JP2021057843A - Display unit, method for providing method of use, program, and image processing system - Google Patents

Abstract

To provide a display unit that can reduce functions that are not used by a user.SOLUTION: A display unit 2 identifies a user through external or internal authentication, and has a provision control unit 73 that provides a method for using functions that are used by the user at a frequency equal to or less than a predetermined value, based on function use history information in which whether the user uses functions is recorded for each of the functions.SELECTED DRAWING: Figure 1

Description

The present invention relates to a display device, a method of providing a method of use, a program, and an image processing system.

A display device that displays handwritten data with a pen or a finger on a touch panel is known. A display device equipped with a relatively large touch panel is arranged in a conference room or the like, and is shared by a plurality of users as an electronic blackboard or the like.

Since display devices are becoming more sophisticated and multifunctional, techniques for changing the functions that can be used according to the user have been devised (see, for example, Patent Document 1). Patent Document 1 discloses a display device that associates a user with each touch pen and changes the functions that can be used according to the touch pen used by the user.

However, the conventional technique has a problem that many functions are not used by the user. When the display device is shared, the user cannot always use it exclusively for himself / herself, so that functions that the user does not use are likely to occur. In addition, the user who uses the display device for the first time may not know the existence of the function.

In view of the above problems, an object of the present invention is to provide a display device or the like that can reduce functions that are not used by the user.

In view of the above problems, the present invention is a display device that identifies a user by external or internal authentication, and whether or not the user has used a function is based on the function usage history information recorded for each function. It is characterized by having a provision control unit that provides a usage method of a function whose frequency of use by a user is less than or equal to a predetermined value.

An object of the present invention is to provide a display device or the like that can reduce functions that are not used by the user.

It is a figure explaining the outline of the operation of the display device of this embodiment. This is an example of an overall configuration diagram of an image processing system. This is an example of a hardware configuration diagram of a display device. This is an example of the hardware configuration diagram of the account server. This is an example of a functional block diagram of a display device. It is a conceptual diagram of page data. It is a conceptual diagram which shows the stroke array data. It is a conceptual diagram which shows the coordinate array data. It is a conceptual diagram which shows the media data. It is a figure which shows the UI image (A), the stroke image (B), the output image (C), and the background image (D). This is an example of a function block diagram for explaining the functions of the account server by dividing them into blocks. It is a figure which shows typically the information stored in the authentication information DB. This is an example of a functional block diagram for explaining the functions of the display device related to the display control of the tutorial by dividing them into blocks. It is a figure which shows an example of the function use history table stored in the function use history DB. It is a figure which shows an example of the teaching material data stored in the teaching material data DB. It is a figure which shows an example of the tutorial provision setting screen. This is an example of a sequence diagram for explaining the procedure from login to updating the function usage rate. It is an example of the flowchart diagram explaining the process which a display device provides a tutorial. This is an example of a flowchart that determines the order in which tutorials are provided for functions that the user has never used and for which tutorials are not provided. This is an example of a flowchart showing a procedure for determining a function in which the provision control unit continuously provides a tutorial. It is a figure which shows the display example of the tutorial displayed on the display of a display device. This is an example of an icon list including an icon that calls a function with a high function usage rate. This is an example of a flowchart showing a procedure in which the display control unit displays a function call icon. It is a figure which shows the other configuration example of a display device. It is a figure which shows the other configuration example of a display device. It is a figure which shows the other configuration example of a display device. It is a figure which shows the other configuration example of a display device.

Hereinafter, as an example of a mode for carrying out the present invention, a display device and a method of providing a usage method performed by the display device will be described.

<Outline of operation of display device>
FIG. 1 is a diagram illustrating an outline of the operation of the display device 2 of the present embodiment. A display device 2 is installed in a conference room or the like, and the display device 2 is shared by a plurality of users.

(1) A user who mainly operates the display device 2 such as a presenter logs in to the display device 2. Login is an authentication act to access system resources using pre-registered account information when using various services on a computer or the Internet. Authentication means that the display device 2 or the like determines whether or not the user is a legitimate authority. If the authentication is successful, the user can log in to the display device 2. Account information includes, but is not limited to, user ID and password, IC card number, biometric authentication information, and the like.

(2) When the user logs in, the display device 2 displays a tutorial of the function that the user does not use frequently. A tutorial is a teaching material for the user to learn basic operation methods such as application software. Since the display device 2 records the functions used for each user and whether or not the tutorial is provided in the function usage history table (an example of the function usage history information) described later, the user has never used it and provided it. You can view tutorials on features that you have never seen before.

(3) The display device 2 displays the tutorial determined based on the function usage history table to the logged-in user. For example, the contents of the functions that can be selected with the icons on the screen are displayed as characters and images (including moving images).

By following the tutorial and pressing the icon, the user can try out the functions that are rarely used. Since the user has just logged in, they can use the same icon provided by the tutorial within the meeting, making it easier to remember the features. As described above, the display device 2 of the present embodiment can reduce the functions that the user does not use.

<Terminology>
Function is a unique role of each factor that is related to each other and constitutes the whole. For example, a process executed by an icon, a button (soft key), a switch (hard key), or the like of a display device can be mentioned. The tutorial provision unit and the function may have a one-to-one correspondence, or one tutorial may cover a plurality of functions.

The frequency used by the user is the degree to which the same function is used. The frequency may be calculated by indicators such as the number of times and the rate, but is not limited to these.

How to use a function is how to use the function, and it is information in a format that can be understood by humans. Also called an operation method. In this embodiment, the term tutorial will be used. It may be called a manual, a guide, a help, an instruction manual, or the like.

<System overview>
FIG. 2 is an overall configuration diagram of the image processing system 1 of the present embodiment. In addition, in FIG. 2, for simplification of the description, only two display devices 2a and 2b and the electronic pens 4a and 4b associated therewith are shown, and three or more display devices and electronic devices are shown. You may use a pen or the like.

As shown in FIG. 2, the image processing system 1 includes a plurality of display devices 2a and 2b, a plurality of electronic pens 4a and 4b, a USB memory 5a and 5b, a notebook PC (Personal Computer) 6a and 6b, and a television (Personal Computer) 6a and 6b. Video) It has conference terminals 7a, 7b, and a PC8. Further, the display devices 2a and 2b and the PC 8 are connected so as to be able to communicate with each other via the communication network 9. Further, the plurality of display devices 2a and 2b are provided with displays 3a and 3b, respectively, and the display device 2a is provided with an event caused by the electronic pen 4a (the pen tip of the electronic pen 4a on the display 3a or the pen tip of the electronic pen 4a on the display 3a). The image drawn by the touch of the pen tip of the electronic pen 4a) can be displayed on the display 3a. In addition to the electronic pen 4a, the image displayed on the display 3a can be changed based on an event (gestures such as enlargement, reduction, page turning, etc.) caused by a hand Ha or the like including the user's finger. it can.

Further, a USB memory 5a can be connected to the display device 2a, the display device 2a reads an electronic file such as a PDF from the USB memory 5a, and the display device 2a records an electronic file in the USB memory 5a. Can be done. Further, the display device 2a is connected to the display device 2a via a cable 10a1 capable of communicating according to standards such as DisplayPort, DVI (Digital Visual Interface), HDMI (registered trademark. High-Definition Multimedia Interface) and VGA (Video Graphics Array). PC6a is connected. Then, the display device 2a generates an event by touching the display 3a, and transmits the event information indicating the event to the notebook PC 6a in the same manner as the event from the input device such as a mouse or a keyboard. Similarly, a television (video) conference terminal 7a is connected to the display device 2a via a cable 10a2 capable of communicating according to the above standard. The notebook PC 6a and the video conferencing terminal 7a may communicate with the display device 2a by wireless communication compliant with various wireless communication protocols such as Bluetooth (registered trademark).

On the other hand, at other bases where the display device 2b is installed, similarly to the above, the display device 2b equipped with the display 3b, the electronic pen 4b, the USB memory 5b, the notebook PC 6b, the video conferencing terminal 7b, the cable 10b1, and the cable 10b2. Is used. Further, the image displayed on the display 3b can be changed based on the event generated by the user's hand Hb or the like.

As a result, the image drawn on the display 3a of the display device 2a at one base is also displayed on the display 3b of the display device 2b at the other base, and conversely, on the display 3b of the display device 2b at the other base. The image drawn in is displayed on the display 3a of the display device 2a at one base. As described above, since the image processing system 1 can perform remote sharing processing for sharing the same image at a remote location, it is very convenient to use it for a conference or the like at a remote location.

In the following, when an arbitrary display device among a plurality of display devices is indicated, it is referred to as "display device 2". When indicating an arbitrary display among a plurality of displays, it is indicated as "display 3". When indicating an arbitrary electronic pen among a plurality of electronic pens, it is indicated as "electronic pen 4". When indicating an arbitrary USB memory among a plurality of USB memories, it is indicated as "USB memory 5". When indicating an arbitrary notebook PC among a plurality of notebook PCs, it is indicated as "notebook PC 6". When indicating an arbitrary video conferencing terminal among a plurality of video conferencing terminals, it is indicated as "video conferencing terminal 7". Further, when indicating an arbitrary hand among the hands of a plurality of users, it is indicated as "hand H". When indicating an arbitrary cable among a plurality of cables, it is indicated as "cable 10".

Further, in the present embodiment, an electronic blackboard will be described as an example of a display device, but the present invention is not limited to this, and other examples of the display device are used in electronic signage (digital signage), sports, weather forecasts, and the like. It may be a telestatator, a remote image (video) diagnostic device, or the like. Further, the notebook PC 6 will be described as an example of the information processing terminal, but the present invention is not limited to this, and other examples of the information processing terminal include a desktop PC, a tablet PC, a PDA, a digital video camera, a digital camera, and a game. It may be a terminal capable of supplying an image frame such as a machine. Further, the communication network includes the Internet, a LAN (Local Area Network), a mobile phone communication network, and the like. Further, in the present embodiment, the USB memory will be described as an example of the recording medium, but the present invention is not limited to this, and various recording media such as an SD card may be used as another example of the recording medium.

An account server 8 is connected to the communication network 9. The account server 8 is a server that manages user accounts. An LDAP (Lightweight Directory Access Protocol) server is an example of the account server 8. LDAP is a protocol for connecting to a directory service that manages information such as network devices and users. A directory service is a service that centrally manages various information existing in a network and provides functions such as search. The client (display device 2 in this embodiment) connects to the LDAP server using TCP port 389 (default port number), and is composed of attributes (department, personal name, etc. in the case of an in-house list). Perform operations such as searching, adding, deleting, and modifying entries (groups of related attributes).

For example, if the user IDs and passwords of a plurality of services are collectively registered as attributes of one user ID, each service can perform authentication work by referring only to the LDAP server. Since the administrator can also manage the information centrally, it is possible to reduce the trouble of changing the user information in each service directory.

LDAP servers include open software such as OpenLDAP and commercial software represented by Microsoft's Active Directory®.

<Hardware configuration of display device>
Subsequently, the hardware configuration of the display device of the present embodiment will be described with reference to FIG. Note that FIG. 3 is a hardware configuration diagram of the display device.

As shown in FIG. 3, the display device 2 is a CPU 101 that controls the operation of the entire display device 2, a ROM 102 that stores a program used to drive the CPU 101 such as an IPL, and a RAM 103 that is used as a work area of the CPU 101. , SSD 204 for storing various data such as programs for the display device 2, network controller 105 for controlling communication with the communication network 9, and external storage controller 106 for controlling communication with the USB memory 5.

Further, the display device 2 displays a capture device 111 that displays video information as a still image or a moving image on the display of the notebook PC 6, a GPU (Graphics Processing Unit) 112 that specializes in graphics, and an output image from the GPU. A display controller 113 that controls and manages a screen display for output to 3 or a video conference terminal 7 is provided.

Further, the display device 2 includes a sensor controller 114 that controls the processing of the contact sensor 115, and a contact sensor 115 that detects that the electronic pen 4 or the user's hand H or the like touches the display 3. The contact sensor 115 inputs coordinates and detects coordinates by an infrared blocking method. In the method of inputting the coordinates and detecting the coordinates, two light receiving and emitting devices installed at both upper ends of the display 3 radiate a plurality of infrared rays in parallel with the display 3 and are provided around the display 3. This is a method of receiving light that is reflected by a reflecting member and returns on the same optical path as the light path emitted by the light receiving element. The contact sensor 115 outputs an infrared ID (Identification) emitted by two light emitting / receiving devices blocked by the object to the sensor controller 114, and the sensor controller 114 identifies a coordinate position which is a contact position of the object. All the IDs shown below are examples of identification information.

Further, the contact sensor 115 is not limited to the infrared blocking method, but is a touch panel of the capacitance type that identifies the contact position by detecting a change in capacitance, and the contact position is determined by a voltage change of two opposing resistance films. Various detection means such as a touch panel of the resistance film type to be specified and a touch panel of the electromagnetic induction type which detects the electromagnetic induction generated by the contact object coming into contact with the display unit and specifies the contact position may be used.

Further, the display device 2 includes an electronic pen controller 116. The electronic pen controller 116 communicates with the electronic pen 4 to determine whether or not there is a touch of the pen tip or a touch of the pen tip on the display 3. The electronic pen controller 116 may determine whether or not there is a touch not only on the pen tip and pen end of the electronic pen 4 but also on the portion held by the user of the electronic pen 4 and other electronic pen portions.

Further, the display device 2 includes the CPU 101, ROM 102, RAM 103, SSD 104, network controller 105, external storage controller 106, capture device 111, GPU 112, sensor controller 114, and electronic pen controller 116 as shown in FIG. It is provided with a bus line 120 such as an address bus and a data bus for electrically connecting.

The program for the display device 2 may be recorded on a computer-readable recording medium such as a CD-ROM and distributed.

<Example of account server hardware configuration>
FIG. 4 is a hardware configuration diagram of the account server 8. The account server 8 is constructed by a computer, and as shown in FIG. 4, the CPU 501, ROM 502, RAM 503, HD 504, HDD (Hard Disk Drive) controller 505, display 506, and external device connection I / F (Interface). ) 508, network I / F 509, bus line 510, controller 511, pointing device 512, DVD-RW (Digital Versatile Disk Rewritable) drive 514, media I / F 516.

Of these, the CPU 501 controls the operation of the entire account server 8. The ROM 502 stores a program used to drive the CPU 501 such as an IPL. The RAM 503 is used as a work area of the CPU 501. The HD504 stores various data such as programs. The HDD controller 505 controls reading or writing of various data to the HD 504 according to the control of the CPU 501. The display 506 displays various information such as cursors, menus, windows, characters, or images. The external device connection I / F 508 is an interface for connecting various external devices. The external device in this case is, for example, a USB (Universal Serial Bus) memory, a printer, or the like. The network I / F 509 is an interface for performing data communication using the communication network 9. The bus line 510 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 501 shown in FIG.

Further, the keyboard 511 is a kind of input means including a plurality of keys for inputting characters, numerical values, various instructions and the like. The pointing device 512 is a kind of input means for selecting and executing various instructions, selecting a processing target, moving a cursor, and the like. The DVD-RW drive 514 controls reading or writing of various data to the DVD-RW 513 as an example of the removable recording medium. In addition, it is not limited to DVD-RW, and may be DVD-R or the like. The media I / F 516 controls reading or writing (storage) of data to a recording medium 515 such as a flash memory.

<Functional configuration of display device>
Subsequently, the functional configuration of the display device 2 will be described with reference to FIGS. 5 to 10. First, the overall functional configuration of the display device 2 will be described with reference to FIG. FIG. 5 is a functional block diagram of the display device 2.

The display device 2 has each functional configuration shown in FIG. 5 according to the hardware configuration and program shown in FIG. The display device 2 can be a "sponsoring device" that first starts the remote sharing process, and can also be a "participating device" that later participates in the remote sharing process that has already been started. Further, the display device 2 is roughly divided into both a client unit 20 and a server unit 90. The client unit 20 and the server unit 90 are functions realized in one housing of the display device 2. When the display device 2 serves as the host device, the client unit 20 and the server unit 90 are realized in the display device 2. Further, when the display device 2 becomes a participating device, the client unit 20 is realized in the display device 2, but the server unit 90 is not realized. That is, in FIG. 2, when the display device 2a is the host device and the display device 2b is the participating device, the client unit 20 of the display device 2a is via the server unit 90 realized in the same display device 2a. Communicates with the client unit 20 of the display device 2b. On the other hand, the client unit 20 of the display device 2b communicates with the client unit of the other display device 2a via the server unit 90 realized in the other display device 2a.

<< Functional configuration of client section >>
Subsequently, the functional configuration of the client unit 20 will be described mainly with reference to FIG. The client unit 20 includes a video acquisition unit 21, a coordinate detection unit 22, an automatic adjustment unit 23, a contact detection unit 24, an event distribution unit 25, an operation processing unit 26, a gesture processing unit 27, an image superimposing unit 28, and an image processing unit 30. , And a communication control unit 60.

Of these, the video acquisition unit 21 acquires the output video of the video output device connected to the cable 10. When the image acquisition unit 21 receives an image signal from the image output device, the image acquisition unit 21 analyzes the image signal, updates the resolution of the image frame which is the display image of the image output device formed by the image signal, and updates the image frame. Image information such as frequency is derived and output to the image acquisition unit 31.

The coordinate detection unit 22 detects the coordinate position of an event (such as an action in which the user's hand H is touched on the display 3) generated by the user on the display 3. The coordinate detection unit 22 also detects the touched area.

The automatic adjustment unit 23 is activated when the display device 2 is activated, and adjusts the image processing parameters of the sensor camera in the optical sensor method of the contact sensor 115 so that the contact sensor 115 can output an appropriate value to the coordinate detection unit 22. To do.

The contact detection unit 24 detects an event (such as an operation in which the pen tip of the electronic pen 4 or the pen tail of the electronic pen 4 is pressed (touched) on the display 3) caused by the user.

The event distribution unit 25 distributes the coordinate position of the event detected by the coordinate detection unit 22 and the detection result detected by the contact detection unit 24 into each event of stroke drawing, UI operation, and gesture operation.

Here, in the "stroke drawing", when the stroke image (B) shown in FIG. 10 is displayed on the display 3, the user presses the electronic pen 4 on the display 3, and this pressing is performed. This is an event in which the electronic pen 4 is moved in this state, and finally the electronic pen 4 is released from the display 3. By this stroke drawing, for example, the alphabets "S" and "T" are drawn on the display 3. Note that this "stroke drawing" includes not only drawing an image, but also an event of deleting an already drawn image or editing the drawn image.

The "UI operation" is an event in which the user presses a predetermined position with the electronic pen 4 or the hand H when the UI image (A) shown in FIG. 10 is displayed on the display 3. .. By this UI operation, for example, the color and width of the line drawn by the electronic pen 4 are set.

The "gesture operation" is an event in which the user touches or moves on the display 3 with his / her hand H when the stroke image (B) shown in FIG. 10 is displayed on the display 3. is there. By this gesture operation, for example, by moving the hand H while the user touches the hand H on the display 3, the image can be enlarged (or reduced), the display area can be changed, the page can be switched, and the like. it can.

The operation processing unit 26 executes various operations according to the elements of the UI in which the event has occurred from those determined to be UI operations by the event distribution unit 25. Elements of this UI include, for example, buttons, lists, checkboxes, and text boxes.
The gesture processing unit 27 executes an operation corresponding to the gesture operation determined by the event distribution unit 25.

The image superimposing unit 28 displays the image superimposed by the display superimposing unit 36, which will be described later, as an image on the image output device (display 3 or the like). Further, the video superimposing unit 28 pictures-in-pictures the video sent from another video output device (video conference terminal 7 or the like) with respect to the video from the video output device (notebook PC 6 or the like). Further, the image superimposing unit 28 switches to display the image that has been picture-in-pictured and displayed on a part of the display 3 on the entire display 3.

The image processing unit 30 performs superimposition processing of each image layer as shown in FIG. The image processing unit 30 includes an image acquisition unit 31, a stroke processing unit 32, a UI image generation unit 33, a background generation unit 34, a layout management unit 35, a display superimposition unit 36, a page processing unit 37, a file processing unit 40, and page data. It has a storage unit 300 and a remote license management table 310.

Of these, the image acquisition unit 31 acquires each frame as an image from the image acquired by the image acquisition unit 21. The image acquisition unit 31 outputs the data of this image to the page processing unit 37. This image corresponds to the output image (C) from the video output device (notebook PC 6 or the like) shown in FIG.

The stroke processing unit 32 draws an image, deletes the drawn image, and edits the drawn image based on the event related to the stroke drawing assigned by the event distribution unit 25. The image obtained by drawing the stroke corresponds to the stroke image (B) shown in FIG. Further, each result of drawing, deleting, and editing the image based on the stroke drawing is stored in the operation data storage unit 840 as the operation data described later.

The UI image generation unit 33 generates a UI (user interface) image preset in the display device 2. This UI image corresponds to the UI image (A) shown in FIG.

The background generation unit 34 receives the media data of the page data read from the page data storage unit 300 by the page processing unit 37 from the page processing unit 37. The background generation unit 34 outputs the received media data to the display superimposition unit 36. Further, the image based on this media data corresponds to the background image (D) shown in FIG. The pattern of the background image (D) is a solid color, a grid display, or the like.

The layout management unit 35 provides the display superimposition unit 36 with layout information indicating the layout of each image output from the image acquisition unit 31, the stroke processing unit 32, and the UI image generation unit 33 (or the background generation unit 34). I manage it. As a result, the layout management unit 35 causes the display superimposition unit 36 to display the output image (C) and the stroke image (B) at which position in the UI image (A) and the background image (D). You can instruct whether to hide it.

Based on the layout information output from the layout management unit 35, the display superimposition unit 36 arranges the layout of each image output from the image acquisition unit 31, the stroke processing unit 32, and the UI image generation unit 33 (background generation unit 34). Do.

The page processing unit 37 collects the data of the stroke image (B) and the data of the output image (C) into one page data and stores it in the page data storage unit 300. The data of the stroke image (B) forms a part of the page data as the stroke array data (each stroke data) indicated by the stroke array data ID shown in FIG. The data of the output image (C) forms a part of the page data as the media data indicated by the media data ID shown in FIG. Then, when this media data is read from the page data storage unit 300, it is treated as the data of the background image (D).

Further, the page processing unit 37 transmits the media data of the page data once stored to the display superimposition unit 36 via the background generation unit 34, so that the video superimposition unit 28 displays the background image (D). It can be redisplayed in 3. Further, the page processing unit 37 can return the stroke array data (each stroke data) of the page data to the stroke processing unit 32 so that the stroke can be re-edited. Further, the page processing unit 37 can also delete or duplicate the page data.

That is, the data of the output image (C) displayed on the display 3 at the time when the page processing unit 37 stores the page data in the page data storage unit 300 is temporarily stored in the page data storage unit 300, and then stored in the page data storage unit 300. When it is read from the page data storage unit 300, it is read as media data indicating the background image (D). Then, the page processing unit 37 outputs the stroke array data indicating the stroke image (B) among the page data read from the page data storage unit 300 to the stroke processing unit 32. Further, the page processing unit 37 outputs the media data indicating the background image (D) among the page data read from the page data storage unit 300 to the background generation unit 34.

The display superimposition unit 36 is an output image (C) from the image acquisition unit 31, a stroke image (B) from the stroke processing unit 32, a UI image (A) from the UI image generation unit 33, and a background generation unit 34. The background image (D) of the above is superimposed according to the layout specified by the layout management unit 35. As a result, as shown in FIG. 10, each of the UI image (A), the stroke image (B), the output image (C), and the background image (D) is in the order in which the user can see the images even if they overlap each other. It is composed of Leia.

Further, the display superimposition unit 36 can switch between the image (C) and the image (D) shown in FIG. 10 and superimpose the image (A) and the image (B) exclusively. .. For example, when the image (A), the image (B), and the image (C) are initially displayed and the cable 10 between the display device 2 and the video output device (notebook PC 6 or the like) is disconnected, By the designation of the layout management unit 35, the image (C) can be excluded from the superimposition target and the image (D) can be displayed. In this case, the display superimposing unit 36 also performs display enlargement, display reduction, and display area movement processing.

The page data storage unit 300 stores page data as shown in FIG. FIG. 6 is a conceptual diagram showing page data. The page data is data for one page (stroke array data (each stroke data) and media data) displayed on the display 3. Since there are many types of parameters included in the page data, the contents of the page data will be described here by dividing them into FIGS. 6 to 9.

As shown in FIG. 6, the page data includes a page data ID for identifying an arbitrary page, a start time indicating the time when the display of this page is started, and rewriting the contents of the page by strokes, gestures, or the like. The end time indicating the time when is no longer performed, the stroke array data ID for identifying the stroke array data generated by the stroke by the electronic pen 4 or the user's hand H, and the media data ID for identifying the media data are associated with each other. Is remembered. The stroke array data is data for displaying the stroke image (B) shown in FIG. 10 described later on the display 3. The media data is data for displaying the background image (D) shown in 16 below on the display 3.

With such page data, for example, when the user draws the alphabet "S" with the electronic pen 4, it is written in one stroke, so that the alphabet [S] of one character is indicated by one stroke data ID. However, when the user draws the alphabet "T" with the electronic pen 4, since it is written in two strokes, the alphabet "T" of one character is indicated by two stroke data IDs.

Further, the stroke array data shows detailed information as shown in FIG. FIG. 7 is a conceptual diagram showing stroke array data. As shown in FIG. 7, one stroke array data is represented by a plurality of stroke data. Then, one stroke data includes a stroke data ID for identifying the stroke data, a start time indicating the writing start time of one stroke, an end time indicating the writing end time of one stroke, and a stroke color. The width of the stroke and the coordinate array data ID for identifying the array of passing points of the stroke are shown.

Further, the coordinate array data shows detailed information as shown in FIG. FIG. 8 is a conceptual diagram showing coordinate array data. As shown in FIG. 8, the coordinate array data is one point (X coordinate value, Y coordinate value) on the display 3, and the time (ms) of the difference from the start time of the stroke when passing through this one point. ), And each information of the pen pressure of the electronic pen 4 at this one point is shown. That is, a set of one point shown in FIG. 8 is shown by one coordinate array data shown in FIG. 7. For example, when the user draws the alphabet "S" with the electronic pen 4, it is written in one stroke, but since the user passes through a plurality of passing points by the time the drawing of the "S" is completed, the coordinate array data has these multiple passing points. Information is shown.

Further, the media data among the page data shown in FIG. 6 shows detailed information as shown in FIG. FIG. 9 is a conceptual diagram showing media data. As shown in FIG. 9, as for the media data, the media data ID in the page data shown in FIG. 6, the data type of the media data, and the page data are stored in the page data storage unit 300 from the page processing unit 37. The recorded time, the position (X coordinate value, Y coordinate value) of the image displayed on the display 3 by the page data, the size (width, height) of the image, and the data indicating the contents of the media data are shown in association with each other. Has been done. Of these, the position of the image displayed on the display 3 by the page data is displayed by the page data when the coordinates of the upper left corner of the display 3 are (X coordinate value, Y coordinate value) = (0,0). It shows the position of the upper left corner of the image to be displayed.

Further, returning to FIG. 5, the remote license management table 310 manages the license data necessary for executing the remote sharing process. In the remote license management table 310, the product ID of the display device 2, the license ID used for authentication, and the expiration date of the license are managed in association with each other.

<About the function of the account server>
FIG. 11 is an example of a functional block diagram for explaining the functions of the account server 8 by dividing them into blocks. The account server 8 has a transmission / reception unit 81, a user authentication unit 82, and a record / reading unit 89. Each of these parts included in the account server 8 is a function or means realized by the CPU 501 that executes a program developed on the RAM 503 from the HD 504. Further, the account server 8 has a storage unit 3000 composed of the RAM 503 and the HD 504.

The transmission / reception unit 81 receives account information from the display device 2 via the communication network 9 and transmits the authentication result, user authority (user ID, general user or administrator, etc.) to the display device 2.

The user authentication unit 82 inquires the authentication information DB 3001 based on the account information and authenticates the user. If the account information is stored in the authentication information DB 3001, it is determined that the authentication is successful, and if it is not stored, it is determined that the authentication has failed and the authentication result is generated. The record reading unit 89 reads information from the storage unit 3000 and writes information to the storage unit 3000.

FIG. 12 schematically shows the information stored in the authentication information DB 3001. The authentication information DB 3001 stores the account information of each user. In FIG. 12, the card information, the user ID, the password, and the user name are associated and stored as account information. The card information is the identification information of the IC card carried by the user, the user ID is the identification information for identifying the user, the password is the information known only to the user, and the user name is used for notation of the user. Therefore, according to the account information of FIG. 12, the user can log in not only with the user ID and password but also with the user name and password or the IC card.

The user authentication function may be internally provided by the display device 2.

<Functions of display device 2 related to tutorial display control>
Further, the display device 2 has a function related to the display of the tutorial as shown in FIG. FIG. 13 is an example of a functional block diagram for explaining the functions of the display device 2 related to the display control of the tutorial by dividing them into blocks.

The display device 2 includes a display control unit 71, a user authentication request unit 72, and a provision control unit 73. These functions possessed by the display device 2 are functions or means realized by the CPU 101 that executes a program developed on the RAM 103 from the SSD 104. Further, the display device 2 has a function usage history DB 75 and a teaching material data DB 74 composed of the RAM 513 and the SSD 104.

The user authentication request unit 72 receives the account information from the user, transmits the account information to the account server 8, and requests the user's authentication. The user authentication request unit 72 acquires the authentication result from the account server 8. If the authentication is successful, the login time 76 is recorded in, for example, RAM 503. The account information may be input from the soft key displayed on the display 3 or may be input from the IC card reader. If the authentication is successful, the display device 2 acquires the user ID, the user's authority, and the like from the account server 8. Upon successful authentication, the user can log in to the display device 2 and use the display device 2 according to the authority of the user. If the authentication fails, the user cannot use the display device 2.

The display control unit 71 displays the tutorial determined to be provided by the provision control unit 73 on the display 3. Although the display control unit 71 has a function of the UI image generation unit 33, it may have a function independent of the UI image generation unit 33.

The provision control unit 73 updates the function usage history table according to the usage status of the display device 2 by the user. In addition, the tutorial to be provided is determined based on the information in the function usage history table, and the tutorial data is read from the teaching material data DB 74.

FIG. 14 shows an example of the function usage history table stored in the function usage history DB 75. The function usage history table is a table that records for each user when and when the user used the function (that the function was used) and when the tutorial of the function was provided (that the function was used). is there. The function usage history table is associated with the user ID. In addition, the number of logins for each user is recorded. Furthermore, whether or not the administrator or the user has set to provide the tutorial (ON or OFF) is registered. The administrator sets the default settings (initial settings) as to whether or not to provide the tutorial, and the user sets them individually.

As shown in FIG. 14, the function usage history table has items of function information, priority, user usage time, tutorial provision time, and function usage rate.

The function information is identification information of a function (a function having a tutorial available to the user) of the display device 2. In other words, the display device 2 is a function that can provide a tutorial and show the user how to use it.

Priority is information that represents the degree to which the tutorial is referenced to determine the functional information provided. The smaller the number, the higher the priority. The administrator or the like sets the priority of the basic function in advance. The basic function is a function required to provide a function as an electronic blackboard, a function generally recognized as a function of an electronic blackboard, or a function frequently used by a user. The administrator can set the priority individually from the PC or by operating the display device 2. Further, the display device 2 may be downloaded from a predetermined server in a state where the function information and the priority are associated with each other.

The user usage time is the date and time when the user last used the function information and the number of times it has been used in the past (of course, between login and logout). The user usage time is used by the providing control unit 73 to calculate the function usage rate. The tutorial execution time is the date and time when the tutorial of the function is provided to the user (of course, between login and logout). The tutorial execution time does not have to be until the date and time as long as it can record whether or not the tutorial was provided in the past (that it was provided). In addition, the number of times of use is counted once if it is used once or more in one login (even if the user uses it twice or more during login, it is counted as one time).

The function usage rate is the usage rate for each function. For example, the provision control unit 73 updates the number of times the function information is used at the user's usage time after the user's login time, and calculates the function usage rate for each function from this and the number of logins. Not all functions have a function usage rate. The calculation formula is as follows, for example.
Latest number of uses =
-If the user usage time after the login time is recorded, the number of past usages + 1
-When the user usage time after the login time is not recorded, the past usage count function usage history = latest usage count / login count FIG. 15 shows an example of teaching material data stored in the teaching material data DB 74. The teaching material data holds the tutorial contents in association with the functional information. The function information is the same as the function usage history table. The tutorial content is data for providing a tutorial for each function. In the tutorial content, for example, the display positions of commands, messages and images (frame lines in FIG. 15) executed by the display device 2 are registered.

For example, with the "write" function, the display device 2 displays the same screen as when the user presses the "write icon" (command execution), and "the line color can be changed" at a fixed position. It is registered to display an image that emphasizes the message "You can change the line thickness" and the button to be operated. Therefore, the display device 2 can provide a tutorial by executing a command and displaying a message or an image at a fixed position.

Alternatively, the tutorial content may be prepared as a PDF file. In this case, the display device 2 may display the PDF file.

In addition, the tutorial content may be indicated by a URL. For example, the URL may direct the user to a video site that plays the tutorial. In addition, the tutorial content may be in any data format such as characters, images, figures, sounds, and the like.

<Tutorial provision settings>
Some users do not need the tutorial, so each user can set whether or not to receive the tutorial. As a result, the user can suppress feeling annoyed.

FIG. 16 shows an example of the tutorial provision setting screen 320. The provision setting screen 320 is displayed by the logged-in user pressing an icon for making various settings. Alternatively, it will be displayed automatically the first time you log in. Whether it is the first login or not is judged from the absence of the function information table of this user.

The provision setting screen 320 has a radio button 321, a cancel button 322, and an OK button 323 associated with "use" and "not use", respectively. The user selects the radio button 321 and presses the OK button 323. The pressing result is registered as ON or OFF in the "tutorial" of the function usage history table.

In FIG. 16, each user sets ON (enabled) / OFF (disabled) of the tutorial function, but the administrator sets the default setting (initial setting) in advance. When the user sets ON or OFF of the tutorial function, the user's setting has priority over the default setting.

<Operation and processing>
Subsequently, with reference to FIG. 17, the overall processing flow in which the display device 2 provides the tutorial will be described. FIG. 17 is an example of a sequence diagram illustrating a procedure from login to updating the function usage rate.

S1: First, the user logs in to the display device 2. That is, the account information is input to the display device 2.

S1.1: The user authentication request unit 72 receives the account information and sends it to the account server 8. The user authentication unit 82 of the account server 8 authenticates the user, and the transmission / reception unit 81 transmits the authentication result to the display device 2. Here, the authentication is successful, and the user ID is transmitted to the display device 2.

S1.2: The communication control unit 60 of the display device 2 receives the authentication result (authentication success, user ID), and the provision control unit 73 of the display device 2 has a function associated with this user ID from the function usage history DB 75. Get the usage history table.

S1.3: Steps S1.3 and S1.4 are executed when there is a function that has not been used by the user and the tutorial has never been provided. Therefore, the provision control unit 73 extracts the function in which the user usage time is not recorded and the tutorial execution time is not recorded in the function usage history table. And we will provide a tutorial of the highest priority function among them. If there are multiple functions with the same priority, execute them in the order of the function names in alphabetical order. Although the number of tutorials provided at one time is one, the provision control unit 73 may provide a plurality of tutorials in succession. Also, for example, if the user requests the next tutorial, the tutorial may be provided upon request. Therefore, the provision control unit 73 may prepare a plurality of tutorials in descending order of priority.

S1.4: When the tutorial is provided, the provided control unit 73 records the tutorial execution time in the function usage history table.

S2: It is assumed that the user has used the function according to the tutorial. In FIG. 17, writing was performed. You may use features that are not provided in the tutorial.

S2.1: The provision control unit 73 is determined by the event distribution unit 25 to be a UI operation, and identifies the function used according to the element of the UI in which the event has occurred. That is, the event distribution unit 25 identifies that it is a UI operation to a certain icon based on the coordinates touched by the electronic pen 4. Since the operation processing unit 26 identifies the function of the operated icon, the provision control unit 73 records the user usage time of the function notified from the operation processing unit 26 in the function usage history table. Instead of recording at the timing when the function of the display device 2 is used, it may be recorded at the time of logout.

S3: The user inputs the logout operation. For example, press the logout button.

S3.1: When logged out, the provision control unit 73 identifies a function whose user usage time in the function usage history table is later than the login time. Functions whose user usage time is later than the login time are functions used in the login, and functions before the login time are functions that are not used in the login. The provision control unit 73 calculates the function usage rate for each function based on "function usage history = latest usage count / login count".

S3.2: The provision control unit 73 updates the function usage rate of the function usage history table with the calculated function usage rate. As a result, the function usage rate can be updated for each function.

Subsequently, the tutorial provision process will be described with reference to FIG. FIG. 18 is an example of a flowchart illustrating a process in which the display device 2 provides a tutorial. The process of FIG. 18 is executed after the display device 2 is started.

The user authentication request unit 72 of the display device 2 confirms the setting of whether or not to perform authentication (S11). This is because the administrator can set whether or not to use the authentication function depending on the display device 2. In the case of the setting of not authenticating, since the user cannot be specified, the process of FIG. 18 ends.

In the case of the setting of authentication, the user authentication request unit 72 receives the account information from the user (S12). If the user does not enter the account information, the user cannot be identified, so the process of FIG. 18 ends.

When the user inputs the account information, the user authentication request unit 72 acquires the authentication result (authentication success, authentication failure) from the account server 8 (S13). If the authentication is successful, the user authentication request unit 72 acquires at least the user ID. If the authentication fails, the process of FIG. 18 ends.

Next, the provision control unit 73 determines whether or not the function usage history table associated with the user ID exists in the function usage history DB 75 (S14).

Since the user who logs in to the display device 2 for the first time does not have the function usage history table, the provision control unit 73 creates the function usage history table (S15).

Next, the provision control unit 73 determines whether or not the tutorial function is valid by referring to the function usage history table (S16). If the tutorial function is not enabled (OFF), the display device 2 does not provide the tutorial, and the process of FIG. 18 ends. When logging in for the first time, whether the tutorial function is enabled or disabled depends on the administrator's settings (default).

When the tutorial function is enabled (ON), the provided control unit 73 has never been used by the user (there is no record of the user's use time), and the tutorial is not provided (there is no record of the tutorial provided time). It is determined whether or not there is a function (S17). If the determination in step S17 is No, the tutorial is not provided, so the process of FIG. 18 ends.

Here, although it is limited to unused and not provided tutorials, tutorials may be provided for functions that are used by the user less frequently than specified. For example, a tutorial of a function that has been used twice or less may be provided, or a tutorial that the function usage rate is less than the threshold value may be provided.

In addition, even if the function has been used by the user or the tutorial has been provided, the tutorial of the function for which a certain time has passed from the user's use time may be provided, or a certain time from the tutorial provision time. You may provide a tutorial on the features that have passed. It is possible to provide tutorials for functions that users do not use often or functions that have been provided for a long time. When providing a function for which a certain time has passed from the user usage time or the tutorial provision time, it is advisable to provide the tutorial in ascending order of function usage rate.

If the determination in step S17 is Yes, the provision control unit 73 provides a tutorial according to the priority of the function (S18). Functions with the same priority are determined in a fixed order, such as alphabetical order of function names.

When a new function is added due to software version upgrade, the administrator adds this function to each user's function usage history table to maximize the priority. Generally, a special priority 0 or the like higher than the highest priority 1 is set. By doing so, the provision control unit 73 can provide the tutorial of the new function at the first login after the version upgrade.

<Supplement of priority>
It has been explained that the functions used by the user less frequently than the predetermined frequency are provided in descending order of priority, but this priority may be adjusted by the function usage rate of other users. For example, the functions that the user has never used and the tutorial is not provided are sorted in descending order of the function usage rate of other users.

FIG. 19 is an example of a flowchart diagram for determining the order in which tutorials are provided for functions that have not been used by the user and for which tutorials are not provided. This process is executed in step S18 of FIG.

The provision control unit 73 acquires the function usage rate of another user (preferably all users) from the function usage history table for the function that the user has never used and the tutorial is not provided (S21). ..

Next, the provision control unit 73 averages the function usage rates of other users for each function (S22). The provision control unit 73 sorts the functions in descending order of the function usage rate of other users (S23).

If the provision control unit 73 provides the tutorials in descending order of the function usage rate of other users, the tutorials of the frequently used functions can be provided with priority. The user can also use functions that are convenient for other users.

<Providing two or more tutorials>
Some functions are often used continuously. For example, after the user captures the screen, an email is sent. In this case, if the tutorials of the two functions are provided in succession, the learning effect will be enhanced. Therefore, the provision control unit 73 may refer to the user usage time of another user, extract a plurality of functions that are continuously executed, and provide a tutorial of the plurality of functions.

FIG. 20 is an example of a flowchart showing a procedure in which the provision control unit 73 continuously determines a function for providing a tutorial. The process of FIG. 20 is executed in step S18 of FIG.

First, the provision control unit 73 determines the function A for providing the tutorial (S31). As the determination method, the priority may be used, or the method of FIG. 19 may be used.

Next, the provision control unit 73 extracts the function A (an example of the first function) and the function B (an example of the second function) executed continuously from the function usage history table of another user (S32). ). For example, the function A is searched from the function usage history table of each user, and the function B'(candidate for the function B) closest to the user usage time of the function A is specified. The function B', which has the smallest time difference between the user's function A and the user's usage time of the function B', is defined as the function B to be executed continuously with the function A. It should be noted that it is assumed that the time difference is within the threshold value that can be regarded as being continuously operated, and if it is not within the threshold value, it may be determined that the function B has not existed.

The provision control unit 73 provides a tutorial for function B following the tutorial for function A (S33).

By doing so, it is possible to continuously provide tutorials on two functions that are likely to be used consecutively, and to enhance the learning effect.

<Tutorial display example>
FIG. 21 shows a display example of the tutorial displayed on the display 3 of the display device 2. First, the state in which the icon list 331 of each function is displayed is the menu screen 330 in the initial state. The icon list 331 includes an icon 331a relating to connection with another display device 2, a writing icon 331b, an icon 331c relating to deleting a stroke, an icon 331d for returning one operation, an icon 331e for advancing one operation, and enlarging the screen. The enlarged icon 331f is displayed.

FIG. 21 provides a tutorial on the writing function. Therefore, various buttons related to the settings that can be selected from the writing icon 331b are displayed. For example, a color button 332, a thickness button 333, a grid button 334, and the like are displayed. In addition, the frame line 342 surrounding various buttons and the message 341 "You can change the color of the line" and "You can change the thickness of the line" are displayed. The border 342 and the message 341 allow the user to learn what the write function looks like. That is, the border 342 and the message 341 are tutorials.

The provision control unit 73 acquires the tutorial content of the function of "writing" from the teaching material data DB 74 while the menu screen 330 in the initial state including the icon list 331 is displayed, and issues a command of "pressing the writing icon". Correspondingly, the state in which the writing icon 331b is pressed is reproduced, and the two messages 341 and the frame line 342 are displayed at fixed positions. By doing this, you can provide tutorials for each function.

The tutorial may be provided by voice. In this case, an audio file is registered in the teaching material data, and the provision control unit 73 reproduces the audio file.

<Provided by shortcuts for functions with high usage rate>
By utilizing the fact that the function usage rate is registered in the function usage history table, the display control unit 71 can also display an icon for calling a function having a high usage rate. An operation that calls a function with fewer operations than usual is called a shortcut. Hereinafter, the icon that can be shortcut is referred to as a function call icon 331g.

FIG. 22 is an example of an icon list 331 including an icon that calls a function having a high function usage rate. The function call icon 331g is associated with the top N functions (N = 3 in FIG. 22) having a high function usage rate, and when the user presses the function call icon 331g, the explanations of the N functions 336a to 336c are given. Is displayed. Description When 336a to 336c are pressed, the same processing as when the icon of the function is pressed is performed. Therefore, the user can easily access (call) the function frequently used by the user from one place (function call icon 331g).

Such a function call icon 331g is convenient when the user uses a function that is deep in the hierarchy but is often used.

FIG. 23 is an example of a flowchart showing a procedure in which the display control unit 71 displays the function call icon 331g. The process of FIG. 23 is executed when the display device 2 displays the icon list 331.

For example, the user logs in to the display device 2 (S41). Since the display control unit 71 displays the icon list 331, the display control unit 71 identifies the top N functions having a high function usage rate in the function usage history table of this user (S42).

The display control unit 71 displays N functions in association with the function call icon 331g (S43). To associate means to set the function description 336 and the link to the function to the function call icon 331g. The display control unit 71 displays the function description 336 by pressing the function call icon 331g, and when the function description 336 is pressed, the operation processing unit 26 executes the linked function.

In this way, by using the function usage rate, it is possible to easily access the functions frequently used by the user from one place.

<Summary>
As described above, according to the display device 2 of the present embodiment, the user can try to use a function that has never been used by pressing the icon according to the tutorial. Since the user has just logged in, the same icon can be used in the meeting, making it easier to remember the function. As described above, the display device 2 of the present embodiment can reduce the functions that the user does not use.

In this embodiment, a display device that displays by projecting an image will be described.

<< Another example of display device configuration 1 >>
Although the display device of the present embodiment is described as having a large touch panel, the display device is not limited to the one having a touch panel.

FIG. 24 is a diagram showing another configuration example of the display device. In FIG. 24, the projector 411 is installed on the upper side of the normal whiteboard 413. This projector 411 corresponds to a display device. The normal whiteboard 413 is not a flat panel display integrated with a touch panel, but a whiteboard that the user directly handwrites with a marker. The whiteboard may be a blackboard, and may be a flat surface large enough to project an image.

The projector 411 has an ultra-short focus optical system, and can project an image with little distortion from about 10 cm onto the whiteboard 413. This image may be transmitted from the PC 400-1 connected wirelessly or by wire, or may be stored in the projector 411.

The user writes on the whiteboard 413 using a dedicated electronic pen 2501. The electronic pen 2501 has, for example, a tip portion that emits light when the user presses it against the whiteboard 413 for handwriting and the switch is turned on. Since the wavelength of light is near infrared or infrared, it is invisible to the user's eyes. The projector 411 has a camera, captures a light emitting unit, analyzes the image, and identifies the direction of the electronic pen 2501. Further, the electronic pen 2501 emits sound waves together with light emission, and the projector 411 calculates the distance from the arrival time of the sound waves. The position of the electronic pen 2501 can be specified by the direction and the distance. A stroke is drawn (projected) at the position of the electronic pen 2501.

Since the projector 411 projects the menu 430, when the user presses a button with the electronic pen 2501, the projector 411 identifies the pressed button by the position of the electronic pen 2501 and the ON signal of the switch. For example, when the save button 431 is pressed, the stroke (set of coordinates) handwritten by the user is saved by the projector 411. The projector 411 stores handwritten information in a predetermined server 412, a USB memory 2600, or the like. Handwritten information is stored page by page. Since the coordinates are saved instead of the image data, the user can re-edit them. However, in the present embodiment, since the operation command can be called by hand, the menu 430 does not have to be displayed.

<< Another example of display device configuration 2 >>
FIG. 25 is a diagram showing another configuration example of the display device. In the example of FIG. 25, the display device includes a terminal device 600, an image projection device 700A, and a pen motion detection device 810.

The terminal device 600 is connected to the image projection device 700A and the pen motion detection device 810 by wire. The image projection device 700A projects the image data input by the terminal device 600 onto the screen 800.

The pen motion detection device 810 communicates with the electronic pen 820 and detects the motion of the electronic pen 820 in the vicinity of the screen 800. Specifically, the electronic pen 820 detects coordinate information indicating a point indicated by the electronic pen 820 on the screen 800 and transmits the coordinate information to the terminal device 600.

The terminal device 600 generates image data of a stroke image input by the electronic pen 820 based on the coordinate information received from the pen motion detection device 810, and causes the image projection device 700A to draw the stroke image on the screen 800.

Further, the terminal device 600 generates superimposed image data showing a superimposed image in which the background image projected on the image projection device 700A and the stroke image input by the electronic pen 820 are combined.

<< Another example of display device configuration 3 >>
FIG. 26 is a diagram showing a configuration example of the display device. In the example of FIG. 26, the display device includes a terminal device 600, a display 800A, and a pen motion detection device 810.

The pen motion detection device 810 is arranged in the vicinity of the display 800A, detects coordinate information indicating a point indicated by the electronic pen 820A on the display 800A, and transmits the coordinate information to the terminal device 600. In the example of FIG. 26, the electronic pen 820A may be charged by the terminal device 600 via the USB connector.

The terminal device 600 generates image data of a stroke image input by the electronic pen 820A based on the coordinate information received from the pen motion detection device 810, and displays the image data on the display 800A.

<< Another example of display device configuration 4 >>
FIG. 27 is a diagram showing a configuration example of the display device. In the example of FIG. 27, the display device includes a terminal device 600 and an image projection device 700A.

The terminal device 600 performs wireless communication (Bluetooth (registered trademark), etc.) with the electronic pen 820B, and receives the coordinate information of the point indicated by the electronic pen 820B on the screen 800. Then, the terminal device 600 generates image data of the stroke image input by the electronic pen 820B based on the received coordinate information, and causes the image projection device 700A to project the stroke image.

Further, the terminal device 600 generates superimposed image data showing a superimposed image in which the background image projected on the image projection device 700A and the stroke image input by the electronic pen 820 are combined.

As described above, each of the above-described embodiments can be applied in various system configurations.

<Other application examples>
Although the best mode for carrying out the present invention has been described above with reference to examples, the present invention is not limited to these examples, and various modifications are made without departing from the gist of the present invention. And substitutions can be made.

For example, in the present embodiment, a display device that can be used as an electronic blackboard has been described, but the display device may be any display device as long as it can display an image, for example, digital signage.

Further, the image 11 to be displayed may be a moving image or a still image.

Further, in the present embodiment, the electronic blackboard has been described as an example of the display device, but any information processing device having a touch panel can be suitably applied. Information processing devices equipped with a touch panel include, for example, PJs (Projectors), output devices such as digital signage, HUD (Head Up Display) devices, industrial machines, imaging devices, sound collectors, medical devices, network home appliances, etc. It may be a notebook PC (Personal Computer), a mobile phone, a smartphone, a tablet terminal, a game machine, a PDA (Personal Digital Assistant), a digital camera, a wearable PC, a desktop PC, or the like.

Further, in the present embodiment, the coordinates of the pen are detected by the method of detecting the coordinates of the pen tip with the touch panel, but the coordinates of the pen tip may be detected by ultrasonic waves. The pen emits ultrasonic waves together with light emission, and the display device 2 calculates the distance from the arrival time of the ultrasonic waves. The position of the pen can be specified by the direction and distance. The projector draws (projects) the trajectory of the pen as a stroke.

Further, the configuration examples shown in FIGS. 5 and 13 are divided according to the main functions in order to facilitate understanding of the processing by the display device 2. The present invention is not limited by the method of dividing the processing unit or the name. The processing of the display device 2 can be divided into more processing units according to the processing content. It is also possible to divide one processing unit so as to include more processing.

Further, each function of the embodiment described above can be realized by one or a plurality of processing circuits. Here, the "processing circuit" in the present specification is a processor programmed to execute each function by software such as a processor implemented by an electronic circuit, or a processor designed to execute each function described above. It shall include devices such as ASIC (Application Specific Integrated Circuit), DSP (digital signal processor), FPGA (field programmable gate array) and conventional circuit modules.

1 Image processing system 2 Display device 3 Display

Japanese Unexamined Patent Publication No. 2014-230034

Claims (11)

A display device that identifies a user by external or internal authentication.
It is characterized by having a provision control unit that provides a usage method of a function whose frequency of use by the user is less than or equal to a predetermined value based on the function usage history information recorded for each function as to whether or not the user has used the function. Display device. The provision control unit records the fact that the function has been used and the fact that the method of using the function has been provided in the function usage history information for each function.
The display device according to claim 1, wherein the user provides a usage method of the function that has never been used and the usage method of the function is not provided. Priority is set for each function in the function usage history information.
The display device according to claim 2, wherein the provision control unit provides a method of using the functions in descending order of priority when there are a plurality of functions that the user uses less frequently than a predetermined value. The provided control unit registers the function usage rate of the function used by the user in the function usage history information for each function.
When there are a plurality of functions whose frequency of use by the user is less than or equal to a predetermined value, the provision control unit provides a method of using the functions in descending order of the function usage rate of other users for the plurality of functions. Item 2. The display device according to item 2. The provision control unit registers the usage time when the user uses the function in the function usage history information for each function.
The provision control unit performs a second function that is continuously executed with the first function that provides a usage method of the function, the first function and the second function in the function usage history information of another user. Determined based on the time difference of the above-mentioned usage time of the function candidates of
The display device according to any one of claims 1 to 4, wherein the method of using the first function and the method of using the second function are continuously provided. The display device according to claim 5, wherein the provided control unit calculates the function usage rate by dividing the number of times the function having the usage time after the user's login time is used by the number of logins. .. The display device according to any one of claims 1 to 6, wherein the provision control unit provides a method of using the function immediately after the user logs in. The top N functions with high function usage rates are determined based on the function usage history information.
It has a display control unit that sets a description of N functions and links to the functions to predetermined icons and displays the icons.
The fourth aspect of claim 4, wherein when the icon is pressed, a description of N functions is displayed, and when the description is pressed, a function corresponding to the pressed description is executed. Display device. It is a usage method provided by a display device that identifies a user by external or internal authentication.
Providing a usage method characterized by providing a usage method of a function whose frequency of use by the user is less than or equal to a predetermined value, based on the function usage history information recorded for each function as to whether or not the user has used the function. Method. A display device that identifies a user by external or internal authentication
To function as a provision control unit that provides a usage method of a function whose frequency of use by the user is less than or equal to a predetermined value, based on the function usage history information recorded for each function as to whether or not the user has used the function. program. An image processing system having a server that authenticates a user and a display device that acquires an authentication result from the server.
The server
The authentication result based on the account information received from the display device and the user's identification information are transmitted to the display device.
The display device is
It is characterized by having a provision control unit that provides a usage method of a function whose frequency of use by the user is less than or equal to a predetermined value based on the function usage history information recorded for each function as to whether or not the user has used the function. Image processing system.

Images