Information Processing Device, Operation Terminal, and Information Processing Method

Abstract

The information processing apparatus includes: a generator configured to generate control information for performing light emission control of a light-emitting unit provided in an operation terminal; and a transmitter configured to transmit the control information to the operation terminal.

Description

Technical Field

[0001] The present disclosure relates to an information processing apparatus operated by an operation terminal, the operation terminal, and an information processing method to be used in such an information processing apparatus. Background Art

[0002] An information processing apparatus is generally configured to be operable by an operation terminal such as a remote control device. For example, Patent Document 1 discloses a television receiver operable by a remote control device.

[0003] Citation List

[0004] Patent Document

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2014-110517. Summary of the Invention

[0006] Incidentally, it is desirable for an information processing apparatus to achieve high convenience for a user, and it is desirable to further improve the convenience.

[0007] There is provided an information processing apparatus, an operation terminal, and an information processing method that can improve the convenience for a user.

[0008] An information processing apparatus according to an embodiment of the present disclosure includes a generator and a transmitter. The generator is configured to generate control information for performing light emission control of a light-emitting unit provided in an operation terminal. The transmitter is configured to transmit the control information to the operation terminal.

[0009] An operation terminal according to an embodiment of the present disclosure includes an operation unit, a light-emitting unit, a receiver, and a controller. The operation unit is configured to accept an operation by a user. The light-emitting unit is configured to emit light from an operation surface of the operation unit. The receiver is configured to receive control information transmitted from the information processing apparatus. The controller is configured to perform light emission control of the light-emitting unit based on the control information.

[0010] An information processing method according to an embodiment of the present disclosure includes: generating, by an information processing apparatus, control information for performing light emission control of a light-emitting unit provided in an operation terminal; transmitting, by the information processing apparatus, the control information to the operation terminal; and performing, by the operation terminal, light emission control of the light-emitting unit based on the control information transmitted from the information processing apparatus.

[0011] In the information processing apparatus and the information processing method according to an embodiment of the present disclosure, control information for performing light emission control of a light-emitting unit provided in an operation terminal is generated, and the control information is transmitted to the operation terminal.

[0012] In an operation terminal and an information processing method according to an embodiment of the present disclosure, control information sent from an information processing device is received, and light emission control of a light emitting unit provided in the operation terminal is performed based on the control information. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a block diagram showing a configuration example of a display system according to a first embodiment of the present disclosure.

[0014] Figure 2 is an explanatory diagram showing a configuration example of an operation terminal according to an embodiment.

[0015] Figure 3 shows Figure 1 a flowchart of an operation example of the operation terminal shown.

[0016] Figure 4 shows Figure 1 an explanatory diagram of an operation example of the control unit 37 shown.

[0017] Figure 5 shows Figure 1 a sequence diagram of an operation example of the display system shown.

[0018] Figure 6A shows Figure 1 a timing diagram of operation examples of the control unit 37 and the light emitting unit 32 shown.

[0019] Figure 6B shows Figure 1 another timing diagram of operation examples of the control unit 37 and the light emitting unit 32 shown.

[0020] Figure 6C shows Figure 1 another timing diagram of operation examples of the control unit 37 and the light emitting unit 32 shown.

[0021] Figure 6D shows Figure 1 another timing diagram of operation examples of the control unit 37 and the light emitting unit 32 shown.

[0022] Figure 6E shows Figure 1 another timing diagram of operation examples of the control unit 37 and the light emitting unit 32 shown.

[0023] Figure 6F shows Figure 1 another timing diagram of operation examples of the control unit 37 and the light emitting unit 32 shown.

[0024] Figure 6G shows Figure 1Another timing diagram of the operation examples of the control unit 37 and the light-emitting unit 32 shown.

[0025] Figure 6H It shows Figure 1 Another timing diagram of the operation examples of the control unit 37 and the light-emitting unit 32 shown.

[0026] Figure 7 It is a flowchart showing the operation example of the operation terminal according to the modification example of the first embodiment.

[0027] Figure 8 It is a flowchart showing the operation example of the display device according to the modification example of the first embodiment.

[0028] Figure 9 It is a sequence diagram showing the operation example of the display system according to the modification example of the first embodiment.

[0029] Figure 10 It is a block diagram showing the configuration example of the display system according to another modification example of the first embodiment.

[0030] Figure 11 It is a block diagram showing the configuration example of the display system according to another modification example of the first embodiment.

[0031] Figure 12 It is an explanatory diagram showing the configuration example of the operation terminal according to another modification example of the first embodiment.

[0032] Figure 13 It is a block diagram showing the configuration example of the display system according to the second embodiment.

[0033] Figure 14 It shows Figure 13 The flowchart of the operation example of the display device shown.

[0034] Figure 15 It shows Figure 13 The sequence diagram of the operation example of the display system shown.

[0035] Figure 16 It is a block diagram showing the configuration example of the display system according to the third embodiment.

[0036] Figure 17 It shows Figure 16 The flowchart of the operation example of the display device shown.

[0037] Figure 18 It shows Figure 16 The sequence diagram of the operation example of the display system shown.

[0038] Figure 19It is a block diagram showing a configuration example of a display system according to a fourth embodiment.

[0039] Figure 20A It shows Figure 19 A flowchart showing an operation example of the display device shown.

[0040] Figure 20B It shows Figure 19 A flowchart showing an operation example of the display device shown.

[0041] Figure 21 It shows Figure 19 A sequence diagram showing an operation example of the display system shown.

[0042] Figure 22 It is a block diagram showing a configuration example of a display system according to a fifth embodiment.

[0043] Figure 23 It shows Figure 22 A flowchart showing an operation example of the display device shown.

[0044] Figure 24 It shows Figure 22 A sequence diagram showing an operation example of the display system shown.

[0045] Figure 25 It is a block diagram showing a configuration example of a display system according to a modified example of the fifth embodiment.

[0046] Figure 26 It shows Figure 25 A flowchart showing an operation example of the display device shown.

[0047] Figure 27 It is a block diagram showing a configuration example of a display system according to another modified example of the fifth embodiment.

[0048] Figure 28 It is a block diagram showing a configuration example of a display system according to a sixth embodiment.

[0049] Figure 29 It shows Figure 28 A flowchart showing an operation example of the display device shown.

[0050] Figure 30 It shows Figure 28 A sequence diagram showing an operation example of the display system shown. Detailed Description of the Invention

[0051] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the description is given in the following order.

[0052] 1. First Embodiment (Example of Light Emission Control Based on Ambient Brightness)

[0053] 2. Second Embodiment (Example of Controlling Light Emission Operation Based on Displayed Content)

[0054] 3. Third Embodiment (Example of Controlling Light Emission Operation Based on Color of Displayed Image)

[0055] 4. Fourth Embodiment (Example of Controlling Light Emission Operation Based on Notification Information to User)

[0056] 5. Fifth Embodiment (Example of Controlling Light Emission Operation Based on Selected Voice Assistant)

[0057] 6. Sixth Embodiment (Example of Controlling Light Emission Operation Based on External Device to be Used)

[0058] <1. First Embodiment>

[0059] [Configuration Example]

[0060] Figure 1 A configuration example of a display system 1 including an information processing device (display device 10) according to the first embodiment is shown. Note that since an information processing method according to an embodiment of the present disclosure is implemented by this embodiment, it will be described together. The display system 1 includes a display device 10 and an operation terminal 30.

[0061] (Display Device 10)

[0062] The display device 10 is a so-called television receiver and includes a tuner 11, an infrared receiver 12, a wireless communication unit 13, an external device interface 14, a network communication unit 15, a display unit 16, a speaker 17, an illuminance sensor 18, a power supply unit 19, and a control unit 21.

[0063] The tuner 11 is configured to select a desired video signal (stream) from digital broadcast waves received by the antenna 9.

[0064] The infrared receiver 12 is configured to receive an infrared signal that is sent from the operation terminal 30 and gives an instruction for the operation of the display device 10.

[0065] The wireless communication unit 13 is configured to exchange information with the operation terminal 30 by using short-range wireless communication. In this example, the wireless communication unit 13 communicates with the operation terminal 30 by using Bluetooth (registered trademark). Note that this is not limited thereto, and for example, Zigbee (registered trademark), wireless local area network (LAN), etc. can be used. The wireless communication unit 13 sends control information INF for controlling the light emission operation of the light emitting unit 32 in the operation terminal 30, as will be described.

[0066] The external device interface 14 is configured to communicate with an external device such as a hard disk recorder, for example. The external device interface 14 communicates with the external device by using, for example, HDMI (registered trademark).

[0067] The network communication unit 15 is coupled to the Internet NET and is configured to perform network communication with a communication partner via the Internet NET. For example, the network communication unit 15 can receive video information from the content server 201 of the moving image streaming service by streaming.

[0068] The display unit 16 is configured to display a video based on, for example, the video signal selected by the tuner 11. The display unit 16 is configured by using, for example, a liquid crystal display, an organic electroluminescence (EL) display, or the like.

[0069] The speaker 17 is configured to emit sound based on, for example, the video signal selected by the tuner 11.

[0070] The illuminance sensor 18 is configured to detect the brightness of the environment around the display device 10. The control unit 21 adjusts the display brightness in the display unit 16 based on the detection result of the illuminance sensor 18. Further, in the display system 1, the operation of the light emitting unit 32 in the operation terminal 30 is controlled based on the detection result of the illuminance sensor 18, as will be described later.

[0071] The power supply unit 19 is configured to generate various power supply voltages based on, for example, a power supply signal supplied from a commercial power supply and supply these power supply voltages to the blocks in the display device 10.

[0072] The control unit 21 is configured to control the operation of the display device 10 by controlling the operation of the blocks of the display device 10. The control unit 21 is configured by using, for example, a processor configured to execute a program. The control unit 21 includes a control information generator 22. The control information generator 22 is configured to generate control information INF for controlling the light emitting operation of the light emitting unit 32 in the operation terminal 30 based on the detection result of the illuminance sensor 18. Then, the control unit 21 transmits the control information INF generated by the control information generator 22 to the operation terminal 30 via the wireless communication unit 13.

[0073] (Operation terminal 30)

[0074] The operation terminal 30 is a so-called remote control terminal that controls the operation of the display device 10 by remote operation based on a user's operation. The operation terminal 30 includes an operation unit 31, a light emitting unit 32, an acceleration sensor 33, an infrared emitter 34, a wireless communication unit 35, a power supply unit 36, and a control unit 37.

[0075] The operation unit 31 is configured to receive operations from a user. The operation unit 31 includes a plurality of buttons B. The control unit 37 causes the infrared transmitter 34 to transmit an infrared signal based on the user's operations on the plurality of buttons B.

[0076] Figure 2 A configuration example of the operation terminal 30 is shown. The plurality of buttons B are provided on the operation surface S of the operation terminal 30. The plurality of buttons B include a power button B1, a moving image service selection button B2, numeric buttons B3, color buttons B4, a voice assistant call button B5, a setting button B6, an input selection button B7, cursor buttons B8, an OK button B9, a return button B10, channel buttons B11, volume buttons B12, a mute button B13, an audio selection button B14, a subtitle button B15, moving image content operation buttons B16, a recording list button B17, a help button B18, and a data broadcast button B19.

[0077] The power button B1 is operated when turning on or off the display device 10. The moving image service selection button B2 is operated when selecting a moving image stream service. In this example, the moving image service selection button B2 includes six buttons corresponding to six different moving image stream services (service S1 to service S6) from each other. The numeric buttons B3 are operated when selecting a channel that the user wants to view or inputting a number. In this example, the numeric buttons B3 include 12 buttons. The color buttons B4 are operated when performing a selection operation in, for example, data broadcast content or an electronic program guide. The voice assistant call button B5 is operated when calling a voice assistant. The setting button B6 is operated when displaying a setting screen for setting the display device 10. The input selection button B7 is operated when selecting a video source to be displayed from, for example, a tuner 11, an external device coupled to an external device interface 14, or the like. The cursor button B8 is operated when moving a cursor in, for example, data broadcast content or an electronic program guide. The determination button B9 is operated when performing a determination operation. For example, the return button B10 is operated when returning to the previous menu. The channel button B11 is operated when selecting a channel that the user wants to view. The volume button B12 is operated when adjusting the volume. The mute button B13 is operated when muting. For example, the audio selection button B14 is operated when selecting audio in an audio multiplexed broadcast content. Specifically, for example, the audio selection button B14 is operated when selecting English or Japanese in multilingual content, and the audio selection button B14 is operated when selecting main audio and sub-audio in content including main audio and sub-audio. The subtitle button B15 is operated when turning on or off subtitle display in subtitle content. The moving image content operation button B16 is operated when playing back moving image content. In this example, the moving image content operation button B16 includes a play button, a rewind button, a fast forward button, a previous button, a next button, a stop button, and a pause button. In the case where, for example, a recording and playback device is coupled to the external device interface 14, the recording list button B17 is operated when displaying a list of recorded content. The help button B18 is operated when displaying help information such as guidance on an operation method, for example. The data broadcast button B19 is selected when displaying a data broadcast in data broadcast content.

[0078] Therefore, the operation unit 31 includes a plurality of buttons B. These buttons B are configured to be highlighted by light emitted by a light-emitting unit 32 provided on the back of these buttons B. Specifically, for example, the buttons B can be made to be highlighted by configuring the buttons B using a translucent material and transmitting the light emitted from the light-emitting unit 32 through the buttons B. Note that this is not limited thereto. For example, the buttons B can be made to be highlighted by configuring the buttons B using an opaque material and allowing the light emitted from the light-emitting unit 32 to leak from the gaps around the buttons B.

[0079] The light-emitting unit 32 is configured to highlight a plurality of buttons B in the operation unit 31 by emitting light. The light-emitting unit 32 includes a plurality of light-emitting devices. For example, the light-emitting operations of the plurality of light-emitting devices can be controlled individually. The plurality of light-emitting devices are, for example, provided on the back sides of the plurality of buttons B. Specifically, the light-emitting unit 32 includes, for example, six light-emitting devices corresponding to the respective six buttons included in the moving image service selection button B2. Thus, the light-emitting unit 32 can individually highlight the six buttons by the six light-emitting devices that emit light individually. Further, for example, the light-emitting unit 32 includes one light-emitting device corresponding to the 12 buttons included in the numeric button B3. Thus, the light-emitting unit 32 can collectively highlight the 12 buttons by the light-emitting device emitting light.

[0080] The acceleration sensor 33 is configured to detect the movement of the operation terminal 30. Note that although the acceleration sensor 33 is provided in this example, the present disclosure is not limited thereto. The sensor can be any sensor capable of detecting the movement of the operation terminal 30. Specifically, for example, a gyro sensor can be provided.

[0081] The infrared transmitter 34 is configured to transmit an infrared signal giving an instruction for the operation of the display device 10 to the infrared receiver 12 of the operation terminal 30.

[0082] The wireless communication unit 35 is configured to exchange information with the wireless communication unit 13 of the display device 10 by using short-range wireless communication. The wireless communication unit 35 receives control information INF for controlling the light-emitting operation of the light-emitting unit 32 transmitted from the display device 10, as will be described later.

[0083] The power supply unit 36 is configured to supply, for example, a voltage supplied from a battery to blocks in the operation terminal 30. The battery that supplies power to the power supply unit 36 can be a rechargeable battery. The rechargeable battery can be charged, for example, by using a wireless power such as Qi (registered trademark).

[0084] The control unit 37 is configured to control the operation of the operation terminal 30 by controlling the operations of the blocks of the operation terminal 30. Further, the control unit 37 is capable of changing the operation state of the operation terminal 30 to a sleep state or a normal operation state by controlling the operations of the blocks of the operation terminal 30. For example, in the sleep state, the power supply unit 36 stops supplying voltage to various blocks other than the operation unit 31, the acceleration sensor 33, and the control unit 37. The control unit 37 is configured by using, for example, a processor configured to execute a program. The control unit 37 includes a light-emitting controller 38. The light-emitting controller 38 is configured to control the light-emitting operation of the light-emitting unit 32 based on the control information INF transmitted from the display device 10.

[0085] With this configuration, in the display system 1, the control information generator 22 of the display device 10 generates control information INF for controlling the light emission operation of the light emitting unit 32 in the operation terminal 30 based on the detection result of the illuminance sensor 18. Then, the wireless communication unit 13 of the display device 10 transmits the control information INF to the wireless communication unit 35 of the operation terminal 30. The light emission controller 38 of the operation terminal 30 controls the light emission operation of the light emitting unit 32 based on the control information INF. Therefore, in the display system 1, for example, when it is dark around the display device 10, the operation unit 31 can be highlighted by the light emitted from the light emitting unit 32. Thus, the user can easily operate the operation terminal 30.

[0086] In this example, the operation terminal 30 does not include a network communication unit that can be coupled to the Internet NET, and is configured to be able to send information to or receive information from an external device by using the infrared transmitter 34 or the wireless communication unit 35. Note that this is not limiting, and the operation terminal 30 may include a network communication unit that can be coupled to the Internet NET. In this case, the operation terminal 30 can use network communication and thus can implement various functions. In addition, the operation terminal can be implemented by using, for example, a smart phone or a tablet terminal.

[0087] Here, the display device 10 corresponds to a specific example of the "information processing device" according to the present disclosure. The control information generator 22 corresponds to a specific example of the "generator" according to the present disclosure. The control information INF corresponds to a specific example of the "control information" according to the present disclosure. The wireless communication unit 13 corresponds to a specific example of the "transmitter" according to the present disclosure. The illuminance sensor 18 corresponds to a specific example of the "environment sensor" according to the present disclosure. The operation terminal 30 corresponds to a specific example of the "operation terminal" according to the present disclosure. The operation unit 31 corresponds to a specific example of the "operation unit" according to the present disclosure. The light emitting unit 32 corresponds to a specific example of the "light emitting unit" according to the present disclosure. The wireless communication unit 35 corresponds to a specific example of the "receiver" according to the present disclosure. The light emission controller 38 corresponds to a specific example of the "controller" according to the present disclosure.

[0088] [Actions and effects]

[0089] Next, the actions and effects of the display system 1 according to the present embodiment will be described.

[0090] (Overview of overall actions)

[0091] First, reference will be made to Figure 1An overview of the overall operation of the display system 1 is described. In the display device 10, the tuner 11 selects a desired video signal from the broadcast waves received by the antenna 9. The infrared receiver 12 receives an infrared signal that is transmitted from the infrared transmitter 34 of the operation terminal 30 and gives an instruction for the operation of the display device 10. The wireless communication unit 13 exchanges information with the wireless communication unit 35 of the operation terminal 30 by using short-range wireless communication. The external device interface 14 communicates with external devices. The network communication unit 15 receives video information from a plurality of content servers 201 through a moving image stream. The display unit 16 displays a video based on, for example, the video signal selected by the tuner 11. The speaker 17 emits sound based on, for example, the video signal selected by the tuner 11. The illuminance sensor 18 detects the brightness of the environment around the display device 10. The power supply unit 19 generates various power supply voltages based on, for example, a power supply signal provided from a commercial power supply, and supplies these power supply voltages to the blocks in the display device 10. The control unit 21 controls the operation of the display device 10 by controlling the operation of the blocks in the display device 10.

[0092] In the operation terminal 30, a plurality of buttons B of the operation unit 31 receive user operations. The light emitting unit 32 emits light to highlight the plurality of buttons B in the operation unit 31. The acceleration sensor 33 detects the movement of the operation terminal 30. The infrared transmitter 34 transmits an infrared signal that gives an instruction for the operation of the display device 10 to the infrared receiver 12 of the operation terminal 30. The wireless communication unit 35 exchanges information with the wireless communication unit 13 of the display device 10 by using short-range wireless communication. The power supply unit 36 supplies a voltage provided from a battery, for example, to the blocks in the operation terminal 30. The control unit 37 controls the operation of the operation terminal 30 by controlling the operation of the blocks in the operation terminal 30.

[0093] The control information generator 22 of the display device 10 generates control information INF for controlling the light emitting operation of the light emitting unit 32 in the operation terminal 30 based on the detection result of the illuminance sensor 18. The wireless communication unit 13 transmits the control information INF generated by the control information generator 22 to the operation terminal 30. The wireless communication unit 35 of the operation terminal 30 receives the control information INF transmitted from the display device 10. The light emitting controller 38 controls the light emitting operation of the light emitting unit 32 based on the control information INF.

[0094] (Detailed operation)

[0095] Figure 3 An operation example of the operation terminal 30 is shown. When movement is detected, or when a user operation on the operation unit 31 is detected, the operation terminal 30 issues a transmission request for the control information INF to the display device 10. Then, the operation terminal 30 controls the light emitting operation of the light emitting unit 32 based on the control information INF transmitted from the display device 10. This operation is described in detail below.

[0096] First, the control unit 37 checks whether the movement of the operation terminal 30 has been detected based on the detection result of the acceleration sensor 33 (step S101). For example, when the user lifts the operation terminal 30 placed on the table, the control unit 37 detects the movement of the operation terminal 30.

[0097] If the movement of the operation terminal 30 is not detected in step S101 ("No" in step S101), the control unit 37 checks whether a user operation on the operation unit 31 has been detected (step S102). For example, when the user operates the button B of the operation terminal 30 placed on the table, the control unit 37 detects the user operation on the operation unit 31. If no user operation on the operation unit 31 is detected ("No" in step S102), the process returns to step S101, and the control unit 37 repeats steps S101 and S102 until the movement of the operation terminal 30 is detected or a user operation on the operation unit 31 is detected.

[0098] Here, the control unit 37 of the operation terminal 30 can control the acceleration sensor 33 to detect the movement of the operation terminal 30 at a predetermined interval. In addition, when the movement of the operation terminal 30 or a user operation on the operation unit 31 is detected, the control unit 37 can detect the movement of the operation terminal 30 at an interval different from the interval before the movement or user operation is detected. For example, as Figure 4 shown, the control unit 37 can generally detect the acceleration (movement of the operation terminal 30) at a detection interval T of 500 ms. In addition, when the control unit 37 detects the movement of the operation terminal 30 or a user operation on the operation unit 31, the control unit 37 can detect the acceleration at a detection interval T of 100 ms. Then, after the light emission controller 38 causes the light emitting unit 32 to emit light and ends the light emission, the detection interval T can return to 500 ms after a predetermined period (for example, 30 seconds). Therefore, for example, the delay before the light emitting unit 32 emits light after the user lifts the operation terminal 30 can be suppressed.

[0099] If the movement of the operation terminal 30 has been detected in step S101 ("Yes" in step S101), or if a user operation on the operation unit 31 has been detected in step S102 ("Yes" in step S102), the control unit 37 changes the action state of the operation terminal 30 from the sleep state to the normal action state (step S103).

[0100] Next, the control unit 37 issues a transmission request for the control information INF to the display device 10 via the wireless communication unit 35 (step S104). In this example, the control information INF includes the sensor information INF1 indicating the detection result of the illuminance sensor 18. Then, in response to the transmission request, the control unit 37 receives the control information INF transmitted from the display device 10 via the wireless communication unit 35.

[0101] Next, the light emission controller 38 of the control unit 37 checks whether the brightness of the environment indicated by the sensor information INF1 included in the control information INF is darker than a predetermined brightness (step S105). If the brightness of the environment is brighter than the predetermined brightness ("No" in step S105), the process ends. That is, when the brightness of the environment is brighter than the predetermined brightness, the user can easily visually recognize the button B of the operation unit 31 of the operation terminal 30. Therefore, the process ends without the light emission controller 38 causing the light emission unit 32 to emit light.

[0102] If the brightness of the environment indicated by the sensor information INF1 in step S105 is darker than the predetermined brightness ("Yes" in step S105), the light emission controller 38 generates light emission control information INFBL that gives instructions for the light emission operation of the light emission unit 32 based on the sensor information INF1 (step S106). The light emission control information INFBL includes information such as the light emission start, light emission end, light emission luminance, light emission time, and light emission cycle of each light emitting device of the light emission unit 32.

[0103] Then, the light emission controller 38 controls the light emission operation of the light emission unit 32 based on the light emission control information INFBL (step S107). Therefore, the operation unit 31 of the operation terminal 30 is highlighted by the light emitted from the light emission unit 32.

[0104] The process ends here.

[0105] Figure 5 An operation example of the display system 1 is shown when the user picks up the operation terminal 30 placed on the table in a dark environment.

[0106] When the user picks up the operation terminal 30, the control unit 37 of the operation terminal 30 detects the movement of the operation terminal 30 and changes the operation state of the operation terminal 30 from the sleep state to the normal operation state (step S121). Then, the control unit 37 issues a transmission request for the control information INF including the sensor information INF1 to the display device 10 via the wireless communication unit 35 (step S122). The control unit 21 of the display device 10 receives this transmission request via the wireless communication unit 13.

[0107] In response to the transmission request, the control information generator 22 of the display device 10 acquires the detection result of the illuminance sensor 18 as the sensor information INF1 (step S123). In this example, the sensor information INF1 includes information about the brightness of an environment darker than a predetermined brightness. Then, the control unit 21 transmits the control information INF including the sensor information INF1 to the operation terminal 30 via the wireless communication unit 13 (step S124). The control unit 37 of the operation terminal 30 receives the control information INF via the wireless communication unit 35.

[0108] The light emission controller 38 of the operation terminal 30 generates light emission control information INFBL based on the sensor information INF1 included in the control information INF (step S125). That is, in this example, since the brightness of the environment is darker than the predetermined brightness, the light emission controller 38 generates the light emission control information INFBL based on the sensor information INF1. In this example, the light emission control information INFBL is information that gives an instruction to cause all the light emitting devices in the light emitting unit 32 to emit light for a predetermined period of time.

[0109] Next, the light emission controller 38 causes the light emitting unit 32 to start emitting light based on the light emission control information INFBL (step S126). Accordingly, the operation unit 31 of the operation terminal 30 is highlighted by the light emitted from the light emitting unit 32. Then, the light emission controller 38 causes the light emitting unit 32 to end light emission after a predetermined period of time has elapsed based on the light emission control information INFBL (step S127).

[0110] This sequence ends here.

[0111] The light emission controller 38 can perform control to change the light emission method of the light emitting unit 32 at the start of light emission, the end of light emission, or both the start and end of light emission of the light emitting unit 32. For example, at the start and end of light emission, the light emitting unit 32 can gradually change the luminance from the current luminance to a target luminance and emit light at a constant luminance after reaching the target luminance. In addition, the length of the period during which the luminance gradually changes and the length of the period during which the constant luminance is maintained can be a predetermined period, or can be dynamically changed according to the usage state of the operation terminal 30. Figures 6A to 6H An example of the light emission method of the light emitting unit 32 is shown.

[0112] (Case C1, when the pressing time TP of the button B is short)

[0113] In Figure 6AIn the example, when the user operates the operation unit 31, the luminance of the light-emitting unit 32 gradually changes at the start and end of light emission. In this example, the user presses the button B. The time from the start to the end of light emission is set to 3 seconds, and the light emission time at the target luminance is set to 1 second. Specifically, the luminance of the light-emitting unit 32 gradually increases from the start of light emission, reaches the target luminance after 1 second, maintains a constant luminance for 1 second, and then gradually decreases to 0 (zero) after 1 second. For example, when the pressing time TP of the button B is short enough (e.g., 1 second or shorter), as described above, the light-emitting unit 32 emits light for 3 seconds from the start to the end of light emission (turns off).

[0114] (Case C2, the case where the pressing time TP of the button B is long)

[0115] In Figure 6B the example, similar to Figure 6A the case, the time from the start to the end of light emission is set to 3 seconds. In this case, the user presses the button B for a longer time than in Figure 6A the case. If the pressing time TP of the button B exceeds 1 second, while the user presses the button B, the luminance of the light-emitting unit 32 gradually increases to the target luminance within 1 second, and then remains at a constant luminance. Then, the luminance of the light-emitting unit 32 remains at a constant luminance until 1 second has passed after the user finishes pressing the button B. After 1 second has passed after the user finishes pressing the button B, the luminance of the light-emitting unit 32 gradually decreases to 0 (zero) after 1 second.

[0116] (Case C3, the case where the pressing time TP of the button B exceeds a predetermined period)

[0117] In Figure 6C the example shown, similar to Figure 6A the case, the time from the start to the end of light emission is set to 3 seconds. In this case, the user presses the button B for a longer time than in Figure 6B the case. When the pressing time TP of the button B exceeds 1 second and further exceeds a predetermined period (e.g., 60 seconds), while the user presses the button B, the luminance of the light-emitting unit 32 gradually increases to the target luminance within 1 second, and then remains at a constant luminance until the predetermined period (e.g., 60 seconds) has passed. After this predetermined period has passed, the luminance of the light-emitting unit 32 gradually decreases to 0 (zero) after 1 second.

[0118] (Case C4, the case where the button B is pressed during the process of ending light emission)

[0119] In Figure 6D the example, when the time from the start to the end of light emission is set to 3 seconds, as Figure 6AIn the case where the user presses button B again during the process of ending the light emission. In this case, the luminance of the light emitting unit 32 gradually increases from the luminance when the user presses button B again to the target luminance. The time from the timing of pressing button B until the luminance reaches the target luminance can be the same as the time from the start of the light emission end operation until button B is pressed. The luminance of the light emitting unit 32 is maintained for 1 second after reaching the target luminance again, and then gradually decreases to 0 (zero) after 1 second. This example describes the case where the user presses button B again during the process of ending the light emission. In the case where the user presses button B again while the light emitting unit 32 maintains the target luminance, the light emitting unit 32 can transfer to the light emission end operation after 1 second has elapsed from the timing when the user presses button B again.

[0120] (Case C5, the case where acceleration is detected while the luminance is increasing)

[0121] In the example of 6E, as Figure 6A In the case where the time from the start of the light emission to the end of the light emission is set to 3 seconds. In this example, when the light emission starts, the user performs a user operation by moving the operation terminal 30. Therefore, in the case where acceleration corresponding to the user operation is detected only during the period in which the luminance of the light emitting unit 32 increases (1 second in this example), the light emitting unit 32 emits light for 3 seconds from the start of the light emission to the end of the light emission (turns off), as Figure 6A In the case.

[0122] (Case C6, the case where acceleration is detected while maintaining the luminance)

[0123] In Figure 6F In the example where the time from the start of the light emission to the end of the light emission is set to 3 seconds, as Figure 6E In the case where, after 1 second has elapsed since the start of the light emission and during the period in which the light emitting unit 32 maintains the target luminance, acceleration corresponding to the user operation is further detected. In this case, 1 second after the timing when acceleration is detected during the period of maintaining the target luminance, the luminance of the light emitting unit 32 gradually decreases to 0 (zero) after 1 second.

[0124] (Case C7, the case where acceleration is detected during the process of ending the light emission)

[0125] In Figure 6G In the example where the time from the start of the light emission to the end of the light emission is set to 3 seconds, as Figure 6EIn the case where acceleration corresponding to a user operation is further detected during the process of ending the light emission. In this case, the luminance of the light-emitting unit 32 gradually increases from the luminance at the timing when acceleration is first detected during the process of ending the light emission to the target luminance. The time from the timing when acceleration is first detected to when the luminance reaches the target luminance may be the same as the time from the start of the light emission end operation to when acceleration is first detected.

[0126] (Case C8, the case where acceleration is detected after pressing button B)

[0127] In Figure 6H the example, when the time from the start of light emission to the end of light emission is set to 3 seconds, as in Figure 6A the case, the light-emitting unit 32 performs light emission corresponding to the detection of acceleration after the light emission corresponding to the pressing of button B. Here, as in Figure 6C the example, the user first presses button B for a predetermined period (e.g., 60 seconds). Therefore, the light-emitting unit 32 performs a light emission process corresponding to the pressing of button B for a total of 61 seconds, and then sets the luminance to 0. Thereafter, when acceleration caused by the user moving the operation terminal 30 is detected, the light-emitting unit 32 performs a light emission process again. Note that, as Figure 4 shown, in some embodiments, the detection interval T of the acceleration sensor 33 is shorter than normal until a predetermined period (e.g., 30 seconds) has elapsed since the pressing of button B or the detection of acceleration. Therefore, in the case where light emission corresponding to the detection of acceleration is performed within a predetermined period from the light emission corresponding to the pressing of button B, the response time until the light-emitting unit 32 emits light after the user moves the operation terminal 30 is shorter.

[0128] Although examples of light emission control in cases C1 to C8 have been described by using Figures 6A to 6H the above light emission control is an example, and the present disclosure is not limited to these examples. For example, in the example of case C1, the time from the start of light emission to the change to the target luminance, the time of maintaining the target luminance, and the time taken to end the light emission are 1 second each. Not limited to this, for example, it may be shorter than 1 second, or may be longer than 1 second. Further, the luminance of the light-emitting unit 32 is gradually changed both at the start and end of light emission, but not limited to this. For example, the luminance of the light-emitting unit 32 may be gradually changed only at either the start or the end of light emission. Further, for example, the luminance of the light-emitting unit 32 may not be gradually changed both at the start and end of light emission. In this case, the luminance of the light-emitting unit 32 becomes the target luminance (constant luminance state or luminance 0 state) in a short time. Further, only when the pressing of button B or the detection of acceleration is detected during the process of ending the light emission, the luminance of the light-emitting unit 32 may be made to become the target luminance in a short time instead of gradually changing.

[0129] As described above, in the display system 1, the control information generator 22 of the display device 10 uses the illuminance sensor 18 to adjust the display luminance of the display unit 16 to generate control information INF corresponding to the detection result of the illuminance sensor 18. The light emission controller 38 of the operation terminal 30 controls the light emission operation of the light emitting unit 32 based on the control information INF. Therefore, in the display system 1, for example, when it is dark around the display device 10, the operation unit 31 can be highlighted by the light from the light emitting unit 32, which enables the user to easily operate the operation terminal 30. Therefore, the display system 1 can improve the convenience for the user.

[0130] In addition, in the display system 1, when the brightness of the environment is darker than a predetermined brightness, the light emission operation of the light emitting unit 32 is controlled. Therefore, the light emitting unit 32 does not have to emit light when it is bright around the display device 10, which enables power consumption to be reduced. Therefore, in the display system 1, for example, the number of times of replacing the battery used in the operation terminal 30 and the number of times of charging the battery can be reduced. This enables the convenience for the user to be improved.

[0131] In addition, in the display system 1, the light emission operation of the light emitting unit 32 is controlled based on the control information INF. Therefore, for example, after a predetermined period of time has elapsed since the light emitting unit 32 starts to emit light, the light emitting unit 32 can be made to stop emitting light. This enables the light emission time of the light emitting unit 32 to be restricted, which enables power consumption to be reduced. Therefore, in the display system 1, for example, the number of times of replacing the battery used in the operation terminal 30 and the number of times of charging the battery can be reduced. This enables the convenience for the user to be improved.

[0132] In addition, the display system 1 uses the illuminance sensor 18 provided in the display device 10 to adjust the display luminance of the display unit 16. Therefore, it is not necessary to provide an illuminance sensor in the operation terminal 30, which enables the number of components of the operation terminal 30 to be reduced. Therefore, in the display system 1, for example, the cost of the operation terminal 30 can be reduced.

[0133] [Effect]

[0134] As described above, in the present embodiment, the control information generator of the display device generates control information corresponding to the detection result of the illuminance sensor. The light emission controller of the operation terminal controls the light emission operation of the light emitting unit based on the control information. Therefore, for example, when it is dark around the display device, the operation unit can be highlighted by the light from the light emitting unit, which enables the convenience for the user to be improved.

[0135] In this embodiment, when the brightness of the environment is darker than a predetermined brightness, the light emission operation of the light emitting unit is controlled. This makes it possible to reduce, for example, the number of times of replacing the battery used in the operation terminal and the number of times of charging the battery. This makes it possible to improve the convenience for the user.

[0136] In this embodiment, the light emission operation of the light emitting unit is controlled based on control information. Therefore, for example, after a predetermined period of time has elapsed since the start of light emission of the light emitting unit, the light emission of the light emitting unit can be ended. This makes it possible to reduce, for example, the number of times of replacing the battery used in the operation terminal and the number of times of charging the battery. This makes it possible to improve the convenience for the user.

[0137] In this embodiment, an illuminance sensor provided in the display device is used to adjust the display luminance of the display unit. This makes it possible to reduce the cost of the operation terminal.

[0138] [Modification Example 1-1]

[0139] In the above embodiment, the control information INF includes the sensor information INF1. Not limited thereto, the control information INF may include various information for controlling the light emission operation of the light emitting unit 32 in the operation terminal 30. The following is a detailed description of an example of the light emission control information INFBL that includes an instruction for the light emission operation of the light emitting unit 32.

[0140] Similar to the case of the above embodiment ( Figure 1 ), the display system 1A according to this modification example includes a display device 10A and an operation terminal 30A. The display device 10A includes a control unit 21A. The control unit 21A includes a control information generator 22A. The control information generator 22A is configured to generate control information INF including light emission control information INFBL based on the detection result of the illuminance sensor 18. The operation terminal 30A includes a control unit 37A. The control unit 37A includes a light emission controller 38A. The light emission controller 38A is configured to control the light emission operation of the light emitting unit 32 based on the control information INF including the light emission control information INFBL.

[0141] Figure 7 An operation example of the operation terminal 30A is shown.

[0142] First, the control unit 37A checks whether the movement of the operation terminal 30A has been detected based on the detection result of the acceleration sensor 33 (step S101). If the movement of the operation terminal 30A has not been detected (\"No\" in step S101), the control unit 37A checks whether a user operation on the operation unit 31 has been detected (step S102). If a user operation on the operation unit 31 has not been detected (\"No\" in step S102), the process returns to step S101.

[0143] If the movement of the operation terminal 30A has been detected in step S101 ("Yes" in step S101), or if a user operation on the operation unit 31 has been detected in step S102 ("Yes" in step S102), the control unit 37A changes the operation state of the operation terminal 30A from the sleep state to the normal operation state (step S103).

[0144] Next, the control unit 37A issues a transmission request for the control information INF to the display device 10A via the wireless communication unit 35 (step S134). In this example, the control information INF includes the light emission control information INFBL that gives an instruction for the light emission operation of the light emission unit 32. Then, in response to the transmission request, the control unit 37A receives the control information INF transmitted from the display device 10A via the wireless communication unit 35.

[0145] Next, the light emission controller 38A of the control unit 37A controls the light emission operation of the light emission unit 32 based on the light emission control information INFBL included in the control information INF (step S137). Accordingly, the operation unit 31 of the operation terminal 30A is highlighted by the light emitted from the light emission unit 32. This process ends here.

[0146] Figure 8 An operation example of the display device 10A is shown.

[0147] First, the display device 10A checks whether a transmission request for the control information INF including the light emission control information INFBL has been received from the operation terminal 30A (step S141). If the transmission request for the control information INF has been received ("Yes" in step S141), the control information generator 22A of the control unit 21A acquires the detection result of the illuminance sensor 18 as the sensor information INF1 (step S142).

[0148] Next, the control information generator 22A checks whether the brightness of the environment indicated by the sensor information INF1 is darker than a predetermined brightness (step S143). If the brightness of the environment is darker than the predetermined brightness ("Yes" in step S143), the control information generator 22A generates the light emission control information INFBL including an instruction to make the light emission unit 32 emit light based on the sensor information INF1 (step S144). Further, if the brightness of the environment is brighter than the predetermined brightness ("No" in step S143), the control information generator 22A generates the light emission control information INFBL including an instruction not to make the light emission unit 32 emit light based on the sensor information INF1 (step S145).

[0149] Then, the control unit 21A transmits control information INF including the light emission control information INFBL to the operation terminal 30A via the wireless communication unit 13 (step S146). This process ends here.

[0150] Figure 9 An operation example of the display system 1A is shown when a user operates the operation unit 31 of the operation terminal 30A placed on a table in a dark environment.

[0151] When the user operates the operation unit 31 of the operation terminal 30A, the control unit 37A of the operation terminal 30A detects the user operation and changes the operation state of the operation terminal 30A from the sleep state to the normal operation state (step S151). Then, the control unit 37A issues a transmission request for the control information INF including the light emission control information INFBL to the display device 10A via the wireless communication unit 35 (step S152). The wireless communication unit 13 of the display device 10A receives this transmission request.

[0152] In response to the transmission request, the control information generator 22A of the display device 10A acquires the detection result of the illuminance sensor 18 as the sensor information INF1 (step S153). In this example, the sensor information INF1 includes information about the brightness of an environment darker than a predetermined brightness. Then, the control information generator 22A generates the light emission control information INFBL based on the sensor information INF1 (step S154). In this example, since the brightness of the environment is darker than the predetermined brightness, the control information generator 22A generates the light emission control information INFBL that gives an instruction to cause all the light emitting devices in the light emitting unit 32 to emit light for a predetermined period based on the sensor information INF1. Then, the control unit 21A transmits the control information INF including the light emission control information INFBL to the operation terminal 30A via the wireless communication unit 13 (step S155). The control unit 37A of the operation terminal 30A receives the control information INF via the wireless communication unit 35.

[0153] Next, the light emission controller 38A of the operation terminal 30A causes the light emitting unit 32 to start emitting light based on the light emission control information INFBL included in the control information INF (step S126). Accordingly, the operation unit 31 of the operation terminal 30A is highlighted by the light emitted from the light emitting unit 32. Then, the light emission controller 38A causes the light emitting unit 32 to end light emission after a predetermined period based on the light emission control information INFBL (step S127). This sequence ends here.

[0154] [Modification Example 1-2]

[0155] In the above-described embodiment, when the brightness of the environment indicated by the sensor information INF1 is darker than a predetermined brightness, the light emission controller 38 generates light emission control information INFBL that gives an instruction to cause all the light emitting devices in the light emitting unit 32 to emit light, but is not limited thereto. Alternatively, for example, the light emission controller 38 may generate light emission control information INFBL that gives an instruction to cause all the light emitting devices in the light emitting unit 32 to emit light with a higher light emission luminance as the brightness of the environment indicated by the sensor information INF1 is darker.

[0156] [Modification Example 1-3]

[0157] In the above-described embodiment, the control information generator 22 generates control information INF based on the brightness of the environment detected by the illuminance sensor 18, but is not limited thereto. The control information generator may also generate control information INF based on other parameters regarding the environment. The following is a detailed description of this modification example with reference to some examples.

[0158] Figure 10 A configuration example of a display system 1B according to this modification example is shown. The display system 1B includes a display device 10B and an operation terminal 30B.

[0159] The display device 10B includes a color sensor 18B and a control unit 21B.

[0160] The color sensor 18B is configured to detect the color of the environment around the display device 10. Specifically, the color sensor 18B can detect, for example, the color of the illumination in the room where the display device 10B is installed. The control unit 21B adjusts the display color on the display unit 16 based on the detection result of the color sensor 18B. Here, the illuminance sensor 18 and the color sensor 18B correspond to specific examples of the "environment sensor" according to the present disclosure.

[0161] The control unit 21B includes a control information generator 22B. The control information generator 22B is configured to generate control information INF based on the detection result of the illuminance sensor 18 and the detection result of the color sensor 18B. That is, the control information generator 22B generates control information INF based on the brightness of the environment and the color of the environment.

[0162] The operation terminal 30B includes a light emitting unit 32B and a control unit 37B.

[0163] The light emitting unit 32B is configured to highlight a plurality of buttons B in the operation unit 31 by emitting light. The light emitting unit 32B includes, for example, a plurality of light emitting devices. The plurality of light emitting devices include, for example, a light emitting device that emits red light, a light emitting device that emits green light, and a light emitting device that emits blue light.

[0164] The control unit 37B includes a light emission controller 38B. The light emission controller 38B is configured to control the light emission operation of the light emitting unit 32B based on the control information INF sent from the display device 10B. Specifically, for example, when the color of the illumination in the room where the display device 10B is set is natural white, the light emission controller 38B generates instruction light emission control information INFBL that gives an instruction to cause the light emitting device to emit light so that the light emitting unit 32B emits white light. In addition, for example, when the color of the illumination in the room where the display device 10B is set is warm white, the light emission controller 38B generates light emission control information INFBL that gives an instruction to cause the light emitting device to emit light so that the light emitting unit 32B emits warm color light. That is, in this example, the light emission control information INFBL also includes information about the light emission color of the light emitting unit 32B.

[0165] This configuration enables the display system 1B to control the light emission operation of the light emitting unit 32B based on the information about the brightness of the environment obtained by the illuminance sensor 18 and the information about the color of the environment obtained by the color sensor 18B.

[0166] Figure 11 A configuration example of another display system 1C according to this modification example is shown. The display system 1C includes a display device 10C and an operation terminal 30B. The display device 10C includes a camera 18C and a control unit 21C.

[0167] The camera 18C is configured to generate a captured image by imaging a user in front of the display device 10C. The display device 10C can use the captured image to implement functions such as a video phone. The captured image includes information about the brightness of the environment and the color of the environment. Here, the camera 18C corresponds to a specific example of the "environment sensor" according to the present disclosure.

[0168] The control unit 21C includes a control information generator 22C. The control information generator 22C is configured to generate control information INF based on the captured image obtained by the camera 18C. That is, the control information generator 22B related to the display device 10B ( Figure 10 ) generates control information INF based on the information about the brightness of the environment obtained by the illuminance sensor 18 and the information about the color of the environment obtained by the color sensor 18B. In contrast, the control information generator 22C generates control information INF based on the information about the brightness of the environment and the color of the environment obtained by the camera 18C.

[0169] This configuration enables the display system 1C to control the light emission operation of the light emitting unit 32B based on the information about the brightness of the environment and the color of the environment obtained by the camera 18C.

[0170] [Modification Example 1-4]

[0171] In the above-described embodiment, as Figure 2 shown, the operation terminal 30 includes a plurality of buttons B, but is not limited thereto. Optionally, for example, in addition to the plurality of buttons B, a display unit 39D may also be included, as in the operation terminal 30D Figure 12 shown. The display unit 39D is configured by using, for example, a liquid crystal display, an organic EL display, or the like. In this case, the light-emitting unit 32 can emit light to highlight the plurality of buttons B, as in the case of the above-described embodiment. The light-emitting controller 38D according to this modification example can control the light-emitting operation of the light-emitting unit 32 based on the control information INF, and also control the display operation of the display unit 39D. Specifically, the light-emitting controller 38D can, for example, cause the light-emitting unit 32 to emit light and cause the display unit 39D to display information based on the control information INF.

[0172] In addition, for example, in addition to the display unit, the operation terminal may further include a touch panel. In this case, the user can perform an operation by touching a button image displayed on the display unit. The light-emitting controller can control the display operation of the display unit based on the control information INF so that the display unit displays a highlighted button image. For example, a smart phone can be used as the operation terminal.

[0173] [Modification Example 1-5]

[0174] In the above-described embodiment, the illuminance sensor 18 is provided in the display device 10. However, it is not limited thereto, and the illuminance sensor may be provided in the operation terminal 30. Then, the light-emitting controller 38 of the operation terminal 30 can control the light-emitting operation of the light-emitting unit 32 based on the detection result of the illuminance sensor 18 of the display device 10 and the detection result of the illuminance sensor of the operation terminal 30. In addition, in a case where the light-emitting operation can be controlled by using the illuminance sensor provided in the operation terminal 30 without using the illuminance sensor 18 provided in the display device 10, the light-emitting controller 38 can control the light-emitting operation by using only the detection result of the illuminance sensor in the operation terminal 30. In this case, the illuminance sensor 18 may not be provided in the display device 10.

[0175] Similarly, in accordance with Modification Example 1-3 ( Figure 10) In the display system 1B, for example, the illuminance sensor 18 and the color sensor 18B are provided in the display device 10B. However, it is not limited thereto, and the illuminance sensor and the color sensor may be provided in the operation terminal 30B. Then, the light emission controller 38B can control the light emission operation of the light emission unit 32B based on the detection results of the illuminance sensor 18 and the color sensor 18B of the display device 10B and the detection results of the illuminance sensor and the color sensor of the operation terminal 30B. In addition, in the case where the light emission operation can be controlled by using one or both of the illuminance sensor and the color sensor provided in the operation terminal 30B without using one or both of the illuminance sensor 18 and the color sensor 18B provided in the display device 10B, the light emission controller 38B can control the light emission operation by using only the detection results of the sensors in the operation terminal 30B. In this case, one or both of the illuminance sensor 18 and the color sensor 18B may not be provided in the display device 10B.

[0176] In addition, the control unit 21B of the display device 10B can control the operation of the display device 10B by receiving the environmental information (for example, the brightness of the environment or the color of the environment) acquired by one or both of the illuminance sensor and the color sensor provided on the operation terminal 30B from the operation terminal 30B. Specifically, for example, the control unit 21B can adjust the display brightness of the display unit 16 based on the information related to the brightness of the environment and acquired by the illuminance sensor of the operation terminal 30B. In addition, for example, the control unit 21B can adjust the display contrast of the display unit 16 based on the information related to the color of the environment and acquired by the color sensor of the operation terminal 30B. Therefore, using the information of the environmental sensor provided in the operation terminal 30B makes it possible to acquire environmental information that can reduce the influence caused by the reflection of the light emitted from the display unit 16 of the display device 10B. Note that the control of the display device 10B based on the environmental sensor of the operation terminal 30B is not limited to the control of the display unit 16, and any setting of the display device 10B can be changed. In addition, the sensor information sent from the environmental sensor of the operation terminal 30B to the display device 10B may be information corresponding to the sensor information INF1 or the control information INF.

[0177] In addition, in a case where an environmental sensor such as an illuminance sensor or a color sensor is provided in the operation terminal 30B, based on the detection of the movement of the operation terminal 30B or the detection of a user operation on the operation unit 31, the power supply unit 36 can supply a power voltage to the environmental sensor of the operation terminal 30B only for a short period corresponding to the detection timing. Further, in a case where the operation terminal 30B transmits an infrared signal, the transmission timing of the infrared signal and the timing of the illuminance detection process can be offset from each other to reduce the influence of the fluctuations of the infrared signal and the power voltage on the illuminance sensor of the operation terminal 30B. Specifically, for example, when the user presses the button B of the operation unit 31, the control unit 37B can detect information related to the brightness of the environment by using the illuminance sensor, and after the detection process of the illuminance sensor is completed, can control the infrared transmitter 34 to transmit an infrared signal corresponding to the button B to the device to be operated (such as the display device 10B).

[0178] In addition, the control unit 21B can operate the display device 10B by using the detection results of the acceleration sensor 33 and the environmental sensor of the operation terminal 30B. Specifically, for example, in a case where it is determined based on the detection results of the illuminance sensor or the acceleration sensor 33 of the operation terminal 30B that the operation terminal 30B is flipped, the control unit 21B can stop supplying the power voltage to the display unit 16, or can turn off the power of the display device 10B. In this case, the display device 10B can receive, for example, sensor information from the operation terminal 30B indicating that the operation surface S provided with the operation unit 31 and the illuminance sensor points downward in the vertical direction.

[0179] [Other modification examples]

[0180] In addition, two or more of these modification examples can be combined with each other.

[0181] <2. Second Embodiment>

[0182] Next, a description will be given of the display system 2 according to the second embodiment. The display system 2 according to the present embodiment is configured to control the light emission operation of the light emitting unit of the operation terminal according to the content displayed by the display device. Note that components that are substantially the same as those of the display system 1 according to the first embodiment are denoted by the same reference numerals, and their descriptions will be appropriately omitted.

[0183] Figure 13 A configuration example of the display system 2 is shown. The display system 2 includes a display device 40 and an operation terminal 50.

[0184] The display device 40 includes a control unit 41. The control unit 41 includes a content analyzer 43 and a control information generator 42.

[0185] The content analyzer 43 is configured to analyze the content displayed by the display unit 16 of the display device 40. Specifically, in a case where the display unit 16 displays a video based on, for example, a video signal selected by the tuner 11, the content analyzer 43 analyzes the content by analyzing the broadcast metadata included in the video signal.

[0186] The control information generator 42 is configured to generate control information INF for controlling the light emission operation of the light emitting unit 32 in the operation terminal 50 based on the analysis result of the content analyzer 43. Then, the display device 40 transmits the control information INF generated by the control information generator 42 to the operation terminal 50 via the wireless communication unit 13.

[0187] The operation terminal 50 includes a control unit 57. The control unit 57 includes a light emission controller 58. The light emission controller 58 is configured to control the light emission operation of the light emitting unit 32 based on the control information INF transmitted from the display device 40.

[0188] Figure 14 An operation example of the display device 40 is shown.

[0189] First, the control unit 41 checks whether the infrared receiver 12 has received an infrared signal transmitted from the operation terminal 50 (step S201).

[0190] If the infrared receiver 12 has received the infrared signal ("Yes" in step S201), the control unit 41 checks whether the user has performed a channel change operation (step S202). Specifically, the control unit 41 checks whether the user has performed a channel change operation by, for example, checking whether the infrared signal is a signal corresponding to an operation of the Figure 2 shown numeric button B3 or channel button B11.

[0191] If the user has performed a channel change operation in step S202 ("Yes" in step S202), the content analyzer 43 checks whether the content being displayed is an audio multiplexed broadcast content based on the broadcast metadata included in the video signal corresponding to the channel newly selected by the channel change operation (step S203). Examples of audio multiplexed broadcast content include multilingual content and content including main audio and sub-audio. If the content being displayed is an audio multiplexed broadcast content ("Yes" in step S203), the control information generator 42 generates content information INF2 including information indicating that the content being displayed is an audio multiplexed broadcast content (step S204).

[0192] Next, the content analyzer 43 checks whether the content being displayed is subtitle content based on the broadcast metadata (step S205). If the content being displayed is subtitle content ("Yes" in step S205), the control information generator 42 generates content information INF2 including information indicating that the content being displayed is subtitle content (step S206).

[0193] Next, the content analyzer 43 checks whether the content being displayed is data broadcast content based on the broadcast metadata (step S207). If the content being displayed is data broadcast content ("Yes" in step S207), the control information generator 42 generates content information INF2 including information indicating that the content being displayed is data broadcast content (step S208). Then, the process proceeds to step S211.

[0194] If the user does not perform a channel change operation in step S202 ("No" in step S201), the control unit 41 checks whether the user has performed an operation to select a moving image streaming service (step S209). Specifically, the control unit 41 checks whether the user has performed an operation to select a moving image streaming service by, for example, checking whether the infrared signal is a signal corresponding to an operation of the Figure 2 shown moving image service selection button B2. If the user has not performed an operation to select a moving image streaming service ("No" in step S209), the process ends.

[0195] If the user has performed an operation to select a moving image streaming service in step S209 ("Yes" in step S209), the control information generator 42 generates content information INF2 including information indicating that the content being displayed is content provided by the moving image streaming service (step S210). Then, the process proceeds to step S211.

[0196] Then, when the control information generator 42 has generated the content information INF2, the control unit 41 transmits control information INF including the content information INF2 to the operation terminal 50 via the wireless communication unit 13 (step S211). The process ends here.

[0197] Figure 15 An operation example of the display system 2 when the user performs a channel change operation is shown.

[0198] When the user performs a channel change operation by operating, for example, the numeric button B3 or the channel button B11 of the operation terminal 50, the control unit 57 of the operation terminal 50 detects the operation and changes the operation state of the operation terminal 50 from the sleep state to the normal operation state (step S221). Then, the infrared transmitter 34 emits an infrared signal corresponding to the channel change operation (step S222). The infrared receiver 12 of the display device 40 receives the infrared signal.

[0199] The tuner 11 of the display device 40 switches the channel based on the information about the channel change operation included in the infrared signal (step S223). Then, the content analyzer 43 analyzes the content by analyzing the broadcast metadata included in the video signal selected by the tuner 11 (step S224). The control information generator 42 generates content information INF2 based on the analysis result of the content analyzer 43 (step S225). Then, the control unit 41 transmits the control information INF including the content information INF2 to the operation terminal 50 via the wireless communication unit 13 (step S226). The control unit 57 of the operation terminal 50 receives the control information INF via the wireless communication unit 35.

[0200] The light emission controller 58 of the operation terminal 50 generates light emission control information INFBL based on the content information INF2 included in the control information INF (step S227).

[0201] For example, when the content information INF2 includes information indicating that the content being displayed is an audio multiplex broadcast content, the light emission controller 58 generates light emission control information INFBL that gives an instruction to cause the light emitting device corresponding to the audio selection button B14 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time.

[0202] In addition, for example, when the content information INF2 includes information indicating that the content being displayed is a subtitle content, the light emission controller 58 generates light emission control information INFBL that gives an instruction to cause the light emitting device corresponding to the subtitle button B15 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time.

[0203] In addition, for example, when the content information INF2 includes information indicating that the content being displayed is a data broadcast content, the light emission controller 58 generates light emission control information INFBL that gives an instruction to cause the light emitting devices corresponding to the data broadcast button B19, the color button B4, and the numeric button B3 ( Figure 2The light emission control information INFBL for the instruction to cause the light-emitting device to emit light within a predetermined time period. Note that the present disclosure is not limited thereto. For example, when the content being displayed is data broadcast content and the content does not accept operations on the color button B4 and the numeric button B3, the light-emitting controller 58 may generate the light emission control information INFBL that gives an instruction to cause the light-emitting device corresponding to the data broadcast button B19 to emit light within a predetermined time period. Further, for example, when the content being displayed is data broadcast content and the content accepts operations on the color button B4 and the numeric button B3, the light-emitting controller 58 may generate the light emission control information INFBL that gives an instruction to cause the light-emitting devices corresponding to the data broadcast button B19, the color button B4, and the numeric button B3 to emit light within a predetermined time period.

[0204] Further, for example, when the content information INF2 includes information indicating that the content being displayed is content provided by a moving image stream service, the light-emitting controller 58 generates the light emission control information INFBL that gives an instruction to cause the light-emitting device corresponding to the moving image content operation button B16 ( Figure 2 ) in the light-emitting unit 32 to emit light within a predetermined time period.

[0205] Next, the light-emitting controller 58 causes the light-emitting unit 32 to start emitting light based on the light emission control information INFBL (step S228). Thus, the button B in the operation unit 31 of the operation terminal 50 indicated by the light emission control information INFBL is highlighted by the light emitted from the light-emitting unit 32. Then, the light-emitting controller 58 causes the light-emitting unit 32 to end emitting light after a predetermined time period has elapsed based on the light emission control information INFBL (step S229). This sequence ends here.

[0206] As described above, in the display system 2, the control information generator 42 of the display device 40 generates the control information INF corresponding to the content being displayed by the display device 40. The light-emitting controller 58 of the operation terminal 50 controls the light emission operation of the light-emitting unit 32 based on the control information INF. Thus, in the display system 2, the button B that may be operated by the user can be highlighted by the light from the light-emitting unit 32. This enables the user to easily find, for example, the button B that the user wants to operate from among a plurality of buttons B. Therefore, the display system 2 can improve the convenience for the user.

[0207] As described above, in the present embodiment, the control information generator of the display device generates the control information corresponding to the content being displayed by the display device, and the light-emitting controller of the operation terminal controls the light emission operation of the light-emitting unit based on the control information. This enables the user to easily find, for example, the button that the user wants to operate, which can improve the convenience for the user. Other effects are similar to those in the case of the first embodiment.

[0208] [Modification Example 2-1]

[0209] In the above embodiment, the control information INF includes the content information INF2. However, the present disclosure is not limited thereto. For example, the control information INF may include the light emission control information INFBL that gives an instruction for the light emission operation of the light emitting unit 32, as in the case of Modification Example 1-1 of the first embodiment.

[0210] [Modification Example 2-2]

[0211] In the above embodiment, when the content being displayed is an audio multiplexed broadcast content, a subtitle content, a data broadcast content, or a content provided by a moving image streaming service, the button B corresponding to the content is highlighted by the light from the light emitting unit 32, but the present disclosure is not limited thereto. For example, for three or fewer types of these four types of content, the corresponding button B may be highlighted. Specifically, for example, when the content being displayed is an audio multiplexed broadcast content, a subtitle content, or a content provided by a moving image streaming service, the button B corresponding to the content may be highlighted, and when the content being displayed is a data broadcast content, the corresponding button B may not be highlighted.

[0212] <3. Third Embodiment>

[0213] Next, a description will be given of the display system 3 according to the third embodiment. The display system 3 according to the present embodiment is configured to analyze the video being displayed and control the light emission operation of the light emitting unit of the operation terminal based on the analysis result. Note that components that are substantially the same as those of the display system 1 according to the first embodiment are denoted by the same reference numerals, and their descriptions will be appropriately omitted.

[0214] Figure 16 A configuration example of the display system 3 is shown. The display system 3 includes a display device 60 and an operation terminal 70.

[0215] The display device 60 includes a control unit 61. The control unit 61 includes an image analyzer 63 and a control information generator 62.

[0216] The image analyzer 63 is configured to analyze the image displayed by the display unit 16 based on the video signal. Specifically, the image analyzer 63 generates information about the average color of all pixels in the frame image based on the video signal, for example. Note that although the image analyzer 63 of the display device 60 analyzes the image in this example, the present disclosure is not limited thereto. Alternatively, for example, an external server may analyze the image.

[0217] The control information generator 62 is configured to generate control information INF for controlling the light emission operation of the light emitting unit 72 in the operation terminal 70 based on the analysis result of the image analyzer 63. Then, the control unit 61 transmits the control information INF generated by the control information generator 62 to the operation terminal 70 via the wireless communication unit 13.

[0218] The operation terminal 70 includes a light emitting unit 72 and a control unit 77.

[0219] The light emitting unit 72 is configured to be able to emit light from the entire surface of the operation surface S. Specifically, for example, by configuring the housing and buttons B of the operation terminal 70 using a translucent material and emitting light through the light emitting unit 72, light can be emitted from the operation surface S. The light emitting unit 72 includes, for example, a light emitting device that emits red light, a light emitting device that emits green light, and a light emitting device that emits blue light.

[0220] The control unit 77 includes a light emission controller 78. The light emission controller 78 is configured to control the light emission operation of the light emitting unit 72 based on the control information INF transmitted from the display device 60.

[0221] Figure 17 An operation example of the display device 60 is shown. Whenever a predetermined period (for example, about several seconds) elapses, the display device 60 repeatedly executes the following operations.

[0222] First, the image analyzer 63 analyzes the image displayed by the display unit 16 based on the video signal (step S301).

[0223] Next, the control information generator 62 generates image color information INF3 based on the analysis result of the image analyzer 63 (step S302). In this example, the image color information INF3 includes information about the average color in the frame image. The image color information INF3 can be represented, for example, by using the luminance signal (Y) and the chrominance signals (Cr, Cb). Note that it is not limited thereto, and it can be represented by using the red signal (R), the green signal (G), and the blue signal (B).

[0224] Then, the control unit 61 transmits the control information INF including the image color information INF3 to the operation terminal 70 via the wireless communication unit 13 (step S303). This process ends here.

[0225] Figure 18 An operation example of the display system 3 is shown.

[0226] The image analyzer 63 of the display device 60 analyzes an image based on a video signal (step S321), and the control information generator 62 generates image color information INF3 based on the image analysis result (step S322). Then, the control unit 61 transmits the control information INF including the image color information INF3 to the operation terminal 70 via the wireless communication unit 13 (step S323). The control unit 77 of the operation terminal 70 receives the control information INF via the wireless communication unit 35.

[0227] The light emission controller 78 of the operation terminal 70 generates light emission control information INFBL based on the image color information INF3 included in the control information INF (step S324).

[0228] For example, when the display unit 16 is displaying a scene where something is burning, the image color information INF3 includes information about red, for example. In this case, the light emission controller 78 generates the light emission control information INFBL by setting the light emission luminance of each light emitting device so that the light emitting unit 72 emits red light. Further, for example, when the display unit 16 is displaying a scene of a forest, the image color information INF3 includes information about green, for example. In this case, the light emission controller 78 generates the light emission control information INFBL that gives an instruction to cause the light emitting device to emit light so that the light emitting unit 72 emits green light. Further, for example, when the display unit 16 is displaying a scene of the ocean or a scene of a blue sky, the image color information INF3 includes information about blue, for example. In this case, the light emission controller 78 generates the light emission control information INFBL that gives an instruction to cause the light emitting device to emit light so that the light emitting unit 72 emits blue light.

[0229] Next, the light emission controller 78 controls the light emission operation of the light emitting unit 72 based on the light emission control information INFBL (step S325). Therefore, light corresponding to the color of the scene displayed by the display unit 16 is emitted from the operation surface S of the operation terminal 70.

[0230] This sequence ends here. By repeating this sequence, the operation terminal 70 can keep emitting light corresponding to the color of the scene being displayed by the display unit 16.

[0231] As described above, in the display system 3, the control information generator 62 of the display device 60 generates the control information INF corresponding to the color being displayed by the display unit 16. The light emission controller 78 of the operation terminal 70 controls the light emission operation of the light emitting unit 72 based on the control information INF. Therefore, the operation terminal 70 can emit light corresponding to the color of the scene displayed by the display unit 16, which enables a user viewing the content to feel more realistic, for example.

[0232] As described above, in the present embodiment, the control information generator of the display device generates control information corresponding to the color being displayed by the display unit, and the light emission controller of the operation terminal controls the light emission operation of the light emitting unit based on the control information. This enables the user to feel more realistic.

[0233] [Modification Example 3-1]

[0234] In the above embodiment, the control information INF includes the image color information INF3. However, it is not limited thereto. For example, the control information INF may include the light emission control information INFBL that gives an instruction for the light emission operation of the light emitting unit 72, as in the case of the display system 1A of Modification Example 1-1 according to the first embodiment.

[0235] [Modification Example 3-2]

[0236] In the above embodiment, the light emitting unit 72 capable of emitting light from the entire surface of the operation surface S is provided, but the present disclosure is not limited thereto. For example, a light emitting unit 72 capable of highlighting a plurality of buttons B in the operation unit 31 by light emission may be provided, as in the display system 1B of Modification Example 1-3 according to the first embodiment. Also in this case, by controlling the light emission luminance of each color light emitting device included in the light emitting unit 72, light corresponding to the color of the scene displayed by the display unit 16 can be emitted from the operation surface S.

[0237] <4. Fourth Embodiment>

[0238] Next, a description of the display system 4 according to the fourth embodiment will be given. The display system 4 according to the present embodiment is configured to control the light emission operation of the light emitting unit of the operation terminal according to the notification information when the display device notifies the user of information. Note that components that are substantially the same as those of the display system 1 according to the first embodiment are denoted by the same reference numerals, and their descriptions will be appropriately omitted.

[0239] Figure 19 A configuration example of the display system 4 is shown. The display system 4 includes a display device 80 and an operation terminal 90.

[0240] The display device 80 includes a control unit 81. The control unit 81 includes a notification processor 83 and a control information generator 82.

[0241] The notification processor 83 is configured to check whether there is information to be notified to the user, and for example, in the case where there is information to be notified to the user, generate a notification message to be displayed on the display unit 16.

[0242] The control information generator 82 is configured to generate control information INF for controlling the light emission operation of the light-emitting unit 32 in the operation terminal 90 based on the processing of the notification processor 83. Then, the control unit 81 transmits the control information INF generated by the control information generator 82 to the operation terminal 90 via the wireless communication unit 13.

[0243] The operation terminal 90 includes a control unit 97. The control unit 97 includes a light emission controller 98. The light emission controller 98 is configured to control the light emission operation of the light-emitting unit 32 based on the control information INF transmitted from the display device 80.

[0244] In addition, in this example, the software distribution server 202 is coupled to the Internet NET. The software distribution server 202 is configured to transmit software such as firmware to the display device 80.

[0245] Figure 20A and Figure 20B An operation example of the display device 80 is shown.

[0246] First, the control unit 81 checks whether the software to be updated has been newly recorded in the software distribution server 202 (step S401). If the software to be updated has been newly recorded (Yes in step S401), the notification processor 83 generates a notification message indicating that there is software to be updated, and the display unit 16 displays the notification message (step S402). Then, the control information generator 82 generates notification information INF4 including information indicating that there is software to be updated (step S403).

[0247] Next, the control unit 81 checks whether an external device has been newly coupled to the external device interface 14 (step S404). If an external device has been newly coupled to the external device interface 14, the notification processor 83 generates a notification message indicating that the external device has been newly coupled, and the display unit 16 displays the notification message (step S405). Then, the control information generator 82 generates notification information INF4 including information indicating that the external device has been newly coupled (step S406).

[0248] Next, in the case where the recording and playback device is coupled to the external device interface 14, for example, the control unit 81 checks whether there is newly recorded content in the recording and playback device (step S407). If there is newly recorded content (Yes in step S407), the notification processor 83 generates a notification message indicating that there is newly recorded content, and the display unit 16 displays the notification message (step S408). Then, the control information generator 82 generates notification information INF4 including information indicating that there is newly recorded content (step S409).

[0249] Next, the control unit 81 checks whether there is a suggestion for a setting change for the user (step S410). If there is a suggestion for a setting change ("Yes" in step S410), the notification processor 83 is notified to generate a notification message regarding the details of the setting change to be suggested, and the display unit 16 displays the notification message (step S411). Then, the control information generator 82 generates notification information INF4 including information indicating the suggestion for the setting change (step S412).

[0250] Next, the control unit 81 checks whether content has been newly recorded in the content server 201 of the moving image streaming service (step S413). If content has been newly recorded ("Yes" in step S413), the notification processor 83 is notified to generate a notification message indicating that the content has been newly recorded in the moving image streaming service, and the display unit 16 displays the notification message (step S414). Then, the control information generator 82 generates notification information INF4 including information indicating that the content has been newly recorded in the moving image streaming service (step S415).

[0251] Then, the control unit 81 transmits control information INF including notification information INF4 to the operation terminal 90 via the wireless communication unit 13 (step S416). This process ends here.

[0252] Figure 21 An operation example of the display system 4 is shown.

[0253] The notification processor 83 of the display device 80 generates a notification message, and the display unit 16 displays the notification message (step S421). The control information generator 82 generates notification information INF4 based on the processing of the notification processor 83 (step S422). Then, the control unit 81 transmits control information INF including notification information INF4 to the operation terminal 90 via the wireless communication unit 13 (step S423). The control unit 97 of the operation terminal 90 receives the control information INF via the wireless communication unit 35.

[0254] The light emission controller 98 of the operation terminal 90 generates light emission control information INFBL based on the notification information INF4 included in the control information INF (step S424).

[0255] For example, in the case where the notification information INF4 includes information indicating that there is software to be updated, the light emission controller 98 generates light emission control information INFBL giving an instruction to cause the light emitting device corresponding to the help button B18 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time.

[0256] In addition, for example, when the notification information INF4 includes information indicating that an external device is newly coupled, the light emission controller 98 generates light emission control information INFBL that gives an instruction to cause the light emitting device corresponding to the input selection button B7 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time.

[0257] In addition, for example, when the notification information INF4 includes information indicating the existence of newly recorded content, the light emission controller 98 generates light emission control information INFBL that gives an instruction to cause the light emitting device corresponding to the recording list button B17 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time.

[0258] In addition, for example, when the notification information INF4 includes information indicating the existence of a suggestion for a setting change, the light emission controller 98 generates light emission control information INFBL that gives an instruction to cause the light emitting device corresponding to the setting button B6 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time.

[0259] In addition, for example, when the notification information INF4 includes information indicating that content has been newly recorded in the moving image streaming service, the light emission controller 98 generates light emission control information INFBL that gives an instruction to cause the light emitting device corresponding to the moving image service selection button B2 ( Figure 2 ) in the light emitting unit 32 to emit light for a predetermined period of time. Specifically, for example, when the content is newly recorded in the service S1 of the moving image streaming service, the light emission controller 98 may generate light emission control information INFBL that gives an instruction to cause the light emitting device of the button B corresponding to the service S1 in the moving image service selection button B2 to emit light.

[0260] Next, the light emission controller 98 causes the light emitting unit 32 to start emitting light based on the light emission control information INFBL (step S425). Accordingly, the button B in the operation unit 31 of the operation terminal 90 indicated by the light emission control information INFBL is highlighted by the light emitted from the light emitting unit 32. Then, the light emission controller 98 causes the light emitting unit 32 to end emitting light after a predetermined period of time based on the light emission control information INFBL (step S426). The sequence ends here.

[0261] As described above, in the display system 4, the control information generator 82 of the display device 80 generates control information INF corresponding to the information to be notified to the user. The light emission controller 98 of the operation terminal 90 controls the light emission operation of the light emitting unit 32 based on the control information INF. Therefore, in the display system 4, the button B that can be operated by the user can be highlighted by the light from the light emitting unit 32. This enables the user to easily find, for example, the button B that the user wants to operate from among a plurality of buttons B. Therefore, the display system 4 can improve the convenience for the user.

[0262] As described above, in the present embodiment, the control information generator of the display device generates control information corresponding to the information to be notified to the user, and the light emission controller of the operation terminal controls the light emission operation of the light emitting unit based on the control information. This enables the user to easily find, for example, the button that the user wants to operate, which makes it possible to improve the convenience for the user. Other effects are similar to those in the case of the first embodiment.

[0263] [Modification Example 4-1]

[0264] In the above-described embodiment, the control information INF includes the notification information INF4. However, it is not limited thereto. For example, the control information INF may include light emission control information INFBL that gives an instruction for the light emission operation of the light emitting unit 32, as in the case of the display system 1A of Modification Example 1-1 according to the first embodiment.

[0265] [Modification Example 4-2]

[0266] In the above-described embodiment, the software distribution server 202 distributes software, but the present disclosure is not limited thereto. For example, a broadcasting station may distribute software by using a digital broadcast wave. In this case, the control unit 81 may check whether the software has been updated based on the software provided by using the digital broadcast wave.

[0267] [Modification Example 4-3]

[0268] In the above-described embodiment, as shown in steps S425 and S426, the button B corresponding to the notification information in the operation terminal 90 is highlighted by the light from the light emitting unit 32 for a predetermined period, but the present disclosure is not limited thereto. Alternatively, for example, when the display unit 16 of the display device 80 displays a notification message in step S421, the button B corresponding to the notification message may be highlighted during the period when the display unit 16 displays the notification message.

[0269] [Modification Example 4-4]

[0270] Although the above embodiments describe the information to be notified to the user with reference to some examples, the present disclosure is not limited thereto. For example, in a case where the content associated with the content viewed by the user can be viewed through a broadcast, a moving image streaming service, etc., the display unit 16 may display a notification message indicating the situation, and the button B corresponding to the notification message may be highlighted by the light from the light emitting unit 32.

[0271] Specifically, in the display device 80, for example, when the user finishes viewing a broadcast movie, the notification processor 83 generates a notification message indicating that other movies related to the movie director of the movie can be viewed in the service S1 in the moving image streaming service, and the display unit 16 displays the notification message. The control information generator 82 generates notification information INF4 corresponding to the notification message, and the control unit 81 transmits control information INF including the notification information INF4 to the operation terminal 90 via the wireless communication unit 13. Based on the notification information INF4 included in the control information INF, the operation terminal 90 highlights the button B corresponding to the service S1 in the moving image service selection button B2 by the light from the light emitting unit 32.

[0272] In addition, for example, in a case where the user views the official trailer of a drama via a moving image streaming service, the notification processor 83 creates a notification message indicating that the drama can be viewed via the video-on-demand (VOD) service of the set-top box coupled to the external device interface 14, and the display unit 16 displays the notification message. The control information generator 82 generates notification information INF4 corresponding to the notification message, and the control unit 81 transmits control information INF including the notification information INF4 to the operation terminal 90 via the wireless communication unit 13. The operation terminal 90 highlights the input selection button B7 by the light from the light emitting unit 32 based on the notification information INF4 included in the control information INF.

[0273] As described above, the display device 80 can recommend content to the user by displaying a notification message based on the content viewed by the user. Then, the operation terminal 90 highlights the button B corresponding to the way to view the recommended content. This enables the user to easily find the button to be operated to view the content, which can improve the convenience of the user.

[0274] [Modification Example 4-5]

[0275] In the above embodiment, the light-emitting unit 32 of the operation terminal 90 emits light based on the notification information INF4 transmitted from the display device 80 and associated with the content. However, the present disclosure is not limited thereto. For example, the notification processor 83 of the display device 80 may generate a notification message according to the state of the battery included in the operation terminal 90, and the display unit 16 may display the notification message. Specifically, in a state where the remaining amount of the battery included in the operation terminal 90 has dropped below a predetermined level, or when the battery included in the operation terminal 90 is being charged, the operation terminal 90 may transmit information related to such a state of the battery to the display device 80, and the display unit 16 of the display device 80 may display a notification message corresponding to the received information related to the state of the battery. In this case, the notification-related information (such as information related to the state of the battery) transmitted from the operation terminal 90 to the display device 80 may be information corresponding to the notification information INF4 or the control information INF, or may be information exchanged via the wireless communication unit 35 and the wireless communication unit 13.

[0276] In addition, the operation terminal 90 may cause the light-emitting unit 32 to emit light according to the state of the included battery. In this case, during the light emission, one or more buttons B may be highlighted in a predetermined color and at a predetermined timing. Specifically, when the remaining amount of the battery drops below a predetermined level, the power button B1 may be controlled to blink in red, and when the battery charging starts, the power button B1 may be highlighted in a color other than red. In this case, a plurality of buttons B (for example, the power button B1 and the numeric button B3) may be highlighted. In addition, the display device 80 or the operation terminal 90 may make the highlighted representation of the button B of the operation terminal 90 and the notification message displayed on the display unit 16 correspond to each other. Specifically, the color or timing of the light emission of the light-emitting unit 32 and the color or timing of the notification message displayed on the display unit 16 may correspond to each other. In this case, for example, if the remaining amount of the battery of the operation terminal 90 drops below a predetermined level, or if the battery charging starts, the color and blinking frequency of the light emission of the light-emitting unit 32 may be controlled to be the same as the color and blinking frequency of the notification message displayed on the display unit 16. In addition, in the case where the battery of the operation terminal 90 is charged by a wireless power supply, when placed on the wireless power charger, the operation terminal 90 may transmit information related to the light emission of the light-emitting unit 32 or the state of the battery to the display device 80.

[0277] <5. Fifth Embodiment>

[0278] Next, a description of the display system 5 according to the fifth embodiment will be given. The display system 5 according to the present embodiment is configured to control the lighting operation of the lighting unit of the operation terminal according to the voice assistant selected by the user when a plurality of voice assistants are installed on the display device. Note that components that are substantially the same as those of the display system 1 according to the first embodiment are denoted by the same reference numerals, and their descriptions will be appropriately omitted.

[0279] Figure 22 A configuration example of the display system 5 is shown. The display system 5 includes a display device 100 and an operation terminal 110.

[0280] The display device 100 includes a control unit 101. The control unit 101 includes two voice assistant processors (voice assistant processors 103A and 103B) and a control information generator 102.

[0281] The voice assistant processors are configured to perform processing corresponding to the user's instructions included in the voice data based on the user's voice data. The voice assistant processor 103A implements the function of the voice assistant VA, and the voice assistant processor 103B implements the function of the voice assistant VB. The user selects the voice assistant to be used from the voice assistants VA and VB by operating the voice assistant call button B5 of the operation terminal 110. The control unit 101 of the display device 100 selects one of the voice assistants VA and VB based on the button operation code received from the operation terminal 110 via the wireless communication unit 13 and corresponding to the operation of the voice assistant call button B5.

[0282] When the button operation code sent from the operation terminal 110 indicates an operation in which the user selects the voice assistant VA, the voice assistant processor 103A sends the subsequent voice data sent from the operation terminal 110 to the server 204A coupled to the Internet NET. Then, the voice assistant processor 103A performs processing corresponding to the user's instructions included in the voice data based on the information analyzed by the server 204A.

[0283] When the button operation code sent from the operation terminal 110 indicates an operation in which the user selects the voice assistant VB, the voice assistant processor 103B sends the subsequent voice data sent from the operation terminal 110 to the server 204B coupled to the Internet NET. Then, the voice assistant processor 103B performs processing corresponding to the user's instructions included in the voice data based on the information analyzed by the server 204B.

[0284] The control information generator 102 is configured to generate control information INF for controlling the lighting operation of the lighting unit 112 in the operation terminal 110 according to the voice assistant selected by the user from the two voice assistants VA and VB. Then, the control unit 101 sends the control information INF generated by the control information generator 102 to the operation terminal 110 via the wireless communication unit 13.

[0285] The operation terminal 110 includes a lighting unit 112, a microphone 113, and a control unit 117.

[0286] The lighting unit 112 is configured to highlight a plurality of buttons B in the operation unit 31 by lighting. The lighting unit 112 includes, for example, a plurality of lighting devices. The plurality of lighting devices include, for example, a lighting device that emits red light, a lighting device that emits green light, and a lighting device that emits blue light.

[0287] The microphone 113 is configured to convert, for example, the user's voice into an electrical signal. The control unit 117 generates voice data based on the electrical signal provided by the microphone 113 and sends the voice data to the display device 100 via the wireless communication unit 35.

[0288] For example, when the user operates the voice assistant call button B5 ( Figure 2 ), the control unit 117 sends a button operation code via the wireless communication unit 35. The button operation code includes a press code indicating that the voice assistant call button B5 has been pressed and a release code indicating that the pressed voice assistant call button B5 has been released.

[0289] The control unit 117 includes a lighting controller 118. The lighting controller 118 is configured to control the lighting operation of the lighting unit 112 based on the control information INF sent from the display device 100.

[0290] Here, the display device 100 corresponds to a specific example of the "information processing device" according to the present disclosure. The control information generator 102 corresponds to a specific example of the "generator" according to the present disclosure. The voice assistant processor corresponds to a specific example of the "voice analyzer" according to the present disclosure.

[0291] Figure 23 An operation example of the display device 100 is shown.

[0292] First, the control unit 101 checks whether a user operation on the voice assistant call button B5 has been detected (step S501). For example, when selecting the voice assistant VA, the user briefly presses the voice assistant call button B5 in the operation terminal 110 ( Figure 2 ). When selecting the voice assistant VB, the user long-presses the voice assistant call button B5 ( Figure 2)。The control unit 101 selects the voice assistant VA when the button operation code received via the wireless communication unit 13 indicates that the voice assistant call button B5 ( Figure 2 ) has been pressed briefly, and selects the voice assistant VB when the button operation code received via the wireless communication unit 13 indicates that the voice assistant call button B5 ( Figure 2 ) has been pressed for a long time. If no user operation on the voice assistant call button B5 is detected ("No" in step S501), the process ends.

[0293] Note that in this example, the operation of selecting the voice assistant VA or VB is performed based on the length of time the voice assistant call button B5 is pressed, but it is not limited to this. For example, the operation of selecting the voice assistant VA or VB can be performed based on the number of times the voice assistant call button B5 is pressed. For example, the control unit 101 can select the voice assistant VA when the button operation code received via the wireless communication unit 13 indicates that the voice assistant call button B5 has been pressed once, and can select the voice assistant VB when the button operation code received via the wireless communication unit 13 indicates that the voice assistant call button B5 has been pressed twice continuously.

[0294] If a user operation on the voice assistant call button B5 is detected in step S501, the control unit 101 sends a microphone activation code to the operation terminal 110 via the wireless communication unit 13 (step S502).

[0295] Next, it is checked whether the voice assistant VA has been selected (step S503). If the voice assistant VA has been selected ("Yes" in step S503), the control information generator 102 generates assistant information INF5 including information indicating that the voice assistant VA has been selected (step S504). In addition, if the voice assistant VB has been selected ("No" in step S503), the control information generator 102 generates assistant information INF5 including information indicating that the voice assistant VB has been selected (step S505).

[0296] Then, the control unit 101 sends the control information INF including the assistant information INF5 to the operation terminal 110 via the wireless communication unit 13 (step S506). The process ends here.

[0297] Figure 24 An operation example of the display system 5 when the user operates the voice assistant call button B5 is shown.

[0298] When the user operates the voice assistant call button B5 of the operation terminal 110, the control unit 117 of the operation terminal 110 detects this operation and changes the operation state of the operation terminal 110 from the sleep state to the normal operation state (step S521). Then, the control unit 117 sends a button operation code corresponding to the operation of the voice assistant call button B5 via the wireless communication unit 35 (step S522). The control unit 101 of the display device 100 receives this button operation code via the wireless communication unit 13.

[0299] Next, the control unit 101 of the display device 100 sends a microphone activation code to the operation terminal 110 via the wireless communication unit 13 (step S523). The control unit 117 of the operation terminal 110 receives this microphone activation code via the wireless communication unit 35. The control unit 117 activates the microphone 113 based on the microphone activation code. The operation terminal 110 thus accepts voice input.

[0300] The control unit 101 of the display device 100 selects one of the voice assistants VA and VB based on the information about the operation of the voice assistant call button B5 included in the microphone activation code (step S524). The control information generator 102 generates assistant information INF5 based on the selection result of the voice assistant (step S525). Then, the control unit 101 sends control information INF including the assistant information INF5 to the operation terminal 110 via the wireless communication unit 13 (step S526). The control unit 117 of the operation terminal 110 receives this control information INF via the wireless communication unit 35.

[0301] The light emission controller 118 of the operation terminal 110 generates light emission control information INFBL based on the assistant information INF5 included in the control information INF (step S527).

[0302] For example, in the case where the assistant information INF5 includes information indicating that the voice assistant VA has been selected, the light emission controller 118 generates light emission control information INFBL that gives an instruction to cause the light emitting device in the light emitting unit 112 to emit light to highlight the voice assistant call button B5 in orange, for example, during the period when the voice assistant VA is receiving voice input ( Figure 2 ).

[0303] In addition, for example, in the case where the assistant information INF5 includes information indicating that the voice assistant VB has been selected, the light emission controller 118 generates light emission control information INFBL that gives an instruction to cause the light emitting device in the light emitting unit 112 to emit light to highlight the voice assistant call button B5 in blue, for example, during the period when the voice assistant VB is receiving voice input ( Figure 2 ).

[0304] Next, the light emission controller 118 causes the light emission unit 112 to start emitting light based on the light emission control information INFBL (step S528). Accordingly, the voice assistant call button B5 in the operation unit 31 of the operation terminal 110 is highlighted by the light emitted from the light emission unit 112. Then, based on the light emission control information INFBL, the light emission controller 118 causes the light emission unit 112 to end light emission after the period during which the voice assistant accepts voice input (step S529). This sequence ends here.

[0305] As described above, in the display system 5, the control information generator 102 of the display device 100 generates control information INF corresponding to the selected voice assistant. The light emission controller 118 of the operation terminal 110 controls the light emission operation of the light emission unit 112 based on the control information INF. Accordingly, the display system 5 enables the user to easily understand the selected voice assistant among the two voice assistants VA and VB, and to easily understand whether the selected voice assistant is accepting voice input. Therefore, the display system 5 can improve user convenience.

[0306] As described above, in the present embodiment, the control information generator of the display device generates control information corresponding to the selected voice assistant, and the light emission controller of the operation terminal controls the light emission operation of the light emission unit based on the control information. For example, this enables the user to easily understand the selected voice assistant, which can improve user convenience. Other effects are similar to those of the first embodiment.

[0307] [Modification Example 5-1]

[0308] In the above embodiment, the control information INF includes the assistant information INF5. However, it is not limited thereto. For example, the control information INF may include light emission control information INFBL that gives an instruction for the light emission operation of the light emission unit 112, as in the case of the display system 1A of Modification Example 1-1 according to the first embodiment.

[0309] [Modification Example 5-2]

[0310] In the above embodiment, the voice assistant to be used is selected by the user operating the voice assistant call button B5, but the present disclosure is not limited thereto. Alternatively, for example, the user can select the voice assistant to be used from the voice assistants VA and VB by uttering voice assistant call words (call words WA and WB) respectively associated with the voice assistants VA and VB. The following is a detailed description of this modification example.

[0311] Figure 25 A configuration example of a display system 5A according to this modification example is shown. The display system 5A includes a display device 100A and an operation terminal 110A.

[0312] The display device 100A includes a control unit 101A. The control unit 101 includes two voice assistant processors (voice assistant processors 103A and 103B). The user selects the voice assistant to be used from the voice assistants VA and VB by issuing voice assistant call words (call words WA and WB) associated with the voice assistant processors 103A and 103B respectively to the microphone 113 of the operation terminal 110A. The control unit 101A of the display device 100A selects one of the voice assistants VA and VB based on an assistant selection code received via the wireless communication unit 13 from the operation terminal 110A and including information about the voice assistant to be used.

[0313] The operation terminal 110A includes a control unit 117A. Different from the case of the above-described embodiment, the control unit 117A performs control so that the microphone 113 always accepts voice input. The control unit 117A includes two voice processors (voice processors 119A and 119B). In a case where the voice data acquired by the microphone 113 includes a voice assistant call word (call word WA) associated with the voice assistant VA, the voice processor 119A generates an assistant selection code giving an instruction to select the voice assistant VA. Similarly, in a case where the voice data acquired by the microphone 113 includes a voice assistant call word (call word WB) associated with the voice assistant VB, the voice processor 119B generates an assistant selection code giving an instruction to select the voice assistant VB. The control unit 117A transmits the generated assistant selection code to the display device 100A via the wireless communication unit 35.

[0314] Figure 26 An operation example of the display device 100A is shown.

[0315] First, the control unit 101A checks whether an assistant selection code has been received via the wireless communication unit 13 (step S531). If the assistant selection code has not been received (\"No\" in step S531), the process ends.

[0316] If the assistant selection code has been received in step S531, the control unit 101A checks whether the voice assistant VA has been selected (step S503). If the voice assistant VA has been selected (\"Yes\" in step S503), the control information generator 102 generates assistant information INF5 including information indicating that the voice assistant VA has been selected (step S504). Further, if the voice assistant VB has been selected (\"No\" in step S503), the control information generator 102 generates assistant information INF5 including information indicating that the voice assistant VB has been selected (step S505).

[0317] Then, the control unit 101A transmits control information INF including assistant information INF5 to the operation terminal 110A via the wireless communication unit 13 (step S506). This process ends here.

[0318] [Modification Example 5-3]

[0319] In the above embodiment, the microphone 113 is provided in the operation terminal 110, but it is not limited thereto. Optionally, for example, a microphone can be provided in the display device, such as Figure 27 in the display system 5B shown. The display system 5B includes a display device 100B and an operation terminal 110B. The display device 100B includes a microphone 108B and a control unit 101B. The operation terminal 110B includes a control unit 117B. In this example, the control unit 101B of the display device 100B generates voice data based on the electrical signal provided by the microphone 108B of the display device 100B. The control information generator 102 of the display device 100B generates assistant information INF5 including information indicating that the voice assistant VA has been selected when the voice assistant VA has been selected, and generates assistant information INF5 including information indicating that the voice assistant VB has been selected when the voice assistant VB has been selected. The control unit 101B transmits control information INF including assistant information INF5 to the operation terminal 110B via the wireless communication unit 13.

[0320] [Modification Example 5-4]

[0321] In the above embodiment, two voice assistant processors are provided in the display device 100B, but the present disclosure is not limited thereto. One voice assistant processor can be provided in the display device, and one voice assistant processor can be provided in an external device coupled to the display device. For example, the external device is a smart speaker. The display device and the external device are coupled to each other via, for example, a wireless LAN. In this example, the smart speaker generates voice data based on the user's voice and sends the voice data to a server coupled to the Internet NET and associated with the smart speaker. The server analyzes the voice data. When the user's instruction included in the voice data is an instruction to operate the display device, the server sends information about the operation instruction to the display device. When receiving an instruction to operate the display device from the server, the voice assistant processor of the display device generates assistant information INF5 including information indicating that the voice assistant of the display device has been selected. Then, the control unit of the display device transmits control information INF including assistant information INF5 to the operation terminal 110B via the wireless communication unit 13.

[0322] [Modification Example 5-5]

[0323] In the above embodiment, the voice assistant call button B5 ( Figure 2 ) is highlighted by the light emitted from the light emitting unit 112 according to the selected voice assistant, but the present disclosure is not limited thereto. Optionally, for example, all the buttons B in the operation terminal 110B may be highlighted by the light emitted from the light emitting unit 112 according to the selected voice assistant.

[0324] [Modification Example 5-6]

[0325] In the above embodiment, an action is performed according to the selected voice assistant, but the present disclosure is not limited thereto. For example, according to an instruction of a user included in the voice data, a button B related to the instruction may be highlighted by the light emitted from the light emitting unit 112. For example, in a case where the voice data is an instruction for viewing content of the service S1, a button B corresponding to the service S1 in the moving image service selection button B2 may be highlighted by the light emitted from the light emitting unit 112.

[0326] <6. Sixth Embodiment>

[0327] Next, a description will be given of a display system 6 according to a sixth embodiment. The display system 6 according to the present embodiment is configured to control the light emission operation of the light emitting unit of the operation terminal according to an external device (such as a set-top box) coupled to the display device. Note that components substantially the same as those of the display system 1 according to the first embodiment are denoted by the same reference numerals, and their descriptions will be appropriately omitted.

[0328] Figure 28 A configuration example of the display system 6 is shown. The display system 6 includes a display device 120 and an operation terminal 130.

[0329] The display device 120 includes a control unit 121. The control unit 121 includes an external device detector 123, a switching controller 124, and a control information generator 122. In this example, a set-top box 203 is coupled to the external device interface 14 of the display device 120.

[0330] The external device detector 123 is configured to detect that an external device (in this example, a set-top box 203) is coupled to the external device interface 14, and acquire information on what type of device the external device is by communicating with the external device via the external device interface 14. The type of the external device includes, for example, a set-top box, a recording and playback device, and a playback device.

[0331] The switching controller 124 is configured to set the video source to be displayed based on information regarding the operation of the input selection button B7 included in the infrared signal, and set the target to be controlled by the operation terminal 130 according to the set source. Specifically, for example, assume a case where the set-top box 203 coupled to the external device interface 14 is set as the video source to be displayed. In this case, when the user operates, for example, the numeric button B3, the cursor button B8, the enter button B9, the channel button B11, the moving image content operation button B16, and the recording list button B17, the switching controller 124 changes the control target to the set-top box 203 based on these user operations, for example. Thus, in the display system 6, for example, when the display device 120 displays a video based on the video signal selected by the tuner 11, the user can remotely operate the display device 120 by operating the operation unit 31 of the operation terminal 130. When the display device 120 displays a video based on the video signal provided from the set-top box 203, the user can remotely operate the set-top box 203 by operating the operation unit 31 of the operation terminal 130.

[0332] The control information generator 122 is configured to, when an external device coupled to the external device interface 14 is selected as the video source to be displayed by the user, for example, by operating the input selection button B7, generate control information INF for controlling the lighting operation of the lighting unit 112 in the operation terminal 130 according to the external device. Then, the control unit 121 transmits the control information INF generated by the control information generator 122 to the operation terminal 130 via the wireless communication unit 13.

[0333] The operation terminal 130 includes a control unit 137. The control unit 137 includes a lighting controller 138. The lighting controller 138 is configured to control the lighting operation of the lighting unit 112 based on the control information INF transmitted from the display device 120.

[0334] Here, the display device 120 corresponds to a specific example of the "information processing device" according to the present disclosure. The control information generator 122 corresponds to a specific example of the "generator" according to the present disclosure. The external device interface 14 corresponds to a specific example of the "connection unit" according to the present disclosure. The set-top box 203 corresponds to a specific example of the "external device" according to the present disclosure. The external device detector 123 corresponds to a specific example of the "acquisition unit" according to the present disclosure.

[0335] Figure 29 An operation example of the display device 120 is shown. In this example, the set-top box 203 has been coupled to the external device interface 14, and the external device detector 123 has detected the coupling of the set-top box 203.

[0336] First, the control unit 121 checks, for example, whether an operation for input switching to an external device has been detected (step S601). Specifically, for example, when the infrared signal received by the infrared receiver 12 indicates the operation input selection button B7, the control unit 121 checks whether an external device is selected as the video source to be displayed after the input switching.

[0337] If an operation for input switching to an external device has been detected in step S601 ( "Yes" in step S601), the switching controller 124 sets the external device as the video source (step S602) and sets the external device as the target to be controlled by the operation terminal 130 (step S603).

[0338] Next, the control information generator 122 generates external device information INF6 corresponding to the coupled external device based on the detection result of the external device detector 123 (step S604). Specifically, for example, when a set-top box is coupled as the external device, the control information generator 122 generates external device information INF6 including information indicating the coupling of the set-top box.

[0339] Then, the control unit 121 transmits control information INF including the external device information INF6 to the operation terminal 130 via the wireless communication unit 13 (step S605). Then, this process ends.

[0340] In addition, if no input switching operation for the display device 120 is detected in step S601 ( "No" in step S601), the switching controller 124 sets the display device 120 as the video source (step S606) and sets the display device 120 as the target to be controlled by the operation terminal 130 (step S607). This process ends here.

[0341] Figure 30 An operation example of the display system 6 is shown in the case where the set-top box 203 is coupled to the display device 120 and input switching to the set-top box 203 is performed.

[0342] When the user operates the input selection button B7 of the operation terminal 130, the control unit 137 of the operation terminal 130 detects this operation, and the control unit 137 changes the operation state of the operation terminal 130 from the sleep state to the normal operation state (step S621). Then, the infrared transmitter 34 emits an infrared signal corresponding to the operation of the input selection button B7 (step S622). The infrared receiver 12 of the display device 120 receives this infrared signal.

[0343] Based on the information including the operation of the input selection button B7 in the infrared signal, the switching controller 124 of the display device 120 sets the set-top box 203 to the video source (step S623), and sets the set-top box 203 as the target to be controlled by the operation terminal 130 (step S624). Then, the control information generator 122 generates external device information INF6 including information indicating the coupling of the set-top box based on the detection result of the external device detector 123 (step S625). The control unit 121 sends the control information INF including the external device information INF6 to the operation terminal 130 via the wireless communication unit 13 (step S626). The control unit 137 of the operation terminal 130 receives the control information INF via the wireless communication unit 35.

[0344] The light emission controller 138 of the operation terminal 130 generates light emission control information INFBL based on the external device information INF6 included in the control information INF (step S627). In this example, since the external device information INF6 includes information indicating the coupling of the set-top box, the light emission controller 138 generates light emission control information INFBL giving an instruction to cause the light emitting device corresponding to the button B for viewing the content provided by the set-top box 203 in the light emitting unit 112 to emit light for a predetermined period. Specifically, the light emission controller 138 generates, for example, light emission control information INFBL giving an instruction to cause the light emitting devices corresponding to the numeric button B3, the cursor button B8, the determination button B9, the return button B10, the channel button B11, the volume button B12, the moving image content operation button B16, and the recording list button B17 to emit light for a predetermined period.

[0345] Next, the light emission controller 138 causes the light emitting unit 112 to start emitting light based on the light emission control information INFBL (step S628). Therefore, the button B for viewing the content provided by the set-top box 203 in the operation unit 31 of the operation terminal 130 is highlighted by the light emitted from the light emitting unit 112. Then, the light emission controller 138 causes the light emitting unit 112 to end emitting light after a predetermined period based on the light emission control information INFBL (step S629). This sequence ends here.

[0346] As described above, in the display system 6, the control information generator 122 of the display device 120 generates the control information INF corresponding to the coupled external device. The light emission controller 138 of the operation terminal 130 controls the light emission operation of the light emitting unit 112 based on the control information INF. Therefore, the display system 6 enables the user to easily understand the available button B when viewing the content provided by the coupled external device. Therefore, the display system 6 can improve the convenience of the user.

[0347] As described above, in the present embodiment, the control information generator of the display device generates control information corresponding to the coupled external device, and the light emission controller of the operation terminal controls the light emission operation of the light emitting unit based on the control information. For example, this enables the user to easily understand the available button B, which can improve the convenience of the user. Other effects are similar to those of the first embodiment.

[0348] [Modification Example 6-1]

[0349] In the above embodiment, the control information INF includes the external device information INF6. However, it is not limited thereto. For example, the control information INF may include the light emission control information INFBL that gives an instruction for the light emission operation of the light emitting unit 112, as in the case of the display system 1A of Modification Example 1-1 according to the first embodiment.

[0350] Although the present technology has been described with reference to some embodiments and modification examples, the present technology is not limited to these embodiments and the like, and various modifications can be made.

[0351] For example, in the above embodiment, the infrared transmitter 34 is provided in the operation terminal, the infrared receiver 12 is provided in the display device, and the operation of the display device is controlled by the operation terminal that sends an infrared signal to the display device. However, it is not limited thereto. Optionally, the infrared transmitter 34 and the infrared receiver 12 can be omitted, and the operation terminal can control the operation of the display device through the communication between the wireless communication unit 35 of the operation terminal and the wireless communication unit 13 of the display device.

[0352] For example, the present technology is applied to the display device in the above embodiment, but it is not limited thereto. For example, the present technology can be applied to various household electronic devices, such as a hard disk recorder, a Blu-ray Disc player, a Blu-ray Disc recorder, a set-top box, a smart speaker, or a game console. Specifically, when the present technology is applied to a set-top box, the operation terminal can be a remote control terminal that controls the operation of the set-top box through remote control based on the user's operation. The display device (e.g., a television receiver) is coupled to the set-top box. In addition, when the present technology is applied to a game console, the operation terminal can be a controller of the game console.

[0353] For example, in the above embodiment, the light emitting device corresponding to the button B emits light. However, it is not limited thereto. For example, a light emitting device not associated with the button B (such as various indicators provided in the operation terminal) can be made to emit light.

[0354] In addition, for example, two or more of the above embodiments and modification examples can be combined with each other.

[0355] It should be noted that the effects described in this specification are illustrative rather than restrictive, and other effects can be provided.

[0356] It should be noted that the present technology can be configured as follows. According to the present technology with the following configuration, the convenience of the user can be improved.

[0357] (1) An information processing device, comprising:

[0358] A generator configured to generate control information for performing light emission control of a light emitting unit provided in an operation terminal; and

[0359] A transmitter configured to transmit the control information to the operation terminal.

[0360] (2) The information processing device according to (1), wherein the light emission control includes controlling one or more of light emission start, light emission end, light emission luminance, light emission color, light emission time, and light emission period.

[0361] (3) The information processing device according to (1) or (2), further comprising: an environment sensor configured to detect the environment of the information processing device, wherein

[0362] The generator is configured to generate the control information based on the detection result of the environment sensor.

[0363] (4) The information processing device according to (3), wherein the environment sensor includes a sensor configured to detect the brightness of the environment.

[0364] (5) The information processing device according to (4), wherein the light emitting unit is configured to emit light based on the control information when the brightness is darker than a predetermined brightness.

[0365] (6) The information processing device according to (4), wherein the light emitting unit is configured to emit light with a first luminance based on the control information when the brightness is a first brightness, and emit light with a second luminance brighter than the first luminance when the brightness is a second brightness darker than the first brightness.

[0366] (7) The information processing device according to any one of (3) to (6), wherein the control information includes the detection result of the environment sensor.

[0367] (8) The information processing device according to (1) or (2), wherein the generator is configured to generate the control information based on the content that is the processing target of the information processing device.

[0368] (9) The information processing device according to (8), further comprising: a content analyzer, wherein

[0369] The content includes metadata,

[0370] The content analyzer is configured to analyze the metadata, and

[0371] The generator is configured to generate control information based on the analysis result of the content analyzer.

[0372] (10) The information processing apparatus according to (8), wherein

[0373] the content includes image information, and

[0374] the generator is configured to generate control information based on the analysis result of the image information.

[0375] (11) The information processing apparatus according to (1) or (2), wherein the generator is configured to generate control information based on the notification information to the user.

[0376] (12) The information processing apparatus according to (11), further comprising: a notification processor configured to generate notification information, wherein

[0377] the control information includes information for causing the light emitting unit to emit light corresponding to a button among a plurality of buttons included in the operation terminal and associated with the notification information presented to the user.

[0378] (13) The information processing apparatus according to (1) or (2), further comprising: a voice processor configured to process voice information received from the user, wherein

[0379] the generator is configured to generate control information based on the processing of the voice processor.

[0380] (14) The information processing apparatus according to (13), wherein

[0381] the voice processor includes a plurality of processors and is configured to select one processor from the plurality of processors in response to an operation of the user, and

[0382] the control information includes information corresponding to the processor selected from the plurality of processors.

[0383] (15) The information processing apparatus according to (1) or (2), further comprising:

[0384] a connection unit capable of being coupled to an external device; and

[0385] an acquisition unit that acquires information related to the function of the external device, wherein

[0386] the generator is configured to generate control information based on the information related to the function of the external device.

[0387] (16) The information processing apparatus according to (15), wherein the control information includes information for causing the light emitting unit to emit light corresponding to a button among a plurality of buttons included in the operation terminal and associated with the operation of the external device.

[0388] (17) An operation terminal, comprising:

[0389] An operation unit configured to receive operations from a user;

[0390] A light-emitting unit configured to emit light from an operation surface of the operation unit;

[0391] A receiver configured to receive control information sent from an information processing device; and

[0392] A controller configured to perform light emission control of the light-emitting unit based on the control information.

[0393] (18) The operation terminal according to (17), wherein the control information includes information corresponding to a detection result of an environment sensor provided in the information processing device and configured to detect the environment of the information processing device.

[0394] (19) The operation terminal according to (17), wherein the control information includes information corresponding to processing by a speech processor provided in the information processing device and configured to process speech information.

[0395] (20) An information processing method, comprising:

[0396] Generating, by the information processing device, control information for performing light emission control of a light-emitting unit provided in an operation terminal;

[0397] Sending, by the information processing device, the control information to the operation terminal; and

[0398] Performing, by the operation terminal, light emission control of the light-emitting unit based on the control information sent from the information processing device.

[0399] This application claims the benefit of Japanese Priority Patent Application No. 2019-100957, filed with the Japan Patent Office on May 30, 2019, and Japanese Priority Patent Application No. 2019-235744, filed with the Japan Patent Office on December 26, 2019, the entire contents of each of which are incorporated herein by reference.

[0400] It should be understood that those skilled in the art can conceive of various modifications, combinations, sub-combinations, and alterations according to design requirements and other factors, as long as such modifications, combinations, sub-combinations, and alterations are within the scope of the appended claims or their equivalents.

Claims

1. An information processing device, comprising: a circuit configured to: generate control information for performing light emission control of light emitted from an operation terminal; and send the control information to the operation terminal; wherein the operation terminal is a remote control terminal, and the remote control terminal controls the operation of the information processing device through remote operation based on a user's operation; wherein the light emission control includes controlling one or more of light emission start, light emission end, light emission luminance, light emission color, light emission time, and light emission period based on the control information; wherein the light emission indicates the availability associated with a streaming service; and wherein the remote control terminal includes buttons for selecting the streaming service, and emits the light indicating the availability associated with the streaming service from a button among the plurality of buttons corresponding to the streaming service.

2. The information processing apparatus according to claim 1, further comprising: an environmental sensor configured to detect the environment of the information processing device, wherein the circuit is configured to generate the control information based on a detection result of the environmental sensor.

3. The information processing apparatus according to claim 2, wherein The environmental sensor includes a sensor configured to detect the brightness of the environment.

4. The information processing apparatus according to claim 3, wherein, The circuit is configured to emit light when the brightness is darker than a predetermined brightness based on the control information.

5. The information processing apparatus according to claim 3, wherein, The circuit is configured to emit light with a first luminance when the brightness is a first brightness, and emit light with a second luminance brighter than the first luminance when the brightness is a second brightness darker than the first brightness based on the control information.

6. The information processing apparatus according to claim 2, wherein, The control information includes a detection result of the environmental sensor.

7. The information processing apparatus according to claim 1, wherein, The circuit is configured to generate the control information based on content that is a processing target of the information processing device.

8. The information processing apparatus according to claim 7, wherein, The content includes metadata, and the circuit is configured to analyze the metadata and generate the control information based on an analysis result of a content analyzer.

9. The information processing apparatus according to claim 7, wherein, The content includes image information, and The circuit is configured to generate the control information based on an analysis result of the image information.

10. The information processing apparatus according to claim 1, wherein, The circuit is configured to generate the control information based on notification information for a user.

11. The information processing apparatus according to claim 10, further comprising: a circuit configured to generate the notification information, wherein the control information includes making the emitted light correspond to information of a button among the plurality of buttons included in the operation terminal that is associated with the notification information presented to the user.

12. The information processing apparatus according to claim 1, wherein, The circuit is configured to process voice information received from a user, and is configured to generate the control information based on the processing of the information.

13. The information processing device according to claim 12, wherein the voice information processing circuit includes a plurality of processors and is configured to select one processor from the plurality of processors in response to an operation of the user, and the control information includes information corresponding to the processor selected from the plurality of processors.

14. The information processing device according to claim 1, further comprising: a circuit capable of being coupled to an external device; and a circuit for acquiring information related to the function of the external device, wherein the circuit is configured to generate the control information based on the information related to the function of the external device.

15. The information processing apparatus according to claim 14, wherein, The control information includes information that causes the emitted light to correspond to information of a button among a plurality of buttons included in the operation terminal and associated with the operation of the external device.

16. The information processing apparatus according to claim 1, wherein, The availability associated with the streaming service is new content availability.

17. An operation terminal, comprising: a circuit configured to: receive a user operation; emit light from an operation surface of an operation unit; receive control information sent from an information processing device; and perform light emission control of the light emitted from the operation terminal based on the control information; wherein the information processing device is an information processing device selected from the group consisting of a television and a set-top box for a television, and the operation terminal is a remote control terminal that remotely controls the operation of the information processing device based on the user operation; wherein the light emission control includes controlling one or more of light emission start, light emission end, light emission luminance, light emission color, light emission time, and light emission period based on the control information; wherein the light emission indicates the availability associated with the streaming service; and wherein the remote control terminal includes a button for selecting the streaming service, and emits the light indicating the availability associated with the streaming service from a button among the plurality of buttons corresponding to the streaming service.

18. The operating terminal according to claim 17, wherein, The control information includes information corresponding to a detection result of an environmental sensor provided in the information processing device and configured to detect the environment of the information processing device.

19. The operating terminal according to claim 17, wherein, The control information includes information corresponding to processing by a voice processor provided in the information processing device and configured to process voice information.

20. The operating terminal according to claim 17, wherein, The availability associated with the streaming service is new content availability.

21. An information processing method, comprising: generating, by an information processing device, control information for performing light emission control of a light emitting unit provided in an operation terminal; sending, by the information processing device, the control information to the operation terminal; and performing, by the operation terminal, the light emission control of the light emitting unit based on the control information sent from the information processing device; wherein the operation terminal is a remote control terminal that remotely controls the operation of the information processing device based on a user operation; wherein the light emission control includes controlling one or more of light emission start, light emission end, light emission luminance, light emission color, light emission time, and light emission period based on the control information; wherein the light emission indicates the availability associated with the streaming service; and wherein the remote control terminal includes a button for selecting the streaming service, and emits the light indicating the availability associated with the streaming service from a button among the plurality of buttons corresponding to the streaming service.

22. The information processing method according to claim 21, wherein, The availability associated with the streaming service is new content availability.

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