JP2008116706A - Projector, screen, display system, and display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector or the like capable of displaying information concerning the state of the projector or information concerning the setting thereof to be more easy-to-view. <P>SOLUTION: The projector 100 includes: a projection part 190 for projecting an image to an aimed area on a screen based on image data; an instruction information input part 110 for inputting instruction information by a user; and a transmission part 120 for transmitting data to be displayed for displaying a state image concerning the state of the projector 100 or a setting image concerning the setting of the projector to a display part provided on the outside of the aimed area based on the instruction information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a projector, a screen, a display system, and a display method.

  As described in Japanese Patent Application Laid-Open No. 2004-85961, etc., conventionally, information relating to the state of the projector and information relating to settings are displayed as an OSD (On Screen Display) and displayed in a manner that is superimposed on the original image. It was. For this reason, when the image is distorted or out of focus, it is difficult for the user to check information on the state of the projector.

  For example, when the lamp of the projector has reached the end of its life, the OSD cannot be displayed. Therefore, in a conventional projector, an LED (Light Emitting Diode) provided in the casing is caused to emit light for notification. For this reason, it was difficult for the user to determine the lamp life.

  As described above, there is a demand for a technique that makes it easy to check information on the state and settings of the projector.

  In addition, for example, when a projector projects a video of a movie having subtitles based on content data from a DVD player, the subtitles are displayed on the original image.

For example, in Japanese Patent Laid-Open No. 6-82912, an image projection optical system and a caption projection optical system are provided, a polarizing plate is provided in front of the caption projection optical system, and a viewer wears special glasses. Whether to display captions or not is described.
JP 2004-85961 A JP-A-6-82912

  However, in the technique disclosed in Japanese Patent Laid-Open No. 6-82912, the subtitle cannot be viewed when the viewer wears the glasses, and the subtitle is superimposed on the original image when the viewer removes the glasses. Will be.

  For this reason, a viewer who wants to view subtitles can only view the subtitles superimposed on the original image, making it difficult to see the original image.

  A first object of the present invention is to provide a projector, a screen, a display system, and a display method capable of displaying information relating to the state of the projector and information relating to settings in a more easily viewable manner. The object is to provide a projector, a screen, a display system, and a display method capable of displaying subtitles and the like attached to video data in an easy-to-view manner.

In order to solve the above problems, a projector according to the present invention provides:
A projection unit that projects an image onto a target area of a screen based on image data;
An instruction information input unit for inputting instruction information by a user;
Based on the instruction information, a transmission unit that transmits display target data for displaying a state image related to the state of the projector or a setting image related to the setting of the projector to a display unit provided outside the target region;
It is characterized by including.

The screen according to the present invention is
A target area for displaying an image projected by the projector;
A receiving unit for receiving, from the projector, display target data for displaying a state image relating to the state of the projector or a setting image relating to the setting of the projector;
A display unit that is provided outside the target region and displays the state image or the setting image based on the display target data;
It is characterized by including.

  The display system according to the present invention includes the projector and the screen.

Moreover, the display method according to the present invention includes:
A projection unit that projects an image onto a target area of a screen based on image data;
An instruction information input unit for inputting instruction information by a user;
Based on the instruction information, a transmission unit that transmits display target data for displaying a state image related to the state of the projector or a setting image related to the setting of the projector to a display unit provided outside the target region;
A projector including
The target area onto which the image is projected by the projector;
A receiving unit for receiving the display target data from the projector;
A display unit for displaying the state image or the setting image based on the display target data;
A display method using a screen including
The projection unit projects the image onto the target area,
The transmission unit transmits the display target data to the display unit,
The receiving unit receives the display target data,
The display unit displays the state image or the setting image based on the display target data.

  According to the present invention, the display unit outside the target area on which the image is projected displays information related to the state of the projector and information related to the settings, so that the projector or the like can display these information more easily. .

Further, the projector includes a setting unit configured to perform setting according to the information when the information related to the setting is input as the instruction information.
The setting image is an image showing a setting target item selected by the user from a plurality of setting targets and the setting of the item,
The setting unit may change the setting when the instruction information indicating that the setting of the item is changed is input.

  According to this, the projector or the like can perform the setting by synchronizing the display on the display unit and the setting unit.

  Further, the transmission unit may transmit data for displaying the items and the settings in one line or one column of character strings as the display target data.

  According to this, the projector or the like displays the item or the like on the display unit with a single line of character string, so that even if the display area of the display unit is narrow or the display capability of the display unit is low, Etc. can be easily displayed.

The projector according to the present invention is
A projection unit that projects an image onto a target area of the screen based on the video data;
A transmission unit that transmits accompanying data accompanying the video data to a display unit provided outside the target region in order to display a character image based on the accompanying data;
It is characterized by including.

The screen according to the present invention is
A target area for displaying an image projected by the projector;
A receiving unit for receiving accompanying data accompanying the image transmitted from the projector;
A display unit that is provided outside the target region and displays a character image based on the accompanying data;
It is characterized by including.

  The display system according to the present invention includes the projector and the screen.

Moreover, the display method according to the present invention includes:
A projection unit that projects an image onto a target area of the screen based on the video data;
A transmission unit that transmits accompanying data accompanying the video data to a display unit provided outside the target region in order to display a character image based on the accompanying data;
A projector including
The target area onto which the image is projected by the projector;
A receiving unit for receiving the accompanying data;
A display unit for displaying the character image based on the accompanying data;
A display method using a screen including
The projection unit projects the image onto the target area,
The transmission unit transmits the accompanying data to the display unit,
The receiving unit receives the accompanying data;
The display unit displays the character image based on the accompanying data.

  According to the present invention, a projector or the like can display an image that is easier to view by displaying, as a character image, the accompanying data indicating the subtitles or the like accompanying the video data on the display unit outside the target area on which the image is projected. it can.

In addition, the projector
A data input unit for inputting content data including the video data and the accompanying data;
A data separator for separating the video data and the accompanying data from the content data;
May be included.

  According to this, even if the projector or the like is input in a state where the video data and the accompanying data are mixed, the accompanying data can be separated and displayed on the display unit.

In addition, the projector includes an instruction information input unit that inputs instruction information indicating whether or not subtitles are displayed by the user.
The accompanying data includes subtitle data for displaying the subtitle,
The transmission unit transmits the accompanying data to the display unit when the instruction information is information for instructing to display the subtitle, and the instruction information is information for instructing not to display the subtitle. In some cases, the accompanying data may not be transmitted to the display unit.

  According to this, the projector or the like can control whether or not captions are displayed in accordance with a user instruction.

  Hereinafter, a case where the present invention is applied to a display system including a projector and a screen will be described as an example with reference to the drawings. In addition, the Example shown below does not limit the content of the invention described in the claim at all. In addition, all of the configurations shown in the following embodiments are not necessarily essential as means for solving the problems described in the claims.

(Description of the entire system)
FIG. 1 is a schematic diagram of a display system in the present embodiment.

  The display system includes a projector 100 and a screen 200. The screen 200 includes a target area 201 on which an image is projected from the projector 100 and a display area 202 for displaying projector setting information, status information, movie subtitles, and the like.

  The projector 100 also has a function of transmitting display target data for displaying setting information and status information, accompanying data for displaying subtitles, and the like to the screen 200. The screen 200 includes display target data. Etc., and the setting information and the like are displayed.

  Hereinafter, a case where the display system displays setting information and status information and a case where subtitles are displayed will be described as examples.

(First embodiment)
FIG. 2 is a diagram illustrating an example of menu information in the first embodiment.

  When the user operates the remote controller (remote controller) and selects the environment setting from the menu of the projector 100, the menu has a tree structure as shown in FIG.

  For example, when performing image quality adjustment, the user selects “image quality adjustment” in the environment settings, selects “color mode”, and selects “photo”, “sports”, “presentation”, “theater”, “dynamic”. To select the desired mode.

  The display system of this embodiment displays a menu image in the display area 202 in response to such multi-step selection.

  FIG. 3 is a diagram illustrating an example of transition of menu images 301 to 303 in the first embodiment.

  Projector 100 transmits display target data to screen 200 based on instruction information from the remote controller, and screen 200 displays menu images 301 to 303 in display area 202 based on the display target data.

  For example, when the user selects the environment setting, the projector 100 transmits display target data for displaying “image quality adjustment”, which is the first item in the first stage, to the screen 200. As a result, the screen 200 displays a menu image 301 indicating “image quality adjustment” on the left portion of the display area 202.

  When the user presses the down arrow key of the remote controller, the projector 100 transmits display target data for displaying “video”, which is the second item in the first stage, to the screen 200. As a result, the screen 200 displays “video” in the left portion of the display area 202.

  Further, when the user presses the right arrow key on the remote controller in a state where “image quality adjustment” is displayed, the projector 100 displays a display target for displaying “color mode” that is the first item in the second stage. Data is transmitted to the screen 200. Accordingly, the screen 200 displays a menu image 302 indicating “image quality adjustment” in the left part of the display area 202 and “color mode” in the central part.

  Further, when the user presses the right arrow key on the remote controller while “image quality adjustment” and “color mode” are displayed, projector 100 displays “photo”, which is the first item in the third stage. Display target data is transmitted to the screen 200. As a result, the screen 200 displays a menu image 303 indicating “image quality adjustment” in the left portion of the display area 202, “color mode” in the center portion, and “photo” in the right portion.

  If the user presses the left arrow key of the remote controller twice while the menu image 303 is displayed, the display in the display area 202 disappears and the change content is confirmed. Further, projector 100 may confirm the change contents when the enter key of the remote control is pressed and turn off display in display area 202.

  As described above, in this embodiment, the display system does not display the menu image as an OSD, but displays it as a character string in the display area 202 outside the target area 201.

  Next, functional blocks of the projector 100 and the screen 200 for implementing such functions will be described.

  FIG. 4 is a functional block diagram of the projector 100 and the screen 200 in the first embodiment.

  The projector 100 includes a data input unit 150 that inputs image data from a PC (Personal Computer) or the like, an image generation unit 180 that generates an image based on the image data, and a projection unit 190 that projects an image on the target area 201. It is configured to include.

  In addition, the projector 100 includes an instruction information input unit 110 that inputs user instruction information, a setting unit 130 that performs settings according to the instruction information, a storage unit 140, and a transmission unit 120 that transmits display target data 144. It is configured to include.

  The storage unit 140 stores menu data 142 indicating menu image transitions, display target data 144 set by the setting unit 130, and the like.

  The screen 200 includes a receiving unit 210 that receives display target data 144 from the projector 100 and a display unit 220 that displays an image based on the display target data 144.

  Note that, for example, the following may be employed as hardware for implementing the functions of these units. For example, the instruction information input unit 110 includes an infrared receiving unit that receives infrared light from a remote controller, operation buttons, the setting unit 130 includes a CPU, the storage unit 140 includes a RAM, a ROM, and the data input unit 150. As an image input terminal, as an image generation unit 180, as an image processing circuit, as a projection unit 190, as a liquid crystal panel, lamp, lens, etc., as a transmission unit 120, as a reception unit 210, as a wireless communication unit, as as a CPU, as a display unit 220. For example, a liquid crystal panel, an LED (Light Emitting Diode), or the like may be employed.

  Next, the flow of information display processing using these units will be described.

  FIG. 5 is a flowchart showing a flow of information display processing in the first embodiment.

  The setting unit 130 determines whether there is an instruction from the user based on the information from the instruction information input unit 110 (step P1).

  If there is an instruction, the setting unit 130 determines whether the instruction is a setting instruction (step P2). Actually, various instructions are input. Here, the types of instructions are for displaying a setting instruction for setting the color mode and the like of the projector 100 and the state of the lamp of the projector 100 and the like. Assume that there are two types of status display instructions.

  If it is a setting instruction, the setting unit 130 determines whether or not the current stage is the setting stage (the third stage described above) (step P3).

  In the setting stage, the setting unit 130 sets the color mode and the like of the projector 100 as in the normal setting (step P4). If it is not the setting stage, the setting (step P4) is not performed.

  Then, the setting unit 130 sets the display target data 144 according to the current state (step P5). Specifically, for example, the setting unit 130 sets display target data 144 for displaying “image quality adjustment” immediately after the environment setting is selected, and immediately after “image quality adjustment” is displayed. In the state, display target data 144 for displaying “image quality adjustment” and “color mode” is set.

  The setting unit 130 can grasp the current state based on, for example, the menu data 142 and the instruction history.

  The receiving unit 210 transmits the display target data 144 to the screen 200 at regular time intervals (for example, 1 second) or when receiving a transmission instruction from the setting unit 130 (step P8). The display target data 144 may be any of image data, character data, and display control data. Further, when transmitting the display target data 144, the transmission unit 120 may perform packetization, header addition, division, compression, and the like.

  The receiving unit 210 of the screen 200 receives the display target data 144 from the projector 100 (step S1). Note that, when the display target data 144 is compressed or the like, the receiving unit 210 restores the display target data 144 to the original state.

  Then, the display unit 220 of the screen 200 displays the menu image 301 and the like in the display area 202 based on the display target data 144 (step S2).

  Through the above procedure, the user can set the projector 100 while confirming the setting items and setting contents by using the menu image 301 displayed in the display area 202 or the like.

  On the other hand, when the user instruction content is a state display instruction, the setting unit 130 acquires information indicating a display target state (step P6). For example, when the user gives an instruction to display the lamp operation time, the setting unit 130 acquires data indicating the lamp operation time in the storage unit 140.

  Then, the setting unit 130 sets the display target data 144 based on the acquired information (Step P7).

  Since transmission of the display target data 144 (step P8) and after is the same as that in the case of the setting instruction, description thereof is omitted.

  Through the above procedure, the user can confirm information regarding the requested state of the projector 100 in the display area 202.

  As described above, according to the present embodiment, the display system displays the information related to the state of the projector and the information related to the settings in the display area 202 outside the target area 201 on which the image is projected. Since the image projected on the display area 202 and the image displayed in the display area 202 do not overlap, it is possible to display such information more easily.

  Further, according to the present embodiment, for example, even when the lamp of the projector 100 has reached the end of its life or when the projector 100 cannot be projected due to a failure of the image processing circuit, the transmission unit 120 remains in the state. The display object data 144 indicating the state can be transmitted and the display unit 220 can display the information indicating the state. Therefore, the projector 100 can notify the user of the state more reliably and appropriately.

  Further, according to the present embodiment, even when the focus of the projector 100 is not in focus on the target area 201 or when the projected image is distorted by protruding from the target area 201, the display unit 220 is not focused or distorted. Since the information indicating the state can be displayed, the projector 100 can notify the user of the state more reliably and appropriately. In addition, since the user does not need to adjust the focus and distortion in order to view the menu image, the display system can improve the convenience for the user.

  Further, according to the present embodiment, when the projector 100 is set, the display system can perform the setting by synchronizing the display of the display area 202 and the setting by the setting unit 130.

  In addition, according to the present embodiment, the display system displays items or the like in the display area 202 as a single line of character string, so that the display system 202 is narrow or the display capability of the display unit 220 is low. However, items and the like can be displayed in an easy-to-see manner.

  In addition, according to the present embodiment, since the image displayed in the display area 202 is an image with a small amount of data such as a character image, the load at the time of transmission / reception is small, and the display system can transmit and receive reliably and at high speed. Can do.

(Second embodiment)
Next, caption display will be described.

  FIG. 6 is a diagram showing an example of caption display in the second embodiment.

  When subtitles are displayed, an image (video) of one scene of a movie is displayed in the target area 201, and subtitles (for example, a performer's dialogue) are displayed in the display area 202. Thus, in this embodiment, the display system displays subtitles in a state where the display system does not overlap with the video.

  Next, functional blocks of the projector 100 and the screen 200 for implementing such functions will be described.

  FIG. 7 is a functional block diagram of the projector 100 and the screen 200 in the second embodiment.

  The projector 100 includes a data input unit 150 that inputs content data and the like from a DVD player, a data separation unit 160 that separates video data from the content data and accompanying data accompanying the video data, and an image based on the video data. The image generation unit 180 to be generated and a projection unit 190 that projects an image onto the target area 201 are configured.

  The projector 100 includes an instruction information input unit 110 that inputs instruction information from a user, a storage unit 140, and a transmission unit 120 that transmits accompanying data 146.

  In addition, the storage unit 140 stores accompanying data 146 and the like separated by the data separation unit 160.

  The screen 200 includes a receiving unit 210 that receives the accompanying data 146 from the projector 100 and a display unit 220 that displays an image based on the accompanying data 146.

  Note that, for example, the following may be employed as hardware for implementing the functions of these units. For example, the instruction information input unit 110 includes an infrared receiving unit that receives infrared light from a remote controller, operation buttons, the storage unit 140 includes RAM and ROM, the data input unit 150 includes an image input terminal, and the like. The separation unit 160 includes a CPU, RAM, decoder, the image generation unit 180 includes an image processing circuit, the projection unit 190 includes a liquid crystal panel, a lamp, a lens, the transmission unit 120, the reception unit 210 includes a wireless communication unit, and a CPU. As the display unit 220, a liquid crystal panel, an LED, or the like may be used.

  Next, the flow of subtitle display processing using these units will be described.

  FIG. 8 is a flowchart showing the flow of caption display processing in the second embodiment.

  The data input unit 150 inputs content data from a DVD player or the like (step P11).

  The data separation unit 160 separates the content data into video data and accompanying data 146 (step P12), and stores the accompanying data 146 in the storage unit 140 (step P13). For example, when the content data format is DVD-Video format, video, audio, and subtitles are included in 1 GB units, but the data separation unit 160 extracts subtitle information in Srt format, idx + sub format, etc. Can do. Further, when the content data format is a closed caption format, the data separation unit 160 can extract subtitle information in the SAMI (Synchronized Accessible Media Interface) format, the SMIL format, or the like. The accompanying data 146 may be image data or character data. Further, the data separation unit 160 may generate display control data based on the extracted caption information and store the display control data in the storage unit 140 as the accompanying data 146.

  The transmission unit 120 transmits the accompanying data 146 toward the screen 200 (step P14).

  The image generation unit 180 generates an image based on the video data separated by the data separation unit 160 (step P15), and the projection unit 190 projects the image (step P16). The projector 100 can execute Steps P13 and P14 and Steps P15 and P16 in parallel. Further, projector 100 repeatedly executes the processes of steps P11 to P16 (step P17).

  On the other hand, the receiving unit 210 of the screen 200 receives the accompanying data 146 from the projector 100 (step S11). Note that when the accompanying data 146 is compressed, the receiving unit 210 restores the accompanying data 146 to the original state.

  Then, the display unit 220 of the screen 200 displays subtitles and the like in the display area 202 based on the accompanying data 146 (step S12).

  As described above, according to the present embodiment, the display system displays, as a character image, accompanying data indicating captions attached to video data in the display area 202 outside the target area 201 on which the image is projected. Therefore, it is possible to display more easily.

  Further, according to the present embodiment, the display system separates the accompanying data using the data separation unit 160 and displays the display unit 220 even when the video data and the accompanying data are input in a mixed state. Can be displayed.

  Further, according to the present embodiment, the display system can display subtitles separately from the video, so that the subtitles can be easily displayed even when the image quality of the video is deteriorated.

  In addition, according to the present embodiment, the display area 202 is not affected by the distance between the projector 100 and the screen 200, the lamp brightness decrease of the projector 100, and the like, so that the display system can display subtitles in an easy-to-see manner.

  Note that the instruction information input unit 110 may input instruction information indicating whether or not a caption is displayed by the user. The data separation unit 160 stores the accompanying data 146 indicating the caption in the storage unit 140 when there is a caption display instruction, and does not store the accompanying data 146 in the storage unit 140 when there is a caption non-display instruction.

  According to this, the display system can control whether or not subtitles are displayed in accordance with a user instruction. In particular, since the subtitle display part is independent of the video, the user can easily select the presence or absence of the subtitle.

(Third embodiment)
Next, a case where an image is projected using a plurality of projectors 100 will be described.

  FIG. 9 is a diagram illustrating an example of a caption display state in the third embodiment.

  For example, a case where four projectors 100-1 to 100-4 each share a region and project one image onto a target region 201 on a large screen in a movie theater will be described as an example.

  In the conventional method, subtitles are projected on the image. For this reason, as shown in FIG. 9, when a plurality of projectors 100 share a region and project one image, captions cannot be displayed appropriately.

  On the other hand, according to the present embodiment, the subtitles are displayed independently in the display area 202, so that even when a plurality of projectors 100 share the area and project one image, the subtitles are appropriately displayed. Can be displayed.

(Fourth embodiment)
Next, a case where the display area 202 is formed as a display unit that can be attached to and detached from the screen 200 will be described.

  FIG. 10 is a diagram illustrating an example of a display state in the fourth embodiment.

  For example, when the projector 100 is used at home, there is no room for installing the large screen 200, there is no space above and below the screen 200, or there is a desire to display subtitles and the like vertically in the user's preference. There is.

  In order to cope with such a case, the display unit 203 is formed so that a user can attach it to any one side outside the screen 200 having the target area 201.

  Here, it is assumed that the display unit 203 includes a three-dimensional sensor in addition to the reception unit 210 and the display unit 220 described above.

  For example, as shown in FIG. 10, when the display unit 203 is attached to the right side of the screen 200 in the vertical direction, the receiving unit 210 grasps that the display unit 203 is attached in the vertical direction by a three-dimensional sensor. The display position and display direction of subtitles and the like are changed (for example, horizontal subtitles are changed to vertical writing, etc.) and displayed on the display unit 220.

  Accordingly, the display unit 203 can display information indicating the subtitles, the state of the projector 100, and the like in the vertical direction.

  Thus, the screen 200 may be formed as a screen having the display unit 203 that functions as the display area 202.

(Other examples)
In addition, application of this invention is not limited to the Example mentioned above, A various deformation | transformation is possible.

  For example, the instruction information input unit 110 may input instruction information for instructing a character font to be displayed in the display area 202. In this case, the setting unit 130 and the data separation unit 160 may transform the character fonts of the display target data 144 and the accompanying data 146 according to the instructed font.

  According to this, the user can display subtitles and the like with his / her favorite font.

  The information displayed in the display area 202 is not limited to a character string, and may be an image having a figure (for example, a logo mark, a trademark, an advertisement, etc.).

  The accompanying data 146 is not limited to data indicating a caption, and may be data indicating a title, a subtitle, a performer, an audio description, and the like.

  In addition, when the video data and the accompanying data 146 are input in a separated state from a DVD player or the like, the data separating unit 160 is unnecessary, and the data input unit 150 stores the input accompanying data 146 as it is in the storage unit 140. May be.

  The projector 100 is not limited to a projector using a liquid crystal panel, and may be, for example, a projector using a DMD (Digital Micromirror Device) developed by Texas Instruments, USA.

  Further, the functions of the projector 100 and the screen 200 may be distributed and implemented in a plurality of devices. For example, the functions of the projector 100 may be distributed and implemented in a PC and a projector.

It is the schematic of the display system in a present Example. It is a figure which shows an example of the menu information in a 1st Example. It is a figure which shows an example of the transition of the menu image in a 1st Example. It is a functional block diagram of the projector and screen in a 1st Example. It is a flowchart which shows the flow of the information display process in a 1st Example. It is a figure which shows an example of the subtitle display in a 2nd Example. It is a functional block diagram of the projector and screen in a 2nd Example. It is a flowchart which shows the flow of a caption display process in a 2nd Example. It is a figure which shows an example of the subtitle display state in a 3rd Example. It is a figure which shows an example of the display state in a 4th Example.

Explanation of symbols

  100 projector, 110 instruction information input unit, 120 transmission unit, 130 setting unit, 140 storage unit, 142 menu data, 144 display target data, 146 associated data, 150 data input unit, 160 data separation unit, 180 image generation unit, 190 Projection unit, 200 screen, 201 target area, 202 display area, 203 display unit, 210 reception unit, 220 display unit

Claims (12)

A projection unit that projects an image onto a target area of a screen based on image data;
An instruction information input unit for inputting instruction information by a user;
Based on the instruction information, a transmission unit that transmits display target data for displaying a state image related to the state of the projector or a setting image related to the setting of the projector to a display unit provided outside the target region;
Including a projector. The projector according to claim 1, wherein
A setting unit configured to perform setting according to the information when information on the setting is input as the instruction information;
The setting image is an image showing a setting target item selected by the user from a plurality of setting targets and the setting of the item,
The setting unit changes the setting when the instruction information indicating that the setting of the item is to be changed is input. The projector according to claim 2,
The transmission unit transmits data for displaying the item and the setting as a character string of one row or one column as the display target data. A projection unit that projects an image onto a target area of the screen based on the video data;
A transmission unit that transmits accompanying data accompanying the video data to a display unit provided outside the target region in order to display a character image based on the accompanying data;
Including a projector. The projector according to claim 4, wherein
A data input unit for inputting content data including the video data and the accompanying data;
A data separator for separating the video data and the accompanying data from the content data;
Including a projector. The projector according to any one of claims 4 and 5,
Including an instruction information input unit for inputting instruction information indicating whether or not subtitles are displayed by the user;
The accompanying data includes subtitle data for displaying the subtitle,
The transmission unit transmits the accompanying data to the display unit when the instruction information is information for instructing to display the subtitle, and the instruction information is information for instructing not to display the subtitle. In some cases, the projector does not transmit the accompanying data to the display unit. A target area for displaying an image projected by the projector;
A receiving unit for receiving, from the projector, display target data for displaying a state image relating to the state of the projector or a setting image relating to the setting of the projector;
A display unit that is provided outside the target region and displays the state image or the setting image based on the display target data;
A screen characterized by including. A target area for displaying an image projected by the projector;
A receiving unit for receiving accompanying data accompanying the image transmitted from the projector;
A display unit that is provided outside the target region and displays a character image based on the accompanying data;
A screen characterized by including.   A display system comprising the projector according to claim 1 and the screen according to claim 7.   A display system comprising the projector according to claim 4 and the screen according to claim 8. A projection unit that projects an image onto a target area of a screen based on image data;
An instruction information input unit for inputting instruction information by a user;
Based on the instruction information, a transmission unit that transmits display target data for displaying a state image related to the state of the projector or a setting image related to the setting of the projector to a display unit provided outside the target region;
A projector including
The target area onto which the image is projected by the projector;
A receiving unit for receiving the display target data from the projector;
A display unit for displaying the state image or the setting image based on the display target data;
A display method using a screen including
The projection unit projects the image onto the target area,
The transmission unit transmits the display target data to the display unit,
The receiving unit receives the display target data,
The display method, wherein the display unit displays the state image or the setting image based on the display target data. A projection unit that projects an image onto a target area of the screen based on the video data;
A transmission unit that transmits accompanying data accompanying the video data to a display unit provided outside the target region in order to display a character image based on the accompanying data;
A projector including
The target area onto which the image is projected by the projector;
A receiving unit for receiving the accompanying data;
A display unit for displaying the character image based on the accompanying data;
A display method using a screen including
The projection unit projects the image onto the target area,
The transmission unit transmits the accompanying data to the display unit,
The receiving unit receives the accompanying data;
The display method, wherein the display unit displays the character image based on the accompanying data.

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