JP6657795B2 - Display system, terminal device, and display system control method - Google Patents

Description

  The present invention relates to a display system, a terminal device, and a control method for a display system.

Conventionally, in a display device, it is necessary to adjust a display mode of an image displayed by the display device in advance, and various techniques for simplifying the advance adjustment have been proposed (for example, see Patent Document 1). .
Patent Literature 1 discloses a projection lens that projects an optical image onto a screen, a lens driving unit that shifts the projection lens in a vertical direction and a horizontal direction, and a projection lens such that the center position of the projection lens does not deviate from a predetermined range. A projection display device including a shift control unit that limits a range of a shift movement is disclosed.

JP 2010-60806 A

By the way, in a display system including a display device and a terminal device, when the display mode of an image displayed on the display device is adjusted in response to an operation received by the terminal device, improvement in operability in the terminal device is desired. ing.
The present invention has been made in view of the above circumstances, and has as its object to improve the operability of a terminal device when adjusting the display mode of an image displayed on a display device by the terminal device.

In order to achieve the above object, a display system according to the present invention is a display system including a terminal device and a display device, wherein the terminal device includes an operation unit that receives an operation, a notification unit that performs notification, and the operation unit. A transmitting unit that transmits an operation signal corresponding to the operation received in the display device, and a notification receiving unit that receives a notification signal transmitted from the display device, wherein the display device displays an image. Unit, an adjustment unit that changes a parameter according to the operation signal received from the terminal device, a processing unit that adjusts a display mode of an image on the display unit based on the changed parameter, and a processing unit that is changed by the adjustment unit. A determining unit that determines that the parameter has reached an upper limit or a lower limit of a changeable range, and transmitting the notification signal to the terminal device based on a determination result of the determining unit. That includes a notification transmitting unit, wherein the terminal device, when receiving the notification signal by the notification receiving unit, and performs the notification by the notification unit.
ADVANTAGE OF THE INVENTION According to this invention, when adjusting the display mode of the image which a display apparatus displays by a terminal device, the operability of a terminal device can be improved.

In addition, the present invention is the display system, in the display device, a light source, a modulation unit that modulates light emitted by the light source based on image data, and an optical unit that projects light modulated by the modulation unit, Wherein the processing unit controls the modulation unit or the optical unit based on the parameter adjusted by the adjustment unit.
According to the present invention, the modulation unit or the optical unit can be controlled by operating the terminal device.

In addition, according to the present invention, in the display system, the optical unit includes a projection lens, the parameter includes a lens movement amount parameter that is a parameter related to a lens movement amount of the projection lens, and the processing unit includes: A lens moving amount of the projection lens is adjusted based on the lens moving amount parameter adjusted by an adjusting unit.
According to the present invention, the amount of movement of the projection lens can be adjusted by operating the terminal device.

Further, in the display system according to the present invention, the optical unit includes a projection lens, the parameter includes a zoom amount parameter that is a parameter related to a zoom amount of the projection lens, and the processing unit includes the adjustment unit. The zoom amount of the projection lens is adjusted based on the zoom amount parameter adjusted by (1).
According to the present invention, the zoom amount of the projection lens can be adjusted by operating the terminal device.

Further, according to the present invention, in the display system, the parameter includes an image processing parameter that is a parameter related to image processing on the image data, and the processing unit is based on the image processing parameter adjusted by the adjustment unit. Image processing is performed on the image data, and the modulation unit modulates light emitted from the light source based on the image data on which image processing has been performed by the processing unit.
According to the present invention, the brightness and hue of an image can be adjusted by operating the terminal device.

Further, in the display system according to the present invention, the image processing parameter includes a shape correction parameter that is a parameter related to shape correction for the image data, and the processing unit includes the shape correction parameter adjusted by the adjustment unit. And performing a shape correction on the image data based on the image data, and displaying the image based on the image data on which the shape correction has been performed by the processing unit.
ADVANTAGE OF THE INVENTION According to this invention, the shape correction of the image displayed by a display part can be performed by operation of a terminal device.

Further, in the display system according to the present invention, in the display system, the display device includes a web server that provides a web page in response to a web browser request of an external device, and the terminal device includes the web browser. The Web browser of the terminal device transmits an operation signal corresponding to the operation received by the operation unit based on Web page data provided from the Web server of the display device, and transmits the operation signal from the display device. The notification is performed based on the notified notification signal.
According to the present invention, the display mode of the image displayed on the display device can be adjusted by operating the Web browser of the terminal device.

Further, according to the present invention, in the display system, the terminal device includes a vibration device as the notification unit, and when the notification signal is received by the notification reception unit, the terminal device is caused to vibrate by the vibration device. It is characterized by.
According to the present invention, the display device can transmit the notification signal to the terminal device and vibrate the terminal device.

Further, in the display system according to the present invention, in the display system, the terminal device includes a speaker as the notification unit, and when the notification signal is received by the notification reception unit, a notification sound is emitted by the speaker. And
ADVANTAGE OF THE INVENTION According to this invention, a display device can transmit a notification signal to a terminal device, and can make a terminal device emit a notification sound.

The terminal device of the present invention is an operation unit that receives an operation, a notification unit that performs notification, a transmission unit that transmits an operation signal corresponding to the operation received by the operation unit to a display device that displays an image, and the display unit. A notification receiving unit that receives a notification signal transmitted from the device, wherein when the notification signal is received by the notification receiving unit, notification is performed by the notification unit.
According to the present invention, when the notification signal is received from the display device, the notification can be performed by the notification unit.

A method for controlling a display system according to the present invention is a method for controlling a display system including a terminal device and a display device, wherein, in the terminal device, a step of receiving an operation by an operation unit included in the terminal device; Transmitting an operation signal corresponding to the display device to the display device, wherein the display device displays a parameter based on the changed parameter in the display device, in accordance with the operation signal. Adjusting the display mode of the image displayed by the unit, determining that the changed parameter has reached the upper limit or lower limit of the changeable range, and transmitting a notification signal based on the determination result of the determining step. Transmitting the notification signal from the display device to the terminal device. When receiving, and having a step of informing by the informing unit provided in the said terminal device.
ADVANTAGE OF THE INVENTION According to this invention, when adjusting the display mode of the image which a display apparatus displays by a terminal device, the operability of a terminal device can be improved.

The figure which shows the outline of a display system. FIG. 1 is a configuration diagram of a display system. FIG. 4 is an explanatory diagram of a lens shift. 5 is a flowchart illustrating operations of the projector and the terminal device. 5 is a flowchart illustrating operations of the projector and the terminal device. 5 is a flowchart illustrating operations of the projector and the terminal device. FIG. 4 is a diagram illustrating a web page for lens shift adjustment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram schematically illustrating the display system 1. The display system 1 includes a projector 100 as a display device and a terminal device 300, and the projector 100 and the terminal device 300 are connected to each other via a network N such as the Internet so that data communication is possible.
The projector 100 is a device that projects an image on a screen SC as a display surface. The installation state of the projector 100 may be a floor-standing installation placed on the floor in front of the screen SC, or a ceiling-mounted installation suspended from the ceiling. In the case of floor-standing installation, the projector 100 may be placed on a table placed on the floor. The image projection destination may be a flat projection surface such as a screen SC or a wall surface of a building, or may be an object that is not uniformly flat such as a building or an object. In the present embodiment, a case where an image is projected on the screen SC will be exemplified.
The terminal device 300 is a portable communication device such as a smartphone, a mobile phone, a tablet PC (Personal Computer), and a PDA (Personal Digital Assistant). In the present embodiment, a case where the terminal device 300 is a smartphone will be described as an example. The terminal device 300 performs wireless communication with the projector 100 and performs, for example, adjustment of the projection position of the image on the screen SC, adjustment of the color and brightness of the image to be projected, shape correction, and the like.

The projector 100 is connected to the network N via, for example, a wireless router (not shown). The network N is, for example, a communication network including a public line network and a dedicated line, and may be an open network such as the Internet or a closed network accessible by a specific device. Good. The wireless router relays data communication between the projector 100 and the terminal device 300.
The terminal device 300 is connected to, for example, a base station (not shown) connected to the network N via a mobile communication line. The base station relays data communication between the projector 100 and the terminal device 300.

FIG. 2 is a configuration diagram of the display system 1. 2A shows the configuration of the projector 100, and FIG. 2B shows the configuration of the terminal device 300.
First, the configuration of the projector 100 will be described. The image supply device 200 is connected to the projector 100. The image supply device 200 is a device that supplies an image signal to the projector 100. The projector 100 projects an image based on image signals supplied from the image supply device 200 or image data stored in advance by the storage unit 170 described later on the screen SC. As the image supply device 200, for example, a video reproduction device, a DVD (Digital Versatile Disk) reproduction device, a TV tuner device, a CATV (Cable television) set-top box, a video output device such as a video game device, a personal computer, or the like is used. Can be

The projector 100 includes an image input unit 151 connected to the image supply device 200 via a cable. The image input unit 151 includes a connector for connecting a cable and an interface circuit (both not shown), and inputs an image signal supplied from the image supply device 200.
The interface provided in the image input unit 151 may be, for example, an interface for data communication such as Ethernet (registered trademark), IEEE1394, or USB. Further, the interface of the image input unit 151 may be an interface for image data such as MHL (registered trademark), HDMI (registered trademark), and DisplayPort.
Further, the image input unit 151 may be configured to include, as connectors, a VGA terminal to which an analog video signal is input and a DVI (Digital Visual Interface) terminal to which digital video data is input. Further, the image input unit 151 includes an A / D conversion circuit. When an analog video signal is input via a VGA terminal, the image input unit 151 converts the analog video signal into image data using the A / D conversion circuit. Output to

The projector 100 includes a display unit 110 that forms an optical image and projects (displays) the image on a screen SC.
The display unit 110 includes a light source unit 111 as a light source, a light modulation device 112, and a projection optical system 113. The light source unit 111 includes a light source including 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 unit 111 may include a reflector and an auxiliary reflector that guide light emitted from the light source to the light modulation device 112. Further, the light source unit 111 includes a lens group for improving the optical characteristics of the projection light, a polarizing plate, a dimming element that reduces the amount of light emitted from the light source on the path to the light modulation device 112, etc. (Abbreviation).

  The light source unit 111 is driven by the light source driving unit 121. The light source driving unit 121 is connected to the internal bus 180. The light source driving unit 121 turns on and off the light source of the light source unit 111 under the control of the control unit 160.

  The light modulation device 112 as a modulation unit includes, for example, three liquid crystal panels corresponding to three primary colors of RGB. The light emitted from the light source unit 111 is separated into three color lights of RGB and is incident on the corresponding liquid crystal panel. The three liquid crystal panels are transmissive liquid crystal panels, and modulate transmitted light to generate image light. The image light modulated by passing through each liquid crystal panel is synthesized by a synthesizing optical system such as a cross dichroic prism and emitted to the projection optical system 113.

The light modulator 112 is connected to a light modulator driving unit 122 that drives a liquid crystal panel of the light modulator 112. The light modulator driving unit 122 is connected to the internal bus 180.
The light modulation device driving unit 122 generates R, G, and B image signals based on display image data (described later) input from the image processing unit 152. The light modulator driving unit 122 drives the corresponding liquid crystal panel of the light modulator 112 based on each of the generated R, G, and B image signals, and draws an image on each liquid crystal panel.

  The projection optical system 113 as an optical unit includes a projection lens 114 that projects image light modulated by the light modulator 112 in the direction of the screen SC and forms an image on the screen SC. The projection lens 114 is a zoom lens having a function of adjusting the angle of view, that is, adjusting the size of the projected image (zoom adjustment). The projection lens 114 also has a function of adjusting the focus position (focus adjustment).

The projection optical system 113 is connected to a projection optical system drive unit 123. The projection optical system driving unit 123 is connected to the internal bus 180.
The projection optical system drive unit 123 includes a motor such as a stepping motor and gears (both not shown), and drives the projection lens 114 to perform zoom adjustment and focus adjustment.
Further, the projection optical system driving unit 123 performs a lens shift adjustment that moves the projection lens 114 in a plane orthogonal to the optical axis of the projection lens 114 and moves the image projected on the screen SC in the vertical and horizontal directions.
FIG. 3 is an explanatory diagram of the lens shift. When the projection optical system driving unit 123 drives the projection lens 114, the projection image projected on the screen SC is moved in the up, down, left, and right directions. The range in which the projection image can be moved by the lens shift adjustment is called a lens shiftable area.

The projector 100 includes an operation panel 131 and an input processing unit 133.
The operation panel 131 functioning as a user interface is provided with various operation keys and a display screen configured by a liquid crystal panel.
When an operation key on the operation panel 131 is operated, the input processing unit 133 outputs a signal corresponding to the operated key to the control unit 160. Further, the input processing unit 133 causes the operation panel 131 to display various screens based on a control signal input from the control unit 160.
In addition, a touch sensor for detecting contact with the operation panel 131 is overlaid on the operation panel 131 to be integrally formed. The input processing unit 133 detects the position of the operation panel 131 with which the user's finger or the like touches as an input position, and outputs a signal corresponding to the detected input position to the control unit 160.

  Further, the projector 100 includes a remote controller 5 used by a user. The remote controller 5 has various buttons, and transmits an infrared signal in response to operation of these buttons. The main body of the projector 100 is provided with a remote control light receiving unit 132 that receives an infrared signal emitted by the remote control 5. Remote control light receiving section 132 receives an infrared signal transmitted from remote control 5. The input processing unit 133 decodes the infrared signal received by the remote control light receiving unit 132, generates a signal indicating the operation content of the remote control 5, and outputs the signal to the control unit 160.

  The projector 100 includes a wireless communication unit 137. The wireless communication unit 137 includes an antenna, an RF (Radio Frequency) circuit (both not shown), and communicates with a wireless router via a wireless LAN (Local Area Network). Data transmitted from the projector 100 is transmitted to the terminal device 300 via the wireless LAN, the network N, and the mobile communication line. The wireless communication method of the wireless communication unit 137 is not limited to a wireless LAN (Local Area Network), but a short-range wireless communication method such as Bluetooth (registered trademark), UWB, infrared communication, or a wireless communication method using a mobile communication line. Can be adopted.

  The projector 100 includes an image processing system. The image processing system is mainly configured by a control unit 160 that controls the whole of the projector 100, and further includes an image processing unit 152, a frame memory 153, and a storage unit 170. The control unit 160, the image processing unit 152, and the storage unit 170 are connected to the internal bus 180 so as to be able to perform data communication with each other.

The image processing unit 152 as a processing unit develops image data input from the image input unit 151 in the frame memory 153 under the control of the control unit 160. The image processing unit 152 performs, for example, resolution conversion (scaling) processing or resizing processing, distortion correction, shape correction processing, digital zoom processing, color adjustment processing, and brightness adjustment on the image data developed in the frame memory 153. Perform processing such as processing. The image processing unit 152 executes a process specified by the control unit 160, and performs a process using a parameter input from the control unit 160 as necessary. In addition, the image processing unit 152 can, of course, execute a combination of a plurality of processes described above.
The image processing unit 152 reads the processed image data from the frame memory 153 and outputs the read image data to the light modulation device driving unit 122 as display image data.

  The control unit 160 includes a CPU, a ROM, and a RAM (all are not shown) as hardware. The ROM is a nonvolatile storage device such as a flash ROM, and stores a control program and data. The RAM constitutes a work area of the CPU. The CPU loads the control program read from the ROM or the storage unit 170 into the RAM, and executes the loaded control program to control each unit of the projector 100.

  The control unit 160 includes a projection control unit 161 and a Web server execution unit 162 as functional blocks. The Web server execution unit 162 is a functional unit realized by executing a Web server stored in the storage unit 170, and includes an adjustment unit 163, a determination unit 164, an authentication unit 165, and a session management unit 166. These functional blocks are realized by the CPU executing a control program stored in the ROM or the storage unit 170.

The projection control unit 161 controls the projection optical system driving unit 123 based on the value of a lens movement amount parameter described later notified by the adjustment unit 163, adjusts the display mode of the image on the display unit 110, and displays the image on the screen SC. Executes image projection.
Specifically, the projection control unit 161 controls the image processing unit 152 to perform image processing on the image data input from the image input unit 151. At this time, the projection control unit 161 may read parameters necessary for the image processing unit 152 for processing from the storage unit 170 and output the parameters to the image processing unit 152. Further, the projection control unit 161 controls the light source driving unit 121 to turn on the light source of the light source unit 111 and adjust the brightness of the light source. As a result, the light source emits light, and the image light modulated by the light modulator 112 is projected on the screen SC by the projection optical system 113. Further, the projection control unit 161 controls the projection optical system driving unit 123 based on the lens movement amount parameter input from the adjustment unit 163.

  The Web server execution unit 162 executes the Web server stored in the storage unit 170, and exchanges data such as HTML data constituting a Web page via the network N in response to a request from client software such as a Web browser. . Further, the Web server execution unit 162 functions as a notification transmission unit that transmits a response command (notification signal) to the terminal device 300 based on the determination result of the determination unit 164.

The adjusting unit 163 changes the value of the lens movement amount parameter according to the command (operation signal) received by the wireless communication unit 137 from the terminal device 300. The lens movement amount parameter is a parameter for determining the changed lens position of the projection lens 114 in the lens shift adjustment. The lens moving amount parameter indicates the lens position of the projection lens 114 after the lens shift adjustment has been performed. In the present embodiment, the lens moving amount parameter indicates a moving direction and a moving amount after the projection lens 114 moves from a predetermined reference position in a direction orthogonal to the projection direction. The lens movement amount parameter includes a vertical direction parameter for determining a vertical movement amount of the projection lens 114 in a plane orthogonal to the optical axis of the projection lens 114, and a horizontal direction for determining a horizontal movement amount of the projection lens 114. And parameters.
The projection control unit 161 calculates the driving direction of the projection lens 114 and the lens movement amount of the projection lens 114 based on the value of the lens movement amount parameter changed by the adjustment unit 163. The projection control unit 161 generates a control signal for controlling the projection optical system driving unit 123 based on the calculated driving direction and the calculated lens movement amount, and outputs the control signal to the projection optical system driving unit 123.
In addition, the adjustment unit 163 changes a zoom amount parameter that is a parameter related to the zoom amount of the projection lens 114 and a focus amount parameter that is a parameter related to the focus amount according to a command (operation signal) received from the terminal device 300. The projection control unit 161 generates a control signal for controlling the projection optical system driving unit 123 based on the value of the parameter input from the adjustment unit 163, and outputs the control signal to the projection optical system driving unit 123.
Further, the adjustment unit 163 sets a parameter value used when the image processing unit 152 performs image processing on the image data according to a command (operation signal) received by the wireless communication unit 137 from the terminal device 300. change. The parameters include image processing parameters used for adjusting brightness and hue of an image. The image processing parameters include shape correction parameters used for correcting distortion and shape.

The determination unit 164 determines whether one of the two lens movement amount parameters (vertical direction parameter and horizontal direction parameter) whose value is changed by the adjustment unit 163 has reached the upper limit or the lower limit of the changeable range. Is determined. When one of the vertical direction parameter and the horizontal direction parameter reaches the upper limit value or the lower limit value, the determination unit 164 determines that the lens movement amount parameter has reached the upper limit value or the lower limit value. Notify.
The determining unit 164 determines whether the values of the zoom amount parameter and the focus amount parameter changed by the adjusting unit 163 have reached the upper limit or the lower limit of the changeable range.
Further, the determination unit 164 determines whether or not the image processing parameters used for adjusting the brightness and hue, or correcting the distortion and the shape have reached the upper limit or the lower limit of a changeable range.

  The authentication unit 165 authenticates the user who has requested login. The session management unit 166 manages session information of a user who has been successfully authenticated by the authentication unit 165.

  The storage unit 170 is a nonvolatile storage device, and is realized by a storage device such as a flash memory, an EPROM (Erasable Programmable ROM), an EEPROM (Electrically EPROM), and an HDD (Hard Disc Drive). The storage unit 170 stores a Web server, which is a control program having a data transmission / reception function, and image data projected on the screen SC by the display unit 110 in the World Wide Web (WWW). Further, the storage unit 170 stores the user ID and password of the user as authentication information for authenticating the registered user. Further, storage section 170 stores the IP address set for projector 100.

Next, the configuration of the terminal device 300 will be described with reference to FIG.
The terminal device 300 includes a mobile communication unit 301, a display unit 302, an operation input unit 304, a storage unit 305, a vibration device 306, an audio processing unit 307, a speaker 308, a microphone 309, and a control unit 310.

  A mobile communication unit 301 functioning as a transmission unit and a notification reception unit is connected to a mobile communication line such as an LTE (Long Term Evolution) line, a 3G line, and performs wireless communication with a base station. A mobile communication line is a line that can perform not only telephone but also data communication. Data transmitted from the terminal device 300 is transmitted to the projector 100 via the mobile communication line, the network N, and the wireless LAN.

  The display unit 302 includes a display panel 303 such as a liquid crystal display. The display unit 302 displays an image on the display panel 303 under the control of the control unit 310. The display panel 303 is not limited to a liquid crystal display, and may be an organic EL (electro-luminescence) display.

The operation input unit 304 as an operation unit that receives an operation includes a touch sensor that detects contact of a finger or a touch pen as a pointer (not shown) with the display panel 303. The type of the touch sensor may be any of a capacitance type, an ultrasonic type, a pressure-sensitive type, a resistive film type, a light detection type, and the like, and is configured integrally with the display panel 303. The operation input unit 304 detects, as an input position, the position of the display panel 303 touched by the pointer, and outputs a signal corresponding to the detected input position to the control unit 310.
Further, the operation input unit 304 includes a push button key arranged around the display unit 302, receives an operation of the push button key, and outputs a signal indicating the operation set to the push button key to the control unit 310. .

  The storage unit 305 stores an OS (Operating System) executed by the CPU of the control unit 310 and an application program such as a general-purpose Web browser. The storage unit 305 stores data processed by the control unit 310 in a nonvolatile manner.

  The vibration device 306 as a notification unit that performs notification includes a vibrator, and vibrates the housing of the terminal device 300. The vibration pattern and vibration intensity of the vibration device 306 can be changed under the control of the control unit 310.

  The voice processing unit 307 converts the supplied voice signal into an analog signal when the voice signal of the communication partner is supplied from the mobile communication unit 301 when performing a voice call. The converted audio signal is supplied to a speaker 308, from which the voice of the other party is emitted. When the microphone 309 collects sound, the sound processing unit 307 converts the collected sound into a digital signal. When performing a voice call, the voice processing unit 307 supplies the mobile communication unit 301 with a voice signal obtained by converting the voice of the user into a digital signal. This voice signal is output from mobile communication section 301 to the mobile communication line, and transmitted to terminal apparatus 300 of the other party.

  The control unit 310 functioning as a transmission unit and a notification reception unit includes a CPU, a ROM, and a RAM as hardware. The control unit 310 expands the control program stored in the ROM or the storage unit 305 in the RAM, and controls each unit of the terminal device 300 by executing the expanded control program by the CPU. The control unit 310 executes a Web browser stored in the storage unit 305, and exchanges data such as HTML data constituting a Web page with the projector 100 functioning as a server.

4 to 6 are flowcharts illustrating operations of the projector 100 and the terminal device 300.
The user of the terminal device 300 performs an operation of activating the Web browser by operating a push button key or touching the display panel 303. When accepting an operation to activate the Web browser (step S1 / YES), control unit 310 of terminal device 300 activates and executes the Web browser (step S2). If the operation of activating the Web browser has not been received (step S1 / NO), control unit 310 of terminal device 300 waits until the operation is received.

  Next, the user specifies the IP address of the projector 100 on the display screen of the Web browser displayed on the display panel 303. When the control unit 160 of the projector 100 receives the display request of the IP address from the operation panel 131 or the remote controller 5, the control unit 160 may cause the operation panel 131 to display the IP address set in the projector 100, for example. Further, the control unit 160 may display a two-dimensional code such as a QR code (registered trademark) having the IP address of the projector 100 or a URL corresponding to the IP address as connection information to the projector 100 on the screen SC. The user may cause the camera of the terminal device 300 to read the two-dimensional code, connect the terminal device 300 to the projector 100, and acquire Web page data from the projector 100.

  The control unit 310 of the terminal device 300 determines whether or not an IP address has been input into the address bar of the display screen displayed by the Web browser (Step S3). If there is no input of the IP address (step S3 / NO), control unit 310 waits until an IP address is input. When receiving the IP address (step S3 / YES), control unit 310 transmits a Web page data acquisition request to projector 100 (Web server) specified by the received IP address (step S4).

  When receiving the Web page data acquisition request via the network N (step T1 / YES), the Web server execution unit 162 of the projector 100 transmits to the terminal device 300 the Web page data in which an ID and a password can be input. (Step T2). When the Web server execution unit 162 has not received the Web page data acquisition request (step T1 / NO), the Web server execution unit 162 waits until the data acquisition request is received.

  When receiving the data of the Web page from the projector 100, the control unit 310 of the terminal device 300 causes the display panel 303 to display the received Web page (Step S5). On the Web page displayed on the display panel 303, input fields for an ID and a password are displayed. The control unit 310 causes the display panel 303 to display the character input screen when it receives a request for displaying a character input screen on which a keyboard capable of inputting characters or numbers is displayed by operating a push button key or touching. Control unit 310 determines whether an ID and a password have been input by a touch operation on the character input screen (step S6), and if there is no input (step S6 / NO), the control unit 310 waits until an input is made. Further, when receiving the ID and the password (step S6 / YES), control unit 310 transmits the received ID and password to projector 100 (step S7).

  The Web server execution unit 162 of the projector 100 determines whether the ID and the password have been received (Step T3). When the ID and the password have not been received (step T3 / NO), the Web server execution unit 162 waits until the ID and the password are received. Further, upon receiving the ID and the password (step T3 / YES), the Web server execution unit 162 determines whether the received ID and the password match the ID and the password stored in the storage unit 170, and Authentication is performed (step T4). If the received ID and password do not match the ID and password stored in storage unit 170, Web server execution unit 162 determines that user authentication has failed (step T5 / NO). In this case, the Web server execution unit 162 transmits data for displaying a login error to the terminal device 300, causes the terminal device 300 to display the data (step T7), and prompts the user to input the ID and the password again. When receiving the login error data from the projector 100, the control unit 310 of the terminal device 300 determines that the authentication has failed (step S8 / NO), and causes the display panel 303 to display the login error (step S9). Thereafter, the Web server execution unit 162 of the projector 100 waits until a new ID and password is transmitted from the terminal device 300 (Step T3), and upon receiving the new ID and password, performs the user authentication again. When the user authentication fails (step T5 / NO), the Web server execution unit 162 transmits data for displaying a login error to the terminal device 300 and causes the terminal device 300 to display the data (step T7). In this case, if the user authentication has failed for a preset number of times, the Web server execution unit 162 may stop the user authentication and perform processing so that the user cannot log in for a certain period of time.

When the received ID and password match the ID and password stored in storage unit 170, Web server execution unit 162 determines that user authentication has succeeded (step T5 / YES). In this case, the Web server execution unit 162 notifies the terminal device 300 that the user authentication has succeeded, and transmits to the terminal device 300 Web page data on which the adjustment items of the projector 100 that can be operated by the terminal device 300 are displayed. The control unit 310 of the terminal device 300 causes the display panel 303 to display the received Web page. The adjustment items displayed on the Web page include, for example, zoom adjustment, focus adjustment, lens shift adjustment, shape correction, distortion correction, image quality adjustment for adjusting the brightness and hue of a projected image, and the like.
The user selects one item to be adjusted from a plurality of adjustment items displayed on the Web page by operating a push button key or touching the display panel 303. Hereinafter, a case where the lens shift adjustment is selected will be described.

  When the lens shift adjustment is selected, the Web server execution unit 162 of the projector 100 transmits the data of the Web page for the lens shift adjustment to the terminal device 300 (Step T6). The control unit 310 of the terminal device 300 receives the notification that the user authentication is successful, and determines that the authentication is successful (step S8 / YES), and then transmits the lens shift adjustment Web page transmitted from the projector 100. Is displayed on the display panel 303 (step S10).

FIG. 7 is a diagram illustrating an example of a web page for lens shift adjustment displayed on the display panel 303.
The lens shift adjustment Web page is a page in which the user can operate the terminal device 300 to adjust the lens movement amount of the projection lens 114, and displays a plurality of object images that accept the user's operation. . The object image is an image that can be selected by a touch operation with a pointer, and an instruction to the projector 100 is associated with each object image. On the Web page for lens shift adjustment shown in FIG. 7, an object image of an arrow indicating each of up, down, left, and right directions, and plus and minus object images representing enlargement and reduction are displayed.
The control unit 310 of the terminal device 300 causes the display panel 303 to display a web page for lens shift adjustment transmitted from the projector 100, and determines whether an input from a user has been received (step S11). If an input from the user has not been received (step S11 / NO), control unit 310 waits until an input is received.

When accepting an input by a touch operation (step S11 / YES), control unit 310 of terminal device 300 determines whether or not the accepted input is an input for selecting an object image displayed on a lens shift adjustment Web page. Is determined (step S12). If control unit 310 determines that the received input is not an input for selecting an object image displayed on the lens shift adjustment Web page (step S12 / NO), control unit 310 proceeds to the determination of step S25.
If it is determined that the input is an input for selecting an object image (step S12 / YES), control unit 310 selects an instruction associated with the selected object image (step S13). The object images displayed on the lens shift adjustment Web page and the instructions associated with each object image are set in the Web browser. For example, when an “up” arrow is selected by a user's touch operation, the control unit 310 of the terminal device 300 selects an instruction to the projector 100 to change the lens position of the projection lens 114 upward.

Next, the control section 310 determines whether or not the object image selected in step S12 is long-pressed (step S14). The control unit 310 repeatedly receives a signal from the operation input unit 304, determines whether the position indicated by the signal is the same position on the display panel 303, and determines whether or not the object image is long-pressed. judge.
If it is determined that the object image has been pressed for a long time (step S14 / YES), control unit 310 generates a first instruction command (operation signal) for instructing lens shift, and transmits the generated first instruction command to projector 100. It transmits (step S15). The first instruction command includes a command to instruct the projector 100 to change the lens position of the projection lens 114, a command to continue changing the lens position until the stop is instructed, and the projection lens selected in step S13. 114 indicating the change direction.
When transmitting the first instruction command to projector 100, control unit 310 executes a first notification (step S16). In the present embodiment, as the first notification, the sound processing unit 307 causes the speaker 308 to output a notification sound such as a sound pattern, a scale, and a rhythm sound, and notifies the user of hearing. This first notification is continued while the user is holding down the object image selected in step S12, and continues until the second notification described later is started.

  The Web server execution unit 162 of the projector 100 determines whether the first instruction command has been received (Step T8). If the first instruction command has not been received (step T8 / NO), the Web server execution unit 162 proceeds to the process of step T15. Further, when receiving the first instruction command (Step T8 / YES), the Web server execution unit 162 changes the value of the lens movement amount parameter, which is a parameter related to the lens movement amount of the projection lens 114 (Step T9). The Web server execution unit 162 changes the value of the lens movement amount parameter corresponding to the change direction of the projection lens 114 specified by the terminal device 300 by one step.

Next, the Web server execution unit 162 determines whether or not the value of the lens movement amount parameter after the change matches an upper limit or a lower limit of a preset range (Step T10).
When the value of the lens movement amount parameter does not match the upper limit value or the lower limit value (step T10 / NO), the Web server execution unit 162 causes the projection control unit 161 to control the projection optical system driving unit 123 and the projection lens The lens position of 114 is changed (step T11). The lens movement amount of the projection lens 114 is a distance corresponding to one step of the lens movement amount parameter. Then, the Web server execution unit 162 determines whether a stop command for stopping the change of the lens position has been received from the terminal device 300 (Step T13). When the stop command has not been received (step T13 / NO), the Web server execution unit 162 returns to the process of step T9, and changes the value of the lens movement amount parameter by one step. Then, the control unit 160 sets the value of the lens movement amount parameter to the upper limit value or the lower limit value of the preset range until the stop command is received or in the determination of step T10. Repeat until the value matches.

  Also, in the determination of step T10, if the value of the lens movement amount parameter matches the upper limit or the lower limit (step T10 / YES), the Web server execution unit 162 can change the lens position of the projection lens 114. It is determined that the upper or lower limit of the range has been reached. In this case, the Web server execution unit 162 transmits a response command for notifying that the lens position of the projection lens 114 has reached the upper limit or the lower limit to the terminal device 300 as a command for the first instruction command (Step T12).

  As a first notification, the control unit 310 of the terminal device 300 determines whether or not the long press operation has been completed in a state where the sound pattern, the scale, the rhythm, and the like are output from the speaker 308 (step S17). The control unit 310 determines whether or not the input of the signal from the operation input unit 304 has stopped, and determines the end of the long-press operation (step S17). If it is determined that the long press operation has not been completed (step S17 / NO), control unit 310 determines whether or not a response command has been received (step S18). If the response command has not been received (step S18 / NO), control unit 310 returns to the determination in step S17, and further determines whether or not the long press operation has been completed. When receiving a response command from projector 100 (step S18 / YES), control unit 310 stops the first notification and executes the second notification (step S19). By executing the second notification, the user is notified that the change in the lens position of the projection lens 114 has reached the limit (upper limit or lower limit). In the embodiment, as the second notification, the terminal device 300 is vibrated by the vibration device 306, and the notification is given to the user's tactile sensation. The control unit 310 performs the second notification for a preset time, returns to the determination in step S11, and determines whether there is an input from the user.

  Further, when determining in step S17 that the long press operation has been completed (step S17 / YES), control unit 310 transmits a stop command to stop changing the lens position to projector 100 (step S20). . Then, control unit 310 stops the first notification (step S21), returns to the determination in step S11, and determines whether there is an input from the user.

  When receiving the stop command from the terminal device 300 in Step T13 (Step T13 / YES), the Web server execution unit 162 of the projector 100 causes the projection control unit 161 to stop changing the lens position of the projection lens 114 (Step T13). T14). Then, the Web server execution unit 162 returns to the determination in Step T8 and determines whether the first instruction command has been received.

  If it is determined in step S14 that the operation is not a long-press operation (step S14 / NO), the Web server execution unit 162 transmits a second instruction command (operation signal) to the projector 100 (step S22). ). The second instruction command includes a command for instructing the projector 100 to change the lens position of the projection lens 114, and information indicating a change direction of the projection lens 114 selected in step S13.

  When the determination in step T8 is a negative determination (step T8 / NO), the Web server execution unit 162 proceeds to the determination in step T15. In the determination of step T15, the Web server execution unit 162 determines whether a second instruction command has been received from the terminal device 300 (step T15). If the second instruction command has not been received from the terminal device 300 (step T15 / NO), the Web server execution unit 162 proceeds to the determination of step T20. When receiving the second instruction command from terminal device 300 (step T15 / YES), Web server executing section 162 changes the value of the lens movement amount parameter (step T16). The Web server execution unit 162 changes the value of the lens movement amount parameter corresponding to the change direction of the projection lens 114 specified by the terminal device 300 by one step. Next, the Web server execution unit 162 determines whether or not the value of the lens movement amount parameter after the change matches an upper limit value or a lower limit value of a preset range (Step T17).

If the value of the lens movement amount parameter does not match the upper limit value or the lower limit value (step T17 / NO), the Web server execution unit 162 causes the projection control unit 161 to control the projection optical system driving unit 123, and the projection lens The lens position of 114 is changed (step T19). The lens movement amount of the projection lens 114 is a distance corresponding to one step of the lens movement amount parameter. Then, the Web server execution unit 162 returns to the determination in Step T8. When the value of the lens movement amount parameter matches the upper limit value or the lower limit value (step T17 / YES), the Web server execution unit 162 generates a response command to the second instruction command. The Web server execution unit 162 generates a response command notifying that the lens position of the projection lens 114 has reached the upper limit or the lower limit, and transmits the response command to the terminal device 300 (Step T18). Then, the Web server execution unit 162 returns to the determination in Step T8.
When transmitting the second instruction command to projector 100 (step S22), control unit 310 of terminal device 300 determines whether a response command has been received from projector 100 (step S23). If a response command has not been received (step S23 / NO), control unit 310 returns to the determination of step S11. If a response command has been received from projector 100 (step S23 / YES), control unit 310 executes the above-described second notification (step S24).

When determining in step S12 that the input is not an input for selecting an object image (step S12 / NO), control unit 310 of terminal device 300 determines whether the received input is a logout operation. (Step S25). When determining that the received operation is a logout operation (step S25 / YES), control unit 310 transmits a logout request to projector 100 (step S26). If it is determined that the request is not a logout request (step S25 / NO), control unit 310 executes a process corresponding to the accepted operation (step S27).
In step T20, the Web server execution unit 162 determines whether a logout request has been received (step T20). If the logout request has not been received (step T20 / NO), the Web server execution unit 162 proceeds to the determination of step T8. When the logout request is received (step T20 / YES), the Web server execution unit 162 releases the login of the corresponding user (step T21), and ends this flow.

As described in detail above, the display system 1 of the present embodiment includes the terminal device 300 and the projector 100.
The terminal device 300 transmits, to the projector 100, a command corresponding to the received operation, an operation input unit 304 for receiving an operation, a vibration device 306 as a notification unit for performing notification, a voice processing unit 307, and a speaker 308. A mobile communication unit 301 and a control unit 310 that receive a response command notified from the mobile terminal.
The projector 100 controls the display unit 110 that displays an image, the adjustment unit 163 that changes a parameter according to a command received from the terminal device 300, and the projection optical system driving unit 123 based on the changed parameter. The projection control unit 161 that adjusts the display mode of the image at 110, the determination unit 164 that determines that the parameter changed by the adjustment unit 163 has reached the upper limit or the lower limit of the changeable range, and the determination result of the determination unit 164 A web server execution unit 162 and a wireless communication unit 137 that transmit a notification signal to the terminal device 300 based on the notification signal are provided.
When receiving the notification signal by the mobile communication unit 301, the terminal device 300 notifies the vibration device 306 as a notification unit, the voice processing unit 307, and the speaker 308. Therefore, when the display mode of the image displayed by the projector 100 is adjusted by the terminal device 300, the operability of the terminal device 300 can be improved.

  Further, the projector 100 includes a light source unit 111, a light modulation device 112 that modulates light emitted from the light source unit 111 based on image data, and a projection optical system 113 that projects the light modulated by the light modulation device 112. Further, the projection optical system 113 controls the light modulation device 112 or the projection optical system 113 based on the parameters adjusted by the adjustment unit 163. Therefore, the light modulator 112 or the projection optical system 113 can be controlled by operating the terminal device 300.

  Further, the projection optical system 113 includes a projection lens 114. The parameters include a lens movement parameter which is a parameter relating to the lens movement of the projection lens 114. The projection control unit 161 adjusts the lens movement amount of the projection lens 114 based on the lens movement amount parameter adjusted by the adjustment unit 163. Therefore, the lens moving amount of the projection lens 114 can be adjusted by operating the terminal device 300.

  The parameters include a zoom amount parameter which is a parameter related to the zoom amount of the projection lens 114. The projection control unit 161 adjusts the zoom amount of the projection lens 114 based on the zoom amount parameter adjusted by the adjustment unit 163. Therefore, by operating the terminal device 300, the zoom amount of the projection lens 114 can be adjusted.

  The parameters include image processing parameters that are parameters relating to image processing on image data. The image processing unit 152 performs image processing on the image data based on the image processing parameters adjusted by the adjustment unit 163. The light modulation device 112 modulates light emitted from the light source unit 111 based on image data on which image processing has been performed by the image processing unit 152. Therefore, the brightness and hue of the image can be adjusted by operating the terminal device 300.

  The image processing parameters include a shape correction parameter that is a parameter relating to shape correction for image data. The image processing unit 152 performs shape correction on the image data based on the shape correction parameters adjusted by the adjustment unit 163. The display unit 110 displays an image based on the image data subjected to the shape correction by the image processing unit 152. Therefore, the shape of the image displayed on the display unit 110 can be corrected by operating the terminal device 300.

  Further, the projector 100 has a Web server that provides a Web page in response to a request from a Web browser of an external device. The terminal device 300 has a Web browser. The Web browser of the terminal device 300 transmits an operation signal corresponding to the operation received by the operation input unit 304 based on Web page data provided from the Web server of the projector 100, and transmits a notification signal transmitted from the projector 100 to the notification signal transmitted from the projector 100. Notify based on. Therefore, the display mode of the image displayed by the projector 100 can be adjusted by operating the Web browser of the terminal device 300.

  In addition, the terminal device 300 includes a vibration device 306 that performs notification. The terminal device 300 causes the vibration device 306 to vibrate the terminal device 300 when the notification signal is received by the mobile communication unit 301. Therefore, the projector 100 can transmit the notification signal to the terminal device 300 to vibrate the terminal device 300.

  In addition, the terminal device 300 includes a speaker 308 that performs notification. The terminal device 300 causes the speaker 308 to emit a notification sound when the notification signal is received by the mobile communication unit 301. Therefore, the projector 100 can transmit a notification signal to the terminal device 300 and make the terminal device 300 emit a notification sound.

The above-described embodiment shows a preferred embodiment of the present invention, and does not limit the present invention, and various modifications can be made without departing from the gist of the present invention.
For example, in the above-described embodiment, the case where the terminal device 300 is operated to change the lens movement amount of the projection lens 114 has been described as an example. As another example, by operating the terminal device 300, the projector 100 may cause the projector 100 to perform adjustment such as adjustment of a zoom amount and a focus amount, adjustment of image brightness and hue, shape correction, and correction of distortion.

When adjusting the zoom, the adjustment unit 163 changes a zoom amount parameter, which is a parameter related to the zoom amount of the projection lens 114, according to an operation signal transmitted from the terminal device 300.
The projection control unit 161 calculates the driving direction of the projection lens 114 and the movement amount (zoom amount) of the projection lens 114 based on the zoom amount parameter changed by the adjustment unit 163. The projection control unit 161 generates a control signal for controlling the projection optical system driving unit 123 based on the calculated driving direction and the moving amount (zoom amount), and outputs the control signal to the projection optical system driving unit 123. The projection optical system driving unit 123 drives the stepping motor of the projection optical system driving unit 123 to control the lens position of the projection lens 114 based on the control signal input from the projection control unit 161, and controls the projection lens 114 Adjust the zoom amount. When adjusting the focus amount, the adjustment unit 163, the projection control unit 161 and the projection optical system driving unit 123 operate in the same manner as in the case of adjusting the zoom amount.

  Further, when performing color adjustment or brightness adjustment of an image, the adjustment unit 163 changes an image processing parameter for adjusting the color or brightness of the image according to an operation signal transmitted from the terminal device 300, and Output to the processing unit 152. The image processing unit 152 performs image processing for adjusting the brightness or hue of the image data expanded in the frame memory 153 according to the value of the image processing parameter input from the adjustment unit 163. The image processing unit 152 outputs the image data whose brightness or hue has been adjusted to the light modulator driving unit 122 as display image data. The light modulator driving unit 122 generates R, G, and B image signals based on the display image data input from the image processing unit 152, and drives the liquid crystal panel based on the generated image signals. Draw an image on the LCD panel. When adjusting the brightness of the image, the projection control unit 161 may adjust the luminance of the light source unit 111 according to the value of the image processing parameter input from the adjustment unit 163.

In the case of shape correction, the adjustment unit 163 changes a shape correction parameter for correcting the shape of an image according to an operation signal transmitted from the terminal device 300, and outputs the changed parameter to the image processing unit 152. The shape correction parameter is a parameter indicating an enlargement ratio or a reduction ratio for expanding or reducing image data expanded in the frame memory 153 in at least one of the vertical direction and the horizontal direction of the frame memory 153. The shape correction parameter is a parameter included in the image processing parameter.
The image processing unit 152 corrects the shape of the image data expanded in the frame memory 153 according to the value of the shape correction parameter input from the adjustment unit 163, and uses the corrected image data as display image data to drive the optical modulator. Output to the unit 122. The light modulator driving unit 122 generates R, G, and B image signals based on the display image data input from the image processing unit 152, and drives the liquid crystal panel based on the generated image signals. Draw an image on the LCD panel. Also, when correcting distortion, the adjustment unit 163, the image processing unit 152, and the light modulation device driving unit 122 operate in the same manner as in the case of shape correction.

  Further, in the above-described embodiment, as a first notification, a sound pattern, a scale, a rhythm sound, or the like is emitted from the speaker 308, and as a second notification, the housing of the terminal device 300 is vibrated by the vibration device 306. Was. As another notification method, the first notification and the second notification are sound emission by the speaker 308, and the sound pattern, scale, rhythm sound, and the like are changed between the first notification and the second notification. Is also good. Further, the first notification and the second notification may be vibrations by the vibration device 306, and the vibration intensity and the vibration pattern of the vibration device 306 may be changed between the first notification and the second notification. Further, an LED may be provided in the terminal device 300, and the first notification and the second notification may be performed by turning on or blinking the LED. For example, the blinking pattern of the LED may be changed between the first notification and the second notification. Further, at least one of the first notification and the second notification may be performed by combining lighting or blinking of the LED with vibration of the vibration device 306 or sound emission by the speaker 308.

  Further, in the above-described embodiment, the control unit 310 of the terminal device 300 executes a Web browser, and the projector 100 executes a Web server that provides a Web page in response to a request from the Web browser. Was performed. In addition, a dedicated application program may be installed in the terminal device 300, and the control unit 310 of the terminal device 300 may execute the application program to realize the processing of the terminal device 300. In this case, the terminal device 300 and the projector 100 may be connected to be able to perform data communication by a short-range wireless communication method such as wireless LAN, Bluetooth, UWB, or infrared communication, or a wireless communication method using a mobile communication line. The terminal device 300 executes the application program and transmits an operation signal corresponding to the operation received by the operation input unit 304 to the projector 100. The projector 100 receives an operation signal transmitted from the terminal device 300, changes a parameter according to the received operation signal, and adjusts a display mode of an image displayed on the display unit 110 based on the changed parameter. When determining that the changed parameter has reached the upper limit or the lower limit of the changeable range, the projector 100 transmits a notification signal to the terminal device 300.

  Also, the display device of the present invention has been described as a liquid crystal projector using a transmissive liquid crystal panel, but may be a projector using a reflective liquid crystal panel or a digital mirror device. Further, the display device is not limited to a projector that projects an image on the screen SC. For example, the display device is a liquid crystal monitor or a liquid crystal television for displaying an image on a liquid crystal display panel, a monitor device or a television receiver for displaying an image on a PDP (plasma display panel), or an organic light-emitting diode (OLED) or an OEL. Various display devices such as a monitor device for displaying an image on an organic EL display panel called “Organic Electro-Luminescence” or a self-luminous display device such as a television receiver are also included in the display device of the present invention.

  Further, each functional unit of the projector 100 and the terminal device 300 shown in FIG. 2 shows a functional configuration realized by cooperation of hardware and software, and a specific mounting form is not particularly limited. Therefore, it is not always necessary to individually implement hardware corresponding to each functional unit, and it is of course possible to adopt a configuration in which one processor executes a program to realize the functions of a plurality of functional units. Further, in the above embodiment, some of the functions realized by software may be realized by hardware, or some of the functions realized by hardware may be realized by software.

  Further, in the above-described embodiment, the lens moving amount parameter is described as indicating the moving direction and the moving amount after the projection lens 114 moves from the predetermined reference position in the direction orthogonal to the projection direction. Is not limited to this example.

DESCRIPTION OF SYMBOLS 1 ... Display system, 100 ... Projector, 110 ... Display part, 111 ... Light source part (light source), 112 ... Light modulator (modulation part), 113 ... Projection optical system (optical part), 114 ... Projection lens, 123 ... Projection Optical system driving unit (processing unit), 137 wireless communication unit, 152 image processing unit (processing unit), 153 frame memory, 160 control unit (notification transmission unit), 161 projection control unit (processing unit), 162 Web server execution unit (notification transmission unit) 163 adjustment unit 164 determination unit 165 authentication unit 166 session management unit 170 storage unit 200 image supply device 300 terminal device 301 ... Mobile communication unit (transmission unit, notification reception unit), 302 display unit, 303 display panel, 304 operation input unit (operation unit), 305 storage unit, 306 vibration device (notification unit), 30 ... audio processing unit (notification unit), 308 ... speaker (notifying unit), 309 ... microphone, 310 ... control unit (transmitting unit, the notification receiving unit).

Claims (11)

A display system including a terminal device and a display device,
The terminal device,
An operation unit for receiving an operation,
A notification unit that performs notification,
A transmitting unit that transmits an operation signal corresponding to the operation received by the operation unit to the display device;
A notification receiving unit that receives a notification signal transmitted from the display device,
The display device,
A display unit for displaying an image,
An adjusting unit that changes a parameter according to the operation signal received from the terminal device;
A processing unit that adjusts a display mode of an image on the display unit based on the changed parameter,
A determination unit that determines that the parameter changed by the adjustment unit has reached an upper limit or a lower limit of a changeable range,
A notification transmission unit that transmits the notification signal to the terminal device based on the determination result of the determination unit,
The display system, wherein the terminal device performs notification by the notification unit when the notification signal is received by the notification reception unit. The display device is a projector including a light source, a modulation unit that modulates light emitted by the light source based on image data, and an optical unit that projects light modulated by the modulation unit,
The display system according to claim 1, wherein the processing unit controls the modulation unit or the optical unit based on the parameter adjusted by the adjustment unit. The optical unit has a projection lens,
The parameters include a lens moving amount parameter that is a parameter related to a lens moving amount of the projection lens,
The display system according to claim 2, wherein the processing unit adjusts a lens movement amount of the projection lens based on the lens movement amount parameter adjusted by the adjustment unit. The optical unit has a projection lens,
The parameter includes a zoom amount parameter that is a parameter related to a zoom amount of the projection lens,
The display system according to claim 2, wherein the processing unit adjusts a zoom amount of the projection lens based on the zoom amount parameter adjusted by the adjustment unit. The parameters include image processing parameters that are parameters related to image processing on the image data,
The processing unit performs image processing on the image data based on the image processing parameters adjusted by the adjustment unit,
5. The display system according to claim 2, wherein the modulation unit modulates light emitted from the light source based on the image data on which the image processing has been performed by the processing unit. 6. The image processing parameters include a shape correction parameter that is a parameter related to shape correction for the image data,
The processing unit performs shape correction on the image data based on the shape correction parameter adjusted by the adjustment unit,
The display system according to claim 5, wherein the display unit displays an image based on the image data on which the shape correction has been performed by the processing unit. The display device has a Web server that provides a Web page in response to a request from a Web browser of an external device,
The terminal device has the Web browser,
The Web browser included in the terminal device transmits an operation signal corresponding to an operation received by the operation unit based on Web page data provided from the Web server of the display device, and is transmitted from the display device. The display system according to any one of claims 1 to 6, wherein notification is performed based on the notification signal. The terminal device includes a vibration device as the notification unit,
The display system according to any one of claims 1 to 7, wherein the terminal device is vibrated by the vibration device when the notification signal is received by the notification receiving unit. The terminal device includes a speaker as the notification unit,
The display system according to any one of claims 1 to 8, wherein the notification sound is emitted by the speaker when the notification signal is received by the notification receiving unit. An operation unit for receiving an operation on the input screen ;
A notification unit that performs notification,
A communication unit that communicates with a display device that displays an image;
When the operation unit receives a long-press operation of long-pressing the input screen, an operation signal corresponding to the long-press operation is transmitted to the display device by the communication unit, and the notification unit executes the first notification. Let
When a notification signal notifying that the parameter for changing the display mode of the image displayed by the display device has reached the upper limit or the lower limit of the changeable range has been received from the display device, the first notification is sent to the notification unit. A control unit configured to stop and execute a second notification different from the first notification ;
A terminal device comprising: A control method of a display system including a terminal device and a display device,
In the terminal device, a step of receiving an operation by an operation unit included in the terminal device,
Transmitting an operation signal corresponding to the received operation to the display device,
In the display device, a step of changing a parameter according to the operation signal,
Based on the changed parameters, the display device adjusts the display mode of the image displayed by the display unit,
Determining that the changed parameter has reached the upper or lower limit of the changeable range,
Transmitting a notification signal to the terminal device based on the determination result of the determining step,
The control method of a display system, comprising a step of, when the terminal device receives the notification signal from the display device, notifying by a notification unit included in the terminal device.

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