JP6531770B2 - Display control apparatus, display control method, and program - Google Patents

Description

The present invention relates to a display control device , a display control method, and a program.

Conventionally, as a technique for performing display control for displaying the same display information on a plurality of display media, for example, a conference by remote communication by connecting a plurality of information processing devices via a communication network such as the Internet The video conference system which has made it possible is realized (see, for example, Patent Document 1).
On the other hand, at the time of presentation, the presenter uses the laser pointer to place the spot light (visible light laser) on the screen at the explanation location on the screen when showing the projected image projected on the screen from the projector to the participants. There is a technique in which a presentation is given while instructing the explanation by irradiation (see, for example, Patent Document 2 and Patent Document 3).

JP 2012-54897 A Japanese Patent Application Laid-Open No. 11-85395 Unexamined-Japanese-Patent No. 2003-234983

  By the way, in the case of a conference system in which projectors as disclosed in Patent Literatures 2 and 3 are integrated with a conference system like Patent Literature 1, for example, projectors can be used as a plurality of information processing devices arranged in each department. By connecting each to project display information on the screen, it is possible to convey the same information to a large number of participants in real time. In such a conference system, for example, a participant (presenter) on one of the information processing apparatuses side irradiates spot light (visible light laser) onto the screen using a laser pointer to instruct an explanation part Even then, the participant on the other information processing apparatus side who is looking at another screen can not intuitively know which part is the explanation, and must search for the explanation part The problem of

The present invention is to be able to control the display in response to user operation on the display medium that display information is displayed.

The display control device according to the present invention is a determination unit that determines whether or not a predetermined external device is connected, and projects and displays first display information, and, if the external device is connected, the first display Control means for transmitting the second display information to the external device in order to control display of the second display information corresponding to the information on the external device side; and the first display information on the predetermined display medium by the control means when a predetermined instruction beam on said display medium even when being projected display is superimposed on the first display information, detects the position of the instruction beam is superimposed on the first display information as indicated position Detecting means, and the control means, when the indication position is detected by the detection means, comprises identification information indicating that the indication light is superimposed on the first display information. 1 Display information Display information combined at the position corresponding to the designated position is transmitted to the external device as the second display information, and projection display of the first display information not synthesized with the identification information is continued, and the detection is performed. The means is characterized in that the detection of the designated position is stopped when it is determined by the determination means that the external device is not connected.
Further, a display control method according to the present invention is a display control method in a display control apparatus that projects and displays display information, and a determination step of determining whether or not a predetermined external device is connected, and first display information Control to transmit the second display information to the external device in order to cause the external device to perform display control of the second display information corresponding to the first display information when the external device is connected. Step: In the case where the first display information is projected and displayed on the predetermined display medium by the control step, and in the case where the predetermined indication light is superimposed on the first display information on the display medium, includes a detection step for detecting a position of the instruction beam is superimposed on the first display information as indicated position, wherein the control step, place where the indicated position by the detecting step is detected , Said external display information synthesized in a position identification information indicating that the instruction beam is superimposed on the first display information corresponding to the indicated position in the first display information as the second display information While transmitting to the apparatus, the projection display of the first display information not combined with the identification information is continued, and in the detection step, it is determined that the external device is not connected in the determination step. The detection of the designated position is stopped.
The program according to the present invention may be a computer, a judging means for judging whether or not a predetermined external device is connected, the projection display of the first display information, and, if the external device is connected, the computer Control means for transmitting the second display information to the external device in order to control display of the second display information equivalent to the display information on the external device side, and the first display information is on the predetermined display medium by the control means when a predetermined instruction beam on said display medium even when being projected display is superimposed on the first display information, as indicated position a position where the instruction beam is superimposed on the first display information detect detecting means, to function as the control means, when the designated position is detected by the detecting means, the identification information indicating that the instruction beam is superimposed on the first display information The display information combined at the position corresponding to the designated position in the first display information is transmitted to the external device as the second display information, and the projection display of the first display information not combined with the identification information is Continuing, the detection unit is characterized by stopping detection of the designated position when it is determined by the determination unit that the external device is not connected.

According to the present invention, display can be controlled in accordance with a user operation on a display medium on which display information is displayed.

FIG. 1 is a block diagram showing a conference system in which a plurality of information display devices 1 are connected via a communication network 2. FIG. 2 is a block diagram showing basic components of a mobile terminal device (for example, a smartphone) that is the information display device 1; FIG. 2 is a block diagram showing basic components of a projector 3; (1), (2) is the figure which showed the projection image projected on the screen 5 by the side of each information display apparatus 1. FIG. The flowchart which showed the meeting process started by the information display apparatus 1 side when it switches to a meeting mode by a mode switching key. The flowchart which showed the meeting process following the operation | movement of FIG. The figure which showed the meeting system which connected the several information display apparatus 1 to the distribution apparatus 6 as a modification of this invention. As a modification of the present invention, as a means for indicating an arbitrary position on the screen 5, a case where an arbitrary position is indicated by drawing a handwritten mark on the screen (white board) 5 instead of the laser pointer 4 is shown. Figure.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 6.
FIG. 1 is a block diagram showing a conference system in which a plurality of information display devices 1 are connected via a communication network 2.
The information display apparatus 1 is an information processing apparatus such as a PC (personal computer) or a multifunctional portable terminal apparatus (for example, a smart phone) installed on the participant side of a conference, and in the example shown in the figure, one information In the case where the display device 1 is a PC, the case where the other information display device 1 is a portable terminal device is shown. However, as long as the display information can be controlled, the device is not limited to the PC and the portable terminal device. The number is also arbitrary.

  A plurality of such information display devices 1 are interconnected via the communication network 2 to construct a conference system capable of bi-directional communication. This conference system can be arbitrarily connected as long as it is an information display device 1 having access authority, and it is possible to freely participate in the conference at any time, and each department in the same company or each head office and each It is an on-premises communication system or a wide area communication system in which a branch office or the like is connected to perform a meeting. The communication network 2 includes, for example, a wireless local area network (LAN), a wide area network (WAN), and the like, and uses the network protocol as an internet protocol. In the figure, when the information display device 1 is a PC, it is connected by wire to the communication network 2, and when it is a portable terminal device, it is connected by wireless to the communication network 2.

  A projector 3 with a camera for a conference is connected by wire or wirelessly to each information display device 1 constituting the conference system. The laser pointer 4 irradiates a spot light (visible light laser) onto the screen 5 and is used when the presenter holds a hand and performs spot irradiation on an arbitrary position on the screen 5. The information display apparatus 1 displays, for example, a material (display information) arbitrarily selected as a presentation material on its own display screen, and transmits the display information to the connected projector 3 on the screen 5. Display the projection. In this case, the information display device 1 designated as the information distribution source (the material provider side) simultaneously transmits the same display information with all the other information display devices 1 as distribution destinations.

  That is, among the plurality of information display devices 1, the information display device 1 for which the distribution source designation key (not shown) for declaring that it is the distribution source of the information is operated becomes the distribution source of the information and displays all other information. The device 1 is the distribution destination, and the distribution source distributes the display information to the distribution destination. Here, every other information display apparatus 1 serving as a distribution destination transfers the received display information to the connected projector 3 each time the display information transmitted from the information display apparatus 1 of the distribution source is received. Projection on the screen 5. Hereinafter, all other information display devices 1 except the distribution source will be referred to as the information display device 1 of the distribution destination.

  The information display device 1 of the distribution source has a spot at an arbitrary position on the screen 5 by the laser pointer 4 in a state where display information is displayed on the display medium (screen 5 in the present embodiment) on the information display device 1 side. When it is illuminated and an instruction is given, a photographed image of the entire screen 5 photographed by the camera-equipped projector 3 is acquired, and the designated position is detected by analyzing the photographed image. Then, after a mark for identifying the indicated position detected is generated and synthesized at the corresponding position in the display information, the display information with the mark is transmitted to all the information display devices 1 at the distribution destination, thereby the screen It is made to project and display on 5. That is, the information display device 1 of the distribution source is all the screens 5 other than the screen 5 of the distribution source side among the screens 5 associated with the respective information display devices 1, that is, the screen 5 of the distribution destination side. The display control for displaying the marked display information is performed.

FIG. 2 is a block diagram showing basic components of a portable terminal device (smart phone) which is the information display device 1.
The information display device (smart phone) 1 is provided with a call function, a touch input function, an electronic mail function, an Internet connection function (Web access function) and the like as its basic functions, and has a CPU 11 as a core. The CPU 11 operates by power supply from the power supply unit 12 having a secondary battery, and controls the overall operation of the mobile terminal device according to various programs in the storage unit 13. The storage unit 13 is a program area for storing various programs such as the programs shown in the flowcharts of FIGS. 5 and 6 described later, a data area for storing various data required by the portable terminal device, and a work for temporary storage. It has an area. The storage unit 13 may be configured to include a recording medium such as an SD card, or may include a storage area on a predetermined server device (not shown) side.

  The wireless communication unit 14 is a communication unit in a wide area, and modulates voice and data to transmit radio waves and demodulates it into received voice and data when the call function, the electronic mail function, the Internet connection function, etc. are operated. To make calls and data communications. The wireless LAN unit 15 is a communication interface that transmits and receives data to and from another information display device 1 via a local communication network (not shown). The operation unit 16 has various push button types of keys such as a power button and a mode switching key for switching an operation mode (a conference mode to be described later). The connector unit for connecting the external connection unit 17 and the external device (projector 3, laser pointer 4), has, for example, High-Definition Multimedia Interface (HDMI) (registered trademark), and bidirectional communication with the external device It is possible. The display unit 18 is a high definition liquid crystal display or an organic EL (Electro Luminescence) display.

FIG. 3 is a block diagram showing basic components of the projector 3.
The projector 3 projects the display information for projection from the information display device 1 on the screen 5 and has the CPU 31 as a core. The CPU 31 has, as its peripheral devices, a projection light 32 lit by power supplied from an AC power supply (commercial power supply) and a light source adjustment unit 33 controlling the projection light to adjust its on / off and brightness. A transmissive liquid crystal panel 34 for projecting display information for projection, a drive unit 35 for driving the transmissive liquid crystal panel 34, a lens adjustment unit 36 for driving a projection lens, a power on / off switch, etc. The operation unit 37, the camera unit 38, the communication unit 39, and the like are provided.

  The camera unit 38 is a digital camera capable of photographing an object with high definition by forming an object image from an optical lens on an imaging device (CCD, CMOS, etc.), and in addition to still images, moving images can also be taken It is possible and arranged in parallel to the projection lens in order to be able to capture the entire screen 5. The communication unit 39 transmits the photographed image photographed by the camera unit 38 to the information display device 1 in response to a request from the information display device 1.

  Although not shown, the laser pointer 4 has a CPU as a core and is provided with a power supply unit, an operation unit, a laser irradiation unit and the like. The operation unit includes a power on / off switch, a shutter key for starting imaging, a color selection switch, etc. A plurality of colors of laser light emitted from the laser irradiation unit by the operation of the color selection switch For example, it can be switched to three types of red laser, green laser and blue laser). In this case, the user selects the color of the visible light laser by operating the color switching switch based on the visibility, the alerting ability, the instruction content, and the like. The laser irradiation unit irradiates a visible light laser and irradiates a spot on the screen 5. The spot irradiation part has a predetermined shape (for example, a circle), but the shape can be arbitrarily changed. It may be

FIG. 4 is a view exemplifying projection images projected on the screen 5 on each information display device 1 side.
FIG. 4A shows the case where the information display device 1 of the distribution source is a portable terminal device, and the display information for projection transmitted from the information display device 1 is projected on the screen 5 via the projector 3. It is the figure which showed the state. In this case, the case where the participant (presenter) at the distribution source side uses the laser pointer 4 to irradiate the visible light laser onto the screen 5 indicates an explanatory part. In the illustrated example, the "advanced function" of the display content is instructed as the explanation part, and in the figure, the circle near the instruction part indicates the spot irradiation part. In addition, if it is irradiation by a red laser, the irradiation part becomes red display.

  When the projector 3 receives the display information for projection transmitted from the information display device 1 of the distribution source, the projector 3 projects the display information on the screen 5 and activates the camera unit 38 to start photographing. The entire projected image on the image 5 is photographed, and the photographed image is transmitted from the communication unit 39 to the information display device 1. When the information display device 1 receives a captured image from the projector 3, the information display device 1 analyzes the captured image to detect a spot irradiation portion by a visible light laser as a designated position by a user operation and to identify the designated designated position. After the mark is generated and synthesized at the corresponding position in the display information being projected, it is distributed to each information display device 1 of the distribution destination.

  In FIG. 4 (2), in each information display device 1 of the distribution destination, a projection when the display information with a mark distributed from the information display device 1 of the distribution source is projected on the screen 5 through the projector 3 It is a figure showing an image. In the illustrated example, a star-shaped mark for identifying the indicated position is displayed in place of the indicated position (spot irradiation portion) on the distribution source side on the screen 5 of the distribution destination side. There is. In this case, if the visible light laser used on the distribution source side is a red laser, the star mark is also displayed in red. The mark for identifying the designated position is not limited to the star shape, and the shape thereof is arbitrary, and not limited to lighting display, and may be blinking display or the like.

Next, the operation concept of the information display device 1 in the present embodiment will be described with reference to the flowcharts shown in FIG. 5 and FIG. Here, each function described in these flowcharts is stored in the form of readable program code, and the operation according to the program code is sequentially executed. Also, operations according to the above-described program code transmitted via a transmission medium such as a network can be sequentially executed. That is, in addition to the recording medium, the program / data supplied externally via the transmission medium may be used to execute the operation specific to the present embodiment.
5 and 6 are flowcharts showing the outline of the operation of the characteristic part of the present embodiment in the overall operation of the information display device 1, and when the flow of FIGS. 5 and 6 is omitted, It returns to the main flow (not shown) of the overall operation.

FIG.5 and FIG.6 is the flowchart which showed the meeting process started by the information display apparatus 1 side, when it switches to the meeting mode by the above-mentioned mode switching key. The conference mode is an operation mode in the case where a conference is performed using the projector 3 among a plurality of information display devices 1. In this conference mode, when the participant starts his / her information display device 1 at the start of the conference, he / she operates a delivery source designation key (not shown) to declare it. It shall be.
First, the CPU 11 of the information display device 1 checks whether itself is specified as a distribution source of information by the operation of the distribution source designation key described above (step S1 in FIG. 5), and if the distribution source is not specified (step S1) It is determined that the self is a distribution destination to receive display information from the information display device 1 of another distribution source, and it is checked whether the display information transmitted from the information display device 1 of the distribution source has been received (Step S9), it is checked whether the conference mode has been canceled by the user operation (whether the conference is over) (step S11).

  Now, in the conference mode, when the user is designated as a distribution source of information (YES in step S1), a document file (display information selected arbitrarily as a display target by the user operation from the list of presentation materials) ) Is read from the storage unit 13 and a material file acquisition process to be displayed on the display unit 18 is performed (step S2). In this state, it is checked whether the conference mode has been canceled by the user operation (whether the conference has ended) (step S3) or whether the designation of the distribution source has been canceled by the user operation (step S4).

  If it is a distribution source in the conference mode (YES in step S4), the display information is projected and displayed on the screen 5 of its own. That is, when an arbitrary page (display information) is designated by the user operation as a display target from the material file (step S5), the display information of the designated page is read and transmitted to the projector 3 of its own. Projection display (step S6). Next, it is checked whether the other information display device 1 to be the distribution destination is connected (whether there is a distribution destination) (step S7), and if the distribution destination is not connected (NO in step S7), Returning to step S3, an operation is performed to sequentially project and display the display information of the designated page on the screen 5 via the projector 3 each time a page is designated (steps S5 and S6).

  On the other hand, if the information display device 1 of the distribution destination is connected (YES in step S7), the display information of the page designated as the display target is displayed on all the information display devices 1 of the distribution destination (all other than self A process of transmitting to the information display device 1) of (1) is performed (step S8). In this case, when the information display device 1 of the distribution destination receives the display information of the designated page transmitted from the information display device 1 of the distribution source (YES in step S9), it transmits the display information to its own projector 3 And projected on the screen 5 (step S10).

  As described above, in a state where the same display information is projected and displayed on the screen 5 of each information display device 1, the information display device 1 of the distribution source acquires a photographed image from its own projector 3 (step S12) And trapezoidal distortion correction and the like in accordance with the imaging angle of the camera 38 (step S13). Then, the photographed image is analyzed (step S14), the spot irradiated part is specified from the color, shape, size, and brightness (step S15), and it is checked whether the spot irradiated part is included in the photographed image (step S16). ). Now, if the spot irradiation part is not included (NO in step S16), the process returns to step S3 of FIG. 5, but if the spot irradiation part is included (YES in step S16), the spot color and the warp display position A process of detecting (designated position) is performed (step S17).

  Then, an instruction mark (for example, a star-shaped mark) having the same color (identical instruction content) as the spot color is generated (step S18), and the instruction mark (in the present embodiment, a star-shaped mark) is generated. The information is synthesized at the position in the designated page (display information) corresponding to the designated position (step S19), and the display information of the synthesized page is distributed to each information display device 1 of the distribution destination (step S20). The indication mark (star mark) is the same color as the spot color as described above, but the size is also substantially the same as the spot irradiation portion. Next, the process returns to step S3 in FIG. 5, and thereafter, the operation as the distribution source is repeated until the distribution source is canceled (steps S5 to S20).

  Here, when the distribution source is canceled (YES in step S4 in FIG. 5), the process proceeds to step S9 described above, and the distribution source functions as a distribution destination, and receives display information from the information display device 1 of the distribution source. When it is determined (YES in step S9), the display information is projected and displayed on the screen 5 via the projector 3 (step S10). Here, when the above-mentioned instruction mark (star shaped mark) is combined with the received display information, the projected image includes the instruction mark (star shaped mark). Next, the process proceeds to step S11 described above, and the process returns to step S1 until the conference mode is released and the conference is ended. However, when the conference mode is released (YES in steps S4 and S11), the flow of FIGS. Get out of.

  As described above, in the present embodiment, the information display device 1 of the distribution source is displayed on the screen 5 by the laser pointer 4 in a state where the display information is displayed on the display medium (screen 5) of each information display device. When an arbitrary position is indicated by spot irradiation, the indicated position is detected, and a mark (for example, a star mark) for identifying the indicated position is synthesized at the corresponding position in the display information, and then the distribution source The display control for displaying the marked display information is performed on all the other screens 5 except the screen 5 of FIG. 5 can be reflected, and it becomes possible to inform all participants of the indicated position in real time.

  Since the information display device 1 at the distribution source performs display control for displaying the display information on the plurality of screens 5, the designated position on the screen 5 is detected, so unnecessary detection becomes unnecessary. .

  When an arbitrary position is indicated by the laser pointer 4 on the screen 5, the information display device 1 of the distribution source detects the indicated content including the indicated position, and identifies the indicated content (for example, color). Since the mark is synthesized at the corresponding position in the display information, it is possible to notify in real time not only the designated position but also the contents of the instruction to all the participants.

  When an arbitrary position on the screen 5 is designated by the laser pointer 4, the information display device 1 of the distribution source acquires from the projector 3 a captured image obtained by capturing the display information displayed on the screen 5 and analyzes it. Since the designated position is detected by this, the designated position can be appropriately detected.

  When an arbitrary position on the screen 5 is instructed by spot irradiation, the information display device 1 of the distribution source analyzes the photographed image photographed by the projector 3 to analyze the color of the spot irradiated portion and the indicated position. Since the mark having the color is detected and synthesized at the position in the display information corresponding to the designated position, it is possible to inform all the participants of the designated contents by the color.

  In the embodiment described above, a conference system in which a plurality of information display devices 1 are connected via the communication network 2 is exemplified, but it is a conference system connected to the distribution device 6 as shown in FIG. May be For example, each information display device 1 installed for each group in charge in the same department may be connected to the distribution device 6 to construct a conference system. The distribution device 6 has an input terminal 61 and a plurality of output terminals 62, and one of the information display devices 1 among the plurality of information display devices 1 serves as a distribution source of information, and all the others. When the display information transmitted from the distribution source is taken in via the input terminal 61 in the state where the information display device 1 is fixedly connected as the distribution destination, it is the distribution destination via the plurality of output terminals 62. It has a function of performing an operation of distributing to all the information display devices 1. By providing such a distribution device 6, it becomes possible to distribute the same display information in real time, as in the above embodiment.

  In the embodiment described above, the laser irradiation by the laser pointer 4 is used to indicate an arbitrary position in the projection image displayed on the screen 5, but by directly handwriting the mark on the screen 5 An arbitrary position in the projection image may be directly indicated. In this case, for example, a white board (screen board) with white surface processing is used as the screen 5 so that handwriting can be performed by a marker pen or the like, and the information display device 1 obtains a photographed image obtained from the projector 3 The handwritten portion and its position may be detected by analysis. As a result, it is possible to transmit the display information with the handwritten mark directly drawn by handwriting on the screen 5 to each information display device 1 of the distribution destination.

FIG. 8 is a view showing a case where, for example, a circular mark is drawn by hand so as to surround an arbitrary position in the projection image displayed on the screen (white board) 5.
Here, the information display device 1 of the distribution source detects the handwritten mark by analyzing the photographed image on the screen (white board) 5 and also detects the mark position as an indication position, and the detected handwriting The mark may be combined with the position in the display information corresponding to the mark position and distributed to the information display device 1 of each distribution destination. Thereby, when an arbitrary mark is drawn by handwriting on the screen (white board) 5, the handwritten mark can be projected as it is on the screen 5 on the delivery destination side. The same mark will be displayed on the display position as well as the shape, color, pattern and the like.

  In the embodiment described above, an arbitrary position in the projected image displayed on the screen 5 is indicated by the laser irradiation from the laser pointer 4. However, the present invention is not limited to the laser pointer 4, for example, a screen An arbitrary position on 5 may be indicated directly by the tip of a pointer (not shown) held by the presenter, or directly indicated by the tip of its own finger. Also in this case, the information display device 1 may recognize the tip of the pointer or the finger by analyzing the photographed image acquired from the projector 3. In this case, the information display device 1 at the distribution source combines the mark (for example, a star-shaped mark) for identifying the designated position to the corresponding position in the display information as in the above-described embodiment, and then each of the distribution destinations. It may be distributed to the information display device 1. As described above, the same effects as those of the above-described embodiment can be obtained just by performing simple instructions with the pointing rod or the finger.

  In the embodiment described above, the screen 5 is used as a display medium for display information, but the display unit 18 of its own provided in each information display device 1 or an external display device connected externally is used as a display medium It may be

  In the embodiment described above, the color of the laser beam emitted from the laser pointer 4 is recognized as the instruction content, but the shape, the pattern, etc. are further recognized as the instruction content, and the mark having the same shape, the pattern, etc. May be generated and synthesized into display information.

  In addition, the laser pointer 4 is provided with a blinking cycle switching switch, and the cycle of the pulse wave (flashing cycle) emitted from the laser pointer 4 by this switch operation is plural (for example, three types of high speed blinking, medium speed blinking, low speed blinking) It may be switchable to In this case, if the camera unit 38 of the projector 3 shoots a moving image of the screen 5 and transmits this moving image to the information display device 1, the information display device 1 analyzes at the high speed by analyzing the moving image. Fast blink and slow blink can be recognized as instruction content. In this case, a mark of a type corresponding to the blinking cycle (instruction content) may be generated, and the display information with the mark may be distributed to all the information display devices 1 at the distribution destinations.

  In the embodiment described above, the information display device 1 is applied to a PC or a portable terminal device. However, the present invention is not limited to this, and a tablet terminal device, a digital camera, a music player, or the like may be used. In addition, as the information display device 1, a projector and a camera may be incorporated.

  Further, the “device” and the “section” described in the above-described embodiment may be separated into a plurality of cases according to functions, and is not limited to a single case. Further, each step described in the above-described flowchart is not limited to the time-series processing, and a plurality of steps may be processed in parallel or processed independently.

As mentioned above, although embodiment of this invention was described, this invention is not limited to this, The invention described in the claim, and the range of equivalence are included.
Hereinafter, the invention described in the claims of the present application is appended.
(Supplementary note)
(Claim 1)
The invention according to claim 1 is
An information display device that performs display control for displaying the same display information on a plurality of display media,
A detection unit that detects an indicated position when an arbitrary position is indicated by a user operation on any of the display media while the display information is displayed on the plurality of display media;
Combining means for combining a mark for identifying the designated position detected by the detection means with the corresponding position in the display information;
Display control for displaying the display information with a mark combined by the combining means on the display medium other than the display medium for which an arbitrary position is designated by the user operation among the plurality of display media Control means to perform,
An information display apparatus characterized by comprising:
(Claim 2)
The invention according to claim 2 is the information display device according to claim 1,
The information processing apparatus further comprises determination means for determining whether or not display control has been performed to display the display information on the plurality of display media.
The detection unit detects the designated position when it is determined by the determination unit that display control for displaying display information on a plurality of display media is performed.
It is an information display device characterized by having made it.
(Claim 3)
The invention according to claim 3 is the information display apparatus according to claim 1 or 2.
The detection means detects an instruction content including an indicated position when an arbitrary position is indicated by a user operation on the display medium.
The combining means combines a mark for identifying an instruction content detected by the detecting means at a corresponding position in the display information.
It is an information display device characterized by having made it.
(Claim 4)
The invention according to claim 4 is the information display device according to any one of claims 1 to 3.
The apparatus further comprises an image acquisition unit that acquires a photographed image obtained by photographing display information displayed on the display medium when an arbitrary position on the display medium is instructed by a user operation.
The detection unit detects a designated position instructed by a user operation by analyzing a photographed image acquired by the image acquisition unit.
It is an information display device characterized by having made it.
(Claim 5)
The invention described in claim 5 is the information display device according to claim 4,
The detection means analyzes the photographed image acquired by the image acquisition means when an arbitrary position on the display medium is instructed by spot irradiation, or when instructed by a tip of a pointer rod or a finger. Detects the indicated position by
It is an information display device characterized by having made it.
(Claim 6)
The invention described in claim 6 is the information display device according to claim 4,
When an arbitrary position on the display medium is instructed by the irradiation of the spot light, the detection means detects the color of the spot irradiation portion by analyzing the photographed image acquired by the image acquisition means. Detect the indicated position,
The combining means combines a mark having a color detected by the detecting means at a position in the display information corresponding to the designated position.
It is an information display device characterized by having made it.
(Claim 7)
The invention according to claim 7 is the information display device according to claim 4;
The display medium is a screen board on which an image projected by a projector is displayed.
The detection means detects the mark handwritten on the screen board by analyzing the photographed image of the screen board acquired by the image acquisition means and detects the mark position as an indication position, and the synthesizing means Combining the handwritten mark detected by the detection means with the position in the display information corresponding to the mark position;
It is an information display device characterized by having made it.
(Claim 8)
The invention according to claim 8 is
For the computer,
A function of performing display control for displaying the same display information on a plurality of display media;
A function of detecting an indicated position when an arbitrary position is indicated by a user operation on any of the display media while the display information is displayed on the plurality of display media;
A function of combining a mark for identifying the detected designated position with the corresponding position in the display information;
The display control for displaying the combined display information with a mark is performed on all the display media other than the display media for which the arbitrary position is designated by the user operation among the plurality of display media. Function,
Is a program for realizing

1 information display device 2 communication network 3 projector 4 laser pointer 5 screen 11 CPU
13 storage unit 14 wireless communication unit 15 wireless LAN unit 16 operation unit 17 external connection unit 18 display unit 31 CPU
38 Camera unit 39 Communication unit

Claims (4)

A determination unit that determines whether or not a predetermined external device is connected;
The first display information is projected and displayed, and when the external device is connected, the second device is controlled to display and control second display information corresponding to the first display information on the external device side. Control means for transmitting to the
In the case where the first display information is projected and displayed on the predetermined display medium by the control means, and in the case where the predetermined instruction light is superimposed on the first display information on the display medium, the instruction light A detection unit that detects, as a designated position, a position where the second display information is superimposed on the first display information
Equipped with
The control means corresponds to the indication position in the first display information, when the indication position is detected by the detection means, identification information indicating that the indication light is superimposed on the first display information (C) transmitting, as the second display information, the display information synthesized at the predetermined position to the external device, and continuing the projection display of the first display information not synthesized with the identification information;
The detection unit stops detection of the designated position when it is determined by the determination unit that the external device is not connected.
A display control device characterized by The instruction light is spot light emitted from a laser pointer so as to overlap the first display information on the display medium.
The display control device according to claim 1, characterized in that: A display control method in a display control apparatus for projecting and displaying display information, comprising:
A determination step of determining whether a predetermined external device is connected;
The first display information is projected and displayed, and when the external device is connected, the second device is controlled to display and control second display information corresponding to the first display information on the external device side. Control steps to send to
In the case where the first display information is projected and displayed on the predetermined display medium by the control step, and the predetermined instruction light is superimposed on the first display information on the display medium, the instruction light Detecting, as a designated position, a position superimposed on the first display information;
Have
In the control step, when the indication position is detected in the detection step, identification information indicating that the indication light is superimposed on the first display information corresponds to the indication position in the first display information (C) transmitting, as the second display information, the display information synthesized at the predetermined position to the external device, and continuing the projection display of the first display information not synthesized with the identification information;
The detection step stops detection of the designated position when it is determined in the determination step that the external device is not connected.
A display control method characterized in that. Computer,
Determination means for determining whether or not a predetermined external device is connected,
The first display information is projected and displayed, and when the external device is connected, the second device is controlled to display and control second display information corresponding to the first display information on the external device side. Control means to send to
In the case where the first display information is projected and displayed on the predetermined display medium by the control means, and in the case where the predetermined instruction light is superimposed on the first display information on the display medium, the instruction light A detection unit configured to detect, as a designated position, a position where the first display information is superimposed
To act as
The control means corresponds to the indication position in the first display information, when the indication position is detected by the detection means, identification information indicating that the indication light is superimposed on the first display information (C) transmitting, as the second display information, the display information synthesized at the predetermined position to the external device, and continuing the projection display of the first display information not synthesized with the identification information;
The detection unit stops detection of the designated position when it is determined by the determination unit that the external device is not connected.
A program characterized by

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