JP2019168600A - Display device, control method thereof, and program - Google Patents

Abstract

To provide a method for reducing time and effort when selecting a display method.SOLUTION: A display device includes a plurality of input units for receiving an image signal from an external device, and a control unit for controlling a display unit on the basis of the inputted image signal. The control unit controls the display unit so as to display a selection image for a user to select any display method among a plurality of object display methods determined on the basis of additional information added to the image signal inputted to the plurality of input units on a screen, and controls the display unit so as to display an image based on the inputted image signal on the screen by using the display method selected by the user by using an instruction unit.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display device, and more particularly to a display device that controls a display method of image signals input from a plurality of input terminals.

In recent years, new transmission standards have been used in addition to conventional transmission standards in order to cope with higher resolution and higher frame rate of video. For example, SMPTE (Society of Motion Picture and Television)
There is SMPTE ST 372 standardized by Engineers). If the Dual Link of SMPTE ST 372 is used, video can be transmitted with two SDI (Serial Digital Interface) signals. Similarly, there is a quad link that transmits video using four SDI signals, and a RAW transmission that maps and transmits RAW data to a plurality of SDI signals. In this way, a plurality of input terminals are provided, and a single video can be displayed by a single video signal, or a single video can be displayed by a plurality of video signals. There are possible display devices.

Furthermore, there is a display device that can display a PbyP (Picture by Picture) video that displays a plurality of videos on the same screen. Since the number of display methods that can be used in one display device has increased in this manner, the user needs to select a display method to be used from among a plurality of display methods.
Patent Document 1 discloses a technique for rearranging and displaying an array of menu items according to the characteristics of an input signal.

JP, 2006-018249, A

However, even if the technique of Patent Document 1 is used, the user needs to select one display method from many display methods displayed as menu items, which is complicated.
SUMMARY An advantage of some aspects of the invention is that it provides a method for reducing the trouble of selecting a display method.

A first aspect of the present invention includes a display unit that displays an image on a screen, a plurality of input units that receive input of an image signal from an external device, an instruction unit for inputting a user instruction, and the input image A control unit that controls the display unit based on a signal, wherein the control unit is determined based on additional information added to image signals input to the plurality of input units. The display unit is controlled to display a selection image for allowing the user to select one of the display methods on the screen, and the input is performed using the display method selected by the user using the instruction unit. A display device is provided, wherein the display unit is controlled to display an image based on the image signal thus displayed on the screen.
According to a second aspect of the present invention, there is provided a display device control method comprising: a display unit that displays an image on a screen; and a plurality of input units that receive input of image signals from an external device. The display so as to display a selected image for causing the user to select one of the plurality of target display methods determined based on the additional information added to the input image signal. And a step of controlling the display unit such that an image based on the input image signal is displayed on the screen using a display method selected by a user. Provided is a method for controlling a display device.
According to a third aspect of the present invention, there is provided a program for causing a computer to execute each step of the display device control method according to the second aspect.

  According to the present invention, it is possible to reduce time and labor when selecting a display method.

It is a figure which shows the structural example of a display system. It is a figure which shows an example of a structure of a display apparatus, and an example of metadata. FIG. 3 is a block diagram illustrating a functional configuration of a display control unit according to the first embodiment. It is a figure which shows the example of a display of a selection image. It is a figure which shows the flow of a selection method of a display method. It is a figure which shows the detail of a process of step S501 of FIG. It is a figure which shows the selection process of the object display method in Example 1. FIG. FIG. 6 is a block diagram illustrating a functional configuration of a display control unit according to a second embodiment. It is a figure which shows the example of the selection image after rearranging the display method. It is a figure which shows the selection process of the object display method in Example 2. FIG. FIG. 10 is a block diagram illustrating a functional configuration of a display control unit according to a third embodiment. It is a figure which shows the example of a display of the selection image in the case of incomplete several signal video | video. It is a figure which shows the selection process of the object display method in Example 3. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same components are denoted by the same reference numerals in principle, and redundant description is omitted. Further, numerical values and the like exemplified for embodying the description are not limited to these unless otherwise specified.
Further, the present invention is not limited to the following examples, and can be appropriately changed without departing from the gist thereof. For example, each configuration of the following embodiments may be appropriately modified or changed depending on the configuration of the apparatus to which the present invention is applied and various conditions.

<Example 1>
(Display system configuration)
1A and 1B are diagrams illustrating a configuration example of a display system. The display system includes a display device 100 and one or more external devices that input (send) video signals to the display device 100. 1A and 1B show an imaging device as an example of an external device.

  FIG. 1A is a first configuration example of the imaging device 10 and the display device 100. In the example of FIG. 1A, one imaging device 10 is connected to the display device 100, and a video signal is transmitted from the imaging device 10 to the display device 100 via a plurality (four in FIG. 1) of transmission paths. The imaging apparatus 10 may transmit a video signal using all four transmission paths, or may transmit a video signal using a part of the four transmission paths. The display device 100 can display a video based on a video signal input from one or a plurality of transmission paths.

For example, when one video is displayed based on a plurality of video signals such as Dual Link and Quad Link, the video signals are transmitted using two or four transmission paths. It is also possible to display a plurality of videos in parallel on one screen based on a plurality of video signals transmitted using a plurality of transmission paths.
Hereinafter, a display method for generating one video using one video signal is referred to as single signal video display. A display method for generating one video using a plurality of video signals is referred to as multi-signal video display. A display method in which one screen is divided and a plurality of videos are displayed in parallel on one screen is referred to as PbyP display.
The display method is a selection method for selecting a video signal used for displaying an image from one or more input video signals or an input terminal to which the video signal is input, and processing the selected video signal. It is assumed that at least one of the processing methods is included.

  FIG. 1B is a second configuration example of the imaging devices 10 a and 10 b and the display device 100. In the example of FIG. 1B, a plurality (two in FIG. 1B) of imaging devices 10a and 10b are connected to the display device 100. A video signal is transmitted from the imaging device 10a to the display device 100 via one transmission path, and a video signal is transmitted from the imaging device 10b to the display device 100 via another transmission path. Thus, the display device 100 may receive video signals from a plurality of external devices.

(Display device)
FIG. 2A is a diagram illustrating a configuration example of the display device 100. The display device 100 includes a plurality of input units 101a to 101d, a plurality of acquisition units 102a to 102d, a memory 103, a display unit 104, an operation unit 105, and a display control unit 110.
The input units 101a to 101d are input terminals for inputting video signals from an external device. Assume that the input units 101a to 101d receive video signals 1 to 4 (image signals) defined in the standard SMPTE related to video technology from the imaging device 10 that is a transmission source. The input units 101a to 101d output the received video signals to the corresponding acquisition units 102a to 102d and the display unit 104, respectively. Note that the input units 101a to 101d may receive video signals of standards other than SMPTE. In the following description, the plurality of input units 101a to 101d may be collectively referred to as “input unit 101”.

  The acquisition units 102a to 102d acquire various signal information (additional information) from the video signals received by the input units 101a to 101d, respectively. For example, the additional information is information indicating a transmission standard (standard information) such as Dual Link and Quad Link indicated by the payload ID given to the video signal. Further, the additional information may be signal format information such as the resolution (resolution information) of the video signal and the frame rate. Further, the additional information may be information indicating any one of the transmission device ID, the transmission terminal type, the device setting information, and the like described in the metadata included in the video signal. An example of metadata is shown in FIG. 2B.

Further, the additional information may be information other than the information described above. For example, as the additional information, information on a color space such as YCbCr or RGB, or information on a transmission method such as progressive or interlaced may be acquired.
Then, the acquisition units 102 a to 102 d output additional information acquired from the video signal to the display control unit 103. In the following description, the plurality of acquisition units 102a to 102d may be collectively referred to as “acquisition unit 102”.

  The display unit 104 is a display device that displays an image on a screen based on the control of the display control unit 110 described later. The display unit 104 is, for example, a display module including a liquid crystal panel capable of displaying 4K resolution video, a backlight, and a drive circuit board. The display unit 104 may be a display module including a display panel of a micro electro mechanical system (MEMS) shutter type or an organic EL display module.

The operation unit 105 is an operation member for the user to select one of a plurality of selection target display methods shown in the selection image (GUI) displayed on the display unit 104 as described later. For example, it is assumed that the operation unit 105 is a touch panel provided on the screen of the display unit 104. The operation unit 105 may be an operation member such as a button or a joystick provided on the display device 100. The operation unit 105 may be a combination of a plurality of the above-described members. An operation or instruction input by the user via the operation unit 105 is input to the display control unit 110.

  The display control unit 110 controls the display unit 104 to display an image by a set display method using the plurality of input video signals. The display control unit 110 is assumed to be a control circuit board of the display device 100 including an electronic circuit, a processor, a memory, and the like, for example. Further, the display control unit 110 generates a selection image to be displayed on the display unit 104 so that the user can select a display method based on the acquired additional information. The display control unit 110 determines a display method based on the operation and instruction input by the user via the operation unit 105 based on the displayed selection image. Based on the determined display method, the display control unit 110 causes the display unit 104 to display an image using the plurality of input video signals.

  The display device 100 can display images based on a plurality of video signals input from the external device to the display device 100 by various display methods. For example, among a plurality of input video signals, selection of a video signal used for display, selection of image processing applied to the video signal, selection of how to arrange the processed video signal on the screen, etc. The number of display methods composed of the combinations is enormous. Of the display methods that can be set in the display device 100, the user needs to select and set an optimal display method according to the input video signal.

  However, on the other hand, depending on the input video signal, there is a display method that is inappropriate as a display method for selection. For example, consider a case where the video signal A is input to the input unit 101a, the video signal B is input to the input unit 101b, and no video signal is input to the other input units 101c and 101d. In this case, display methods that can be displayed include single signal video display of signal A, single signal video display of signal B, multiple signal video display using signals A and B, and PbyP display of signals A and B. On the other hand, a display method in which only an image based on the video signal input to the input unit 101c (or 101d) is displayed on the screen can be selected by the user because the video signal is not input to the input unit 101c. The nature is low.

  There is also a display method that can display an image but is considered unlikely to be selected by the user. For example, in the above example, when the video signal A and the video signal B are the same video signal, a display method for displaying an image using only the video signal A and a display for displaying an image using only the video signal B Since all the methods display the same image, it is unlikely that the user selects either one of the display methods.

  Therefore, although the display device 100 can display the input video signal on the screen by various display methods, the user interface for allowing the user to select a desired display method from all the display methods that can be displayed is as follows. The operability is poor and the convenience is low.

  The display control unit 110 does not always present all display methods that can be displayed using a plurality of input video signals to the user, but selects only some display methods from the display methods that can be displayed. It has a mode presented to the user as a setting candidate. By narrowing down the display method choices and presenting them to the user in this way, the display method can be easily selected, so that the operability and convenience of the display device 100 can be improved as compared with the conventional case.

Specifically, the display control unit 110 can display an image using the input video signal among a plurality of display methods that can be set based on additional information added to the input video signal. Identify the method. Further, the display control unit 110 further determines one or more target display methods to be selected by the user based on the additional information among the specified display methods. The display control unit 110 controls the display unit 104 to display on the screen a selection image (GUI) for the user to select one of the one or more target display methods as the display method.

  The display control unit 110 displays a selection method according to an operation (instruction) input by the user via the operation unit 105 after displaying the selected image, and displays the image based on the input video signal. Set as a method. The display control unit 110 processes the input video signal based on the set display method, and displays an image on the display unit 104.

  The selection criteria (selection conditions) for selecting the target display method from all display methods that can be displayed can be arbitrarily determined. For example, a display method that is highly likely to be set by the user may be selected. The display method most likely to be set by the user is determined empirically based on the additional information added to the input video signal so far and the frequency information of the combination of the display method set by the user at that time. May be. In addition, the user can set a priority among a plurality of display methods in advance. Information associated with the display method and the priority is stored in the memory.

  Alternatively, the display method that is highly likely to be set by the user may be theoretically determined based on the video signal, the use / purpose of the display device 100, and the like. For example, in the case of the display device 100 that is generally used for video confirmation and video editing, the purpose of the user displaying the video on the display device 100 is to confirm the quality and specifications of the video signal. Many. In such a case, it is highly likely that the user desires to display the video signal by a display method that can reproduce the quality and specifications of the video signal input to the display device 100 as faithfully as possible. Therefore, as a preferred form of the display device 100 used for video confirmation and video editing, it is presented as a setting candidate based on a selection criterion that preferentially selects a display method with high quality and specification reproducibility of the input video signal. The display method to be selected should be selected. Here, “quality” includes, for example, resolution, color gamut, frame rate, dynamic range, gradation, and the like, and “specification” includes Dual Link, Quad Link, and the like. “Reproducibility of quality and specifications” is the degree of coincidence between the quality and specifications of the input video signal and the quality and specifications of the actual display. A display method that performs display according to the quality and specifications of the input video signal. This is the display method with the highest reproducibility. On the other hand, a display method in which the resolution and color gamut of the input video signal are converted, a method of displaying a dual link video signal as a single signal video, and the like are display methods with low reproducibility. In this way, by preferentially selecting a display method with high reproducibility, it can be expected that the probability that a display method that is highly likely to be set by the user can be presented as a setting candidate is increased.

  FIG. 3 is a block diagram schematically showing functions of the display control unit 110. The display control unit 110 includes a selection unit A111, a selection unit B112, a GUI generation unit 113, a setting unit 114, and an image processing unit 115. These functions are realized by developing a program stored in the memory 103 or a storage medium (not shown) in a working memory and executing the program by the processor. However, all or some of these functions may be configured by a circuit such as an ASIC or FPGA.

  The selection unit A111 selects a display method capable of displaying an image based on an input video signal among a plurality of display methods that can be set based on the additional information acquired by the acquisition units 102a to 102d. Execute specific processing to identify.

Based on the additional information acquired by the acquisition units 102a to 102d, the selection unit B112 performs a process of further specifying a display method with high video reproducibility as a target display method among the display methods specified by the specifying process. . Here, it can be said that the process of selection part B112 specifies the display method with high possibility that a user will select among the display methods specified by specific process as an object display method.

  The GUI generation unit 113 generates a GUI (Graphical User Interface) for the user to select one of the target display methods specified by the selection unit B112. The GUI generation unit 113 outputs the generated GUI to the image processing unit 115. It is assumed that the GUI is a GUI that displays a list of icons corresponding to the target display method. The GUI may be a dial-type selection image that can display any of the target display methods.

  The setting unit 114 sets the display method based on the operation and instruction input by the user via the operation unit 105 based on the GUI displayed on the display unit 104. Specifically, the display method corresponding to the selected icon is set by the user selecting one of the icons indicating the target display method indicated on the GUI and performing a determination operation. The setting unit 114 outputs information indicating the set display method to the image processing unit 115.

  The image processing unit 115 processes the input video signal based on the set display method, generates a display image signal, and outputs the display image signal to the display unit 104. Further, the image processing unit 115 outputs an image including the GUI acquired from the GUI generation unit 113 to the display unit 104.

Hereinafter, details of processing of each functional block of the display control unit 110 will be described.
The selection unit A111 may determine a display method that can be displayed by combining a plurality of pieces of information such as transmission standards, signal format information, and metadata included in the additional information. For example, it is assumed that the resolution of the signal format information added to the video signals input to the input units 101a to 101d is 2K (1920 × 1080) and the resolution of the metadata is 4K (3840 × 2160). In this case, the selection unit A111 specifies that the display method is capable of displaying a square division multi-signal video using four video signals. Each input video signal corresponds to one of 4K images divided into four.

  The selection unit B112 has video reproducibility based on one or more combinations of standard information included in the video signal, signal format information such as video resolution and frame rate, and device setting information described in the metadata. Identify high display methods. For example, when receiving a video signal of 4K video, the selection unit B112 determines that the display method of displaying in the state of 4K video has higher video reproducibility than the display method of converting to 2K video and displaying it. . Further, when the selection unit B112 determines reproducibility at the frame rate, when the frame rate of the signal information is 60 FPS, the display method displaying at 60 FPS is more reproducible than the display method displaying at 30 FPS. Will be expensive.

In addition, when the selection unit B112 determines reproducibility according to the transmission standard, if the signal information includes “Dual Link” or “Quad Link” as the transmission standard, the reproduction of the multi-signal video display corresponding to the transmission standard is performed. It may be determined that the property is high.
Even if the signal information does not include a transmission standard, it is determined that the reproducibility of the multi-signal video display is high when the amount of transmission data per predetermined time is more than a certain value and it is estimated that the transmission is performed through a plurality of transmission paths. May be. For example, when the frame rate of the 4K video signal is transmitted at 30 FPS, the selection unit B112 selects the single signal video display because it is assumed that the video signal is transmitted through one transmission path. On the other hand, when the frame rate of the 4K video signal is transmitted at 60 FPS, the selection unit B112 selects a multi-signal video because it is estimated that the 4K video signal is transmitted through a plurality of transmission paths.

Further, when the selection unit B112 determines the reproducibility based on the combination of the standard information and the video resolution, for example, it is determined that the reproducibility of the display method corresponding to the transmission standard is high. Subsequently, the selection unit B112 determines that the reproducibility of the display method having a high video resolution among the display methods corresponding to the transmission standard is higher than the other display methods in the display method corresponding to the transmission standard. judge. Note that the selection unit B112 may determine reproducibility based on other combinations.

  If display is possible as RAW data or normal data, the selection unit B112 determines that the display method for displaying as RAW data is more reproducible, and selects the display method for displaying as RAW data. Also good.

Further, when a plurality of identical video signals are included in the video signal received by the display device 100, the selection unit B112 uses one video signal among the plurality of identical video signals as a single signal video display. You may choose only. In other words, the selection unit B112 may not select a single signal video display using another video signal among a plurality of the same video signals. This is because the same video is displayed regardless of which one of the same video signals is displayed, and therefore it is sufficient to select any one single signal video display.
In addition, when a plurality of identical video signals are included in the video signal received by the display device 100, the selection unit B112 may not select PbyP display of the plurality of identical video signals. This is because when the PbyP display is used, the same image is displayed in parallel, which is less useful. FIG. 4C is a schematic diagram showing a case where images based on a plurality of input identical video signals are displayed in parallel.

The selection unit B112 may determine that the video signal is the same when the metadata transmission device ID (identification information) and the type of transmission terminal (type information) are the same. In the present embodiment, when the selection unit B112 compares the additional information of each video signal and there are two video signals having the same metadata transmission device ID and transmission terminal type, the two video signals are It is determined that the video signals are the same.
Further, the selection unit B112 may determine whether or not the video signals are the same using an additional condition such as a frame rate. Thereby, the accuracy of determination of whether or not they are the same video signal is improved. For example, the selection unit B112 may determine whether the video signal is the same video signal using an additional condition that the video signal is 4K video and the device setting (frame rate) is 30P or less. This is because a video signal can be transmitted through one transmission line if the frame rate is 4K video or less and the frame rate is 30P or less. On the other hand, when the frame rate is 4K video and the frame rate is 60P, it is necessary to transmit the video signal through at least two transmission paths.
Note that other methods may be used to determine whether or not they are the same video signal. For example, the determination may be made based on a video ID or the like for identifying a video.

The selection unit B112 determines that display is possible with PbyP display when a plurality of video signals of different videos are included. For example, the selection unit B112 may determine that different video images are input when a plurality of video signals are input by transmission devices with different transmission device IDs, and can be displayed in PbyP display.
The selection unit B112 may display an error screen on the display unit 104 when it is determined that there is no display method that can be displayed with reference to the signal format information of the video signal.

(Select display method)
FIG. 5 is a diagram illustrating an example of a flow of display method selection processing in the display device 100 according to the first embodiment. The processing in FIG. 5 is assumed to be executed periodically after the display device 100 is turned on.
In step S500, when the operation unit 105 receives an instruction to start changing the setting of the video display method, the display control unit 110 proceeds to the process of step S501. On the other hand, if the display control unit 110 does not accept an instruction to start changing the setting of the video display method, the display control unit 110 displays the video without changing the display method (step S506). If the display method has not been selected by the user yet (for example, when the display device 100 is activated), the display control unit 110 displays the video in the default display method in step S506.

  In step S501, the selection unit A111 of the display control unit 110 specifies a display method that can be displayed based on the additional information added to the input video signal. In step S502, the selection unit B112 of the display control unit 110 selects a display method (target display method) to be presented as a selection candidate to the user from the display methods specified in the specifying process in step S501. That is, in step S502, the display method is narrowed down. Details of the processes in steps S501 and S502 will be described later. Next, in step S503, the GUI generation unit 113 generates a selection image based on the selection result in step S502, and the image processing unit 115 displays the selection image on the screen as an On Screen Display (OSD) image. The selected image is an image to be used for a GUI for displaying a list of a plurality of selected target display methods and allowing the user to select a desired display method from among them. When the user selects one of the display methods using the operation unit 105, the setting unit 114 of the display control unit 110 detects that the display method has been selected (changed) in step S504, and the selected display method is selected. Control to switch to video is performed (step S505). On the other hand, when the display method is not selected (changed) by the user, the display method is not changed (step S506).

(Specific processing of display methods that can be displayed)
With reference to FIG. 6, the details of the display method specifying process in step S501 will be described.
In step S601, the acquisition units 102a to 102d acquire additional information from the video signals respectively input to the input units 101a to 101d, and transmit the additional information to the selection unit A111 and the selection unit B112.
In step S602, the selection unit A111 determines whether the signal format is compatible with the display device 100 based on the signal format information included in the additional information. The selection unit A111 proceeds to the process of step S603 if the video signal is compatible, and proceeds to the process of step S608 if the video signal is not compatible. In step S608, an OSD image including an error message indicating that display is impossible is displayed on the screen. For example, when a video signal of a transmission standard that the display device 100 does not support is received, the process of step S608 is performed.

If the input video signal is a compatible video signal, in step S603, the selection unit A111 displays “single signal video display” of the video signal as a list of display methods that can be displayed (hereinafter referred to as “display method list”). Add to Single signal video display is a display method in which an image is displayed using only one input video signal. When a plurality of video signals are input to the input unit 101, a single signal video display of each video signal is added to the display method list.
In step S604, the selection unit A111 determines whether or not a video signal capable of displaying a multi-signal video is included based on a transmission standard included in the additional information of the video signal. The multi-signal video display is a display method for displaying one image using a plurality of video signals. When the transmission standard is “Dual Link”, “Quad Link”, or the like, the selection unit A111 determines that multiple signal video display is possible. If multiple signal video display is possible, the selection unit A111 adds the multiple signal video display to the display method list in step S605.

In step S606, the selection unit A111 determines whether or not PbyP display is possible with the input video signal. For example, the selection unit A111 determines that PbyP display is possible when a plurality of different video signals are included. The PbyP display is a display method in which an image corresponding to one or more video signals among a plurality of video signals and an image corresponding to other video signals are displayed side by side on the screen.
If PbyP display is possible, the selection unit A111 adds the PbyP display to the display method list in step S607. In the following, the video displayed in the PbyP display is displayed as Pb.
It is called yP video.

(Selection of target display method)
With reference to FIG. 7, the details of the process for selecting the target display method in step S502 will be described.
In step S700, the selection unit B112 of the display control unit 110 determines whether or not a video signal capable of displaying a multi-signal video is included based on the additional information. Alternatively, the selection unit B112 may determine the presence / absence of a multi-signal video using the display method list generated by the selection unit A111. When there are multiple signal videos, the selection unit B112 deletes “single signal video display” of the video signals constituting the multiple signal videos from the display method list (step S701). For example, if there is a dual link input consisting of the video signal A and the video signal B, the “multi-signal video display” consisting of the video signal A and the video signal B is left, and “single” “Single-signal video display” is excluded from the list.

  In step S702, the selection unit B112 determines whether the same video signal is included in the plurality of input video signals based on the additional information. If there is the same video signal, the selection unit B112 leaves the single signal video display of one video signal in those video signals and the single signal video display of other video signals from the list in step S703. exclude.

(effect)
By processing as described above, a display method with low usefulness is excluded, and only a display method that is highly likely to be selected by the user is displayed. This saves time and effort for selecting a display method to be used.
For example, conventionally, since it is also possible to display an image with one video signal of four video signals used in quadview multi-signal video display, multi-signal video display and single-signal video display are set images. It was displayed. However, when displaying with single signal video display, the image quality is lower than when displaying with multiple signal video display, so the usefulness of single signal video display is low.
By displaying a list of setting candidates selected in the processing of this embodiment as a setting image, only setting candidates (icons) for a plurality of signal images are displayed. As a result, it is possible to reduce the trouble of reselecting the setting candidates and to make the user interface easier to use.

4A to 4D are diagrams illustrating display examples of the first embodiment and the conventional example. 4B and 4D are display examples of this embodiment, and FIGS. 4A and 4C are display examples of the conventional example. In FIG. 4A and FIG. 4B, video display is omitted, and only setting images are shown.
The icons of SingleA, SingleB, SingleC, and SingleD in FIG. 4A indicate single signal video display using video signal A, video signal B, video signal C, and video signal D. Further, the icon of QuadView (ABCD) indicates QuadView (multiple signal video display) using video signals A to D. Further, the PbyP (AB) icon in FIG. 3C indicates PbyP display using the video signal A and the video signal B.

In the OSD image 20A ′ of FIG. 4A in the conventional example, icons of SingleA, SingleB, SingleC, SingleD, and QuadView (ABCD) are displayed. In contrast, only the QuadView (ABCD) icon is displayed in the OSD image 20A of FIG. 4B of the present embodiment. By displaying the OSD image 20A according to the present embodiment, it is possible to prevent the user from erroneously selecting the icons of SingleA, SingleB, SingleC, and SingleD and displaying them with a low-quality display method.
As described above, according to the present embodiment, only the icon of a useful display method with high video reproducibility is displayed, so that it is possible to suppress erroneous use of a display method that is not useful.

4C and 4D, it is assumed that the display device 100 has received the same two video signals. It is assumed that Single A, Single B, and PbyP (AB) icons are displayed in the OSD image 20B ′ on the left side in FIG. 4C of the conventional example, and the Single A icon is currently selected. When the user selects PbyP (AB), the same video PbyP video 30 'is displayed on the left and right.
On the other hand, only the SingleA icon is displayed in the OSD image 20B of FIG. 4D. Therefore, the user can be prevented from selecting PbyP (AB) by mistake. In addition, since the SingleB icon that displays the same video as SingleA is not displayed, the OSD image becomes simpler and an easy-to-use user interface can be achieved.

Although the processing of the present embodiment when a video signal is transmitted has been described, the processing of the present embodiment may be applied when a still image signal is transmitted.
In addition, when display is possible with PbyP display, a combination of video signals used for PbyP display may be designated. For example, when three video signals A to C are input, the display control unit 110 displays PbyP (AB) for displaying the video signals A and B, PbyP (AC) for displaying the video signals A and C, PbyP (BC) setting candidates for displaying the video signals B and C are displayed on the OSD screen. Further, the display control unit 110 may display setting candidates such as PbyP (ABC) for displaying all the video signals A to C on the OSD screen.
In the flowchart of FIG. 7, the selection unit B112 displays several of the single signal video display, the multiple signal video display, and the PbyP display as setting candidates on the OSD screen. It is not limited. For example, when the video signal is RAW data, the selection unit B112 may select single signal video display or multiple signal video display of the RAW data as a setting candidate. In addition, when the resolution of the multi-signal video display is 4K and the resolution described in the signal format information of each video signal is 2K, the selection unit B112 selects the square division (SQD) multi-signal video display as a setting candidate. Also good.
Further, when the target display method is finally narrowed down to one display method, the display control unit 110 may automatically select the display method and display an image using the display method.

<Example 2>
In the present embodiment, after the target display method is selected by the method described in the first embodiment, the target display methods are rearranged according to the priority, and the process of presenting to the user is performed. Hereinafter, only portions that perform processing different from the first embodiment will be described, and descriptions of portions that perform similar processing to the first embodiment will be omitted.
FIG. 8 is a diagram for explaining the configuration of the display control unit 110 of the display device 100 according to the second embodiment. The present embodiment is different from the first embodiment in that the display control unit 110 includes a priority determination unit 800.
The selection unit A111 and the selection unit B112 select the target display method by the same method as in the first embodiment, and output the generated display method list to the priority determination unit 800.
The priority determination unit 800 determines the priority of each display method selected by the selection unit B112 based on the signal information acquired by the acquisition units 102a to 102d, and rearranges the display method list. The display method list is transmitted to the GUI generation unit 113. The priority of the display method is, for example, the order of importance of the sending device, the order of importance of the display method, the order of the number of video signals used, the order of the transmission capacity of the video signal, the order of the resolution of the video signal, and the video signal. Are set in the order of the frame rate. Moreover, the priority determination part 800 may determine the priority of a display method using several information. The transmission capacity of the video signal can be calculated based on the resolution and frame rate of the video signal.

When priorities are determined in the order of importance of sending devices, it is assumed that the importance of each sending device is determined in advance. In this case, the priority determination unit 800 gives a high priority to the display method of the video signal transmitted from the transmission device having the high importance, and the display method of the video signal transmitted from the transmission device having the low importance. Give low priority to it.
In addition, when priorities are determined in order of importance of display methods, it is assumed that importance is set in advance for each display method, and the priority determination unit 800 gives a high priority to display methods with high importance. Give low priority to display methods with low importance.
Further, when the priority is determined in descending order of the number of video signals to be used, for example, the priority determination unit 800 performs video signals 1 and 2 rather than single signal video display using the video signal 1 or the video signal 2. Gives high priority to multi-signal video display using.

The priority determination unit 800 may give a higher priority to a display method adapted to the input video signal. A specific example will be described with reference to FIGS. 9A and 9B.
FIG. 9A and FIG. 9B are diagrams illustrating the selected image after the display method is rearranged according to the priority. Terminals A to D indicate the input units 101a to 101d. 9A and 9B, it is assumed that the display device 100 can display a PbyP display only at 2K resolution.
When a 4K-resolution SDI signal is input, an image can be displayed as it is in a single-signal image display, but in order to display a PbyP image, the SDI signal needs to be reduced to 2K resolution. Therefore, the priority determination unit 800 gives a low priority to the PbyP display and gives a high priority to the single signal video display adapted to the video signal. In this case, as in the selected image of FIG. 9A, four single signal video display icons are displayed at the top of the list, and PbyP display icons are displayed at the bottom.

On the other hand, when a 2K resolution SDI signal is input, it can be displayed as it is as a PbyP video. Therefore, the priority determination unit 800 gives a high priority to the PbyP display and gives a low priority to the single signal video display. In this case, like the selected image in FIG. 9B, the PbyP display icon is displayed at the top of the list, and the four single signal video display icons are displayed at the bottom.
As shown in FIGS. 9A and 9B, the display control unit 800 rearranges the target display methods selected by the same method as in the first embodiment according to the priority, and then displays them on the screen as display method setting candidates. .

  FIG. 10 is a diagram illustrating an example of a processing flow of the selection unit B112 and the priority determination unit 800 in the display control unit 100 according to the second embodiment. Since the process of the selection unit B112 (steps S700 to S703) is the same process as in FIG. 7 of the first embodiment, the description thereof is omitted. The processes in steps S1000 to S1003 indicate the process of rearranging the display methods in order of priority.

In step S1000, the priority determination unit 800 rearranges the display method list in descending order of the number of video signals used. For example, when the single signal video display and the PbyP display are selected by the selection unit B112, the priority determination unit 800 uses the PbyP display because the number of video signals used is larger than the single signal video display. Increase display priority.
Further, when there are display methods having the same number of video signals to be used, the priority determination unit 800 may rearrange the display methods in the order of the numbers of the input unit 101. For example, when the selection unit B112 selects four single-signal video displays with one video signal to be used, the priority determination unit 800 includes the input unit 101a, the input unit 101b, the input unit 101c, and the input unit. The single signal video display is rearranged in the order of 101d.

In step S1001, the priority determination unit 800 determines whether or not the input video signal has 4K resolution. If the video signal has 4K resolution, the process proceeds to step S1002. If the video signal has 2K resolution, the priority determination unit 800 proceeds to step S1003. Migrate to In the display device 100 of this embodiment, it is assumed that PbyP video can be displayed only at 2K resolution. When the video signal is 4K resolution, the display control unit 110 converts the 4K resolution video signal into 2K resolution. It is assumed that PbyP video is displayed. In the present embodiment, it is assumed that either 4K resolution or 2K resolution video signals are input to the input units 101a to 101d.

In step S1002, the priority determination unit 800 rearranges the display method list so that the single signal video display is higher and the PbyP display is lower. This is because in order to perform PbyP display, the resolution of the input video signal must be reduced, and the quality (reproducibility) is lower than that of single signal video display. On the other hand, in step S1003, the priority determination unit 800 rearranges the display method list so that the PbyP display is higher and the single signal video display is lower.
As described above, by rearranging the display methods in order of priority, it becomes easier to select a useful display method with higher video reproducibility, and convenience is improved.

<Example 3>
In this embodiment, only a part of the video signals used in the multi-signal video display is input to the input unit 101, and the multi-signal video display is performed even when some of the necessary video signals are insufficient. Is different from that of the first embodiment. Hereinafter, an image displayed when a part of the video signals used in the multi-signal video display is insufficient is referred to as an incomplete multi-signal video.
Hereinafter, only portions that perform processing different from the first embodiment will be described, and descriptions of portions that perform similar processing to the first embodiment will be omitted.

FIG. 11 is a diagram for explaining the configuration of the display control unit 110 of the display device 100 according to the third embodiment. The present embodiment is different from the first embodiment in that the display control unit 110 includes a specifying unit 1100.
The selection unit A111 and the selection unit B112, when a part of video signals in a video signal used in the multi-signal video display is input, a multi-signal video display using a part of the video signal, Both single signal video displays using one video signal among the video signals are selected.

Hereinafter, the processing of the selection unit A111 and the selection unit B112 will be specifically described. The selection unit A111 determines that the display method can display the multi-signal video display even when some of the video signals used in the multi-signal video display are insufficient. For example, the selection unit A111 determines that the display method is capable of displaying a multi-signal video even when the video signal transmission standard is Quad Link and only three video signals are input.
Further, the selection unit B112 uses incomplete multiple signal video display and single signal video display using one video signal among video signals used in the incomplete multiple signal video as target display methods. Select. Therefore, when a multiple signal video in a complete state is selected, the single signal video display is excluded as described in the first embodiment, whereas when an incomplete multiple signal video is selected, a single signal video display is excluded. The signal video display will not be excluded. This is because the user may select the single signal video display when a part of the video signals used in the multi-signal video display is insufficient.

The identification unit 1100 identifies an insufficient video signal when only a part of the video signal used in the multi-signal video display is input to the input unit 101 and a part of the necessary video signal is insufficient. To do. For example, when the transmission standard of the video signals 1, 3, and 4 is Quad Link and the video signal 2 is a different transmission standard, the identifying unit 1100 identifies that the video signal 2 is an insufficient video signal.
When an incomplete multi-signal video is selected, the display control unit 110 includes a multi-signal video icon and a single-signal video icon using each video signal used in the incomplete multi-signal video. Displays the selected image. Further, the display control unit 110 displays the selected image so that the insufficient video signal can be determined.

12A and 12B are diagrams illustrating display examples of the selected image according to the present embodiment. FIG. 12A is an example of a selected image when all video signals used in the multi-signal video display (Quad Link) are input. FIG. 12B is an example of a selected image when the video signal B is insufficient. Terminals A to D indicate the input units 101a to 101d.
For example, when four video signals used in the multi-signal video display (Quad Link) are input to the input units 101a to 101d, the selection unit B112 selects the multi-signal video display as the target display method, Video display is not selected. In this case, in the selected image displayed on the screen, as shown in FIG. 12A, only the multi-signal video display icon is displayed, and the single-signal video display icon is not displayed.

On the other hand, each video signal used in the multi-signal video display (Quad Link) is input to the input units 101a, 101c, and 101d, another video signal is input to the input unit 101b, and one video signal is insufficient. Assume a state. In this case, the selection unit B112 selects multiple signal video display and single signal video display of each terminal as the target display method. In the selected image displayed on the screen, a multi-signal video display icon and a single-signal video display icon for each terminal are displayed as shown in FIG. 12B. Further, in the selected image, a mark indicating lack (for example, a x mark) is displayed in the “B” portion of the icon of the multi-signal video display. As a result, the user can easily identify the missing video signal.
Note that the display control unit 110 may display a portion corresponding to a video signal that is insufficient in a setting image by graying out, color-coding, shading, or the like. Further, the display control unit 110 may indicate an insufficient video signal such as “video signal B insufficient”.

  FIG. 13 is a diagram illustrating an example of a processing flow of the selection unit B112 and the specification unit 1100 in the display control unit 100 according to the third embodiment. Since the process of the selection unit B112 (steps S700 to S703) is the same process as in FIG. 7 of the first embodiment, the description thereof is omitted. Note that, in the processing of the selection unit A111, as described above, when an incomplete multiple signal video is input, multiple signal video display and single signal video display of each video signal are selected as display methods that can be displayed. Shall.

In step S1300, when the display method list includes multiple signal video display, the selection unit B112 determines whether the display is a complete multiple signal video display or an incomplete multiple signal video display. When all the video signals used in the multi-signal video display are input, the selection unit B112 proceeds to step S701 assuming that the multi-signal video display can be performed in a complete state. In step S701, the selection unit B112 excludes the single signal video display from the display method list.
On the other hand, when a part of the video signals used in the multi-signal video display is insufficient, the selection unit B112 proceeds to the process of step S1301 without excluding the single signal video display from the display method list. In step S1301, the specifying unit 1100 specifies a video signal that is insufficient, and adds a mark indicating the video signal that is insufficient to the selected image.

  As described above, in this embodiment, when the video signals used in the multi-signal video display are insufficient, the setting candidates for the multi-signal video and the setting candidates for the single signal video can be selected. Since both can be selected, it is possible to switch to single signal video display as necessary, so that convenience is improved. In addition, since information indicating the video signal that is insufficient is displayed on the selected image, the video signal that is insufficient by the user can be easily identified.

  Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. A part of the above-described embodiments may be appropriately combined.

Also, a software program that realizes the functions of the above-described embodiments is supplied from a storage medium directly to a system or apparatus having a computer that can execute the program using wired / wireless communication, and the program is executed and displayed. The present invention also includes the case of controlling the apparatus.
Accordingly, in order to realize the functional processing of the present invention in the apparatus, the program code itself supplied and installed in the apparatus also implements the present invention. That is, the program itself for realizing the functional processing of the present invention is also included in the present invention.
In this case, the program may be in any form as long as it has a program function, such as an object code, a program executed by an interpreter, or script data supplied to the OS.

  The storage medium for supplying the program may be, for example, a magnetic storage medium such as a hard disk or a magnetic tape, an optical / magneto-optical storage medium, or a nonvolatile semiconductor memory. As a program supply method, a method of storing a program forming the present invention in a server on a network, and a connected client computer downloading and executing the computer program can be considered.

  10: imaging device, 100: display device, 100a to 100d: input unit, 102a to 102d: acquisition unit, 104: display unit, 105: operation unit (instruction unit), 110: display control unit

Claims (14)

A display for displaying an image on the screen;
A plurality of input units for receiving image signal input from an external device;
An instruction unit for inputting user instructions;
A control unit for controlling the display unit based on the input image signal;
With
The controller is
A selection image for causing the user to select one of a plurality of target display methods determined based on additional information added to image signals input to the plurality of input units is displayed on the screen. To control the display unit,
A display device that controls the display unit to display an image based on the input image signal on the screen using a display method selected by a user using the instruction unit.   The control unit is configured to select the plurality of display methods based on the additional information added to the image signals input to the plurality of input units from among a plurality of display methods by which the control unit can control the display unit. The display device according to claim 1, wherein an object display method is selected.   The display device according to claim 1, wherein the additional information includes standard information related to a transmission standard used when the image signal is transmitted.   The display device according to claim 1, wherein the additional information includes information on resolution information or a frame rate of the image signal.   The control unit includes a display method using one image signal among the plurality of the same image signals when the plurality of the same image signals are included in the image signals input to the plurality of input units. 5. The display method according to claim 1, wherein the display method is selected as the target display method, and a display method using another image signal among the plurality of the same image signals is not selected as the target display method. The display device according to item. The additional information includes identification information of an external device that is a transmission source of the image signal, and type information of a transmission terminal of the external device that has output the image signal,
When the control information includes the identification information of the same external device in the signal information of the two image signals and the type information of the same type of transmission terminal, the two image signals are the same The display device according to claim 5, wherein the display device is determined to be an image signal.   The control unit is any one of a display method for generating one image using a plurality of image signals and a display method for generating one image using one image signal among the plurality of image signals. When it is possible to display an image on the screen by the display method, a display method for generating one image using the plurality of image signals is selected as the target display method, and among the plurality of image signals, The display device according to claim 1, wherein a display method that generates one image using one image signal is not selected as the target display method.   The control unit, when a part of image signals in an image signal used in a display method for generating one image using a plurality of image signals is input to the plurality of input units, A display method for generating one image using an image signal and a display method for generating one image using one image signal among the partial image signals are selected as the target display method. The display device according to claim 1, wherein the display device is a display device. The control unit has a shortage of image signals when a part of the image signals used in a display method for generating one image using a plurality of image signals is input to the plurality of input units. Identify
The display device according to claim 8, wherein the control unit displays information on the insufficient image signal on the screen.   The control unit further includes a display method for displaying each image based on the plurality of different image signals in parallel on the screen when the plurality of different image signals are included in the plurality of image signals. The display device according to any one of claims 1 to 9, wherein the display device is selected as a target display method.   11. The control unit according to claim 1, wherein the control unit controls the display unit to display the selected image superimposed on an image based on the image signal. 11. Display device.   The control unit controls the display unit to display the selected image in which the plurality of target display methods are arranged according to a predetermined priority on the screen. The display device according to any one of claims 11 to 11. A display device control method comprising: a display unit that displays an image on a screen; and a plurality of input units that receive input of image signals from an external device,
A selection image for causing the user to select one of a plurality of target display methods determined based on additional information added to the image signals input to the plurality of input units is displayed on the image. Controlling the display unit,
Controlling the display unit to display an image based on the input image signal on the screen using a display method selected by a user;
A control method for a display device, comprising:   A program for causing a computer to execute each step of the display device control method according to claim 13.

Images