KR20100042419A - Image display apparatus and method for controlling the same - Google Patents

Abstract

PURPOSE: An image display apparatus and a method for controlling the same are provided to guide each step of the operation of the image display apparatus for a user. CONSTITUTION: High-definition multimedia interface(HDMI) receiving unit(230) receives image signal from an external device. A video processing unit(220) processes the image signal from the HDMI receiving unit. A display unit(210) outputs the image signal. A control unit(260) displays a user interface which includes information related to the receiving state of the image signal or information related to the image signal output from the display unit.

Description

Image display apparatus and method for controlling the same

The present invention relates to an image display apparatus, and to an apparatus including a user interface capable of guiding a diagnosis and solving a problem when a video or audio output of the image display apparatus is not normal. will be.

Most home appliances, including visual displays, provide a user manual by default. However, users often preferentially read only the most basic necessary functions in these manuals, and frequently lose them over time.

Recently, in order to increase user convenience and reduce costs, electronic manual functions have been added to video display devices.

However, as the image display device is used in conjunction with other electronic products and complicated functions are added, it is difficult to utilize the electronic manual stored in the image display device and it is difficult to overcome the disadvantages of the existing manual which is inconvenient to use. It is true. That is, when a problem occurs while using the image display device, there is a difficulty in resolving the information provided by the manual or finding various items of the manual.

Related arts in the prior art include the contents of the user manual stored in the memory of the television set for the user to browse, the contents of the help information displayed according to the position of the cursor on the menu screen, and the function setting. Discussing whether or not the normal state of the manual information is displayed.

However, these technologies have a problem in that the user must find the corresponding information through various steps through the remote control, or the manual itself is limited to the navigation of each function unit and its setting method. .

An object of the present invention is to propose an image display apparatus and a method of controlling the same, which can help a user diagnose a problem of the image display apparatus more easily and guide a solution to the problem occurring in the image display apparatus. It is done.

An image display apparatus according to the present embodiment includes a signal receiving unit for receiving an image signal provided from an external device; A video processor which processes an image signal received through the signal receiver; A display unit which outputs an image signal transmitted from the video processor; And a controller configured to display, on the display unit, a user interface including information on a reception state of the video signal or information on output of the video signal to the display unit, wherein the user receives the signal receiver in the user interface. Alternatively, the message may further include a message for guiding the setting of the display unit.

In addition, the image display device of the present embodiment is a video display device for providing information on the operation of the image display device to the user interface, the signal receiving unit for receiving a voice signal provided from an external device; An audio processor which processes a voice signal received through the signal receiver; An audio output unit configured to output a voice signal transmitted from the audio processor; A display unit displaying a user interface including information on an operation of the image display device; And a controller configured to display, on the display, a user interface including information on a reception state of the audio signal or information on output of an image signal to the audio output unit. Characterized in that it further includes a message for guiding to change the settings of the receiver or the audio output unit.

In addition, the control method of the image display apparatus according to the embodiment includes receiving a video or audio signal from an external device to be connected, and outputting the same, comprising: receiving a request for checking the reception and output of the video or audio signal; Determining whether an external device is connected and providing a first user interface including information on a connection state of the external device; And checking whether a video or audio signal is provided from the external device, and providing a second user interface including information on whether the video or audio signal is received.

By the proposed image display apparatus and its control method, the user can access the operation of the image display apparatus step by step, and the problem thereof can be easily solved through the guided user interface.

Hereinafter, with reference to the accompanying drawings for the present embodiment will be described in detail. However, the scope of the idea of the present invention may be determined from the matters disclosed by the present embodiment, and the idea of the invention of the present embodiment may be performed by adding, deleting, or modifying components to the proposed embodiment. It will be said to include variations.

In the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

In an embodiment of the present invention, the present invention relates to an image display device capable of connecting an external device and outputting an image or an audio provided from the external device, wherein an image is not normally output through the image display device. Cases and cases where audio is not normally output and cases of abnormal operation other than this will be described with a focus on how to guide problem diagnosis and solution.

The diagnosis of the state of the video display device proposed by the present invention and a troubleshooting guide method according to the result will be described by taking an example where the video display device is connected to a DVD player.

1 is a diagram briefly configuring a system according to an embodiment of the present invention.

As shown in FIG. 1, the video display device 20 according to an exemplary embodiment of the present invention is connected to a DVD player 10 as an external device, and receives a video signal and an audio signal provided from the DVD player 10. It receives and outputs it through the screen and the speaker.

The video display device 20 is a type of sink device and is connected to the DVD player 10 through an HDMI cable 30, and the video display device 20 responds to an abnormal output of a video or audio signal. Means information is displayed on the screen, and means for guiding a solution to an abnormal problem is provided.

2 is a diagram illustrating a detailed configuration of an image display device and an external device according to an embodiment of the present invention.

Referring to FIG. 2, a DVD player is illustrated as an external device 100 connected to the video display device 200 according to an embodiment, and the external device includes a decoder unit 110 for decoding video and audio signals of an MPEG2 stream. ), An HDMI transmitter 110 for outputting the signal decoded by the decoder 110 to HDMI, and a transmitter side controller 130 for controlling the decoder 110 and the HDMI transmitter 120. do.

The decoder 110 receives an MPEG 2 stream reproduced from a DVD drive or delivered from a set-top box and decodes the MPEG-2 stream, and the HDMI transmitter 120 inputs a digital video signal and an audio signal output from the decoder 110. TMDS (Transition Minimized Differential Signaling Interface) is encoded and transmitted to the video display device 200 through an HDMI cable.

The transmitter control unit 130 controls the decoder 110 and the HDMI transmitter 120 to provide a video and audio signal to the video display device 200, and the I2C with the HDMI transmitter 120. Perform communication.

On the other hand, the image display device 200 is a signal receiving unit for receiving a video or audio signal provided from an external device that is a predetermined signal source, and processing the signal provided through the signal receiving unit to output the display unit 210 or audio A signal processor for outputting video and audio to the unit 250, and a control unit 260 for controlling the signal receiver and the signal processor.

As the signal receiver, an HDMI receiver 230 for receiving video and audio signals transmitted from the HDMI transmitter 120 is exemplified. As the signal processor, a video processor 220 for processing a video signal and an audio processor 240 for processing a voice signal are disclosed.

In addition, the image display apparatus 200 includes an EDID ROM configured to store an EDID (Extended Display Identification Data) of an external device connected to a display unit 210 for outputting an image, an audio output unit 250 for outputting audio, and an external device. 270).

In addition, the image display apparatus 200 further includes a memory unit 280 that stores reference values for the functions and operations of the image display apparatus, and the controller 260 is internal to software when a user inputs a specific key. The operation checking processor of the sequential video display device is processed according to the checking process configured in the drawing.

In particular, the controller 260 outputs, on the display unit 210, a UI for step-by-step searching for a cause in relation to an abnormal operation of the image display device, and a UI for guiding a solution to the cause. This will be described in more detail below.

Although the HDMI receiver 230 is illustrated as a signal receiver for receiving an image or an audio from the image display apparatus 200, a video signal corresponding to various external devices may have a signal in the form of a composite video baseband signal (CVBS). The terminal may further include a received AV terminal, an S-Video terminal, a COMPONENT terminal, a PC-signal terminal, and a DVI (Digital Video Interactive) terminal.

The EDID ROM 270 stores EDID data, wherein the EDID data includes display characteristics information, including a manufacturer, a specification, a supported resolution, a color format, and the like. Stored.

In addition, the EDID ROM 270 is connected to the transmission control unit 130 through a display data channel (DDC) line 41, and the transmission control unit 130 is connected to the EDID ROM 270 through the DDC line 41. The data can be read. The controller 260 of the image display device controls various devices constituting the image display device, and performs I2C communication with the HDMI receiver 230, which is illustrated as a signal receiver.

The HDMI transmitter 120 and the HDMI receiver 230 are connected to a plurality of channels 43 and a hot plug detection (HPD) line 42, and the plurality of channels 43 transmit digital image data and audio data. As a route for it, it includes three data transmission channels CH0, CH1, CH2 and one clock channel CHC.

The HPD line 42 is provided to determine whether the DVD player and the video display device are connected by the HDMI cable in the transmission control unit 130. The video display device 200 is the DVD player 100 and the HDMI cable. When connected to, the high signal is sent to the HPD line 42 to indicate its presence.

On the contrary, the video display device 200 transmits a low signal to the HPD line 42 when the video display device 200 is not connected to an external device such as the DVD player 100 via an HDMI cable. Therefore, the transmitter 160 of the external device checks the voltage of the HPD line 42 and displays an image on the external device 100 when the voltage of the HPD line 42 is approximately 2.2 V to 5.05 V (high signal). It is determined that the device is HDMI-linked, and when the voltage of the HPD line 42 is about 0V to 0.4V, it is determined that the image display device is not HDMI-linked to the external device.

In particular, the controller 260 of the image display apparatus 200 guides a method of diagnosing and solving a problem when an image and an audio signal are abnormally output through the display 210 or the audio output unit 250. Outputs a screen to the display unit 210. For example, when the intensity of the video or audio signal provided to the signal receiving unit is weaker than a predetermined value, information on this is provided on the display unit.

The image display apparatus 200 may perform an abnormal operation that does not meet the user's request due to a poor connection of an external device that provides a video or audio signal, or incorrect setting of the user. In this case, the control unit 260 of the video display device can be classified into a case where the video output of the image display device is abnormal and a case where the audio output is abnormal, so as to accurately analyze the cause of each case. It provides a guide to guide the normal operation of the image display device accordingly.

When a user inputs a function key (not shown) included in the remote controller, a user interface for guiding the cause of abnormal operation by the control unit 260 of the image display apparatus 200 and a solution thereof is provided.

In the disclosure of an embodiment of the present invention, that the video or audio signal is not normally output includes a case in which the user does not recognize the video or audio signal even if the video or audio signal is output according to the user setting. Therefore, if it is a matter that can be considered that the video or audio is not normally output from the user's point of view, it can be seen as an abnormal output of the video or audio signal even if the output for the input signal is normally performed.

To this end, the controller 260 of the image display apparatus 200 refers to whether the set value of the image display apparatus is the same as the reference value previously stored in the memory unit 280, and guides the user to the reference value. It is done.

First, an operation for checking whether or not a malfunction of the video signal output and an operation for resolving the same will be described, and will be described with reference to FIG. 2 and the accompanying drawing 3. 3 is a flowchart illustrating a control method of an image display apparatus according to an exemplary embodiment of the present invention.

A case where an image signal is not normally output through the display unit 210 will be described.

If the video signal is not normally output, for example, the connection of the external device is poor, the video signal is not provided completely, the external input selection of the video display device is set incorrectly, or the video display device is set to the power saving mode. If the screen is dark, it may be.

When the user inputs a command (eg, a function key of the remote controller) for confirming whether the image display apparatus is abnormally operated (S101), a message for checking whether to check the video signal output or the audio signal output. It provides to the user (S102).

When the user requests to check the output of the video signal, the controller 260 provides a user interface for confirming the cable connection of the current input state (S103).

In other words, it is determined whether there is a cable connected to the current external input state of the image display apparatus, and whether the external input mode is changed when the cable state connected by the user and the external input state of the image display apparatus are different. A user interface for checking whether or not is provided (S104).

For example, when a user mistaken that an external device such as a DVD player is connected to a video display device, and only the external input mode of the video display device is set to HDMI, the user may be mistaken for an abnormal operation of the video display device. This may be the case when a diagnosis is requested.

In this case, the controller 260 continuously applies HPD signals to a plurality of ports provided in the HDMI module in order to check which port the DVD player selected by the user is connected to, and then, Check the connection.

As a result, the controller 260 generates a UI that the currently selected external input mode is not appropriate unless there is a cable connected in the current external input mode. If the port to which the external device is connected is the HDMI 1 terminal and the external input mode of the video display device is set to Component 1 or HDMI 3, check whether to change the external input mode to the connected external device. Provides a UI.

The user may automatically switch to the corresponding connection port while recognizing that the user inputs the wrong input mode while looking at the provided UI.

Next, when the input port of the external device to which the controller 260 is currently connected and the external input mode selected by the user are the same, it is checked whether there is a signal provided from the external device (S105).

That is, the controller 260 checks the connection state of the external device, and then proceeds to determine whether there is a signal provided from the external device. Therefore, the UI provided to the user transitions from the menu for the connection state of the external device to the menu for the presence or absence of a signal provided from the external device.

The case where a plurality of external devices are connected to the video display device and the case where a single external device is connected need to be described separately.

When a plurality of external devices are connected to the video display device 200, although a first external device is connected to an external input mode of a video display device selected by a user, a signal is provided from the first external device. There may be times when it is not. In this case, the controller 260 checks whether a signal is provided from the second external device, and prompts the user for a UI including a message indicating whether to change an external input from the first external device to the second external device. to provide.

If a signal is not provided from the external device when a single external device is connected to the image display device 200, the controller 260 does not receive a signal due to the non-operation of the external device. Prints a UI that tells you that you aren't doing it.

That is, a message is displayed on the UI to guide the user to confirm the operation of the external device connected to the image display device.

Next, if a signal is normally received from the connected external device, a process of checking the screen state of the display unit 210 is performed.

For example, after the user sets the image display device to a power saving mode, the user may mistake the abnormal operation of the image display device for the display image to be displayed in overall darkness.

In this case, the controller 260 checks whether the setting related to the current image quality is changed by using a reference value previously stored in the memory unit 280.

That is, the controller 260 displays information about an image display mode currently set by the user and a standard image mode preset by the user (S106).

The image display apparatus may include a power saving mode or a burial mode in relation to the display of an image, wherein the power saving mode is a content that darkens the screen in stages, and the burial mode is a content that brightens the screen in stages.

Therefore, the controller 260 displays a UI for confirming whether to change the currently set image quality value to a reference value stored in the memory unit 280, and when the user requests to change the image quality to a reference value, The controller 260 causes the image quality setting by the video processor 220 to be processed according to the reference value.

Then, even after providing the UI for the image quality setting of the image display apparatus, if the user still thinks that the image display apparatus is abnormal, that is, when the UI for the image quality setting requests the next step of checking , Perform a diagnosis about the resolution.

That is, the controller 260 compares the resolution of each input source supported by the display unit of the image display device with the resolution of the currently connected external device, and provides information on this to the UI (S107).

For example, when the resolution of an image signal provided from an external device is out of the maximum resolution provided by the image display device, a UI indicating that smooth output of the image due to the difference in resolution is not performed.

In summary, the image display device according to the present embodiment relates to the image display operation, whether the external device is normally connected to the external input mode of the image display device, and a UI for guiding a solution thereof, and a connected external device. UI for guiding whether the signal is being received from the device and solving the problem, UI for guiding the setting of the image quality of the video display device and guiding the solution therein, supported resolution of the video display device, and an external device. Provides a UI that includes information about the resolution of the signal being provided.

As a result, the user can check most of the causes of the problems related to the image display, and there is an advantage that can easily solve these problems.

Next, a case in which the user requests a diagnosis regarding the output of the voice signal will be described, with reference to FIG. 4.

A case in which the audio signal is not normally output through the audio output unit 250 will be described.

If the audio signal is not output normally, for example, the connection of the external device is poor, the audio signal is not provided completely, the external input selection of the video display device is set incorrectly, or the speaker of the video display device is turned off. If it is set to (OFF), it may be the case that audio is not output.

In this case, when a user inputs a command (eg, a function key of a remote controller) for checking an abnormal operation of the image display apparatus and requests a voice check, the controller 260 checks a cable connection of a current input state. It provides a UI (S201).

In other words, it is determined whether there is a cable connected to the current external input state of the image display apparatus, and whether the external input mode is changed when the cable state connected by the user and the external input state of the image display apparatus are different. A user interface for checking whether or not is provided (S202).

For example, if the user sets only the external input mode of the video display device to HDMI without a cable connected to an external device such as a DVD player, the user may be mistaken for a malfunction of the video display device and diagnose the diagnosis. This can be the case.

In this case, the controller 260 continuously applies HPD signals to a plurality of ports provided in the HDMI module in order to check which port the DVD player selected by the user is connected to, and then, Check the connection.

As a result, the controller 260 generates a UI that the currently selected external input mode is not appropriate if there is no cable connected in the current external input mode.

If the port to which the external device is connected is the HDMI 1 terminal and the external input mode of the video display device is set to Component 1 or HDMI 3, check whether to change the external input mode to the connected external device. Provides a UI.

The user may automatically switch to the corresponding connection port while recognizing that the user inputs the wrong input mode while looking at the provided UI.

Next, when the input port of the external device to which the controller 260 is currently connected and the external input mode selected by the user are normal, the controller 260 checks whether there is a voice signal provided from the external device (S203).

That is, the controller 260 checks the connection state of the external device, and then determines whether there is a voice signal provided from the external device. Whether or not a voice signal is provided from an external device is possible by checking whether there is a voice signal processed by the audio processor 240 or whether a signal output from the audio processor 240 exists. .

Therefore, the UI provided to the user moves from the menu for the connection state of the external device to the menu for the presence or absence of a signal provided from the external device.

Also in the confirmation process for the normal processing of the audio signal, it is necessary to distinguish between a case where a plurality of external devices are connected to the video display device and a case where a single external device is connected.

When a plurality of external devices are connected to the video display device 200, although a first external device is connected to an external input mode of a video display device selected by a user, a voice signal is output from the first external device. There may be cases where it is not provided. In this case, the controller 260 checks whether a signal is provided from the second external device, and prompts the user for a UI including a message indicating whether to change an external input from the first external device to the second external device. to provide.

When a single external device is connected to the image display apparatus 200, the controller 260 may not receive a signal due to the non-operation of the external device if no signal is provided from the external device. Prints a UI that tells you it's not working.

That is, a message is displayed on the UI to guide the user to confirm the operation of the external device connected to the image display device.

Next, if a voice signal is received from the connected external device, the controller 260 checks a user setting value of the audio output unit 250 (eg, a speaker) (S204).

For example, if the user turns off the speaker of the image display apparatus, the audio is not output through the speaker even though the audio signal is normally received, and the user sets the L (left) / R (Right) output of the speaker differently. In this case, an output deviation between the left and right speakers occurs.

Therefore, the controller 260 checks whether the setting of the current audio output unit 250 is changed by using the reference value previously stored in the memory unit 280.

In addition, the controller 260 displays a set value of the audio output unit 250 currently set by the user and information on a preset standard voice output through the UI.

In this case, in the UI provided to the user, the information indicating that the output of the audio output unit 250 is set to off and no audio is output, or that the deviation is generated because the L / R output of the speaker is set differently Included.

In addition, the controller 260 displays a UI for confirming whether to change the voice output setting value of the currently set audio output unit 250 to a reference value stored in the memory unit 280, and the user outputs the audio output unit. When requesting to change the audio output setting of 250 to a reference value, the controller 260 causes the audio output by the audio output unit 250 to be processed according to the reference value.

Then, even after providing the UI for setting the audio output unit 250 of the video display device, if the user still thinks that the video display device is abnormal, that is, the audio output of the audio output unit 250 is provided. When requesting the check of the next step in the UI for the setting, it provides a UI that checks whether the component video pin and the component audio pins are properly connected according to positions (S205).

When the component audio pins are incorrectly connected, the audio signal to be output to the left speaker and the right speaker may be changed, thereby providing a user with a UI including a message requesting to check the matter.

On the other hand, the message for confirming the connection state of the component video pin can also be used to check the previous image output, if the component video pin is not properly connected, the image output displayed on the screen may be abnormal.

Regarding the operation of the video display device, the user may be mistaken for abnormal operation. For example, among the various additional functions of the video display device, the signal may not be set even if the user does not set the timer. If no input is made for a while, the video display device is automatically turned off.

A user who does not know enough about such a function may mistake it for an abnormal operation when the image display device is suddenly turned off. In this case, the control unit 260 checks the user to explain and reset the function. It can provide a UI to guide the.

In summary, the image display device according to the present embodiment is connected to an external input mode of the image display device, and a UI for guiding a solution for the external input mode of the image display device. Check the connection status of component video or audio pins, check whether the UI is receiving a signal from the device and how to fix it, the audio output setting of the audio output unit, and the UI to guide the solution. Provide the user with a guiding UI.

As a result, the user can identify the cause of most problems related to the voice output, and there is an advantage that can easily solve this problem.

1 is a simplified diagram of a system in accordance with one embodiment of the present invention;

2 is a diagram illustrating a detailed configuration of an image display device and an external device according to an embodiment of the present invention.

3 and 4 are flowcharts illustrating a control method of an image display apparatus according to an exemplary embodiment of the present invention.

Claims (11)

A signal receiver which receives an image signal provided from an external device; A video processor which processes an image signal received through the signal receiver; A display unit which outputs an image signal transmitted from the video processor; And And a controller configured to display, on the display, a user interface including information on the reception state of the video signal or information on output of the video signal to the display. And a message for guiding a user to change a setting of the signal receiving unit or the display unit in the user interface. The method of claim 1, The user interface includes first information on a connection state of the external device, second information on whether a video signal is received through the signal receiver, and third information on a change in image quality by the video processor, The control unit displays the user interface including the first information or the second information on the display unit, and then displays the user interface including the third information on the display unit. Device. The method of claim 2, And the first information includes information on the presence or absence of an external device connected to the signal receiver and information on an external input mode selected by the image display device. The method of claim 2, The control unit provides a user interface including the first information when a check request for receiving and outputting an image signal is input by a user, and the second information when the user requests entry of a next step. An image display apparatus comprising: providing a user interface including; The method of claim 2, The controller provides a user interface including the third information, and provides a user interface including information on the resolution of the external device and the image display apparatus when the user requests to enter the next step. A video display device. An image display device for providing information on the operation of the image display device to the user interface, A signal receiver for receiving a voice signal provided from an external device; An audio processor which processes a voice signal received through the signal receiver; An audio output unit configured to output a voice signal transmitted from the audio processor; A display unit displaying a user interface including information on an operation of the image display device; And And a controller configured to display, on the display unit, a user interface including information on a reception state of the audio signal or information on output of an image signal to the audio output unit. And a message for guiding a user to change a setting of the signal receiver or the audio output unit in the user interface. The method of claim 6, The controller is configured to provide first information on a connection state between the external device and the signal receiver, second information on whether a voice signal exists in the signal receiver, and third information on settings of voice output by the audio output unit. Control to display on the display unit, The control unit displays the user interface including the first information or the second information on the display unit, and then displays the user interface including the third information on the display unit. Device. The method of claim 7, wherein The first information includes information on the presence or absence of an external device connected to the signal receiver and an external input mode selected by the image display device. The second information is information determined by the presence or absence of a signal processed by the audio processing unit or the signal output from the audio processing unit, And the third information includes information about a user setting of whether the audio output unit is operating or information about a preset reference operation of the audio output unit. The method of claim 7, wherein The control unit provides a user interface including the first information when a check request for receiving and outputting a voice signal is input by a user, and the second information when the user requests entry of a next step. And a user interface including the third information when the user requests to enter the next step. In the video display device for receiving a video or audio signal from an external device connected to the output device, Receiving a request for checking the reception and output of the video or audio signal; Determining whether an external device is connected and providing a first user interface including information on a connection state of the external device; And Checking whether the video or audio signal is provided from the external device, and providing a second user interface including information on whether the video or audio signal is received. The method of claim 10, After providing the second user interface, And providing a third user interface including a user's image quality setting content for the video signal or a user's output setting content for the audio signal.

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