KR20210017334A - Display apparatus and control method thereof - Google Patents

Abstract

The present invention relates to a display device providing a key code corresponding to a key input from a remote control, which transmits the key code of a signal to control an external device to the remote control, displays an image based on the signal received through a signal reception unit, identifies whether or not the displayed image corresponds to the input key, and performs an operation related to a signal transmission error from the remote control to the external device when the displayed image does not correspond to the input key.

Description

Display device and its control method {DISPLAY APPARATUS AND CONTROL METHOD THEREOF}

The present invention relates to a display device and a control method thereof, and in particular, a display device that displays an image based on a signal provided from an external device by transmitting a key code of a signal to control an external device to a remote control, and a control method thereof. It is about.

Recently, display devices are used in connection with external devices rather than being used alone. When a display device is used in connection with an external device, it can provide a large number of types of images or functions beyond video display.Therefore, more and more various types and a large number of external devices are connected to the display device and used. have.

As the type and number of external devices connected to the display device increases, the number of remote controls to control the display device and the external device increases. However, if you use the integrated remote control (Multi Brand Remote Controller), the display device and the You can control all external devices. For example, when a TV is connected to a set-top box, both the TV and the set-top box can be controlled with an integrated remote control. In more detail, assuming that the integrated remote control is a TV-only remote control, when a channel number is input through the remote control, the TV can identify a key code corresponding to the channel number selected by the remote control. The key code may be a control code for controlling the set-top box so that the set-top box provides the video signal of the corresponding channel number to the TV. The TV transmits the identified key code to the remote control, causing the remote control to forward the key code to the set-top box. The set-top box transmits the video signal of the corresponding channel number to the TV according to the key code received from the remote control, and the TV can display the video of the corresponding channel number based on the video signal received from the set-top box.

However, even in the case of using such an integrated remote control, as a result of the key code not being normally transmitted to the set-top box due to a transmission error occurring during the transmission of the key code, there is a problem that the image of the changed channel number is not displayed on the TV. have. In this case, the user has no choice but to repeatedly input the channel number until the video of the channel number is displayed without knowing the English of the channel number inputted by the user through the remote control. It is pointed out as a cause of deteriorating accessibility.

Therefore, in controlling an external device connected to the display device through the integrated remote control, even if a transmission error occurs in the process of transmitting the key code for controlling the external device, the transmission error is actively identified and the key code is normally transferred to the external device. There is a demand for a way to improve the convenience and accessibility of the display device by coping with it so that it can be transmitted.

An object of the present invention is to actively identify a transmission error occurring in the process of transmitting a key code for controlling the external device in controlling an external device connected to a display device through a remote control, and transmit the key code normally to the external device. It is to provide a display device and a control method thereof that can improve convenience and accessibility to the display device by coping with it so that it can be achieved.

An object of the present invention as described above is a display; A communication unit capable of communicating with a remote control; A signal receiver capable of receiving a signal from an external device; Controls the communication unit to transmit a key code of a signal corresponding to a key input from the remote control and to control the external device to the remote control, and controls the display to display an image based on a signal received through the signal receiving unit And, based on the identification of whether the displayed image corresponds to the input key, and the displayed image does not correspond to the input key, signal transmission error from the remote control to the external device It can be achieved by a display device including a processor that performs an operation related to.

In addition, the display device may further include a second signal receiving unit, and the processor, when a signal to control the external device is not received through the second signal receiving unit, the displayed image is transmitted to the input key. It can be identified as not responding.

In addition, the processor, The channel number of the image may be identified, and whether the displayed image corresponds to the input key may be identified according to whether the identified channel number corresponds to a key input from the remote control.

In addition, the processor may identify the number of digits of the channel number and identify whether the displayed image corresponds to the input key according to whether the identified digits correspond to the number of digits of the key input from the remote control. I can.

In addition, the processor may perform an operation related to the signal transmission error by controlling the communication unit so that the remote control retransmits a signal to control the external device.

In addition, the processor may control the display to notify of the signal transmission error.

In addition, the display device may further include a signal transmission unit capable of transmitting a signal to the external device, and the processor may control the signal transmission unit to transmit a signal to control the external device to the external device. .

In addition, the processor may control the display to display a GUI for selecting a plurality of keys, and may identify a key selected from among the plurality of keys as the input key.

Further, the processor may identify the input key based on a signal received from the remote control through the second signal receiving unit.

It is an object of the present invention to transmit a key code of a signal corresponding to a key input from a remote control and controlling an external device to the remote control; Displaying an image based on a signal received from the external device; Identifying whether the displayed image corresponds to the input key; And performing an operation related to a signal transmission error from the remote control to the external device based on the identification of the displayed image as not corresponding to the input key. Can be.

In addition, the step of identifying whether the displayed image corresponds to the input key may include identifying that the displayed image does not correspond to the input key when a signal to control the external device is not received. It may include steps.

In addition, identifying whether the displayed image corresponds to the input key may include: identifying a channel number of the image; And identifying whether the displayed image corresponds to the input key according to whether the identified channel number corresponds to a key input from the remote control.

In addition, the step of identifying the channel number of the image includes the step of identifying the number of digits of the channel number, and the displayed image is displayed according to whether the identified channel number corresponds to a key input from the remote control. The step of identifying whether the input key corresponds to the input key includes the steps of identifying whether the displayed image corresponds to the input key according to whether the identified digit corresponds to the digit of the key input from the remote control. Can include.

In addition, performing an operation related to a signal transmission error from the remote control to the external device may include controlling the remote control to retransmit a signal to control the external device.

In addition, performing an operation relating to a signal transmission error from the remote control to the external device may include notifying the signal transmission error.

In addition, performing an operation relating to a signal transmission error from the remote control to the external device may include transmitting a signal to control the external device to the external device.

In addition, transmitting a key code of a signal to control the external device to the remote control may include: displaying a GUI for selecting a plurality of keys; And identifying a key selected from among the plurality of keys as the input key.

In addition, transmitting a key code of a signal to control the external device to the remote control may include identifying the input key based on a signal received from the remote control.

An object of the present invention is a computer-readable code, in a recording medium in which a computer program including a code for performing a method of controlling a display device is stored, the method of controlling the display device comprises: a key input from a remote control Transmitting a key code of a signal corresponding to and controlling an external device to the remote control; Displaying an image based on a signal received from the external device; Identifying whether the displayed image corresponds to the input key; And performing an operation related to a signal transmission error from the remote control to the external device based on the identification of the displayed image as not corresponding to the input key. It can also be achieved by means of a recording medium on which a program is recorded.

According to the present invention, in controlling an external device connected to a display device through a remote control, a transmission error occurring in the process of transmitting a key code for controlling the external device is actively identified, and the key code is normally transmitted to the external device. By coping so that it is possible to improve the convenience and accessibility of the display device.

1 shows a display device according to an embodiment of the present invention.
2 illustrates an example of a configuration of the display device of FIG. 1.
3 illustrates an example of a control method for the display device of FIG. 1.
4 shows an example of identifying whether an image corresponds to an input key in relation to operation S33 of FIG. 3.
5 shows an example of a method of controlling the processor of FIG. 4.
6 illustrates another example of identifying whether an image corresponds to an input key in relation to operation S33 of FIG. 3.
7 shows an example of a method of controlling the processor of FIG. 6.
8 shows an example of an operation performed with respect to a signal transmission error in relation to operation S34 of FIG. 3.
9 shows another example of an operation performed with respect to a signal transmission error in relation to operation S34 of FIG. 3.
10 shows another example of an operation performed with respect to a signal transmission error in relation to operation S34 of FIG. 3.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the embodiments below, the matters described in the accompanying drawings are referred to, and the same reference numerals or reference numerals shown in each drawing indicate components that perform substantially the same operation. In the present specification, at least one of the plurality of configurations refers to not only all of the plurality of configurations, but also one or both of each of the plurality of configurations excluding the rest.

1 shows a display device 1 according to an embodiment of the present invention. As shown in FIG. 1, the display apparatus 1 may display an image 11 on the display 12. The image 11 may include various types of images such as news, movies, music, dramas, photos, cartoons, animations, and computer games. 1 illustrates an example in which the display device 1 is implemented as a TV, but is not limited thereto, and thus, a wearable device such as a smartphone, a tablet, a personal computer, and a smart watch, a multimedia player, an electronic frame, and a digital signage are used. Can be implemented. However, in the following description, for convenience of explanation, it is assumed that the display device 1 is implemented as a TV.

The display device 1 is connected to the external device 3 and may receive a signal from the external device 3. For example, when the external device 3 is implemented as a set-top box, the display device 1 may receive an image signal from the set-top box and display the image 11 based on the received image signal. In addition to the set-top box, the external device 3 may be implemented as a portable storage device capable of providing an image signal to the display device 1, a smartphone, a tablet, a personal computer, an electronic frame, and a server. However, in the following description, for convenience of explanation, it is assumed that the external device 3 is implemented as a set-top box.

The display device 1 communicates with the remote control 2 and can perform various functions according to the control of the remote control 2. The remote control 2 may include a key input unit 21 for performing various functions of the display apparatus 1, and the key input unit 21 may be configured with a plurality of keys. The display device 1 corresponds to a user input for selecting at least one key among a plurality of keys of the key input unit 21, for example, power on/off, channel up/down, volume up/down, channel number selection, In addition to basic functions of a TV such as displaying/selecting a setting menu, various application functions such as content selection, telephone calls, video calls, and games can be performed.

The remote control 2 is an integrated remote control and can control functions of the display device 1 as well as the external device 3 connected to the display device 1. The remote control 2 may be dedicated to the display device 1 or dedicated to the external device 3, and in any case, for example, by registering as a device controllable by each dedicated remote control, the display device ( It can be set to control both 1) and the external device 3 connected to the display device 1. However, in the following, for convenience of explanation, it is assumed that the remote control 2 is dedicated to the display device 1, and the external device 3 is inputted by a key input corresponding to the channel number "11" from the remote control 2 An example in which an image signal of channel number "11" is provided to the display device 1 by controlling is described in more detail.

When a key corresponding to the channel number "11" is input from the remote control 2, the display device 1 is a key code corresponding to the channel number "11", and the external device 3 is a video signal of the channel number "11". It is possible to identify the key code to control to provide a remote control (2). Here, the key code is provided in response to a plurality of functions of the external device 3, and may include data consisting of a series of numbers or characters that enable the external device 3 to perform a corresponding function according to the key code. have. The remote control 2 is for exclusive use of the display device 1 and does not have a key code that allows the external device 3 to provide a video signal corresponding to the channel number "11", so the display device 1 It is identified and provided to the remote control (2).

The remote control 2 receives a key code corresponding to the channel number "11" from the display device 1 and transmits a control signal to control the external device 3 to the external device 3 according to the key code. The control signal may include, for example, a key code.

The external device 3 receives a control signal from the remote control 2, transmits an image signal of channel number "11" to the display device 1 according to the key code of the control signal, and the display device 1 is an external device. The image 11 of the channel number "11" can be displayed on the display 12 based on the image signal of (3).

However, errors occurring in the process of transmitting the control signal to the external device 3, for example, a transmission error in which the normal transmission of the control signal is hindered by an obstacle 5 on the transmission path of the control signal may occur. As a result of not transmitting the control signal to the external device 3 normally, the image 11 with the channel number "11" may not be displayed on the display device 1. In this case, the user inputs the key again from the remote control 2 despite the normal selection of the channel number "11" through the key input from the remote control 2 in order to watch the image 11 of the channel number "11". It should be done, and if the transmission error is not fundamentally resolved, it may be put in a situation in which the corresponding key must be repeatedly input.

Accordingly, the display device 1 according to the present embodiment can actively identify whether the control signal is normally transmitted to the external device 3, that is, whether a transmission error has occurred. For example, the display apparatus 1 may identify whether a transmission error of a control signal is detected according to whether the currently displayed image corresponds to a key input from the remote control 2. A process of identifying whether there is a transmission error will be described in detail with reference to FIGS. 4 to 7.

In addition, when it is identified that there is a transmission error for the control signal, the display apparatus 1 may perform an operation corresponding to the transmission error. For example, as shown in FIG. 1, the display device 1 causes the remote control 2 to cause the external device 3 on the basis of the identification of a transmission error in the transmission of the control signal 33 after the transmission of the key code 31. ) To retransmit the control signal (34). For example, the display device 1 may transmit a control code to the remote control 2 to cause the remote control 2 to retransmit (34) a control signal to the external device 3. The control code may include, for example, a key code.

In some cases, in response to the retransmission 34 of the control signal, when it is identified that the control signal has not been normally transmitted to the external device 3, the display device 1 is used until a transmission error for the control signal is not identified. , It is possible to allow the remote control 2 to repeatedly transmit a control signal to the external device 3.

As described above, according to the display device 1 according to the present embodiment, an operation corresponding to the transmission error of the control signal by actively identifying whether there is an error in transmission of the control signal from the remote control 2 to the external device 3 , For example, by causing the remote control 2 to repeatedly transmit the control signal to the external device 3, even when a transmission error for the control signal occurs, the user's repetitive key input is prevented and the display device 1 Convenience and accessibility can be improved.

2 shows an example of a configuration of the display device 1 of FIG. 1. As shown in FIG. 2, the display apparatus 1 according to the present embodiment may include a signal receiving unit 14, a signal processing unit 17, a display 12, a communication unit 13, and a processor 10. .

The signal receiver 14 may receive a signal from the external device 3. The signal received from the external device 3 may include a video signal, an audio signal, and a signal related to additional information (eg, EPG, etc.). The signal receiver 14 is connected to an external device 3 to receive a signal, an HDMI port (High-Definition Multimedia Interface port), a component jack, a PC port, and a USB port (USB port). ), and may include a combination of two or more of an HDMI port, a component jack, a PC port, and a USB port.

The signal processing unit 17 may process a signal received through the signal receiving unit 14. The signal processing unit 17 may include an image signal processing unit that performs various image processing such as decoding, scaling, noise filtering, frame rate conversion, and resolution conversion on the image signal, and decoding, amplifying, and noise filtering the audio signal. It may also include a voice signal processing unit that performs various voice processing such as. The signal processing unit 17 includes a hardware processor implemented as a chipset, circuit, buffer, etc. mounted on a printed circuit board, and may be implemented as a system on chip (SOC) depending on a design method.

The display 12 may visually provide information (eg, a user interface (UI), etc.) to the outside (eg, a user) of the display device 1. When the display 12 and the touch pad are layered to form a touch screen, the display 12 may be used as an input device in addition to an output device. The display 12 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a 3D display. Display) and an electrophoretic display (Electrophoretic Display) may be included. In addition, depending on the implementation form of the display device 1, the display device 1 may include two or more displays 12.

The communication unit 13 may communicate with the remote control 2 under the control of the processor 10. For example, when the processor 10 includes an application processor, the communication unit 13 operates independently of the application processor, and may include one or more communication processors supporting wireless communication. For example, the communication unit 13 includes a Bluetooth communication module, a Wi-Fi communication module, a Wi-Fi Direct communication module, an Infrared Data Association (IrDA) communication module, a cellular communication module, and a short-range wireless. It may include a wireless communication module such as a communication module, a Global Navigation Satellite System (GNSS) communication module, and the like. The communication modules described above may be integrated into a single component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips).

The processor 10 may control the overall configuration of the display device 1. As an example, the processor 10 executes software (eg, a program) stored in the memory 18 to execute at least one other component (eg, a hardware or software component) of the display device 1 connected to the processor 10. Can be controlled and various data processing or operations can be performed. For example, as at least part of a data processing or operation, the processor 10 loads an instruction or data received from another component into a memory (e.g., volatile memory) 18, and the instruction or data stored in the memory 18 And the result data can be stored in a memory (eg, non-volatile memory). For example, the processor 10 is a main processor (eg, a central processing unit or an application processor), and a secondary processor (eg, a graphics processing unit, an image signal processor, a sensor hub processor, or a communication processor) that can be operated independently or together therewith. It may include. Additionally or alternatively, the co-processor may be configured to use lower power than the main processor, or to be specialized for a designated function. The coprocessor may be implemented separately from the main processor or as part of it. The coprocessor is, for example, on behalf of the main processor while the main processor is in an inactive (eg, sleep) state, or together with the main processor while the main processor is in an active (eg, application execution) state, the display device ( It is possible to control at least some of the functions or states related to at least one of the components of 1).

As an example, the processor 10 may control the communication unit 13 to transmit a key code of a signal to control the external device 3 to the remote control 2, corresponding to a key input from the remote control 2, and The display 12 may be controlled to display an image based on a signal received through the receiver 14. In particular, the processor 10 identifies whether the image displayed on the display 12 corresponds to the key input from the remote control 2, and the image displayed on the display 12 corresponds to the key input from the remote control 2. Based on what is identified as not corresponding, an operation related to a signal transmission error from the remote control 2 to the external device 3 can be performed.

In addition, the processor 10 identifies whether the image displayed on the display 12 corresponds to the key input from the remote control 2, and the image displayed on the display 12 corresponds to the key input from the remote control 2 Based on what is identified as not doing, at least some of data analysis, processing, and generation of result information for performing an operation related to an error in signal transmission from the remote control 2 to the external device 3 is performed based on rules or artificial intelligence. Intelligence) algorithm, which may be performed using at least one of machine learning, neural network, or deep learning algorithm.

For example, the processor 10 may perform functions of a learning unit and a recognition unit together. The learning unit may perform a function of generating, for example, a learned neural network network, and the recognition unit may perform a function of recognizing (or inferring, predicting, estimating, or determining) data using the learned neural network network. The learning unit can create or update a neural network. The learning unit may acquire training data to generate a neural network network. For example, the learning unit may acquire training data from the memory 18 to be described later or externally. The training data may be data used for learning of a neural network. For example, data identifying whether an image displayed on the display 12 corresponds to a key input from the remote control 2 and the display 12 Based on the identification that the image displayed in) does not correspond to the key input from the remote control (2), the data obtained by performing the operation related to the signal transmission error from the remote control (2) to the external device (3) as learning data. It can be used to train a neural network.

The learning unit may perform pre-processing on the acquired training data before training the neural network network using the training data, or may select data to be used for training from among a plurality of training data. For example, the learning unit may process the training data into a preset format, filter it, or add/remove noise to process the training data into a form suitable for learning. The learning unit identifies whether the image displayed on the display 12 corresponds to a key input from the remote control 2 using the preprocessed learning data, and the image displayed on the display 12 is inputted from the remote control 2. Based on what is identified as not corresponding to the key, a neural network network configured to perform an operation related to a signal transmission error from the remote control 2 to the external device 3 may be generated.

The learned neural network network may be composed of a plurality of neural network networks (or layers). Nodes of a plurality of neural network networks have weights, and the plurality of neural network networks may be connected to each other so that an output value of one neural network network is used as an input value of another neural network network. Examples of neural network networks include CNN (Convolutional Neural Network), DNN (Deep Neural Network), RNN (Recurrent Neural Network), RBM (Restricted Boltzmann Machine), DBN (Deep Belief Network), BRDNN (Bidirectional Recurrent Deep Neural Network), and It may include models such as Deep Q-Networks.

Meanwhile, the recognition unit identifies whether the image displayed on the display 12 corresponds to the key input from the remote control 2, and indicates that the image displayed on the display 12 does not correspond to the key input from the remote control 2. Based on what is identified, target data may be obtained in order to perform an operation regarding an error in signal transmission from the remote control 2 to the external device 3. The target data may be obtained from the memory 18 or externally. The target data may be data to be recognized by the neural network. The recognition unit may perform pre-processing on the acquired target data or select data to be used for recognition from among a plurality of target data before applying the target data to the learned neural network network. For example, the recognition unit may process target data into a preset format, filter, or add/remove noise to process the target data into a form suitable for recognition. The recognition unit may obtain an output value output from the neural network network by applying the preprocessed target data to the neural network network. According to various embodiments, the recognition unit may acquire an education rate value (or a reliability value) together with an output value.

The display device 1 may exclude at least one component from the above configuration or add another configuration to the above configuration. For example, the display device 1 may further include a second signal receiving unit 15, a signal transmitting unit 16, a memory 18, a user input unit 19, a power supply unit, and the like.

The second signal receiving unit 15 may receive a control signal from the remote control 2. The control signal may include an infrared control signal for controlling the display device 1 or the external device 3, and the second signal receiving unit 15 includes, for example, an IrDA communication module to receive an infrared control signal. can do. The second signal receiving unit 15 may be provided as a chip or module independent from the communication unit 13 or the signal receiving unit 14 according to a design method, or may be provided as an integrated chip or module.

The signal transmission unit 16 may transmit a signal to control the external device 3 to the external device 3. When receiving a signal of a key input from the remote control 2, the signal transmission unit 16 may transmit a control signal capable of controlling the external device 3 according to the input key. The control signal may include, for example, a key code. The signal transmission unit 16 may include, for example, an IrDA communication module to transmit a control signal. The signal transmission unit 16 may be provided as an independent chip or module from the communication unit 13, the signal reception unit 14, or the second signal reception unit 15, or may be provided as an integrated chip or module.

The memory 18 may store data for processing each component of the display device 1 and a program for controlling each component. The memory 18 includes at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory, and a ROM. can do. However, since it is not limited thereto, the memory 18 may be implemented as a web storage that stores data and programs on the Internet.

The memory 18 may store a lookup table related to a key code corresponding to a key input from the remote control 2. For example, when the processor 10 receives a key input by the user to view the image 11 of the channel number "11" from the remote control 2, the processor 10 refers to the lookup table stored in the memory 18, The corresponding key code can be identified and transmitted to the remote control 2.

The user input unit 19 may receive a user input. The user input unit 19 may include an input receiving circuit, and the input receiving circuit may be implemented in various examples according to a user input method. As an example, the input receiving circuit may include a menu button provided on one surface of the display device 1, and as another example, may include a touch panel coupled to the display 12.

The power supply unit may receive external power or internal power according to the control of the processor 10 to supply power necessary for each component of the display apparatus 1.

Hereinafter, an example of the configuration of the remote control 2 communicating with the display device 1 will be described in detail. The remote control 2 may include a key input unit 21, a second communication unit 22, a second signal transmission unit 23, and a second processor 20.

The key input unit 21 may include a plurality of keys capable of receiving user input. The plurality of keys may include keys for controlling a plurality of functions of the display apparatus 1, and may correspond to, for example, menu display/selection, channel up/down, volume up/down, and the like. Since it is not limited thereto, keys corresponding to various functions may be included.

The second communication unit 22 may communicate with the display device 1. When a user input is received to control a specific function of the external device 3 through the key input unit 21, the second communication unit 22 displays the signal of the key input according to the user input to the display device 1 It transmits to the device 1 and may receive a key code corresponding to the key from the display device 1. The second communication unit 22 may include, for example, a wireless communication module such as a Bluetooth communication module, a WiFi communication module, a WiFi direct communication module, an IrDA communication module, a cellular communication module, a short-range wireless communication module, a GNSS communication module, and the like. The communication modules described above may be integrated into a single chip or may be implemented as a plurality of separate chips.

The second signal transmission unit 23 may output a control signal. For example, when receiving a key code corresponding to a key input through the key input unit 21 from the display device 1, the second signal transmission unit 23 transmits a control signal corresponding to the key code to the external device 3 Can be transferred to. The second signal transmission unit 23 may include, for example, an IrDA communication module to transmit a control signal. The second signal transmission unit 23 may be provided as a chip or module independent from the second communication unit 22, or may be provided as an integrated chip or module.

The second processor 20 may control the overall configuration of the remote control 2. As an example, the second processor 20 executes software (eg, a program) stored in the memory 18 to execute at least one other component (eg, hardware or software) of the remote control 2 connected to the second processor 20. Components) and perform various data processing or operations.

Particularly, when a key is input to control the external device 3 through the key input unit 21, the second processor 20 transmits a signal of the input key to the display device 1, and It is possible to control the second communication unit 22 to receive a key code corresponding to the key from ). In addition, the second processor 20 may control the second signal transmission unit 23 to transmit the key code received from the display device 1 to the external device 3.

The remote control 2 may exclude at least one component from the above configuration or add another configuration to the above configuration. For example, the remote control 2 may further include a second memory. The second memory may store data for processing each component of the remote control 2 and a program for controlling each component. The second memory may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory, and a ROM.

3 illustrates an example of a control method for the display device 1 of FIG. 1. The control method according to the present embodiment can be performed by the processor 10 of the display apparatus 1 executing the control program described above. Hereinafter, for convenience of description, an operation performed by the processor 10 by executing a control program may be briefly described as an operation of the processor 10.

3, the processor 10 corresponds to a key input from the remote control 2 and transmits a key code of a signal to control the external device 3 to the remote control 2 (S31), and the external device 3 An image may be displayed based on a signal received from) (S32).

In addition, the processor 10 identifies whether the displayed image corresponds to the input key (S33), and based on the identification that the displayed image does not correspond to the input key, the remote control 2 to the external device 3 An operation related to a signal transmission error may be performed (S34).

As described above, according to the control method according to the present embodiment, by actively identifying whether there is an error in transmission of the control signal from the remote control 2 to the external device 3, and performing an operation corresponding to the transmission error of the control signal , It is possible to improve convenience and accessibility for the display device 1.

4 shows an example of identifying whether an image corresponds to an input key in relation to operation S33 of FIG. 3. As shown in FIG. 4, the processor 10 may identify a key input from the remote control 2. For example, the remote control 2 may include a channel number display key 24 and a direction selection key 25, and the processor 10 provides a channel number in response to an input of the channel number display key 24 from the remote control 2 The number display UI 41 may be displayed on the display 120. The channel number display UI 41 may include, for example, a plurality of number keys to select a channel number. The processor 10 includes a channel number. Among the plurality of number keys of the display UI 41, a key selected according to an input of the direction selection key 25 of the remote control 2 may be identified, and a key code corresponding to a channel number by the identified key may be identified. For example, when the channel number "1" 42 is selected twice among the plurality of number keys of the channel number display UI 41 through the direction selection key 25 of the remote control 2, the processor 10 It is possible to identify "11" as being selected, and to identify a key code corresponding to the channel number "11." The identification of the key code may be based on a lookup table indicating a key code for each channel number. The lookup table is an external device. When connected to (3), it may be received from the external device 3 or an external server and stored in the memory 18. However, the present invention is not limited thereto, and the lookup table may be obtained in various ways.

Then, the processor 10 transmits 31 the identified key code to the remote control 2, causing the remote control 2 to transmit 33 a control signal to control the external device 3 according to the key code. .

In particular, the processor 10 according to the present embodiment may identify whether or not a control signal transmitted from the remote control 2 to the external device 3 is received. That is, by identifying whether the control signal is received through the second signal receiving unit 15, it is possible to identify whether the control signal has been normally transmitted to the external device 3. Whether to receive the control signal may be identified based on the key code of the control signal. For example, the processor 10 may identify the control target of the control signal by checking header information of the control signal received through the second signal receiving unit 15, for example, a device identifier, a product model name, and the like. If the control target of the control signal is the external device 3, the processor 10 can identify a key code for controlling the external device 3 by performing decoding on the control signal, etc., and the identified key If the code matches the key code transmitted to the remote control 2, it can be identified that the control signal has been received.

If it is identified that the control signal has been received through the second signal receiving unit 15, for example, the key code of the control signal received through the second signal receiving unit 15 and the key code transmitted to the remote control 2 are If they match, the processor 10 can identify that the control signal from the remote control 3 has been normally transmitted to the external device 3. That is, since the processor 10 does not have a transmission error for the control signal, as a result of normally transmitting the control signal from the remote control 3 to the external device 3, it is displayed based on the image signal provided by the external device 3 It can be identified that the image 11 is corresponding to the key input from the remote control (2).

On the other hand, when it is identified that the control signal has not been received through the second signal receiving unit 15, for example, the control signal received through the second signal receiving unit 15 is not a control signal to be identified, or a control signal When the key code of does not match the key code transmitted to the remote control 2, the processor 10 may identify that the control signal from the remote control 3 is not normally transmitted to the external device 3. That is, the processor 10 is based on the image signal provided by the external device 3 as a result of the control signal from the remote control 3 not being normally transmitted to the external device 3 due to a transmission error of the control signal. It can be identified that the displayed image does not correspond to the key input from the remote control 2. In this case, as described in FIG. 1, the processor 10 may cause the remote control 2 to retransmit 34 a control signal to control the external device 3 according to a key code. For example, the processor 10 may transmit a control code that causes the remote control 2 to retransmit the control signal 34 to the remote control 2. The control code may include, for example, a key code.

As described above, according to the processor 10 according to the present embodiment, by actively identifying whether there is an error in transmission of the control signal from the remote control 2 to the external device 3, convenience and accessibility for the display device 1 Can improve.

5 shows an example of a method of controlling the processor of FIG. 4. 5, the processor 10 corresponds to the key input from the remote control 2 and transmits a key code of a signal to control the external device 3 to the remote control 2 (S51), and the external device 3 An image may be displayed based on a signal received from) (S52).

In addition, the processor 10 identifies whether a signal to control the external device 3 is received (S53), and a signal from the remote control 2 to the external device 3 based on the identification that the control signal has not been received. An operation related to a transmission error may be performed (S54).

6 illustrates another example of identifying whether an image corresponds to an input key in relation to operation S33 of FIG. 3. Hereinafter, referring to FIG. 6, assuming that the channel number "11" is selected as in FIG. 4, another method for identifying whether an image displayed on the display 12 corresponds to a key input from the remote control 2 An example is described in detail.

The processor 10 according to the present exemplary embodiment may identify the channel number 61 of an image displayed on the display 12. However, even if the channel number 61 is not displayed on the display 12, the processor 10 may identify that the channel number 61 is “11” based on the EPG included in the video signal, for example. However, hereinafter, it is assumed that the channel number 61 is displayed on the display 12 for convenience of description. In this case, the processor 10 determines the channel number 61 based on the EPG included in the video signal or based on the optical character recognition (OCR) for the channel number 61 displayed on the display 12. Can be identified. However, the present invention is not limited thereto, and the processor 10 may identify the channel number 61 in various ways.

The processor 10 identifies whether the channel number 61 displayed on the display 12 corresponds to the channel number "11" by a key input from the remote control 2, so that the control signal is normally sent to the external device 3 You can identify whether it has been transmitted.

If the channel number 61 displayed on the display 12 corresponds to the channel number "11" by the key input from the remote control 2, the processor 10 sends a control signal from the remote control 3 to an external device. (3) It can be identified as transmitted normally. That is, since the processor 10 does not have a transmission error for the control signal, as a result of normally transmitting the control signal from the remote control 3 to the external device 3, it is displayed based on the image signal provided by the external device 3 It can be identified that the image 11 is corresponding to the key input from the remote control (2).

On the other hand, if the channel number 61 displayed on the display 12 does not correspond to the channel number "11" by the key input from the remote control 2, the processor 10 receives a control signal from the remote control 3 It can be identified that it has not been normally transmitted to the external device 3. That is, the processor 10 displays based on the image signal provided by the external device 3 as a result of the control signal from the remote control 3 not being normally transmitted to the external device 3 due to a transmission error of the control signal. It can be identified that the image being used does not correspond to the key input from the remote control 2. In this case, as described in FIG. 1, the processor 10 may cause the remote control 2 to retransmit 34 a control signal to control the external device 3 according to a key code. For example, the processor 10 may transmit a control code that causes the remote control 2 to retransmit the control signal 34 to the remote control 2.

As described above, according to the processor 10 according to the present embodiment, by actively identifying whether there is an error in transmission of the control signal from the remote control 2 to the external device 3, convenience and accessibility for the display device 1 Can improve.

Meanwhile, the processor 10 identifies the number of digits of the channel number 61, and according to whether the identified digits correspond to the number of digits of the key input from the remote control 2, the image displayed on the display 12 is displayed on the remote control 2 Whether it corresponds to the key entered in can be identified.

For example, if the number of digits of the channel number 61 displayed on the display 12 corresponds to the number of digits of the channel number "11" by a key input from the remote control 2, the processor 10 provides a control signal The control signal from the remote control 3 is normally transmitted to the external device 3 without a transmission error for, so that the image 11 can be identified as corresponding to a key input from the remote control 2.

On the other hand, when the number of digits of the channel number 61 displayed on the display 12 does not correspond to the number of digits of the channel number "11" by the key input from the remote control 2, the processor 10 transmits a control signal. Since the control signal from the remote control 3 is not normally transmitted to the external device 3 due to an error, it can be identified that the image does not correspond to the key input from the remote control 2. In this case, as described in FIG. 1, the processor 10 causes the remote control 2 to retransmit 34 a control signal to control the external device 3 according to the key code. For example, the processor 10 may transmit a control code that causes the remote control 2 to retransmit the control signal 34 to the remote control 2.

As described above, according to the processor 10 according to the present embodiment, compared to the case of comparing the channel number 61 and the channel number input from the remote control 2, the control signal from the remote control 2 to the external device 3 is Since it is possible to reduce the time required to identify whether a transmission error has occurred, convenience and accessibility for the display device 1 can be further improved.

7 shows an example of a method of controlling the processor of FIG. 6. Referring to FIG. 7, the processor 10 transmits a key code of a signal corresponding to a key input from the remote control 2 and to control the external device 3 to the remote control 2 (S71), and the external device 3 An image may be displayed based on a signal received from) (S72).

In addition, the processor 10 can identify the channel number of the displayed image (S73), identify whether the identified channel number corresponds to the input key (S74), and the identified channel number is input key An operation related to a signal transmission error from the remote control 2 to the external device 3 may be performed on the basis of which is identified as not corresponding to (S75).

FIG. 8 shows an example of an operation performed with respect to a signal transmission error in relation to operation S34 of FIG. 3. Referring to FIG. 8, the remote control 2 may include a plurality of number keys 81 for selecting a channel number. For example, when the channel number "11" is selected through the number key 81, the processor 10 may receive a first control signal corresponding to the channel number "11" from the remote controller 2. For example, when the first control signal is an infrared control signal, the processor 10 may receive the first control signal through the second signal receiving unit 15.

The processor 10 may identify a key code corresponding to the channel number "11" in response to reception of the first control signal. For example, the processor 10 identifies whether the control target is the external device 3 based on header information of the first control signal received through the second signal receiving unit 15, and the control target is the external device 3 ), a key code corresponding to the channel number "11" of the first control signal can be identified. For example, the processor 10 may identify a key code corresponding to the channel number "11" by referring to a lookup table for a key code for each channel number of the external device 3.

The processor 10 may transmit 83 the identified key code to the remote control 2 so that the remote control 2 transmits a second control signal to the external device 3. For example, the processor 10 maps the key code corresponding to the channel number "11" to the second control signal based on the key code 83 transmitted to the remote control 2, and the key code is mapped. The second control signal can be transmitted 85 to the external device 3.

The processor 10 may identify whether the image displayed on the display 12 corresponds to the channel number "11" input through the number key 81 in response to the transmission 85 of the second control signal. For example, the processor 10 may identify the channel number 11 of the image or the number of digits 62 of the channel number 11 based on the image signal received from the external device 3 in response to the second control signal. have. The channel number 61 or the number of digits 62 of the channel number 11 may be identified through EPG of an image signal, or may be identified through optical character recognition when displayed together with an image.

If, the processor 10, the channel number 11 or the number of digits 62 of the channel number 11 of the image corresponds to the number of digits of the channel number "11" or channel number "11" input through the number key 81 If not, it is possible to transmit (84) a control code that causes the remote control (2) to retransmit (86) the second control signal to the external device (3). The control code may include, for example, a key code corresponding to the channel number "11".

In some cases, in response to the retransmission 86 of the second control signal, when it is identified that the control signal has not been normally transmitted to the external device 3, the processor 10 is used when a transmission error for the control signal is not identified. Until then, it is possible to cause the remote control 2 to repeatedly transmit the second control signal to the external device 3.

In this way, the processor 10 of the present embodiment identifies the key code corresponding to the first control signal to control the external device 3 and transmits it to the remote control 2, thereby causing the remote control 2 to cause the external device 3 The second control signal to be controlled is transmitted to the external device 3, and whether a transmission error of the second control signal is detected can be actively identified. In addition, an operation corresponding to a transmission error of the second control signal, for example, by causing the remote control 2 to repeatedly transmit the second control signal to the external device 3, when a transmission error for the second control signal occurs. Even so, it is possible to improve the convenience and accessibility of the display apparatus 1 by preventing the user from repeatedly entering keys.

9 shows another example of an operation performed with respect to a signal transmission error in relation to operation S34 of FIG. 3. Hereinafter, with reference to FIG. 9, when the channel number "11" is selected based on the key input from the remote control 2, an operation performed with respect to a signal transmission error will be described in detail.

Processor 10, based on the key input from the remote control 2, for example, when the channel number "11" is selected through the channel number UI 41, identifies a key code corresponding to the channel number "11" and identifies By transmitting (31) the obtained key code to the remote control (3), it is possible to cause the remote control (3) to transmit (33) the first control signal of the key code to the external device (3).

The processor 10 may identify whether the image displayed on the display 12 corresponds to a channel number "11" by a key input from the remote control 2 in response to the transmission 91 of the first control signal. . For example, the processor 11 determines whether the first control signal is received, or the channel number 61 of the image displayed on the display 12 or the number of digits 62 of the channel number 61 through the remote control 2 Based on whether it corresponds to the number of digits of the channel number "11" or the channel number "11" by the input key, the image displayed on the display 12 corresponds to the channel number "11" by the key input from the remote control 2. It can be identified whether it corresponds or not.

If the first control signal is not received, or the channel number 61 or the number of digits 62 of the channel number 61 of the video is the channel number "11" or the channel number "11" input through the remote control (2). When the number of digits does not correspond, for example, when the transmission 91 of the first control signal is disturbed due to an obstacle 5 on the transmission path of the first control signal, the processor 10 corresponds to the channel number "11". The second control signal of the key code may be directly transmitted 92 to the external device 3 through the signal transmission unit 16.

In addition, in response to the transmission 92 of the second control signal, the channel number 61 of the image or the number of digits 62 of the channel number 61 is the channel number “11” or channel number “input through the remote control 2”. If the number of digits of 11" does not correspond, for example, when the transmission 92 of the second control signal is disturbed due to an obstacle 6 on the transmission path of the second control signal, the processor 10 is the signal transmission unit 16 The second control signal may be retransmitted 93 through.

In addition, even by the retransmission 93 of the second control signal, the channel number 61 or the number of digits 62 of the channel number 61 is the channel number “11” or the channel number “11” input through the remote control 2 If it does not correspond to the number of digits, the processor 10 may repeatedly transmit the second control signal through the signal transmitting unit 16 until a transmission error for the second control signal is not identified.

In this way, the processor 10 directly transmits 92 the second control signal to the external device 3 through the signal transmission unit 16 in response to a transmission error of the first control signal, Convenience and accessibility to the display apparatus 1 may be improved despite transmission errors. In addition, the processor 10 retransmits (93) the second control signal to the external device 3 in response to a transmission error of the second control signal, or repeatedly transmits the second control signal to prevent the user from repeatedly entering a key. Convenience and accessibility for (1) can be further improved.

Meanwhile, the processor 10 may transmit (91) the second control signal to the external device 3 in response to the transmission 31 of the key code to the remote control 2. That is, in the previous embodiment, the processor 10 transmits 92 the second control signal to the external device 3 in response to the transmission error of the first control signal, but in this embodiment, the transmission error of the first control signal Regardless, there is a difference in that the second control signal is transmitted 92 to the external device 3 in response to the transmission 31 of the key code to the remote control 2.

As an example, the processor 10 transmits 31 a key code corresponding to the channel number "11" to the remote control 3 to cause the remote control 3 to transmit the first control signal of the key code to the external device 3 (33) It is possible to directly transmit 92 a key code corresponding to the channel number "11" to the external device 3 through the signal transmission unit 16. For example, the key code may be directly transmitted 92 to the external device 3 simultaneously or sequentially with the transmission of the key code to the remote control 2.

In this way, if the second control signal is directly transmitted to the external device 3 in response to the key code transmission 31 to the remote control 2, the second control signal is transmitted to the external device despite a transmission error of the first control signal. Since it can be transmitted to (3), as a result of increasing the likelihood of success in transmission of the control signal as a whole, convenience and accessibility for the display apparatus 1 can be improved.

10 shows another example of an operation performed with respect to a signal transmission error in relation to operation S34 of FIG. 3. Referring to FIG. 10, the processor 10 informs that the control signal is not normally transmitted to the external device 3 in response to the image displayed on the display 12 not corresponding to the key input from the remote control 2. The notification UI 101 can be displayed. The notification UI 101 is, for example, simply notifying of a transmission failure of a control signal, or information 102 requesting the presence of obstacles 5 and 6 on the control signal path and removal of the obstacles 5 and 6 It may include.

In addition, the transmission error for the control signal may include an internal error of the remote control 2 itself. For example, when the control signal is not received through the second signal receiving unit 15 in response to the transmission 31 of the control signal, the obstacle 5 on the transmission path of the control signal may be the cause, but the remote control 2 itself The control signal may not be output normally due to an internal problem of. For the same reason, the channel number 61 of an image displayed on the display 2 may not correspond to a channel number by a key input from the remote control 2. In this case, the processor 10 may include information notifying the internal error of the remote control 2 in the notification UI 101.

Meanwhile, the processor 10 displays the notification UI 101 and causes the remote control 2 or the signal transmitting unit 16 to control signals until the image displayed on the display 12 corresponds to the key input from the remote control 2. Can be retransmitted.

As described above, according to the processor 10 of the present embodiment, when the control signal is not normally transmitted to the external device 3 due to a transmission error or the like, the notification UI 101 is displayed, so that the user is informed of the situation of the transmission error. It is possible to improve the convenience and accessibility of the display device 1 by making it possible to recognize and inducing it to solve a transmission error.

The various embodiments disclosed in this document may be implemented as software including one or more instructions stored in a storage medium readable by a machine such as the display device 1. As an example, the processor 10 of the display apparatus 1 may call at least one command among one or more commands stored from a storage medium and execute it. This makes it possible for a device such as the display device 1 to be operated to perform at least one function according to the at least one command called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here,'non-transient' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic wave), and this term is used when data is semi-permanently stored in the storage medium and temporarily stored It does not distinguish between cases.

For example, a method according to various embodiments disclosed in the present document may be included in a computer program product and provided. Computer program products can be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a device-readable storage medium (eg, CD-ROM), or through an application store (eg, Play StoreTM) or between two user devices (eg, smartphones). It can be distributed directly, online (eg, downloaded or uploaded). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium that can be read by a device such as a server of a manufacturer, a server of an application store, or a memory of a relay server.

As described above, the present invention has been described in detail through preferred embodiments, but the present invention is not limited thereto and may be variously implemented within the scope of the claims.

1: display device
2: remote control
3: external device

Claims (19)

In the display device,
display;
A communication unit capable of communicating with a remote control;
A signal receiver capable of receiving a signal from an external device;
Controls the communication unit to transmit a key code of a signal corresponding to a key input from the remote control and to control the external device to the remote control,
Controlling the display to display an image based on a signal received through the signal receiving unit,
Identify whether the displayed image corresponds to the input key,
Performing an operation related to a signal transmission error from the remote control to the external device based on the identification of the displayed image as not corresponding to the input key
Display device including a processor. The method of claim 1,
Further comprising a second signal receiving unit,
The processor, when the signal to control the external device is not received through the second signal receiving unit, the display device to identify that the displayed image does not correspond to the input key. The method of claim 1,
The processor,
Identify the channel number of the video,
A display device for identifying whether the displayed image corresponds to the input key according to whether the identified channel number corresponds to a key input from the remote control. The method of claim 3,
The processor is a display device for identifying the number of digits of the channel number and identifying whether the displayed image corresponds to the input key according to whether the identified digit corresponds to the number of digits of the key input from the remote control. . The method of claim 1,
The processor controls the communication unit so that the remote control retransmits a signal to control the external device, thereby performing an operation related to the signal transmission error. The method of claim 1,
The processor controls the display to notify of the signal transmission error. The method of claim 2,
Further comprising a signal transmission unit capable of transmitting a signal to the external device,
The processor is a display device that controls the signal transmission unit to transmit a signal to control the external device to the external device. The method of claim 1,
The processor,
Controlling the display to display a GUI in which a plurality of keys can be selected,
A display device for identifying a key selected from among the plurality of keys as the input key. The method of claim 2,
The processor is a display device for identifying the input key based on a signal received from the remote control through the second signal receiving unit. In the control method of the display device,
Transmitting a key code of a signal corresponding to a key input from a remote control and controlling an external device to the remote control;
Displaying an image based on a signal received from the external device;
Identifying whether the displayed image corresponds to the input key; And
And performing an operation related to a signal transmission error from the remote control to the external device based on the identification of the displayed image as not corresponding to the input key. The method of claim 10,
The identifying whether the displayed image corresponds to the input key includes: when a signal for controlling the external device is not received, identifying that the displayed image does not correspond to the input key. Control method of a display device comprising. The method of claim 10,
The step of identifying whether the displayed image corresponds to the input key,
Identifying a channel number of the video; And
And identifying whether the displayed image corresponds to the input key according to whether the identified channel number corresponds to a key input from the remote control. The method of claim 12,
The step of identifying the channel number of the image includes identifying the number of digits of the channel number,
The step of identifying whether the displayed image corresponds to the input key according to whether the identified channel number corresponds to a key input from the remote control may include: And identifying whether the displayed image corresponds to the input key according to whether it corresponds to or not. The method of claim 10,
The step of performing an operation relating to a signal transmission error from the remote control to the external device includes controlling the remote control to retransmit a signal to control the external device. The method of claim 10,
The step of performing an operation relating to a signal transmission error from the remote control to the external device includes notifying the signal transmission error. The method of claim 11,
The step of performing an operation relating to an error in signal transmission from the remote control to the external device includes transmitting a signal to control the external device to the external device. The method of claim 10,
Transmitting a key code of a signal to control the external device to the remote control,
Displaying a GUI for selecting a plurality of keys; And
And identifying a key selected from among the plurality of keys as the input key. The method of claim 11,
The step of transmitting a key code of a signal to control the external device to the remote control includes identifying the input key based on a signal received from the remote control. A computer-readable code, in a recording medium storing a computer program including a code for performing a method for controlling a display device, wherein the method for controlling the display device comprises:
Transmitting a key code of a signal corresponding to a key input from a remote control and controlling an external device to the remote control;
Displaying an image based on a signal received from the external device;
Identifying whether the displayed image corresponds to the input key; And
And performing an operation related to a signal transmission error from the remote control to the external device based on that the displayed image is identified as not corresponding to the input key. The recording medium on which the program is recorded.

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