KR20210056762A - Image display apparatus and method thereof - Google Patents

Abstract

The present invention relates to an image display apparatus and an operating method thereof. An image display apparatus according to an embodiment of the present invention, comprises: a display; an external device interface unit for communicating with a remote control device; and a control unit. When a power command for turning on the power of the image display apparatus is received in a state in which the power of the image display apparatus is turned off, the control unit checks whether a signal is received from the remote control device for a predetermined time after receiving the power command. When at least one signal is received for a predetermined time, the control unit displays an image through the display based on data included in the at least one signal, and when at least one signal is not received for a predetermined time, the controller may display an image through the display according to a preset value in relation to turning off the power of the image display apparatus. In addition, various embodiments are possible. Accordingly, settings can be easily and variously changed depending on user input.

Description

Video display device and its operation method {IMAGE DISPLAY APPARATUS AND METHOD THEREOF}

The present invention relates to a video display device and a method of operating the same.

The image display device is a device having a function of displaying an image that can be viewed by a user. For example, the image display device may include a liquid crystal display (LCD) using liquid crystal or a TV (Television) having an OLED display using an organic light emitting diode (OLED). have.

On the other hand, in a general video display device, when the power is turned on while the power is turned off, an image is displayed according to a broadcast channel set at a time when the power is turned off, or audio is output according to a set volume. In addition, it takes a certain time from the time when the power-on command is input until the image is displayed on the screen.

In this case, when the user wants to change the broadcast channel or adjust the volume, the user has to wait for an image to be displayed on the screen in order to input a corresponding command.

It is an object of the present invention to solve the above and other problems.

Another object is to provide an image display device and an operating method thereof capable of simply and variously changing settings according to a user input even before an image is displayed on a screen.

In order to achieve the above object, an image display device according to an embodiment of the present invention includes a display and an external device interface unit and a control unit for performing communication with a remote control device, and the control unit turns off the power of the image display device. When a power command to turn on the image display device in the (off) state is received, it is checked whether a signal is received from the remote control device for a predetermined time after receiving the power command, and at least one When a signal of is received, an image is displayed on the display based on data included in at least one signal, and when at least one signal is not received for a predetermined time, the power of the video display device is turned off and In relation to, an image may be displayed through the display according to a preset setting value.

On the other hand, the method of operating an image display device according to an embodiment of the present invention is, when a power command for turning on the image display device is received while the image display device is powered off. A first operation of checking whether a signal is received from the remote control device for a predetermined time after receiving a command, and displaying an image based on data included in the at least one signal when at least one signal is received for a predetermined time When at least one signal is not received during a display operation and a predetermined time, a second display operation of displaying an image according to a preset value in connection with power off of the image display device may be included.

The effect of the image display device according to the present invention will be described as follows.

According to at least one embodiment of the present invention, when the power of the image display device is turned on, even before the image is displayed on the screen, setting can be conveniently and variously performed according to a user input received through the remote control device. As it can be changed, the user's convenience of use can be improved.

Further scope of the applicability of the present invention will become apparent from the detailed description below. However, since various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, specific embodiments such as the detailed description and preferred embodiments of the present invention should be understood as being given by way of example only.

1 is a diagram illustrating an image display system according to an embodiment of the present invention.
2 is an internal block diagram of the image display device of FIG. 1.
3 is an internal block diagram of the control unit of FIG. 2.
4 is an internal block diagram of the remote control device of FIG. 2.
5 is a diagram illustrating a control method of the remote control device of FIG. 2.
6 is a flowchart illustrating a method of operating an image display device according to an exemplary embodiment of the present invention.
7 to 11 are views referenced for explaining a method of operating an image display device.

Hereinafter, the present invention will be described in detail with reference to the drawings. In the drawings, in order to clearly and briefly describe the present invention, illustration of parts irrelevant to the description is omitted, and the same reference numerals are used for identical or extremely similar parts throughout the specification.

The suffixes "module" and "unit" for the constituent elements used in the following description are given in consideration of only the ease of writing in the present specification, and do not impart a particularly important meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably with each other.

In this application, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of possibilities, or the presence or addition of numbers, steps, actions, components, parts, or combinations thereof, is not to be understood in advance.

In addition, in the present specification, terms such as first and second may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

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

Referring to FIG. 1, the image display system 10 may include an image display device 100 and a remote control device 200.

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

The video display device 100 may receive a broadcast signal, process the broadcast signal, and output a signal-processed broadcast image. When the image display device 100 receives a broadcast signal, the image display device 100 may correspond to a broadcast reception device.

The video display device 100 may receive a broadcast signal wirelessly through an antenna or may receive a broadcast signal through a cable through a cable.

For example, the image display device 100 may receive a terrestrial broadcast signal, a satellite broadcast signal, a cable broadcast signal, an Internet Protocol Television (IPTV) broadcast signal, and the like.

The remote control device 200 may be connected to the image display device 100 by wire and/or wirelessly to provide various control signals to the image display device 100. At this time, the remote control device 200 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 the image display device 100 A device for receiving signals related to various operations processed by the image display device 100 may be included.

For example, various input devices such as a mouse, a keyboard, a space remote control, a trackball, and a joystick may be used as the remote control device 200. The remote control device 200 may be referred to as an external device, and hereinafter, it will be noted in advance that an external device and a remote control device may be mixed and used as necessary.

The image display device 100 is connected to only a single remote control device 200, or is simultaneously connected with two or more remote control devices 200, based on a control signal provided from each remote control device 200, on the screen. You can change the displayed object or adjust the state of the screen.

2 is an internal block diagram of the image display device of FIG. 1.

Referring to FIG. 2, the video display device 100 includes 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, and an input unit. (160), a controller 170, a display 180, an audio output unit 185 and/or a power supply unit 190 may be included.

The broadcast reception unit 105 may include a tuner unit 110 and a demodulation unit 120.

On the other hand, the image display device 100, unlike the drawings, of the broadcast receiving unit 105, the external device interface unit 130, and the network interface unit 135, the broadcast receiving unit 105, the external device interface unit 130 It is also possible to include only. That is, the image display device 100 may not include the network interface unit 135.

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

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

Meanwhile, the tuner 110 may sequentially select broadcast signals of all broadcast channels stored through a channel memory function among received broadcast signals, and convert them into intermediate frequency signals or baseband video or audio signals.

Meanwhile, the tuner unit 110 may include a plurality of tuners in order to receive broadcast signals of a plurality of channels. Alternatively, a single tuner that simultaneously receives broadcast signals of multiple channels is also possible.

The demodulation unit 120 may perform a demodulation operation by receiving the digital IF signal DIF converted by the tuner unit 110.

The demodulator 120 may output a stream signal TS after performing demodulation and channel decoding. In this case, the stream signal may be a signal in which a video signal, an audio signal, or a data signal is multiplexed.

The stream signal output from the demodulator 120 may be input to the controller 170. After performing demultiplexing, image/audio signal processing, and the like, the controller 170 may output an image through the display 180 and output an audio through the audio output unit 185.

The external device interface unit 130 may 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).

The external device interface unit 130 may be connected to an external device such as a digital versatile disk (DVD), a blu ray, a game device, a camera, a camcorder, a computer (laptop), a set-top box, etc. by wire or wirelessly. , It is also possible to perform input/output operations with external devices.

In addition, the external device interface unit 130 establishes a communication network with various remote control devices 200 as shown in FIG. 1 to control the operation of the image display device 100 from the remote control device 200. A signal may be received or data related to an operation of the image display device 100 may be transmitted to the remote control device 200.

The A/V input/output unit may receive video and audio signals from an external device.

The external device interface unit 130 may include a wireless communication unit (not shown) for short-range wireless communication with other electronic devices.

Through such a wireless communication unit (not shown), the external device interface unit 130 may exchange data with an adjacent mobile terminal. In particular, in the mirroring mode, the external device interface unit 130 may receive device information, executed application information, application image, and the like from the mobile terminal.

The network interface unit 135 may provide an interface for connecting the image display device 100 to a wired/wireless network including an Internet network. For example, the network interface unit 135 may receive content or data provided by the Internet or a content provider or a network operator through a network.

Meanwhile, the network interface unit 135 may include a communication module (not shown) for connection with a wired/wireless network.

The storage unit 140 may store a program for processing and controlling each signal in the control unit 170, or may store a signal-processed video, audio, or data signal.

For example, the storage unit 140 stores application programs designed for the purpose of performing various tasks that can be processed by the control unit 170, and when requested by the control unit 170, some of the stored application programs are selectively selected. Can provide.

The program or the like stored in the storage unit 140 is not particularly limited as long as it can be executed by the control unit 170.

The storage unit 140 may perform a function for temporary storage of an image, audio, or data signal received from an external device through the external device interface unit 130.

The storage unit 140 may store information on a predetermined broadcast channel through a channel storage function such as a channel map.

The storage unit 140 may store a setting value set in relation to at least one of a broadcast channel, a volume, an application, and an external device connection state at a time when the video display device 100 is powered off.

When the power of the image display apparatus 100 is turned on, the controller 170 may perform an operation based on a setting value stored in the storage unit 140.

For example, when the power of the image display device 100 is turned on, the control unit 170 may turn off the power based on a setting value related to a broadcast channel stored in the storage unit 140. The image of the broadcast channel selected at the viewpoint may be controlled to be displayed through the display 180.

For example, when the power of the image display device 100 is turned on, the control unit 170 may turn off the power based on a set value related to the volume stored in the storage unit 140. Depending on the volume of, the audio may be controlled to be output through the audio output unit 185.

2 illustrates an embodiment in which the storage unit 140 is provided separately from the control unit 170, but the scope of the present invention is not limited thereto, and the storage unit 140 may be included in the control unit 170.

The storage unit 140 includes volatile memory (eg, DRAM, SRAM, SDRAM, etc.), nonvolatile memory (eg, flash memory), hard disk drive (HDD), and solid state drive. -state drive (SSD), etc.).

The user input interface unit 150 may transmit a signal input by the user to the controller 170 or may transmit a signal from the controller 170 to the user.

For example, the remote control device 200 transmits/receives user input signals such as power on/off, channel selection, and screen setting, or local keys such as power keys, channel keys, volume keys, and set values (not shown). A user input signal input from the controller 170 is transmitted to the controller 170, or a user input signal input from a sensor unit (not shown) that senses a user's gesture is transmitted to the controller 170, or a signal from the controller 170 is transmitted. It can be transmitted to the sensor unit.

The input unit 160 may be provided on one side of the main body of the image display device 100. For example, the input unit 160 may include a touch pad, a physical button, or the like.

The input unit 160 may receive various user commands related to the operation of the image display apparatus 100 and may transmit a control signal corresponding to the input command to the control unit 170.

The controller 170 may include at least one processor, and may control the overall operation of the image display device 100 by 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.

The control unit 170 demultiplexes the stream input through the tuner unit 110, the demodulation unit 120, the external device interface unit 130, or the network interface unit 135, or processes demultiplexed signals. , It is possible to generate and output a signal for video or audio output.

The display 180 converts an image signal, a data signal, an OSD signal, a control signal, or an image signal, a data signal, and a control signal received from the external device interface unit 130, processed by the controller 170 to convert a driving signal. Can be generated.

The display 180 may include a display panel (not shown) including a plurality of pixels.

A plurality of pixels included in the display panel may include RGB subpixels. Alternatively, a plurality of pixels included in the display panel may include RGBW sub-pixels. The display 180 may generate driving signals for a plurality of pixels by converting an image signal, a data signal, an OSD signal, a control signal, and the like processed by the controller 170.

The display 180 can be a plasma display panel (PDP), a liquid crystal display (LCD), an organic light emitting diode (OLED), a flexible display, and a 3D display. have. The 3D display 180 may be classified into a glasses-free method and a glasses method.

Meanwhile, the display 180 may be configured as a touch screen and used as an input device other than an output device.

The audio output unit 185 receives a signal processed by the control unit 170 and outputs it as a voice.

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the corresponding image signal. In addition, the image signal processed by the control unit 170 may be input to an external output device through the external device interface unit 130.

The audio signal processed by the control unit 170 may be sound output to the audio output unit 185. In addition, the voice signal processed by the control unit 170 may be input to an external output device through the external device interface unit 130.

Although not shown in FIG. 2, the control unit 170 may include a demultiplexer, an image processing unit, and the like. This will be described later with reference to FIG. 3.

In addition, the controller 170 may control the overall operation of the image display device 100.

For example, the control unit 170 may control the tuner unit 110 to select (Tuning) a channel selected by the user or a broadcast corresponding to a previously stored channel.

In addition, the control unit 170 may control the image display apparatus 100 according to a user command or an internal program input through the user input interface unit 150.

Meanwhile, the controller 170 may control the display 180 to display an image. In this case, 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.

Meanwhile, the controller 170 may display a predetermined 2D object in an image displayed on the display 180. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), EPG (Electronic Program Guide), various menus, widgets, icons, still images, moving pictures, and text.

Meanwhile, the image display device 100 may further include a photographing unit (not shown). The photographing unit may photograph a user. The photographing unit may be implemented with one camera, but is not limited thereto, and may be implemented with a plurality of cameras. Meanwhile, the photographing unit may be embedded in the image display apparatus 100 on the display 180 or may be separately disposed. Image information captured by the photographing unit may be input to the control unit 170.

The control unit 170 may recognize the user's location based on the image captured by the photographing unit. For example, the controller 170 may determine a distance (z-axis coordinate) between the user and the image display device 100. In addition, the controller 170 may determine the x-axis coordinates and the y-axis coordinates in the display 180 corresponding to the user location.

The controller 170 may detect a user's gesture based on an image captured by the photographing unit or a signal sensed from the sensor unit, or a combination thereof.

The power supply unit 190 may supply corresponding power throughout the image display device 100. In particular, power can be supplied to the control unit 170 that can be implemented in the form of a System On Chip (SOC), the display 180 for displaying an image, and the audio output unit 185 for outputting audio. have.

Specifically, the power supply unit 190 may include a converter (not shown) for converting AC power to DC power, and a Dc/Dc converter (not shown) for converting the level of DC power.

Meanwhile, the power supply unit 190 may supply power to at least one component included in the image display device 100 while the image display device 100 is powered off.

For example, the power supply unit 190 may supply standby power to the user input interface unit 150 and the control unit 170 while the image display device 100 is powered off, and the control unit 170 May execute the power standby mode according to the standby power received from the power supply unit 190. Here, the power standby mode is to turn on the power of the image display device 100 through the user input interface unit 150 ( It may mean a mode for checking whether a power command, which is an on) command, is received.

In this case, when a power command is received through the user input interface unit 150, the control unit 170 may control the power supply unit 190 so that power is supplied to the entire image display apparatus 100.

The remote control device 200 may transmit a user input to the user input interface unit 150. To this end, the remote control device 200 may use Bluetooth, Radio Frequency (RF) communication, Infrared Radiation (IR) communication, Ultra-wideband (UWB), ZigBee, or the like. In addition, the remote control device 200 may receive an image, audio, or data signal output from the user input interface unit 150, and display or output an audio signal on the remote control device 200.

Meanwhile, the above-described image display device 100 may be a digital broadcast receiver capable of receiving a fixed or mobile digital broadcast.

Meanwhile, the block diagram of the image display device 100 shown in FIG. 2 is only a block diagram for an embodiment of the present invention, and each component of the block diagram is in accordance with the specifications of the image display device 100 that is actually implemented. May be incorporated, added, or omitted.

That is, if necessary, two or more components may be combined into one component, or one component may be subdivided into two or more components to be configured. In addition, functions performed by each block are for explaining the embodiments of the present invention, and specific operations or devices thereof do not limit the scope of the present invention.

3 is an internal block diagram of the control unit of FIG. 2.

Referring to FIG. 3, the control unit 170 according to an embodiment of the present invention includes a demultiplexer 310, an image processing unit 320, a processor 330, an OSD generator 340, a mixer 345, and A frame rate converter 350 and/or a formatter 360 may be included. In addition, an audio processing unit (not shown) and a data processing unit (not shown) may be further included.

The demultiplexer 310 may demultiplex an input stream. For example, when an MPEG-2 TS is input, it can be demultiplexed and separated 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 unit 110 or the demodulation unit 120 or the external device interface unit 130.

The image processing unit 320 may perform image processing of the demultiplexed image signal. To this end, the image processing unit 320 may include an image decoder 325 and a scaler 335.

The image decoder 325 may decode the demultiplexed image signal, and the scaler 335 may perform scaling so that the resolution of the decoded image signal can be output from the display 180.

The video decoder 325 may include decoders of various standards. For example, an MPEG-2, H,264 decoder, a 3D image decoder for a color image and a depth image, a decoder for a multi-view image, and the like may be provided.

The processor 330 may control overall operations within the image display device 100 or within the controller 170. For example, the processor 330 may control the tuner 110 to select a channel selected by the user or a broadcast corresponding to a previously stored channel.

In addition, the processor 330 may control the image display device 100 by a user command or an internal program input through the user input interface unit 150.

In addition, the processor 330 may control data transmission with the network interface unit 135 or the external device interface unit 130.

In addition, the processor 330 may control operations of the demultiplexer 310, the image processing unit 320, and the OSD generator 340 in the control unit 170.

The OSD generator 340 may generate an OSD signal by itself or according to a user input. For example, based on a user input signal input through the input unit 160, a signal for displaying various types of information as graphic or text on the screen of the display 180 may be generated.

The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the image display device 100. In addition, the generated OSD signal may include a 2D object or a 3D object.

In addition, the OSD generator 340 may generate a pointer that can be displayed on the display 180 based on a pointing signal input from the remote control device 200.

The OSD generator 340 may include a pointing signal processor (not shown) that generates a pointer. A pointing signal processing unit (not shown) may not be provided in the OSD generating unit 240 and may be provided separately.

The mixer 345 may mix the OSD signal generated by the OSD generating unit 340 and the decoded image signal processed by the image processing unit 320. The mixed image signal may be provided to the frame rate converter 350.

The frame rate converter (FRC) 350 may convert a frame rate of an input image. On the other hand, the frame rate conversion unit 350 may output as it is without any separate frame rate conversion.

The formatter 360 may arrange a left-eye image frame and a right-eye image frame of a frame rate-converted 3D image. In addition, a synchronization signal Vsync for opening the left-eye glass and the right-eye glass of the 3D viewing apparatus (not shown) may be output.

Meanwhile, the formatter 360 may convert the format of an input image signal into an image signal for display on the display 180 and output it.

In addition, the formatter 360 may change the format of the 3D video signal. For example, among various 3D formats such as Side by Side format, Top/Down format, Frame Sequential format, Interlaced format, and Checker Box format. It can be changed to any one format.

Meanwhile, the formatter 360 may convert a 2D video signal into a 3D video signal. For example, according to a 3D image generation algorithm, an edge or selectable object is detected in a 2D image signal, and an object or selectable object according to the detected edge is separated into a 3D image signal. I can. At this time, the generated 3D image signal may be separated and aligned into a left-eye image signal L and a right-eye image signal R, as described above.

Meanwhile, although not shown in the drawing, after the formatter 360, a 3D processor (not shown) for processing a 3-dimensional effect signal may be further disposed. Such a 3D processor may process brightness, tint, and color adjustment of an image signal in order to improve a 3D effect. For example, it is possible to perform signal processing to make the near field clear and the far field blurry. Meanwhile, the functions of the 3D processor may be merged into the formatter 360 or may be merged into the image processing unit 320.

Meanwhile, an audio processing unit (not shown) in the control unit 170 may perform speech processing of a demultiplexed speech signal. To this end, the audio processing unit (not shown) may include various decoders.

In addition, an audio processing unit (not shown) in the control unit 170 may process a base, a treble, and a volume control.

A data processing unit (not shown) in the control unit 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be electronic program guide information including broadcast information such as a start time and an end time of a broadcast program aired on each channel.

Meanwhile, the block diagram of the control unit 170 shown in FIG. 3 is only a block diagram for an embodiment of the present invention, and each component of the block diagram is integrated, added, and Or can be omitted.

In particular, the frame rate conversion unit 350 and the formatter 360 are not provided in the control unit 170 and may be provided separately, or may be provided separately as a single module.

4 is an internal block diagram of the remote control device of FIG. 2.

Referring to FIG. 4, the remote control device 200 includes a wireless communication unit 425, a user input unit 430, a sensor unit 440, an output unit 450, a power supply unit 460, a storage unit 470, And/or a control unit 480.

The wireless communication unit 425 may transmit and receive signals between the image display device 100 and each other.

In this embodiment, the remote control device 200 may include an RF module 421 capable of transmitting and receiving signals to and from the image display device 100 according to a radio frequency (RF) communication standard. In addition, the remote control device 200 may include an IR module 423 capable of transmitting and receiving signals to and from the image display device 100 according to an infrared radiation (IR) communication standard.

The remote control device 200 may transmit a signal including information about the movement of the remote control device 200 to the image display device 100 through the RF module 421. The remote control device 200 may receive a signal transmitted from the image display device 100 through the RF module 421.

The remote control device 200 may transmit a command regarding power on/off, channel change, volume change, etc. to the image display device 100 through the IR module 423.

The user input unit 430 may include a keypad, a button, a touch pad, and a touch screen. A user may input a command related to the image display device 100 to the remote control device 200 by manipulating the user input unit 430.

When the user input unit 430 includes a hard key button, the user may input a command related to the image display device 100 to the remote control device 200 through a push operation of the hard key button.

When the user input unit 430 includes a touch screen, the user may input a command related to the image display device 100 to the remote control device 200 by touching a soft key on the touch screen.

Meanwhile, the user input unit 430 may include various types of input means that a user can manipulate, such as a scroll key or a jog key, and the present embodiment does not limit the scope of the present invention.

The sensor unit 440 may include a gyro sensor 441 or an acceleration sensor 443. The gyro sensor 441 may sense the movement of the remote control device 200.

The gyro sensor 441 may sense information on the operation of the remote control device 200 based on the x, y, and z axes. The acceleration sensor 443 may sense information about a moving speed of the remote control device 200. Meanwhile, the sensor unit 440 may further include a distance measuring sensor capable of sensing a distance to the display 180.

The output unit 450 may output an image or audio signal corresponding to an operation of the user input unit 430 or corresponding to a signal transmitted from the image display device 100. Through the output unit 450, the user may recognize whether the user input unit 430 is manipulated or whether the image display device 100 is controlled.

The output unit 450 includes an LED module 451 that lights up when a user input unit 430 is manipulated or a signal is transmitted and received with the image display device 100 through the wireless communication unit 425, a vibration module 453 that generates vibration, A sound output module 455 for outputting sound and/or a display module 457 for outputting an image may be provided.

The power supply unit 460 may supply power to each component of the remote control device 200. The power supply unit 460 may stop supplying power when the remote control device 200 has not moved for a predetermined period of time, thereby reducing power waste. The power supply unit 460 may resume power supply when a predetermined key provided in the remote control device 200 is operated.

The storage unit 470 may store various types of programs and application data necessary for controlling or operating the remote control device 200.

When the remote control device 200 wirelessly transmits and receives signals through the image display device 100 and the RF module 421, the remote control device 200 and the image display device 100 transmits a signal through a predetermined frequency band. You can send and receive. The control unit 480 of the remote control device 200 stores information about a frequency band through which signals can be transmitted and received wirelessly with the image display device 100 paired with the remote control device 200 in the storage unit 470 And refer to it.

The controller 480 may include at least one processor, and may control the overall operation of the remote control device 200 by using the processor included therein.

The control unit 480 transmits a signal corresponding to a predetermined key operation of the user input unit 430 or a signal corresponding to the movement of the remote control device 200 sensed by the sensor unit 440 through the wireless communication unit 425. It can be transmitted to the display device 100.

The user input interface unit 150 of the image display device 100 includes a wireless communication unit 151 capable of transmitting and receiving signals wirelessly with the remote control device 200, and a pointer corresponding to the operation of the remote control device 200. A coordinate value calculator 415 capable of calculating the coordinate value of may be provided.

The user input interface unit 150 may wirelessly transmit and receive signals with the remote control device 200 through the RF module 412. In addition, through the IR module 413, the remote control device 200 may receive a signal transmitted according to the IR communication standard.

The coordinate value calculation unit 415 corrects the hand shake or error from the signal corresponding to the operation of the remote control device 200 received through the wireless communication unit 151 and displays the coordinates of the pointer 205 to be displayed on the display 170. Values (x,y) can be calculated.

The transmission signal of the remote control device 200 input to the image display device 100 through the user input interface unit 150 may be transmitted to the controller 180 of the image display device 100. The control unit 180 of the image display device 100 determines information on the operation of the remote control device 200 and key manipulation from the signal transmitted from the remote control device 200, and the image display device 100 is correspondingly Can be controlled.

As another example, the remote control device 200 may calculate a pointer coordinate value corresponding to the operation and output it to the user input interface unit 150 of the image display device 100. In this case, the user input interface unit 150 of the image display device 100 may transmit information on the received pointer coordinate value to the controller 180 without a separate hand shake or error correction process.

In addition, as another example, the coordinate value calculation unit 415 may be provided inside the control unit 170 instead of the user input interface unit 150 unlike the drawing.

5 is a diagram illustrating a control method of the remote control device of FIG. 2.

Referring to FIG. 5, it can be seen that a pointer 205 corresponding to the remote control device 200 is displayed on the display 180 of the image display device 100.

Referring to FIG. 5A, the user may move or rotate the remote control device 200 up and down, left and right, and back and forth. In this case, the pointer 205 displayed on the display 180 of the image display device 100 may be displayed in response to the movement of the remote control device 200. Since the corresponding pointer 205 is moved and displayed according to movement in 3D space, as shown in the drawing, the remote control device 200 may be referred to as a space remote controller or a 3D pointing device.

Referring to FIG. 5B, when the user moves the remote control device 200 to the left, the pointer 205 displayed on the display 180 of the image display device 100 is also You can see that it moves to the left in response to the movement.

Information on the movement of the remote control device 200 sensed through a sensor of the remote control device 200 may be transmitted to the image display device 100. The image display device 100 may calculate the coordinates of the pointer 205 from information about the movement of the remote control device 200. The image display device 100 may display the pointer 205 to correspond to the calculated coordinates.

Referring to FIG. 5C, while pressing a specific button provided in the remote control device 200, the user can move the remote control device 200 away from the display 180. Accordingly, the selection area in the display 180 corresponding to the pointer 205 may be zoomed in and displayed in an enlarged manner. On the contrary, 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, the display 180 corresponding to the pointer 205 The selected area within may be zoomed out and displayed in a reduced size.

On the other hand, 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 approaches the display 180, the selected area may be zoomed in. .

Meanwhile, when a user presses a specific button in the remote control apparatus 200, recognition of vertical and horizontal movement may be excluded. That is, when the remote control device 200 moves away from or approaches the display 180, up, down, left, and right movements are not recognized, and only forward and backward movements may be recognized. When the user does not press a specific button in the remote control device 200, only the up, down, left, and right movement of the remote control device 200 can be recognized, and accordingly, only the pointer 205 can be moved.

Meanwhile, the moving speed or moving direction of the pointer 205 may correspond to the moving speed or moving direction of the remote control device 200.

6 is a flowchart illustrating a method of operating an image display device according to an exemplary embodiment of the present invention. 7 to 11 are views referenced for explaining a method of operating an image display device.

Referring to FIG. 6, the image display device 100 may execute a power standby mode in operation S610. For example, when power is turned off, the image display device 100 may execute a power standby mode.

In operation S620, the image display device 100 may check whether a power command, which is a command for turning on the power, is received while the power is turned off. For example, the image display device 100 may check whether a signal including a power command is received from the remote control device 200.

In operation S630, when a power command is received, the image display device 100 may check whether a signal is received from the remote control device 200 within a predetermined time after receiving the power command.

The video display device 100 may store data included in the signal received from the remote control device 200 in the storage 140 within a predetermined time after receiving the signal including the power command in operation S640. have. In this case, the signal received from the remote control device 200 may be a signal corresponding to a user input input through the user input unit 450 of the remote control device 200.

In operation S650, the video display device 100 may determine whether a predetermined time has elapsed after receiving the power command.

When a predetermined time has not elapsed after receiving the power command, the video display device 100 may branch to operation S630 and check whether a signal is received from the remote control device 200.

The image display device 100 may store data included in a signal received within a predetermined time in the storage unit 140 in the order in which they are received.

For example, if a signal including data for a mute input, a signal including data for a volume control input, and a signal including data for a numeric key input are sequentially received within a predetermined time, the image The display device 100 may sequentially store data on a mute input, data on a volume control input, and data on a numeric key input in the storage unit 140.

Meanwhile, in operation S660, when a predetermined time has elapsed after receiving the power command, the image display device 100 turns off the power of the image display device 100 according to the data stored in the storage unit 140. You can change the preset setting value in relation to.

For example, when data for a mute input is stored in the storage unit 140, the image display device 100 sets a preset value according to the volume at the time when the power is turned off. ) Can be changed to be muted.

For example, when data for inputting a numeric key is stored in the storage unit 140, the video display device 100 sets a preset value according to a broadcast channel at a time when the power is turned off. In addition to (on), the broadcast channel corresponding to the numeric key input can be changed to be selected.

Meanwhile, the image display apparatus 100 may determine a setting value to be changed among preset setting values in consideration of a correlation between data stored in the storage unit 140.

For example, when data on a mute input and data on a volume increase are sequentially stored in the storage unit 140, the image display device 100 is A preset setting value can be changed so that audio is output at a volume that is increased by the amount of data corresponding to the volume increase.

On the other hand, for example, when data for volume increase and data for mute input are sequentially stored in the storage unit 140, the image display device 100 may be in a mute state with power on. You can change the preset setting value.

The image display device 100 may display an image through the display 180 according to a setting value changed according to data stored in the storage unit 140 in operation S670.

Meanwhile, when an image is displayed according to a changed setting value, the image display device 100 may initialize data stored in the storage unit 140 by deleting it from the storage unit 140.

On the other hand, the image display device 100, when a signal is not received from the remote control device 200 for a predetermined period of time after receiving the power command, skips the S660 operation of changing a preset setting value and adjusts the preset setting value. Accordingly, an image may be displayed through the display 180.

In this case, the image display device 100 may display an image through the display 180 according to a preset value in relation to a time point at which the image display device 100 is powered off.

Meanwhile, in the present drawing, it is described that data included in a signal received within a predetermined time after receiving a power command is stored, but the present invention is not limited thereto, and when a signal is received within a predetermined time after receiving a power command , Data may be stored based on whether the signal is received again within a predetermined time from the time when the corresponding signal is received.

Referring to FIG. 7, when the user presses the power on/off button 701 of the remote control device 200 while the image display device 100 is powered off, the power is turned on. A power command, which is a command to perform, may be transmitted from the image display device 100 to the image display device 100.

On the other hand, if a signal is no longer received from the remote control device 200 within a predetermined time after receiving the power command, the image display device 100 may display the image 700 of the first broadcast channel according to a preset setting value. (Example: Channel 7) can be displayed. In this case, the first broadcast channel may be a channel selected by a user and displayed through the image display device 100 at a time when the power of the image display device 100 is turned off.

Meanwhile, the image display device 100 may display the image 700 of the first broadcast channel and output audio according to a volume set at a time when the power of the image display device 100 is turned off.

Referring to FIG. 8A, after the user presses the power on/off button 801 of the remote control device 200 while the image display device 100 is powered off, the number key '3' within a predetermined time. When '802' is pressed, the remote control device 200 may receive a signal including data for '3' within a predetermined time after receiving the power command.

At this time, the image display device 100 may store data for '3' in the storage unit 140, and based on the data for '3' stored in the storage unit 130, The set setting value can be changed to a second broadcast channel (eg, channel 3).

The video display device 100 may display the image 810 of the second broadcast channel according to the changed setting value.

Meanwhile, referring to FIG. 8B, after the user presses the power on/off button 801 of the remote control device 200 while the image display device 100 is powered off, the numeric keys are displayed within a predetermined time. When '2' (803), number key '8' (804), and number key '1' (805) are pressed in order, the remote control device 200 receives '2' and '2' within a predetermined time after receiving the power command. Signals each including data for 8'and '1' may be sequentially received.

At this time, the image display device 100 may sequentially store data for '2', '8', and '1' in the storage 140, and '2', '2' stored in the storage 130 Based on the data for 8'and '1', a preset setting value related to the broadcast channel may be changed to an image of the third broadcast channel (eg, channel 281).

The image display device 100 may display an image 820 of a third broadcast channel according to the changed setting value.

Referring to FIG. 9A, after a user presses the power on/off button 901 of the remote control device 200 while the image display device 100 is powered off, the mute button 902 is displayed within a predetermined time. When) is pressed, the remote control device 200 may receive a signal including data on mute within a predetermined time after receiving the power command.

At this time, the image display device 100 may store mute data in the storage unit 140, and mute a preset setting value related to the volume based on the mute data stored in the storage unit 130. It can be changed to the minimum volume corresponding to the state (eg, volume '0').

The video display device 100 may not output audio according to a set value changed to a mute state, and may display an indicator 910 notifying the user that the current mute state is on the screen.

Meanwhile, since the preset setting value related to the broadcast channel is not changed, the video display device 100 can display the image 700 of the first broadcast channel (eg, channel 7) according to the preset setting value. have.

Meanwhile, referring to FIG. 9B, after the user presses the power on/off button 901 of the remote control device 200 while the image display device 100 is powered off, the sound is muted within a predetermined time. When the button 902 and the volume increase button 903 are pressed, the remote control device 200 may sequentially receive signals including data on mute and volume increase within a predetermined time after receiving the power command. In this drawing, after the user presses the mute button 902, it will be described as an example that the user presses the volume increase button 903 twice.

In this case, the image display device 100 may sequentially store data on mute and increase in volume in the storage unit 140, and based on data on mute and increase in volume stored in order in the storage unit 130, A preset setting value related to the volume can be changed from the minimum volume corresponding to the muted state to a volume (eg, volume '2') that is increased by the amount of data for volume increase.

The video display device 100 may output audio according to a changed setting value (eg, volume '2'), and display an indicator 910 notifying the user of the currently set volume (eg, volume '2'). Can be displayed.

On the other hand, unlike FIG. 9B, when the user presses the power on/off button 901 of the remote control device 200, and then presses the volume increase button 903 and the mute button 902 in order within a predetermined time, it is saved. In the unit 140, data on volume increase and mute may be sequentially stored.

At this time, according to the data stored in the storage unit 140, the preset setting value for the volume is increased by the amount of data for the volume increase, and then changed back to the minimum volume corresponding to the mute state (e.g., volume '0'). Can be. Accordingly, the video display device 100 may not output audio according to the set value changed to the mute state.

That is, even when the same data is stored in the storage unit 140, a preset setting value may be differently changed according to the order in which each data is stored.

Meanwhile, referring to FIG. 9C, after the user presses the power on/off button 901 of the remote control device 200 while the image display device 100 is powered off, the sound is muted within a predetermined time. When the button 902 and the number key '3' 904 are pressed, the remote control device 200 may sequentially receive a signal including data for mute and '3' within a predetermined time after receiving the power command. have.

At this time, the image display device 100 may store data for mute and '3' in order in the storage unit 140, and based on data for mute and '3' stored in order in the storage unit 130 Thus, a preset setting value related to the volume may be changed to a minimum volume corresponding to a mute state (eg, silent), and a preset set value related to a broadcast channel may be changed to a second broadcast channel (eg, channel 3). .

The video display device 100 may not output audio according to the set value changed to the mute state, and displays the image 810 of the second broadcasting channel together with an indicator 910 notifying the user that the current mute state is Can be marked on.

That is, as shown in FIG. 9C, the image display device 100 may determine a set value that is a change target among preset set values as a volume and a broadcast channel in consideration of a correlation between data stored in the storage unit 140.

Referring to FIG. 10, after the user presses the power on/off button 1001 of the remote control device 200 while the image display device 100 is powered off, the broadcast schedule button within a predetermined time. When (1002) is pressed, the remote control device 200 may receive a signal including data for a broadcast schedule within a predetermined time after receiving the power command.

In this case, the video display device 100 may store data on the broadcast schedule in the storage unit 140, and based on the data on the broadcast schedule stored in the storage unit 130, the broadcast schedule may be stored in a preset setting value. You can add a setting value for it.

The video display device 100 may display an image 1000 for the broadcast schedule according to a setting value for the broadcast schedule.

On the other hand, when the image 1000 for the broadcast schedule is terminated, the video display device 100 displays the image 700 of the first broadcast channel displayed at the time when the power of the video display device 100 is turned off. While displaying, audio may be output according to a volume set at a time when the power of the image display apparatus 100 is turned off.

Referring to FIG. 11, after the user presses the power on/off button 1101 of the remote control device 200 while the image display device 100 is powered off, the application button ( When 1102) is pressed, the remote control device 200 may receive a signal including data on the application within a predetermined time after receiving the power command.

In this case, the image display device 100 may store data on the application in the storage unit 140, and based on the data on the application stored in the storage unit 130, the set value for the application is set to a preset value. Can be added.

The video display device 100 may display an image 1100 for an application according to a setting value for an application, and when a user input for selecting a specific application is received, it may execute the selected application according to the user input. have.

As described above, according to various embodiments of the present invention, when the image display device 100 is turned on while the power of the image display device 100 is turned off, the preset setting value is set even before the image is displayed on the screen. It is possible to easily and variously change according to a user input received through the remote control device 200, and to directly display an image on the screen according to the changed setting value, thereby improving user convenience.

The accompanying drawings are only for making it easier to understand the embodiments disclosed in the present specification, and the technical spirit disclosed in the present specification is not limited by the accompanying drawings, and all changes and equivalents included in the spirit and scope of the present invention It should be understood to include water or substitutes.

Meanwhile, the method of operating an image display device of the present invention can be implemented as a code that can be read by a processor on a recording medium that can be read by a processor provided in the image display device. The processor-readable recording medium includes all types of recording devices that store data that can be read by the processor. Examples of recording media that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., and also include those implemented in the form of carrier waves such as transmission through the Internet. . In addition, the recording medium readable by the processor may be distributed over a computer system connected through a network, so that code readable by the processor may be stored and executed in a distributed manner.

In addition, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications are possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

Claims (10)

In the image display device,
display;
An external device interface unit for communicating with the remote control device; And
Including a control unit,
The control unit,
When a power command for turning on the power of the video display device is received while the power of the video display device is turned off, a signal from the remote control device for a predetermined time after receiving the power command Check whether it is received,
When at least one signal is received during the predetermined time, an image is displayed through the display based on data included in the at least one signal,
When at least one signal is not received during the predetermined time, an image is displayed through the display according to a preset value in relation to power off of the image display device. . The method of claim 1,
The control unit, when at least one signal is received during the predetermined time, changes the preset setting value based on data included in the at least one signal,
The preset setting value is a setting value related to at least one of a broadcast channel, an audio volume, an application, and a connection state of an external device at a time when the power of the video display device is turned off. The method of claim 2,
Contains more memory,
The control unit,
Storing data included in the at least one signal received during the predetermined time in the memory in the order in which they were received,
And changing the preset setting value based on the data sequentially stored in the memory. The method of claim 3,
The control unit,
And determining a setting value to be changed among the preset setting values in consideration of a correlation between the data stored in the order. The method of claim 4,
The control unit,
When the preset setting value is changed, the stored data is deleted from the memory. In the method of operating an image display device,
When a power command for turning on the power of the video display device is received while the power of the video display device is turned off, a signal from the remote control device is sent for a predetermined time after receiving the power command. Checking whether or not it is received;
A first display operation of displaying an image based on data included in the at least one signal when at least one signal is received during the predetermined time; And
Operation of an image display device including a second display operation of displaying an image according to a preset value in connection with power off of the image display device when at least one signal is not received during the predetermined time Way. The method of claim 6,
The first display operation is,
Changing the preset setting value based on data included in the at least one signal; And
And displaying the image according to the changed setting value,
The preset setting value is,
And a setting value related to at least one of a broadcast channel, an audio volume, an application, and a connection state of an external device at a time when the video display device is powered off. The method of claim 7,
The operation of changing the preset setting value,
Storing data included in the at least one signal received during the predetermined time in a memory in the order in which they are received; And
And changing the preset setting value based on the data sequentially stored in the memory. The method of claim 8,
The operation of changing the preset setting value,
And determining a set value to be changed from among the preset set values in consideration of a correlation between the data stored in the order. The method of claim 9,
The operation of changing the preset setting value,
And when the preset setting value is changed, deleting the stored data from the memory.

Images