JP2016186693A - Display device and control method for display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect the operation for a plurality of regions of a plurality of devices in accordance with the setting of the operated device.SOLUTION: A display device includes: a projection unit 20 that displays an image on a screen SC; a position calculation unit 232 that detects the position of the operation for the screen SC performed by an indication body 70; an identification unit 233 that acquires the identification information of the indication body 70 whose operation has been detected by the position calculation unit 232; a storage unit 202 that stores the setting information in which an operation region set as a region on the screen SC where the operation by the indication body 70 is possible, the operation executable by the indication body 70, and the identification information for identifying the indication body 70 are co-related with each other; and a control unit 201 that determines whether the operation is valid or not on the basis of the position of the operation detected by the position calculation unit 232, the identification information of the indication body 70 acquired by the identification unit 233, and the setting information stored in the storage unit 202.SELECTED DRAWING: Figure 2

Description

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

2. Description of the Related Art Conventionally, an apparatus capable of performing input by performing a handwriting operation using a pen-type device or the like is known (see, for example, Patent Documents 1 and 2).
The information data operation function processing device of Patent Document 1 receives a pen ID transmitted from a touch pen that has touched the touch panel, and corresponds to an unrestricted function according to function restriction information associated with the received pen ID. Process the operation.
When the electronic information display device of Patent Document 2 receives an operation with the electronic pen, the electronic information display device determines whether the area where the received operation is performed is an area assigned to the electronic pen that has received the operation. Then, when the area where the operation with the electronic pen is accepted is an assigned area or a common area, the operation with the accepted electronic pen is validated.

JP-A-11-65766 JP 2000-222133 A

When operations are performed simultaneously using a plurality of devices, the operation contents of the devices may interfere with each other and affect the operations of others. For this reason, there has been a demand for setting an area in which an operation can be performed for each device and an executable operation.
The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to detect operations on a plurality of areas by a plurality of devices according to settings of the operated devices.

In order to achieve the above object, a display device according to the present invention includes a display unit that displays an image on a display surface, a detection unit that detects a position of an operation on the display surface performed by an indicator, and an operation performed by the detection unit. An acquisition unit that acquires identification information of the indicator in which the indicator is detected, an operation area set as an area that can be operated by the indicator on the display surface, an operation that can be performed by the indicator, and the instruction A storage unit that stores setting information in which identification information for identifying a body is associated; a position of an operation detected by the detection unit; an identification information of the indicator acquired by the acquisition unit; A determination unit that determines whether or not the operation is an effective operation based on the stored setting information, and a control that executes a process corresponding to the operation that is determined to be effective by the determination unit With department
According to the present invention, it is determined whether or not the operation is an effective operation based on the detected position of the operation and the acquired identification information of the indicator. , Can be detected according to the settings of the operated device.

The display device may further include an operator identification unit that identifies an operator who operates the indicator whose operation is detected by the detection unit, and the storage unit is identified by the operator identification unit. The operator authority information associated with the executable operations is stored for each of the operators, and the determination unit detects the operation when the position of the operation of the indicator is detected by the detection unit. Based on the identification result of the operator identification unit and the operator authority information, it is determined whether or not the operation detected by the detection unit is an effective operation.
According to the present invention, it is possible to determine that the operation of an operator having the operation authority for the operation area is valid and process it.

In the display device according to the aspect of the invention, the determination unit may be based on the operator authority information even if the operation is determined not to be an effective operation based on the setting information stored in the storage unit. The operation determined to be an effective operation is determined to be effective.
According to the present invention, it is possible to determine that the operation of an operator having the operation authority for the operation area is valid and process it.

Further, according to the present invention, in the display device, the operator identifying unit identifies the operator by receiving operator identification information transmitted from the indicator.
According to the present invention, an operator can be easily identified.

In the display device according to the present invention, the indicator acquires device information from a device possessed by the operator, and transmits the acquired device information as the operator identification information to the display device.
According to the present invention, since the operator's authority can be set by the operator having the device in which the device information is registered, the authority can be easily set.

The control method of the display device of the present invention detects the position of the operation performed by the indicator on the display surface on which the image is displayed, acquires the identification information of the indicator that has performed the detected operation, Setting information in which the obtained identification information of the indicator, an operation area set as an area that can be operated by the indicator on the display surface, and an operation that can be executed by the indicator in the operation area are set And whether or not the operation is an effective operation based on the detected position of the operation, and when it is determined that the operation is effective, a process corresponding to the operation is executed. .
According to the present invention, it is determined whether or not the operation is an effective operation based on the detected position of the operation and the acquired identification information of the indicator. , Can be detected according to the settings of the operated device.

1 is a schematic configuration diagram of a display system. The block diagram which shows the structure of each apparatus of a display system. The figure which shows the structure of the table which registered registration indicator information. The figure which shows the structure of the table which registered operator authority information. The flowchart which shows operation | movement of a projector. The flowchart which shows operation | movement of a projector.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a schematic configuration of a display system 1 according to an embodiment to which the present invention is applied.
The display system 1 includes a plurality of projectors 2 (display devices). There is no limitation on the number of projectors 2 provided in the display system 1, and there may be only one projector or three or more projectors. Here, an example in which two projectors 2 are installed side by side will be described. . The two projectors 2 are installed above the screen SC and project an image downward.

  In the following description, each of the two projectors is referred to as projectors 2a and 2b, and the projectors 2a and 2b are collectively referred to as projector 2. The projectors 2a and 2b independently project images onto the screen SC (display surface). For example, the projector 2b may be turned off while the projector 2a is turned on to project an image.

  The projectors 2a and 2b are arranged side by side with respect to one screen SC as shown in FIG. The projector 2a projects (displays) the projection image 25a on the projection area 24a of the screen SC, and the projector 2b projects (displays) the projection image 25b on the projection area 24b. The screen SC is horizontally long with respect to the projection areas 24a and 24b, and the projection areas 24a and 24b are arranged side by side. Further, a boundary 24c between the projection area 24a and the projection area 24b may be in contact with or close to each other as shown in FIG. 1, or a part thereof may overlap. Further, the position and size of the projection image 25a are not limited as long as they are inside the projection area 24a, and the position and size of the projection image 25b are not limited as long as they are inside the projection area 24b.

  In the display system 1, an operation for instructing a position by the indicator 70 can be performed. The indicator 70 is, for example, a pen-type device having a rod-shaped shaft portion, and is used by an operator (user) operating the projectors 2a and 2b. The projector 2a detects the position pointed at the tip of the indicator 70 as the operation position within the projection area 24a. Further, the projector 2b detects the position pointed to by the tip of the indicator 70 as the operation position in the projection area 24b. In the display system 1, a plurality of indicators 70 can be used. In the present embodiment, an example in which three indicators 70a, 70b, and 70c are used will be described. In the following description, each of the three indicators 70 is referred to as indicators 70a, 70b, and 70c, and these are collectively referred to as indicators 70.

  The indicator used in the display system 1 is not limited to the indicator 70, and may be a rod-like indicator such as an indicator rod (not shown), or the operator's hand or finger is detected as the indicator. You can also. In this case, it is desirable that the indicator can be identified for each operator. That is, it is desirable that the color or the surface pattern is different so that it can be identified in a captured image captured with visible light as described later. For example, when an operator's finger is used as an indicator, A ring having a color or a pattern or a cap-shaped jig may be attached to a person's finger.

  Each of the projectors 2 a and 2 b has a drawing function for drawing corresponding to the operation position of the indicator 70 and a pointer function for performing a GUI (Graphical User Interface) operation based on the operation position of the indicator 70. FIG. 1 illustrates a state in which the projector 2a executes a drawing function and the projector 2b executes a pointer function. By the drawing function of the projector 2a, a straight line, a curved line, or a figure such as a circle or a rectangle is drawn in the projection area 24a along the locus of the operation of the indicator 70, and is displayed as a projected image 25a. Further, by the pointer function of the projector 2b, the pointer P is displayed at the operation position of the indicator 70 in the projection area 24b, and the menu bar M as an operation image for GUI operation is displayed.

The indicators 70a, 70b, and 70c are configured such that each of the projectors 2a and 2b can identify each indicator. For example, when the projector 2 identifies each of the indicators 70a, 70b, and 70c based on a captured image captured by visible light, the indicators 70a, 70b, and 70c have shapes, colors, or surface patterns. Different specifications. Further, for example, when the projector 2 performs wireless communication with each of the indicators 70a, 70b, and 70c to identify the indicators 70a, 70b, and 70c, the indicators 70a, 70b, and 70c give unique identification information to the projector 2. Send to. In the present embodiment, as will be described later, each of the projectors 2a and 2b performs imaging with visible light, detects the indicator 70 based on the captured image, and identifies the detected indicators 70a, 70b, and 70c.
In the display system 1, identification information for identifying each of the indicators 70a, 70b, and 70c is defined. This identification information may be directly attached to each of the indicators 70a, 70b, and 70c. For example, the indicator 70a, 70b, or 70c may be provided with a barcode or two-dimensional code obtained by encoding the identification information, and the projector 2 may acquire the identification information based on the captured image. When the indicators 70a, 70b, and 70c communicate with the projectors 2a and 2b, the indicators 70a, 70b, and 70c can transmit identification information to the projectors 2a and 2b.

  In the present embodiment, each of the projectors 2a and 2b stores in advance identification information of the indicators 70a, 70b, and 70c. When the projectors 2a and 2b identify the indicators 70a, 70b, and 70c based on the captured images, the projectors 2a and 2b can specify identification information corresponding to the indicators 70a, 70b, and 70c. The identification information (ID) of the indicator 70a is “001”, the identification information of the indicator 70b is “002”, and the identification information of the indicator 70c is “003”.

  FIG. 2 is a block diagram of each device constituting the display system 1, and shows functional blocks of the projectors 2a and 2b. In the following, since the projector 2a and the projector 2b have almost the same configuration, the configuration of the projector 2a will be described as a representative.

The projector 2a includes an image input unit 205 connected to an external image supply device (not shown). The image input unit 205 includes a connector for connecting a cable and an interface circuit (both not shown) or a wireless communication interface (not shown), and receives image data output from the image supply device.
The image input unit 205 may be a data communication interface such as Ethernet (registered trademark), IEEE 1394, USB, or the like. Further, an interface for image data such as MHL (registered trademark), HDMI (registered trademark), and DisplayPort (trademark) may be used. Further, a wireless communication interface such as a wireless LAN or Bluetooth (registered trademark) may be provided.
The image input unit 205 outputs digital image data input from an image supply device (not shown) to the image processing unit 206.

The projector 2a includes a projection unit 20 that forms an optical image. The projection unit 20 includes a light source 21, a light modulation device 22, and a projection optical system 23. The light source 21 includes a light source composed of a xenon lamp, an ultra high pressure mercury lamp, an LED (Light Emitting Diode), a laser light source, or the like. Further, the light source 21 may include a reflector and an auxiliary reflector that guide light emitted from the light source to the light modulation device 22. Furthermore, a lens group (not shown) for enhancing the optical characteristics of the projection light, a polarizing plate, or a light control element for reducing the amount of light emitted from the light source on the path to the light modulation device 22 may be provided. .
The light modulation device 22 includes, for example, three transmissive liquid crystal panels corresponding to the three primary colors of RGB, and generates image light by modulating light transmitted through the liquid crystal panel. The light emitted from the light source 21 is separated into three color lights of RGB, and each color light enters each corresponding liquid crystal panel. The color light modulated by passing through each liquid crystal panel is combined by a combining optical system such as a cross dichroic prism and emitted to the projection optical system 23.

  The projection optical system 23 includes a lens group that projects the image light modulated by the light modulation device 22 in the direction of the screen SC and forms an image on the screen SC. Further, the projection optical system 23 may include a zoom mechanism for enlarging / reducing the projected image on the screen SC and adjusting the focus, and a focus adjusting mechanism for adjusting the focus.

  The projection unit 20 is connected to a light source driving unit 207 that turns on and off the light source 21 under the control of the control unit 201 and a light modulation device driving unit 208 that operates the light modulation device 22 according to the control of the control unit 201. The light source driving unit 207 may have a function of adjusting the light amount of the light source 21.

  The projector 2a includes an image processing system that processes an image projected by the projection unit 20. The image processing system includes a control unit 201, a storage unit 202, an input detection unit 204, an image input unit 205, an image processing unit 206, a light source driving unit 207, a light modulation device driving unit 208, an image composition unit 213, and a wireless communication unit 209. And a communication unit 211. Each unit constituting the image processing system is connected to each other via a bus 210 so that data communication is possible. In addition, a frame memory 214 is connected to the image composition unit 213. The frame memory 214 and other data processing units may be included in the image processing system.

The projector 2 includes a wireless communication unit 209. The wireless communication unit 209 includes an antenna (not shown), an RF (Radio Frequency) circuit, and the like, and performs wireless communication with the indicator 70 and an external device under the control of the control unit 201. The wireless communication unit 209 performs wireless communication such as a wireless local area network (LAN) or Bluetooth (registered trademark).
The indicator 70 transmits identification information for identifying the operator (hereinafter referred to as operator identification information) to the projector 2. In this case, the operator possesses a device (not shown) having a wireless communication interface, and the device and the indicator 70 execute wireless communication such as a wireless LAN or Bluetooth. Examples of this type of device include a mobile phone, a smartphone, a PDA (Personal Digital Assistant), a tablet computer, and the like, but it may be a wristwatch-type body-mounted (wearable) device or the like, and a smaller wireless device. It may be a communication device. In this example, when the indicator 70 detects a signal output from a device held by the operator, the indicator 70 transmits device information acquired from the device to the projector 2 as operator identification information.

  The projector 2a has a communication unit 211. The communication unit 211 is an interface for performing data communication, and is connected to the communication line 3 in this embodiment. The communication unit 211 transmits / receives various data to / from the projector 2b via the communication line 3 according to the control of the control unit 201. In the present embodiment, the communication unit 211 is a wired interface that connects a cable (not shown) constituting the communication line 3. The communication unit 211 may be a wireless communication interface that performs wireless communication such as a wireless LAN or Bluetooth. In this case, part or all of the communication line 3 is constituted by a wireless communication line.

  The projector 2a includes a position detection unit 203 that detects an operation by the indicators 70a, 70b, and 70c and an operation position. The position detection unit 203 includes an imaging unit 231, a position calculation unit 232, and an identification unit 233.

The imaging unit 231 is a digital camera that images the screen SC, and generates captured image data. The imaging range, that is, the angle of view of the imaging unit 231 is preferably the entire screen SC or a range including the screen SC, and includes at least the projection region 24a (FIG. 1).
The imaging unit 231 is not limited to the one that performs imaging with visible light, and may be a camera that captures infrared light. In this case, the indicators 70a, 70b, and 70c only need to have a identifiable difference when imaged with infrared light. For example, a light emitting unit (not shown) that emits infrared light may be provided, and the light emitting shape, blinking pattern, and the like of the light emitting unit may be different between the indicators 70a, 70b, and 70c.

  The position calculation unit 232 detects the operation position indicated by the operation of the indicator 70a, 70b, or 70c. The position calculation unit 232 analyzes the captured image of the imaging unit 231 and detects the images of the indicators 70a, 70b, and 70c from the captured image. When the captured image includes any one of the indicators 70a, 70b, and 70c, the position calculation unit 232 detects the detected position of the tip of the indicator 70 as the operation position. The position calculation unit 232 outputs the operation position to the control unit 201 as data representing coordinates in the projection area 24a.

The identification unit 233 identifies the indicators 70a, 70b, and 70c. The identification unit 233 identifies which of the indicators 70 a, 70 b, and 70 c is the indicator that has designated the operation position detected by the position calculation unit 232, and outputs the identification result to the control unit 201.
In the present embodiment, the identification unit 233 analyzes the captured image data of the imaging unit 231 and detects the images of the indicators 70a, 70b, and 70c from the captured image. As described above, since the indicators 70a, 70b, and 70c have different appearances so that they can be identified in a captured image by visible light, the identification unit 233 can perform identification based on the captured image.

  The projector 2a stores information associating the characteristics of the images of the indicators 70a, 70b, and 70c in the captured image with the identification information of the indicators 70a, 70b, and 70c as the correspondence information 225 in the storage unit 202. After detecting the image of the indicator 70 from the captured image, the identification unit 233 acquires identification information (001, 002, 003 in FIG. 1) based on the correspondence information 225.

The control unit 201 includes a CPU, a ROM, a RAM (all not shown) and the like, executes a control program stored in the ROM or the storage unit 202, and controls each unit of the projector 2a. The control unit 201 includes a projection control unit 221, an operation acquisition unit 222, a drawing processing unit 223, and an authentication processing unit 224.
The storage unit 202 is a rewritable nonvolatile memory such as a flash memory or an EEPROM. The storage unit 202 stores a control program for controlling the operation of the projector 2, various setting data for defining the operation conditions of the projector 2a, and the like. In the storage unit 202, correspondence information 225, a drawing object 226, registration indicator information 227, operator authority information 228, and non-registration indicator information 229 are stored. The drawing object 226 will be described later.

FIG. 3 shows a configuration of a table in which the registration indicator information 227 is registered.
The registered indicator information 227 is information in which identification information for identifying the indicator 70 that is permitted to operate the projection area 24a of the projector 2a is associated with the type of operation that is permitted for the indicator 70 of the identification information. is there. In the table in which the registration indicator information 227 is registered, the operation type and the availability setting are registered in association with the identification information of the indicator 70.
The operation types include attribute change, erasure / drawing switching, menu bar M operation, mode switching, erasure protection, and the like.
The attribute change is information indicating whether or not the change of attributes such as the color, thickness, and shape of the character is permitted when the character 70 is drawn by the indicator 70. Switching between erasing and drawing is information indicating whether or not switching between drawing on the projection area 24a and erasing of drawn characters and the like is permitted. The operation of the menu bar M is information indicating whether or not the operation of the menu bar M by the indicator 70 is permitted. The mode switching is information indicating whether or not switching between the PC mode and the interactive mode is permitted. In the PC mode, the projector 2a performs an operation of projecting an image input from a connected personal computer (not shown) onto the screen SC, and drawing in the projection area 24a is performed even if the operation of the indicator 70 is detected. Absent. In the interactive mode, the projector 2a performs an operation of projecting an image input from a personal computer (not shown) on the screen SC, detects an operation of the indicator 70, and performs drawing on the projection area 24a. The erasure protection is a mode that restricts erasure of characters and figures drawn in the projection area 24a.
Registration indicator information 227 is registered in the storage unit 202 of the projector 2b. In the registered indicator information 227, information of the indicator 70 that is permitted to operate the projection area 24b of the projector 2b is registered.

FIG. 4 is a diagram showing a configuration of a table in which the operator authority information 228 is registered.
The operator authority information 228 is information in which the authority of the operator who operates the indicator 70 is set. That is, it is device information transmitted from the indicator 70.
Note that identification information for identifying the operator may be set separately from the device information, and the correspondence between the identification information and the device information may be stored in the storage unit 202.
In the table in which the operator authority information 228 is registered, the operation type and the availability setting are registered in association with the operator identification information for identifying the operator. Since the operation type and availability setting are the same as the registration indicator information 227, the description thereof is omitted.

In the registration indicator information 227 and the operator authority information 228, the operator authority information 228 has priority. For example, when an operator who is permitted to operate the menu bar M by the operator authority information 228 operates the indicator 70 whose operation of the menu bar M is restricted by the registered indicator information 227, the menu bar by the indicator 70 is displayed. M operations are allowed. Further, if the operator authority information 228 is an operator registered in the projector 2a or 2b, the projection area 24a or 2b of the projector 2a or 2b can be used even if the indicator 70 in which the registration indicator information 227 is not registered is used. Can be drawn.
When an operator who does not register the operator authority information 228 in the projector 2a or 2b uses the indicator 70, the indicator 70 needs to be registered in the projector 2a or 2b.

Further, by registering the operator authority information 228 in both the projector 2a and the projector 2b, for example, even if the indicator 70 is restricted in operation in the projection area 24a of the projector 2a, the operator authority information The operation permitted by 228 can be performed by the indicator 70.
For example, when the projectors 2a and 2b are used in a school or the like, by registering the operator authority information 228 in which the teacher's operation authority is set in the projector 2a and the projector 2b, the teacher can select an arbitrary indicator 70. It can be used to draw on the projection area 24a of the projector 2a and the projection area 24b of the projector 2b.
In addition, when handing the indicator 70 to a student and drawing it in the projection area 24a of the projector 2a, the indicator 70 in which the registered indicator information 227 is registered in the projector 2a corresponding to the projection area 24a to be drawn is assigned to the corresponding student. Hand it over to
For example, in a case where the student A is to write the answer to the problem in the projection area 24a and the student B is to write the answer to the problem in the projection area 24b, the instruction to which the registration indicator information 227 is registered in the projector 2a is given to the student A. The body 70 is handed over, and the student 70 is handed over the pointer 70 in which the registered pointer information 227 is registered in the projector 2b.
The indicator 70 handed to the student A cannot be drawn in the projection area 24b of the projector 2b because the registered indicator information 227 is registered only in the projector 2a. The indicator 70 handed to the student B cannot be drawn in the projection area 24a of the projector 2a because the registered indicator information 227 is registered only in the projector 2b.

  Non-registered indicator information 229 is an operation performed by an indicator 70 whose registered indicator information 227 is not registered in the projector 2a or 2b, and an operator who does not register the operator authority information 228 performs an operation. Information set for. When an operator whose operator authority information 228 is not registered performs an operation with the indicator 70 whose registered indicator information 227 is not registered, the projector 2a or 2b detects according to the unregistered indicator information 229. The operation of the indicator 70 is processed.

The unregistered indicator information 229 includes information on drawing settings, drawing attributes, and erasure settings.
For example, the drawing setting is performed by using an indicator 70 whose registration indicator information 227 is not registered in the projector 2a, and an operator whose operator authority information 228 is not registered in the projector 2a performs drawing in the projection area 24a. This is a setting for whether or not this drawing is processed by the projector 2a. When the drawing setting is set to “permitted drawing”, an operation using the indicator 70 whose registration indicator information 227 is not registered in the projector 2a is performed by an operator whose operator authority information 228 is not registered in the projector 2a. Even so, drawing in the projection area 24a becomes possible.
The drawing attribute is information in which a drawing attribute when the drawing setting is set to “drawing permission” is set. For example, the operation by the indicator 70 in which the registered indicator information 227 is registered is drawn by drawing with a different color, a different line type, a different line thickness, and intentionally changing the attribute. The operator can be distinguished.

The input detection unit 204 detects an operation by a remote controller (not shown) functioning as an input device and an operation panel of the projector 2a. When the input detection unit 204 detects a remote control operation or an operation panel operation, the input detection unit 204 generates operation data indicating the detected operation content and outputs the operation data to the control unit 201.
The above-described correspondence information 225, registration indicator information 227, operator authority information 228, and non-registration indicator information 229 can be changed by the operator by operating the remote controller or the operation panel. Can also be added.

  The image processing unit 206 processes the image data input from the image input unit 205 under the control of the control unit 201, and outputs the processed image data to the image composition unit 213. The processing executed by the image processing unit 206 includes, for example, resolution conversion (scaling) processing or resizing processing, shape correction processing such as distortion correction, digital zoom processing, color tone correction processing, and luminance correction processing. The image processing unit 206 executes processing designated by the control unit 201 and performs processing using parameters input from the control unit 201 as necessary. Of course, it is also possible to execute a combination of a plurality of processes.

  The image composition unit 213 develops the processed image data output from the image processing unit 206 in the frame memory 214. Further, the image composition unit 213 acquires the image data generated by the control unit 201 and develops it in the frame memory 214. Here, the image synthesis unit 213 synthesizes the image data output from the image processing unit 206 and the image data generated by the control unit 201 in the frame memory 214. The image composition unit 213 reads the synthesized image data from the frame memory 214 and outputs the display image data to the light modulation device driving unit 208.

  The light modulation device driving unit 208 is connected to the liquid crystal panel of the light modulation device 22. The light modulation device driving unit 208 generates R, G, and B image signals based on the display image data input by the image synthesis unit 213, drives the liquid crystal panel based on the image signal, and outputs an image to each liquid crystal panel. draw.

The projection control unit 221 controls each part of the projector 2a and executes projection of an image onto the screen SC. The projection control unit 221 controls the image processing unit 206 to execute processing on the input image data. The projection control unit 221 may read parameters necessary for processing executed by the image processing unit 206 from the storage unit 202 and output the parameters to the image processing unit 206.
The projection control unit 221 controls the image synthesizing unit 213 to execute an image synthesizing process, and controls the light modulation device driving unit 208 to draw an image on the liquid crystal panel of the light modulation device 22. Further, the projection control unit 221 controls the light source driving unit 207 to turn on the light source 21 and adjust the luminance of the light source 21. As a result, the light source 21 emits light and the image light modulated by the light modulator 22 is projected onto the screen SC through the projection optical system 23.

  The operation acquisition unit 222 acquires the operation position detected by the position detection unit 203 and the identification result identified by the identification unit 233 for the operation position. The operation position detected by the position detection unit 203 is output as coordinates in the projection area 24a (FIG. 1). For this reason, the operation acquisition unit 222 performs processing for converting the coordinates output from the position detection unit 203 into coordinates for the drawing processing unit 223 to perform drawing. In the present embodiment, the drawing processing unit 223 generates image data developed in the frame memory 214. Therefore, the operation acquisition unit 222 converts the coordinates output from the position detection unit 203 into coordinates in the frame memory 214.

  The drawing processing unit 223 performs a process of drawing a symbol or a figure in accordance with the operation position detected by the position detection unit 203 or the locus of the operation position. Symbols and figures drawn by the drawing processing unit 223 are called drawing objects. The drawing processing unit 223 generates a drawing object in accordance with the size of the image data developed in the frame memory 214. The drawing object data generated by the drawing processing unit 223 is output to the image processing unit 206, and the image processing unit 206 develops the drawing object in the frame memory 214. In addition, the image composition unit 213 may develop, for example, an input image of the image input unit 205 in the frame memory 214 and then superimpose and develop the drawing object generated by the drawing processing unit 223 in the frame memory 214. Is possible. Further, the drawing object generated by the drawing processing unit 223 may be stored in the storage unit 202 as the drawing object 226.

Further, the operation acquisition unit 222 executes the pointer function described above corresponding to the operation position detected by the position detection unit 203. When the position that overlaps the button of the menu bar M (FIG. 1) is instructed by the operation of the indicator 70, the operation acquisition unit 222 executes the function assigned to the button that overlaps the operation position. The buttons arranged on the menu bar M are as described above.
The projector 2a executes the drawing mode by operating the button for instructing the drawing execution of the menu bar M. In the drawing mode, the drawing processing unit 223 performs drawing corresponding to the operation position detected by the position calculation unit 232. When a button other than the drawing on the menu bar M is operated, the operation acquisition unit 222 executes a corresponding process based on the button operation and the operation position detected by the position calculation unit 232 after the button operation.

Based on the identification information of the indicator 70 output from the identification unit 233, the authentication processing unit 224 determines whether the indicator 70 that has performed the operation detected by the position calculation unit 232 is the indicator 70 corresponding to the projector 2a. Determine.
One or more indicators 70 can be registered in the projector 2a as the indicators 70 corresponding to the projector 2a. The projector 2 a includes the registered identification information of the indicator 70 in the correspondence information 225 and stores it in the storage unit 202.
The authentication processing unit 224 determines whether or not the indicator 70 detected by the identification unit 233 corresponds to the projector 2a based on whether or not the identification information output from the identification unit 233 is included in the correspondence information 225.
Further, the authentication processing unit 224 determines whether the operation detected by the position calculation unit 232 is an operation that is registered in the registration indicator information 227 and is permitted to be operated.
Further, the authentication processing unit 224 determines whether or not the operator identification information transmitted from the indicator 70 is received by the wireless communication unit 209.
When the wireless communication unit 209 receives the operator identification information, the authentication processing unit 224 refers to the operator authority information 228 and recognizes the operator authority indicated by the received operator identification information.

Based on the determination result of the authentication processing unit 224, the projection control unit 221 determines whether or not to project the drawing object generated by the drawing processing unit 223 on the screen SC. The projection control unit 221 determines that the drawing object is not projected when the authentication processing unit 224 determines that the indicator 70 that has performed the operation detected by the position calculation unit 232 is not compatible with the projector 2a. The projection control unit 221 determines that the drawing object is projected when the authentication processing unit 224 determines that the indicator 70 that has performed the operation detected by the position calculation unit 232 corresponds to the projector 2a.
When it is determined that the drawing object is not projected, the projection control unit 221 restricts the processing for the image processing unit 206 to expand the drawing object. If the projection control unit 221 determines to project a drawing object, the projection control unit 221 causes the image processing unit 206 to execute a process of developing the drawing object.

  FIG. 5 is a flowchart showing a first operation of the projector 2. The operation shown in FIG. 5 can be executed by both the projectors 2a and 2b. Further, the indicator 70 to be detected by the operation of FIG. 5 may be any of the indicators 70a, 70b, and 70c. Here, an example in which the projector 2a detects an operation of the indicator 70a will be described. The same applies to FIG. 6 described later.

When the position detection unit 203 detects an operation event such as a drawing operation or a pointer operation (step S1 / YES), the control unit 201 of the projector 2a causes the identification unit 233 to identify the indicator 70 and acquire identification information. (Step S2).
Based on the acquired identification information and correspondence information 225, the control unit 201 determines whether or not the indicator is registered as the indicator 70 corresponding to the projector 2a (step S3).
When it is the indicator registered as the indicator 70 (step S3 / YES), the control part 201 acquires the registration indicator information 227 of the indicator 70 corresponding to the acquired identification information (step S4). Then, the control unit 201 determines based on the registration indicator information 227 whether or not the operation indicated by the operation event acquired in step S1 is a permitted operation (step S6). When the indicator is not registered as the indicator 70 (step S3 / NO), the control unit 201 acquires the non-registered indicator information 229 (step S5). Based on the non-registered indicator information 229, the control unit 201 determines whether the operation indicated by the operation event acquired in step S1 is an operation permitted by the indicator 70 that is not registered in the projector 2a. (Step S6).

  When the operation indicated by the operation event is an operation that is not permitted (step S6 / NO), the control unit 201 ends the process corresponding to the operation event detected in step S1 (step S7). If the operation indicated by the operation event is a permitted operation (step S6 / YES), the control unit 201 determines whether the operation type of the operation event acquired in step S1 is drawing or erasing. (Step S8). When the operation type is drawing or erasing (step S8 / YES), the control unit 201 acquires the operation position of the operation event (step S9), and determines whether or not the acquired operation position is within the projection area 24a. (Step S10).

When the operation position is within the projection area 24a (step S10 / YES) and the operation event is drawing, the control unit 201 generates a drawing object based on the operation position and causes the projection unit 20 to display the drawing object (step S11). This process is terminated. Further, when the operation position is within the projection area 24a (step S10 / YES) and the operation event is erasure, the control unit 201 erases the drawing object based on the operation position, and the image in which the drawing object is erased. Is displayed by the projection unit 20 (step S11).
When it is determined that the operation event is not drawing or erasing (step S8 / NO), the control unit 201 determines that the operation is a pointer operation, and acquires the operation position detected by the position calculation unit 232 (step S12). . The control unit 201 displays the pointer P based on the acquired operation position, or performs a process of moving the position of the pointer P being displayed (step S13). Further, when the position of the pointer P after movement overlaps the position of the button on the menu bar M, the control unit 201 determines the overlapped button (step S14). The control unit 201 executes processing corresponding to the determined button (step S15), and ends this processing.

FIG. 6 is a flowchart showing the second operation of the projector 2.
When the position detection unit 203 detects an operation event such as a drawing operation or a pointer operation (step S21 / YES), the control unit 201 of the projector 2a determines whether or not operator identification information is acquired by the wireless communication unit 209. Determination is made (step S22). When the indicator 70 detects a signal output from the device possessed by the operator, the indicator 70 transmits the device information acquired from the device to the projector 2 as the operator identification information.
When the operator identification information is acquired (step S22 / YES), the control unit 201 acquires the operator authority information 228 corresponding to the acquired operator identification information. Then, the control unit 201 determines whether or not the operation indicated by the operation event acquired in step S1 is a permitted operation based on the operator authority information 228 (step S28). Thereafter, the control unit 201 performs the same operation as the operation after step S6 shown in FIG. Further, when the operator identification information cannot be acquired (step S22 / NO), the control unit 201 causes the identification unit 233 to identify the indicator 70 and acquire the identification information (step S24). Thereafter, the control unit 201 performs the same operation as the operation after step S3 shown in FIG.

As described above, the projector 2 according to this embodiment includes the projection unit 20, the position calculation unit 232, the identification unit 233, the storage unit 202, and the control unit 201.
The projection unit 20 displays an image on the screen SC. The position calculator 232 detects the position of the operation on the screen SC performed by the indicator 70. The identification unit 233 acquires identification information of the indicator 70 whose operation is detected by the position calculation unit 232. The storage unit 202 is a setting in which an operation area set as an area that can be operated by the indicator 70 on the screen SC, an operation that can be executed by the indicator 70, and identification information that identifies the indicator 70 are associated with each other. Store information. The control unit 201 performs an operation with an effective operation based on the position of the operation detected by the position calculation unit 232, the identification information of the indicator 70 acquired by the identification unit 233, and the setting information stored in the storage unit 202. It is determined whether or not. In addition, the control unit 201 executes processing corresponding to the operation determined to be valid. Therefore, since it is determined whether or not the operation is an effective operation based on the detected position of the operation and the acquired identification information of the indicator 70, an operation on a plurality of regions by a plurality of devices is operated. Can be detected according to the device settings.

  Further, the control unit 201 identifies an operator who operates the indicator 70 whose operation is detected by the position calculation unit 232. The storage unit 202 stores operator authority information 228 in which an executable operation is associated with each identified operator. When the position calculation unit 232 detects the operation position of the indicator 70, the control unit 201 determines that the operation detected by the position calculation unit 232 is effective based on the operator identification result and the operator authority information 228. It is determined whether or not the operation is incorrect. Even if the operation is determined not to be an effective operation based on the setting information stored in the storage unit 202, the operation determined to be an effective operation based on the operator authority information 228 is determined to be effective. . Therefore, it is possible to determine that the operation of the operator having the operation authority for the operation area is valid and process it.

  Further, the control unit 201 identifies the operator based on the operator identification information transmitted from the indicator 70. In addition, the indicator 70 acquires device information from a device owned by the operator, and transmits the acquired device information to the projector 2. Therefore, the operator can be easily identified.

  Each embodiment mentioned above shows a suitable embodiment of the present invention, does not limit the present invention, and various modifications are possible within the range which does not deviate from the gist of the present invention. For example, the projectors 2a and 2b have been described by taking the configuration in which the position detection unit 203 is built in as an example. However, the present invention is not limited to this, and the position detection unit 203 is externally connected to the projector 2. May be. For example, a position detection device having the function of the position detection unit 203 may be connected to each of the projectors 2a and 2b.

  In each of the above embodiments, the projectors 2a and 2b have been described so as to project image light from the front side of the screen SC. However, the projectors 2a and 2b perform projection from the back side of the screen SC. Also good. Or the structure which projects from the side of a projection surface with respect to the projection surface installed parallel or diagonally with a floor surface may be sufficient. Further, when the projection area 24a of the projector 2a and the projection area 24b of the projector 2b are close to each other, the above effect can be obtained by applying the present invention. Therefore, the arrangement of the projection areas 24a and 24b is not limited side by side. The projector 2a and the projector 2b are not limited to the configuration that projects onto the same screen SC.

  Moreover, each function part of the display system 1 shown in FIG. 2 shows the functional structure implement | achieved by cooperation with hardware and software, Comprising: A specific mounting form is not restrict | limited in particular. Therefore, it is not always necessary to mount hardware corresponding to each function unit individually, and it is of course possible to realize a function of a plurality of function units by one processor executing a program. In addition, in the above embodiment, a part of the function realized by software may be realized by hardware, or a part of the function realized by hardware may be realized by software. In addition, specific detailed configurations of other parts of the display system 1 can be arbitrarily changed without departing from the spirit of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Display system 2, 2a, 2b ... Projector, 3 ... Communication line, 20 ... Projection part, 24a, 24b ... Projection area, 25a, 25b ... Projected image, 70, 70a, 70b, 70c ... Indicator, 201 ... Control unit 202 ... Storage unit 203 ... Position detection unit 205 ... Image input unit 206 ... Image processing unit 209 ... Wireless communication unit 211 ... Communication unit 213 ... Image composition unit 214 ... Frame memory, 221 ... Projection control unit (control unit), 222 ... operation acquisition unit, 223 ... drawing processing unit (control unit), 224 ... authentication processing unit (determination unit, operator identification unit), 225 ... correspondence information (setting information), 226 ... Drawing object, 227 ... registered indicator information (setting information), 228 ... operator authority information, 229 ... non-registered indicator information, 231 ... imaging unit, 232 ... position calculator (detector), 233 ... identification (Acquisition unit), M ... menu bar, SC ... screen (display surface).

Claims (6)

A display unit for displaying an image on the display surface;
A detection unit for detecting a position of an operation on the display surface performed by an indicator;
An acquisition unit for acquiring identification information of the indicator whose operation is detected by the detection unit;
Setting information in which an operation area set as an area that can be operated by the indicator on the display surface, an operation that can be executed by the indicator, and identification information that identifies the indicator is stored. A storage unit;
Whether the operation is an effective operation based on the position of the operation detected by the detection unit, the identification information of the indicator acquired by the acquisition unit, and the setting information stored in the storage unit A determination unit for determining whether or not
A control unit that executes processing corresponding to the operation determined to be effective by the determination unit;
A display device comprising: An operator identification unit for identifying an operator who operates the indicator whose operation is detected by the detection unit;
The storage unit stores operator authority information in which executable operations are associated with each of the operators identified by the operator identification unit,
The determination unit detects the operation detected by the detection unit based on the identification result of the operator identification unit and the operator authority information when the position of the operation of the indicator is detected by the detection unit. The display device according to claim 1, wherein it is determined whether or not the operation is an effective operation. Even if the operation is determined not to be an effective operation based on the setting information stored in the storage unit, the operation is determined to be an effective operation based on the operator authority information. Is determined to be valid,
The display device according to claim 2.   The display device according to claim 2, wherein the operator identification unit identifies the operator by receiving operator identification information transmitted from the indicator.   The display device according to claim 4, wherein the indicator acquires device information from a device possessed by the operator, and transmits the acquired device information to the display device as the operator identification information. . Detect the position of the operation performed by the indicator on the display surface where the image is displayed,
Obtaining identification information of the indicator that has performed the detected operation;
Setting information in which the obtained identification information of the indicator, an operation area set as an area that can be operated by the indicator on the display surface, and an operation that can be executed by the indicator in the operation area are set And whether or not the operation is an effective operation based on the detected position of the operation,
When it is determined that the operation is valid, a process corresponding to the operation is executed.
A control method for a display device.

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