Image display device and operating method thereof

WO2025037659A1PCT designated stage expired Publication Date: 2025-02-20LG ELECTRONICS INC
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Patent Information

Application Number
PCT/KR2023/012173
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-17
Publication Date
2025-02-20

Smart Images

  • Figure KR2023012173_20022025_PF_FP_ABST
    Figure KR2023012173_20022025_PF_FP_ABST
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Abstract

The present disclosure relates to an image display device and an operating method thereof. An image display device according to an embodiment of the present disclosure includes: a broadcast receiving unit including a tuner for receiving a broadcast signal; a display; and a control unit communicating with the tuner, wherein the control unit may check a use mode related to the use of the tuner, on the basis of power-on of the image display device, activate a function related to a broadcast service on the basis of the use mode being set to a first mode of using the tuner, and deactivate the function related to the broadcast service on the basis of the use mode being set to a second mode of limiting the use of the tuner. Various other embodiments are possible.
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Description

Video display device and its operating method

[0001] The present disclosure relates to a video display device and an operating method thereof.

[0002] A video display device is a device that displays images for the user to view. For example, a video display device may include a television (TV), monitor, or notebook computer equipped with a liquid crystal display (LCD) using liquid crystals or an organic light-emitting diode (OLED) display using organic light-emitting diodes (OLED).

[0003] A video display device equipped with a tuner displays an image corresponding to a signal of a broadcast channel selected by a user from among broadcast signals transmitted from a broadcasting station through the tuner. A video display device that receives a broadcast signal through a tuner may, as in Prior Art 1 (Korean Patent Publication No. 10-2016-0021538), receive a broadcast signal wirelessly through an antenna, or may receive a broadcast signal wiredly through a cable.

[0004] Meanwhile, when a video display device equipped with a tuner is powered on, it checks the status of the tuner to determine whether normal operation is possible. At this time, if the status of the tuner is defective, for example, if there is a problem with the circuit board on which the tuner is placed, the terminal of the tuner is damaged, or the RFIC (radio frequency integrated circuit) of the tuner is defective, the video display device cannot boot or there is a delay until booting is completed. As a result, even if the status of the remaining components excluding the tuner is normal, there is a problem in that the user cannot normally use the remaining functions of the video display device except for functions related to broadcasting services.

[0005] The present disclosure aims to solve the above-mentioned and other problems.

[0006] Another purpose is to provide a video display device and an operating method thereof that can determine whether to activate a function related to a broadcast service according to a preset mode in relation to the use of a tuner at boot time.

[0007] Another object is to provide a video display device and an operating method thereof that can switch modes related to the use of a tuner depending on the state of the tuner.

[0008] Another object is to provide a video display device and an operating method thereof that can provide a user interface for setting a mode related to the use of a tuner.

[0009] Another purpose is to provide a video display device and an operating method thereof that can provide an optimized user interface to a user according to the setting of a mode related to the use of a tuner.

[0010] In order to achieve the above object, an image display device according to one embodiment of the present disclosure includes a broadcast receiving unit including a tuner for receiving a broadcast signal; a display; and a control unit for communicating with the tuner, wherein the control unit can determine a usage mode related to the use of the tuner based on the power of the image display device being turned on, activate a function related to a broadcast service based on the usage mode being set to a first mode for using the tuner, and deactivate the function related to the broadcast service based on the usage mode being set to a second mode for restricting the use of the tuner.

[0011] In order to achieve the above object, an operating method of an image display device according to one embodiment of the present disclosure may include an operation of confirming a usage mode related to the use of a tuner for receiving a broadcast signal based on the power of the image display device being turned on; an operation of activating a function related to a broadcast service based on the usage mode being set to a first mode for using the tuner; and an operation of deactivating a function related to the broadcast service based on the usage mode being set to a second mode for restricting the use of the tuner.

[0012] The effects of the video display device and its operating method according to the present disclosure are described as follows.

[0013] According to at least one embodiment of the present disclosure, it is possible to determine whether to activate a function related to a broadcast service depending on a preset mode in relation to the use of a tuner at boot time.

[0014] According to at least one embodiment of the present disclosure, a mode associated with the use of a tuner can be switched depending on the state of the tuner.

[0015] According to at least one embodiment of the present disclosure, a user interface for setting a mode associated with the use of a tuner may be provided to a user.

[0016] According to at least one embodiment of the present disclosure, an optimized user interface can be provided to a user depending on the setting of a mode related to the use of the tuner.

[0017] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will become apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0018] FIG. 1 is a diagram illustrating an image display system according to one embodiment of the present disclosure.

[0019] Figure 2 is an internal block diagram of the image display device of Figure 1.

[0020] Figure 3 is an internal block diagram of the control unit of Figure 2.

[0021] Figure 4 is a drawing illustrating a control method of the remote control device of Figure 2.

[0022] FIG. 5a and FIG. 5b are flowcharts for an operating method of an image display device according to one embodiment of the present disclosure.

[0023] FIGS. 6 to 13 are drawings for reference in explaining the operation of a video display device according to one embodiment of the present disclosure.

[0024] Hereinafter, the present disclosure will be described in detail with reference to the drawings. In the drawings, portions irrelevant to the description are omitted to clearly and concisely describe the present disclosure, and the same reference numerals are used for identical or extremely similar portions throughout the specification.

[0025] The suffixes "module" and "part" used in the following description are given solely for the convenience of writing this specification and do not impart any particularly significant meaning or role to the components themselves. Therefore, the terms "module" and "part" may be used interchangeably.

[0026] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood not to preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0027] Additionally, while terms such as "first" and "second" may be used in this specification to describe various elements, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0028] FIG. 1 is a diagram illustrating an image display system according to various embodiments of the present disclosure.

[0029] Referring to FIG. 1, the image display system (10) may include an image display device (100) and / or a remote control device (200).

[0030] The image display device (100) may be a device that processes and outputs an image. The image display device (100) is not particularly limited as long as it can output a screen corresponding to an image signal, such as a TV, a notebook computer, or a monitor.

[0031] The video display device (100) can receive a broadcast signal, process the signal, and output the processed broadcast image. When the video display device (100) receives a broadcast signal, the video display device (100) may correspond to a broadcast receiving device.

[0032] The video display device (100) can receive broadcast signals wirelessly via an antenna, or can receive broadcast signals wired via a cable. For example, the video display device (100) can receive terrestrial broadcast signals, satellite broadcast signals, cable broadcast signals, IPTV (Internet Protocol Television) broadcast signals, etc.

[0033] The remote control device (200) can be connected to the image display device (100) by wire and / or wirelessly, and can provide various control signals to the image display device (100). At this time, the remote control device (200) can include a device that establishes a wired or wireless network with the image display device (100), and transmits various control signals to the image display device (100) through the established network, or receives signals related to various operations processed in the image display device (100) from the image display device (100).

[0034] For example, various input devices such as a mouse, keyboard, space remote control, trackball, joystick, etc. can be used as the remote control device (200). The remote control device (200) can be referred to as an external device, and it is to be noted in advance that external devices and remote control devices can be used interchangeably as needed.

[0035] The video display device (100) can be connected to only a single remote control device (200) or can be connected to two or more remote control devices (200) simultaneously, and can change objects displayed on the screen or adjust the status of the screen based on control signals provided from each remote control device (200).

[0036] Figure 2 is an internal block diagram of the image display device of Figure 1.

[0037] Referring to FIG. 2, the video display device (100) may include a broadcast receiving unit (105), an external device interface unit (130), a network interface unit (135), a storage unit (140), a user input interface unit (150), an input unit (160), a control unit (170), a display (180), an audio output unit (185), and / or a power supply unit (190).

[0038] The broadcast receiving unit (105) may include a tuner unit (110) and a demodulator unit (120).

[0039] Meanwhile, unlike the drawing, the image display device (100) may include only the broadcast reception unit (105) and the external device interface unit (130) among the broadcast reception unit (105), the external device interface unit (130), and the network interface unit (135). That is, the image display device (100) may not include the network interface unit (135).

[0040] The tuner unit (110) can select a broadcast signal corresponding to a channel selected by the user or all previously stored channels among broadcast signals received via an antenna (not shown) or a cable (not shown). The tuner unit (110) can convert the selected broadcast signal into an intermediate frequency signal or a baseband video or audio signal.

[0041] For example, the tuner unit (110) can convert the selected broadcast signal into a digital IF signal (DIF) if it is a digital broadcast signal, and can convert it into an analog baseband video or audio signal (CVBS / SIF) if it is an analog broadcast signal. That is, the tuner unit (110) can process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner unit (110) can be directly input to the control unit (170).

[0042] Meanwhile, the tuner unit (110) can sequentially select broadcast signals of all broadcast channels stored through the channel memory function among the received broadcast signals and convert them into intermediate frequency signals or baseband video or audio signals.

[0043] Meanwhile, the tuner unit (110) may be equipped with multiple tuners to receive broadcast signals of multiple channels. Alternatively, a single tuner that simultaneously receives broadcast signals of multiple channels is also possible.

[0044] The demodulation unit (120) can perform a demodulation operation by receiving a digital IF signal (DIF) converted by the tuner unit (110).

[0045] The demodulation unit (120) can output a stream signal (TS) after performing demodulation and channel decoding. At this time, the stream signal may be a signal in which a video signal, an audio signal, or a data signal is multiplexed.

[0046] The stream signal output from the demodulation unit (120) can be input to the control unit (170). The control unit (170) can output an image through the display (180) and output an audio through the audio output unit (185) after performing demultiplexing, image / audio signal processing, etc.

[0047] The external device interface unit (130) can transmit or receive data with a connected external device. To this end, the external device interface unit (130) may include an A / V input / output unit (not shown).

[0048] The external device interface unit (130) can be connected to external devices such as a DVD (Digital Versatile Disk), Blu-ray, game device, camera, camcorder, computer (laptop), set-top box, etc., via wired / wireless connection, and can also perform input / output operations with the external devices.

[0049] In addition, the external device interface unit (130) can establish a communication network with various remote control devices (200) as illustrated in FIG. 1, and receive a control signal related to the operation of the image display device (100) from the remote control device (200) or transmit data related to the operation of the image display device (100) to the remote control device (200).

[0050] The A / V input / output unit can receive video and audio signals from an external device. For example, the A / V input / output unit can include an Ethernet terminal, a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog), a DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an MHL (Mobile High-definition Link) terminal, an RGB terminal, a D-SUB terminal, an IEEE 1394 terminal, an SPDIF terminal, a Liquid HD terminal, etc. Digital signals input through these terminals can be transmitted to the control unit (170). At this time, analog signals input through the CVBS terminal and the S-video terminal can be converted into digital signals through an analog-to-digital converter (not shown) and transmitted to the control unit (170).

[0051] The external device interface unit (130) may include a wireless communication unit (not shown) for short-range wireless communication with other electronic devices. Through this wireless communication unit, the external device interface unit (130) can exchange data with an adjacent mobile terminal. For example, in mirroring mode, the external device interface unit (130) may receive device information, running application information, application images, etc. from the mobile terminal.

[0052] The external device interface unit (130) can perform short-range wireless communication using Bluetooth, RFID (Radio Frequency Identification), infrared communication (IrDA, infrared Data Association), UWB (Ultra-Wideband), ZigBee, etc.

[0053] The network interface unit (135) can provide an interface for connecting the video display device (100) to a wired / wireless network including the Internet.

[0054] The network interface unit (135) may include a communication module (not shown) for connection to a wired / wireless network. For example, the network interface unit (135) may include a communication module for WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed ​​Downlink Packet Access), etc.

[0055] The network interface unit (135) can transmit or receive data to or from other users or other electronic devices via the connected network or another network linked to the connected network.

[0056] The network interface unit (135) can receive web content or data provided by a content provider or network operator. That is, the network interface unit (135) can receive web content such as movies, advertisements, games, VOD, broadcast signals, and other information related thereto provided from a content provider or network provider via a network.

[0057] The network interface unit (135) can receive firmware update information and update files provided by the network operator, and transmit data to the Internet or content provider or network operator.

[0058] The network interface unit (135) can select and receive a desired application from among applications open to the public through a network.

[0059] The storage unit (140) may store programs for signal processing and control within the control unit (170), or may store processed video, audio, or data signals. For example, the storage unit (140) may store application programs designed for the purpose of performing various tasks that can be processed by the control unit (170), and may selectively provide some of the stored application programs upon request from the control unit (170).

[0060] Programs stored in the storage unit (140) are not particularly limited as long as they can be executed by the control unit (170).

[0061] The storage unit (140) may also perform a function for temporarily storing video, audio, or data signals received from an external device through the external device interface unit (130).

[0062] The storage unit (140) can store information about a specific broadcast channel through a channel memory function such as a channel map.

[0063] Although the storage unit (140) of FIG. 2 is provided separately from the control unit (170), the scope of the present disclosure is not limited thereto, and the storage unit (140) may be included within the control unit (170).

[0064] The storage unit (140) may include at least one of volatile memory (e.g., DRAM, SRAM, SDRAM, etc.) or non-volatile memory (e.g., flash memory, hard disk drive (HDD), solid-state drive (SSD), etc.). In various embodiments of the present disclosure, the storage unit (140) and memory may be used interchangeably.

[0065] The user input interface unit (150) can transmit a signal input by the user to the control unit (170) or transmit a signal from the control unit (170) to the user.

[0066] For example, a user input signal such as power on / off, channel selection, screen setting, etc. may be transmitted / received from a remote control device (200), a user input signal input from a local key (not shown) such as a power key, a channel key, a volume key, a setting key, etc. may be transmitted to the control unit (170), a user input signal input from a sensor unit (not shown) that senses a user's gesture may be transmitted to the control unit (170), or a signal from the control unit (170) may be transmitted to the sensor unit.

[0067] The input unit (160) may be provided on one side of the main body of the video display device (100). For example, the input unit (160) may include a touch pad, a physical button, etc.

[0068] The input unit (160) can receive various user commands related to the operation of the video display device (100) and transmit a control signal corresponding to the input command to the control unit (170).

[0069] The input unit (160) may include at least one microphone (not shown) and may receive the user's voice through the microphone.

[0070] The control unit (170) may include at least one processor, and may control the overall operation of the image display device (100) using the processor included therein. Here, the processor may be a general processor such as a central processing unit (CPU). Of course, the processor may be a dedicated device such as an ASIC or another hardware-based processor.

[0071] The control unit (170) can demultiplex a stream input through the tuner unit (110), the demodulator unit (120), the external device interface unit (130), or the network interface unit (135), or process the demultiplexed signals to generate and output a signal for video or audio output.

[0072] The display (180) can generate a driving signal by converting a video signal, data signal, OSD signal, control signal, etc. processed by the control unit (170) or a video signal, data signal, control signal, etc. received from the external device interface unit (130).

[0073] The display (180) may include a display panel (not shown) having a plurality of pixels.

[0074] The plurality of pixels provided on the display panel may have RGB sub-pixels. Alternatively, the plurality of pixels provided on the display panel may have RGBW sub-pixels. The display (180) may convert image signals, data signals, OSD signals, control signals, etc. processed by the control unit (170) to generate driving signals for the plurality of pixels.

[0075] The display (180) can be a PDP (Plasma Display Panel), an LCD (Liquid Crystal Display), an OLED (Organic Light Emitting Diode), a flexible display, etc., and may also be a 3D display. The 3D display (180) can be divided into a glasses-free type and a glasses type.

[0076] Meanwhile, the display (180) is configured as a touch screen and can be used as an input device in addition to an output device.

[0077] The audio output unit (185) receives a signal processed by the control unit (170) and outputs it as voice.

[0078] The image signal processed by the control unit (170) can be input to the display (180) and displayed as an image corresponding to the image signal. In addition, the image signal processed by the control unit (170) can also be input to an external output device through the external device interface unit (130).

[0079] The voice signal processed in the control unit (170) can be output as sound to the audio output unit (185). In addition, the voice signal processed in the control unit (170) can be input to an external output device through the external device interface unit (130).

[0080] Although not shown in FIG. 2, the control unit (170) may include a demultiplexing unit, an image processing unit, etc. This will be described later with reference to FIG. 3.

[0081] In addition, the control unit (170) can control the overall operation within the video display device (100). For example, the control unit (170) can control the tuner unit (110) to select (tune) a broadcast corresponding to a channel selected by the user or a previously stored channel.

[0082] In addition, the control unit (170) can control the image display device (100) by a user command or internal program input through the user input interface unit (150).

[0083] Meanwhile, the control unit (170) can control the display (180) to display an image. At this time, the image displayed on the display (180) may be a still image or a moving image, and may be a 2D image or a 3D image.

[0084] Meanwhile, the control unit (170) can cause a predetermined 2D object to be displayed within an image displayed on the display (180). For example, the object can be at least one of a connected web screen (newspaper, magazine, etc.), an EPG (Electronic Program Guide), various menus, widgets, icons, still images, videos, and text.

[0085] Meanwhile, the image display device (100) may further include a camera (not shown). The camera can capture images of a user. The camera can be implemented with a single camera, but is not limited thereto, and may also be implemented with multiple cameras. Meanwhile, the camera can be embedded in the image display device (100) above the display (180) or can be separately positioned. Image information captured by the camera can be input to the control unit (170).

[0086] The control unit (170) can recognize the user's location based on the image captured by the camera. For example, the control unit (170) can determine the distance (z-axis coordinate) between the user and the image display device (100). In addition, the control unit (170) can determine the x-axis coordinate and y-axis coordinate within the display (180) corresponding to the user's location.

[0087] The control unit (170) can detect the user's gesture based on an image captured from the camera unit, a signal detected from the sensor unit, or a combination thereof.

[0088] The power supply unit (190) can supply power to the entire image display device (100). In particular, it can supply power to a control unit (170) that can be implemented in the form of a system on chip (SOC), a display (180) for image display, and an audio output unit (185) for audio output.

[0089] Specifically, the power supply unit (190) may be equipped with a converter (not shown) that converts AC power into DC power and a Dc / Dc converter (not shown) that converts the level of DC power.

[0090] The remote control device (200) can transmit user input to the user input interface unit (150). To this end, the remote control device (200) can use Bluetooth, RF (Radio Frequency) communication, infrared (Infrared Radiation) communication, UWB (Ultra-wideband), ZigBee, etc. In addition, the remote control device (200) can receive images, voices, or data signals output from the user input interface unit (150) and display or output the same as voice on the remote control device (200).

[0091] Meanwhile, the above-described video display device (100) may be a digital broadcast receiver capable of receiving fixed or mobile digital broadcasts.

[0092] Meanwhile, the block diagram of the image display device (100) illustrated in FIG. 2 is only a block diagram for one embodiment of the present disclosure, and each component of the block diagram may be integrated, added, or omitted depending on the specifications of the image display device (100) actually implemented.

[0093] That is, two or more components may be combined into a single component, or a single component may be subdivided into two or more components, as needed. Furthermore, the functions performed by each block are intended to illustrate embodiments of the present disclosure, and their specific operations or devices do not limit the scope of the present disclosure.

[0094] Figure 3 is an internal block diagram of the control unit of Figure 2.

[0095] Referring to FIG. 3, a control unit (170) according to one embodiment of the present disclosure may include a demultiplexer (310), an image processing unit (320), a processor (330), an OSD generation unit (340), a mixer (345), a frame rate conversion unit (350), and / or a formatter (360). In addition, an audio processing unit (not shown) and a data processing unit (not shown) may be further included.

[0096] The demultiplexer (310) can demultiplex an input stream. For example, when MPEG-2 TS is input, it can be demultiplexed to separate it into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer (310) may be a stream signal output from the tuner (110), the demodulator (120), or the external device interface (130).

[0097] The image processing unit (320) can perform image processing of a demultiplexed image signal. To this end, the image processing unit (320) may be equipped with an image decoder (325) and a scaler (335).

[0098] The video decoder (325) can decode a demultiplexed video signal, and the scaler (335) can perform scaling so that the resolution of the decoded video signal can be output on the display (180).

[0099] The video decoder (325) may include decoders of various standards. For example, it may include an MPEG-2, H.264 decoder, a 3D video decoder for color images and depth images, a decoder for multi-view images, etc.

[0100] The processor (330) can control the overall operation within the video display device (100) or the control unit (170). For example, the processor (330) can control the tuner (110) to select (tune) a broadcast corresponding to a channel selected by the user or a pre-stored channel.

[0101] In addition, the processor (330) can control the image display device (100) by a user command or internal program input through the user input interface unit (150).

[0102] Additionally, the processor (330) can perform data transmission control with the network interface unit (135) or the external device interface unit (130).

[0103] Additionally, the processor (330) can control the operation of the demultiplexing unit (310), the image processing unit (320), the OSD generation unit (340), etc. within the control unit (170).

[0104] The OSD generation unit (340) can generate OSD signals based on user input or on its own. For example, based on a user input signal input through the input unit (160), it can generate signals for displaying various information in the form of graphics or text on the screen of the display (180).

[0105] The generated OSD signal may include various data such as the user interface screen of the video display device (100), various menu screens, widgets, icons, etc. In addition, the generated OSD signal may include a 2D object or a 3D object.

[0106] Additionally, the OSD generation unit (340) can generate a pointer that can be displayed on the display (180) based on a pointing signal input from the remote control device (200).

[0107] The OSD generation unit (340) may include a pointing signal processing unit (not shown) that generates a pointer. It is also possible for the pointing signal processing unit (not shown) to be provided separately rather than within the OSD generation unit (240).

[0108] The mixer (345) can mix the OSD signal generated by the OSD generation unit (340) and the decoded image signal processed by the image processing unit (320). The mixed image signal can be provided to the frame rate conversion unit (350).

[0109] The frame rate converter (FRC) (350) can convert the frame rate of an input video. Meanwhile, the frame rate converter (350) can also output the video as is without a separate frame rate conversion.

[0110] The formatter (360) can arrange left-eye image frames and right-eye image frames of a frame rate-converted 3D image. In addition, it can output a synchronization signal (Vsync) for opening the left-eye glasses and right-eye glasses of a 3D viewing device (not shown).

[0111] Meanwhile, the formatter (360) can change the format of the input video signal into a video signal for display on the display (180) and output it.

[0112] Additionally, the formatter (360) can change the format of a 3D video signal. For example, it can change the format to any one of various 3D formats, such as a side-by-side format, a top-down format, a frame sequential format, an interlaced format, and a checker box format.

[0113] Meanwhile, the formatter (360) can also convert a 2D image signal into a 3D image signal. For example, according to a 3D image generation algorithm, an edge or a selectable object can be detected within a 2D image signal, and an object or a selectable object according to the detected edge can be separated and generated as a 3D image signal. At this time, the generated 3D image signal can be separated and aligned into a left-eye image signal (L) and a right-eye image signal (R), as described above.

[0114] Meanwhile, although not shown in the drawing, a 3D processor (not shown) for 3D effect signal processing may be further placed after the formatter (360). This 3D processor may process brightness, tint, and color adjustments of the image signal to improve the 3D effect. For example, it may perform signal processing to make the image clear at a close distance and blurry at a long distance. Meanwhile, the function of this 3D processor may be incorporated into the formatter (360) or incorporated into the image processing unit (320).

[0115] Meanwhile, the audio processing unit (not shown) within the control unit (170) can perform audio processing of the demultiplexed audio signal. For this purpose, the audio processing unit (not shown) can be equipped with various decoders.

[0116] Additionally, the audio processing unit (not shown) within the control unit (170) can process bass, treble, volume control, etc.

[0117] A data processing unit (not shown) within the control unit (170) can perform data processing of a demultiplexed data signal. For example, if the demultiplexed data signal is an encoded data signal, it can be decoded. The encoded data signal may be electronic program guide (EPG) information that includes broadcast information such as the start time and end time of a broadcast program broadcast on each channel.

[0118] Meanwhile, the block diagram of the control unit (170) illustrated in FIG. 3 is only a block diagram for one embodiment of the present disclosure, and each component of the block diagram may be integrated, added, or omitted depending on the specifications of the control unit (170) actually implemented.

[0119] In particular, the frame rate conversion unit (350) and the formatter (360) are not provided within the control unit (170), but may be provided separately, or may be provided separately as one module.

[0120] Figure 4 is a drawing illustrating a control method of the remote control device of Figure 2.

[0121] Referring to FIG. 4, it can be confirmed that a pointer (205) corresponding to a remote control device (200) is displayed on the display (180) of the video display device (100).

[0122] Referring to (a) of FIG. 4, the user can move or rotate the remote control device (200) up and down, left and right, forward and backward. At this time, the pointer (205) displayed on the display (180) of the image display device (100) can be displayed in response to the movement of the remote control device (200). As shown in the drawing, the pointer (205) of this remote control device (200) is moved and displayed according to the movement in 3D space, so it can be called a space remote control or a 3D pointing device.

[0123] Referring to (b) of FIG. 4, when the user moves the remote control device (200) to the left, it can be confirmed that the pointer (205) displayed on the display (180) of the image display device (100) also moves to the left in response to the movement of the remote control device (200).

[0124] Information about the movement of the remote control device (200) detected through the sensor of the remote control device (200) can be transmitted to the image display device (100). The image display device (100) can calculate the coordinates of the pointer (205) from the information about the movement of the remote control device (200). The image display device (100) can display the pointer (205) to correspond to the calculated coordinates.

[0125] Referring to (c) of FIG. 4, a user can move the remote control device (200) away from the display (180) while pressing a specific button provided on the remote control device (200). As a result, a selection area within the display (180) corresponding to the pointer (205) can be zoomed in and displayed in an enlarged manner. Conversely, when a user moves the remote control device (200) closer to the display (180) while pressing a specific button provided on the remote control device (200), a selection area within the display (180) corresponding to the pointer (205) can be zoomed out and displayed in a reduced manner.

[0126] Meanwhile, when the remote control device (200) moves away from the display (180), the selection area may be zoomed out, and when the remote control device (200) moves closer to the display (180), the selection area may be zoomed in.

[0127] Meanwhile, when the user presses a specific button within the remote control device (200), recognition of up, down, left, and right movements may be excluded. That is, when the remote control device (200) moves away from or toward the display (180), up, down, left, and right movements may not be recognized, and only forward and backward movements may be recognized. When the user does not press a specific button within the remote control device (200), only up, down, left, and right movements of the remote control device (200) may be recognized, and accordingly, only the pointer (205) may be moved.

[0128] Meanwhile, the movement speed or movement direction of the pointer (205) can correspond to the movement speed or movement direction of the remote control device (200).

[0129] FIG. 5a and FIG. 5b are flowcharts for an operating method of an image display device according to one embodiment of the present disclosure.

[0130] Referring to FIG. 5A, the image display device (100) can be powered on in operation S501. For example, the image display device (100) can be powered on when a user input of pressing a power key included in an input unit (160) is received while the power is off, or when a signal for turning the power on is received from a remote control device (200). When the power of the image display device (100) is turned on, booting of the image display device (100) can be initiated.

[0131] According to one embodiment, when the power of the video display device (100) is first turned on and booting of the video display device (100) is first performed, the video display device (100) may set a mode related to the use of the tuner (hereinafter, use mode). Hereinafter, the mode that uses the tuner may be named a tuner mode, and the mode that restricts the use of the tuner may be named a tunerless mode.

[0132] Referring to FIG. 6, the image display device (100) may output a screen (600) including a user interface related to the initial setting of the usage mode when the image display device (100) is first powered on. The screen (600) may include an object (610) corresponding to the tuner mode and an object (620) corresponding to the tunerless mode. At this time, based on the object pointed to by the pointer (205) corresponding to the remote control device (200), the user may select the usage mode as one of the tuner mode and the tunerless mode. The control unit (170) of the image display device (100) may receive a command for selecting the usage mode as one of the tuner mode and the tunerless mode through the user input interface unit (150).

[0133] The video display device (100) can, in operation S502, determine whether the usage mode is set to a mode that restricts the use of the tuner. For example, the video display device (100) can determine the usage mode based on data values ​​for the usage mode stored in the memory (140).

[0134] The video display device (100) can perform initialization of the tuner when the usage mode is set to the tuner mode in operation S503. For example, the control unit (170) of the video display device (100) can transmit a signal commanding the initialization of the tuner to the tuner unit (110). At this time, the tuner unit (110) can set the data stored in the register of the tuner to a value for driving an RFIC (radio frequency integrated circuit) or initialize it to an initial setting value based on the signal received from the control unit (170). Meanwhile, when the initialization of the tuner is completed, the tuner unit (110) can transmit a response signal (e.g., an ack signal) for the initialization to the control unit (170).

[0135] The video display device (100) can determine whether initialization of the tuner is completed in operation S504. For example, the control unit (170) of the video display device (100) can determine whether initialization of the tuner is completed based on whether a response signal for initialization is received from the tuner unit (110).

[0136] The video display device (100) can activate functions related to broadcast services based on completion of initialization of the tuner in operation S505. For example, the video display device (100) can activate functions such as outputting broadcast images, searching for channels, providing an electronic program guide (EPG), and recording scheduled broadcast images based on completion of initialization of the tuner.

[0137] The video display device (100) can perform a conventional operation according to power-on in operation S506. For example, the video display device (100) can output a home screen, which is a default screen displayed when the video display device (100) is booted, through the display (180). For example, the video display device (100) can connect to a wired / wireless network, including the Internet, through the network interface unit (135).

[0138] Meanwhile, the video display device (100) may, in operation S507, switch the usage mode to the tunerless mode based on the failure of the initialization for the tuner. For example, the control unit (170) of the video display device (100) may determine that the initialization for the tuner has failed based on the fact that a response signal for the initialization is not received from the tuner unit (110). For example, the control unit (170) of the video display device (100) may determine that the initialization for the tuner has failed based on the fact that a signal corresponding to the failure of the initialization is received from the tuner unit (110). Meanwhile, when the usage mode is switched to the tunerless mode based on the failure of the initialization for the tuner, the video display device (100) may store the data value for the usage mode stored in the memory (140) as a first value corresponding to the automatic setting of the tunerless mode.

[0139] Meanwhile, referring to FIG. 5b, the image display device (100) can determine whether the usage mode has been manually set to the tunerless mode by the user in operation S508, if the usage mode has been set to the tunerless mode. For example, the image display device (100) can determine that the usage mode has been automatically set to the tunerless mode if the data value for the usage mode stored in the memory (140) is the first value, and that the usage mode has been manually set to the tunerless mode if the data value is the second value.

[0140] The video display device (100) can check the status of the tuner when the usage mode is automatically set to the tunerless mode in operation S509. For example, the control unit (170) of the video display device (100) can transmit a preset first signal for checking the status of the tuner to the tuner. At this time, the control unit (170) of the video display device (100) can determine the status of the tuner based on a second signal that responds to the first signal from the tuner. That is, when the control unit (170) receives the second signal from the tuner, it can be determined that power is normally supplied to the tuner and that the communication status of the tuner is also good.

[0141] According to one embodiment, the first signal for checking the status of the tuner may be a signal for commanding the initialization of the tuner. The second signal in response to the first signal may be a response signal for the initialization (e.g., an ack signal). That is, the video display device (100) may retry the initialization of the tuner while the usage mode is automatically set to the tunerless mode.

[0142] The video display device (100) can determine whether the tuner is in good condition in operation S510. For example, the control unit (170) of the video display device (100) can determine that the tuner is in a bad condition based on the fact that a second signal responding to a first signal is not received from the tuner.

[0143] In operation S511, if the state of the tuner is defective, the video display device (100) can output a message through the display (180) indicating that the usage mode is set to the tunerless mode. That is, if the state of the tuner is determined to be defective while the usage mode is automatically set to the tunerless mode, the video display device (100) can notify the user that the usage mode is set to the tunerless mode.

[0144] Referring to FIG. 7, the video display device (100) may output a screen (700) containing a message indicating that the usage mode is set to tunerless mode due to a defective tuner status through the display (180). The video display device (100) may also output a message indicating that functions related to broadcasting services are deactivated as the usage mode is set to tunerless mode.

[0145] Meanwhile, in operation S512, if the tuner is in good condition, the video display device (100) can output a user interface related to setting the usage mode through the display (180). That is, if the tuner is determined to be in good condition while the usage mode is automatically set to the tunerless mode, the video display device (100) can provide a user interface so that the user can set the usage mode in consideration of a failure in initialization of the tuner.

[0146] Referring to FIG. 8A, the video display device (100) may output a screen (800) including a user interface related to setting a usage mode in response to a failure in initialization of the tuner. The screen (800) may include a message indicating that initialization of the tuner has failed. The screen (800) may include an object (810) corresponding to checking the status of the tuner and an object (820) corresponding to a tunerless mode. At this time, based on the object pointed to by the pointer (205) corresponding to the remote control device (200), the user may check the status of the tuner or select the usage mode as the tunerless mode. The control unit (170) of the video display device (100) may receive a command to check the status of the tuner or a command to set the usage mode to the tunerless mode through the user input interface unit (150).

[0147] Referring to FIG. 8B, when an object (810) corresponding to checking the status of a tuner is selected by the user, the image display device (100) can output a screen (805) indicating the status of the tuner. The screen (805) indicating the status of the tuner can include messages regarding the power status of the tuner, the communication status of the tuner, the initialization status of the tuner, the status of a broadcast signal transmitted to the tuner, etc. For example, the image display device (100) can determine the power status and / or the communication status of the tuner based on a second signal that responds to a first signal for checking the status of the tuner. For example, the image display device (100) can determine the status of a broadcast signal transmitted to the tuner based on whether a broadcast signal is received through the tuner, whether a channel is searched for from the broadcast signal, etc.

[0148] Meanwhile, the screen (805) indicating the status of the tuner may include an object (830) corresponding to the tuner mode. When the user selects the object (830) corresponding to the tuner mode, the image display device (100) may store the data value for the usage mode stored in the memory (140) as a value corresponding to the tuner mode. The image display device (100) may re-initialize the tuner based on the usage mode being set to the tuner mode.

[0149] The video display device (100) can determine, in operation S513, whether the user selects the tunerless mode as the usage mode through the user interface. Meanwhile, if the user selects the tunerless mode as the usage mode, the video display device (100) can store the data value for the usage mode stored in the memory (140) as a second value corresponding to the manual setting of the tunerless mode.

[0150] The video display device (100) may, in operation S514, deactivate functions related to broadcast services. For example, the video display device (100) may block the use of functions such as outputting broadcast images, searching for channels, providing an electronic program guide (EPG), and recording scheduled broadcast images when the usage mode is manually set to tunerless mode or when the tuner is determined to be in a defective state while the usage mode is automatically set to tunerless mode.

[0151] Referring to FIGS. 9 to 11, a user can set a usage mode by using a user interface (910) (hereinafter, setting UI) that sets the setting values ​​of the image display device (100) while using the image display device (100).

[0152] Referring to FIG. 9, the image display device (100) can provide a setting UI (910) while the screen is output through the display (180). For example, the image display device (100) can output the setting UI (910) when a user input signal for pressing a setting key is received from a remote control device (200).

[0153] The settings UI (910) may include an object (911) corresponding to settings related to video output, an object (912) corresponding to settings related to audio output, an object (913) corresponding to settings related to broadcast service provision, an object (914) corresponding to settings related to communication connection, an object (915) corresponding to basic settings of the video display device (100) such as language and time, an object (916) corresponding to settings related to convenience functions such as voice guidance and subtitle display, an object (917) corresponding to settings related to technical support such as software updates, etc.

[0154] When the usage mode is set to tuner mode, an object (913) corresponding to settings related to the provision of broadcast services may be displayed as a first object (913') indicating the activation of a function related to the broadcast service. At this time, when a user selects the first object (913') using a pointer (205) corresponding to a remote control device (200), the video display device (100) may provide a function for searching for a channel, a function for editing a searched channel, etc.

[0155] Meanwhile, the user can set the usage mode by selecting an object (915) corresponding to the basic settings of the video display device (100) using the pointer (205) corresponding to the remote control device (200).

[0156] Referring to FIG. 10, the image display device (100) can output a screen (1000) for setting a usage mode through the display (180). The screen (1000) for setting a usage mode can include an object (1010) corresponding to a tuner mode and an object (1020) corresponding to a tunerless mode. The user can select either the object (1010) corresponding to the tuner mode or the object (1020) corresponding to the tunerless mode using a pointer (205) corresponding to a remote control device (200). The image display device (100) can set the usage mode to either the tuner mode or the tunerless mode based on the user's selection. In this case, when the user selects the tunerless mode as the usage mode, the image display device (100) can store a data value for the usage mode stored in the memory (140) as a second value corresponding to manual setting of the tunerless mode.

[0157] Referring to Fig. 11, when the usage mode is set to tunerless mode, an object (913) corresponding to settings related to provision of broadcast services may be displayed as a second object (913'') indicating deactivation of functions related to broadcast services. At this time, even if the user selects the second object (913'') using a pointer (205) corresponding to the remote control device (200), the video display device (100) may block access to settings related to provision of broadcast services, such as the function of searching for channels and the function of editing searched channels.

[0158] Referring to FIG. 12, the video display device (100) may output a channel search related screen (1200) based on a user input selecting an object (913) corresponding to settings related to broadcast service provision. The video display device (100) may provide a function for searching for channels when a function related to broadcast service is activated. Hereinafter, channel search may be referred to as auto scan, automatic scan, automatic channel selection, automatic channel setting, automatic channel search, etc. The channel search related screen (1200) may include an object (1210) corresponding to the start of channel search. When a user selects an object (1210) corresponding to the start of channel search using a pointer (205), the video display device (100) may perform a channel search based on a broadcast signal received through a tuner.

[0159] Referring to FIG. 13, the video display device (100) can output a search results screen (1300) regarding the results of performing a channel search. The search results screen (1300) can include the number of channels searched for according to the method of receiving a broadcast signal, the number of channels searched for according to the frequency band, etc. The search results screen (1300) can include an object (1310) corresponding to re-performing a channel search and an object (1320) corresponding to completing a channel search.

[0160] The video display device (100) can determine the status of the tuner based on the results of the channel search. For example, if no channel is found through the channel search, the video display device (100) can determine that the tuner is in a defective state.

[0161] If no channel is found through a channel search, the video display device (100) can output a message indicating that the channel search has failed through a search result screen (1300). If the status of the tuner is determined to be defective based on the results of the channel search, the video display device (100) can provide a user interface related to setting the usage mode through the search result screen (1300). For example, if the status of the tuner is determined to be defective based on the results of the channel search, the video display device (100) can include an object (1330) corresponding to the setting of the usage mode in the search result screen (1300). At this time, if the user selects the object (1330) corresponding to the setting of the usage mode using the pointer (205), the video display device (100) can output a screen (1000) (see FIG. 10) for setting the usage mode.

[0162] As described above, according to various embodiments of the present disclosure, it is possible to determine whether to activate a function related to a broadcast service depending on a preset mode in relation to the use of a tuner at boot time.

[0163] Additionally, according to various embodiments of the present disclosure, a mode related to the use of the tuner can be switched depending on the state of the tuner.

[0164] Additionally, according to various embodiments of the present disclosure, a user interface for setting a mode related to the use of a tuner can be provided to the user.

[0165] Additionally, according to various embodiments of the present disclosure, an optimized user interface can be provided to a user depending on the setting of a mode related to the use of the tuner.

[0166] Referring to FIGS. 1 to 13, a video display device (100) according to one aspect of the present disclosure includes a broadcast receiving unit (105) including a tuner for receiving a broadcast signal; a display (180); and a control unit (170) for communicating with the tuner, wherein the control unit (170) can, based on the power of the video display device (100) being turned on, determine a usage mode related to the use of the tuner, and, based on the usage mode being set to a first mode for using the tuner, activate a function related to a broadcast service, and, based on the usage mode being set to a second mode for restricting the use of the tuner, deactivate the function related to the broadcast service.

[0167] In addition, according to one aspect of the present disclosure, the control unit (170) may perform initialization for the tuner when the usage mode is set to the first mode, change the usage mode to the second mode when the response signal is not received from the tuner, and activate a function related to the broadcast service when a response signal for the initialization is received from the tuner.

[0168] In addition, according to one aspect of the present disclosure, when the usage mode is set to the second mode, the control unit (170) can check whether the usage mode is manually set to the second mode by a user, and when the usage mode is automatically set to the second mode, transmit a first signal for checking the status of the tuner to the tuner, and when the usage mode is manually set to the second mode, deactivate a function related to the broadcast service.

[0169] In addition, according to one aspect of the present disclosure, the control unit (170) may determine the state of the tuner based on a second signal received from the tuner in response to the first signal, and if the state of the tuner is good, output a user interface related to setting of the use mode through the display (180), and if the state of the tuner is bad, output a message indicating that the use mode is set to the second mode through the display (180).

[0170] Additionally, according to one aspect of the present disclosure, the first signal may be a signal commanding initialization of the tuner, and the second signal may be a response signal to the initialization.

[0171] In addition, according to one aspect of the present disclosure, the control unit (170) performs a channel search based on the broadcast signal received through the tuner while the function related to the broadcast service is activated, and if the state of the tuner is determined to be defective based on the result of performing the channel search, the control unit (170) can output a user interface related to the setting of the usage mode through the display (180).

[0172] In addition, according to one aspect of the present disclosure, the control unit (170) outputs a user interface including objects each corresponding to a plurality of functions of the image display device (100) through the display (180), and the user interface may include a first object corresponding to activation of a function related to the broadcast service when the use mode is set to the first mode, and may include a second object corresponding to deactivation of a function related to the broadcast service when the use mode is set to the second mode.

[0173] An operating method of a video display device (100) according to one aspect of the present disclosure may include: an operation of checking a usage mode related to the use of a tuner for receiving a broadcast signal based on the power of the video display device (100) being turned on; an operation of activating a function related to a broadcast service based on the usage mode being set to a first mode for using the tuner; and an operation of deactivating a function related to the broadcast service based on the usage mode being set to a second mode for restricting the use of the tuner.

[0174] In addition, according to one aspect of the present disclosure, when the usage mode is set to the first mode, the operation of performing initialization for the tuner is further included; and when the response signal is not received from the tuner, the operation of changing the usage mode to the second mode is further included, and the operation of activating a function related to the broadcast service may activate a function related to the broadcast service when a response signal for the initialization is received from the tuner.

[0175] In addition, according to one aspect of the present disclosure, when the usage mode is set to the second mode, the operation of checking whether the usage mode is manually set to the second mode by a user; and when the usage mode is automatically set to the second mode, the operation of transmitting a first signal for checking the status of the tuner to the tuner is further included, and the operation of disabling a function related to the broadcast service may disable a function related to the broadcast service when the usage mode is manually set to the second mode.

[0176] In addition, according to one aspect of the present disclosure, the method may further include: an operation of determining a state of the tuner based on a second signal received from the tuner in response to the first signal; an operation of outputting a user interface related to setting of the usage mode through a display (180) when the state of the tuner is good; and an operation of outputting a message indicating that the usage mode is set to a second mode through the display (180) when the state of the tuner is bad.

[0177] Additionally, according to one aspect of the present disclosure, the first signal may be a signal commanding initialization of the tuner, and the second signal may be a response signal to the initialization.

[0178] In addition, according to one aspect of the present disclosure, the method may further include an operation of performing a channel search based on the broadcast signal received through the tuner while the function related to the broadcast service is activated; and an operation of outputting a user interface related to the setting of the usage mode on the display (180) when the state of the tuner is determined to be defective based on the result of performing the channel search.

[0179] In addition, according to one aspect of the present disclosure, the method further includes an operation of outputting a user interface including objects each corresponding to a plurality of functions of the image display device (100) through a display (180), wherein the user interface may include a first object corresponding to activation of a function related to the broadcast service when the use mode is set to the first mode, and may include a second object corresponding to deactivation of a function related to the broadcast service when the use mode is set to the second mode.

[0180] The attached drawings are only intended to facilitate understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present disclosure.

[0181] Meanwhile, the operating method of the present disclosure can be implemented as processor-readable code on a processor-readable recording medium. A processor-readable recording medium includes all types of recording devices that store data that can be read by a processor. Examples of processor-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage devices, etc., and also include those implemented in the form of a carrier wave, such as transmission via the Internet. Furthermore, the processor-readable recording medium can be distributed across network-connected computer systems, so that the processor-readable code can be stored and executed in a distributed manner.

[0182] In addition, although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present invention pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. In a video display device, A broadcast receiving unit including a tuner for receiving a broadcast signal; display; and A control unit communicating with the above tuner is included, The above control unit, Based on the power of the above video display device being turned on, the usage mode related to the use of the above tuner is checked, Based on the above usage mode being set to the first mode using the tuner, the function related to the broadcast service is activated, A video display device characterized in that functions related to the broadcast service are disabled based on the above usage mode being set to a second mode that restricts the usage of the tuner.

2. In paragraph 1, The above control unit, When the above usage mode is set to the first mode, initialization for the tuner is performed, If the response signal is not received from the tuner, the usage mode is changed to the second mode, A video display device characterized in that, when a response signal for the initialization is received from the tuner, a function related to the broadcast service is activated.

3. In paragraph 1, The above control unit, If the above usage mode is set to the second mode, check whether the above usage mode is manually set to the second mode by the user, When the above usage mode is automatically set to the second mode, a first signal for checking the status of the tuner is transmitted to the tuner, A video display device characterized in that functions related to the broadcast service are disabled when the above usage mode is manually set to the second mode.

4. In paragraph 3, The above control unit, Based on a second signal received from the tuner in response to the first signal, the state of the tuner is determined, If the above tuner is in good condition, the user interface related to the setting of the above usage mode is output through the above display, A display device characterized in that, when the state of the tuner is bad, a message indicating that the usage mode is set to the second mode is output through the display.

5. In paragraph 4, The above first signal is a signal that commands initialization of the tuner, An image display device, characterized in that the second signal is a response signal to the initialization.

6. In paragraph 1, The above control unit, When the function related to the above broadcast service is activated, a channel search is performed based on the broadcast signal received through the tuner, A video display device characterized in that, if the state of the tuner is determined to be defective as a result of performing the channel search, a user interface related to the setting of the usage mode is output through the display.

7. In paragraph 1, The above control unit, Through the above display, a user interface including objects each corresponding to a plurality of functions of the image display device is output, The above user interface, When the above usage mode is set to the first mode, it includes a first object corresponding to the activation of a function related to the broadcast service, A video display device characterized in that it includes a second object corresponding to deactivation of a function related to the broadcast service when the above usage mode is set to the second mode.

8. In the operating method of the video display device, An operation of checking a usage mode related to the use of a tuner for receiving a broadcast signal based on the power of the above video display device being turned on; An operation for activating a function related to a broadcast service based on the above usage mode being set to the first mode using the tuner; and An operating method of a video display device, including an operation of disabling a function related to the broadcast service based on the above usage mode being set to a second mode that restricts the usage of the tuner.

9. In paragraph 8, When the above usage mode is set to the first mode, an operation for performing initialization for the tuner; and Further comprising an operation of changing the usage mode to the second mode when the response signal is not received from the tuner; An operation method of an image display device, characterized in that the operation of activating a function related to the broadcast service comprises activating a function related to the broadcast service when a response signal to the initialization is received from the tuner.

10. In paragraph 8, When the above usage mode is set to the second mode, an operation for checking whether the above usage mode is manually set to the second mode by the user; and If the above usage mode is automatically set to the second mode, the method further includes an operation of transmitting a first signal for checking the status of the tuner to the tuner. An operation method of an image display device, characterized in that the operation of disabling a function related to the broadcast service is performed by disabling a function related to the broadcast service when the usage mode is manually set to the second mode.

11. In paragraph 10, An operation of determining a state of the tuner based on a second signal received from the tuner in response to the first signal; If the state of the above tuner is good, an operation of outputting a user interface related to the setting of the above usage mode through the display; and An operating method of an image display device, characterized in that it further includes an action of outputting a message indicating that the usage mode is set to the second mode through the display when the state of the tuner is bad.

12. In paragraph 11, The above first signal is a signal that commands initialization of the tuner, An operating method of an image display device, characterized in that the second signal is a response signal to the initialization.

13. In paragraph 8, An operation of performing a channel search based on the broadcast signal received through the tuner while the function related to the above broadcast service is activated; and An operating method of an image display device, characterized in that it further includes an action of outputting a user interface related to the setting of the usage mode on the display if the state of the tuner is determined to be defective as a result of performing the channel search.

14. In paragraph 8, Further comprising an action of outputting a user interface including objects each corresponding to a plurality of functions of the image display device through the display, The above user interface, When the above usage mode is set to the first mode, it includes a first object corresponding to the activation of a function related to the broadcast service, An operating method of an image display device, characterized in that it includes a second object corresponding to deactivation of a function related to the broadcast service when the above usage mode is set to the second mode.

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