Display device and display method

Abstract

To provide a display device and display method, which allow for displaying display content of a size suitable for a person actually viewing the display device.SOLUTION: A display device is provided, comprising a display unit, an image capturing unit for capturing a video image of the surroundings of the display unit, an analysis unit for analyzing the viewing situation of multiple persons based on the video image, and a setting unit for setting the size of display content to be displayed on the display unit on the basis of the viewing situation.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a display device and a display method. [Background technology]

[0002] Patent Document 1 discloses an information terminal device. In the information terminal device, the distance between the user and the information terminal device is measured. If the measured distance is far, the characters of the displayed program guide are made larger, and if the measured distance is close, the characters of the displayed program guide are made smaller (paragraphs 0014, 0022, and 0032 and FIG. 4). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-336439 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the information terminal device disclosed in Patent Document 1, even if a person close to the information terminal device is not actually looking at the information terminal device, if the distance between the person and the information terminal device is far, the characters in the displayed program guide are made larger, and if the distance is close, the characters in the displayed program guide are made smaller. Therefore, when a person other than the person actually looks at the information terminal device, the characters in the displayed program guide may be too large or too small.

[0005] The present disclosure has been made in view of this problem. An object of one aspect of the present disclosure is to provide a display device and a display method that are capable of displaying display content at a size suitable for a person who actually views the display device, for example. [Means for solving the problem]

[0006] A display device according to one embodiment of the present disclosure includes a display unit, an imaging unit that images the area around the display unit to obtain video, an analysis unit that analyzes the viewing status of a plurality of persons based on the video, and a setting unit that sets the size of the display content to be displayed on the display unit based on the viewing status.

[0007] A display method of another aspect of the present disclosure includes imaging the area around a display unit to obtain video, analyzing the viewing status of a plurality of persons based on the video, and setting the size of the display content to be displayed on the display unit based on the viewing status. [Brief description of the drawings]

[0008] [Figure 1] 1 is a block diagram of a display device according to a first embodiment. [Diagram 2] 4 is a diagram showing contents of the viewing situation analyzed by an analysis unit included in the display device of the first embodiment. FIG. [Diagram 3] FIG. 2 is a top view diagrammatically illustrating an example of a viewing environment in which the display device of the first embodiment is installed. [Figure 4] 4 is a flowchart showing the flow of processing performed by the display device of the first embodiment. [Diagram 5] 5 is a flowchart showing the flow of processing for setting the size of display contents, which is performed by a setting unit included in the display device of the first embodiment. [Figure 6] 5 is a flowchart showing a flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the first embodiment. [Figure 7] FIG. 2 is a diagram showing an example of a reduced-size electronic program guide displayed on the display device of the first embodiment. [Figure 8] FIG. 2 is a diagram showing an example of an enlarged size of an electronic program guide displayed on the display device of the first embodiment. [Figure 9] 13 is a diagram showing the contents of the viewing situation analyzed by an analysis section included in the display device of the second embodiment. FIG. [Figure 10]FIG. 11 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a second embodiment is installed. [Figure 11] FIG. 11 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a second embodiment is installed. [Figure 12] 13 is a flowchart showing a flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the second embodiment. [Figure 13] FIG. 11 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a third embodiment is installed. [Figure 14] FIG. 11 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a third embodiment is installed. [Figure 15] 13 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the third embodiment. [Figure 16] FIG. 13 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a fourth embodiment is installed. [Figure 17] FIG. 13 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a fifth embodiment is installed. [Figure 18] FIG. 13 is a diagram showing the contents of the viewing situation analyzed by an analysis section included in the display device of the fifth embodiment. [Figure 19] 13 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in a display device of a fifth embodiment. [Figure 20] FIG. 13 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a sixth embodiment is installed. [Figure 21] FIG. 13 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a sixth embodiment is installed. [Figure 22] 13 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the sixth embodiment. [Diagram 23] FIG. 23 is a diagram showing the contents of the viewing situation analyzed by an analysis section included in the display device of the seventh embodiment. [Figure 24]FIG. 13 is a top view diagrammatically illustrating an example of a viewing environment in which a display device according to a seventh embodiment is installed. [Diagram 25] 13 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the seventh embodiment. [Figure 26] FIG. 23 is a diagram showing the contents of the viewing situation analyzed by an analysis unit included in the display device of the eighth embodiment. [Figure 27] 13 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the eighth embodiment. [Figure 28] FIG. 13 is a diagram showing the contents of the viewing situation analyzed by an analysis unit included in the display device of the ninth embodiment. [Figure 29] 13 is a flowchart showing the flow of processing for setting the size of display contents, which is performed by a setting unit included in the display device of the ninth embodiment. [Diagram 30] 23 is a flowchart showing the flow of processing for setting the size of display contents, which is performed by a setting unit included in the display device of the tenth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and duplicated descriptions will be omitted.

[0010] 1. First embodiment 1.1 Display device FIG. 1 is a block diagram of a display device according to the first embodiment.

[0011] The display device 1 of the first embodiment shown in Fig. 1 is a television receiver. Therefore, the display device 1 receives broadcast waves, displays an image corresponding to the received broadcast waves, and outputs an audio corresponding to the received broadcast waves. The display device 1 may be a display device other than a television receiver. For example, the display device 1 may be a monitor for a personal computer (PC), a PC-integrated monitor, digital signage, etc.

[0012] As shown in FIG. 1, the display device 1 includes a remote controller 11 and a main body 12 .

[0013] An operation is performed on the remote controller 11. The remote controller 11 transmits an operation signal indicating the performed operation. The performed operations include an operation of turning on / off the power, an operation of selecting a type of broadcast, an operation of selecting a channel, an operation of adjusting the volume, an operation of calling up the display contents 31, and the like. The called up display contents 31 include an electronic program guide, subtitles, an on-screen display (OSD) screen, and the like. When an operation of calling up the display contents 31 is performed, the remote controller 11 transmits a call operation signal 32 indicating that the operation has been performed. The remote controller 11 includes an operation member, a light-emitting element, a circuit, and the like. The circuit passes a current corresponding to the operation performed on the operation member to the light-emitting element. The light-emitting element emits infrared light corresponding to the current passed therethrough. This causes the remote controller 11 to transmit an operation signal that is infrared light. The remote controller 11 may communicate with the main body 12 in accordance with standards such as Bluetooth (registered trademark) and WiFi (registered trademark). When the remote controller 11 communicates with the main body 12, the remote controller 11 includes a wireless transmission unit. The wireless transmission unit transmits an operation signal that is an electric wave.

[0014] The main unit 12 receives the transmitted operation signal and performs processing according to the received operation signal. As a result, the main unit 12 performs processing according to the operation performed on the remote controller 11. The processing to be performed includes processing for turning the power on / off, processing for selecting the type of broadcast, processing for selecting a channel, processing for adjusting the volume, processing for calling the display content 31, etc. When the main unit 12 receives the transmitted call operation signal 32, it performs processing for calling the display content 31.

[0015] As shown in FIG. 1, the main body 12 includes a display unit 21, an imaging unit 22, an analysis unit 23, a setting unit 24, a display image generation unit 25, and a receiving unit .

[0016] The display unit 21 displays a display image 33. The display unit 21 includes a liquid crystal display, an organic light emitting diode (OLED) display, or the like.

[0017] The imaging unit 22 captures an image of the periphery of the display unit 21 to obtain an image 34. The imaging unit 22 captures an image of the range in which the display unit 21 can be viewed. Therefore, the imaging unit 22 can obtain an image 34 in which a plurality of people 35 who can view the display unit 21 are shown. The imaging unit 22 includes a camera and the like.

[0018] The analysis unit 23 analyzes the viewing situation 36 of the multiple people 35 based on the acquired video 34. The analysis unit 23 analyzes the distance 37 from the display unit 21 to the multiple people 35 based on the acquired video 34. At that time, the analysis unit 23 recognizes the multiple people 35 and analyzes the viewing situation 36 and the distance 37.

[0019] The setting unit 24 sets a size 38 of the display content 31 based on the analyzed viewing situation 36 .

[0020] When setting the size 38 of the display content 31 based on the viewing situation 36, the setting unit 24 selects a target person 39 from the multiple people 35 based on the viewing situation 36, and sets the size 38 of the display content 31 based on the distance L from the display unit 21 to the target person 39. The size 38 of the display content 31 that is set is a size appropriate for the target person 39. The setting unit 24 reduces the size 38 of the display content 31 as the distance L becomes shorter, and increases the size 38 of the display content 31 as the distance L becomes longer. When the setting unit 24 reduces the size 38 of the display content 31, the amount of information to be included in the display content 31 may be increased, and when the setting unit 24 increases the size 38 of the display content 31, the amount of information to be included in the display content 31 may be decreased.

[0021] The main body 12 may include a detection unit that detects the distance 37 in addition to the imaging unit 22, and the setting unit 24 may set the size 38 based on the distance L acquired by the detection unit. The detection unit includes a distance sensor, a radar, or the like.

[0022] The receiving unit 26 receives the transmitted operation signal and inputs an instruction signal corresponding to the received operation signal to the display image generating unit 25. When the receiving unit 26 receives the call operation signal 32, the receiving unit 26 inputs a call instruction signal 40 to the display image generating unit 25. The receiving unit 26 includes a light receiving element, a circuit, and the like. The light receiving element receives the emitted infrared light and outputs a current corresponding to the received infrared light. The circuit outputs an electrical signal corresponding to the output current. As a result, the receiving unit 26 inputs the instruction signal, which is an electrical signal, to the display image generating unit 25. When the remote controller 11 communicates with the main unit 12 in accordance with standards such as Bluetooth (registered trademark) and WiFi (registered trademark), the main unit 12 includes a wireless receiving unit. The wireless receiving unit receives the operation signal, which is a radio wave, and inputs an instruction signal corresponding to the received operation signal to the display image generating unit 25.

[0023] The display image generating unit 25 causes the display unit 21 to display the display image 33 corresponding to the input image 41 or input information 42 that has been input. The display image generating unit 25 causes the display unit 21 to display the display image 33 corresponding to the input instruction signal. In this way, the display image generating unit 25 causes the display unit 21 to display the display image 33 corresponding to the operation performed on the remote controller 11. When a call instruction signal 40 is input, the display image generating unit 25 causes the display image 33 to include the display content 31.

[0024] The analysis unit 23, the setting unit 24, and the display image generation unit 25 include a microcontroller, peripheral circuits, etc. The microcontroller includes a processor, a memory, etc. The processor executes a control program stored in the memory to operate the microcontroller, peripheral circuits, etc. as the analysis unit 23, the setting unit 24, and the display image generation unit 25. All or part of the processing performed by the processor may be performed by a dedicated circuit.

[0025] 1.2 Contents of viewing situation FIG. 2 is a diagram showing the contents of the viewing situation analyzed by the analysis unit included in the display device of the first embodiment.

[0026] As shown in FIG. 2, the viewing situation 36 to be analyzed includes a situation 51 regarding whether or not a plurality of persons 35 are gazing at the display unit 21.

[0027] The analysis unit 23 determines that the person 35 is gazing at the display unit 21 when a condition is satisfied that the state in which the line of sight of the person 35 is directed toward the display unit 21 continues for a time period equal to or longer than a set time period. The analysis unit 23 may determine that the person 35 is gazing at the display unit 21 when a condition different from the condition is satisfied. The analysis unit 23 may determine whether or not the line of sight of the person 35 is directed toward the display unit 21, for example, based on the movement of the eyeballs of the person 35. The analysis unit 23 may determine that the line of sight of the person 35 is directed toward the display unit 21 when the face of the person 23 is directed toward the display unit 21. The analysis unit 23 may determine whether or not the person 35 is gazing at the display unit 21 based on the line of sight of the person 35 determined in this manner.

[0028] When setting size 38 of display content 31 based on viewing situation 36, setting unit 24 selects target person 39 from multiple people 35 based on situation 51 regarding whether multiple people 35 are gazing at display unit 21. At that time, setting unit 24 sets a person included in multiple people 35 who is gazing at display unit 21 as target person 39.

[0029] 1.3 Examples of viewing environments FIG. 3 is a top view that diagrammatically illustrates an example of a viewing environment in which the display device of the first embodiment is installed.

[0030] 3, a desk 61 is placed in front of the display device 1. The desk 61 is placed within a range where the imaging unit 22 captures an image.

[0031] As shown in FIG. 3, a first person 71 and a second person 72 are present around the desk 61. The first person 71 and the second person 72 are present within the range captured by the imaging unit 22. The line of sight 71a of the first person 71 is directed toward the display unit 21. The line of sight 72a of the second person 72 is directed toward the screen of the smartphone in hand. Therefore, the first person 71 is gazing at the display unit 21. The second person 72 is not gazing at the display unit 21.

[0032] 3, the setting unit 24 sets the first person 71 gazing at the display unit 21 as the target person 39, and does not set the second person 72 not gazing at the display unit 21 as the target person 39. The setting unit 24 sets the first person 71 gazing at the display unit 21 as the target person 39 in both cases where the distance L from the display unit 21 to the first person 71 is longer than the distance from the display unit 21 to the second person 72 and where the distance L is shorter than the distance from the display unit 21 to the second person 72. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 who is actually viewing the display device 1.

[0033] 1.4 Processing FIG. 4 is a flowchart showing the flow of processing performed by the display device of the first embodiment.

[0034] The display device 1 executes steps S101 to S103 shown in FIG.

[0035] In step S101, the imaging unit 22 captures an image of the periphery of the display unit 21 to obtain the video .

[0036] In the next step S102, the analysis unit 23 analyzes the viewing situations 36 of a plurality of people 35 based on the video 34.

[0037] In the next step S103, the setting unit 24 sets the size 38 of the display content 31 based on the viewing situation 36.

[0038] 1.5 Setting the size of the displayed content FIG. 5 is a flowchart showing the flow of processing for setting the size of the display contents, which is performed by the setting unit included in the display device of the first embodiment.

[0039] When setting the size 38 of the display content 31 in step S103, the setting unit 24 executes steps S111 and S112 shown in FIG.

[0040] In step S111, the setting unit 24 selects a target person 39 from the plurality of people 35 based on the viewing situation 36.

[0041] In the next step S112, the setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display unit 21 to the target person 39.

[0042] 1.6 Process flow for selecting target persons FIG. 6 is a flowchart showing the flow of processing for selecting a target person, which is performed by the setting unit included in the display device of the first embodiment.

[0043] When selecting the target person 39 in step S111, the setting unit 24 executes steps S121 to S125 shown in FIG.

[0044] In step S121, the setting unit 24 determines whether or not there is a person gazing at the display unit 21. If the setting unit 24 determines that the person is present, it executes step S122, and if it determines that the person is not present, it ends the process of selecting the target person 39.

[0045] In the next step S122, the setting unit 24 sets the person gazing at the display unit 21 as a candidate for the target person 39.

[0046] In the next step S123, the setting unit 24 determines whether or not two or more candidates exist. If the setting unit 24 determines that two or more candidates exist, it executes step S124, and if it determines that two or more candidates do not exist, it executes step S125.

[0047] In step S124, the setting unit 24 selects the target person 39 from two or more candidates. The setting unit 24 sets the candidate that is closest to the display unit 21, which is included in the two or more candidates, as the target person 39, for example.

[0048] In step S125, the setting unit 24 sets the candidate as the target person 39.

[0049] Through steps S121 to S125, if the person gazing at the display unit 21 is included in the multiple persons 35, the setting unit 24 sets the person as the target person 39.

[0050] Furthermore, when two or more persons are gazing at the display unit 21, the setting unit 24 selects the two or more persons gazing at the display unit 21 from the plurality of persons 35, and sets one person among the two or more selected persons as the target person 39.

[0051] Furthermore, when one person is gazing at the display unit 21, the setting unit 24 sets the one person as the target person 39.

[0052] Furthermore, if the person gazing at the display unit 21 is not included in the plurality of persons 35, the setting unit 24 does not select the target person 39.

[0053] 1.7 Changing the size of the electronic program guide Fig. 7 is a diagram showing an example of a state in which the size of the electronic program guide displayed on the display device of the first embodiment is reduced. Fig. 8 is a diagram showing an example of a state in which the size of the electronic program guide displayed on the display device of the first embodiment is increased.

[0054] The display content 31 includes an electronic program guide 81 shown in Figures 7 and 8. The electronic program guide 81 includes a number of columns 91 each showing information about programs broadcast by a number of broadcast stations.

[0055] Each of the multiple columns 91 includes multiple rows 92 each showing information about programs that are broadcast during multiple time slots.

[0056] Each of the multiple rows 92 has a character string 101 expressing information related to a program and a field 102 in which the character string 101 is placed.

[0057] When the distance L is short, the setting unit 24 reduces the size of the electronic program guide 81 by reducing the font size of the characters constituting the character string 101 as shown in Fig. 7, and when the distance L is long, the setting unit 24 increases the size of the electronic program guide 81 by increasing the font size of the characters as shown in Fig. 8. As a result, a person gazing at the display unit 21 from close to the display unit 21 will read characters having a small font size, and a person gazing at the display unit 21 from far away from the display unit 21 will read characters having a large font size. As a result, a person gazing at the display unit 21 can read characters having an appropriate font size.

[0058] When the distance L is short, the setting unit 24 reduces the size of the electronic program guide 81 by reducing the size of the column 102 as shown in FIG. 7, and when the distance L is long, the setting unit 24 increases the size of the electronic program guide 81 by increasing the size of the column 102 as shown in FIG. 8.

[0059] When the distance L is short, the setting unit 24 increases the amount of information to be included in the electronic program guide 81 by increasing the number of columns 91 and the number of rows 92 as shown in Fig. 7, and when the distance L is long, the setting unit 24 increases the amount of information to be included in the electronic program guide 81 by decreasing the number of columns 91 and the number of rows 92 as shown in Fig. 8. As a result, a person gazing at the display unit 21 from close to the display unit 21 will see an electronic program guide 81 that includes a lot of information, and a person gazing at the display unit 21 from far away from the display unit 21 will see an electronic program guide 81 that includes only a little information. As a result, a person gazing at the display unit 21 can see an electronic program guide 81 that includes an appropriate amount of information.

[0060] 2. Second embodiment The following describes the differences between the second embodiment and the first embodiment. For points that are not described, the second embodiment employs the same configuration as that employed in the first embodiment.

[0061] 2.1 Content of viewing situation FIG. 9 is a diagram showing the contents of the viewing situation analyzed by the analysis unit included in the display device of the second embodiment.

[0062] In the second embodiment, as shown in FIG. 9, the viewing situation 36 includes a situation 52 related to the movements of a plurality of people 35.

[0063] The analysis unit 23 analyzes the magnitude of the movement of the person 35 based on the motion vector of the image of the person 35. For example, if the person 35 is sitting and only swaying slightly, the analysis unit 23 determines that the person 35 is not moving.

[0064] When setting the size 38 of the display content 31 based on the viewing situation 36, the setting unit 24 selects a target person 39 from the multiple people 35 based on a situation 52 related to the movement of the multiple people 35. At that time, the setting unit 24 prioritizes a person with no movement as the target person 39 over a person with movement. Therefore, when the people gazing at the display unit 21 include a person with no movement and a person with movement, the setting unit 24 sets the person with no movement as the target person 39 and does not set the person with movement as the target person 39.

[0065] 2.2 Examples of viewing environments 10 and 11 are top views each showing a schematic example of a viewing environment in which the display device of the second embodiment is installed.

[0066] 10 and 11, first, as shown in FIG. 10, a first person 71 is present around a desk 61. The first person 71 is present within the range captured by the imaging unit 22. A line of sight 71a of the first person 71 is directed toward the display unit 21. Therefore, the first person 71 is gazing at the display unit 21. The first person 71 is not moving.

[0067] 11, a second person 72 approaches the periphery of the desk 61. The second person 72 enters the range captured by the imaging unit 22 from outside the range captured by the imaging unit 22. The line of sight 72a of the second person 72 is directed toward the display unit 21. Therefore, the second person 72 is gazing at the display unit 21. The second person 72 is moving.

[0068] In the second embodiment, in the viewing environment illustrated in FIG. 10 and FIG. 11, the setting unit 24 sets the first person 71 who is gazing at the display unit 21 and not moving as the target person 39, and after setting the first person 71 as the target person 39, does not set the second person 72 who is gazing at the display unit 21 but moving as the target person 39. In both cases where the distance L from the display unit 21 to the first person 71 is longer than the distance from the display unit 21 to the second person 72 and where the distance L is shorter than the distance from the display unit 21 to the second person 72, the setting unit 24 sets the first person 71 as the target person 39, and after setting the first person 71 as the target person 39, does not set the second person 72 as the target person 39. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 who is actually watching the display device 1 without moving.

[0069] 2.3 Process for selecting target persons FIG. 12 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the second embodiment.

[0070] In the second embodiment, when the setting unit 24 selects the target person 39 in step S111, steps S131 to S137 shown in FIG. 12 are executed.

[0071] In step S131, the setting unit 24 determines whether or not the target person 39 has already been selected. If the setting unit 24 determines that the target person 39 has already been selected, the setting unit 24 executes step S132, and if the setting unit 24 determines that the target person 39 has not yet been selected, the setting unit 24 executes step S137.

[0072] In step S132, the setting unit 24 determines whether or not the target person 39 is gazing at the display unit 21. If the setting unit 24 determines that the target person 39 is gazing at the display unit 21, it executes step S133, and if it determines that the target person 39 is not gazing at the display unit 21, it executes step S137.

[0073] In step S133, the setting unit 24 determines whether or not there is another person gazing at the display unit 21. If the setting unit 24 determines that the other person exists, it executes step S134, and if it determines that the other person does not exist, it executes step S136.

[0074] In step S134, the setting unit 24 judges whether or not the movement of the different person gazing at the display unit 21 is equal to or greater than the set movement. If the setting unit 24 judges that the movement is equal to or greater than the set movement, it executes step S136, and if the setting unit 24 judges that the movement is less than the set movement, it executes step S135.

[0075] In step S135, the setting unit 24 determines whether the time that has elapsed since the movement of another person gazing at the display unit 21 became less than the set movement is equal to or greater than the set time. If the setting unit 24 determines that the time is equal to or greater than the set time, it executes step S137, and if the setting unit 24 determines that the time is less than the set time, it executes step S136.

[0076] In step S136, the setting unit 24 maintains the state in which the target person 39 is selected, and does not set another person gazing at the display unit 21 as the target person 39.

[0077] 6, the setting unit 24 newly selects a target person 39. In this case, another person gazing at the display unit 21 can also be a candidate for the target person 39.

[0078] By steps S131 to S137, the setting unit 24 has already selected the target person 39, and when another person other than the target person 39, who is included in the multiple persons 35, is gazing at the display unit 21 but has a movement equal to or greater than the set movement, the setting unit 24 maintains the state in which the already selected target person 39 is selected.

[0079] Furthermore, even if the setting unit 24 has already selected a target person 39 and another person included in the plurality of people 35 other than the target person 39 is not gazing at the display unit 21, the setting unit 24 continues to select the already selected target person 39.

[0080] In addition, the setting unit 24 newly selects a target person 39 when the target person 39 has not yet been selected, when the target person 39 has stopped gazing at the display unit 21, and when the time that has elapsed since another person who was gazing at the display unit 21 and had movements equal to or greater than the set movements stopped having movements equal to or greater than the set movements reaches the set time.

[0081] 3. Third embodiment The following describes the differences between the third embodiment and the first embodiment. For points that are not described, the third embodiment employs the same configuration as that employed in the first embodiment.

[0082] 3.1 Example of viewing environment 13 and 14 are top views each showing a schematic example of a viewing environment in which the display device of the third embodiment is installed.

[0083] In the viewing environment illustrated in FIG. 13 and FIG. 14, first, as illustrated in FIG. 13, a first person 71 and a second person 72 are present around a desk 61. The first person 71 and the second person 72 are present within a range captured by the imaging unit 22. The line of sight 71a of the first person 71 is directed toward the display unit 21. The line of sight 72a of the second person 72 is directed toward the screen of the smartphone in hand. Therefore, the first person 71 is gazing at the display unit 21. The second person 72 is not gazing at the display unit 21.

[0084] 14, the line of sight 72a of the second person 72 is temporarily directed toward the display unit 21. Therefore, the second person 72 gazes at the display unit 21 temporarily.

[0085] 13, the line of sight 72a of the second person 72 is directed again toward the screen of the smartphone in hand. Therefore, the second person 72 no longer gazes at the display unit 21.

[0086] In the third embodiment, in the viewing environment illustrated in FIG. 13 and FIG. 14, the setting unit 24 sets the first person 71 gazing at the display unit 21 as the target person 39, and after setting the first person 71 as the target person 39, sets the first person 71 gazing continuously at the display unit 21 as the target person 39, and does not set the second person 72 gazing temporarily at the display unit 21 as the target person 39. In both cases where the distance L from the display unit 21 to the first person 71 is longer than the distance from the display unit 21 to the second person 72 and where the distance L is shorter than the distance from the display unit 21 to the second person 72, the setting unit 24 sets the first person 71 gazing continuously at the display unit 21 as the target person 39, and does not set the second person 72 gazing temporarily at the display unit 21 as the target person 39. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 gazing continuously at the display device 1. This makes it possible to prevent the size 38 of the display content 31 from frequently changing between a size set based on the distance L from the display unit 21 to the first person 71 and a size set based on the distance from the display unit 21 to the second person 72.

[0087] 3.2 Process for selecting target persons FIG. 15 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the third embodiment.

[0088] In the third embodiment, when the setting unit 24 selects the target person 39 in step S111, steps S141 to S146 shown in FIG. 15 are executed.

[0089] In step S141, the setting unit 24 determines whether or not the target person 39 has already been selected. If the setting unit 24 determines that the target person 39 has already been selected, the setting unit 24 executes step S142, and if the setting unit 24 determines that the target person 39 has not yet been selected, the setting unit 24 executes step S146.

[0090] In step S142, the setting unit 24 determines whether or not the target person 39 is gazing at the display unit 21. If the setting unit 24 determines that the target person 39 is gazing at the display unit 21, it executes step S143, and if it determines that the target person 39 is not gazing at the display unit 21, it executes step S146.

[0091] In step S143, the setting unit 24 determines whether or not there is another person gazing at the display unit 21. If the setting unit 24 determines that the other person exists, it executes step S144, and if it determines that the other person does not exist, it executes step S145.

[0092] In step S144, the setting unit 24 determines whether or not the time that has elapsed since the other person gazing at the display unit 21 began gazing at the display unit 21 is less than a first set time. If the setting unit 24 determines that the time is less than the first set time, it executes step S145, and if it determines that the time is equal to or greater than the first set time, it executes step S146.

[0093] In step S145, the setting unit 24 maintains the state in which the target person 39 is selected, and does not set another person gazing at the display unit 21 as the target person 39.

[0094] 6, the setting unit 24 selects the target person 39. In this case, another person gazing at the display unit 21 can also be a candidate for the target person 39.

[0095] Through steps S141 to S146, the setting unit 24 maintains the already selected state of the target person 39 if a person other than the target person 39 included in the plurality of persons 35 is gazing at the display unit 21 but the time that has elapsed since the other person began gazing at the display unit 21 does not reach the first set time, when the target person 39 has already been selected and another person is included in the plurality of persons 35 and is gazing at the display unit 21 but the time that has elapsed since the other person began gazing at the display unit 21 does not reach the first set time.

[0096] Furthermore, even if the setting unit 24 has already selected a target person 39 and another person included in the plurality of people 35 other than the target person 39 is not gazing at the display unit 21, the setting unit 24 continues to select the already selected target person 39.

[0097] In addition, the setting unit 24 newly selects a target person 39 when the target person 39 has not been selected yet, when the target person 39 is not gazing at the display unit 21, and when another person is gazing at the display unit 21 and the time that has elapsed since the other person began gazing at the display unit 21 reaches a first set time.

[0098] 4 Fourth embodiment The following describes the differences between the fourth embodiment and the first embodiment. For points that are not described, the fourth embodiment employs the same configuration as that employed in the first embodiment.

[0099] 4.1 Example of viewing environment FIG. 16 is a top view that diagrammatically illustrates an example of a viewing environment in which the display device of the fourth embodiment is installed.

[0100] In the viewing environment illustrated in FIG. 16, a first person 71, a second person 72, a third person 73, and a fourth person 74 are present around a desk 61. The first person 71, the second person 72, the third person 73, and the fourth person 74 are present within a range captured by the imaging unit 22. The line of sight 71a of the first person 71, the line of sight 72a of the second person 72, the line of sight 73a of the third person 73, and the line of sight 74a of the fourth person 74 are directed toward the display unit 21. Therefore, the first person 71, the second person 72, the third person 73, and the fourth person 74 are gazing at the display unit 21.

[0101] In the fourth embodiment, the setting unit 24 sets the first person 71, which is included in the first person 71, the second person 72, the third person 73, and the fourth person 74 gazing at the display unit 21, and which is the furthest from the display unit 21 as the target person 39 in the viewing environment illustrated in Fig. 16. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 who is actually viewing the display device 1 from the furthest. The reason why the first person 71, which is the furthest from the display unit 21, is set as the target person 39 is that it is more important to prevent the size of the display content 31 shown to a person viewing the display device 1 from a distance from being too small than to prevent the size of the display content 31 seen by a person viewing the display device 1 from nearby from being too large.

[0102] 4.2 Process for selecting target persons The above-mentioned FIG. 6 is also a flowchart showing the flow of processing for selecting a target person, which is performed by the setting section included in the display device of the fourth embodiment.

[0103] In the fourth embodiment, in step S124, the setting unit 24 sets the candidate farthest from the display unit 21, which is included in the two or more candidates, as the target person 39.

[0104] In steps S121 to S125, when two or more people are gazing at the display unit 21, the setting unit 24 selects the two or more people gazing at the display unit 21 from the multiple people 35, and sets the person farthest from the display unit 21 among the two or more selected people as the target person 39.

[0105] 5 Fifth embodiment The following describes the differences between the fifth embodiment and the first embodiment. For points that are not described, the fifth embodiment employs the same configuration as that employed in the first embodiment.

[0106] 5.1 Example of viewing environment FIG. 17 is a top view that illustrates a schematic example of a viewing environment in which the display device of the fifth embodiment is installed.

[0107] 17, a shelf 62 is installed to the front right of the display device 1, and a glass plate 63 is installed to the front left of the display device 1. There is an aisle 64 beyond the glass plate 63 as seen from the display device 1. The shelf 62, the glass plate 63, and the aisle 64 are within a range 111 captured by the imaging unit 22. The range 111 has a radial shape.

[0108] 17, a first person 71 is present around a desk 61. The first person 71 is present within a range 111 captured by the imaging unit 22. A line of sight 71a of the first person 71 is directed toward the display unit 21. A second person 72 is present in the passage 64. The second person 72 is present within a range 111 captured by the imaging unit 22.

[0109] In the fifth embodiment, a range 112 is set in the display device 1. The range 112 is set within the range 111 captured by the imaging unit 22. The range 112 is set so as not to include the shelf 62, the glass plate 63, and the passage 64. The range 112 is set so as not to include a range in which it is assumed that no person viewing the display device 1 is present. The range 112 may be set when the display device 1 is shipped, or may be set by a user after the display device 1 is shipped.

[0110] 5.2 Contents of viewing situation FIG. 18 is a diagram showing the contents of the viewing situation analyzed by the analysis unit included in the display device of the fifth embodiment.

[0111] In the fifth embodiment, as shown in FIG. 18, the viewing situation 36 includes a situation 53 regarding whether or not a plurality of people 35 are present within a set range 112.

[0112] When setting the size 38 of the display content 31 based on the viewing situation 36, the setting unit 24 selects a target person 39 from the multiple people 35 based on a situation 53 regarding whether the multiple people 35 are present within the set range 112. At that time, the setting unit 24 sets a person included in the multiple people 35 and present within the set range 112 as the target person 39. The setting unit 24 does not set a person included in the multiple people 35 and not present within the set range 112 as the target person 39. When the distance from the display unit 21 to the person is short, even if the person is gazing at the display unit 21, the setting unit 24 does not set the person as the target person 39.

[0113] By limiting the range 112 to be analyzed in this manner, the target person 39 can be selected without being influenced by objects that are easily misidentified, such as a shelf 62, or a second person 72 that is present in a range where it is unlikely that the person is viewing the display device 1.

[0114] 5.3 Target Person Selection Process FIG. 19 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the fifth embodiment.

[0115] In the fifth embodiment, when the setting unit 24 selects the target person 39 in step S111, steps S151 to S155 shown in FIG. 19 are executed.

[0116] In step S151, the setting unit 24 determines whether or not there is a person present within the set range 112 and gazing at the display unit 21. If the setting unit 24 determines that the person is present, it executes step S152, and if it determines that the person is not present, it ends the process of selecting the target person 39.

[0117] In the next step S152, the setting unit 24 sets the person who is present within the set range 112 and gazing at the display unit 21 as a candidate for the target person 39.

[0118] In the next step S153, the setting unit 24 determines whether or not two or more candidates exist. If the setting unit 24 determines that two or more candidates exist, it executes step S154, and if it determines that two or more candidates do not exist, it executes step S155.

[0119] In step S154, the setting unit 24 selects the target person 39 from two or more candidates. The setting unit 24 sets the candidate that is closest to the display unit 21, which is included in the two or more candidates, as the target person 39, for example.

[0120] In step S155, the setting unit 24 sets the candidate as the target person 39.

[0121] Through steps S151 to S155, if a person who is present within the set range 112 and gazing at the display unit 21 is included in the multiple persons 35, the setting unit 24 sets the person in question as the target person 39.

[0122] Furthermore, when two or more people are present within the set range 112 and are gazing at the display unit 21, the setting unit 24 selects the two or more people, and sets one person among the selected two or more people as the target person 39.

[0123] Furthermore, when a person is present within the set range 112 and is gazing at the display unit 21 , the setting unit 24 determines that person as the target person 39 .

[0124] Furthermore, if the person who is present within the set range 112 and gazing at the display unit 21 is not included in the plurality of persons 35, the setting unit 24 does not select the target person 39.

[0125] 6 Sixth embodiment The following describes the differences between the sixth embodiment and the first embodiment. For points that are not described, the sixth embodiment employs the same configuration as that employed in the first embodiment.

[0126] 6.1 Example of viewing environment 20 and 21 are top views each showing a schematic example of a viewing environment in which the display device of the sixth embodiment is installed.

[0127] 20 and 21, first, as shown in FIG. 20, a first person 71 and a second person 72 are around a desk 61. The first person 71 and the second person 72 are within an image capturing range of the imaging unit 22. A line of sight 71a of the first person 71 and a line of sight 72a of the second person 72 are directed toward the display unit 21. Therefore, the first person 71 and the second person 72 are gazing at the display unit 21.

[0128] 21, the line of sight 71a of the first person 71 is temporarily directed toward something other than the display unit 21. As a result, the first person 71 temporarily stops gazing at the display unit 21.

[0129] 20, the line of sight 71a of the first person 71 is directed toward the display unit 21 again. Therefore, the first person 71 gazes at the display unit 21 again.

[0130] In the sixth embodiment, in the viewing environment illustrated in Fig. 20 and Fig. 21, after the first person 71 is set as the target person 39, the setting unit 24 sets the first person 71 who is gazing at the display unit 21 almost continuously as the target person 39 even if the first person 71 temporarily stops gazing at the display unit 21, and does not set the second person 72 who is gazing at the display unit 21 as the target person 39. In both cases where the distance L from the display unit 21 to the first person 71 is longer than the distance from the display unit 21 to the second person 72 and where the distance L is shorter than the distance from the display unit 21 to the second person 72, after the first person 71 is set as the target person 39, the setting unit 24 sets the first person 71 who is gazing at the display unit 21 almost continuously as the target person 39, and does not set the second person 72 who is gazing at the display unit 21 as the target person 39. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 who is generally continuously looking at the display device 1. This makes it possible to prevent the size 38 of the display content 31 from frequently changing between a size that is set based on the distance L from the display unit 21 to the first person 71 and a size that is set based on the distance from the display unit 21 to the second person 72.

[0131] 6.2 Target Person Selection Process FIG. 22 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the sixth embodiment.

[0132] In the sixth embodiment, when the setting unit 24 selects the target person 39 in step S111, steps S161 to S165 shown in FIG. 22 are executed.

[0133] In step S161, the setting unit 24 determines whether or not the target person 39 has already been selected. If the setting unit 24 determines that the target person 39 has already been selected, the setting unit 24 executes step S162, and if the setting unit 24 determines that the target person 39 has not yet been selected, the setting unit 24 executes step S165.

[0134] In step S162, the setting unit 24 determines whether or not the target person 39 is gazing at the display unit 21. If the setting unit 24 determines that the target person 39 is gazing at the display unit 21, it executes step S164, and if it determines that the target person 39 is not gazing at the display unit 21, it executes step S163.

[0135] In step S163, the setting unit 24 determines whether or not the time that has elapsed since the target person 39 stopped gazing at the display unit 21 is less than the second set time. If the setting unit 24 determines that the time is less than the second set time, it executes step S164, and if it determines that the time is equal to or greater than the second set time, it executes step S165.

[0136] In step S165, the setting unit 24 maintains the state in which the target person 39 is selected, and does not set another person gazing at the display unit 21 as the target person 39.

[0137] In step S165, the setting unit 24 selects a target person 39, similarly to steps S121 to S125 shown in FIG.

[0138] By steps S161 to S165, if the target person 39 has already been selected and the target person 39 has stopped gazing at the display unit 21 but the time that has elapsed since the target person 39 stopped gazing at the display unit 21 does not reach the second set time, the setting unit 24 maintains the already selected state of the target person 39.

[0139] Furthermore, even if the target person 39 has already been selected and the target person 39 is gazing at the display unit 21, the setting unit 24 maintains the state in which the already selected target person 39 is selected.

[0140] In addition, the setting unit 24 newly selects the target person 39 when the target person 39 has not yet been selected and when the time that has elapsed since the target person 39 stopped gazing at the display unit 21 reaches a second set time.

[0141] 7 Seventh embodiment The following describes the differences between the seventh embodiment and the first embodiment. For points that are not described, the seventh embodiment also employs the same configuration as that employed in the first embodiment.

[0142] 7.1 Contents of viewing situation FIG. 23 is a diagram showing the contents of the viewing situation analyzed by the analysis unit included in the display device of the seventh embodiment.

[0143] In the seventh embodiment, as shown in FIG. 23, the viewing situation 36 includes a situation 54 regarding whether a plurality of persons 35 are operating the remote controller 11.

[0144] The analysis unit 23 detects the position of the remote controller 11 and performs motion detection on the remote controller 11 at the detected position, thereby determining whether or not multiple persons 35 are operating the remote controller 11. The position of the remote controller 11 is detected by detecting light emitted by the remote controller 11 with the imaging unit 22. When the remote controller 11 communicates with the main body 12 in accordance with the Bluetooth (registered trademark) standard, the position of the remote controller 11 may be detected by the communication. Motions detected by motion detection include the motion of holding the remote controller 11, the motion of pressing a button provided on the remote controller 11 with a finger, etc.

[0145] When setting the size 38 of the display content 31 based on the viewing situation 36, the setting unit 24 selects a target person 39 from the multiple people 35 based on a situation 54 regarding whether the multiple people 35 are operating the remote controller 11. At that time, the setting unit 24 sets a person included in the multiple people 35 who is operating the remote controller 11 as the target person 39. This allows the display device 1 to display the display content 31 at a size 38 suitable for a person who needs to actually view the display device 1 in order to operate the remote controller 11.

[0146] 7.2 Examples of viewing environments FIG. 24 is a top view that diagrammatically illustrates an example of a viewing environment in which the display device of the seventh embodiment is installed.

[0147] In the audio-visual environment shown in FIG. 24, the remote controller 11 is placed on a desk 61 .

[0148] As illustrated in FIG. 24, a first person 71 and a second person 72 are present around a desk 61. The first person 71 and the second person 72 are present within a range captured by the imaging unit 22. A line of sight 71a of the first person 71 and a line of sight 72a of the second person 72 are directed toward the display unit 21. Therefore, the first person 71 and the second person 72 are gazing at the display unit 21. The first person 71 is operating the remote controller 11.

[0149] In the viewing environment illustrated in Fig. 24, the setting unit 24 sets the first person 71 who is operating the remote controller 11 as the target person 39, and does not set the second person 72 who is not operating the remote controller 11 as the target person 39. In both cases where the distance L from the display unit 21 to the first person 71 is longer than the distance from the display unit 21 to the second person 72 and where the distance L is shorter than the distance from the display unit 21 to the second person 72, the setting unit 24 sets the first person 71 who is operating the remote controller 11 as the target person 39, and does not set the second person 72 who is not operating the remote controller 11 as the target person 39. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 who needs to actually look at the display device 1 to operate the remote controller 11.

[0150] 7.3 Target Person Selection Process FIG. 25 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the seventh embodiment.

[0151] When selecting the target person 39 in step S111, the setting unit 24 executes steps S171 and S172 shown in FIG.

[0152] In step S171, the setting unit 24 determines whether or not there is a person operating the remote controller 11. If the setting unit 24 determines that the person exists, it executes step S172, and if it determines that the person does not exist, it ends the process of selecting the target person 39.

[0153] In step S172, the setting unit 24 sets the person operating the remote controller 11 as the target person 39.

[0154] 8 Eighth embodiment The following describes the differences between the eighth embodiment and the seventh embodiment. For points that are not described, the eighth embodiment also employs the same configuration as that employed in the seventh embodiment.

[0155] 8.1 Content of viewing situation FIG. 26 is a diagram showing the contents of the viewing situation analyzed by the analysis unit included in the display device of the eighth embodiment.

[0156] In the eighth embodiment, as shown in FIG. 26, the viewing situation 36 includes a situation 55 regarding whether or not a plurality of persons 35 are performing voice operations on the remote controller 11.

[0157] The analysis unit 23 detects the position of the remote controller 11 and obtains measurement results of the localization of the voices emitted by multiple people 35, thereby determining whether multiple people 35 are performing voice operations on the remote controller 11.

[0158] When setting the size 38 of the display content 31 based on the viewing situation 36, the setting unit 24 selects a target person 39 from the multiple people 35 based on a situation 55 regarding whether the multiple people 35 are performing voice operations on the remote controller 11. At that time, the setting unit 24 sets a person included in the multiple people 35 who is performing voice operations on the remote controller 11 as the target person 39. This makes it possible to display the display content 31 at a size 38 suitable for a person who needs to actually see the display device 1 in order to perform voice operations on the remote controller 11.

[0159] 8.2 Examples of viewing environments FIG. 24 described above is also a top view that diagrammatically illustrates an example of a viewing environment in which the display device of the eighth embodiment is installed.

[0160] In the audio-visual environment shown in FIG. 24, a first person 71 is performing a voice operation on the remote controller 11.

[0161] In the viewing environment illustrated in Fig. 24, the setting unit 24 sets the first person 71 who is performing a voice operation on the remote controller 11 as the target person 39, and does not set the second person 72 who is not performing a voice operation on the remote controller 11 as the target person 39. In both cases where the distance L from the display unit 21 to the first person 71 is longer than the distance from the display unit 21 to the second person 72 and where the distance L is shorter than the distance from the display unit 21 to the second person 72, the setting unit 24 sets the first person 71 who is performing a voice operation on the remote controller 11 as the target person 39, and does not set the second person 72 who is not performing a voice operation on the remote controller 11 as the target person 39. This allows the display device 1 to display the display content 31 at a size 38 suitable for the first person 71 who needs to actually look at the display device 1 to perform a voice operation on the remote controller 11.

[0162] 8.3 Target Person Selection Process FIG. 27 is a flowchart showing the flow of processing for selecting a target person, which is performed by a setting unit included in the display device of the eighth embodiment.

[0163] When selecting the target person 39 in step S111, the setting unit 24 executes steps S181 and S182 shown in FIG.

[0164] In step S181, the setting unit 24 determines whether or not there is a person performing voice operation on the remote controller 11. If the setting unit 24 determines that the person exists, it executes step S182, and if the setting unit 24 determines that the person does not exist, it ends the process of selecting the target person 39.

[0165] In step S182, the setting unit 24 sets the person performing the voice operation on the remote controller 11 as the target person.

[0166] 8.4 Variations The display device of the eighth embodiment may be modified so that a person performing a voice operation on the main body 12 or a smartphone paired with the main body 12 is treated as the target person 39.

[0167] 9 Ninth embodiment The following describes the differences between the ninth embodiment and the first embodiment. For points that are not described, the ninth embodiment employs the same configuration as that employed in the first embodiment.

[0168] 9.1 Content of viewing situation FIG. 28 is a diagram showing the contents of the viewing situation analyzed by the analysis unit included in the display device of the ninth embodiment.

[0169] As shown in FIG. 28, the viewing status 36 includes a status 56 regarding whether the display device 1 is waiting for an operation.

[0170] The analysis unit 23 analyzes a situation 56 regarding whether the display device 1 is waiting for an operation based on the display video 33 etc. The situation in which the display device 1 is waiting for an operation is a situation in which the electronic program guide 81 is displayed on the display unit 21, a situation in which a screen that allows the user to select recorded content is displayed on the display unit 21, etc.

[0171] When setting the size 38 based on the viewing status 36, the setting unit 24 sets the size 38 of the display content 31 based on a status 56 regarding whether the display device 1 is waiting for an operation. At that time, when the display device 1 is waiting for an operation, the setting unit 24 sets the size 38 of the display content 31 based on a distance L from the display device 1 to the remote controller 11. The position of the remote controller 11 is detected by detecting light emitted by the remote controller 11 with the imaging unit 22. When the remote controller 11 communicates with the main body 12 in accordance with the Bluetooth (registered trademark) standard, the position of the remote controller 11 may be detected by the communication.

[0172] 9.2 Examples of viewing environments FIG. 24 described above is also a top view that diagrammatically illustrates an example of a viewing environment in which the display device of the ninth embodiment is installed.

[0173] In the ninth embodiment, the setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display unit 21 to the remote controller 11 in the viewing environment illustrated in Fig. 24. The setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display device 1 to the remote controller 11, both when there is a person gazing at the display unit 21 and when there is no person gazing at the display unit 21. This allows the display device 1 to display the display content 31 at a size 38 suitable for a person who needs to actually look at the display device 1 to operate the remote controller 11.

[0174] 9.3 Flow of process for setting size FIG. 29 is a flowchart showing the flow of processing for setting the size of display contents, which is performed by a setting unit included in the display device of the ninth embodiment.

[0175] In the ninth embodiment, the setting unit 24 executes steps S191 and S192 shown in FIG. 29 when setting the size 38 of the display content 31 in step S103.

[0176] In step S191, the setting unit 24 determines whether or not the display device 1 is waiting for an operation. If the setting unit 24 determines that the display device 1 is waiting for an operation, it executes step S192, and if it determines that the display device 1 is not waiting for an operation, it ends the process of setting the size 38 of the display content 31.

[0177] In step S192, the setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display unit 21 to the remote controller 11.

[0178] 10 Tenth embodiment The following describes the differences between the tenth embodiment and the eighth embodiment. For points that are not described, the tenth embodiment also employs the same configuration as that employed in the eighth embodiment.

[0179] FIG. 26 described above is also a diagram showing the contents of the viewing situation analyzed by the analysis section included in the display device of the tenth embodiment.

[0180] When setting the size 38 based on the viewing situation 36, the setting unit 24 sets the size 38 of the display content 31 based on the distance from the display unit 21 to the remote controller 11 that has acquired the voice operation. This makes it possible to display the display content 31 at a size 38 that is suitable for a person who needs to actually see the display device 1 in order to perform voice operation on the remote controller 11.

[0181] When the voice operation is acquired by a terminal other than the remote controller 11, for example, a smartphone paired with the main body 12, the setting unit 24 may set the size 38 based on the distance from the display unit 21 to the terminal that acquired the voice operation.

[0182] FIG. 24 described above is also a top view that diagrammatically illustrates an example of a viewing environment in which the display device of the tenth embodiment is installed.

[0183] In the tenth embodiment, the setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display unit 21 to the remote controller 11 in the viewing environment illustrated in Fig. 24. The setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display device 1 to the remote controller 11, both when there is a person gazing at the display unit 21 and when there is no person gazing at the display unit 21. This allows the display device 1 to display the display content 31 at a size 38 suitable for a person who needs to actually look at the display device 1 to operate the remote controller 11.

[0184] FIG. 30 is a flowchart showing the flow of processing for setting the size of the display contents, which is performed by a setting unit provided in the display device of the tenth embodiment.

[0185] The setting unit 24 executes steps S200 and S201 shown in FIG. 30 when setting the size 38 of the display content 31 in step S103.

[0186] In step S200, the setting unit 24 determines whether or not a voice operation is being performed on the remote controller 11. If the setting unit 24 determines that a voice operation is being performed on the remote controller 11, it executes step S202, and if it determines that a voice operation is not being performed on the remote controller 11, it ends the process of setting the size 38 of the display content 31.

[0187] In step S202, the setting unit 24 sets the size 38 of the display content 31 based on the distance L from the display unit 21 to the remote controller 11.

[0188] The present disclosure is not limited to the above-described embodiments, and may be replaced with a configuration that is substantially the same as the configuration shown in the above-described embodiments, a configuration that has the same action and effect, or a configuration that can achieve the same purpose. [Explanation of symbols]

[0189] 1 display device, 11 remote controller, 12 main body, 21 display unit, 22 imaging unit, 23 analysis unit, 24 setting unit, 25 display image generation unit, 26 receiving unit, 31 display content, 32 call operation signal, 33 display image, 34 image, 35 person, 36 viewing situation, 37 distance, 38 size, 39 target person, 40 call instruction signal, 41 input image, 42 input information, 51 situation regarding whether multiple people are gazing at the display unit, 52 situation regarding the movement of multiple people, 53 situation regarding whether multiple people are present within a set range, 54 situation regarding whether multiple people are operating the remote controller, 55 situation regarding whether multiple people are operating the remote controller by voice, 61 desk, 62 shelf, 63 glass plate, 71 first person, 72 second person, 73 third person, 74 fourth person, 71a First person's gaze, 72a Second person's gaze, 73a Third person's gaze, 74a Fourth person's gaze, 81 Electronic program guide, 91 Column, 92 Row, 101 Character string, 111 Range, 112 Range.

Claims

1. A display unit; an imaging unit that captures an image of the periphery of the display unit and acquires an image; an analysis unit that analyzes the viewing status of a plurality of persons based on the video; a setting unit that sets a size of the display content to be displayed on the display unit based on the viewing situation; A display device comprising:

2. Setting the size based on the viewing situation includes selecting a target person from the plurality of people based on the viewing situation, and setting the size based on a distance from the display unit to the target person. The display device according to claim 1 .

3. the viewing situation includes a situation regarding whether the plurality of persons are gazing at the display unit; Selecting the target person from the plurality of people based on the viewing situation includes determining a person who is gazing at the display unit, which is included in the plurality of people, as the target person. The display device according to claim 2 .

4. the viewing situation includes a situation regarding the movement of the plurality of people; The setting unit continues a state in which the target person is selected when another person, other than the target person included in the plurality of people, is gazing at the display unit but has a movement equal to or greater than a set movement. The display device according to claim 3 .

5. The setting unit continues a state in which the target person is selected when another person other than the target person included in the plurality of people is gazing at the display unit but the time that has elapsed since the other person started gazing at the display unit does not reach a first set time. The display device according to claim 3 or 4.

6. When the target person stops gazing at the display unit but the time that has elapsed since the target person stopped gazing at the display unit does not reach a second set time, the target person is continued in a selected state. The display device according to claim 3 or 4.

7. Selecting the target person from the plurality of people based on the viewing situation includes selecting two or more people from the plurality of people based on the viewing situation, and determining a person among the two or more people that is farthest from the display unit as the target person.

5. The display device according to claim 2.

8. the viewing situation includes a situation regarding whether the plurality of people are present within a set range; Selecting the target person from the plurality of people based on the viewing situation includes selecting a person present within the set range included in the plurality of people as the target person.

5. The display device according to claim 2.

9. Equipped with a remote controller for operation, the viewing situation includes a situation regarding whether the plurality of persons are performing the operation; Selecting the target person from the plurality of people based on the viewing situation includes selecting the person who is performing the operation and is included in the plurality of people as the target person.

5. The display device according to claim 2.

10. The viewing situation includes a situation regarding whether or not the plurality of persons are performing voice operations, Selecting the target person from the plurality of people based on the viewing situation includes selecting a person who is performing the voice operation and is included in the plurality of people as the target person.

5. The display device according to claim 2.

11. Equipped with a remote controller for operation, the viewing status includes a status regarding whether the display device is waiting for the operation; Setting the size based on the viewing situation includes setting the size based on a distance from the display device to the remote controller when the display device is waiting for the operation.

5. The display device according to claim 1.

12. The viewing situation includes a situation regarding whether or not the plurality of persons are performing voice operations, Setting the size based on the viewing situation includes setting the size based on a distance from the display device to a terminal that has acquired the voice operation.

5. The display device according to claim 1.

13. capturing an image of the periphery of the display unit; and Analyzing the viewing status of a plurality of persons based on the video; setting a size of the display content to be displayed on the display unit based on the viewing situation; A display method comprising:

Images