KR100806865B1 - Display apparatus and method capable of displaying resolution - Google Patents

Abstract

An image display and a method for displaying a resolution are provided to display a message, for informing a user of generation of errors, and a resolution type when an unsupportable image signal is inputted, so that the user can easily recognize a cause of the error and solve the error without several trials and errors. An image processor(154) processes an image signal, inputted from a signal source(200), into a viewable signal. A display unit(170) displays the processed image signal. A storage(180) stores a resolution range processable in the image processor. A controller(190) controls the image processor and the display unit so as to generate and display a resolution list for displaying the stored resolution range when the image processor does not process the image signal. Under the control from the controller, a switching unit(140) selects and connects either a receiving unit(120) or an input unit(130) to output the output of either the receiving unit or the input unit to a signal processor(150).

Description

Display apparatus and method capable of displaying resolution

1 is a block diagram schematically illustrating an image display apparatus for displaying a resolution according to an exemplary embodiment of the present invention;

FIG. 2 is a diagram illustrating an example of an error message generated by the UI generator of FIG. 1 and displayed on a display unit. FIG.

FIG. 3 is a flowchart for schematically describing a resolution display method of FIG. 1.

Explanation of symbols on the main parts of the drawings

100: image display device 110: user control panel

130: input unit 132: sound input unit

134: image input unit 140: switching unit

152: sound processor 154: image processor

155: UI generation unit 170: display unit

180: storage unit 190: control unit

The present invention relates to an image display apparatus capable of displaying a resolution and a resolution display method. More particularly, when an unsupported video signal is input, not only an error occurs but also a supportable resolution range is displayed to improve user convenience. The present invention relates to an image display apparatus and a resolution display method capable of displaying a resolution.

An image display device such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube) receives an image signal having a set resolution, processes the image signal into a viewable signal, and outputs it on a screen. The video signal is input at one of various resolutions such as (1024 × 768) and (800 × 600), and the resolution of the video signal that can be supported is determined in the video display device.

Therefore, when the resolution of the video signal input to the video display device and the resolution that the video display device can support are different from each other, the video display device cannot convert the video signal into a viewable signal. Error message, such as 'Do not signal' and display it on the screen.

However, the conventional video display device merely displays a message indicating that it does not support the current video signal, and does not suggest a solution for the problem. Therefore, if the user does not have knowledge of the video signal, it is not possible to know why the error message is displayed or why the video signal is not displayed on the screen. In particular, when the user does not have a user manual of the image display apparatus, the user does not know the resolution of the image signal that can be displayed on the image display apparatus, and thus it is inconvenient to undergo a plurality of trial and error to find an input signal suitable for the image display apparatus. Will suffer.

For example, when displaying a video signal output from a personal computer (PC) through a video display device of a TV, if the PC and the video display device support different resolutions, the user does not know the video signal suitable for the video display device. In this case, the PC side has to go through a cumbersome process of adjusting the resolution or vertical frequency of the video signal and outputting it to the video display device until a suitable video signal is found, that is, no error message is displayed.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is not only to indicate that an error has occurred when an unsupportable video signal is input, but also to display a resolution range that can be supported by a user. An object of the present invention is to provide an image display device capable of displaying a resolution and a resolution display method for quickly and accurately solving an error.

According to an aspect of the present invention, there is provided an image display apparatus for displaying a resolution, comprising: an image processor for processing an image signal input from a signal source source into a viewable signal; A display unit which displays the processed video signal; A storage unit which stores a resolution range that can be processed by the image processor; And a controller which controls the signal processor and the display unit to generate and display a resolution list indicating the stored resolution range when the image processor cannot process the image signal.

Preferably, the resolution list includes an optimal resolution supported by the display unit and an optimal frequency supported by the image processor.

On the other hand, a resolution display method according to an embodiment of the present invention, the step of inputting a video signal from a signal source source to process a viewable signal; Generating a resolution list indicating a resolution range that can be processed in the processing step if the video signal is not signal processed in the processing step; And displaying the generated resolution list.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a block diagram schematically illustrating an image display apparatus for displaying a resolution according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an image display apparatus 100 of the present invention is connected to communicate with a signal source source 200 that provides an audio signal and an image signal. Examples of the signal source source 200 include a personal computer (PC), a digital imaging device such as a digital camera or a digital camcorder, a DVD player, and an acoustic signal recorded on an internal recording medium (not shown). The video signal is provided to the video display device 100.

The image display apparatus 100 may include a user manipulation unit 110, a broadcast receiver 120, a demux 125, an input unit 130, a switching unit 140, a signal processor 150, a speaker 160, and a display unit 170. ), A storage unit 180, and a controller 190.

The user manipulation unit 110 is a user interface for allowing a user to request, set, or change a function supported by the image display apparatus 100. The user manipulation unit 110 may include a plurality of buttons, numeric keys, direction keys, function keys, and shortcut keys. For example, a user manipulates the user manipulation unit 110 to change a channel, adjust a volume, or change an image input mode. The video input mode may be a general input mode for inputting terrestrial or satellite broadcasting, or an external input mode for inputting an external video signal from the signal source source 200.

The broadcast receiver 120 tunes a channel that is pre-selected by the pre-international language signal of the controller 190 among the multi-channel broadcast signals received through the antenna, and demodulates the broadcast signal of the tuned channel.

The demultiplexer (DeMUX) 125 separates the demodulated broadcast signal into an audio signal and an image signal, and outputs the separated audio signal to the audio processor 152 and the image signal to the image processor 154.

The input unit 130 provides a communication interface for communicatively connecting with the signal source source 200. In particular, the sound input unit 132 of the input unit 130 inputs an external sound signal from the signal source source 200, and the image input unit 134 inputs an external image signal from the signal source source 200. The sound input unit 132 and the image input unit 134 may be implemented as a cable integrated into one, or separate terminals.

The switching unit 140 selects and connects one of the broadcast receiving unit 120 and the input unit 130 so that any one of the outputs of the broadcast receiving unit 120 and the input unit 130 is output to the signal processing unit 150. The selection operation of the switching unit 140 is according to the control of the controller 190 to be described later.

The signal processor 150 includes an audio processor 152 and an image processor 154 to process sound signals and video signals. The sound processor 152 processes the sound signal transmitted through the switching unit 140 into an audible signal, amplifies the sound signal to a set volume, and outputs the sound signal to the speaker 160. The speaker 160 outputs the amplified audio signal to the outside.

The image processor 154 may improve image quality characteristics (eg, white balance, brightness, contrast, etc.) of the image signal transmitted through the switching unit 140, and convert the image signal into a viewable signal through signal processing such as scaling. .

In addition, the image processor 154 includes a UI generator 155 that generates an error message and processes an OSD (On Screen Display). The UI generator 155 generates an error message including a resolution list under the control of the controller 190 when the signal processor 150 fails to process an external video signal input from the signal source source 200. . When the error message is generated, the image processor 154 processes the generated error message to be displayed and outputs it to the display unit 170.

FIG. 2 is a diagram illustrating an example of an error message generated by the UI generator of FIG. 1 and displayed on the display unit.

Referring to FIG. 2, the error message may include a message 'A cannot support the currently input video signal in the video display device 100, an optimum resolution B that can be supported, and a video processor 154. Resolution list C ', which represents the resolution range and the optimum vertical frequency.

Here, since the resolution range is displayed in the order most suitable for the display unit 170, the user can adjust the resolution of the external video signal of the signal source source 200 to output a video signal having a high resolution in the displayed error message have. In Fig. 2, the external video signal having the highest priority is a video signal transmitted at a resolution of (1360 x 768) at 60 Hz.

In addition, the optimum vertical frequency is a refresh rate or screen refresh rate of an image, and generally 60 Hz is set as a standard.

The display unit 170 is a display panel such as a liquid crystal display (LCD), a cathode ray tube (CRT), a plasma display panel (PDP), and displays an image signal output from the image processor 154 and an error message as shown in FIG. do.

The storage unit 180 stores various control programs required to implement the functions of the image display apparatus 100 such as a booting program, a system shutdown program, a program necessary for generating an error message as shown in FIG. 2, and data necessary for generating an error message. And a volatile memory for storing data processed by the controller 190 and the like.

The controller 190 executes the above-described present invention by using various programs stored in the storage 180. In particular, the controller 190 controls the operation of the image display apparatus 100 according to a user's manipulation command input through the user manipulation unit 110.

In detail, when the image input mode is set to an external input mode for receiving an external image signal from the signal source source 200 by the user manipulation unit 110, the controller 190 may control the signal source source through the input unit 130. The switching unit 140 is controlled to switch the external sound signal and the external image signal input from the 200 to the signal processor 150. The controller 190 controls the sound processor 152 and the image processor 154 to signal-process the external sound signal and the external image signal. Here, when the image processor 154 fails to process the external image signal, the controller 190 controls the UI generator 155 to generate an error message as shown in FIG. 2.

FIG. 3 is a flowchart for schematically describing the resolution display method of FIG. 1, and the description related to the external sound signal will be omitted by explaining the external image signal related to the present invention.

1 to 3, when the user operates the user manipulation unit 110 to select an external input mode (S310), the controller 190 selects the input unit 130 and is input from the signal source source 200. The switching unit 140 is controlled to provide an external image signal to the image processor 154 (S320).

When the external image signal is input to the image processor 154 through the switching unit 140, the controller 190 controls the image processor 154 to process the external image signal as a viewable signal (S330).

If the signal processing of the external video signal fails in the step S330, that is, if the image processing unit 154 does not process the video signal as a viewable signal (S340), the controller 190 in the storage unit 180 The UI generator 155 is controlled to generate an error message as shown in FIG. 2 using the stored data and the program (S350).

In addition, the controller 190 controls the display unit 170 to display the error message generated in operation S350 (S360).

On the other hand, if the image processing unit 154 successfully processes the external image signal in step S340, the controller 190 controls the display unit 170 to display the signal processed external image signal (S370).

Thus, the user can easily know the reason for the error, the optimum resolution and frequency information supported by the image display apparatus 100 as well as the processable resolution range. Then, the user can quickly set the resolution in the signal source source 200 so that the external image signal output from the signal source source 200 has the optimal resolution according to the displayed error message, and the signal source source 200 has the optimal resolution. If not supported, it may be set to a resolution having the next priority.

On the other hand, the present invention described above, but the TV as an image display device 100 as an example, the image display device 100 can be applied not only to the TV, but also to the monitor, projection TV, etc. provided in the PC, of course.

As described above, according to the image display apparatus and the resolution display method capable of displaying the resolution according to the present invention, a resolution including a message indicating that an error has occurred when an unsupported video signal is input and an optimal resolution supported by the device By displaying the range, that is, the type of resolution, the user can easily recognize the reason for the error and solve the error without multiple trials and errors.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications may be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (5)

An image processor which processes an image signal input from a signal source source into a viewable signal; A display unit which displays the processed video signal; A storage unit which stores a resolution range that can be processed by the image processor; And And a controller configured to control the image processor and the display unit to generate and display a resolution list indicating the stored resolution range when the image processor fails to process the image signal. Display. The method of claim 1, And the resolution list includes an optimal resolution supported by the display unit. The method according to claim 1 or 2, And the resolution list includes an optimum frequency supported by the image processor. Inputting a video signal from a signal source and processing the video signal into a viewable signal; Generating a resolution list indicating a resolution range that can be processed in the processing step if the video signal is not signal processed in the processing step; And displaying the generated resolution list. The method of claim 4, wherein And the resolution list includes an optimal resolution supported in the processing of the video signal as a viewable signal and an optimal frequency supported in the processing.

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