display unit having a display surface for displaying information, and a touch panel for detecting handwriting input by a user's pen on the display surface, and a rotation angle storage for storing a rotation angle corresponding to identification information of the pen. And an identification information acquisition unit for acquiring pen identification information from the pen, and after completion of handwriting input by the pen, a handwritten image based on the handwriting input for the rotation angle corresponding to the identification information acquired from the pen Rotate to display. As a result, regardless of which direction the handwriting input is made, the handwritten image based on the handwriting input can be displayed in an orientation that is easy to see from the predetermined direction regardless of the input content or the horizontal writing / vertical writing input.

  When the input display device rotates and displays the handwritten image, if the rotated handwritten image extends out of the display surface, the handwritten image may be reduced and displayed. Thus, the entire handwritten image can be displayed.

1, 1 ', 1 "... input display device, 10 ... control unit, 11 ... display unit, 11a ... display surface, 12 ... touch panel, 13 ... screen control unit, 14 ... communication unit, 15 ... angle determination unit, 16 , 32 ... storage unit 16a, 32a ... corresponding display rotation angle storage unit 2, 2 ', 2 "... pen, 20 ... control unit, 21, 41 ... communication unit, 22 ... contact detection unit, 23 ... tilt information acquisition Part 42: Pen ID storage part.

Claims (9)

An input display device comprising: a display unit having a display surface for displaying information; and a touch panel for detecting handwriting input by a user's pen on the display surface,
An angle determination unit that determines an angle of the pen with respect to the display surface;
A rotation angle storage unit which stores in advance a rotation angle corresponding to the angle of the pen;
A handwriting input end determination unit that determines an end of handwriting input by the pen;
During handwriting input by the pen, the handwritten image is displayed without being rotated so that the locus of the pen input by handwriting is drawn on the display surface.
An input display apparatus, wherein a handwritten image based on the handwriting input is rotated and displayed by a rotation angle corresponding to an angle of the pen after the handwriting input by the pen is finished. A tilt information receiving unit that receives tilt information of the pen from the pen;
The input display apparatus according to claim 1, wherein the angle determination unit determines an angle of the pen with respect to the display surface based on tilt information of the pen.   The input display apparatus according to claim 2, wherein the tilt information is information based on an output of an acceleration sensor provided in the pen. The tilt information is direction information of a pen indicating which direction the axial direction of the pen faces.
The input display device includes a direction information acquisition unit that acquires direction information of the input display device indicating a direction in which a predetermined surface of the input display device faces.
The input display according to claim 2 or 3, wherein the angle determination unit determines an angle of the pen with respect to the display surface based on direction information of the pen and direction information of the input display device. apparatus. The direction information of the pen is information based on the output of a geomagnetic sensor provided on the pen,
The input display device comprises a geomagnetic sensor,
The input display device according to claim 4, wherein the direction information acquisition unit acquires direction information of the input display device based on an output of the geomagnetic sensor of the input display device.   It is provided with a determination unit that determines whether the handwriting input by the right hand or the handwriting input by the left hand, and that the rotation angle of the handwritten image displayed after the handwriting input is different between the handwriting input by the right hand and the handwriting input by the left hand The input display device according to any one of claims 1 to 5, characterized in that: A rotation angle storage unit storing a rotation angle corresponding to identification information of the pen, comprising: a display unit having a display surface for displaying information; and a touch panel for detecting handwriting input by a user's pen on the display surface.
An identification information acquisition unit that acquires identification information of the pen from the pen;
A handwriting input end determination unit that determines an end of handwriting input by the pen;
During handwriting input by the pen, the handwritten image is displayed without being rotated so that the locus of the pen input by handwriting is drawn on the display surface.
An input display apparatus characterized by rotating and displaying a handwritten image based on the handwriting input by an angle of rotation corresponding to identification information acquired from the pen after completion of handwriting input by the pen.   The handwriting input end determination unit determines whether or not the user has released the pen from the input display device based on the output from the touch panel, and a predetermined time in a state where the user releases the pen from the input display device The input display device according to any one of claims 1 to 7, wherein it is determined that the handwriting input has ended when it has elapsed. The display device according to any one of claims 1 to 8, wherein, when the handwritten image is rotated and displayed, the handwritten image is reduced and displayed if the rotated handwritten image extends outside the display surface. The input display device described in the section.