JP6757114B2 - Input display device - Google Patents

Description

The present invention relates to an input display device, and more particularly to an input display device provided with a touch panel and capable of handwriting input with a pen.

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 input by touch operation are integrated. The input display device integrated with this 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 inputs by handwriting using a pen.

Input display devices capable of handwriting input with a pen are becoming cheaper and have been used for applications other than the above, such as 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 handwriting input from the front of the device, and in a face-to-face business negotiation in which the customer and the clerk are seated facing different directions, the clerk inputs by handwriting so that the customer can see. At that time, for example, it is necessary to do as follows. That is, it is necessary to change the orientation of the input display device with the customer side facing the front, then input by handwriting so that the clerk side faces the front, and then return the orientation of the input display device so that the customer side faces the front again. .. If the orientation of the input display device cannot be changed, the clerk must move to the customer side, which is the front side of the input display device, to input by handwriting.

In Patent Document 1, when a plurality of handwriting input persons having different seating positions exchange information by handwriting characters alternately using the same touch panel, the display direction of the handwriting image is determined based on the handwriting direction of the handwriting character input. Instead, an input display device that aligns the display directions is disclosed.

Japanese Unexamined Patent Publication No. 2011-28697

However, the input display device of Patent Document 1 cannot display handwritten images from all directions on the input display device in a predetermined direction. For example, when vertical writing is input from the horizontal side, the handwritten image cannot be displayed in an orientation that makes it easy to see from the front side. Further, when only one character is handwritten or when a figure is handwritten, that is, when a text other than a sentence is handwritten, the input display device of Patent Document 1 cannot correctly determine the handwriting direction, so a 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-mentioned circumstances, and it is easy to see from a predetermined direction regardless of the input content or the horizontal writing input / vertical writing input even when handwritten input is performed from any direction. An object of the present invention is to provide an input display device that displays a handwritten image based on handwritten input in an orientation.

In order to solve the above problem, the first technical means of the present invention includes an input having a display surface for displaying information and a touch panel for detecting handwritten input by a user's pen on the display surface. An angle determination unit that determines the angle of the pen with respect to the display surface, a rotation angle storage unit that stores a rotation angle corresponding to the angle of the pen in advance , and tilt information of the pen in the display device. The angle determination unit includes an inclination information receiving unit that receives from the pen , determines the angle of the pen with respect to the display surface based on the inclination information of the pen, and after the handwriting input by the pen is completed, the angle determination unit of the pen. The feature is that the handwritten image based on the handwritten input is rotated and displayed by the rotation angle corresponding to the angle.

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

According to the third technical means of the present invention, in the first or second technical means, the tilt information is the direction information of the pen indicating which direction the axial direction of the pen is facing, and the input display. The device includes a direction information acquisition unit for acquiring direction information of the input display device, which indicates a direction in which a predetermined surface of the input display device is facing, and the angle determination unit includes the direction information of the pen and the input. It is characterized in that the angle of the pen with respect to the display surface is determined based on the direction information of the display device .
The fourth technical means of the present invention is the fourth technical means, in which the direction information of the pen is information based on the output of the geomagnetic sensor provided on the pen, and the input display device includes the geomagnetic sensor. The direction information acquisition unit is characterized in that it acquires direction information of the input display device based on the output of the geomagnetic sensor of the input display device .

The fifth technical means of the present invention includes a determination unit for determining whether handwritten input by the right hand or handwritten input by the left hand in any one of the first to fourth technical means, and the handwritten input by the right hand and the handwritten input by the left hand. The handwriting input is characterized in that the rotation angle of the handwriting image displayed after the completion of the handwriting input is different.

According to the sixth technical means of the present invention, when the handwritten image is rotated and displayed in any one of the first to fifth technical means, when the rotated handwritten image extends beyond the display surface. The feature is that the handwritten image is reduced and displayed.

According to the input display device of the present invention, a handwritten image based on handwritten input in a direction that makes it easy to see from a predetermined direction regardless of the input content or horizontal / vertical input regardless of the direction of handwritten input. Can be displayed.

It is a block diagram for demonstrating an example of an input display device of Example 1 of this invention and a pen used for handwriting input to the input display device. It is a schematic diagram of the pen of FIG. It is a figure explaining the information stored in the corresponding display rotation angle storage part of FIG. It is a figure which shows the display screen example of the input display device of FIG. It is a flowchart explaining the display process of the input display device of FIG. It is a figure for demonstrating the input display device of Example 2 of this invention, and the pen used for the handwriting input to the input display device. It is a block diagram for demonstrating an example of the input display device of the reference example of this invention, and the pen used for handwriting input to the input display device. It is a figure explaining an example of the information stored in the corresponding display rotation angle storage part of FIG. It is a flowchart explaining the display process of the input display device of FIG.

Hereinafter, preferred embodiments of the display device of the present invention will be described with reference to the drawings. In the following invention, it is assumed that the configurations with the same reference numerals are the same in different drawings, and the description thereof will be omitted.

(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 outer shape 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 where the display surface of the display unit 11 is horizontal.

The control unit 10 is composed of a CPU (Central Processing Unit) and the like, and controls the entire input display device 1.
The display unit 11 is composed of, 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 to the display surface. In this example, it is assumed that the touch panel 12 is a projection type capacitance type touch panel.
The screen control unit 13 controls the 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), ZigBee (registered trademark), or the like. 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 the touch panel 12 can be detected when the pen tip touches the touch panel 12 of the input display device 1.
The control unit 20 is composed of a CPU (Central Processing Unit) and the like, and controls the entire pen 2.

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

The contact detection unit 22 can detect the contact between the pen tip of the pen 2 and the touch panel 12. For example, the contact can be detected by adopting the configuration as described in Japanese Patent Application Laid-Open No. 2009-288968.

The tilt information acquisition unit 23 acquires the 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 acquires direction information indicating which direction the axial direction of the pen 2 is facing based on the output from these sensors as tilt information. And output. The axial direction of the pen 2 is a direction from the front end 2b of the pen 2 to the rear end 2c through the central axis 2a of the pen 2 in FIG.
When the contact detection unit 22 detects the contact between the pen tip of the pen 2 and the touch panel 12, the pen 2 acquires the tilt information by the tilt information acquisition unit 23 and transmits it to the input display device 1 via the communication unit 21. To do.

Returning 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 as to be able to detect the direction in which the front surface of the device 1 is facing. The front of the input display device 1 is a position where an image in the positive direction can be seen when performing normal display. The angle determination unit 15 displays the display unit 11 based on, for example, information on the direction in which the front of the input display device 1 is facing and information on the axial direction of the pen 2 acquired from the pen 2 as tilt information. Determine the angle of the pen 2 with respect to the surface.

The storage unit 16 is composed of a storage medium such as an HDD (Hard Disk Drive) or a ROM (Read Only Memory), stores various types of information, and has a corresponding display rotation angle storage unit 16a.
The direction in which the handwriting input user using the pen 2 is located can be estimated from the angle of the pen 2 with respect to the display surface of the display unit 11 determined by the angle determination unit 15. In order to make the direction of the handwritten input result positive when viewed from the front side of the display unit 11 regardless of the estimated direction in which the user is located, it is necessary to rotate and display the handwritten input result. Therefore, the corresponding 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 information stored in the corresponding display rotation angle storage unit 16a. Here, the orientation of the display surface 11a in FIG. 3A (the direction from the side opposite to the front surface of the display surface 11a toward the front side, that is, the direction from the top to the bottom in the drawing) 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 in the counterclockwise direction.
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 during display. The direction of the result is positive when 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 at the time of display. When rotated 180 °, the direction of the input result becomes positive when viewed from the front side.

Further, 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 position on the right side when viewed from the front side, and the handwriting input result is displayed at the time of display. When rotated 90 ° clockwise, the direction of the input result becomes positive when viewed from the front side.
Further, 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 position on the left side when viewed from the front side, and the handwriting input result is , When the display is rotated 90 ° counterclockwise, the direction of the input result becomes the positive direction when viewed from the front side.

In the corresponding display rotation angle storage unit 16a, 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 located, which is estimated from the relative angle of the pen 2 with respect to the display surface of the display unit 11. For example, as shown in the table T1 of FIG. 3B, the rotation angle of the handwritten input result at the time of display is stored in advance for each angle of the pen 2.

The input display device 1 of FIG. 1 including each of the above units displays a 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. Obtained with reference to 16a.
Then, when the handwriting input by the pen 2 is completed, the screen control unit 13 rotates the handwriting image based on the handwriting input by the pen 2 by the acquired rotation angle and displays it on the display unit 11.

As a result, the input display device 1 displays a handwritten image based on the handwritten input in a direction that makes it easy to see from the front side regardless of the input content or the horizontal writing input / vertical writing input regardless of the handwritten input 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 handwritten input by the pen 2, or may be after the handwritten input by the pen 2 is completed.

FIG. 4 is a diagram showing an example of a display screen of the input display device 1, and FIG. 4 (A) shows a user on the opposite side of the front of the input display device 1 touching the pen 2 to the input display device 1. An example of a display screen when the handwriting input is started, FIG. 4 (B) shows an example of a display screen during the handwriting input, and FIG. 4 (C) shows an example of a display screen after the end of the handwriting input.

When the input display device 1 is displaying a blank display screen as shown in FIG. 4A and the user on the opposite side starts handwriting input using the pen 2, the angle is as described above. The 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 example of the figure, the angle of the pen 2 is determined to be 240 °. In addition to determining the angle of the pen 2, the input display device 1 starts drawing processing according to handwriting input. The handwritten 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.

As shown in FIG. 4B, the input display device 1 temporarily displays the handwritten image A based on the handwritten input upside down during the handwritten input.
After the handwriting input is completed, the input display device 1 refers to the table T1 in FIG. 3B to acquire a rotation angle corresponding to the angle of the pen 2. In the example of the figure, 180 ° is acquired as the rotation angle corresponding to the angle 240 ° of the pen 2. Then, the input display device 1
Based on the handwritten input data stored in the storage unit 16, the handwritten image A is oriented in the positive direction as shown in FIG. 4 (C) by rotating the pen 2 by 180 ° corresponding to the angle of the pen 2. Can be displayed as follows.

FIG. 5 is a flowchart illustrating the display process of the input display device 1 of FIG.
As shown in the figure, 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 contact of the pen 2 with the touch panel 12 and uses the axis of the pen 2 as tilt information. Direction information indicating which direction the direction is facing 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). The 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 or not the user has moved the pen 2 based on the output from the touch panel 12 (step S4).

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

In step S6, the input display device 1 determines whether or not 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 (NO), the input display device 1 returns the process to step S4. When the pen 2 is released (YES), the input display device 1 starts the timer with the timeout time set to, for example, 1 second (step S7).

Next, it is determined whether or not the control unit 10 of the input display device 1 has timed out (step S8).
When the time-out has occurred (YES), that is, when 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 storage pen 2 on the storage unit 16. It is acquired by referring to the table T1 (see FIG. 3) of the rotation angle storage unit 16a (step S9). Then, the screen control unit 13 rotates the handwritten image by the acquired rotation angle and displays it on the display unit 11 instead of the original handwritten image (step S10).

In step S8, if the time-out has not occurred (NO), it is determined based on the output from the touch panel 12 whether or not the pen is down again (step S11). If it is not pen-down (NO), the input display device 1 returns the process to step S8, and if it is pen-down (YES), the timer is cleared and stopped (step S12), and then the process is stepped. Return to S4. Here, when the pen is pulled down again, the tilt information of the pen is not reacquired, and the angle of the pen 2 with respect to the display surface is not redetermined. This is because it is unlikely that the user will change location within the timeout period.

(Example 2 )
FIG. 6 is a diagram for explaining an input display device according to a second embodiment of the present invention and a pen used for handwriting input to the input display device.
The first embodiment is based on the premise that the user uses either the right hand or the left hand when inputting handwriting with a pen.

As shown in FIGS. 6 (A) and 6 (B), even when 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, the input display device 1'is provided with a determination unit for determining whether the handwriting input is performed by the right hand or the left hand, and the rotation angle of the handwritten image displayed after the completion of the handwriting input is determined between the handwriting input by the right hand and the handwriting input by the left hand. You should make it different.

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

In addition, when the user's palm touches the touch panel together with the pen tip, a method of canceling the touch input by the palm and enabling only the touch input by the pen tip is a conventional technique (for example, Japanese Patent Application Laid-Open No. 2013-8317). Can be used. Further, whether the input area is due to the pen tip or the palm of the user can be determined by whether or not the area of the input area is larger than a predetermined value.

(Additional notes relating to Examples 1 and 2 )
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 is facing and the direction in 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 line of 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 acquired, and based on this information. It is possible to determine the pen angle with respect to the display surface. The method for determining the relative angle of the pen with respect to the display surface is not limited to these.

Further, in the above example, the direction information indicating which direction the pen is oriented in the axial direction is calculated / acquired by the pen based on the output 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 the axial direction information of the pen based on the output. May be good.

(Additional notes relating to Examples 1 and 2 )
The table T that stores the rotation angle corresponding to the angle of the pen with respect to the display surface of the display unit may be individually set by the user. This is because some users may hold a special pen.

(Reference example)
FIG. 7 is a block diagram for explaining an input display device of a reference example of the present invention and an example of a pen used for handwriting input to the input display device. FIG. 8 is a diagram illustrating an example of information stored in the corresponding display rotation angle storage unit 32a of FIG. 7.

In this example, a pen ID, which is identification information for identifying the pen, is assigned to each pen, and the user properly uses the pen according to the position of the user with respect to the input display device 1 "when inputting by handwriting.

Therefore, the pen 2 "provides a pen ID storage unit 42 for storing the pen ID.
When the contact detection unit 22 detects the contact 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 the pen ID from the pen 2".
The corresponding display rotation angle storage unit 32a of the storage unit 32 stores in advance the rotation angle of the handwritten image corresponding to the pen ID. Correspondence display rotation angle storage unit 32a, for example, as a table T2 in FIG. 8, stores in advance the rotation angle of the handwritten image for each pen ID.

The input display device 1 "acquires the rotation angle corresponding to the pen ID acquired from the pen 2" by referring 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 rotates the handwritten image by the pen 2" by the acquired rotation angle and displays it on the display unit 11.

For example, when the user inputs handwriting from the front side and the opposite side of the input display device 1 ", the user uses a pen having a pen ID of" 1 ". When the user starts handwriting input using this pen, the pen The ID "1" is transmitted to the input display device 1 ". The input display device 1 refers to the table T2 of the display rotation angle storage unit 32a and acquires the rotation angle 180 ° corresponding to the ID “1”. Then, when the handwriting input is completed, the input display device 1 rotates the handwriting image by 180 ° by the screen control unit 13 and displays it on the display unit 11.

By doing the above, even if the input display device 1 "is handwritten from any direction, it is handwritten in a direction that makes it easy to see from the front side regardless of the input content or horizontal / vertical input. A handwritten image based on the input can be displayed.

FIG. 9 is a flowchart illustrating the display process of the input display device 1 ”of FIG.
As shown in the figure, when pen down is performed on the display screen of the input display device 1 "(step S21), the input display device 1" detects the contact of the pen 2 "with the touch panel 12 and sets the pen ID to the pen 2. Is received via 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 or not the user has moved the pen 2" based on the output from the touch panel 12 (step S23).

When the user is moving the pen 2 "(YES), the screen control unit 13 performs drawing processing based on the output from the touch panel 12 so that the trajectory of the pen 2" is drawn (step S24). , Proceed to step S25. The handwritten input data used for the drawing process is stored in the storage unit 32.
If the user has not moved the pen 2 "(in the case of steps S23 and NO), the input display device 1 proceeds to step S25 as it is.

In step S25, the input display device 1 "determines whether or not 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 (NO), the input display device 1" returns the process to step S23. When the pen 2 "is released (YES), the input display device 1" starts the timer with the timeout time set to, for example, 1 second (step S26).

Next, it is determined whether or not the control unit 10 of the input display device 1 "has timed out (step S27).
When the time-out has occurred (YES), that is, when the handwriting input by the pen 2 "has been completed, the input display device 1" has the rotation angle corresponding to the pen ID of the pen 2 "stored in the storage unit 32. Is acquired by referring to the table T2 (see FIG. 7 ) 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. It is displayed on the display unit 11 instead of the handwritten image (step S29).

In step S27, if the time-out has not occurred (NO), it is determined based on the output from the touch panel 12 whether or not the pen is down again (step S30). If it is not pen-down (NO), the input display device 1 returns the process to step S27, and if it is pen-down (YES), the timer is cleared and stopped (step S31), and then the process is stepped. Return to S22. Here, when the pen is down again, the pen ID is not reacquired. This is because there is a high possibility that the user will continue drawing at the location within the timeout period.

The display color of the handwritten image may be different depending on the pen ID.

(Additional notes relating to Examples 1 and 2 and Reference Examples)
The rotation of the handwritten image is preferably performed around the center of the image. When the rotated handwritten image extends beyond the display surface, such as when it is rotated by 90 °, it is preferable that the screen control unit reduces the rotated handwritten image so that it fits within the display surface and displays it.

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

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

The input display device may include a tilt information receiving unit that receives the 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. As a result, the angle of the pen with respect to the display surface can be accurately determined.

The input display device is equipped with a determination unit for determining whether the handwriting input is performed by the right hand or the left hand. Good. This makes it possible to display a handwritten image based on the handwritten input in a direction that makes it easy to see from a predetermined direction regardless of whether the handwritten input is performed by the right hand or the left hand.

The input display device includes a display unit having a display surface for displaying information and a touch panel for detecting handwritten input by the user's pen on the display surface, and stores a rotation angle corresponding to the identification information of the pen. A unit and an identification information acquisition unit that acquires the identification information of the pen from the pen are provided, and after the handwriting input by the pen is completed, a handwritten image based on the handwriting input is provided for the rotation angle corresponding to the identification information acquired from the pen. Is rotated and displayed. As a result, regardless of the input content or the horizontal / vertical writing input, the handwritten image based on the handwriting input can be displayed in a direction that is easy to see from a predetermined direction regardless of the handwriting input from any direction.

When the handwritten image is rotated and displayed, the input display device may reduce the handwritten image and display it if the rotated handwritten image extends beyond the display surface. As a result, 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 Department, 42 ... Pen ID storage unit.

Claims (6)

An input display device including 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 the angle of the pen with respect to the display surface when the pen is in contact with the display surface.
A rotation angle storage unit that stores the rotation angle corresponding to the angle of the pen in advance,
A tilt information receiving unit that receives tilt information of the pen from the pen is provided.
The angle determination unit determines the angle of the pen with respect to the display surface based on the tilt information of the pen.
After the handwriting input by the pen is separated from the display surface, the handwriting image based on the handwriting input is rotated and displayed by the rotation angle corresponding to the angle of the pen according to the tilt information of the pen. An input display device characterized by. The input display device according to claim 1, wherein the tilt information is information based on the output of an acceleration sensor provided on the pen. The tilt information is the direction information of the pen, which indicates which direction the axial direction of the pen is facing.
The input display device includes a direction information acquisition unit for acquiring direction information of the input display device, which indicates a direction in which a predetermined surface of the input display device is facing.
The input display according to claim 1 or 2, wherein the angle determination unit determines the angle of the pen with respect to the display surface based on the direction information of the pen and the direction information of the input display device. apparatus. The direction information of the pen is information based on the output of the geomagnetic sensor provided on the pen.
The input display device includes a geomagnetic sensor.
The input display device according to claim 3, wherein the direction information acquisition unit acquires direction information of the input display device based on the output of the geomagnetic sensor of the input display device. A determination unit for determining whether the handwriting input is performed by the right hand or the left hand is provided, and the rotation angle of the handwritten image displayed after the completion of 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 4, which is characterized. Any one of claims 1 to 5, wherein when the handwritten image is rotated and displayed, if the rotated handwritten image extends beyond the display surface, the handwritten image is reduced and displayed. The input display device described in the section.

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