CN115867880B - Display system and display method - Google Patents
Display system and display method Download PDFInfo
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- CN115867880B CN115867880B CN202080102649.8A CN202080102649A CN115867880B CN 115867880 B CN115867880 B CN 115867880B CN 202080102649 A CN202080102649 A CN 202080102649A CN 115867880 B CN115867880 B CN 115867880B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- General Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Position Input By Displaying (AREA)
Abstract
A display system (1) is provided with a projection type capacitive display device (10) and an input device (20), wherein the display device (10) is provided with a detection electrode group (101), and displays a display object corresponding to 1 st information inputted to the detection electrode group (101), and receives a touch operation via the detection electrode group (101), the input device (20) is provided with a device electrode group (201), and inputs 1 st information from the device electrode group (201) to the display device (10) in a state of being in contact with a receiving surface receiving the touch operation, the input device (20) transmits the 1 st information from the device electrode group (201) to the detection electrode group (101), and receives 2 nd information transmitted from the detection electrode group (101) through the device electrode group (201), and the display device (10) transmits 2 nd information from the detection electrode group (101), and receives the 1 st information through the detection electrode group (101).
Description
Technical Field
The present invention relates to a display system and a display method for displaying information input by a change in capacitance.
Background
There are projection type electrostatic capacity type touch panels that receive an operation on an input surface of a display device by utilizing a change in electrostatic capacity. The touch panel detects a change in capacitance at an electrode arranged at a contact portion among electrodes arranged in a matrix by contact of a human body with an input surface. Thus, the touch panel detects the position where the capacitance changes as the contact portion of the human body.
In the stamping system of patent document 1, an input device that inputs a voltage pulse signal to a touch panel changes the electric field intensity of an electric field that can reach the touch panel in a time-series manner in synchronization with the timing (timing) at which a touch is detected at the touch panel. Thus, the touch panel acquires data corresponding to the voltage pulse signal.
Patent document 1: japanese patent laid-open No. 2017-068793
Disclosure of Invention
However, in the technology of patent document 1, information can only be transmitted in the direction from the input device to the touch panel. Therefore, there is a problem in that bidirectional communication cannot be performed between the display device as the touch panel and the input device. In the case where the bidirectional communication is not possible, for example, when the display device detects contact of the input device, the display device cannot transmit a vibration instruction or the like to the input device, and thus, the operator of the input device cannot confirm that the display device has been in contact with the input device.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a display system capable of realizing bidirectional communication between an input device and a display apparatus.
In order to solve the above-described problems, the present invention provides a display system including a projection type capacitive display device having a 1 st electrode group including a plurality of 1 st electrodes, the display device displaying a display object corresponding to 1 st information inputted to the 1 st electrode group and receiving a touch operation via the 1 st electrode group. In addition, the display system of the present invention has an input device having a 2 nd electrode group constituted by a plurality of 2 nd electrodes, and the input device inputs 1 st information from the 2 nd electrode group to the display apparatus in a state of being in contact with a receiving surface that receives a touch operation. The input device transmits the 1 st information from the 2 nd electrode group to the 1 st electrode group, and receives the 2 nd information transmitted from the 1 st electrode group through the 2 nd electrode group. The display device transmits the 2 nd information from the 1 st electrode group to the 2 nd electrode group, and receives the 1 st information transmitted from the 2 nd electrode group through the 1 st electrode group.
ADVANTAGEOUS EFFECTS OF INVENTION
The display system according to the present invention achieves an effect of enabling bidirectional communication between an input device and a display apparatus.
Drawings
Fig. 1 is a block diagram showing a configuration of a display system according to an embodiment.
Fig. 2 is an oblique view showing the structure of the display system according to the embodiment.
Fig. 3 is a diagram showing a structure of a detection electrode group included in the display device according to the embodiment.
Fig. 4 is a diagram showing a structure of a device electrode group included in the input device according to the embodiment.
Fig. 5 is a flowchart showing a flow of processing of display processing performed by the display system according to the embodiment.
Fig. 6 is a diagram showing a structure of a device electrode group in the case where the input device according to the embodiment has the adsorbing portion.
Fig. 7 is a diagram showing an example of a hardware configuration of a display device according to an embodiment.
Detailed Description
Hereinafter, a display system and a display method according to an embodiment of the present invention will be described in detail with reference to the drawings.
Description of the embodiments
Fig. 1 is a block diagram showing a configuration of a display system according to an embodiment. Fig. 2 is an oblique view showing the structure of the display system according to the embodiment. The display system 1 has an input device 20 and a display apparatus 10. The X-axis and the Y-axis are 2 axes orthogonal to each other in a plane parallel to the upper surface of the display device 10. The axis orthogonal to the X axis and the Y axis is referred to as the Z axis. In the present embodiment, the X direction, the Y direction, and the Z direction are directions in the display device 10, and are not changed even when the display device 10 moves.
The display system 1 simultaneously performs the reception processing of the touch operation to the display apparatus 10 and the electrostatic capacitance communication between the input device 20 and the display apparatus 10. The capacitance communication is communication utilizing a change in capacitance between electrodes.
In addition, the display system 1 simultaneously performs a process of receiving information transmitted by the input device 20 by the display apparatus 10 and a process of receiving information transmitted by the display apparatus 10 by the input device 20.
The input device 20 is a device for inputting information to the display apparatus 10. The input device 20 is in contact with the display 14, which is a display screen of the display apparatus 10, to transmit and receive information to and from the display apparatus 10. The input device 20, if receiving information from the display apparatus 10, performs processing corresponding to the received information.
The input device 20 is brought into contact with the display 14 by the operator 40 of the display system 1 to overlap the display 14, and in a state of contact, information is transmitted to the display apparatus 10 and information transmitted from the display apparatus 10 is received. The input device 20 has a device electrode group 201 on the bottom surface side, and the bottom surface on which the device electrode group 201 is disposed overlaps so as to be in parallel contact with the surface on which the display 14 is disposed, so that information can be transmitted and received to and from the display device 10.
The display 14 has a rectangular display screen. In the following description, a rectangular region of a display screen will be described as a region surrounded by 2 sides parallel to the X direction and 2 sides parallel to the Y direction. Therefore, the display screen disposed on the upper surface of the display 14 is a plane parallel to the XY plane.
The operator 40 brings the input device 20 into contact with the information receiving surface, which is the display screen of the display 14, and performs an input operation of information via the display apparatus 10. In the display system 1, the display apparatus 10 displays various display objects according to the position of the input device 20 on the receiving surface and the type of the input device 20. In the display system 1, the display device 10 changes the display object according to the change in the orientation of the input device 20 on the receiving surface.
An example of a display object is a progress ring 51. Progress ring 51 visually displays the progress of the action. The progress ring 51 is displayed on the display screen of the display device 10 in an area outside the contact area between the bottom surface of the input apparatus 20 and the upper surface of the display device 10 (hereinafter, sometimes referred to as an object display area).
An example of the object display area is a circular ring-shaped area surrounding the contact area between the input device 20 and the display apparatus 10. The display of progress ring 51 changes according to the operation of input device 20. The input device 20 is operated by changing its position or direction of rotation on the receiving surface of the display 14.
The input device 20 detects the operation content if operated by the operator 40, and transmits information corresponding to the operation content to the display apparatus 10. The input device 20 has a shape that can be held by the operator 40. The input device 20 is, for example, cylindrical in shape with sides for the operator 40 to grasp. In addition, the input device 20 is overlapped by the operator 40 such that the bottom surface is in contact with the display screen of the display 14. The operator 40 rotates the input device 20 on the display screen about the column axis. That is, the input device 20 contacts the display 14 such that the column axis is parallel to the Z-axis direction and the bottom surface is parallel to the XY plane, and rotates in the contact surface. The input device 20 detects the rotation amount or the like on the display apparatus 10 as operation content and transmits the operation content to the display apparatus 10.
The rotation amount of the input device 20 on the display screen corresponds to, for example, an operation of a specific device (not shown) such as a machine tool. That is, by the rotation of the input device 20, a specific apparatus connected to the display apparatus 10 is operated. Further, the display apparatus 10 may also be operated by rotation of the input device 20. An example of the input device 20 is a dial that operates a specific apparatus.
The display device 10 is a projected capacitive touch panel. In the display apparatus 10, if the input device 20 is superimposed on the display screen, information is received from the input device 20, and a display object corresponding to the received information is displayed. The information received by the display apparatus 10 from the input device 20 is the 1 st information. Examples of the 1 st information are identification information and the like described later. The information received by the input device 20 from the display apparatus 10 is the 2 nd information. An example of the 2 nd information is vibration indication described later.
In addition, if the input device 20 moves, the display apparatus 10 displays information corresponding to the movement. Specifically, if the input device 20 is overlapped, the display apparatus 10 displays the progress ring 51 at the overlapped position. In addition, if the input device 20 is rotated, the display apparatus 10 transmits an instruction corresponding to the rotation amount to a specific apparatus, and changes the display of the progress ring 51 to a display corresponding to the rotation amount. For example, when the voltage value of the specific device is operated by the input device 20, the display device 10 notifies the specific device of the voltage value corresponding to the operation amount, that is, the rotation amount, and changes the display of the progress ring 51 so as to indicate the notified voltage value. In this way, the display apparatus 10 interactively expresses the progress ring 51 in accordance with the operation of the input device 20. In addition, if a touch operation is performed on the display device 10, a process corresponding to the touch operation is performed.
The input device 20 includes a waveform generation circuit 21, an input unit 22, a sensor 23, a vibration unit 24, and a device electrode group 201. The display device 10 includes a detection circuit 11, a data storage unit 12, a data processing unit 13, a display 14, and a display generation unit 15. In addition, the display 14 has a detection electrode group 101.
The sensor 23 detects that the input device 20 is in contact with the display apparatus 10 and the operation of the input device 20. In the case where the input device 20 is cylindrical, the sensor 23 detects the condition that the bottom surface of the input device 20 is in contact with the display screen and the rotation amount of the input device 20 on the display screen. The sensor 23 in this case is a contact sensor and an angle sensor.
The sensor 23, if detecting that the input device 20 is in contact with the display apparatus 10, transmits contact information indicating the contact to the input section 22. The sensor 23 transmits the detected rotation amount to the input unit 22. The input unit 22 inputs the contact information and the rotation amount transmitted from the sensor 23 to the waveform generation circuit 21. The rotation amount input to the waveform generation circuit 21 is device operation information described later.
The waveform generation circuit 21 is connected to the device electrode group 201. The waveform generation circuit 21 is a circuit that generates a voltage signal representing a pulse waveform, which is a voltage pulse signal shown by a waveform of a specific pattern, representing specific information. In addition, the waveform generation circuit 21 may also generate an 8-bit signal used in serial transmission instead of the voltage pulse signals represented by 0 and 1. The waveform generation circuit 21 generates a voltage pulse signal indicating identification information and a voltage pulse signal indicating device operation information if contact information is received.
The identification information is information identifying the input device 20. The device operation information is information on the operation of the input device 20. The device operation information includes information such as the rotation amount detected by the sensor 23. The waveform generation circuit 21, upon receiving the contact information from the input section 22, transmits the identification information as a voltage pulse signal to the device electrode group 201. In addition, the waveform generation circuit 21, upon receiving the rotation amount from the input section 22, transmits device operation information indicating the rotation amount as a voltage pulse signal to the device electrode group 201.
The device electrode group 201 is disposed on the bottom surface side of the input device 20. The device electrode group 201 is an electrode used for electrostatic capacitance communication with the display apparatus 10. The device electrode group 201 is constituted by a plurality of electrodes. The bottom surface of the input device 20 is a surface that contacts the upper surface of the display apparatus 10.
Each electrode of the device electrode group 201 transmits the voltage pulse signal generated by the waveform generation circuit 21. The electrodes of the device electrode group 201 can also receive the voltage pulse signal transmitted from the display device 10. The electrodes of a part of the device electrode group 201 transmit voltage pulse signals to the display apparatus 10, and the remaining electrodes receive voltage pulse signals from the display apparatus 10. Thereby, the device electrode group 201 simultaneously performs transmission and reception of the voltage pulse signal. Thus, the device electrode group 201 has a function of a transmitting antenna and a function of a receiving antenna.
An example of the voltage pulse signal received from the display apparatus 10 by the device electrode group 201 is a signal of a vibration instruction to vibrate the input device 20. The display apparatus 10 transmits a vibration instruction to the input device 20 upon receiving information from the input device 20. For example, if the display apparatus 10 detects that the input device 20 has been operated, a vibration instruction is transmitted to the input device 20. In addition, the display apparatus 10 may also send a vibration indication to the input device 20 if it detects that the bottom surface of the input device 20 has been in contact with the display 14. By the vibration of the input device 20, the operator 40 can confirm that information is being transmitted from the input device 20 to the display apparatus 10 or that the display apparatus 10 detects contact of the input device 20.
The vibration unit 24 performs a vibration function in response to a vibration instruction from the display device 10. That is, if the device electrode group 201 receives a vibration instruction, the vibration section 24 vibrates the input device 20.
The bottom surface of the input device 20 and the portion where the vibration portion 24 vibrates are connected via an elastic body such as a spring. Therefore, even if the vibration portion 24 vibrates the input device 20, the contact position between the bottom surface of the input device 20 and the upper surface of the display apparatus 10 does not shift.
The display 14 has a display screen for displaying information. The detection electrode group 101 is disposed in the display screen on the upper surface side of the display device 10. The detection electrode group 101 is an electrode used for touch operation and electrostatic capacitance communication with the input device 20. The detection electrode group 101 is constituted by a plurality of detection electrodes. For the detection electrode group 101, each detection electrode is arranged so that a specific capacitance is formed between adjacent detection electrodes. The capacitance between the detection electrodes of the detection electrode group 101 changes by overlapping the input device 20 with the display device 10. The capacitance between the detection electrodes of the detection electrode group 101 is changed by the operator 40 touching the display screen.
The detection circuit 11 is connected to the detection electrode group 101. The detection circuit 11 applies a voltage to the adjacent detection electrodes, and detects a change in electrostatic capacitance when the voltage is applied. If the input device 20 overlaps the display 14, the electrostatic capacitance of the portion overlapping the input device 20 among the detection electrodes included in the detection electrode group 101 changes. The detection circuit 11 detects the change in the capacitance to detect position and shape information, which is information of the position and shape of the input device 20. The positional shape information includes information of a position on the display screen when the input device 20 is overlapped with the display screen and information of a shape of the bottom surface of the input device 20. The detection circuit 11 causes the data storage unit 12 to store the detected position and shape information.
Further, if the operator 40 touches the display 14, the capacitance of the touched portion of the detection electrodes included in the detection electrode group 101 changes. The detection circuit 11 detects a change in the capacitance, thereby detecting a touch operation to the display 14. The detection circuit 11 transmits touch operation information indicating the detected touch operation to the data processing section 13.
In addition, an electrode of the region in contact with the input device 20 among the electrodes of the detection electrode group 101 is used for electrostatic capacitance communication. Some of the electrodes used for capacitance communication are electrodes for transmission, and the other electrodes are electrodes for reception.
Each electrode for transmission of electrostatic capacitance communication (hereinafter, referred to as an electrostatic transmitting electrode) included in the detection electrode group 101 transmits a voltage pulse signal generated by the data processing unit 13 or the like to the input device 20. Each electrode for receiving electrostatic capacitance communication (hereinafter, referred to as an electrostatic receiving electrode) included in the detection electrode group 101 receives a voltage pulse signal transmitted from the input device 20. Thereby, the detection electrode group 101 simultaneously performs transmission and reception of the voltage pulse signal. In this way, the detection electrode group 101 has a function of a transmission antenna and a function of a reception antenna.
The detection circuit 11 detects the identification information and the device operation information based on the voltage pulse signal transmitted from the input device 20 via the detection electrode group 101. The detection circuit 11 transmits the identification information and the device operation information to the data processing section 13.
The data processing unit 13 determines the progress ring 51 to be displayed based on the identification information. Correspondence information indicating the correspondence between the progress ring 51 and the identification information is stored in advance in the display device 10. The data processing unit 13 determines the progress ring 51 to be displayed based on the correspondence information and the identification information transmitted from the detection circuit 11. The data processing unit 13 transmits the determined progress ring 51 to the display generating unit 15. The data processing unit 13 reads the positional shape information from the data storage unit 12 and sends it to the display generating unit 15.
The data processing unit 13 generates a progress ring 51 with the display content changed based on the device operation information. The data processing unit 13 transmits the generated progress ring 51 to the display generating unit 15. The data processing unit 13 also transmits the touch operation information to the display generating unit 15.
The display generating unit 15 generates a display image indicating the progress ring 51 transmitted from the data processing unit 13. The display generation unit 15 causes the progress ring 51 to be displayed in the target display area, which is an area corresponding to the positional shape information, among the areas on the display screen of the display 14. The display generating unit 15 generates a display image corresponding to the touch operation information and displays the display image on the display screen. The display 14 displays the progress ring 51, a display screen corresponding to the touch operation information, and the like.
Fig. 3 is a diagram showing a structure of a detection electrode group included in the display device according to the embodiment. The detection electrode group 101 as the 1 st electrode group is arranged on the upper surface side of the display 14. Fig. 3 shows an example of the arrangement of the detection electrodes when the display 14 is viewed from the top surface side.
The detection electrode group 101 has an X electrode row in which a plurality of detection electrodes are arranged in common with X coordinates and a Y electrode row in which a plurality of detection electrodes are arranged in common with Y coordinates. The detection electrodes of the X electrode row are arranged in a direction parallel to the Y direction, and the detection electrodes of the Y electrode row are arranged in a direction parallel to the X direction. The detection electrode included in the detection electrode group 101 is the 1 st electrode.
Fig. 3 shows a case where the detection electrode group 101 has 10X electrode columns and 6Y electrode columns. The X coordinates of the X electrode columns are X1 to X10, and the Y coordinates of the Y electrode columns are Y1 to Y6.
The X electrode row with X1 coordinate is connected with 6 detection electrodes in series. Similarly, 6 detection electrodes are connected in series to each X electrode row having X2 to X10 as X coordinates. In addition, 11 detection electrodes are connected in series to a Y electrode row having a Y coordinate Y1. Similarly, 11 detection electrodes are connected in series to each Y electrode row having Y2 to Y6 as a Y coordinate.
The Z coordinates of the detection electrodes of the X electrode array are the same. The Z coordinates of the detection electrodes in the Y electrode row are the same. The X electrode row and the Y electrode row are arranged on different layers. That is, the Z-coordinate in which the X-electrode row is arranged and the Z-coordinate in which the Y-electrode row is arranged are different coordinates. A dielectric layer having a specific dielectric constant is disposed between the surface on which the X electrode row is disposed and the surface on which the Y electrode row is disposed.
The detection electrodes other than the region where the input device 20 is overlapped in the detection electrode group 101 are used for detection of a touch operation. For example, in the case where the detection electrode group 101 is observed from the upper surface, if a position of (X, Y) = (X5, Y3) is touched, the electrostatic capacitance of the position changes. The display device 10 detects the touch position by detecting the change in the capacitance. The display device 10 detects a change in capacitance at each Y electrode row when a voltage is applied to any X electrode row. The display device 10 applies a voltage to, for example, an X electrode row having an X coordinate of Xn (n is a natural number of 1 to 10). Then, the display device 10 determines whether or not the electrostatic capacitance has changed at the Y electrode row having the Y coordinate Ym (m is any natural number from 1 to 6).
When a voltage is applied to the X electrode row having the X1 coordinate, the display device 10 sequentially determines whether or not the electrostatic capacitance has changed for the Y electrode row having the Y1 coordinate to the Y electrode row having the Y6 coordinate. Similarly, when a voltage is applied to the X electrode row having the X2 coordinate, the display device 10 sequentially determines whether or not the capacitance has changed for the Y electrode row having the Y1 coordinate to the Y electrode row having the Y6 coordinate. In this way, the display device 10 sequentially applies voltages to the X electrode rows having X1 to X10, and sequentially determines whether or not the electrostatic capacitance has changed for the Y electrode row having Y1 to the Y electrode row having Y6 when a voltage is applied to the X electrode row having X n. Thus, the display device 10 can detect which position of the display 14 is touched. The order of application of voltages to the X electrode rows may be in any order. The determination of the change in capacitance at the Y electrode row may be performed in any order.
In addition, detection electrodes in a region (hereinafter, referred to as an electrostatic communication region) of the detection electrode group 101 where the input device 20 is overlapped are used for electrostatic capacitance communication. Part of the detection electrodes in the electrostatic communication region become electrostatic transmitting electrodes, and the rest become electrostatic receiving electrodes. The detection electrode serving as the electrostatic transmitting electrode transmits a voltage pulse signal to the input device 20, and the detection electrode serving as the electrostatic receiving electrode receives the voltage pulse signal from the input device 20. The electrostatic communication area in the area where the detection electrode group 101 is arranged is the 1 st area, and the touch detection area other than the electrostatic communication area, which will be described later, is the 2 nd area.
In the detection electrode group 101, any of the detection electrodes may be an electrostatic transmitting electrode, and any of the detection electrodes may be an electrostatic receiving electrode. In addition, the detection electrode in the electrostatic communication region may include an electrode which is not set as either the electrostatic transmitting electrode or the electrostatic receiving electrode.
Fig. 4 is a diagram showing a structure of a device electrode group included in the input device according to the embodiment. The device electrode group 201 as the 2 nd electrode group is arranged in a circular region on the bottom surface side of the input device 20. Fig. 4 shows an example of the arrangement of the device electrode group 201 in the case where the input device 20 is viewed from the bottom surface side. In fig. 4, 2 axes orthogonal to each other in a plane parallel to the bottom surface of the input device 20 are referred to as an a axis and a B axis. The axis perpendicular to the a axis and the B axis is defined as the C axis. In the present embodiment, the a direction, the B direction, and the C direction are directions in the input device 20, and do not change even when the input device 20 moves.
The device electrode group 201 has an a electrode row in which a plurality of detection electrodes are arranged in a common manner to the a coordinates and a B electrode row in which a plurality of detection electrodes are arranged in a common manner to the B coordinates. The detection electrodes of the A electrode row are arranged in a direction parallel to the B direction, and the detection electrodes of the B electrode row are arranged in a direction parallel to the A direction. The electrode included in the device electrode group 201 is the 2 nd electrode.
In fig. 4, a case is shown in which the device electrode group 201 has 2 a electrode columns and 2B electrode columns. The a coordinates of the a electrode row are A1 and A2, and the B coordinates of the B electrode row are B1 and B2.
The electrode columns a with a coordinates A1 and A2 are respectively connected with 3 electrodes in series. In addition, 3 electrodes are connected in series to each of the B electrode rows having B1 and B2 coordinates.
The C coordinates of the detection electrodes of the a electrode row are the same. The C coordinates of the detection electrodes of the B electrode row are the same. The A electrode row and the B electrode row are arranged on different layers. That is, the C coordinate in which the a electrode row is arranged and the C coordinate in which the B electrode row is arranged are different coordinates. A dielectric layer having a specific dielectric constant is disposed between the surface on which the A electrode row is disposed and the surface on which the B electrode row is disposed.
Each electrode of the device electrode group 201 is used for electrostatic capacitance communication. Part of the electrodes of the device electrode group 201 becomes transmitting electrodes, and the rest becomes receiving electrodes. The electrode serving as the transmitting electrode transmits a voltage pulse signal to the display device 10, and the electrode serving as the receiving electrode receives the voltage pulse signal from the display device 10.
In the device electrode group 201, any electrode may be a transmitting electrode, and any detecting electrode may be a receiving electrode. Among the electrodes included in the device electrode group 201, there may be an electrode which is not set as a transmitting electrode or a receiving electrode.
Fig. 5 is a flowchart showing a flow of processing of display processing performed by the display system according to the embodiment. The input device 20 is overlapped with the input screen of the display apparatus 10 by the operator 40 (step S10). Specifically, the bottom surface side of the input device 20 provided with the device electrode group 201 overlaps with the upper surface side of the display apparatus 10 provided with the detection electrode group 101.
The display device 10 detects position and shape information indicating the position and shape of the input device 20 on the display device 10 (step S20). In the display device 10, the detection electrode group 101 and the detection circuit 11 detect positional shape information. Specifically, the detection circuit 11 detects the positional shape information based on the X coordinate of the X electrode row to which the voltage is applied among the X electrode rows included in the detection electrode group 101 and the Y coordinate of the Y electrode row in which the electrostatic capacitance is changed among the Y electrode rows included in the detection electrode group 101.
The display device 10 stores the positional shape information (step S30). Specifically, the detection circuit 11 stores the position and shape information in the data storage unit 12.
The display device 10 sets the electrostatic communication area based on the positional shape information (step S40). Specifically, the detection circuit 11 sets the electrostatic communication area based on the positional shape information stored in the data storage unit 12. The detection circuit 11 sends the position and shape information to the data processing unit 13.
The display device 10 sets an electrostatic transmitting electrode and an electrostatic receiving electrode for the electrostatic communication area (step S50). Specifically, the data processing unit 13 sets a part of the detection electrodes included in the electrostatic communication area as electrostatic transmitting electrodes, and sets the remaining detection electrodes as electrostatic receiving electrodes.
The input device 20, if overlapping the display apparatus 10 to detect contact with the display apparatus 10, transmits identification information represented by a voltage pulse signal from the device electrode group 201 to the display apparatus 10 (step S60). Specifically, the sensor 23 detects that the input device 20 has been overlapped with the display apparatus 10, and the touch information indicating that the input unit 22 has been in contact with the display apparatus 10 is sent to the waveform generation circuit 21. The waveform generation circuit 21 generates a voltage pulse signal indicating identification information. The device electrode group 201 transmits the voltage pulse signal representing the identification information generated by the waveform generation circuit 21 to the display apparatus 10. In this case, the device electrode group 201 transmits a voltage pulse signal representing identification information from a detection electrode set as an electrostatic transmitting electrode among the electrodes.
The display device 10 receives identification information represented by the voltage pulse signal through the detection electrode group 101 (step S65). Specifically, the detection electrode group 101 receives a voltage pulse signal from a detection electrode set as an electrostatic receiving electrode among the detection electrodes. The electrostatic receiving electrode that receives the voltage pulse signal transmits the received voltage pulse signal to the detection circuit 11. The detection circuit 11 converts the voltage pulse signal into identification information.
The display device 10 displays a display object corresponding to the identification information (step S70). Specifically, the data processing unit 13 determines a display object, for example, the progress ring 51, based on correspondence information indicating correspondence between the display object and the identification information, and sends the determined display object to the display generating unit 15. The data processing unit 13 calculates the display position of the display object based on the position shape information, and sends the calculated display position to the display generating unit 15.
The display generating unit 15 generates a display image for displaying the display object at the display position based on the display object and the display position transmitted from the data processing unit 13. For example, the display generating unit 15 generates a display image for displaying a display object such as the progress ring 51 in an object display area which is an area corresponding to the positional shape information. The display 14 displays the progress ring 51 in the target display area by displaying the display screen generated by the display generating section 15.
The input device 20 determines whether or not it is operated (step S80). If the operator 40 does not operate the input device 20 (step S80, no), the input device 20 waits for the operation of the operator 40.
If the operator 40 operates the input device 20 (Yes at step S80), the input device 20 detects the operation content by the sensor 23, and transmits operation information indicating the operation content from the device electrode group 201 to the display apparatus 10 (step S90). The operation information includes information such as an operation direction of the input device 20 and an operation amount of the input device 20.
The display device 10 receives the operation information by detecting the electrostatic receiving electrode of the electrode group 101 (step S95). If the display device 10 receives the operation information, a vibration instruction is transmitted from the electrostatic transmitting electrode of the detection electrode group 101 through the detection circuit 11 (step S100). The vibration indication is received by the device electrode set 201 of the input device 20. The vibration portion 24 of the input device 20 vibrates the input device 20 in accordance with the vibration instruction.
If the display device 10 receives the operation information, it decides the interactive expression of the display object based on the operation information, and generates and displays a display image (step S110). The interactive expression is expressed by changing a display object being displayed to a display object corresponding to the operation information. For example, when the display object is the progress ring 51, the display device 10 changes the display mode of the progress ring 51 being displayed to the display mode corresponding to the operation information. That is, the display device 10 displays the progress ring 51 in a display manner that can be made aware of the operation information.
Specifically, the data processing unit 13 determines the display mode of the progress ring 51 after the operation, and sends the progress ring 51 of the determined display mode to the display generating unit 15. The display generating unit 15 generates a display image indicating the progress ring 51 transmitted from the data processing unit 13. The display generation unit 15 causes the progress ring 51 after the operation to be displayed in the target display area.
The display device 10 sets an area other than the electrostatic communication area as a touch detection area (step S120). The display device 10 operates the detection electrodes of the detection electrode group 101 and the detection circuit 11 corresponding to the touch detection region for touch detection.
The display device 10 sets an offset (offset) value of the capacitance change in the electrostatic communication area (step S130). Specifically, the detection circuit 11 sets the offset value in such a manner as to cancel the influence of the detection value of the capacitance change caused by the input device 20 coming into contact with the display apparatus 10 in the electrostatic communication area. In this case, the detection circuit 11 sets the offset value based on the positional shape information stored in the data storage section 12.
The detection circuit 11 sets an offset value based on, for example, a change in electrostatic capacitance detected in a state where the input device 20 is in contact with the display apparatus 10 in the electrostatic communication area. The detection circuit 11 may acquire an offset value from the input device 20. The detection circuit 11 may set the offset value based on the correspondence between the offset value and the identification information. In this case, the display device 10 stores a correspondence between the offset value and the identification information in advance, and the detection circuit 11 sets the offset value based on the correspondence and the identification information.
Then, the display device 10 determines whether or not a touch operation is performed on the touch detection area (step S140). If the operator 40 does not perform a touch operation on the touch detection area (step S140, no), the display device 10 does not change the display for the touch detection area, and waits for the touch operation.
If the operator 40 performs a touch operation on the touch detection area (Yes at step S140), the display device 10 performs a process corresponding to the touch operation (step S150). Specifically, if the detection circuit 11 receives a touch operation, the data processing unit 13 determines information to be displayed in the touch detection area. The information to be displayed in the touch detection area is information indicating the content of the touch operation. The display generation unit 15 causes the display 14 to display information indicating the content of the touch operation in the touch detection area. In addition, if the detection circuit 11 receives a touch operation, it transmits an instruction corresponding to the touch operation to the specific device as the operation target.
Further, the display system 1 may execute the processing of step S80 and the processing of step S140 simultaneously after the processing of step S130. That is, the display system 1, after setting the electrostatic communication area and the touch detection area, executes processing for determining whether or not the input device 20 is operated and processing for determining whether or not a touch operation is performed. Further, the display system 1 executes the processing of steps S90 to S130 when the input device 20 is operated, and executes the processing of step S150 when a touch operation is performed. The display system 1 performs the processing of steps S90 to S130 and the processing of step S150 in parallel.
That is, the display system 1 may also perform electrostatic capacitance communication and acceptance of touch panel operation simultaneously. In this case, the display system 1 may also perform bidirectional communication by performing transmission of information from the input device 20 to the display apparatus 10 by electrostatic capacitance communication and transmission of information from the display apparatus 10 to the input device 20 by electrostatic capacitance communication in parallel.
The processing in steps S120 and S130 may be performed at any timing as long as the processing is performed between the time after step S40 and the time before step S140.
The detection circuit 11 may calculate the position and shape information based on the position of the center of gravity of the input device 20 on the display 14 and information on the physical size of the bottom surface of the input device 20 (hereinafter referred to as bottom surface information). In this case, the detection circuit 11 detects the position and shape information of the input device 20 on the display 14 in advance, and calculates the barycentric position (X, Y coordinates) of the input device 20 on the display 14 from the approximate position and shape information.
The bottom surface information of the input device 20 is acquired from the input device 20 by the detection circuit 11. In this case, the waveform generation circuit 21 transmits the bottom surface information of the input device 20 to the display apparatus 10 together with the identification information.
The bottom surface information of the input device 20 may be stored in the display apparatus 10 in advance. In this case, the display apparatus 10 stores in advance correspondence information that associates the bottom surface information of the input device 20 with the identification information. Then, the detection circuit 11 acquires the bottom surface information based on the correspondence information and the identification information. The detection circuit 11 calculates position and shape information based on the acquired bottom surface information and the calculated center of gravity position.
The input device 20 may have an adsorption portion to be adsorbed to the display apparatus 10. Fig. 6 is a diagram showing a structure of a device electrode group in the case where the input device according to the embodiment has the adsorbing portion.
The device electrode group 201 having the adsorbing portion 31 is arranged at the same position as the device electrode group 201 shown in fig. 4. The electrodes included in the adsorbing portion 31 are electrodes arranged in the outer peripheral region of the circular region in the device electrode group 201. In the case of the device electrode group 201 shown in fig. 6, the electrodes included in the adsorbing portion 31 are the electrodes 30a to 30h. The adsorbing portion 31 is an adsorbing mechanism for adsorbing the display screen by an electrostatic force generated by applying a voltage to a detection electrode disposed in a specific region in the electrostatic communication region by the display device 10.
The display device 10 generates an electrostatic force in the suction portion 31 disposed on the bottom surface of the input device 20 by applying voltages of opposite phases between the electrodes included in the detection electrode group 101. That is, the display device 10 applies voltages of opposite phases between the electrodes of the detection electrode overlapping the adsorbing portion 31 among the detection electrodes overlapping the electrostatic communication region. Specifically, the display device 10 applies voltages of opposite phases between the electrodes of the detection electrodes disposed at positions opposed to the electrodes 30a to 30 h. Thereby, the adsorbing portion 31 adsorbs the input device 20 to the display device 10 by the potential difference with the display device 10.
For example, the display device 10 applies a positive voltage to the X electrode row having an X5 coordinate and applies a negative voltage to the Y electrode row having a Y4 coordinate, thereby generating an electrostatic force in the vicinity of an intersection between the X electrode row having an X5 coordinate and the Y electrode row having a Y4 coordinate when viewed from the Z direction. The position of the intersection is a position in the region where the electrodes 30a to 30h are arranged. The display device 10 generates electrostatic force by a potential difference of 80V at the position of (X, Y) = (X5, Y4) by applying 40V to the X electrode row having the X5 coordinate and applying-40V to the Y electrode row having the Y4 coordinate, for example. In this way, the display device 10 applies a voltage to the positions of the electrodes 30a to 30h serving as the adsorbing portions 31, thereby adsorbing the input device 20 to the display 14.
The electrodes other than the electrodes 30a to 30h in the electrode of the device electrode group 201, that is, the electrodes arranged in the central region 32 of the device electrode group 201 are used as the electrostatic transmitting electrodes or the electrostatic receiving electrodes. In the case of the device electrode group 201 shown in fig. 6, the electrodes used for electrostatic capacity communication are 4 electrodes arranged in the central region 32.
The outer peripheral region of the electrostatic communication region of the device electrode group 201, which becomes the adsorbing portion 31, has a higher dielectric constant than the central region 32.
The input device 20 is adsorbed to the display device 10 by the adsorbing portion 31, and even when the display device 10 stands vertically, that is, when the display screen is parallel to the vertical direction, the operation to the input device 20 is easy.
In addition, in the case where the input device 20 is moved away from the display device 10, the display device 10 applies a voltage opposite to that at the time of adsorption. This facilitates the attachment and detachment of the input device 20 to and from the display apparatus 10.
The display device 10 sequentially applies voltages to the electrodes 30a to 30h for a specific time, for example. In the display system 1, the electrode used for capacitance communication and the electrode used as the adsorbing portion 31 may be set separately, or the electrodes may be shared in a time-division manner at the time of capacitance communication and adsorbing.
Here, a hardware configuration of the display device 10 will be described. Fig. 7 is a diagram showing an example of a hardware configuration of a display device according to an embodiment.
The display device 10 can be realized by the processor 100, the memory 200, the output device 300, the display 14, and the detection circuit 11. Examples of processor 100 are a CPU (Central Processing Unit, also known as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, DSP (Digital Signal Processor)) or a system LSI (Large Scale Integration). Examples of memory 200 are RAM (Random Access Memory), ROM (Read Only Memory).
The display device 10 is realized by a display program that is read out by the processor 100, executes a program for executing the operations of the display device 10 stored in the memory 200, and is executable by a computer. The display program, which is a program for executing the operation of the display device 10, may be a flow or a method for causing a computer to execute the display device 10.
The display program executed by the display device 10 has a module structure including the data processing unit 13 and the display generating unit 15, and is loaded onto the main storage device, and is generated on the main storage device.
The display 14 has an interface 301 that transmits and receives information to and from the input device 20 and accepts touch operations. The interface 301 is configured using the detection electrode group 101.
The memory 200 is used as a temporary memory when various processes are performed by the processor 100. The memory 200 stores position and shape information and the like. The output device 300 outputs an instruction or the like corresponding to a touch operation to a specific device as an external device.
The display program may also be provided as a computer program product by being stored on a computer-readable storage medium in an installable format or a file in an installable format. The display program may be provided to the display device 10 via a network such as the internet. The functions of the display device 10 may be partially implemented by dedicated hardware such as a dedicated circuit, and partially implemented by software or firmware. The input device 20 can also be realized by the same hardware configuration as the display device 10.
The display device 10 may execute the processing of the detection circuit 11 by using the processor 100 and the memory 200 instead of the detection circuit 11.
Thus, in the embodiment, the input device 20 transmits information from the device electrode group 201 to the detection electrode group 101 by a voltage pulse signal, and receives information transmitted from the detection electrode group 101 by the voltage pulse signal by the device electrode group 201. In addition, the display apparatus 10 transmits information from the detection electrode group 101 to the device electrode group 201 by a voltage pulse signal, and receives information transmitted from the device electrode group 201 by the voltage pulse signal by the detection electrode group 101. Thereby, the display system 1 can realize bidirectional communication between the input device 20 and the display apparatus 10 as a touch panel.
In addition, the display apparatus 10 sets, as the electrostatic communication area, an area in contact with the input device 20, out of the areas where the detection electrode groups 101 are arranged. In addition, the display device 10 sets an area other than the static electricity communication area among the areas where the detection electrode groups 101 are arranged as a touch detection area that receives a touch operation. Thereby, the display device 10 can simultaneously perform the reception processing of the information in the electrostatic communication area and the reception processing of the touch operation in the touch detection area.
The configuration shown in the above embodiment is an example, and other known techniques may be combined, or the embodiments may be combined with each other, and a part of the configuration may be omitted or changed without departing from the scope of the present invention.
Description of the reference numerals
The display device comprises a display system 1, a display device 10, a detection circuit 11, a data storage part 12, a data processing part 13, a display 14, a display 15 generation part 20, an input device 21, a waveform generation circuit 22, a sensor 23, a vibration part 24, electrodes 30a to 30h, an adsorption part 31, a central area 32, an operator 40, a progress ring 51, a processor 100, a detection electrode group 101, a memory 200, a device electrode group 201, an output device 300 and an interface 301.
Claims (4)
1. A display system, comprising:
a projection type electrostatic capacity type display device having a 1 st electrode group constituted by a plurality of 1 st electrodes, and displaying a display object corresponding to 1 st information inputted to the 1 st electrode group, and receiving a touch operation via the 1 st electrode group; and
an input device having a 2 nd electrode group constituted by a plurality of 2 nd electrodes, and inputting the 1 st information from the 2 nd electrode group to the display device in a state of being in contact with a receiving surface that receives the touch operation,
the input device transmits the 1 st information from the 2 nd electrode group to the 1 st electrode group, and receives the 2 nd information transmitted from the 1 st electrode group through the 2 nd electrode group,
the display apparatus transmits the 2 nd information from the 1 st electrode group to the 2 nd electrode group and receives the 1 st information transmitted from the 2 nd electrode group through the 1 st electrode group, and the display apparatus sets a region in contact with the input device, of a region in which the 1 st electrode group is arranged, as a 1 st region in which the 1 st information is received and the 2 nd information is transmitted, and sets a region other than the 1 st region, of a region in which the 1 st electrode group is arranged, as a 2 nd region in which the touch operation is accepted, and simultaneously executes a receiving process of the 1 st information in the 1 st region and an accepting process of the touch operation in the 2 nd region.
2. The display system of claim 1, wherein the display system is configured to display the plurality of images,
the plurality of 1 st electrodes includes a 1 st receiving electrode that receives the 1 st information and a 1 st transmitting electrode that transmits the 2 nd information,
the plurality of 2 nd electrodes includes a 2 nd receiving electrode receiving the 2 nd information and a 2 nd transmitting electrode transmitting the 1 st information,
the display device performs a receiving process of the 1 st information by the 1 st receiving electrode and a transmitting process of the 2 nd information by the 1 st transmitting electrode,
the input device performs a receiving process of the 2 nd information by the 2 nd receiving electrode and a transmitting process of the 1 st information by the 2 nd transmitting electrode.
3. The display system according to claim 1 or 2, wherein,
the display apparatus causes the input device and the display apparatus to be attracted by applying a voltage to a region of a part of a contact region between the input device and the display apparatus.
4. A display method of displaying a display object by a display system, the display system having: a projection type electrostatic capacity type display device having a 1 st electrode group constituted by a plurality of 1 st electrodes, and which displays the display object corresponding to 1 st information inputted to the 1 st electrode group, and which accepts a touch operation via the 1 st electrode group; and an input device having a 2 nd electrode group constituted by a plurality of 2 nd electrodes, and inputting the 1 st information from the 2 nd electrode group to the display device in a state of being in contact with an accepting surface accepting the touch operation,
The display method is characterized by comprising the following steps:
a 1 st transmission/reception step in which, when the input device transmits the 1 st information from the 2 nd electrode group to the 1 st electrode group, the display device receives the 1 st information through the 1 st electrode group; and
a 2 nd transmitting/receiving step of receiving the 2 nd information through the 2 nd electrode group by the input device in a case where the display apparatus transmits the 2 nd information from the 1 st electrode group to the 2 nd electrode group,
the display apparatus sets a region in contact with the input device out of regions in which the 1 st electrode group is arranged as a 1 st region that receives the 1 st information and transmits the 2 nd information, and sets regions other than the 1 st region out of regions in which the 1 st electrode group is arranged as a 2 nd region that accepts the touch operation, and simultaneously executes a receiving process of the 1 st information in the 1 st region and an accepting process of the touch operation in the 2 nd region.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2020/044162 WO2022113253A1 (en) | 2020-11-27 | 2020-11-27 | Display system and display method |
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| CN115867880A CN115867880A (en) | 2023-03-28 |
| CN115867880B true CN115867880B (en) | 2023-08-25 |
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| JP (1) | JP6921359B1 (en) |
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| JP2003248540A (en) * | 2001-12-04 | 2003-09-05 | Japan Science & Technology Corp | Skin sensibility indication device |
| CN111527471A (en) * | 2018-07-12 | 2020-08-11 | 普瑞有限公司 | Input device with a handle movable on a capacitive detection surface and capacitive coupling means |
| JP6739692B1 (en) * | 2019-12-26 | 2020-08-12 | 三菱電機株式会社 | Tactile presentation control device, tactile presentation panel, tactile presentation touch panel, and tactile presentation touch display |
| JP6758547B1 (en) * | 2019-12-05 | 2020-09-23 | 三菱電機株式会社 | Tactile presentation panel, tactile presentation touch panel, tactile presentation touch display, and tactile presentation knob |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016071842A (en) * | 2014-09-26 | 2016-05-09 | パナソニックＩｐマネジメント株式会社 | Touch panel device, input device, and touch panel system |
| US11263421B2 (en) * | 2016-03-16 | 2022-03-01 | Texas Instruments Incorporated | Dual touch sensor architecture with XY-position and Z-force sensing for touch-on-surface button |
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2020
- 2020-11-27 WO PCT/JP2020/044162 patent/WO2022113253A1/en active Application Filing
- 2020-11-27 CN CN202080102649.8A patent/CN115867880B/en active Active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003248540A (en) * | 2001-12-04 | 2003-09-05 | Japan Science & Technology Corp | Skin sensibility indication device |
| CN111527471A (en) * | 2018-07-12 | 2020-08-11 | 普瑞有限公司 | Input device with a handle movable on a capacitive detection surface and capacitive coupling means |
| JP6758547B1 (en) * | 2019-12-05 | 2020-09-23 | 三菱電機株式会社 | Tactile presentation panel, tactile presentation touch panel, tactile presentation touch display, and tactile presentation knob |
| JP6739692B1 (en) * | 2019-12-26 | 2020-08-12 | 三菱電機株式会社 | Tactile presentation control device, tactile presentation panel, tactile presentation touch panel, and tactile presentation touch display |
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| Publication number | Publication date |
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| JPWO2022113253A1 (en) | 2022-06-02 |
| JP6921359B1 (en) | 2021-08-18 |
| WO2022113253A1 (en) | 2022-06-02 |
| CN115867880A (en) | 2023-03-28 |
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