KR20090070243A - Apparatus and method for displaying - Google Patents

Abstract

A display apparatus and a method thereof are provided to enable a user to see the viewing history of an image, which is displayed through a display unit, in OSD(On Screen Display). A scalar(12) changes the resolution of an inputting image, and a display unit(13) displays an image outputted from the scalar. A controller(11) captures an image through the control from the scalar. A memory unit(14) stores a captured image, and the controller controls the display of the captured image in OSD through the display unit.

Description

Image display device and image display method {Apparatus and method for displaying}

An embodiment of the present invention relates to a video display device capable of displaying an image having a history viewed by a user, wherein the video display device may be a monitor or a TV.

The video display device receives a video signal transmitted from an external device such as a PC and outputs it, and decodes the encoded signal by wired or wirelessly receiving a signal transmitted from a broadcasting station such as a TV to a user. All of the devices that output for viewing are included.

Such an image display device includes a display unit for displaying an image on a screen based on an image signal, and the display unit may be implemented as a conventional CRT, LCD, PDP or OLED.

By using such an image display device, a user may access an internet to view an image provided by a website, or select a specific channel among received broadcast programs to watch a broadcast program.

However, in the case of minors, the guardian needs to provide instruction on access to adult sites and viewing of adult broadcasts.

An embodiment of the present invention proposes an image display apparatus and an image display method capable of confirming a past image displayed through an image or an image display apparatus having a history viewed by a user.

In addition, an embodiment of the present invention is to display the time captured with the capture screen of the image having a viewing history or the past image that is displayed, the image display device that can manage the viewing history for the user of the image display device and An image display method is proposed.

In addition, an image display apparatus and an image display method capable of managing a viewing history of a user of an image display apparatus by managing an image captured at intervals or irregularly set by a user are provided.

An image display device according to an embodiment of the present invention comprises a scaler for changing the resolution of the input image; A display unit displaying an image output from the scaler; A controller configured to control the scaler to capture the image; And a memory unit in which the captured image is stored, wherein the controller controls the captured image to be displayed as an OSD (on screen display) through the display unit.

In addition, the image display device according to an embodiment of the present invention comprises a display unit for displaying an image, wherein the control unit of the image display device to display the image displayed on the display by the OSD on the display unit It is characterized by.

According to the embodiments of the present invention as proposed, since the image displayed through the display unit can be confirmed by the OSD, there is an advantage that the viewer's viewing history can be easily checked.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, matters that can be easily changed by those skilled in the art from the embodiments disclosed below or the deletion, addition, change, etc. of the disclosed components will be within the scope of the matters of the present invention.

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

1 is a block diagram illustrating a configuration of an image display device according to a first embodiment of the present invention, and the first embodiment relates to a monitor showing an image provided from the outside to a user.

Accordingly, the user may use the image display device according to the first embodiment of the present invention to view an image provided by a web site or to view an image recorded on a recording medium such as a CD or a DVD. When the image display device is connected to a cable broadcasting station, viewing of a broadcast program may also be possible.

Referring to FIG. 1, a case in which the image display device 10 is connected to a PC or the like is illustrated. In this case, the image display device 10 may include a display unit 13 for displaying an image and an RGB under control. A scaler 12 for changing a gain, a control unit 11 controlling to capture an image displayed through the display unit 13, and an image captured under the control of the control unit 11 The memory unit 14 to be stored is included.

The display unit 13 may be an LCD, a PDP, an OLED, and the like, and the scaler 12 changes a gain of an externally input RGB image signal, and resolution or a user-specified resolution of the display unit 13. It changes the resolution of the original video signal accordingly.

Here, the control unit 11 may control to capture an image displayed through the display unit 13, and the captured image may be performed by the scaler 12.

More specifically, since it may be performed by a scaler IC for changing the resolution of the input image, the capture of the image displayed (or to be displayed) through the display unit 13 is performed by the scaler 12. It can be said that, as a separate configuration for capturing an image, the image capturing unit can play its role.

In addition, the controller 11 periodically captures an image whose resolution is changed by the scaler 12 and stores it in the memory unit 14.

In addition, since the user generally checks the contents of the captured image, it may be possible to capture the image before the resolution is changed by the scaler 12. As described above, in addition to capturing an image by the scaler 12, a separate image capturing unit is configured to capture and store any one of an image whose resolution is changed by the scaler or an RGB image provided to the scaler. Can be configured.

That is, the idea of the present invention is to capture the image of the user who has watched or displayed the past image through the image display device, so that the user can check it later, so that the scaler 12 and the display unit What is necessary is just to capture the image displayed via the said display part 13 in relationship with (13).

To this end, an image before the resolution change by the scaler 12 may be a capture target, and an image whose resolution is changed by the scaler 12 may also be a capture target.

In addition, the control unit 11 stores information of the time and date captured together with capturing the image in the memory unit 14, and displays the captured time when checking the captured image stored in the memory unit. do.

The controller 11 may compress the captured screen and store the captured screen in the memory unit 14. To this end, the controller 11 is connected to the controller 11 to compress an image. encoder and a decoder for decoding the encoder.

In addition, the controller 11 serves to transmit the capture signal to the scaler 12 and may be implemented as a video processor IC.

Although not shown in FIG. 1, a user input unit for receiving a command for checking a captured image may be further configured, and a user may set a password or change a password through the user input unit. Can be.

Even when the user wants to check the captured image stored in the memory unit 14, the user may input the password by operating the user input unit and check the stored image.

In order to check the image stored in the memory unit 14 on an image display device, for example, an OSD (On Screen Display), the OSD generator 15 is included in the image display device.

The OSD generation unit 15 displays a screen for 'image', 'color', 'position', 'screen setting', and 'setting' for setting related to the display of the image display device according to a user's request. do. For a typical monitor, 'image' is for brightness, contrast and gamma, 'color' is for red, green and blue, 'position' is for horizontal and vertical, and 'screen setting' is for frequency, fine tuning and sharpness. For 'Setting', OSD is provided for user to set language, OSD position.

In this regard, a screen displayed as an OSD on the image display apparatus is illustrated as an example in FIG. 2.

Meanwhile, display of the captured image stored in the memory unit 14 may be performed through the OSD generation unit 15, and the resolution may be somewhat reduced, but the user grasps the contents of the captured screen. It will be enough to do it. Therefore, the captured image may also be compressed and stored in the memory unit 14, and the memory unit 14 may be implemented as an EEPROM.

For example, if a parent wants to check a website that his or her child has accessed, it would be sufficient for the parent to grasp the content of the website that was accessed or the content of the image that was displayed from the captured image.

In this regard, the captured image displayed by the OSD through the OSD generation unit 15 may be of a lower quality than the video of the DVD or broadcast program, but the image having a viewing history or the past image that has been displayed may be used. It will be said that there are features.

In addition, the control unit 11 allows the image to be captured according to a capture period set by the user. The controller 11 is not necessarily limited to periodically capturing an image, and may be configured to capture an image at random. .

2 is a diagram illustrating an example of a user menu displayed as an OSD through an image display device.

As described above, FIG. 2 illustrates a menu for setting an image or a color of the image display device itself, and shows a menu for setting image capture or checking a captured image.

When the user operates the user input unit provided in the image display device and selects the 'screen capture' menu, the user may select a menu for setting the image capture and a menu for checking the stored captured image.

Prior to this, when the 'screen capture' menu is selected, a process for the user to enter a password may be further configured, which allows only a specific user to check the contents of the image capture and perform its settings. For sake.

The menu of the capture setting may include a matter of whether to use the image capturing function and a content of a cycle of image capturing, and the menu of capturing confirmation is for checking the stored captured image with the OSD.

An embodiment of the invention described above is schematically shown in FIG. 3.

Referring to FIG. 3, a web page screen connected through an image display device or an image provided on the web (or an image stored in a PC) is displayed (S101).

The controller of the image display device counts the time at which the image is displayed (S102), and monitors whether the time of the period set by the user is reached (S103).

In operation S104, an image displayed through the image display device is captured and stored in the memory unit at set intervals. At this time, the control unit also stores the time at which the captured image is displayed or the captured time. In this case, confirmation of the image stored in the memory unit may be possible only by a specific user who knows the password.

In the display of the captured image, the captured time is also displayed together with the captured image, so that the user can also know the time of viewing the corresponding image.

In the above, the image display apparatus according to the embodiment of the present invention has been described as an example of a monitor, but the idea of the present invention can be applied to a TV having an HDD (hard disk drive) for recording recording of an image. Let's take a closer look at this.

4 is a block diagram showing a configuration of an image display device according to a second embodiment of the present invention, and the second embodiment is directed to a TV provided with a memory provided for recording an image.

Referring to FIG. 4, the video display device of the present embodiment includes a tuner 10 for tuning and outputting a broadcast signal, a demodulator 20 for demodulating a channel selected through the tuner 10, and a demodulated signal. Demultiplexer (Demux) 30 for demultiplexing the audio, video, DVB-SI and PSIP table, a video signal processor 40 for controlling to output the decoded video signal, and the video signal processor 40 And a display unit 50 on which an image signal output from the display unit is displayed.

In addition, a second memory unit 62 is provided for recording a broadcast program, and a first memory unit 61 in which a captured image is stored as in the first embodiment is provided.

In addition, a control unit 90 for transmitting a control signal for capturing an image displayed through the display unit 50 is included, and an OSD generating unit 70 for displaying the captured image as an OSD is included. .

In addition, a user selector 80 for receiving a user's request command is included to allow the user to control the operation of the image display device.

In detail, the tuner 10 tunes the TV broadcast signal received through the antenna ANT to a broadcast signal having a frequency band corresponding thereto according to the tuning control signal of the controller 90.

The broadcast signal of the tuned specific channel is output by the demodulator 20 in the form of a transport stream through a demodulation process and an error correction process. The demultiplexer 30 separates data into an image signal, an audio signal, and various additional data, and outputs the data in the form of a bit stream.

The video signal separated by the demultiplexer 30 is decoded and displayed on the display unit 50 after being processed by the video signal processor 40. The image signal processing unit 40 includes a scaler for converting the image signal to match the vertical frequency, resolution, aspect ratio, etc., in accordance with the output standard of the display unit 50.

The scaler may also perform a role of capturing an image displayed or to be displayed through the display unit 50 as in the first embodiment.

Meanwhile, the controller 90 controls the image signal processor 40 to capture the image at every cycle set by the user, and stores the captured image in the first memory unit 61.

The controller 90 also stores information of a time at which an image is captured, in the first memory 61, and displays the time information with an OSD when the user later checks the captured image. .

In the storage of the captured image (and time information), when the capacity of the first memory unit 61 is exceeded, the controller 90 stores the captured image in the second memory unit 62. You can do that.

The second memory unit 62 may be implemented as an HDD as provided for recording a broadcast program, and the controller 90 may capture an image captured separately from the broadcast program recorded in the second memory unit 62. To be stored.

When the captured image is stored in the second memory unit 62 made of a large capacity memory such as an HDD, more captured images may be stored.

In the embodiment of the present invention, the recorded captured image of the broadcast program should be distinguished, and the captured image according to the spirit of the present invention can be viewed by the OSD at the request of the user.

That is, when the user manipulates the user input unit 80 to output the OSD screen on the display unit 50, the captured image stored in the first memory unit 61 may be displayed as an OSD. Should also be included.

In addition, as described above, the setting for the capture of the image and the setting for the period of the image capturing should also be possible.

The controller 90 controls the OSD generation unit 70 to control a captured image stored in the first memory unit 61 or the second memory unit 62 to be displayed as an OSD. Along with the indication, information of the captured time is also displayed.

As such, in a TV having a memory such as a large capacity HDD, utilization of a space for storing an image captured by the scaler may be further increased.

FIG. 5 is a diagram illustrating an OSD screen displayed through a display unit according to a second embodiment of the present invention.

In a video display device such as a TV, when a user enters an OSD menu, settings for a channel, a video, a voice, and the like are displayed. Is displayed.

A menu for confirming a password may be configured to allow only a specific user to set and confirm the captured image displayed on the OSD through the display unit 50.

After inputting the padword, a menu for changing a password may also be displayed.

In addition to the menu for confirming the captured image stored in the first memory unit 61, a menu for setting a period of image capturing is also displayed.

In addition, the stored captured image is displayed on the OSD, and the user can check the captured time by viewing the displayed captured image, and can guess the user who viewed the corresponding image from this.

According to the embodiments of the present invention, it is possible to manage a viewing history of a web page displayed through the image display apparatus, an image provided from the web page, a broadcast program, and the like.

1 is a block diagram showing a configuration of an image display device according to a first embodiment of the present invention.

2 is a diagram illustrating an example of a user menu displayed as an OSD through an image display device.

3 is a flowchart showing an image display method according to a first embodiment of the present invention.

4 is a block diagram showing a configuration of an image display device according to a second embodiment of the present invention.

5 is a diagram illustrating an OSD screen displayed through a display unit according to a second embodiment of the present invention.

Claims (14)

A scaler for changing a resolution of an input image; A display unit displaying an image output from the scaler; A controller configured to control the scaler to capture the image; And And a memory unit in which the captured image is stored. And the control unit controls the captured image to be displayed on an on screen display (OSD) through the display unit. The method of claim 1, And the controller controls the scaler to capture an image displayed through the display unit at intervals set by a user. The method of claim 1, And the control unit stores the captured date or time information together with capturing an image. The method of claim 1, And the control unit compresses the captured image and stores the captured image in the memory unit. The method of claim 1, And the controller controls the captured image to be displayed in the OSD only when a preset password is input by the user. In the video display device having a display unit for displaying an image, And a controller of the image display device to display an image displayed through the display unit on the display unit as an OSD. The method of claim 6, And the controller controls a scaler for changing a resolution of an image to capture an image displayed through the display unit. The method of claim 6, And the controller is configured to display the information of the date or time on which the image is displayed on the OSD together with the image displayed through the display unit. The method of claim 6, And the control unit further displays a menu for inputting a password as a user authentication procedure through the OSD. The method of claim 6, A first memory unit for storing the captured image and a second memory unit for recording an image, And when the capacity of the first memory unit is insufficient, the controller stores the captured image separately from the image recorded in the second memory unit. In a video display device capable of displaying an image, Capturing and storing an image displayed through the display unit; And And displaying and capturing the captured image by an OSD. The method of claim 11, And the captured time or date is displayed together with the captured image in the OSD. The method of claim 11, In the capturing an image displayed through the display unit, an image capturing process is performed at intervals set by a user. The method of claim 11, And displaying and capturing the captured image by an OSD is performed only when a specific password is input.

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