Display device and display system

Abstract

A display device according to an embodiment of the present disclosure comprises: a display; an infrared (IR) receiver that receives an IR signal from a remote control device; a wireless communication interface that receives a radio frequency (RF) signal from the remote control device; and a controller that, when the display device is wirelessly connected to the remote control device while the power to the display device is off, receives an RF power signal or an IR power signal from the remote control device, depending on whether the display device supports an RF power control function that controls power using an RF power signal, and controls the power of the display device in response to the received signal.

Description

Display device and display system

[0001] The present disclosure relates to controlling the power of a display device through an IR signal or an RF signal output from a remote control device.

[0002] Digital TV services using wired or wireless communication networks are becoming commonplace. Digital TV services can provide a variety of services that were not available through existing analog broadcasting services.

[0003] For example, digital TV services such as IPTV (Internet Protocol Television) and smart TV services provide interactivity that allows users to actively select the types of programs and viewing time. Based on this interactivity, IPTV and smart TV services can also provide various additional services, such as internet search, home shopping, and online games.

[0004] These TVs are controlled remotely via a remote control device.

[0005] Conventionally, users controlled devices such as the TV power using an IR-based key equipped on a remote control device.

[0006] However, due to the directional issues of the IR signals output by the remote control device, there were cases where the user could not control the device they intended to control or ended up controlling unnecessary devices, resulting in poor usability.

[0007] The purpose of the present disclosure may be to easily control the power of a display device by simply pressing a power button, regardless of the direction of the remote control device.

[0008] The purpose of the present disclosure may be to prevent the problem of the power of a display device being turned on and off by receiving an RF power signal and an IR power signal together.

[0009] The purpose of the present disclosure may be to prevent in advance the problem of the power of a display device not being controlled due to the directional problem of the IR signal.

[0010] A display device according to an embodiment of the present disclosure may include: a display; an IR receiver that receives an IR signal from a remote control device; a wireless communication interface that receives an RF signal from the remote control device; and a controller that receives an RF power signal or an IR power signal from the remote control device based on whether the display device supports an RF power control function that controls power through an RF power signal when the display device is wirelessly connected to the remote control device while the power of the display device is off, and controls the power of the display device according to the received signal.

[0011] In a display system comprising a display device and a remote control device according to an embodiment of the present disclosure, the remote control device transmits an IR signal or an RF signal to the display device, and when the display device is wirelessly connected to the remote control device while the power of the display device is off, the display device receives an RF power signal or an IR power signal from the remote control device based on whether the display device supports an RF power control function that controls power through the RF signal, and can control the power of the display device according to the received signal.

[0012] According to various embodiments of the present disclosure, a user can easily control the power of a display device by simply pressing a power button, regardless of the direction of the remote control device.

[0013] According to various embodiments of the present disclosure, a display device may receive only one of an RF power signal or an IR power signal from a remote control device while wirelessly connected to the remote control device. Accordingly, the problem of the power of the display device being turned on and then off by receiving both the RF power signal and the IR power signal together can be prevented.

[0014] In addition, according to various embodiments of the present disclosure, when a display device supports an RF power control function, the power can be turned on upon receiving an RF power signal from a remote control device. Accordingly, the problem of the power of the display device not being controlled due to the directivity of the IR signal can be prevented in advance.

[0015] FIG. 1 is a block diagram illustrating the configuration of a display device according to one embodiment of the present invention.

[0016] FIG. 2 is a block diagram of a remote control device according to one embodiment of the present invention.

[0017] FIG. 3 shows an example of the actual configuration of a remote control device according to one embodiment of the present invention.

[0018] Figure 4 shows an example of utilizing a remote control device according to an embodiment of the present invention.

[0019] Figure 5 is a diagram illustrating a problem caused by the directivity issue of the IR power signal when the power of the display device is off according to the prior art.

[0020] FIG. 6 is a diagram illustrating the problem that occurs when an IR power signal and an RF power signal are received while the power mode of a display device is in a low power mode according to the prior art.

[0021] FIG. 7 is a sequence diagram for explaining the operation method of a display system according to one embodiment of the present disclosure.

[0022] FIG. 8 is a diagram illustrating the process of controlling the power of a display device through an RF power signal when the display device supports an RF power control function according to one embodiment of the present disclosure.

[0023] FIG. 9 is a diagram illustrating the process of controlling the power of a display device through an IR power signal when the display device does not support an RF power control function according to one embodiment of the present disclosure.

[0024] Hereinafter, embodiments related to the present invention will be described in more detail with reference to the drawings. The suffixes "module" and "part" for components used in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently have distinct meanings or roles.

[0025] A display device according to an embodiment of the present invention is, for example, an intelligent display device that adds computer support functions to a broadcast reception function. While faithful to the broadcast reception function, it also adds internet functions, and can be equipped with a more user-friendly interface such as a handwriting input device, a touch screen, or a spatial remote control. Furthermore, by supporting wired or wireless internet functions, it can be connected to the internet and a computer, and can perform functions such as email, web browsing, banking, or games. A standardized general-purpose OS may be used for these various functions.

[0026] Accordingly, the display device described in the present invention allows various applications to be freely added or removed, for example, on a general-purpose OS kernel, thereby enabling various user-friendly functions to be performed. More specifically, the display device may be, for example, a network TV, HBB TV, smart TV, LED TV, OLED TV, etc., and may also be applicable to smartphones depending on the circumstances.

[0027] FIG. 1 is a block diagram illustrating the configuration of a display device according to one embodiment of the present invention.

[0028] Referring to FIG. 1, the display device (100) may include a video receiver (130), an external device interface (135), a memory (140), a user input interface (150), a controller (170), a wireless communication interface (173), a display (180), a speaker (185), and a power supply circuit (190).

[0029] The video receiver (130) may include a tuner (131), a demodulator (132), and a network interface (133).

[0030] The tuner (131) can tune to a specific broadcast channel according to a channel tuning command. The tuner (131) can receive a broadcast signal for the tuned specific broadcast channel.

[0031] The demodulator (132) can separate the received broadcast signal into a video signal, an audio signal, and a data signal related to the broadcast program, and can restore the separated video signal, audio signal, and data signal into a form that can be output.

[0032] The external device interface (135) can receive an application or a list of applications within an adjacent external device and transmit it to the controller (170) or memory (140).

[0033] The external device interface (135) can provide a connection path between the display device (100) and an external device. The external device interface (135) can receive one or more of video and audio output from an external device connected to the display device (100) wirelessly or via a wired connection, and transmit them to the controller (170). The external device interface (135) may include a plurality of external input terminals. The plurality of external input terminals may include an RGB terminal, one or more HDMI (High Definition Multimedia Interface) terminals, and a component terminal.

[0034] The video signal of an external device input through the external device interface (135) can be output through the display (180). The audio signal of an external device input through the external device interface (135) can be output through the speaker (185).

[0035] The external device that can be connected to the external device interface (135) may be any one of a set-top box, Blu-ray player, DVD player, game console, soundbar, smartphone, PC, USB memory, or home theater, but this is merely an example.

[0036] The network interface (133) may provide an interface for connecting the display device (100) to a wired / wireless network including the Internet network. The network interface (133) may transmit or receive data to or from other users or other electronic devices through the connected network or another network linked to the connected network.

[0037] In addition, some of the content data stored in the display device (100) can be transmitted to another user or other electronic device selected among other users or other electronic devices that are previously registered in the display device (100).

[0038] The network interface (133) can access a specific web page through a connected network or another network linked to the connected network. That is, it can access a specific web page through a network and transmit or receive data with the corresponding server.

[0039] Additionally, the network interface (133) can receive content or data provided by a content provider or network operator. That is, the network interface (133) can receive content such as movies, advertisements, games, VOD, broadcast signals, and related information provided by a content provider or network provider through a network.

[0040] Additionally, the network interface (133) can receive firmware update information and update files provided by the network operator, and can transmit data to the internet or a content provider or network operator.

[0041] The network interface (133) can select and receive a desired application among the applications that are open to the public through the network.

[0042] The memory (140) can store programs for each signal processing and control within the controller (170), and can store signal-processed video, audio, or data signals.

[0043] Additionally, the memory (140) may perform the function of temporarily storing video, audio, or data signals input from an external device interface (135) or a network interface (133), and may also store information regarding a predetermined image through a channel memory function.

[0044] The memory (140) can store an application or a list of applications input from an external device interface (135) or a network interface (133).

[0045] The display device (100) can play content files (video files, still image files, music files, document files, application files, etc.) stored in memory (140) and provide them to the user.

[0046] The user input interface (150) can transmit a signal input by the user to the controller (170) or transmit a signal from the controller (170) to the user. For example, the user input interface (150) can receive and process control signals such as power on / off, channel selection, and screen setting from the remote control device (200) according to various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee, Radio Frequency (RF) communication, or Infrared (IR) communication, or process to transmit control signals from the controller (170) to the remote control device (200).

[0047] Additionally, the user input interface (150) can transmit control signals input from local keys (not shown), such as power key, channel key, volume key, and setting value, to the controller (170).

[0048] The image signal processed by the controller (170) can be input to the display (180) and displayed as an image corresponding to the image signal. Additionally, the image signal processed by the controller (170) can be input to an external output device through the external device interface (135).

[0049] The voice signal processed by the controller (170) can be output as audio to the speaker (185). Additionally, the voice signal processed by the controller (170) can be input to an external output device through the external device interface (135).

[0050] In addition, the controller (170) can control the overall operation within the display device (100).

[0051] Additionally, the controller (170) can control the display device (100) by means of user commands or internal programs entered through the user input interface (150), and can connect to a network to allow the user to download an application or a list of applications desired by the user into the display device (100).

[0052] The controller (170) enables the processed video or audio signal, such as channel information selected by the user, to be output through the display (180) or speaker (185).

[0053] Additionally, the controller (170) enables a video signal or audio signal from an external device, such as a camera or camcorder, input through the external device interface (135) according to an external device video playback command received through the user input interface (150), to be output through the display (180) or speaker (185).

[0054] Meanwhile, the controller (170) can control the display (180) to display video, for example, broadcast video input through the tuner (131), external input video input through the external device interface (135), video input through the network interface, or video stored in the memory (140) can be controlled to be displayed on the display (180). In this case, the video displayed on the display (180) may be a still image or a video, and may be a 2D image or a 3D image.

[0055] Additionally, the controller (170) can control the playback of content stored in the display device (100), received broadcast content, or external input content input from the outside, and the content may be in various forms such as broadcast video, external input video, audio file, still image, connected web screen, and document file.

[0056] The wireless communication interface (173) can communicate with an external device via wired or wireless communication. The wireless communication interface (173) can perform short-range communication with an external device. To this end, the wireless communication interface (173) can support short-range communication by using at least one of Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (Wireless USB) technologies. Such wireless communication interface (173) can support wireless communication between the display device (100) and a wireless communication system, between the display device (100) and another display device (100), or between the display device (100) and a network where the display device (100, or an external server) is located, through wireless area networks. Short-range wireless communication networks can be Wireless Personal Area Networks.

[0057] Here, another display device (100) may be a mobile terminal such as a wearable device (e.g., a smartwatch, smart glass, HMD (head mounted display)), a smartphone, etc., capable of exchanging data with (or interacting with) the display device (100) according to the present invention. The wireless communication interface (173) may detect (or recognize) a wearable device capable of communicating around the display device (100).

[0058] Furthermore, if the detected wearable device is a device authenticated to communicate with the display device (100) according to the present invention, the controller (170) can transmit at least a portion of the data processed in the display device (100) to the wearable device through the wireless communication interface (173). Accordingly, the user of the wearable device can use the data processed in the display device (100) through the wearable device.

[0059] The display (180) can generate a driving signal by converting the video signal, data signal, OSD signal processed by the controller (170) or the video signal, data signal, etc. received from the external device interface (135) into R, G, and B signals, respectively.

[0060] Meanwhile, since the display device (100) illustrated in FIG. 1 is merely an embodiment of the present invention, some of the illustrated components may be integrated, added, or omitted depending on the specifications of the actual implemented display device (100).

[0061] That is, as needed, two or more components may be combined into a single component, or a single component may be subdivided into two or more components. In addition, the functions performed in each block are intended to explain embodiments of the present invention, and the specific operations or devices thereof do not limit the scope of the present invention.

[0062] According to another embodiment of the present invention, the display device (100) may receive and play video through a network interface (133) or an external device interface (135) without having a tuner (131) and a demodulator (132), unlike as shown in FIG. 1.

[0063] For example, the display device (100) may be implemented by separating it into a video processing device, such as a set-top box, for receiving broadcast signals or content according to various network services, and a content playback device for playing content input from the video processing device.

[0064] In this case, the operation method of the display device according to the embodiment of the present invention described below may be performed not only by the display device (100) described with reference to FIG. 1, but also by any one of the image processing device such as the separated set-top box, or a content playback device having a display (180) and a speaker (185).

[0065] Next, with reference to FIGS. 2 and 3, a remote control device according to an embodiment of the present invention will be described.

[0066] FIG. 2 is a block diagram of a remote control device according to one embodiment of the present invention, and FIG. 3 shows an example of the actual configuration of a remote control device (200) according to one embodiment of the present invention.

[0067] First, referring to FIG. 2, the remote control device (200) may include a fingerprint reader (210), a wireless communication circuit (220), a user input interface (230), a sensor (240), an output interface (250), a power supply circuit (260), a memory (270), a controller (280), and a microphone (290).

[0068] Referring to FIG. 2, the wireless communication circuit (220) transmits and receives signals with any one of the display devices according to the embodiments of the present invention described above.

[0069] The remote control device (200) is equipped with an RF circuit (221) capable of transmitting and receiving signals to and from the display device (100) according to RF communication standards, and may be equipped with an IR circuit (223) capable of transmitting and receiving signals to and from the display device (100) according to IR communication standards. Additionally, the remote control device (200) may be equipped with a Bluetooth circuit (225) capable of transmitting and receiving signals to and from the display device (100) according to Bluetooth communication standards. Furthermore, the remote control device (200) may be equipped with an NFC circuit (227) capable of transmitting and receiving signals to and from the display device (100) according to NFC (Near Field Communication) communication standards, and may be equipped with a WLAN circuit (229) capable of transmitting and receiving signals to and from the display device (100) according to WLAN (Wireless LAN) communication standards.

[0070] Additionally, the remote control device (200) transmits a signal containing information regarding the movement of the remote control device (200), etc., to the display device (100) through a wireless communication circuit (220).

[0071] Meanwhile, the remote control device (200) can receive a signal transmitted by the display device (100) through the RF circuit (221), and, if necessary, can transmit commands regarding power on / off, channel change, volume change, etc. to the display device (100) through the IR circuit (223).

[0072] The user input interface (230) may be composed of a keypad, buttons, a touchpad, or a touch screen. The user can input commands related to the display device (100) to the remote control device (200) by operating the user input interface (230). If the user input interface (230) is equipped with a hard key button, the user can input commands related to the display device (100) to the remote control device (200) through a push operation of the hard key button. This will be explained with reference to FIG. 3.

[0073] Referring to FIG. 3, the remote control device (200) may include a plurality of buttons. The plurality of buttons may include a fingerprint recognition button (212), a power button (231), a home button (232), a live button (233), an external input button (234), a volume control button (235), a voice recognition button (236), a channel change button (237), a confirmation button (238), and a back button (239).

[0074] The fingerprint recognition button (212) may be a button for recognizing a user's fingerprint. In one embodiment, the fingerprint recognition button (212) may be capable of a push operation and may receive a push operation and a fingerprint recognition operation.

[0075] The power button (231) may be a button for turning the power of the display device (100) on / off.

[0076] The home button (232) may be a button for moving to the home screen of the display device (100).

[0077] The live button (233) may be a button for displaying a live broadcast program.

[0078] The external input button (234) may be a button for receiving an external input connected to the display device (100).

[0079] The volume control button (235) may be a button for adjusting the volume output by the display device (100).

[0080] The voice recognition button (236) may be a button for receiving the user's voice and recognizing the received voice.

[0081] The channel change button (237) may be a button for receiving a broadcast signal of a specific broadcast channel.

[0082] The confirmation button (238) may be a button for selecting a specific function, and the back button (239) may be a button for returning to the previous screen.

[0083] Figure 2 is explained again.

[0084] If the user input interface (230) is equipped with a touchscreen, the user can input commands related to the display device (100) to the remote control device (200) by touching the soft keys on the touchscreen. Additionally, the user input interface (230) may be equipped with various types of input means that the user can operate, such as scroll keys or jog keys, and this embodiment does not limit the scope of the present invention.

[0085] The sensor (240) may be equipped with a gyroscope sensor (241) or an accelerometer sensor (243), and the gyroscope sensor (241) may sense information regarding the movement of the remote control device (200).

[0086] For example, the gyroscope sensor (241) can sense information regarding the operation of the remote control device (200) based on the x, y, and z axes, and the accelerometer sensor (243) can sense information regarding the movement speed of the remote control device (200). Meanwhile, the remote control device (200) may further be equipped with a distance measuring sensor to sense the distance to the display (180) of the display device (100).

[0087] The output interface (250) can output a video or audio signal corresponding to the operation of the user input interface (230) or a signal transmitted from the display device (100).

[0088] The user can recognize whether the output interface (250) is operated by the user input interface (230) or whether the display device (100) is controlled.

[0089] For example, the output interface (250) may be equipped with an LED (251) that lights up when the user input interface (230) is operated or when a signal is transmitted or received with the display device (100) through the wireless communication circuit (220), a vibrator (253) that generates vibration, a speaker (255) that outputs sound, or a display (257) that outputs video.

[0090] Additionally, the power supply circuit (260) supplies power to the remote control device (200), and can reduce power waste by stopping the power supply when the remote control device (200) does not move for a predetermined period of time.

[0091] The power supply circuit (260) can resume power supply when a predetermined key provided in the remote control device (200) is operated.

[0092] The memory (270) can store various types of programs, application data, etc. required for the control or operation of the remote control device (200).

[0093] When the remote control device (200) transmits and receives signals wirelessly through the RF circuit (221) and the display device (100), the remote control device (200) and the display device (100) transmit and receive signals through a predetermined frequency band.

[0094] The controller (280) of the remote control device (200) can store and refer to information regarding frequency bands, etc., that can wirelessly transmit and receive signals with the display device (100) paired with the remote control device (200) in the memory (270).

[0095] The controller (280) controls all matters related to the control of the remote control device (200). The controller (280) can transmit a signal corresponding to a predetermined key operation of the user input interface (230) or a signal corresponding to the movement of the remote control device (200) sensed by the sensor (240) to the display device (100) through the wireless communication circuit (220).

[0096] In addition, the microphone (290) of the remote control device (200) can acquire voice.

[0097] The microphone (290) may be provided in multiple numbers.

[0098] Next, Figure 4 is explained.

[0099] Figure 4 shows an example of utilizing a remote control device according to an embodiment of the present invention.

[0100] FIG. 4(a) illustrates a pointer (205) corresponding to a remote control device (200) being displayed on a display (180).

[0101] The user can move or rotate the remote control device (200) up and down, left and right. The pointer (205) displayed on the display (180) of the display device (100) corresponds to the movement of the remote control device (200). Since the pointer (205) of the remote control device (200) moves and is displayed according to the movement in 3D space as shown in the drawing, it can be named a spatial remote control.

[0102] FIG. 4(b) illustrates that when the user moves the remote control device (200) to the left, the pointer (205) displayed on the display (180) of the display device (100) also moves to the left in response.

[0103] Information regarding the movement of the remote control device (200) detected through the sensor of the remote control device (200) is transmitted to the display device (100). The display device (100) can calculate the coordinates of the pointer (205) from the information regarding the movement of the remote control device (200). The display device (100) can display the pointer (205) to correspond to the calculated coordinates.

[0104] FIG. 4(c) illustrates a case where, while pressing a specific button within the remote control device (200), the user moves the remote control device (200) away from the display (180). By doing so, the selected area within the display (180) corresponding to the pointer (205) can be zoomed in and enlarged.

[0105] Conversely, when the user moves the remote control device (200) closer to the display (180), the selected area within the display (180) corresponding to the pointer (205) can be zoomed out and reduced in size.

[0106] Meanwhile, when the remote control device (200) moves away from the display (180), the selected area may be zoomed out, and when the remote control device (200) moves closer to the display (180), the selected area may be zoomed in.

[0107] Additionally, when a specific button within the remote control device (200) is pressed, recognition of up-down and left-right movement may be excluded. That is, when the remote control device (200) moves away from or closer to the display (180), up-down, left-right movement is not recognized, and only forward-backward movement is recognized. When the specific button within the remote control device (200) is not pressed, only the pointer (205) moves according to the up-down, left-right movement of the remote control device (200).

[0108] Meanwhile, the movement speed or direction of movement of the pointer (205) can correspond to the movement speed or direction of movement of the remote control device (200).

[0109] Meanwhile, the pointer in this specification refers to an object displayed on the display (180) in response to the operation of the remote control device (200). Accordingly, the pointer (205) can be an object of various shapes other than the arrow shape shown in the drawing. For example, it may be a concept including a point, a cursor, a prompt, a thick outline, etc. Furthermore, the pointer (205) can be displayed corresponding to either a point on the horizontal axis or a vertical axis on the display (180), and it is also possible to display it corresponding to multiple points, such as a line or a surface.

[0110] Figure 5 is a diagram illustrating a problem caused by the directivity issue of the IR power signal when the power of the display device is off according to the prior art.

[0111] The display device (100) may include an IR receiver (151) capable of receiving an IR signal. The IR receiver (151) may be included in a user input interface (150).

[0112] The user presses the power button via the remote control device (200) while the power of the display device (100) is off.

[0113] When the remote control device (200) is at position A, the IR signal output from the remote control device (200) according to the selection of the power button is transmitted to the IR receiver (151). The display device (100) can turn on the power upon receiving the IR signal.

[0114] When the remote control device (200) is at position B, the IR signal output from the remote control device (200) depending on the selection of the power button may not be transmitted to the IR receiver (151) due to a directional problem.

[0115] The display device (100) cannot receive an IR signal and does not turn on the power.

[0116] That is, when a power signal is transmitted via an IR signal, the user may experience inconvenience because the IR signal is not properly transmitted due to a directional problem where the direction between the remote control device (200) and the IR receiver (151) does not match.

[0117] In addition, if a device such as a sound bar is present at the bottom of the display device (100) and blocks the IR receiver (151), the IR signal may not be transmitted properly.

[0118] FIG. 6 is a diagram illustrating the problem that occurs when an IR power signal and an RF power signal are received while the power mode of a display device is in a low power mode according to the prior art.

[0119] The power modes of the display device (100) may include a normal power mode, a low power mode, and a power off mode.

[0120] The general power mode may be a mode in which power is consumed so that the display device (100) can use all functions.

[0121] The low power mode may be a mode for minimizing power consumption by operating only some functions of the display device (100). The low power mode may include an AOD (Always On Display) mode that displays low-capacity information when the power is off, and a screen off mode that does not display any information.

[0122] The low power mode may be a mode in which not all applications installed on the display device (100) are running, or a mode in which only a very small number of applications are running.

[0123] The power off mode may be a mode in which the power supply to the display device (100) is completely cut off.

[0124] Under low power mode, the display device (100) can perform short-range wireless communication with the remote control device (200). The display device (100) can wirelessly exchange signals with the remote control device (200) through Bluetooth communication standards.

[0125] The user presses the power button of the remote control device (200) while the display device (100) is in low power mode. The remote control device (200) transmits an IR power signal and an RF power signal to the display device (100). The display device (100) can be turned on by the IR power signal and then turned off again by the RF power signal.

[0126] That is, in low power mode, the display device (100) is connected via Bluetooth to the remote control device (200), so the effect of the power key being pressed twice occurs upon input of the power button.

[0127] Accordingly, there is a problem in that the user's intention to turn on the power of the display device (100) is not reflected.

[0128] FIG. 7 is a sequence diagram for explaining the operation method of a display system according to one embodiment of the present disclosure.

[0129] In the following, it is assumed that the display device (100) is in a low power mode.

[0130] Additionally, the power signal described below uses the power-on signal as an example, but it can also be applied to the power-off signal.

[0131] Referring to FIG. 7, the controller (170) of the display device (100) can determine whether it is wirelessly connected to the remote control device (200) (S701).

[0132] The wireless communication interface (173) of the display device (100) may be equipped with a Bluetooth communication circuit.

[0133] The controller (170) can determine whether it is connected via Bluetooth to the remote control device (200) through a Bluetooth communication circuit.

[0134] When it is determined that the controller (170) of the display device (100) is wirelessly connected to the remote control device (200), it can transmit RF power control information to the remote control device (200) through the wireless communication interface (173) (S703).

[0135] In one embodiment, RF power control information may be information indicating whether it supports an RF power control function that controls power through an RF signal. If the RF power control information is 0, the display device (100) may indicate that it does not support an RF power control function. If the RF power control information is 1, the display device (100) may indicate that it supports an RF power control function.

[0136] The controller (280) of the remote control device (200) can determine whether the display device (100) supports an RF power control function that can control power through an RF signal based on RF power control information received from the display device (100) (S705).

[0137] In one embodiment, the controller (280) of the remote control device (200) can parse RF power control information to determine whether the display device (100) supports RF power control functions.

[0138] In another embodiment, the controller (280) of the remote control device (200) may determine that the display device (100) supports an RF power control function if it receives RF power control information within a preset time after wirelessly connecting with the display device (100).

[0139] In another embodiment, if the controller (280) of the remote control device (200) does not receive RF power control information within a preset time after wirelessly connecting with the display device (100), it may determine that the display device (100) does not support the RF power control function.

[0140] When the controller (280) of the remote control device (200) determines that the display device (100) supports an RF power control function, it can transmit an RF power signal to the display device (100) through the wireless communication circuit (220) (S707).

[0141] The controller (280) of the remote control device (200) can generate an RF power signal to turn on the power of the display device (100) according to an input selecting the power button (231) when it is determined that the display device (100) supports an RF power control function.

[0142] The controller (170) of the display device (100) can receive an RF power signal through a wireless communication interface (173) and can turn on the power of the display device (100) according to the received RF power signal (S709).

[0143] If the controller (280) of the remote control device (200) determines that the display device (100) does not support RF power control, it can transmit an IR power signal to the display device (100) through the wireless communication circuit (220) (S711).

[0144] The controller (280) of the remote control device (200) can generate an IR power signal to turn on the power of the display device (100) according to an input selecting the power button (231) when it is determined that the display device (100) does not support RF power control functions.

[0145] The controller (170) of the display device (100) can receive an IR power signal through the user input interface (150) and can turn on the power of the display device (100) according to the received IR power signal (S713).

[0146] Thus, according to an embodiment of the present disclosure, the display device (100) can receive only one of an RF power signal or an IR power signal from the remote control device (200) while wirelessly connected to the remote control device (200).

[0147] Accordingly, the problem of the power turning on and off can be prevented by receiving RF power signals and IR power signals together as in the conventional method.

[0148] Additionally, if the display device (100) supports an RF power control function, the power can be turned on upon receiving an RF power signal from the remote control device (200). Accordingly, the problem of the display device (100) not turning on due to the directional problem of the IR signal can be prevented in advance.

[0149] Meanwhile, if it is determined that the controller (170) of the display device (100) is not wirelessly connected to the remote control device (200), it can receive an IR power signal from the remote control device (200) through the user input interface (150) (S715), and can turn on the power according to the received IR power signal (S717).

[0150] FIG. 8 is a diagram illustrating the process of controlling the power of a display device through an RF power signal when the display device supports an RF power control function according to one embodiment of the present disclosure.

[0151] In FIG. 8, it is assumed that the display device (100) is in AOD mode among low power modes.

[0152] In FIG. 8, the display device (100) and the remote control device (200) may be connected via Bluetooth communication (S801).

[0153] The display device (100) can transmit a command to the remote control device (200) indicating that an RF power control function is available (S803). The command indicating that an RF power control function is available may be included in the RF power control information described in step S703 of FIG. 7.

[0154] A command indicating that RF power control functionality is possible. When transmitting a power control signal according to the Bluetooth communication standard, it may be a command requesting transmission via an RF signal.

[0155] The remote control device (200) can transmit a response corresponding to the received command to the display device (100) (S805). The response corresponding to the received command may include a message indicating that the power control signal of the display device (100) will be transmitted as an RF signal in the future. The response corresponding to the received command may be a type of ack. The response may be referred to as a response command.

[0156] The response may indicate that it will be transmitted as an RF signal when transmitting a power control signal.

[0157] The remote control device (200) can generate an RF power signal according to the input selecting the power button (231) and can transmit the generated RF power signal to the display device (100) (S807).

[0158] The display device (100) can turn on power according to an RF power signal received through a Bluetooth communication circuit (not shown). When the power is turned on, the display device (100) can switch the screen displaying low-capacity information (600) to the home screen. When the power is turned on, the display device (100) can switch the power mode from AOD mode to normal power mode.

[0159] Conventionally, a user had to use an IR signal to turn on the power of a display device (100). In an embodiment of the present disclosure, the display device (100) is equipped with an RF power control function so that the power of the display device (100) can be turned on according to an RF power signal.

[0160] Accordingly, the user can turn on the power of the display device (100) through an RF power signal without having to point the remote control device (200) toward the IR receiver (151).

[0161] Additionally, since the soundbar is positioned at the bottom of the display (180), the IR receiver (151) may be obscured, but the power of the display device (100) can be turned on via an RF power signal.

[0162] FIG. 9 is a diagram illustrating the process of controlling the power of a display device through an IR power signal when the display device does not support an RF power control function according to one embodiment of the present disclosure.

[0163] In FIG. 9, it is assumed that the display device (100) is in AOD mode among low power modes.

[0164] In FIG. 9, the display device (100) and the remote control device (200) may be connected via Bluetooth communication (S901).

[0165] The remote control device (200) can wait for a command from the display device (100) indicating that RF power control is possible (S903).

[0166] If the remote control device (200) does not receive a command indicating that RF power control is possible from the display device (100) within a preset time, it may determine that the display device (100) does not support the RF power control function.

[0167] Accordingly, the remote control device (200) can generate an IR power signal based on an input selecting the power button (231), and can transmit the generated IR power signal to the display device (100) (S905).

[0168] The display device (100) can turn on the power according to the IR power signal received through the IR receiver (151). When the power is turned on, the display device (100) can switch the screen displaying low-capacity information (600) to the home screen. When the power is turned on, the display device (100) can switch the power mode from AOD mode to normal power mode.

[0169] A display device (100) according to an embodiment of the present disclosure may include: a display (180); an IR receiver (151) that receives an IR signal from a remote control device (200); a wireless communication interface (173) that receives an RF signal from the remote control device; and a controller (170) that receives an RF power signal or an IR power signal from the remote control device based on whether the display device supports an RF power control function that controls power through an RF power signal when the display device is wirelessly connected to the remote control device while the power of the display device is off, and controls the power of the display device according to the received signal.

[0170] The above controller (170) can transmit RF power control information indicating whether the RF power control function is supported to the remote control device through the wireless communication interface.

[0171] The above controller (170) can turn on the power of the display device by receiving the RF power signal from the remote control device based on supporting the RF power control function, and can turn on the power of the display device by receiving the IR power signal from the remote control device based on not supporting the RF power control function.

[0172] The controller (170) can turn on the power of the display device by receiving the IR power signal from the remote control device when the display device is not wirelessly connected to the remote control device.

[0173] The state in which the power of the above display device is off may be a state in which the power mode of the above display device operates in a low power mode.

[0174] The above low power mode may be an AOD (Always On Display) mode that displays low-capacity information on the display.

[0175] When the above controller (170) indicates that the RF power control information supports the RF power control function, it can receive a response command from the remote control device through the wireless communication interface that responds to the transmission of the RF power control information.

[0176] The above wireless communication interface (173) may include a Bluetooth communication circuit that performs Bluetooth communication with the remote control device.

[0177] In a display system comprising a display device (100) and a remote control device (200), the remote control device transmits an IR signal or an RF signal to the display device, and when the display device is wirelessly connected to the remote control device while the power of the display device is off, the display device receives an RF power signal or an IR power signal from the remote control device based on whether the display device supports an RF power control function that controls power through the RF signal, and can control the power of the display device according to the received signal.

[0178] According to one embodiment of the present disclosure, the above-described method can be implemented as code that is readable by a processor on a medium on which a program is recorded. Examples of media that are readable by a processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

[0179] The display device described above is not limited to the configuration and method of the embodiments described above; rather, all or part of each embodiment may be selectively combined to allow for various modifications to be made.

Claims

1. In a display device, display; An IR receiver that receives an IR (InfraRed) signal from a remote control device; A wireless communication interface that receives an RF (Radio Frequency) signal from the above remote control device; and A controller comprising, when the power of the display device is off and the display device is wirelessly connected to the remote control device, receiving an RF power signal or an IR power signal from the remote control device based on whether the display device supports an RF power control function that controls power via an RF power signal, and controlling the power of the display device according to the received signal. Display device.

2. In Paragraph 1, The above controller Transmitting RF power control information indicating whether the RF power control function is supported to the remote control device through the above wireless communication interface Display device.

3. In Paragraph 2, The above controller Based on supporting the above RF power control function, the power of the display device is turned on upon receiving the RF power signal from the remote control device, and Turning on the power of the display device upon receiving an IR power signal from the remote control device based on the fact that the above RF power control function is not supported. Display device.

4. In Paragraph 1, The above controller If the display device is not wirelessly connected to the remote control device, the power of the display device is turned on upon receiving the IR power signal from the remote control device. Display device.

5. In Paragraph 1, The state in which the power of the above display device is off is a state in which the power mode of the above display device operates in low power mode. Display device.

6. In Paragraph 5, The above low-power mode is An AOD (Always On Display) mode that displays low-capacity information on the above display Display device.

7. In Paragraph 2, The above controller When the above RF power control information indicates that it supports the RF power control function, it receives a response command from the remote control device via the wireless communication interface that responds to the transmission of the RF power control information. Display device.

8. In Paragraph 1, The above wireless communication interface is A Bluetooth communication circuit that performs Bluetooth communication with the above-mentioned remote control device Display device.

9. In a display system including a display device and a remote control device, The above remote control device Transmitting an IR signal or an RF signal to the display device, and The above display device When the power of the display device is off and the display device is wirelessly connected to the remote control device, the display device receives an RF power signal or an IR power signal from the remote control device based on whether the display device supports an RF power control function that controls power through the RF signal, and controls the power of the display device according to the received signal. Display system.

10. In Paragraph 9, The above display device Transmitting RF power control information indicating whether the above RF power control function is supported to the remote control device Display system.

11. In Paragraph 10, The above display device Based on supporting the above RF power control function, the power of the display device is turned on upon receiving the RF power signal from the remote control device, and Turning on the power of the display device upon receiving an IR power signal from the remote control device based on the fact that the above RF power control function is not supported. Display system.

12. In Paragraph 9, The above display device If the display device is not wirelessly connected to the remote control device, the power of the display device is turned on upon receiving the IR power signal from the remote control device. Display system.

13. In Paragraph 9, The state in which the power of the above display device is off is a state in which the power mode of the above display device operates in low power mode. Display system.

14. In Paragraph 13, The above low-power mode is AOD (Always On Display) mode that displays low-capacity information Display system.

15. In Paragraph 10, The above display device When the above RF power control information indicates that it supports the RF power control function, it receives a response command from the remote control device that responds to the transmission of the RF power control information. Display system.

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