KR102254857B1 - Image display apparatus - Google Patents

Abstract

The present invention relates to an image display device. According to an embodiment of the present invention, the image display device comprises: a housing; a display; an internal speaker outputting sound; a communication unit transmitting and receiving information with an external speaker; and a control unit outputting an audio signal by processing the audio signal on input content, wherein the control unit can differently set the audio signal output to at least one of the internal speaker or the external speaker in accordance with a direction in which the internal speaker is directed and whether the external speaker is connected. Accordingly, the sound with improved sound quality can be provided.

Description

Image display apparatus

The present invention relates to a video display device, and more particularly, to a video display device capable of providing sound of improved quality by differently setting an output audio signal according to a direction in which an internal speaker faces and whether or not an external speaker is connected. will be.

Home theater systems are widely known as sound systems for reproducing 3D audio. These systems are generally composed of 5.1 channels or more. In addition, a sound system supporting 5.1.2 channels including a height sound has recently been released. The 5.1.2 channel is a system in which a front and upstream height 2 channel is added to the existing 5.1 channel.

However, it is not easy to have such a home theater system at home due to space constraints and the like. As an alternative to this, sound bars and headphones have been developed and used.

When the sound bar is used in connection with a video display device such as a TV, in general, audio is not output from the video display device. Since most TVs include a pair of speakers located at the bottom of the product and facing downward, there is a problem that proper sound effects cannot be obtained when audio is output together with a sound bar.

In addition, when the installation direction of the TV is changed in order to utilize the speaker built into the TV, there is a problem that the direction of the image displayed through the TV and the sound outputted is not properly set.

In order to solve the above problems, an object of the present invention is to provide an image display device capable of providing sound of improved quality by differently setting an output audio signal according to a direction in which an internal speaker is facing and whether or not an external speaker is connected. .

In addition, in order to solve the above problems, an object of the present invention is to provide an image display device capable of enhancing user convenience by rotating a device so that the direction of an internal speaker is automatically changed according to whether or not an external speaker is connected.

In addition, in order to solve the above problems, an object of the present invention is to provide an image display device capable of increasing the sensitivity of receiving a user input signal by including a plurality of sensors at each of the upper and lower ends of the rotating device.

The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

The video display device according to an embodiment of the present invention for achieving the above object includes a housing, a display, an internal speaker that outputs sound, a communication unit that transmits and receives information to and from an external speaker, and processes an audio signal for input content. And a control unit that outputs an audio signal, and the control unit may differently set an audio signal output to at least one of the internal speaker and the external speaker according to a direction in which the internal speaker is directed and whether an external speaker is connected.

On the other hand, in the video display device according to an embodiment of the present invention for achieving the above object, when the direction in which the internal speaker is directed is upward and the external speaker is connected, the first audio signal is output to the internal speaker, and the communication unit The second audio signal may be output through the external speaker.

Meanwhile, in the video display device according to an embodiment of the present invention for achieving the above object, the signal-processed audio signal is a 5.1.2 channel signal, and the first audio signal is a height 2 channel signal among 5.1.2 channel signals. , The second audio signal may be a 5.1 channel signal among 5.1.2 channel signals.

Meanwhile, in the video display device according to an embodiment of the present invention for achieving the above object, the signal-processed audio signal includes a voice signal and a background sound or sound effect signal, and the first audio signal is a voice signal, and the second audio signal is The signal may be a background sound or a sound effect signal.

On the other hand, the video display device according to an embodiment of the present invention for achieving the above object further comprises a user input interface unit, the user input interface unit is located at each of the upper and lower portions of the display, the user input signal from the remote control device It may include a plurality of sensors for receiving.

Meanwhile, in the video display device according to an embodiment of the present invention for achieving the above object, the control unit may determine a direction in which the internal speaker is directed from rotation setting information input through the user input interface unit.

Meanwhile, the image display device according to an embodiment of the present invention for achieving the above object further includes a sensor unit including at least one of a gravity sensor, a gyro sensor, or an acceleration sensor, and the control unit includes a signal measured by the sensor unit. Based on, it is possible to determine the direction in which the internal speaker is directed.

Meanwhile, in the image display device according to an embodiment of the present invention for achieving the above object, the controller may control the image displayed on the display to be rotated according to the rotation state of the display.

Meanwhile, in the video display device according to an embodiment of the present invention for achieving the above object, the external speaker may be connected to the communication unit through any one of HDMI cable connection, Bluetooth pairing, or WiFi communication connection.

Meanwhile, the video display device according to an embodiment of the present invention for achieving the above object further includes a rotation bracket mounted on the rear surface of the housing to rotate the housing, and the controller controls the rotation bracket when an external speaker is connected. Accordingly, the housing is rotated so that the direction of the internal speaker is upward, and when the connection with the external speaker is disconnected, the housing can be rotated so that the direction of the internal speaker is downward by controlling the rotation bracket.

Details of other embodiments are included in the detailed description and drawings.

According to the present invention, there are the following effects.

The video display device according to an exemplary embodiment of the present invention has an effect of providing improved quality sound by differently setting an output audio signal according to a direction in which an internal speaker is directed and whether or not an external speaker is connected.

In addition, the video display device according to an embodiment of the present invention has an effect of increasing user convenience by rotating the device so that the direction of the internal speaker is automatically changed according to whether or not an external speaker is connected.

In addition, the image display device according to an exemplary embodiment of the present invention includes a plurality of sensors at each of the upper and lower ends of the rotating device, thereby increasing the sensitivity of receiving a user input signal.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the description of the claims.

1 is a diagram illustrating a video display device and an external speaker according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating an example of an internal block diagram of the video display device of FIG. 1.
3 is a diagram illustrating an example of an internal block diagram of the signal processing unit of FIG. 2.
4A is a diagram illustrating a control method of the remote control device of FIG. 2.
4B is an internal block diagram of the remote control device of FIG. 2.
5A to 5D are diagrams illustrating various examples of outputting audio according to a connection state of an external speaker in a video display device according to an embodiment of the present invention.
6A to 6B are diagrams showing various examples of audio output separately from the video display device of the present invention and an external speaker.
7 is a diagram illustrating an example of outputting an audio signal from a video display device and an external speaker of the present invention.
8A to 8B are diagrams illustrating an example of receiving a user input according to rotation of the video display device of the present invention.
9A to 9B are diagrams showing various examples of determining the direction of an internal speaker of the present invention.
10 is a diagram illustrating an example of rotating an image displayed according to a direction of an image display device of the present invention.
11 is a view showing the structure of a rotation bracket according to an embodiment of the present invention.
12 to 13 are views showing various examples of rotating the image display device of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Regardless of the reference numerals, the same or similar elements are assigned the same reference numerals, and redundant descriptions thereof will be omitted. The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of writing the specification, and do not themselves have a distinct meaning or role from each other. Therefore, the "module" and "unit" may be used interchangeably with each other.

In addition, in describing the embodiments disclosed in the present specification, when it is determined that a detailed description of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention It should be understood to include equivalents or substitutes.

Terms including ordinal numbers such as first and second may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

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 elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

1 is a diagram illustrating an image display device according to an exemplary embodiment of the present invention.

Referring to the drawings, an image display device 100 according to an embodiment of the present invention includes a housing 195, a display 180, internal speakers 185a and 185b, a communication unit 130m, and a control unit 170m. It can be done, and can be connected to the external speaker 500.

The display 180 may display an image.

The housing 195 may have a display 180 installed on its front surface, and may include internal speakers 185a and 185b, a communication unit 130m, and a control unit 170m therein.

The internal speakers 185a and 185b may be installed near both corners of the lower end or the upper end of the housing 195, and may face downward (downward) or upward (upward) direction of the housing 195. The internal speakers 185a and 185b may output an audio signal output from the audio output unit 185 to the outside of the video display device 100.

When the external speaker 500 and the video display device 100 are connected, the communication unit 130m may transmit and receive information with the external speaker 500.

The controller 170m may output an audio signal by performing audio signal processing on the input content. Specifically, the control unit 170m is an audio output from at least one of the internal speakers 185a and 185b or the external speaker 500 according to the direction in which the internal speakers 185a and 185b face and whether the external speaker 500 is connected. The signal can be set differently.

Accordingly, the image display device 100 may provide sound with improved quality.

Meanwhile, the display 180 may include any one of various types of panels. For example, the display 180 may include any one of a liquid crystal display panel (LCD panel), an organic light emitting panel (OLED panel), an inorganic light emitting panel (LED panel), and the like.

FIG. 2 is a diagram illustrating an example of an internal block diagram of the video display device of FIG. 1.

Referring to the drawings, an image display device 100 according to an embodiment of the present invention includes an image receiving unit 105, a storage unit 140, a user input interface unit 150, a sensor unit (not shown), and a signal processing unit. It may include a display 170, a display 180, an audio output unit 185, and an illuminance sensor 197.

The image receiving unit 105 may include a tuner unit 110, a demodulation unit 120, a network interface unit 135, and an external device interface unit 130.

Meanwhile, unlike the drawings, the image receiving unit 105 may include only the tuner unit 110, the demodulation unit 120, and the external device interface unit 130. That is, the network interface unit 135 may not be included.

The tuner unit 110 selects a channel selected by a user from among radio frequency (RF) broadcast signals received through an antenna (not shown) or an RF broadcast signal corresponding to all pre-stored channels. In addition, the selected RF broadcast signal is converted into an intermediate frequency signal or a baseband video or audio signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted to a digital IF signal (DIF), and if the selected RF broadcast signal is an analog broadcast signal, it is converted to 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 signal processing unit 170.

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 receives the digital IF signal DIF converted by the tuner unit 110 and performs a demodulation operation.

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 demodulation unit 120 may be input to the signal processing unit 170. The signal processing unit 170 performs demultiplexing, video/audio signal processing, and the like, and then outputs an image to the display 180 and outputs an audio to the audio output unit 185.

The external device interface unit 130 may transmit or receive a connected external device (not shown), for example, a set-top box and data. 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 is 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, an external speaker, etc. through wired/wireless connection. It can be used, and input/output operations with external devices can also be performed.

The A/V input/output unit may receive video and audio signals from an external device. Meanwhile, the wireless communication unit (not shown) may perform short-range wireless communication with another electronic device.

Through such a wireless communication unit (not shown), the external device interface unit 130 may exchange data with an adjacent mobile terminal (not shown). 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 provides 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 wireless communication unit (not shown).

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

In addition, the storage unit 140 may perform a function for temporary storage of a video, audio, or data signal input to the external device interface unit 130. In addition, the storage unit 140 may store information on a predetermined broadcast channel through a channel storage function such as a channel map.

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

The user input interface unit 150 transmits a signal input by the user to the signal processing unit 170 or transmits a signal from the signal processing unit 170 to the user.

For example, the remote control device 700 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). The user input signal input from the signal processing unit 170 is transmitted to the signal processing unit 170, or a user input signal input from a sensor unit (not shown) that senses the user's gesture is transmitted to the signal processing unit 170, or from the signal processing unit 170. The signal of may be transmitted to the sensor unit (not shown).

The signal processing unit 170, through the tuner unit 110, the demodulation unit 120, the network interface unit 135, or the external device interface unit 130, demultiplexes the input stream or processes demultiplexed signals. Thus, a signal for video or audio output can be generated and output.

For example, the signal processing unit 170 receives a broadcast signal or an HDMI signal received from the image receiving unit 105, performs signal processing based on the received broadcast signal or HDMI signal, and receives the processed image signal. Can be printed.

The image signal processed by the signal processor 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 signal processing unit 170 may be input to an external output device through the external device interface unit 130.

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

Although not shown in FIG. 2, the signal processing unit 170 may include a demultiplexing unit, an image processing unit, and the like. That is, the signal processing unit 170 may perform various signal processing, and accordingly, may be implemented in the form of a system on chip (SOC). This will be described later with reference to FIG. 3.

In addition, the signal processing unit 170 may control the overall operation of the image display apparatus 100. For example, the signal processing unit 170 may control the tuner unit 110 to select (Tuning) an RF broadcast corresponding to a channel selected by the user or a pre-stored channel.

In addition, the signal processing unit 170 may control the image display device 100 by a user command or an internal program input through the user input interface unit 150.

Meanwhile, the signal processing unit 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 signal processing unit 170 may cause a predetermined object to be displayed 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 signal processing unit 170 may recognize a user's location based on an image captured by a photographing unit (not shown). For example, a distance (z-axis coordinate) between the user and the image display device 100 may be determined. In addition, x-axis coordinates and y-axis coordinates in the display 180 corresponding to the user's location may be identified.

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 to be processed by the signal processing unit 170 to provide a driving signal. Create

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 signal processing unit 170 and outputs it as a voice.

The photographing unit (not shown) photographs the user. The photographing unit (not shown) may be implemented with one camera, but is not limited thereto, and may be implemented with a plurality of cameras. Image information captured by the photographing unit (not shown) may be input to the signal processing unit 170.

The signal processing unit 170 may detect a user's gesture based on an image captured from a photographing unit (not shown) or a signal sensed from a sensor unit (not shown), or a combination thereof.

The illuminance sensor 197 measures the amount of light around the image display device 100. Information on the amount of light measured by the illuminance sensor 197 may be input to the signal processing unit 170.

The signal processor 170 may control the brightness of the display 180 based on the amount of light information measured by the illuminance sensor 197.

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

Specifically, the power supply unit 190 may include a converter that converts AC power to DC power and a dc/dc converter that converts the level of the DC power.

The remote control device 700 transmits a user input to the user input interface unit 150. To this end, the remote control device 700 may use Bluetooth, Radio Frequency (RF) communication, infrared (IR) communication, Ultra Wideband (UWB), ZigBee, or the like. In addition, the remote control device 700 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 700.

Meanwhile, the video display device 100 may be a digital broadcast receiver capable of receiving a fixed or mobile digital broadcast.

Meanwhile, a block diagram of the image display device 100 shown in FIG. 2 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display device 100 that is actually implemented. 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 a diagram illustrating an example of an internal block diagram of the signal processing unit of FIG. 2.

Referring to the drawings, the signal processing unit 170 according to an embodiment of the present invention may include a demultiplexer 310, an image processing unit 320, a processor 330, and an audio processing unit 370. In addition, a data processing unit (not shown) may be further included.

The demultiplexer 310 demultiplexes 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 signal processing on an input image. For example, the image processing unit 320 may perform image processing of an image signal demultiplexed from the demultiplexer 310.

To this end, the image processing unit 320 includes an image decoder 325, a scaler 335, an image quality processing unit 635, an image encoder (not shown), an OSD generator 340, a frame image rate conversion unit 350, And a formatter 360 and the like.

The video decoder 325 decodes the demultiplexed video signal, and the scaler 335 performs scaling so that the resolution of the decoded video 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 scaler 335 may scale an input video signal that has been decoded by the video decoder 325 or the like.

For example, the scaler 335 may upscale when the size or resolution of the input image signal is small, and downscale when the size or resolution of the input image signal is large.

The image quality processing unit 635 may perform image quality processing on an input image signal that has been decoded by the image decoder 325 or the like.

For example, the image quality processing unit 635 may perform noise removal processing of the input image signal, extend the resolution of the grayscale of the input image signal, improve the image resolution, or perform high dynamic range (HDR)-based signal processing, or , The frame image rate may be varied, or panel characteristics, in particular, image quality processing corresponding to the organic light emitting panel may be performed.

The OSD generator 340 generates an OSD signal by itself or according to a user input. For example, based on a user input signal, a signal for displaying various types of information as a 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 based on the pointing signal input from the remote control device 700. In particular, such a pointer may be generated by a pointing signal processing unit, and the OSD generating unit 240 may include such a pointing signal processing unit (not shown). Of course, it is possible that the pointing signal processing unit (not shown) is not provided in the OSD generating unit 240 and is provided separately.

The frame rate converter (FRC) 350 may convert a frame image rate of an input image. Meanwhile, the frame image rate conversion unit 350 may output as it is without additional frame image rate conversion.

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

In particular, the formatter 360 may change the format of the image signal to correspond to the display panel.

The processor 330 may control overall operations within the image display apparatus 100 or within the signal processing unit 170.

For example, the processor 330 may control the tuner 110 to select (Tuning) an RF broadcast corresponding to a channel selected by the user or a pre-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 and the image processor 320 in the signal processor 170.

Meanwhile, the audio processing unit 370 in the signal processing unit 170 may perform speech processing of the demultiplexed speech signal. To this end, the audio processing unit 370 may include various decoders.

In addition, the audio processing unit 370 in the signal processing unit 170 may process a base, a treble, and a volume control.

A data processing unit (not shown) in the signal processing unit 170 may perform data processing on a 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, a block diagram of the signal processing unit 170 shown in FIG. 3 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the signal processing unit 170 that is actually implemented.

In particular, the frame image rate converter 350 and the formatter 360 may be separately provided in addition to the image processing unit 320.

4A is a diagram illustrating a control method of the remote control device of FIG. 2.

As illustrated in (a) of FIG. 4A, a pointer 705 corresponding to the remote control device 700 is displayed on the display 180.

The user can move or rotate the remote control device 700 up and down, left and right (FIG. 4A (b)), and back and forth (FIG. 4A (c)). The pointer 705 displayed on the display 180 of the image display device corresponds to the movement of the remote control device 700. Since the corresponding pointer 705 is moved and displayed according to movement in 3D space, as shown in the drawing, the remote control device 700 may be referred to as a space remote controller or a 3D pointing device.

4A(b) illustrates that when the user moves the remote control device 700 to the left, the pointer 705 displayed on the display 180 of the image display device also moves to the left in response thereto.

Information on the movement of the remote control device 700 sensed through the sensor of the remote control device 700 is transmitted to the image display device. The image display device may calculate the coordinates of the pointer 705 from information about the movement of the remote control device 700. The image display device may display the pointer 705 to correspond to the calculated coordinates.

4A (c) illustrates a case in which a user moves the remote control device 700 away from the display 180 while pressing a specific button in the remote control device 700. Accordingly, the selection area in the display 180 corresponding to the pointer 705 can be zoomed in and displayed in an enlarged manner. Conversely, when the user moves the remote control device 700 to be close to the display 180, the selection area in the display 180 corresponding to the pointer 705 may be zoomed out and displayed in a reduced size. On the other hand, when the remote control device 700 moves away from the display 180, the selection area is zoomed out, and when the remote control device 700 approaches the display 180, the selection area may be zoomed in.

On the other hand, when a specific button in the remote control device 700 is pressed, the recognition of vertical and horizontal movement may be excluded. That is, when the remote control device 700 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 a specific button in the remote control device 700 is not pressed, only the pointer 705 is moved according to the up, down, left, and right movement of the remote control device 700.

Meanwhile, the moving speed or moving direction of the pointer 705 may correspond to the moving speed or moving direction of the remote control device 700.

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

Referring to the drawings, the remote control device 700 includes a wireless communication unit 425, a user input unit 435, a sensor unit 440, an output unit 450, a power supply unit 460, a storage unit 470, It may include a control unit 480.

The wireless communication unit 425 transmits and receives signals to and from any one of the image display apparatuses according to the embodiments of the present invention described above. Among the image display devices according to embodiments of the present invention, one image display device 100 will be described as an example.

In this embodiment, the remote control device 700 may include an RF module 421 capable of transmitting and receiving signals to and from the image display device 100 according to an RF communication standard. In addition, the remote control device 700 may include an IR module 423 capable of transmitting and receiving signals to and from the image display device 100 according to the IR communication standard.

In this embodiment, the remote control device 700 transmits a signal containing information about the movement of the remote control device 700 to the image display device 100 through the RF module 421.

In addition, the remote control device 700 may receive a signal transmitted from the image display device 100 through the RF module 421. In addition, the remote control device 700 may transmit a command regarding power on/off, channel change, volume change, etc. to the image display device 100 through the IR module 423 as needed.

The user input unit 435 may be composed of a keypad, a button, a touch pad, or a touch screen. A user may input a command related to the image display device 100 to the remote control device 700 by manipulating the user input unit 435. When the user input unit 435 includes a hard key button, the user can input a command related to the image display device 100 to the remote control device 700 through a push operation of the hard key button. When the user input unit 435 includes a touch screen, the user may input a command related to the image display device 100 to the remote control device 700 by touching a soft key on the touch screen. In addition, the user input unit 435 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 information about the movement of the remote control device 700.

For example, the gyro sensor 441 may sense information on the operation of the remote control device 700 based on the x, y, and z axes. The acceleration sensor 443 may sense information about a moving speed of the remote control device 700. Meanwhile, a distance measurement sensor may be further provided, thereby 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 435 or a signal transmitted from the image display apparatus 100. Through the output unit 450, the user may recognize whether the user input unit 435 is manipulated or whether the image display device 100 is controlled.

As an example, the output unit 450 includes an LED module 451 that lights up when a user input unit 435 is manipulated or a signal is transmitted and received with the image display device 100 through the wireless communication unit 425, and a vibration module that generates vibration ( 453), a sound output module 455 that outputs sound, or a display module 457 that outputs an image.

The power supply unit 460 supplies power to the remote control device 700. The power supply unit 460 may reduce power waste by stopping power supply when the remote control device 700 does not move for a predetermined period of time. The power supply unit 460 may resume power supply when a predetermined key provided in the remote control device 700 is operated.

The storage unit 470 may store various types of programs and application data necessary for controlling or operating the remote control device 700. If the remote control device 700 transmits and receives signals wirelessly through the image display device 100 and the RF module 421, the remote control device 700 and the image display device 100 transmit signals through a predetermined frequency band. Send and receive. The control unit 480 of the remote control device 700 stores information about the image display device 100 paired with the remote control device 700 and a frequency band through which signals can be transmitted and received in the storage unit 470, and You can refer to it.

The controller 480 controls all matters related to the control of the remote control device 700. The control unit 480 transmits a signal corresponding to a predetermined key operation of the user input unit 435 or a signal corresponding to the movement of the remote control device 700 sensed by the sensor unit 440 through the wireless communication unit 425. Can be transmitted to (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 700, and a pointer corresponding to the operation of the remote control device 700. 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 700 through the RF module 412. In addition, through the IR module 413, the remote control device 700 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 700 received through the wireless communication unit 151, and the coordinate value of the pointer 202 to be displayed on the display 170 (x,y) can be calculated.

The transmission signal of the remote control device 700 input to the image display device 100 through the user input interface unit 150 is transmitted to the controller 180 of the image display device 100. The controller 180 may determine information on an operation of the remote control device 700 and key manipulation from a signal transmitted from the remote control device 700 and control the image display device 100 in response thereto.

As another example, the remote control device 700 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.

5A to 5D are diagrams illustrating various examples of outputting audio according to a connection state of an external speaker in a video display device according to an embodiment of the present invention.

When not connected to the external speaker 500, the video display device 100 outputs an audio signal through the internal speakers 185a and 185b, and when connected to the external speaker 500, the internal speakers 185a and 185b And at least one of the external speaker 500 may output an audio signal.

Meanwhile, the control unit 170m may set differently output audio signals in consideration of the directions in which the internal speakers 185a and 185b are directed. Specifically, the control unit 170m is an audio output from at least one of the internal speakers 185a and 185b or the external speaker 500 according to the direction in which the internal speakers 185a and 185b face and whether the external speaker 500 is connected. The signal can be set differently.

Meanwhile, the external speaker 500 may be a sound bar.

The sound bar functions as an audio signal processing and audio output of the video display device 100, and may be used alone, or may be connected to one or more other speakers to be used as a speaker system.

The sound bar has a configuration of a loud speaker and may be a loud speaker array in which a plurality of loud speakers are linearly connected. The sound bar can reproduce a sound field by outputting audio signals using a plurality of speakers.

The sound bar can be used alone or in the environment of a speaker system that includes a sound bar. Panning, Wave Field Synthesis, Beam Forming, Focused Source, and Head Related Transfer Function), etc., can be used to virtually reproduce multi-channel audio signals.

Referring to FIG. 5A, the internal speakers 185a and 185b of the video display device 100 may be in a downward-facing state (downward state).

In this case, the internal speakers 185a and 185b of the video display device 100 may be disposed downward on both sides of the lower end of the housing 195, and the video display device 100 may be installed in a state in which the upper and lower ends are not rotated. . Alternatively, the internal speakers 185a and 185b of the video display device 100 are disposed upwardly on both sides of the upper end of the housing 195, and the video display device 100 is installed with the upper and lower ends rotated 180 degrees, so that the internal speaker 185a , 185b) may be in a downward state.

When the video display device 100 and the external speaker 500 are not connected, the controller 170m confirms that the directions of the internal speakers 185a and 185b are in a downward direction and the external speaker 500 is not connected. , Control to output an audio signal through the internal speakers 185a and 185b in a downward state.

The controller 170m may perform an audio signal processing on the input content and control the signal-processed audio signal to be output through the internal speakers 185a and 185b.

Referring to FIG. 5B, internal speakers 185a and 185b of the video display device 100 may be in a downward state.

In the video display device 100, an external speaker 500 may be connected by wire or wirelessly. For example, the external speaker 500 may be connected to the communication unit 130m by any one of HDMI cable connection (wired connection), Bluetooth pairing, or WiFi communication connection (wireless connection) to transmit and receive information.

When the video display device 100 and the external speaker 500 are connected, the controller 170m checks that the internal speakers 185a and 185b are in a downward state and the external speaker 500 is connected, and only the external speaker 500 is connected. It can be controlled to output an audio signal through.

Meanwhile, the controller 170m may control to output an audio signal through not only the external speaker 500 but also the internal speakers 185a and 185b. In this case, the external speaker 500 and the internal speakers 185a and 185b may be controlled to output the same audio signal, and the separate audio signals may be output. For example, the controller 170m may control the internal speakers 185a and 185b to output a voice signal of a person in the image, and the external speaker 500 to output a background sound or a sound effect signal in the image.

Referring to FIG. 5C, internal speakers 185a and 185b of the video display device 100 may be in an upward direction.

In this case, the internal speakers 185a and 185b of the video display device 100 may be disposed upward on both sides of the upper end of the housing 195, and the video display device 100 may be installed in a state in which the upper and lower ends are not rotated. . Alternatively, the internal speakers 185a and 185b of the video display device 100 are disposed downward on both sides of the lower end of the housing 195, and the video display device 100 is installed with the top and bottom rotated 180 degrees, so that the internal speaker 185a , 185b) may be in an upward state.

When the video display device 100 and the external speaker 500 are not connected, the controller 170m confirms that the directions of the internal speakers 185a and 185b are upward and that the external speaker 500 is not connected. , It is possible to control to output an audio signal through the internal speakers 185a and 185b in an upward state.

Referring to FIG. 5D, internal speakers 185a and 185b of the video display device 100 may be in an upward position.

When the video display device 100 and the external speaker 500 are connected, the controller 170m checks that the internal speakers 185a and 185b are in an upward state and the external speaker 500 is connected, and the internal speakers 185a and 185b ) And an external speaker 500 to output an audio signal.

In this case, the controller 170m may control the external speaker 500 and the internal speakers 185a and 185b to output separate audio signals. Specifically, the controller 170m may output a first audio signal to the internal speakers 185a and 185b, and may output a second audio signal to the external speaker 500 through the communication unit 130m.

Meanwhile, when the video display device 100 and the external speaker 500 are connected, the controller 170m checks that the internal speakers 185a and 185b are in an upward state and the external speaker 500 is connected, and the external speaker 500 ) Can be controlled to output an audio signal.

The controller 170m may receive second model information including product information of the external speaker 500 from the external speaker 500 through the communication unit 130m. The second model information may include information for determining whether the external speaker 500 includes at least one overhead speaker disposed upward.

The controller 170m may determine whether an overhead speaker is included in the external speaker 500 from the second model information. When the external speaker 500 includes an overhead speaker, the controller 170m may not output an audio signal to the internal speakers 185a and 185b in an upward state.

Accordingly, it is possible to prevent an audio signal from being simultaneously output from the internal speakers 185a and 185b and the external speaker 500 upward from the video display device 100.

6A to 6B are diagrams illustrating various examples of audio that is separately output from the video display device of the present invention and an external speaker.

Referring to FIG. 6A, the audio signal may be a 5.1.2 channel signal.

The controller 170m separates the 5.1.2 channel signal, outputs the height 2 channel signal among the 5.1.2 channel signals as the first audio signal to the internal speakers 185a and 185b, and outputs the 5.1 channel signal among the 5.1.2 channel signals. May be output as a second audio signal to the external speaker 500 through the communication unit 130m.

In this case, since a height 2 channel signal is output through the internal speakers 185a and 185b in an upward state, the internal speakers 185a and 185b can operate in the same manner as a general overhead speaker in a 5.1.2 channel environment.

Accordingly, the video display device 100 may provide a sound in which a surround 3D effect is enhanced in connection with the external speaker 500.

Meanwhile, referring to FIG. 6B, the audio signal may include a voice signal and a background sound or sound effect signal.

The controller 170m separates the audio signal, outputs a voice signal as a first audio signal to the internal speakers 185a and 185b, and outputs a background sound or sound effect signal as a second audio signal through the communication unit 130m. ) Can be printed.

To this end, the controller 170m may perform audio signal processing on the input content, and divide the audio signal into a voice signal and a background sound or a sound effect signal. Specifically, the controller 170m separates and extracts a first signal representing a speech signal related to a language or dialogue from the input content and a second signal representing a speech signal related to a background sound or sound effect, and extracts the first signal and the second signal. You can adjust the amplitude of the signal.

The controller 170m may control to transmit the first signal whose amplitude is adjusted to the internal speakers 185a and 185b and transmit the second signal to the external speaker 500.

Accordingly, the video display device 100 may provide a clearly separated voice and a background sound with enhanced output in connection with the external speaker 500.

Meanwhile, the controller 170m may control the external speaker 500 and the internal speakers 185a and 185b to output the same audio signal.

7 is a diagram illustrating an example of outputting an audio signal from a video display device and an external speaker of the present invention.

Referring to the drawings, the internal speakers 185a and 185b of the video display device 100 output a first audio signal in an upward state, and a second audio signal from an external speaker 500 connected to the video display device 100. Can be printed.

A part of the first audio signal output upward from the internal speakers 185a and 185b may be reflected on the ceiling 800 and may reach the direction in which the user 900 is. In this case, the user may listen to both the first audio signal arriving from the ceiling 800 direction and the second audio signal arriving from the front direction of the user 900.

Accordingly, the user 900 can listen to a sound with improved sound field feel.

8A to 8B are diagrams illustrating an example of receiving a user input according to rotation of the video display device of the present invention.

The video display device 100 may further include a user input interface unit 150.

The user input interface unit 150 may include a plurality of sensors 150a and 150b respectively positioned at the upper and lower portions of the display 180 to receive a user input signal from the remote control device 700.

For example, the plurality of sensors 150a and 150b may include an IR sensor. The IR sensor may receive a command signal regarding power on/off, channel change, volume change, etc. from the remote control device 700.

Meanwhile, the plurality of sensors 150a and 150b may include an RF sensor. The RF sensor may receive a signal containing information about the movement of the remote control device 700 and the like. The plurality of sensors 150a and 150b may include both an IR sensor and an RF sensor.

Referring to FIG. 8A, the internal speakers 185a and 185b of the video display device 100 are disposed downward on both sides of the lower end of the housing 195, and the video display device 100 is installed in a state in which the upper and lower ends are not rotated. I can.

When a signal is output from the remote control device 700, a corresponding signal may be received by any one of the plurality of sensors 150a and 150b. A sensor that receives a corresponding signal may vary according to the direction in which the remote control device 700 is directed.

Since a conventional TV generally uses a sensor disposed at the lower portion of the display, the sensor has an optimized reception sensitivity at the lower portion of the display. Accordingly, compared with a conventional TV, the video display device 100 according to an embodiment of the present invention can increase the reception sensitivity of a user input signal output from the remote control device 700.

Referring to FIG. 8B, the internal speakers 185a and 185b of the video display device 100 are disposed downward on both sides of the lower end of the housing 195, and the video display device 100 is installed with the upper and lower ends rotated 180 degrees. Can be.

Even if the upper and lower ends of the image display device 100 are rotated 180 degrees, sensors are positioned at the top and bottom of the display 180, respectively, as in the case where the image display device 100 is not rotated.

Accordingly, the image display device 100 according to an exemplary embodiment of the present invention can increase the reception sensitivity of a user input signal output from the remote control device 700 regardless of a state in which the upper and lower ends are rotated and installed.

9A to 9B are diagrams showing various examples of determining the direction of an internal speaker of the present invention.

The controller 170m may determine a direction in which the internal speakers 185a and 185b are directed in order to output an audio signal to at least one of the internal speakers 185a and 185b and the external speaker 500.

As described with reference to FIGS. 5A to 5D, the control unit 170m may be configured to provide the internal speakers 185a and 185b or the external speaker 500 according to the direction in which the internal speakers 185a and 185b face and whether the external speaker 500 is connected. At least one of the audio signals outputted through at least one of them may be set differently.

Referring to FIG. 9A, the control unit 170m may determine a direction in which the internal speakers 185a and 185b are directed from rotation setting information input through the user input interface unit 150.

A specific key may be matched to the remote control device 700 in relation to the rotation setting signal. When rotation setting information is output from the remote control device 700 according to an input of pressing a corresponding specific key, the user input interface unit 150 may receive rotation setting information.

Meanwhile, the image display device 100 may receive a menu input signal from the remote control device 700 and display menu information related to the setting of the image display device 100 on the display 180. The menu information may include a rotation setting of the video display device 100. The user input interface unit 150 may receive rotation setting information from the remote control device 700.

The video display device 100 may further include a storage unit (not shown). The controller 170m may compare the received rotation setting information with the first model information of the image display device 100 stored in the storage unit to determine the direction in which the internal speakers 185a and 185b are directed.

The first model information may include location information of the internal speakers 185a and 185b of the image display device 100. Accordingly, the controller 170m may determine whether the current direction of the internal speakers 185a and 185b of the video display device 100 is in an upward state or a downward state based on the first model information and the rotation setting information.

For example, if the video display device 100 is a model in which the internal speakers 185a and 185b are arranged upward and the rotation setting information is rotated by 180 degrees, the control unit 170m indicates that the internal speakers 185a and 185b are currently It can be determined that it is in a downward state. When the video display device 100 is a model in which the internal speakers 185a and 185b are arranged upward and the rotation setting information is 0 degree rotation, the controller 170m determines that the internal speakers 185a and 185b are currently in an upward state. can do.

Meanwhile, referring to FIG. 9B, the image display device 100 may further include a sensor unit 155 including at least one of a gravity sensor, a gyro sensor, and an acceleration sensor. In this case, the control unit 170m may determine the direction in which the internal speakers 185a and 185b are directed based on the signal measured by the sensor unit 155.

The gravity sensor is a sensor capable of recognizing the rotational state of the device by sensing gravity applied to the device. When the image display device 100 rotates, the gravity sensor transmits an electrical signal accordingly to the controller 170m, and the controller 170m may determine a rotation angle of the image display device 100, and the like.

The acceleration sensor can process the output signal to measure the dynamic force such as acceleration, vibration, and impact of an object. The gyro sensor is a sensor that informs the value of the angle at which an object rotates in a unit time and senses the angular velocity. The controller 170m may derive the rotation angle of the image display device 100 by using at least one of a measurement value of an acceleration sensor and a measurement value of a gyro sensor.

The controller 170m may compare the received rotation setting information with the first model information of the image display device 100 stored in the storage unit to determine the direction in which the internal speakers 185a and 185b are directed.

10 is a diagram illustrating an example of rotating an image displayed according to the direction of the image display device of the present invention.

The controller 170m may control the display 180 so that the image displayed on the display 180 is rotated according to the rotation state information of the display 180 or the image display device 100.

Referring to the drawings, the controller 170m determines the rotation state of the image display device 100, and when the image display device 100 is rotated by 180 degrees, the image displayed on the display 180 is displayed so that the image is rotated. (180) can be controlled.

Meanwhile, the controller 170m determines the rotational state of the image display device 100 and controls the display 180 to display the original image on the display 180 when the image display device 100 is not rotated. can do.

Accordingly, it is possible to increase the user's convenience.

11 is a view showing the structure of a rotation bracket according to an embodiment of the present invention.

Referring to the drawings, the image display device 100 may further include a rotation bracket 196 mounted on the rear surface of the housing 195 to rotate the housing 195.

The housing 195 may include a front portion 195a surrounding an edge of the front portion of the display 180 and a rear portion 195b that is combined with the front portion 195a to form a rear surface of the display 180.

The housing 195 is for protecting a plurality of components mounted therein while accommodating the display 810, and may be divided into a single body or a plurality of bodies.

The video display device 100 may be fixed to a wall surface through a rotation bracket 196 mounted on the rear portion 195b, and may rotate while being fixed.

The rotation bracket 196 includes a fixing part 196a for fixing the image display device 100 to a wall surface, and a rotation part 196b and 196c that is combined with the fixing part 196a and rotates the video display device 100. I can.

The fixing part 196a may be installed by being fixed to the wall with a bolt or the like, and the load of the image display device 100 may be supported by the fixing part 196a installed on the wall.

The rotation units 196b and 196c may include a rotation driving unit 196c including a motor (not shown) therein, and a rotation driving shaft 196c that is directly connected to the image display device 100 and rotates.

The motor of the rotation driver 196c may transmit a rotational force to the image display device 100. The motor may be directly connected to the rotation drive shaft 196c to supply rotational force.

Meanwhile, the rotation driving unit 196c may further include a rotation shaft (not shown) connected to a motor to rotate and to which a driving gear is mounted on one side. A driven gear is mounted on one side of the rotation drive shaft 196c so that the driving gear and the driven gear are engaged, so that the rotational force of the motor may be supplied to the rotation drive shaft 196c.

Accordingly, the image display device 100 can be rotated by ±180 degrees by the operation of the rotation bracket 196.

12 to 13 are views showing various examples of rotating the image display device of the present invention.

When the external speaker 500 is connected, the controller 170m may control the rotation bracket 196 to rotate the housing 195 so that the directions of the internal speakers 195a and 195b are upward. Meanwhile, when the connection with the external speaker 500 is disconnected, the controller 170m may control the rotation bracket 196 to rotate the housing 195 so that the directions of the internal speakers 195a and 195b are downward.

Referring to FIG. 12, when the video display device 100 is connected to the external speaker 100, the controller 170m may determine the current directions of the internal speakers 195a and 195b.

In a state in which the internal speakers 195a and 195b are downward (see Fig. 11 (a)), when the video display device 100 is connected to the external speaker 100 (see Fig. 11 (b)), the control unit ( 170m) may control the rotation bracket 196 so that the internal speakers 195a and 195b are in an upward state in order to output audio signals from both the internal speakers 195a and 195b and the external speaker 100.

After the video display device 100 is rotated 180 degrees by the rotation bracket 196, the controller 170m outputs the first audio signal to the internal speakers 195a and 195b, and outputs the second audio signal to the external speaker 500 ) To output audio signals from both the internal speakers 195a and 195b and the external speaker 100.

Accordingly, sound of improved quality can be provided, and user convenience can be improved.

Referring to FIG. 13, when the video display device 100 is connected to the external speaker 100 and then disconnected, the control unit 170m rotates the bracket 196 so that the internal speakers 195a and 195b are in a downward state. ) Can be controlled.

After the video display device 100 is rotated 180 degrees by the rotation bracket 196, the controller 170m outputs an audio signal to the internal speakers 195a and 195b, so that the connection with the external speaker 500 is disconnected. , Only the internal speakers 195a and 195b may output an audio signal downward.

Accordingly, it is possible to increase the user's convenience.

Meanwhile, an operation in which the video display device 100 automatically rotates according to whether the external speaker 500 is connected may be changed according to a setting. The set value may be stored in the storage unit, and the controller 170m may control the rotation of the image display device 100 according to the set value.

The video display device 100 may be set to not automatically rotate regardless of whether or not the external speaker 500 is connected, and when the external speaker 500 is connected, the internal speakers 195a and 195b are automatically rotated to be in a downward state. Can be set to

In various embodiments of the present invention, it has been described that the communication unit 130m is provided separately from the external device interface unit 130 of the image display device 100 according to the embodiment shown in FIG. 2. Not limited. The communication unit 130m may be included in the external device interface 130.

In addition, in various embodiments of the present invention, it has been described that the control unit 170m is provided separately from the signal processing unit 170 of the image display device 100 according to the embodiment shown in FIG. 2. Not limited. The control unit 170m may be included in the signal processing unit 170.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and is not departing from the gist of the present invention claimed in the claims. Of course, various modifications may be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

Claims (10)

housing;
display;
An internal speaker outputting sound;
A communication unit for transmitting and receiving information to and from an external speaker; And
It includes a control unit for outputting an audio signal by performing audio signal processing on the input content,
The control unit
The video display device, wherein the audio signal output to at least one of the internal speaker and the external speaker is set differently according to a direction in which the internal speaker is directed and whether the external speaker is connected. The method of claim 1,
When the direction in which the internal speaker faces is upward and the external speaker is connected, a first audio signal is output to the internal speaker, and a second audio signal is output to the external speaker through the communication unit. Video display device. The method of claim 2,
The signal-processed audio signal is a 5.1.2 channel signal,
The first audio signal is a height 2 channel signal among 5.1.2 channel signals, and the second audio signal is a 5.1 channel signal among 5.1.2 channel signals. The method of claim 2,
The signal-processed audio signal includes a voice signal and a background sound or sound effect signal,
The first audio signal is a voice signal, and the second audio signal is a background sound or a sound effect signal. The method of claim 1,
Further comprising a; user input interface unit,
The user input interface unit
And a plurality of sensors positioned at an upper end and a lower end of the display, respectively, to receive a user input signal from a remote control device. The method of claim 5,
The control unit
And determining a direction in which the internal speaker is directed from rotation setting information input through the user input interface unit. The method of claim 1,
A sensor unit including at least one or more of a gravity sensor, a gyro sensor, or an acceleration sensor; further comprising,
The control unit
And determining a direction in which the internal speaker is directed based on the signal measured by the sensor unit. The method of claim 1,
The control unit
An image display device, characterized in that controlling the image displayed on the display to rotate according to the rotation state of the display. The method of claim 1,
The external speaker
The video display device, characterized in that connected to the communication unit through any one of HDMI cable connection, Bluetooth pairing, or WiFi communication connection. The method of claim 1,
Further comprising a rotation bracket mounted on the rear surface of the housing to rotate the housing,
The control unit
When the external speaker is connected, the housing is rotated so that the direction of the internal speaker is upward by controlling the rotation bracket,
And when the connection with the external speaker is disconnected, the housing is rotated so that the direction of the internal speaker is downward by controlling the rotation bracket.

Images