JP6797270B2 - Input display device and control method - Google Patents

Description

The present invention relates to an input display device and a control method for displaying drawing information at a location input by an entrant.

In recent years, electronic blackboards including an Interactive Whiteboard (commonly known as IWB) have been used in classrooms and offices. On the electronic blackboard, when the writer (for example, a teacher in the classroom) inputs drawing information such as characters and pictures on the board with the pen tip or the writer's fingertip, the drawing information is viewed around the input location. It is displayed on the display unit toward the person (for example, the student in the case of a classroom).

On the other hand, when the writer wants to erase the drawing information displayed on the display unit, the drawing information can be erased by selecting and executing the erasing function from the menu of the application.

However, if the writer notices an error in the input while inputting with the pen tip or the fingertip, he / she may want to immediately erase the drawing information displayed on the display unit by the input. Even in this case, the writer needs to select the function to be deleted from the menu of the application. Therefore, when the writer wants to immediately erase the drawing information for the input error, the burden on the writer is large.

In Patent Documents 1 and 2, the operation mode for the display unit is switched between a drawing mode in which drawing information is displayed on the display unit in response to an input by the writer and an erasing mode in which the drawing information displayed on the display unit is erased. The technology is disclosed.

The touch panel input device described in Patent Document 1 includes a display unit for the writer to contact the operator, a sensor unit that detects the contact of the operator with the display unit as contact information, and contact information from the sensor unit. Based on the sensor information acquisition unit that acquires the contact area of the operator with respect to the display unit, the operator identification unit that determines whether or not the contact area of the operator is equal to or less than the threshold value, and the determination result of the operator identification unit. Based on this, it is provided with an operator processing unit that switches the operation mode for the display unit to a drawing mode in which the pen touches the display unit as an operator or an erase mode in which the writer's finger touches the display unit as an operator. doing. When the contact area of the operator is equal to or less than the threshold value as a judgment result, the operator processing unit sets the operation mode to the drawing mode, and in the drawing mode, the contact information input by the writer with the pen is displayed on the display unit as drawing information. When the contact area between the first operator processing unit to be displayed and the operator as a judgment result is not less than the threshold value, the operation mode is set to the erase mode, and in the erase mode, based on the contact information input by the writer with a finger. It includes a second operator processing unit that erases drawing information. The second operator processing unit includes an expansion processing unit that displays an eraser at the contact position of the writer's finger with respect to the display unit in the erasing mode.

The pen input device described in Patent Document 2 includes a display unit, a touch panel for the writer to indicate an arbitrary position with the pen, a contact area detection unit for detecting the contact area of the pen with respect to the display unit, and a pen. Based on the judgment result of the pen tip discriminating unit for determining whether the contact area is the first pen tip or the second pen tip provided on the pen, and the determination result of the pen tip discriminating unit, the operation mode for the display unit is set. It includes a drawing mode in which the first pen tip is in contact with the display unit, or a control unit for switching to an erasing mode in which the second pen tip is in contact with the display unit. When the contact area of the pen is the first pen tip as a determination result, the control unit sets the operation mode to the drawing mode, and in the drawing mode, the information input by the writer with the first pen tip is used as the drawing information. When the contact area between the first control unit displayed on the display unit and the pen as a judgment result is the second pen tip, the operation mode is set to the erase mode, and in the erase mode, the writer uses the second pen tip. It includes a second control unit that erases drawing information based on the input information. The first pen tip is provided at one end of the pen. The second pen tip is provided at the other end of the pen, and its thickness is thicker than that of the first pen tip.

Japanese Unexamined Patent Publication No. 2012-252652 Japanese Unexamined Patent Publication No. 7-200133

In the technique described in Patent Document 1, as described above, when the instruction medium (operator) is the pen tip, the operation mode for the display unit is set to the drawing mode, and when the instruction medium is the fingertip. Sets the operation mode for the display unit to the erase mode. However, the technique described in Patent Document 1 cannot cope with the situation where the writer performs an input operation with the pen tip while touching it. Here, the hand touch is a phenomenon in which the belly of the hand touches the display portion.

Further, in the technique described in Patent Document 1, when the contact area of the instruction medium (operator) is not equal to or less than the threshold value, the operation mode is set to the erase mode. For this reason, if the display unit is touched by a finger or the like unexpectedly, the operation mode is set to the erase mode, and the drawing information displayed on the display unit is unintentionally erased. there is a possibility.

In the technique described in Patent Document 2, as described above, when it is desired to set the operation mode for the display unit to the drawing mode, the writer moves the tip of the pen from the first pen tip to the second pen tip. I'm changing my pen so that I can switch. However, even the technique described in Patent Document 2 cannot cope with the situation where the writer performs an input operation with the pen tip while touching it.

Further, in the technique described in Patent Document 1, when the operation mode for the display unit is to be set to the drawing mode, the writer changes the pen, so that the writer wants to immediately erase the drawing information for the input error. Cannot be dealt with.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an input display device and a control method capable of easily selecting drawing information to be processed by an writer. ..

In view of the above-mentioned problems, the input display device of the present invention is
In an input display device including a display unit, an input detection unit, and a control unit,
The control unit
The drawing information is displayed on the display unit,
When the input detection unit detects inputs at a plurality of positions at the same time, it is characterized in that processing is executed for drawing information that at least overlaps the rectangular area surrounded by the detected positions.

The control method of the present invention
A control method in an input display device including a display unit and an input detection unit.
A step of displaying drawing information on the display unit and
When the input detection unit detects the input of a plurality of positions at the same time, the step of executing the process for the drawing information at least overlapping the rectangular area surrounded by the detected positions.
It is characterized by including.

According to the present invention, the writer can easily select the drawing information to be processed.

It is a figure which shows the structure of the input display device 1 which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 1st Embodiment of this invention. It is a figure that the instruction medium represents a pen tip. It is a figure in which the instruction medium represents the fingertip of the writer. It is a figure for demonstrating the touch. It is a figure for demonstrating the touch. It is a flowchart which shows the operation (input display processing) of the input display device 1 which concerns on 1st Embodiment of this invention. It is a flowchart which shows the operation (input display processing) of the input display device 1 which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process of step S113 of FIG. It is a figure for demonstrating the process of step S113 of FIG. It is a figure for demonstrating the process of step S116 of FIG. It is a figure for demonstrating the input display device 1 which concerns on 2nd Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the process of step S113 of FIG. 11 when the writer 200 touches with five fingers. It is a figure for demonstrating the circumscribed rectangular area when the writer 200 touches with five fingers, and explaining the process of step S113 of FIG. It is a flowchart which shows the process of step S113 of FIG. 11 when the writer 200 touches with two fingers. It is a figure for demonstrating the circumscribed rectangular area when the writer 200 touches with two fingers, and explaining the process of step S113 of FIG. It is a figure which shows the structure of the input display device 1 which concerns on 3rd Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 3rd Embodiment of this invention. It is a figure for demonstrating the input display device 1 which concerns on 3rd Embodiment of this invention. It is a flowchart which shows the operation (input display processing) of the input display device 1 which concerns on 3rd Embodiment of this invention. It is a flowchart which shows the operation (input display processing) of the input display device 1 which concerns on 3rd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a diagram showing a configuration of an input display device 1 according to a first embodiment of the present invention. The input display device 1 includes a display device 2, a storage device 3, and a control device 4.

The display device 2 is used as an electronic blackboard or an IWB. The display device 2 includes a display unit 11 and a plurality of sensors 12.

The display unit 11 is a liquid crystal display (LCD). The display unit 11 is installed in a state of being perpendicular to or nearly perpendicular to the ground. Alternatively, it is installed horizontally or close to the ground like a table. The display unit 11 has a display area 20 for displaying drawing information described later.

The sensors 12 are arranged in a matrix on the display unit 11. The sensor 12 can detect the input of the writer to the display unit 11 when the writer performs an input operation to the display unit 11 using the instruction medium (pen tip or fingertip of the writer). ..

Examples of the sensor 12 include a capacitance sensor and an optical sensor. The capacitance sensor is arranged in a matrix on the display unit 11 by arranging the capacitance sensor in 4096 × 2160 on the display unit 11, and detects an instruction medium (pen tip or fingertip of the writer) close to a predetermined distance or less. To do. As the coordinates, the upper left corner of the display area 20 is set to (0, 0) and the lower right corner is set to (4095, 2159), and the capacitance is detected for each coordinate. The optical sensor is built in each pixel of the display unit 11 and is arranged in a matrix on the display unit 11 to detect an instruction medium (pen tip or fingertip of the writer) in contact with the display unit 11.

The control device 4 includes a sensor drive unit 41, an input coordinate detection unit 42, a shape determination unit 43, an operation mode switching processing unit 44, a drawing information generation unit 45, a display control unit 46, and a touch recognition processing unit 47. A erasing mode transition processing unit 48, an erasing control unit 49, and a CPU (not shown) that controls these components are provided. The sensor drive unit 41 drives a plurality of sensors 12. The touch recognition processing unit 47 includes an erasure input processing unit 47a. A computer program that can be executed by a computer is stored in the storage device 3, and the CPU reads and executes the computer program. Each component of the control device 4 will be described later.

2 to 5 are diagrams for explaining the input display device 1 according to the first embodiment of the present invention. FIG. 6 is a diagram in which the instruction medium represents the pen tip. FIG. 7 is a diagram in which the instruction medium represents the fingertip of the writer. 8 and 9 are diagrams for explaining the touch.

As shown in FIG. 2, the writer 200 is currently performing an input operation on the display unit 11 used as an electronic blackboard or an IWB. Based on this input operation, the operation of the control device 4 is divided into a drawing input determination mode, a drawing mode, an erasure input determination mode, and an erasure mode.

(Drawing input judgment mode)
The input coordinate detection unit 42 of the plurality of sensors 12 when the writer 200 performs an input operation on the display unit 11 with the pen tip 201 (see FIG. 6) or the fingertip 203 (see FIG. 7). The first input coordinate information group representing the coordinates of the position of the sensor group 12 that detected the input of the writer 200 is output.

The shape determination unit 43 is formed from the first input coordinate information group by the drawing input coordinate information group "ABCDE" whose shape is represented by the pen tip 201 or the fingertip 203 of the writer 200 and the coordinates thereof. The shape to be formed is determined to be a hand-held input coordinate information group representing the hand-touched 202 (see FIG. 6) of the writer 200, and a judgment result representing them is output.

Here, the hand-held 202 is a phenomenon in which the belly of the hand or the like touches the display unit 11. Specifically, the shape determination unit 43 compares, for example, the value of the area of the detected shape with the first set value, and when the value of the area of the detected shape is equal to or less than the first set value, the pen tip 201 Alternatively, it is determined that the fingertip is 203, and if the value of the area of the detected shape is larger than the first set value, it is determined that the fingertip is 202. Here, the first set value is an upper limit value of a size assumed to be the pen tip 201 or the fingertip 203.

As shown in FIG. 8, the detected shape is in the Y-axis direction based on the minimum value “Xhmin” of the X coordinate, the maximum value “Xhmax”, the minimum value “Yhmin” of the Y coordinate, and the maximum value “Yhmax”. When the length is longer than the length in the X-axis direction, it is determined to be vertically long, and as shown in FIG. 9, when the length in the Y-axis direction is shorter than the length in the X-axis direction, it is determined to be horizontally long.

When the determination result of the shape determination unit 43 does not represent the drawing input coordinate information group, or when only the manual input coordinate information group is represented, the operation mode switching processing unit 44 draws and inputs the operation mode for the display unit 11. Set to the judgment mode again. For example, when the writer 200 only makes a hand 202 to the display unit 11, the operation mode switching processing unit 44 resets the operation mode for the display unit 11 to the drawing input determination mode.

On the other hand, as shown in FIG. 2, the operation mode switching processing unit 44 displays when the determination result of the shape determination unit 43 represents both the drawing input coordinate information group "ABCDE" and the manual input coordinate information group. The operation mode for unit 11 is set to the drawing mode (drawing process with touch). For example, when the writer 200 is performing an input operation (so-called pen down) with the pen tip 201 while making a hand 202 on the display unit 11, the operation mode switching processing unit 44 draws the operation mode for the display unit 11. Set to the mode (drawing process with touch).

Alternatively, when the operation mode switching processing unit 44 represents only the drawing input coordinate information group "ABCDE", the operation mode switching processing unit 44 sets the operation mode (untouched drawing processing) for the display unit 11 to the drawing mode. For example, when the writer 200 performs an input operation (so-called pen down or touch down) on the display unit 11 with the pen tip 201 or the fingertip 203 without touching 202, the operation mode switching processing unit 44 displays. The operation mode for unit 11 is set to the drawing mode (untouched drawing process).

(Drawing mode)
As shown in FIG. 2, the drawing information generation unit 45 represents the information input by the writer 200 to the display unit 11 with the hand 202 and the pen tip 201 based on the drawing input coordinate information group “ABCDE”. Generate drawing information 100 (drawing process with hand).

Alternatively, the drawing information generation unit 45 represents drawing information 100 that represents information input by the writer 200 to the display unit 11 with the pen tip 201 or the fingertip 203 without touching 202, based on the drawing input coordinate information group “ABCDE”. (Untouched drawing process).

The display control unit 46 performs drawing information 100 in the entry display area 21 including the coordinates of the drawing input coordinate information group “ABCDE” in the display area 20 of the display unit 11 in the drawing process with touch or the drawing process without touch. Is displayed.

Here, the storage device 3 stores information related to a drawing storage area that stores drawing information such as handwritten information, display direction, and graph information, and a menu operation process that temporarily overlaps the drawing information and displays a menu. It has a menu storage area to be stored. The menu storage area is a separate layer from the drawing storage area. Then, the drawing information generation unit 45 updates the contents of the drawing storage area of the storage device 3 that stores the contents to be displayed on the display unit 11 based on the drawing processing by itself, and the touch recognition processing unit 47 operates the menu. Based on the process, the content of the menu storage area of the storage device 3 that stores the content to be displayed on the display unit 11 is updated.

The menu is displayed in a display area (not shown) other than the display area 20 of the display unit 11. The menu display area is, for example, displayed by various icons in the leftmost area of the display unit 11. In the menu operation process, the touch recognition processing unit 47 performs processing according to the icon when the writer 200 touches the selected icon among the various icons by hand. In the present embodiment, the description of the menu operation process will be omitted.

As shown in FIG. 3, the operation mode switching processing unit 44 has an operation mode for the display unit 11 when the determination result of the shape determination unit 43 does not represent both the drawing input coordinate information group and the manual input coordinate information group. Shifts from the drawing mode (drawing process with touch) to the erase input judgment mode. For example, the writer 200 has a hand 202 on the display unit 11 and performs an input operation (pen down) with the pen tip 201, but the writer 200 stops the input operation with the pen tip 201 (so-called pen up). Further, when the hand 202 is also stopped, the operation mode switching processing unit 44 shifts the operation mode for the display unit 11 from the drawing mode (drawing process with hand) to the erase input determination mode at the timing when the hand 202 is no longer recognized.

Alternatively, when the determination result of the shape determination unit 43 does not represent the drawing input coordinate information group, the operation mode switching processing unit 44 changes the operation mode for the display unit 11 from the drawing mode (untouched drawing processing) to the erase input determination mode. Transition. For example, the writer 200 performs an input operation (pen down or touchdown) on the display unit 11 with the pen tip 201 or the fingertip 203 without touching 202, but the writer 200 uses the pen tip 201 or the fingertip 203. When the input operation is stopped (so-called pen-up or touch-up), the operation mode switching processing unit 44 sets the operation mode for the display unit 11 at the timing when the input by the pen tip 201 or the fingertip 203 is no longer recognized. Shift from (untouched drawing process) to erase input judgment mode.

(Erase input judgment mode)
In the erase input processing unit 47a of the touch recognition processing unit 47, the writer 200 within a predetermined time (for example, within 1 second) after the input operation to the display unit 11 is completed by the pen tip 201 or the fingertip 203. It is determined whether or not 200 has performed an input operation on the display unit 11.

As shown in FIG. 4, when the erasure input processing unit 47a of the touch recognition processing unit 47 receives the input of the writer 200 within a predetermined time after the input of the writer 200 is completed, the erase input processing unit 47a of the plurality of sensors 12 The second input coordinate information group representing the coordinates of the positions of the sensor group 12 that detected the input of the writer 200 is output. For example, after the writer 200 stopped the input operation by the pen tip 201 on the display unit 11 (pen-up) and stopped the hand 202, the writer 200 touched the display unit 11 by hand within a predetermined time. In this case, the second input coordinate information group is output. That is, the second input coordinate information group represents the coordinates of the position of the sensor group 12 detected when the writer 200 touches it by hand among the plurality of sensors 12.

As shown in FIG. 4, the erase mode transition processing unit 48 sets the coordinates of the second input coordinate information group when the writer 200 is input within a predetermined time after the input of the writer 200 is completed. When the erasing target area 22 including the erasing target area 22 overlaps at least a part of the entry display area 21, the operation mode for the display unit 11 is shifted from the erasing input determination mode to the erasing mode. The erasure target area 22 is an area touched by the writer 200 by hand.

On the other hand, when the predetermined time is exceeded after the input of the writer 200 is completed, the erase input processing unit 47a notifies the operation mode switching processing unit 44 to that effect, and the operation mode switching processing unit 44 displays the display unit 11. Set the operation mode for the drawing input judgment mode.

Further, when the erasure target area 22 does not overlap at least a part of the entry display area 21, the operation mode switching processing unit 44 is notified to that effect, and the operation mode switching processing unit 44 draws the operation mode for the display unit 11. Set to input judgment mode.

(Erase mode)
As shown in FIG. 4, the erasure control unit 49 erases the drawing information 101 displayed in the erasure target area 22 of the drawing information 100 displayed in the entry display area 21. For example, as shown in FIG. 5, since the entry display area 21 in which "ABCDE" is displayed as the drawing information 100 overlaps with the erasure target area 22 in which "DE" is displayed as the drawing information 101. The erasing control unit 49 erases the drawing information 101 "DE" of the drawing information 100 "ABCDE" (erasing process). As a result of the erasing process, as shown in FIG. 5, the drawing information 100 displayed in the entry display area 21 becomes “ABC”.

10 and 11 are flowcharts showing the operation (input display processing) of the input display device 1 according to the first embodiment of the present invention.

Here, as the operation of the input display device 1 according to the first embodiment of the present invention, as described above, the input display process for displaying the drawing information 100 in the display area 20 of the display unit 11 and the temporary drawing information A menu display process for displaying a menu (not shown) that overlaps with 100 can be mentioned.

Here, the former input display process will be described in detail. Further, it is assumed that the instruction medium is the pen tip 201.

As described above, the input display process is divided into a drawing input determination mode (step S11), a drawing mode (step S12), an erasure input determination mode (step S13), and an erasure mode (step S14).

(Step S11; drawing input determination mode)
In step S101, the input coordinate detection unit 42 determines whether or not the input of the writer 200 has been detected by the plurality of sensors 12. Here, when the input coordinate detection unit 42 does not detect the input of the writer 200 (step S101-No), the input coordinate detection unit 42 repeats step S101. On the other hand, when the input coordinate detection unit 42 detects the input of the writer 200 (step S101-Yes), the input coordinate detection unit 42 obtains the coordinates of the position of the sensor group 12 that has detected the input of the writer 200 among the plurality of sensors 12. The first input coordinate information group to be represented is output. After that, the input display process proceeds to step S102.

In step S102, the shape determination unit 43 is formed from the first input coordinate information group by the drawing input coordinate information group whose shape is represented by the pen tip 201 (see FIG. 6) and the coordinates thereof. The shape is determined to be the hand-held input coordinate information group representing the hand-touch 202 (see FIG. 6) of the writer 200, and the judgment result representing them is output. The drawing input coordinate information group and the manual input coordinate information group are counted as one input, and the count value is reflected in the determination result as the number of inputs.

For example, when only the pen tip 201 is detected as the input of the writer 200, the determination result represents "1" as the number of inputs and "pen tip 201 (drawing input coordinate information group)" as the content thereof. When only the hand 202 is detected as the input of the entrant 200, the determination result represents "1" as the number of inputs and "hand 202 (hand input coordinate information group)" as the content thereof. When both the pen tip 201 and the touch 202 are detected as the input of the writer 200, the determination result represents "2" as the number of inputs, and the content is "pen tip 201 (drawing input coordinate information group)". , And "Hand-touched 202 (Hand-held input coordinate information group)". After that, the input display process proceeds to step S103.

In step S103, the shape determination unit 43 detects the size of the pen tip 201 and the hand 202, that is, the area of the shape formed by the drawing input coordinate information group and the hand input coordinate information group. This detection (judgment) is represented by the minimum value "Xhmin" and the maximum value "Xhmax" of the X coordinate, the minimum value "Yhmin" and the maximum value "Yhmax" of the Y coordinate, as in FIGS. 8 and 9. .. After that, the input display process proceeds to step S104.

In step S104, the operation mode switching processing unit 44 determines whether or not the number of input of the determination result of the shape determination unit 43 is “1”. If the number of input of the determination result is "1" (step S104-Yes), the process proceeds to step S109. If the number of input of the determination result is not "1" (step S104-No), the process proceeds to step S105.

In step S105, the operation mode switching processing unit 44 determines whether or not the number of input of the determination result of the shape determination unit 43 is “2”. If the number of input of the determination result is "2" (step S105-Yes), the process proceeds to step S106. When the number of input of the determination result is not "2" (step S105-No), the operation mode switching processing unit 44 resets the operation mode for the display unit 11 to the drawing input determination mode. In this case, the input display process returns to step S101.

In step S106, the operation mode switching processing unit 44 determines whether or not the content of the determination result of the shape determination unit 43 is "pen tip 201 (drawing input coordinate information group)" and "handed 202 (hand input coordinate information group)". To judge. When the content of the determination result is not "pen tip 201 (drawing input coordinate information group)" and "handed 202 (handed input coordinate information group)" (step S106-No), the operation mode switching processing unit 44 is displayed on the display unit 11. The operation mode for is set again to the drawing input judgment mode. In this case, the input display process returns to step S101. When the content of the determination result is "pen tip 201 (drawing input coordinate information group)" and "handed 202 (handed input coordinate information group)" (step S106-Yes), the operation mode switching processing unit 44 is displayed on the display unit 11. The operation mode for is set to the hand-drawn drawing process of the drawing mode (step S12). In this case, the input display process proceeds to step S107.

In step S109, the operation mode switching processing unit 44 determines whether or not the content of the determination result of the shape determination unit 43 is “handed 202 (handed input coordinate information group)”. When the content of the determination result is "handed 202 (handed input coordinate information group)" (step S109-Yes), the operation mode switching processing unit 44 resets the operation mode for the display unit 11 to the drawing input judgment mode. In this case, the input display process returns to step S101. When the content of the determination result is not "Hand-touched 202 (Hand-held input coordinate information group)" (step S109-No), the operation mode switching processing unit 44 sets the operation mode for the display unit 11 to the drawing mode (step S12) without touching. Set to drawing process. In this case, the input display process proceeds to step S110.

(Step S12; drawing mode)
In step S107, the drawing information generation unit 45 inputs the drawing input coordinate information group “ABCDE” (see FIG. 2) by the writer 200 with the hand 202 to the display unit 11 with the pen tip 201 (pen down). The drawing information 100 representing the obtained information is generated (drawing process with hand). In the hand-drawn drawing process, the display control unit 46 displays the drawing information 100 in the entry display area 21 including the coordinates of the drawing input coordinate information group “ABCDE” in the display area 20 of the display unit 11. Step S107 (drawing process with hand) continues until the writer 200 stops the input operation by the pen tip 201 (pen-up) and further stops the hand 202 (step S108-No).

In step S108, in the drawing mode (drawing process with hand), the operation mode switching processing unit 44 has the contents of the determination result of the shape determination unit 43 as "pen tip 201 (drawing input coordinate information group)" and "hand 202 (handed drawing process)". If it is not "input coordinate information group)", the operation mode for the display unit 11 is shifted from the drawing mode (drawing process with touch) to the erase input determination mode. That is, when the writer 200 stops the input operation by the pen tip 201 (pen-up) and also stops the hand 202 (see FIG. 3), the operation mode switching processing unit 44 stops the hand 202 at the timing when the hand 202 is no longer recognized. The operation mode for the display unit 11 is shifted from the drawing mode (drawing process with touch) to the erase input determination mode (step S13). After that, the input display process proceeds to step S112.

In step S110, the drawing information generation unit 45 inputs the drawing input coordinate information group “ABCDE” (see FIG. 2) to the display unit 11 by the writer 200 with the pen tip 201 (pen down) without touching 202. The drawing information 100 representing the obtained information is generated (untouched drawing process). In the untouched drawing process, the display control unit 46 displays the drawing information 100 in the entry display area 21 including the coordinates of the drawing input coordinate information group “ABCDE” in the display area 20 of the display unit 11. Step S110 (untouched drawing process) continues until the writer 200 stops the input operation by the pen tip 201 (until the pen is raised) (step S111-No).

In step S111, the operation mode switching processing unit 44 displays the display unit when the content of the determination result of the shape determination unit 43 is not "pen tip 201 (drawing input coordinate information group)" in the drawing mode (drawing process without touching). The operation mode for 11 is shifted from the drawing mode (drawing process without touching) to the erase input determination mode. That is, when the writer 200 stops the input operation by the pen tip 201 (pen up) (see FIG. 3), the operation mode switching processing unit 44 performs the operation mode for the display unit 11 at the timing when the pen tip 201 is no longer recognized. Shifts from the drawing mode (drawing process without touching) to the erasure input determination mode (step S13). After that, the input display process proceeds to step S112.

(Step S13; Erase input determination mode)
In step S112, since the erasure input processing unit 47a of the touch recognition processing unit 47 has completed the input by the writer 200, the writer 200 has completed the input operation to the display unit 11 with the pen tip 201 within a predetermined time. , It is determined whether or not the writer 200 touches the display unit 11 by hand. Here, if there is no input of the writer 200 within the predetermined time (step S112-No), the input display process ends. On the other hand, if the writer 200 touches the display unit 11 by hand within a predetermined time (see FIG. 4) (step S112-Yes), there is a possibility that the erasure target is to be erased. Of the sensors 12 of the above, the second input coordinate information group representing the coordinates of the position of the sensor group 12 that has detected the input of the writer 200 is output. In this case, the input display process proceeds to step S113.

In step S113, the erasure mode transition processing unit 48 determines whether or not the erasure target area 22 including the coordinates of the second input coordinate information group overlaps at least a part of the latest input (entry display area 21). Here, if the erasure target area 22 does not overlap the latest entry display area 21, the input display process ends. On the other hand, when the erasure target area 22 overlaps with the latest entry display area 21 (step S113-Yes), the erasure mode transition processing unit 48 determines that the input is to erase the most recently input portion, and the erasure mode Is turned on (step S114). That is, the operation mode for the display unit 11 is shifted from the erase input determination mode to the erase mode (step S14). In this case, the input display process proceeds to step S115.

The overlap determination with the latest input (entry display area 21) in step S113 will be described later.

(Step S14; Erase mode)
In step S115, the erasure control unit 49 assigns a first ID to the input (second input coordinate information group) to be erased, assuming erasure due to an input error. Here, the erasure control unit 49 assigns a first ID to the input (second input coordinate information group) when the process first proceeds to step S115. In this case, the input display process proceeds to step S116. If there is an input (second input coordinate information group) with the same ID (first ID) continuously, the erasing process has not been completed yet, so the process proceeds to step S116. On the other hand, when the erasure control unit 49 has an input (second input coordinate information group) with an ID (second ID) different from the first ID, the erasure process is completed, and the process proceeds to step S118.

In step S116, the erasure control unit 49 detects the size with respect to the input (second input coordinate information group). When considering erasure for an input error, the most recent input target is a promising candidate for erasure. Therefore, it is not necessary to search all the data for one screen. Therefore, the erasure control unit 49 narrows down a predetermined area as the erasure target area 22 from the latest input coordinates. After that, the input display process proceeds to step S117.

The narrowing down of the erasure target area 22 with respect to the input (second input coordinate information group) in step S116 will be described later.

In step S117, the erasure control unit 49 erases the drawing information 101 "DE" displayed in the erasing target area 22 of the drawing information 100 "ABCDE" displayed in the entry display area 21 (erasing process). Here, if the erasure control unit 49 has not yet completed the erasure process, the input display process returns to step S115 while continuing the ID for the input (second input coordinate information group). On the other hand, when the erasing process is completed, the erasing control unit 49 assigns a second ID to the input (second input coordinate information group), and the input display process returns to step S115.

In step S118, the erasure control unit 49 turns off the erasure mode and shifts the operation mode for the display unit 11 from the erasure mode to the erasure input determination mode (step S11). In this case, the input display process ends.

In the erase input determination mode (step S13), when there is another input within a predetermined time (step S112-No), or when the other input does not overlap the latest entry display area 21 (step S113-). No) returns to the drawing input determination mode (step S11) after completing the input display process.

Next, the overlap determination with the latest input (entry display area 21) in step S113 will be described.

FIG. 12 is a flowchart showing the process of step S113 of FIG. FIG. 13 is a diagram for explaining the process of step S113 of FIG.

As shown in FIG. 13, for example, of the entry display area 21 in which the drawing information 100 “ABCDE” is displayed, the latest entry display area (hereinafter, the latest entry display area) in which the drawing information 102 “CDE” is displayed. With respect to 21a), when the writer 200 touches by hand within a predetermined time after the input operation by the pen tip 201 is completed, the erasure input processing unit 47a of the touch recognition processing unit 47 , It is assumed that the second input coordinate information group is output in response to the touch of the writer 200. At this time, the operation mode switching processing unit 44 detects all the touch coordinates (second input coordinate information group) (step S1131).

Next, the operation mode switching processing unit 44 sets X from the drawing storage area of the storage device 3 that stores the contents to be displayed on the display unit 11 with respect to the drawing input coordinate information group “CDE” of the latest entry display area 21a. The minimum coordinate value "RecMinX", the maximum value "RecMaxX", the minimum value "RecMinY" of the Y coordinate, and the maximum value "RecMaxY" are detected. Further, the operation mode switching processing unit 44 sets the minimum value "MinX", the maximum value "MaxX", and the minimum value "MinY" of the Y coordinate for all the touch coordinates (second input coordinate information group). The maximum value "MaxY" is detected (step S1132).

Next, the operation mode switching processing unit 44 determines whether or not the touch area 23, which is an area including the touch coordinates (second input coordinate information group) within a predetermined time, overlaps at least a part of the latest entry display area 21a. Determine (step S1133).

Here, as a condition, if RecMinX ≤ MinX ≤ RecMaxX and RecMinY ≤ MinY ≤ RecMaxY, or RecMinX ≤ MaxX ≤ RecMaxX and RecMinY ≤ MaxY ≤ RecMaxY, the touch area 23 and the nearest entry display within a predetermined time are displayed. The regions 21a overlap (step S1133-Yes). That is, in the process of step S113, S113-Yes. In this case, the operation mode switching processing unit 44 sets the touch area 23 as the erasing target area 22 and turns on the erasing mode (step S114).

On the other hand, under conditions other than the above, the touch area 23 and the latest entry display area 21a within a predetermined time do not overlap (step S1133-No). That is, in the process of step S113, S113-No is obtained.

Next, the narrowing down of the erasure target area 22 with respect to the input (second input coordinate information group) in step S116 will be described.

FIG. 14 is a diagram for explaining the process of step S116 of FIG.

For example, in the entry display area 21 in which the drawing information 100 "ABCDE" is displayed, the writer 200 performs an input operation with the pen tip 201 on the latest entry display area 21a in which the drawing information 102 "CDE" is displayed. When the writer 200 touches at least a part of the entry display area 21 by hand within a predetermined time after the end, the operation mode switching processing unit 44 responds to the touch of the writer 200 and erases the target area 22. Is detected (see FIG. 13).

The erasure control unit 49 touches a setting area (set pixel portion) starting from the latest input coordinate (hereinafter, the latest input coordinate 24) of the coordinates of the drawing input coordinate information group "CDE" for the latest entry display area 21a. The detection area (hereinafter referred to as the narrowing-down / erasing target area 22a) is used to narrow down the erasing target area 22. In this case, in reality, it is difficult to think that the areas separated by 1/4 or more of the display size are erased. Therefore, for example, the set pixels are 480 pixels (1 of 1920 pixels) in the X direction with respect to the latest input coordinates. / 4), 270 pixels in the Y direction (1/4 of 1080 pixels). By setting the set pixels as the touch detection area (narrowed-down erase target area 22a) in the erase mode, the processing load of the system can be reduced and the processing followability can be not impaired.

As shown in FIG. 14, the erasure control unit 49 touch-detects the setting area "DE" starting from the latest input coordinate 24 among the coordinates of the drawing input coordinate information group "CDE" with respect to the latest entry display area 21a. The area (narrowing and erasing target area 22a) is set, and the erasing target area 22 is narrowed down. The erasure control unit 49 erases the drawing information 101 "DE" displayed in the narrowed-down erase target area 22a. As a result of the erasing process, the drawing information 100 displayed in the entry display area 21 becomes "ABC".

According to the above description, in the input display device 1 according to the first embodiment of the present invention, the input coordinate detection unit 42 is the coordinates of the position of the sensor group 12 that has detected the input of the writer 200 among the plurality of sensors 12. The first input coordinate information group representing each of the above is output (S101-Yes in FIG. 10). The shape determination unit 43 is formed from the first input coordinate information group by the drawing input coordinate information group "ABCDE" whose shape is represented by the pen tip 201 or the fingertip 203 of the writer 200 and the coordinates thereof. The shape to be formed is determined to be a hand-held input coordinate information group representing the hand 202 of the writer 200, and the judgment results representing them are output (S102 to S106, S109 in FIG. 10). In the drawing information generation unit 45, when the determination result of the shape determination unit 43 at least represents the drawing input coordinate information group “ABCDE” (S106-Yes in FIG. 10) (S109-No in FIG. 10), the drawing input coordinate information Based on the group "ABCDE", drawing information 100 representing the information input by the writer 200 to the display unit 11 is generated (S107 in FIG. 10) (S110 in FIG. 10). The display control unit 46 displays the drawing information 100 in the entry display area 21 including the coordinates of the drawing input coordinate information group “ABCDE” in the display area 20 of the display unit 11 (S107 in FIG. 10) (FIG. 10). S110). When the erasure input processing unit 47a receives the input of the writer 200 within a predetermined time after the input of the writer 200 is completed (S112-Yes in FIG. 11), the erasure input processing unit 47a of the plurality of sensors 12 of the writer 200 The second input coordinate information group representing the coordinates of the position of the sensor group 12 that detected the input is output. The erasure control unit 49 is displayed in the entry display area 21 when the erasure target area 22 including the coordinates of the second input coordinate information group overlaps at least a part of the entry display area 21 (S113-Yes in FIG. 11). Of the drawing information 100 "ABCDE", the drawing information 101 "DE" displayed in the erase target area 22 is erased (S115 to S118 in FIG. 11).

As described above, in the input display device 1 according to the first embodiment of the present invention, the writer 200 performs an input operation with the pen tip 201 or the fingertip 203 with the hand 202 on the entry display area 21 of the display unit 11. In this case, the drawing information is displayed in the entry display area 21 of the display unit 11 by the input operation. Therefore, when the writer 200 notices an error in the input operation, the writer 200 performs the input operation by touching the input operation by hand within a predetermined time after the input operation is completed. At this time, when the erasure target area 22 for the input operation within the predetermined time overlaps at least a part of the entry display area 21, the erasure target area of the drawing information 100 "ABCDE" displayed in the entry display area 21. The drawing information 101 "DE" displayed on 22 is erased. Therefore, according to the input display device 1 according to the first embodiment of the present invention, it is possible to cope with the situation where the writer 200 performs an input operation while performing a hand 202, and the writer 200 draws for an input error. Information 101 "DE" can be deleted immediately.

[Second Embodiment]
FIG. 11 is a diagram showing a configuration of an input display device 1 according to a second embodiment of the present invention. In the second embodiment, only the changes from the first embodiment will be described.

15 and 16 are diagrams for explaining the input display device 1 according to the second embodiment of the present invention.

As shown in FIG. 15, it is assumed that the writer 200 is performing an input operation (touchdown) on the display unit 11 with the fingertip 203. Next, as shown in FIG. 16, the writer 200 performed an input operation (touchdown) on the display unit 11 with the fingertip 203, but after the writer 200 stopped the input operation with the fingertip 203 (touch). Up), it is assumed that the writer 200 touches the display unit 11 with a plurality of fingers within a predetermined time. In this case, the erasure target area 22 is a circumscribed rectangular area of the entry display area 21 when the writer 200 touches with a plurality of fingers. In the erasing process, of the drawing information 100 "ABCDE" displayed in the entry display area 21, the drawing information 103 "E" displayed in the erasing target area 22 (external rectangular area) is erased (see FIG. 16). ).

FIG. 17 is a flowchart showing the process of step S113 of FIG. 11 when the writer 200 touches with five fingers. FIG. 18 shows a circumscribed rectangular area when the writer 200 touches with five fingers, and is a diagram for explaining the process of step S113 of FIG.

As shown in FIG. 18, for example, of the entry display area 21 in which the drawing information 100 "ABCDE" is displayed, the writer 200 is provided with respect to the latest entry display area 21a in which the drawing information 102 "CDE" is displayed. When the writer 200 touches with five fingers within a predetermined time after the input operation by the fingertip 203 is completed, the erasure input processing unit 47a of the touch recognition processing unit 47 touches the writer 200. It is assumed that the second input coordinate information group is output accordingly. At this time, the operation mode switching processing unit 44 detects five touch coordinates (second input coordinate information group) that are not adjacent to each other by five fingers (step S1131).

Next, the operation mode switching processing unit 44 sets X from the drawing storage area of the storage device 3 that stores the contents to be displayed on the display unit 11 with respect to the drawing input coordinate information group "ABCDE" of the latest entry display area 21a. The minimum coordinate value "RecMinX", the maximum value "RecMaxX", the minimum value "RecMinY" of the Y coordinate, and the maximum value "RecMaxY" are detected. Further, the operation mode switching processing unit 44 has a minimum value "MinX" of the X coordinate, a maximum value "MaxX", and a minimum value "MinY" of the Y coordinate for the five touch coordinates (second input coordinate information group). , The maximum value "MaxY" is detected (step S1132).

Next, the operation mode switching processing unit 44 is composed of five fingers based on the minimum value "MinX" of the X coordinate, the maximum value "MaxX", the minimum value "MinY" of the Y coordinate, and the maximum value "MaxY". Detects the circumscribed rectangular area to be created. That is, the circumscribing rectangular region 25 composed of the minimum value “MinX” of the X coordinate, the maximum value “MaxX”, the minimum value “MinY” of the Y coordinate, and the maximum value “MaxY” is detected (step S1134).

Next, the operation mode switching processing unit 44 determines whether or not the circumscribed rectangular area 25 within the predetermined time overlaps at least a part of the latest entry display area 21a (step S1133).

Here, as a condition, if RecMinX ≤ MinX ≤ RecMaxX and RecMinY ≤ MinY ≤ RecMaxY, or RecMinX ≤ MaxX ≤ RecMaxX and RecMinY ≤ MaxY ≤ RecMaxY, the circumscribed rectangular region 25 within a predetermined time is entered immediately. The display areas 21a overlap (step S1133-Yes). That is, in the process of step S113, S113-Yes. In this case, the operation mode switching processing unit 44 sets the tangent rectangular area 25 as the erasing target area 22 and turns on the erasing mode (step S114).

In the erasing mode (erasing process), the erasing control unit 49 displays the drawing information 103 "in the drawing information 100" ABCDE "displayed in the entry display area 21 in the erasing target area 22 (external rectangular area 25). Erasing "E" (see FIG. 18). As a result of the erasing process, the drawing information 100 displayed in the entry display area 21 becomes "ABCD".

On the other hand, under conditions other than the above, the circumscribed rectangular area 25 and the latest entry display area 21a within a predetermined time do not overlap (step S1133-No). That is, in the process of step S113, S113-No is obtained.

FIG. 19 is a flowchart showing the process of step S113 of FIG. 11 when the writer 200 touches with two fingers. FIG. 20 shows a circumscribed rectangular area when the writer 200 touches with two fingers, and is a diagram for explaining the process of step S113 of FIG.

As shown in FIG. 20, for example, of the entry display area 21 in which the drawing information 100 "ABCDE" is displayed, the writer 200 is provided with respect to the latest entry display area 21a in which the drawing information 102 "CDE" is displayed. When the writer 200 touches with two fingers within a predetermined time after the input operation by the fingertip 203 is completed, the erasure input processing unit 47a of the touch recognition processing unit 47 touches the writer 200. It is assumed that the second input coordinate information group is output accordingly. At this time, the operation mode switching processing unit 44 detects two touch coordinates (second input coordinate information group) that are not adjacent to each other by two fingers (step S1131).

Next, the operation mode switching processing unit 44 sets X from the drawing storage area of the storage device 3 that stores the contents to be displayed on the display unit 11 with respect to the drawing input coordinate information group "ABCDE" of the latest entry display area 21a. The minimum coordinate value "RecMinX", the maximum value "RecMaxX", the minimum value "RecMinY" of the Y coordinate, and the maximum value "RecMaxY" are detected. Further, the operation mode switching processing unit 44 has a minimum value "MinX" of the X coordinate, a maximum value "MaxX", and a minimum value "MinY" of the Y coordinate for the two touch coordinates (second input coordinate information group). , The maximum value "MaxY" is detected (step S1132).

Next, the operation mode switching processing unit 44 is composed of two fingers based on the minimum value "MinX" of the X coordinate, the maximum value "MaxX", the minimum value "MinY" of the Y coordinate, and the maximum value "MaxY". Detects the circumscribed rectangular area to be created. That is, the circumscribing rectangular region 26 composed of the minimum value “MinX” of the X coordinate, the maximum value “MaxX”, the minimum value “MinY” of the Y coordinate, and the maximum value “MaxY” is detected (step S1135).

Next, the operation mode switching processing unit 44 determines whether or not the circumscribed rectangular area 26 within the predetermined time overlaps at least a part of the latest entry display area 21a (step S1133).

Here, as a condition, if RecMinX ≤ MinX ≤ RecMaxX and RecMinY ≤ MinY ≤ RecMaxY, or RecMinX ≤ MaxX ≤ RecMaxX and RecMinY ≤ MaxY ≤ RecMaxY, the circumscribed rectangular region 26 within a predetermined time is entered immediately. The display areas 21a overlap (step S1133-Yes). That is, in the process of step S113, S113-Yes. In this case, the operation mode switching processing unit 44 sets the tangent rectangular area 26 as the erasing target area 22 and turns on the erasing mode (step S114).

In the erasing mode (erasing process), the erasing control unit 49 displays the drawing information 103 "in the erasing target area 22 (external rectangular area 26) of the drawing information 100" ABCDE "displayed in the entry display area 21. Erasing "E" (see FIG. 20). As a result of the erasing process, the drawing information 100 displayed in the entry display area 21 becomes "ABCD".

On the other hand, under conditions other than the above, the circumscribed rectangular area 26 and the latest entry display area 21a within a predetermined time do not overlap (step S1133-No). That is, in the process of step S113, S113-No is obtained.

According to the above description, in the input display device 1 according to the second embodiment of the present invention, the erasure target area 22 is a circumscribed rectangular area of the entry display area 21 when the writer 200 touches with a plurality of fingers. 25 and 26. When the erasure control unit 49 overlaps at least a part of the entry display area 21 (S113-Yes in FIG. 11), the erasure control unit 49 of the drawing information 100 “ABCDE” displayed in the entry display area 21. , Erase the drawing information 103 "E" displayed in the erase target area 22 (S115 to S118 in FIG. 11).

As described above, in the input display device 1 according to the second embodiment of the present invention, the writer 200 performs an input operation with the pen tip 201 or the fingertip 203 with the hand 202 on the entry display area 21 of the display unit 11. In this case, the drawing information is displayed in the entry display area 21 of the display unit 11 by the input operation. Therefore, when the writer 200 notices an error in the input operation, the writer 200 performs the input operation by touching the input operation by hand within a predetermined time after the input operation is completed. At this time, when the erasure target area 22 for the input operation within the predetermined time overlaps at least a part of the entry display area 21, the erasure target area of the drawing information 100 "ABCDE" displayed in the entry display area 21. The drawing information 103 "E" displayed on 22 is deleted. Therefore, according to the input display device 1 according to the second embodiment of the present invention, it is possible to cope with the situation where the writer 200 performs an input operation while performing a hand 202, and the writer 200 draws for an input error. Information 103 "E" can be deleted immediately.

[Third Embodiment]
FIG. 15 is a diagram showing a configuration of an input display device 1 according to a third embodiment of the present invention. In the third embodiment, only the changes from the first embodiment and the second embodiment will be described.

FIG. 21 is a diagram showing a configuration of an input display device 1 according to a third embodiment of the present invention.

The control device 4 includes a first shape determination unit 51 and a second shape determination unit 52 in place of the shape determination unit 43. These components will be described later.

22 and 23 are diagrams for explaining the input display device 1 according to the third embodiment of the present invention.

As shown in FIG. 22, it is assumed that the writer 200 has a hand 202 on the display unit 11 and is performing an input operation (pen down) with the pen tip 201. Next, as shown in FIG. 23, the writer 200 performed an input operation (pen down) with the pen tip 201 with a touch 202 on the display unit 11, but the writer 200 performed an input operation (pen down) with the pen tip 201. (Pen-up), and further, within a predetermined time after stopping the hand-touch 202, the writer 200 performs an input operation on the display unit 11 with the pen tip 201 or the fingertip 203 (finger tip 203 in FIG. 23) without the hand-touch 202. It is assumed that (pen down or touch down) has been performed. In the input display device 1 according to the third embodiment of the present invention, when the writer 200 performs an input operation on the display unit 11 without touching 202, the mode shifts to the erase mode.

24 and 25 are flowcharts showing the operation (input display processing) of the input display device 1 according to the third embodiment of the present invention.

Similar to the first embodiment, the input display process is divided into a drawing input determination mode (step S11), a drawing mode (step S12), an erasure input determination mode (step S13), and an erasure mode (step S14).

(Step S11; drawing input determination mode)
In the third embodiment, the same steps S101 to S106 as in the first embodiment are executed. Here, the first shape determination unit 51 has the same function as the shape determination unit 43 in the first embodiment. The third embodiment is different from the first embodiment in that the process returns to step S101 when the number of input of the determination result is “1” (step S104-Yes). Therefore, in the third embodiment, the process of step S109 in the first embodiment is not executed.

(Step S12; drawing mode)
In the third embodiment, the same steps S107 to S108 as in the first embodiment are executed. In the third embodiment, since the process of step S109 in the first embodiment is not executed, the processes of steps S110 and S111 in the first embodiment are not executed.

(Step S13; Erase input determination mode)
In step S112, since the erasure input processing unit 47a of the touch recognition processing unit 47 has completed the input by the writer 200, the writer 200 has a hand 202 on the display unit 11, and the input operation (pen down) by the pen tip 201 is performed. It is determined whether or not the writer 200 has performed an input operation (pen down or touch down) with the pen tip 201 or the fingertip 203 on the display unit 11 within a predetermined time after the completion. Here, if there is no input of the writer 200 within the predetermined time (step S112-No), the input display process ends. On the other hand, when the writer 200 performs an input operation (pen down or touch down) with the pen tip 201 or the fingertip 203 on the display unit 11 within a predetermined time without touching 202 (see FIG. 23) (step S112-). Yes), since there is a possibility of being erased, the erase input processing unit 47a represents the coordinates of the position of the sensor group 12 that has detected the input of the writer 200 among the plurality of sensors 12, respectively. Output the group. In this case, the input display process proceeds to step S301.

In step S301, the second shape determination unit 52 includes, from the second input coordinate information group, the erase input coordinate information group whose shape formed by the coordinates represents the pen tip 201 or the fingertip 203 (see FIG. 23). It is determined that the shape formed by the coordinates is the hand input coordinate information group representing the hand 202 of the writer 200, and the judgment result representing them is output. The erase input coordinate information group and the manual input coordinate information group are counted as one input, and the count value is reflected in the determination result as the number of inputs.

For example, when only the fingertip 203 is detected as the input of the writer 200, the determination result represents "1" as the number of inputs and "fingertip 203 (erasure input coordinate information group)" as the content thereof. When only the hand 202 is detected as the input of the entrant 200, the determination result represents "1" as the number of inputs and "hand 202 (hand input coordinate information group)" as the content thereof. When both the fingertip 203 and the hand 202 are detected as the input of the writer 200, the determination result represents "2" as the number of inputs, and the contents include "fingertip 203 (erasure input coordinate information group)" and , "Hand-held 202 (hand-held input coordinate information group)" is represented. After that, the input display process proceeds to step S302.

In step S302, the second shape determination unit 52 detects the size of the fingertip 203 and the hand 202, that is, the area of the shape formed by the erase input coordinate information group and the hand input coordinate information group. This detection (judgment) is represented by the minimum value "Xhmin" and the maximum value "Xhmax" of the X coordinate, the minimum value "Yhmin" and the maximum value "Yhmax" of the Y coordinate, as in FIGS. 8 and 9. .. After that, the input display process proceeds to step S303.

In step S303, the erasing mode transition processing unit 48 determines whether or not the number of inputs of the determination result of the second shape determination unit 52 is “1”. If the number of input of the determination result is "1" (step S303-Yes), the process proceeds to step S304. When the number of inputs of the determination result is not "1" (step S303-No), the input display process ends.

In step S304, the erasing mode transition processing unit 48 does not represent the content of the determination result of the second shape determination unit 52 as "handed 202 (handed input coordinate information group)", but "fingertip 203 (erased input coordinate information group)". ) ”Is shown only. When the content of the determination result represents "hand-made 202 (hand-made input coordinate information group)" (step S304-Yes), the input display process ends. When the content of the determination result does not represent "Hand 202 (Hand input coordinate information group)" but only "Fingertip 203 (Erase input coordinate information group)" (step S304-No), the erase mode transition processing unit 48 determines that the input is to erase the most recently input corresponding portion, and turns on the erase mode (step S114). That is, the operation mode for the display unit 11 is shifted from the erase input determination mode to the erase mode (step S14). In this case, the input display process proceeds to step S115.

(Step S14; Erase mode)
In the third embodiment, the same steps S115 to S118 as in the first embodiment are executed. In this case, as an erasure process, the erasure control unit 49 displays the drawing information displayed in the erasure target area 22 including the coordinates of the erasure input coordinate information group in the drawing information 100 "ABCDE" displayed in the entry display area 21. 103 “E” is erased (see FIG. 23). As a result of the erasing process, the drawing information 100 displayed in the entry display area 21 becomes "ABCD".

According to the above description, in the input display device 1 according to the third embodiment of the present invention, the input coordinate detection unit 42 is the coordinates of the position of the sensor group 12 that has detected the input of the writer 200 among the plurality of sensors 12. The first input coordinate information group representing each of the above is output (S101-Yes in FIG. 24). From the first input coordinate information group, the first shape determination unit 51 includes a drawing input coordinate information group "ABCDE" whose shape formed by the coordinates represents the pen tip 201 or the fingertip 203 of the writer 200, and its coordinates. The shape formed by the above is determined to be a hand input coordinate information group representing the hand 202 of the writer 200, and the judgment results representing them are output (S102 to S106 in FIG. 24). When the determination result of the first shape determination unit 51 represents both the drawing input coordinate information group "ABCDE" and the manual input coordinate information group (S106-Yes in FIG. 24), the drawing information generation unit 45 performs drawing input. Based on the coordinate information group "ABCDE", drawing information 100 representing the information input by the writer 200 is generated for the display unit 11 (S107 in FIG. 24). The display control unit 46 displays the drawing information 100 in the entry display area 21 including the coordinates of the drawing input coordinate information group “ABCDE” in the display area 20 of the display unit 11 (S107 in FIG. 24). When the erasure input processing unit 47a receives the input of the writer 200 within a predetermined time after the input of the writer 200 is completed (S112-Yes in FIG. 25), the erasure input processing unit 47a of the plurality of sensors 12 of the writer 200 A second input coordinate information group representing the coordinates of the position of the sensor group 12 that has detected the input is output. From the second input coordinate information group, the second shape determination unit 52 includes an erase input coordinate information group whose shape formed by the coordinates represents the pen tip 201 or the fingertip 203 of the writer 200, and a manual input coordinate information group. And output the determination results representing them (S301 to S304 in FIG. 25). When the determination result of the second shape determination unit 52 does not represent the manual input coordinate information group but represents only the erase input coordinate information group (S304-No in FIG. 25), the erase control unit 49 fills the entry display area 21. Of the displayed drawing information 100 "ABCDE", the drawing information 103 "E" displayed in the erase target area 27 including the coordinates of the erase input coordinate information group is erased (S115 to S118 in FIG. 25).

As described above, in the input display device 1 according to the third embodiment of the present invention, the writer 200 performs an input operation with the pen tip 201 or the fingertip 203 with the hand 202 on the entry display area 21 of the display unit 11. In this case, the drawing information is displayed in the entry display area 21 of the display unit 11 by the input operation. Therefore, when the writer 200 notices an error in the input operation, the writer 200 touches the entry display area 21 of the display unit 11 within a predetermined time after the input operation is completed 202. The input operation is performed with the pen tip 201 or the fingertip 203 without the pen tip 201. In this case, of the drawing information 100 "ABCDE" displayed in the entry display area 21, the drawing information 103 "E" displayed in the erasure target area 22 for the input operation within the predetermined time is erased. Therefore, according to the input display device 1 according to the third embodiment of the present invention, it is possible to cope with the situation where the writer 200 performs an input operation while performing a hand 202, and the writer 200 draws for an input error. Information 103 "E" can be deleted immediately.

As described above, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. That is, an embodiment obtained by combining technical means appropriately modified within the scope of the claims is also included in the technical scope of the present invention.

Further, in the above-described embodiment, in the first gist, the input display device includes a display unit, a plurality of sensors arranged on the display unit, and a sensor that detects the input of the writer among the plurality of sensors. From the input coordinate detection unit that outputs the first input coordinate information group that represents the coordinates of the position of the group and the first input coordinate information group, the shape formed by the coordinates is the pen tip or the fingertip of the writer. The shape determination unit that determines the drawing input coordinate information group representing the above and the hand input coordinate information group whose shape formed by the coordinates represents the hand of the writer, and outputs the determination result representing them, and the shape determination When the determination result of the unit represents at least the drawing input coordinate information group, drawing that generates drawing information representing the information input by the writer to the display unit based on the drawing input coordinate information group. After the input of the information generation unit, the display control unit that displays the drawing information in the entry display area including the coordinates of the drawing input coordinate information group in the display area of the display unit, and the input of the writer is completed. When there is an input of the writer within a predetermined time, an erasure input process for outputting a second input coordinate information group representing the position coordinates of the sensor group that has detected the input of the writer among the plurality of sensors. When the unit and the erasure target area including the coordinates of the second input coordinate information group overlap at least a part of the entry display area, the erasure target of the drawing information displayed in the entry display area. It may be characterized by including an erasing control unit for erasing the drawing information displayed in the area.

In the second gist of the present embodiment, in the input display device described in the first gist, the second input coordinate information group is detected when the writer touches the plurality of sensors by hand. Each of the coordinates of the position of the sensor group may be represented, and the erase target area may be a region touched by the writer by hand.

In the third gist of the present embodiment, in the input display device described in the first gist or the second gist, the erasure control unit uses the coordinates of the drawing information displayed in the entry display area. The set area starting from the latest input coordinate may be set as the erasure target area, and the drawing information displayed in the erasure target area may be erased.

In the fourth gist of the present embodiment, in the input display device described in the second gist, the erasure target area is a circumscribed circle of the entry display area when the writer touches with a plurality of fingers. It may be characterized by being a rectangular area.

In the fifth gist of the present embodiment, the input display device is the position of the display unit, a plurality of sensors arranged on the display unit, and the position of the sensor group that detects the input of the writer among the plurality of sensors. From the input coordinate detection unit that outputs the first input coordinate information group that represents the coordinates and the first input coordinate information group, the shape formed by the coordinates represents the pen tip or the fingertip of the writer. A first shape determination unit that determines a coordinate information group and a hand input coordinate information group whose shape formed by the coordinates represents the hand of the writer and outputs a determination result representing them, and the first shape determination. When the determination result of the unit represents both the drawing input coordinate information group and the manual input coordinate information group, the entry is input to the display unit based on the drawing input coordinate information group. A drawing information generation unit that generates drawing information that represents information, a display control unit that displays the drawing information in an entry display area that includes coordinates of the drawing input coordinate information group, and a display control unit that displays the drawing information in the display area of the display unit. When the writer's input is received within a predetermined time after the writer's input is completed, the second input representing the coordinates of the position of the sensor group that detected the writer's input among the plurality of sensors. The erase input processing unit that outputs the coordinate information group, the erase input coordinate information group whose shape formed by the coordinates represents the pen tip or the fingertip of the writer from the second input coordinate information group, and the touch The second shape determination unit that determines the input coordinate information group and outputs the determination result representing them, and the erase input coordinate information that the determination result of the second shape determination unit does not represent the manual input coordinate information group. When only the group is represented, the erase control unit that erases the drawing information displayed in the erase target area including the coordinates of the erase input coordinate information group among the drawing information displayed in the entry display area. It may be characterized by being provided.

The sixth gist of the present embodiment is an input display method using a device having a display unit and a plurality of sensors arranged on the display unit, and detects the input of the writer among the plurality of sensors. The step of outputting the first input coordinate information group representing the coordinates of the position of the sensor group, and the shape formed by the coordinates from the first input coordinate information group is the pen tip or the fingertip of the writer. A step of determining a drawing input coordinate information group to be represented and a hand input coordinate information group whose shape formed by the coordinates represents the hand of the writer, and outputting a judgment result representing them, and at least the judgment result is described above. When the drawing input coordinate information group is represented, a step of generating drawing information representing the information input by the writer to the display unit based on the drawing input coordinate information group and a display of the display unit. When there is a step of displaying the drawing information in the entry display area including the coordinates of the drawing input coordinate information group in the area and the input of the entry person within a predetermined time after the input of the entry person is completed. , A step of outputting a second input coordinate information group representing the coordinates of the position of the sensor group that detected the input of the writer among the plurality of sensors, and erasing including the coordinates of the second input coordinate information group. When the target area overlaps at least a part of the entry display area, the step of erasing the drawing information displayed in the erasure target area among the drawing information displayed in the entry display area is provided. It may be characterized by doing.

A seventh gist of the present embodiment is an input display method using a device having a display unit and a plurality of sensors arranged on the display unit, and detects an input of an entrant among the plurality of sensors. The step of outputting the first input coordinate information group representing the coordinates of the positions of the sensor groups, and the shape formed by the coordinates from the first input coordinate information group is the pen tip or the fingertip of the writer. A step of determining a drawing input coordinate information group to be represented and a hand input coordinate information group whose shape formed by the coordinates represents the hand of the writer, and outputting a first judgment result representing them, and the first judgment. When the result represents both the drawing input coordinate information group and the manual input coordinate information group, the information input by the writer to the display unit is represented based on the drawing input coordinate information group. The step of generating the drawing information, the step of displaying the drawing information in the entry display area including the coordinates of the drawing input coordinate information group in the display area of the display unit, and the input of the writer are completed. When there is an input of the writer within a predetermined time from, a step of outputting a second input coordinate information group representing the position coordinates of the sensor group that has detected the input of the writer among the plurality of sensors. From the second input coordinate information group, the erase input coordinate information group whose shape formed by the coordinates represents the pen tip or the fingertip of the writer and the manual input coordinate information group are determined, and these are determined. When the step of outputting the second determination result to be represented and the second determination result represent only the erase input coordinate information group without representing the manual input coordinate information group, the drawing displayed in the entry display area. It may be characterized by including a step of erasing the drawing information displayed in the erasure target area including the coordinates of the erasure input coordinate information group among the information.

1 ... Input display device,
2 ... Display device,
3 ... Storage device,
4 ... Control device,
11 ... Display (liquid crystal panel),
12 ... Sensor,
20 ... Display area,
21 ... Entry display area,
21a ... Most recent entry display area,
22 ... Area to be erased,
22a ... Area to be narrowed down and erased 23 ... Touch area,
24 ... Most recent input coordinates,
25 ... External rectangular area,
26 ... External rectangular area,
27 ... Area to be erased,
41 ... Sensor drive unit,
42 ... Input coordinate detector,
43 ... Shape determination unit,
44 ... Operation mode switching processing unit,
45 ... Drawing information generator,
46 ... Display control unit,
47 ... Touch recognition processing unit,
47a ... Erase input processing unit,
48 ... Erase mode transition processing unit,
49 ... Erase control unit,
51 ... First shape determination unit,
52 ... Second shape determination unit,
100 ... Drawing information,
101 ... Drawing information,
102 ... Drawing information,
103 ... Drawing information,
200 ... Filler,
201 ... Pen tip,
202 ... Hands-on
203 ... fingertips

Claims (4)

In an input display device including a display unit, an input detection unit, and a control unit,
The control unit
The drawing information is displayed on the display unit,
When the input of a plurality of positions is detected at the same time by the input detection unit, the rectangular area surrounded by the detected positions is detected as it is.
An input display device characterized by executing processing on drawing information that overlaps at least the rectangular area . The input display device according to claim 1, further comprising a drawing information generation unit that generates drawing information in response to drawing input by a pen tip or one fingertip from an input detection unit. The input display device according to claim 1 or 2, wherein the control unit executes a process of deleting the drawing information as the process. A control method in an input display device including a display unit and an input detection unit.
A step of displaying drawing information on the display unit and
When the input of a plurality of positions is detected at the same time by the input detection unit, the step of detecting the rectangular area surrounded by the detected positions as it is, and
A step of executing processing on drawing information that at least overlaps the rectangular area ,
A control method characterized by including.

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