JP2015082026A - Display device, display system, and display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device, a display system, and a display method such that when the same image with terminal equipment is displayed on a display device through Miracast connection etc., image data can be displayed rapidly in an easy-to-see direction for the user of the terminal equipment.SOLUTION: There is provided a display device 1 which is connected to portable terminal equipment 2a, 2b. The display device includes: a plurality of reception parts 11a-11d which are dotted and arranged at a peripheral edge of the display device, and receive image data displayed by the terminal equipment from the terminal equipment; a storage part 14 which stores reception position information in which the terminal equipment and the position of a reception part receiving the image data from the terminal equipment are related; a display part 16 which displays the received image data; and a control part 13c which displays the received image data at a display part based on the reception position information such that the direction of the image data displayed on the terminal equipment is the same as the direction of the image data displayed at the display part when the display part is viewed from the position of the reception part.

Description

  The present invention relates to a display device, a display system, and a display method, and more particularly, to a display device, a display system, and a display method connected to a portable terminal device.

In a display device such as a PC (Personal Computer) having a display screen, the display content is displayed so as to be read from the operation position of the keyboard. For this reason, it becomes difficult to read the display content from directions other than the operation position of the keyboard.
Here, in a face-to-face meeting or the like, a display device of a type in which a display screen is laid flat is used. In this case, it is necessary for the person who is in a direction different from the operator of the display screen to be able to read the display content. For example, Patent Documents 1 and 2 propose a technique of a display device that allows reading contents to be read from two directions facing each other, and it is conceivable to use the technique for the display device.

JP-A-5-197507 Japanese Patent Application Laid-Open No. 8-179533

  Recently, portable terminal devices such as smartphones and PDAs (Personal Digital Assistants) have rapidly spread, and Miracast (registered trademark) that displays the display screen of this terminal device directly on a large screen of a display device such as a liquid crystal monitor. This technology is known. Miracast is a wireless connection standard established by the Wi-Fi Alliance, which connects a display device and a terminal device on a one-to-one basis using a wireless LAN. Therefore, a wireless LAN router is not necessary. The connection is simple. For example, when a predetermined input switching button on the display device side is selected and the connection is on standby, both terminals recognize the other party by starting the Miracast application on the corresponding terminal device side. The image data of the terminal device is displayed on the large screen of the display device.

  However, when the techniques described in Patent Documents 1 and 2 are used, it is necessary to set the display direction, and there is a problem that image data in a direction that is easy for the user of the terminal device to display easily cannot be displayed.

  The present invention has been made in view of the above circumstances, and when the same image as that of the terminal device is displayed on the display device by Miracast connection or the like, the image data can be quickly displayed in a direction that is easy for the user of the terminal device to view. An object of the present invention is to provide a display device, a display system, and a display method that can be displayed on the screen.

  In order to solve the above problems, a first technical means of the present invention is a display device connected to a portable terminal device, and is arranged to be scattered around the periphery of the display device, and the terminal device A plurality of receiving units that receive the image data displayed on the terminal device, and a storage unit that stores reception position information that associates the terminal device with the position of the receiving unit that has received the image data from the terminal device; A display unit that displays the received image data; and a control unit that sets a direction of the received image data and displays the received image data on the display unit, the control unit based on the reception position information. The received image data so that the orientation of the image data displayed on the device and the orientation of the image data displayed on the display unit when viewed from the position of the reception unit are the same. On the display Is obtained is characterized by that presents.

  According to a second technical means, in the first technical means, the display device further includes a transmitting unit that transmits an address on the display device side to the terminal device, and the receiving unit is configured such that the terminal device is on the display device side. The image data displayed on the terminal device and transmitted using the address is received from the terminal device.

  A third technical means is a display system having a portable terminal device and a display device connected to the terminal device, wherein the display device is arranged to be scattered around the periphery of the display device. Storing reception position information associating a plurality of receiving units that receive image data displayed on the terminal device from the terminal device, and the positions of the receiving unit that has received the image data from the terminal device A storage unit, a display unit that displays the received image data, and a control unit that sets the direction of the received image data and displays the received image data on the display unit. Based on the above, the direction of the image data displayed on the terminal device and the direction of the image data displayed on the display unit when the display unit is viewed from the position of the reception unit are the same direction. Received image data When the terminal device transmits the image data displayed on the terminal device to the display device, the display device transmits the address on the display device side that the display device has transmitted to the terminal device in advance. It is characterized by using and transmitting.

  A fourth technical means is a display method by a display device connected to a portable terminal device, and is displayed on the terminal device by a plurality of receiving units arranged to be scattered around the periphery of the display device. Receiving the received image data from the terminal device, storing the received position information associating the terminal device with the position of the receiving unit that received the image data from the terminal device, and the received A control step of setting a direction of image data to display on the display unit; and a display step of displaying the received image data on the display unit. In the control step, based on the reception position information, the terminal device The direction of the image data displayed on the display unit and the direction of the image data displayed on the display unit when the display unit is viewed from the position of the receiving unit are the same direction. Is obtained is characterized in that to display the received image data on the display unit.

  According to the present invention, since the orientation of the image data is automatically changed with the reception of the image data from the terminal device, it is not necessary to set the display direction as in the prior art, and the image data is used by the terminal device. Display in an easy-to-see direction for the user.

It is a figure which shows the example of an external appearance structure of the display system which concerns on this invention. It is a block diagram which shows the functional structural example of the display apparatus and terminal device which concern on the 1st Embodiment of this invention. It is a flowchart for demonstrating an example of the display method by the display apparatus of FIG. It is a figure which shows an example of the screen displayed on the display apparatus of FIG. It is a flowchart for demonstrating an example of the display method by the display apparatus which concerns on the 2nd Embodiment of this invention.

Hereinafter, preferred embodiments according to a display device, a display system, and a display method of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram showing an external configuration example of a display system according to the present invention. The display system includes portable terminals 2a and 2b and a liquid crystal monitor 1 connected to the portable terminals 2a and 2b. The portable terminals 2a and 2b correspond to the portable terminal device of the present invention, and the liquid crystal monitor 1 corresponds to the display device of the present invention.

The liquid crystal monitor 1 is, for example, a flat type (also called a horizon style) in which the angle between the display screen and the ground plane of the liquid crystal monitor is about 0 °, and is configured with a larger screen than the portable terminals 2a and 2b. . The present invention can also be applied to a pen writing style (the angle between the display screen and the ground plane is about 10 °).
The large-screen liquid crystal monitor 1 and the small-screen portable terminals 2a and 2b have, for example, wireless connection using an RFID (Radio Frequency Identification) system such as Felica (registered trademark), the above-mentioned Miracast connection, or similar functions. When the pairing is completed, image data to be displayed on the portable terminals 2a and 2b is transmitted to the liquid crystal monitor 1, and the liquid crystal monitor 1 displays the same image as the portable terminals 2a and 2b.

(First embodiment)
FIG. 2 is a block diagram illustrating a functional configuration example of the display device and the terminal device according to the first embodiment of the present invention. The liquid crystal monitor 1 includes, for example, a total of four transmission / reception units 11a to 11d, an authentication processing unit 12, a control unit 13, a storage unit 14, a display panel control unit 15, and a display panel 16. The transmission / reception units 11a to 11d correspond to the reception unit and the transmission unit of the present invention, and the display panel 16 corresponds to the display unit of the present invention. The display device according to the present invention is a thin display device other than the liquid crystal monitor 1. Alternatively, an organic EL panel, a plasma display, or a liquid crystal television may be used as a monitor.

  The transmission / reception units 11 a to 11 d are arranged so as to be scattered along the periphery of the liquid crystal monitor 1. For example, on the front side of the liquid crystal monitor 1 shown in FIG. 2 (corresponding to the long side on the front side of the display panel 16 shown in FIG. 1), there is a transmission / reception unit 11d near the left end and a transmission / reception unit 11c near the right end. On the back side of the liquid crystal monitor 1 (corresponding to the long side on the back side of the display panel 16 shown in FIG. 1), a transmission / reception unit 11a near the left end and a transmission / reception unit 11b near the right end are provided.

The transmission / reception units 11a to 11d transmit the address on the liquid crystal monitor side to the portable terminals 2a and 2b according to an instruction from the control unit 13 as described later, and then receive the authentication data transmitted from the portable terminals 2a and 2b. To the authentication processing unit 12.
When there is a pairing request from the portable terminals 2a and 2b and the verification result between the authentication data from the portable terminals 2a and 2b and the data in the storage unit 14 is correct, the authentication processing unit 12 sends the processing result to the control unit 13. The sending and control unit 13 establishes communication with the portable terminals 2a and 2b. This authentication is RFID applied to short-range communication, and NFC (Near Field Communication) is used as an example.

The control unit 13 includes a CPU for controlling the operation of the liquid crystal monitor 1, loads various programs and data stored in, for example, the ROM of the storage unit 14 into the RAM, and loads the programs in the loaded RAM. Execute.
The control unit 13 includes an authentication position determination unit 13a, a connection processing unit 13b, and a video processing unit 13c.

When the authentication position determination unit 13a receives the positions of the transmission / reception units 11a to 11d communicating with the portable terminals 2a and 2b from the authentication processing unit 12, the reception associated with the portable terminals 2a and 2b and the positions of the transmission / reception units 11a to 11d Create location information. The storage unit 14 stores the reception position information.
After the communication between the liquid crystal monitor 1 and the portable terminals 2a and 2b is established, the connection processing unit 13b analyzes and decodes image data sent from the portable terminals 2a and 2b via the transmission / reception units 11a to 11d, etc. The decoded image data is sent to the video processing unit 13c.

  Based on the reception position information from the authentication position determination unit 13a, the video processing unit 13c displays the display panel 16 shown in FIG. 1 from the orientation of the image data displayed on the portable terminals 2a and 2b and the positions of the transmission / reception units 11a to 11d. The orientation of the received image data is set so that the orientation of the image data displayed on the display panel 16 is the same as when the image is viewed, and the setting result is sent to the display panel control unit 12. For this reason, the image processing unit 13c corresponds to the control unit of the present invention.

The display panel control unit 12 is for controlling the drive of the display panel 16, and displays the image data from the video processing unit 13c on the display panel 16 in a state where it can be seen. The display panel 16 is composed of a liquid crystal panel in this example.
The portable terminals 2a and 2b are, for example, smartphones, and include a transmission / reception unit 21, a display unit 22, a control unit 23, and a storage unit 24. Note that the terminal device according to the present invention may be other than the portable terminals 2a and 2b, and may be, for example, a PC equipped with a touch panel.

3 is a flowchart for explaining an example of the display method by the display device of FIG. 2, and FIG. 4 is a diagram showing an example of a screen displayed on the display device of FIG.
The authentication processing unit 12 determines whether or not the mobile terminals 2a and 2b are approaching within a predetermined range (step S1). In the transmission / reception units 11a to 11d, activation signals (electromagnetic waves) are constantly transmitted. For example, when the user of the portable terminals 2a and 2b holds the portable terminals 2a and 2b over the transmission / reception units 11a to 11d, the portable terminals 2a and 2b The transmission / reception unit 21 receives activation signals from the transmission / reception units 11a to 11d. In this case, for example, the control unit 23 of the portable terminals 2a and 2b rectifies the carrier wave of the activation signal to create a DC power source to drive the internal circuit, and transmits response signals to the transmission / reception units 11a to 11d.

Upon receiving this response signal, the authentication processing unit 12 determines that the portable terminals 2a and 2b have approached the predetermined range of the transmission / reception units 11a to 11d (YES in step S1), and sets the address on the liquid crystal monitor side to the portable terminal 2a. , 2b (step S2).
Next, the authentication process part 12 determines whether there exists a pairing request | requirement from the portable terminals 2a and 2b (step S3).

  When the portable terminals 2a and 2b use the address on the liquid crystal monitor side and transmit a signal requesting pairing to the liquid crystal monitor 1 together with the authentication data of the portable terminals 2a and 2b (YES in step S3), the authentication process The unit 12 performs an authentication process for the portable terminals 2a and 2b (step S4). And when the collation result with the authentication data from portable terminal 2a, 2b and the data of the memory | storage part 14 of the liquid crystal monitor 1 is correct, the authentication process part 12 is the transmission / reception part 11a which established communication with portable terminal 2a, 2b The positions of ˜11d are sent to the authentication position determination unit 13a.

  As described above, the liquid crystal monitor 1 transmits the address on the liquid crystal monitor side to the portable terminals 2a and 2b, and the portable terminals 2a and 2b transmit the authentication data to the liquid crystal monitor 1 using the address on the liquid crystal monitor side. It is possible to prevent the confidential information (for example, the mobile terminal side address) on the mobile terminals 2a and 2b from flowing out of the mobile terminals 2a and 2b against the intention of the user of the mobile terminals 2a and 2b.

Subsequently, the authentication position determination unit 13a creates reception position information in which the mobile terminals 2a and 2b are associated with the positions of the transmission / reception units 11a to 11d (step S5), and the connection processing unit 13b is connected to the mobile terminals 2a and 2b. The sent image data is analyzed and decoded (step S6).
The video processing unit 13c determines whether or not to change the orientation of the image data decoded by the connection processing unit 13b based on the reception position information from the authentication position determination unit 13a (step S7).

  As shown in FIG. 4A, in the reception position information by the authentication position determination unit 13a, the mobile terminal 2a is authenticated by the transmission / reception unit 11d shown in FIG. 2 (NO in step S7 in FIG. 3). When the mobile terminal 2b has been authenticated by the transmission / reception unit 11c shown in FIG. 2 (NO in step S7 in FIG. 3), the video processing unit 13c displays the images of the mobile terminals 2a and 2b in FIG. The direction of the received image data is set so that it can be read from the front side of the liquid crystal monitor 1 shown in A). Thus, the large screen of the display panel 16 is displayed using the above-described Miracast connection so that each image displayed on the display unit 22 of the mobile terminals 2a and 2b can be read from the same direction (step S9). ).

  On the other hand, for example, as shown in FIG. 2 and FIG. 4 (B), when the mobile terminal 2a is authenticated by the transmission / reception unit 11d shown in FIG. 2 in the reception position information by the authentication position determination unit 13a (step of FIG. 3). In S7, the video processing unit 13c sets the direction of the received image data so that the image of the portable terminal 2a can be read from the front side of the liquid crystal monitor 1 shown in FIG. 4B. However, if the portable terminal 2b has been authenticated by the transmission / reception unit 11b shown in FIG. 2 (YES in step S7 in FIG. 3), the video processing unit 13c displays the image of the portable terminal 2b in FIG. The direction of the received image data is reversed and set so that it can be read from the back side of the liquid crystal monitor 1 shown in FIG. 3 (step S8 in FIG. 3).

As a result, the image displayed on the display unit 22 of the mobile terminal 2a is displayed on the large screen of the display panel 16 using the Miracast connection (step S9), and also displayed on the display unit 22 of the mobile terminal 2b. The image is displayed using the Miracast connection so that the image of the mobile terminal 2a can be read from the facing direction (step S9).
As described above, since the orientation of the image data is automatically changed along with the authentication of the mobile terminals 2a and 2b, it is not necessary to set the display direction as in the past, and the image data is used by the mobile terminals 2a and 2b. Display in an easy-to-see direction for the user.

(Second Embodiment)
FIG. 5 is a flowchart for explaining an example of the display method by the display device according to the second embodiment of the present invention. In this embodiment, a wireless connection having the same function is used instead of the Miracast connection. doing.
Specifically, the authentication of the mobile terminals 2a and 2b is the same as steps S1 to S5 of the above embodiment, but the RFID system related to this authentication is used for the transmission of image data from the mobile terminals 2a and 2b. It is performed by wireless communication of a different system from the conventional wireless communication.

For example, when it is determined that the user of the portable terminals 2a and 2b holds the portable terminals 2a and 2b over the transmission / reception units 11a to 11d, and the portable terminals 2a and 2b approach the predetermined range of the transmission / reception units 11a to 11d (step) In step S12, the address on the liquid crystal monitor side is transmitted to the portable terminals 2a and 2b in order to receive the image data on the liquid crystal monitor 1 (step S12).
As described above, since the image data is transmitted using the address on the liquid crystal monitor side in the portable terminals 2a and 2b, the secret information (for example, the portable terminal side address) on the portable terminals 2a and 2b side is stored in the portable terminal. It is possible to prevent the mobile terminals 2a and 2b from flowing out against the intentions of the users 2a and 2b.

Next, the control unit 13 of the liquid crystal monitor 1 requests, for example, data of a list of file names of images held by the portable terminals 2a and 2b to the portable terminals 2a and 2b via the transmission / reception units 11a to 11d (step S13). ).
The control unit 23 of the portable terminals 2a and 2b reads data of a list of image file names from the storage unit 24, and transmits the data to the liquid crystal monitor 1 via the transmission / reception unit 21 (step S14).

  Subsequently, the control unit 13 of the liquid crystal monitor 1 stores the received file name list data in the storage unit 14, and displays, for example, the file name list screen on the display panel 16 (step S15). . Thereafter, when a file name is selected (YES in step S16), the video processing unit 13c, as in the above-described embodiment, displays an image in which the file name is selected based on the reception position information from the authentication position determination unit 13a. It is determined whether or not to change the direction of the data, and the data is displayed on the large screen of the display panel 16 with the set direction of the image data.

  As described above, the wireless communication related to the image data is configured in a system different from the wireless communication using the RFID system, and thus the communication speed is higher than that in the case of using the system, and the images from the portable terminals 2a and 2b are used. Data can be received promptly and displayed on the display panel 16.

DESCRIPTION OF SYMBOLS 1 ... Liquid crystal monitor, 2a, 2b ... Portable terminal, 11a, 11b, 11c, 11d ... Transmission / reception part, 12 ... Authentication processing part, 13 ... Control part, 13a ... Authentication position determination part, 13b ... Connection processing part, 13c ... Image | video Processing unit, 14 ... storage unit, 15 ... display panel control unit, 16 ... display panel, 21 ... transmission / reception unit, 22 ... display unit, 23 ... control unit, 24 ... storage unit.

Claims (4)

A display device connected to a portable terminal device,
A plurality of receiving units arranged to be scattered around the periphery of the display device and receiving image data displayed on the terminal device from the terminal device;
A storage unit that stores reception position information that associates the terminal device with a position of a reception unit that has received image data from the terminal device;
A display unit for displaying the received image data;
A control unit that sets the direction of the received image data and displays the direction on the display unit,
The control unit, based on the reception position information, the direction of the image data displayed on the terminal device and the direction of the image data displayed on the display unit when the display unit is viewed from the position of the reception unit The display device displays the received image data on the display unit so that and are in the same direction. The display device according to claim 1,
The display device further includes a transmission unit that transmits an address on the display device side to the terminal device,
The display device, wherein the receiving unit receives image data displayed on the terminal device, transmitted from the terminal device using an address on the display device side, from the terminal device. A display system having a portable terminal device and a display device connected to the terminal device,
The display device is arranged so as to be scattered around the periphery of the display device, and includes a plurality of reception units that receive image data displayed on the terminal device from the terminal device, the terminal device, and the terminal device. A storage unit that stores reception position information in association with a position of a reception unit that has received image data, a display unit that displays the received image data, and a direction of the received image data are set in the display unit. A control unit that displays the display unit when the display unit is viewed from the direction of the image data displayed on the terminal device and the position of the reception unit based on the reception position information. The received image data is displayed on the display unit so that the direction of the image data displayed on the screen is the same direction,
When the terminal device transmits image data displayed on the terminal device to the display device, the terminal device transmits the image data using an address on the display device side that the display device has transmitted to the terminal device in advance. Display system. A display method using a display device connected to a portable terminal device,
A receiving step of receiving image data displayed on the terminal device from the terminal device by a plurality of receiving units arranged so as to be scattered around the periphery of the display device;
A storage step of storing reception position information that associates the terminal device with a position of a reception unit that has received image data from the terminal device;
A control step of setting the direction of the received image data and displaying the orientation on the display unit;
A display step of displaying the received image data on the display unit,
In the control step, based on the reception position information, the direction of the image data displayed on the terminal device and the direction of the image data displayed on the display unit when the display unit is viewed from the position of the reception unit And displaying the received image data on the display unit so that and are in the same direction.

Images