JP2011166282A - Television device and display method - Google Patents

Abstract

Provided is a technique for appropriately showing a function of a display device to a user in an exhibition demonstration of a television device.
A signal processing unit of a liquid crystal television includes a video signal processing unit and a signal content determination unit. The video signal processing unit 41 performs image adjustment processing and LED brightness control provided as general functions. For example, the video signal processing unit 41 finally displays the setting screen of the liquid crystal television 100 or the OSD screen to which the contents of the data broadcast are reflected or the number and time of the selected channel are given to the display output unit 50 as necessary. A video to be displayed. Further, the processing content (double speed processing, etc.) being executed in the demo mode is displayed.
[Selection] Figure 1

Description

  The present invention relates to a television apparatus and a display method, and more particularly to a television apparatus and a display method capable of performing display output in a demonstration mode.

  Recent LCD TVs are in a situation where it is essential to have high image quality and low power consumption as appealing points. There are a wide variety of product specifications equipped with technology that realizes such functions. And as a technology to promote the effect directly at the store, a demonstration mode (hereinafter simply referred to as “demo mode”) is implemented in the LCD TV, and by executing the demo mode, it is possible to Is trying to differentiate.

  Here, functions for improving image quality include the double speed function, backlight scan function (function to instantaneously erase the backlight to reduce the afterimage phenomenon), eco-mode function, film dejudder function (image blurring, etc.) Etc.) to prevent and display smoothly. In addition, there is a technique for adjusting output by providing an average value detection circuit and a frequency characteristic switching circuit in order to perform image processing suitable for an input signal (see Patent Document 1). By promoting over-the-counter demonstrations of these functions, the company promotes its products.

Japanese Patent Laid-Open No. 11-243497

  The above-mentioned functions for improving the image quality do not show the effect at the same time, and sometimes there is a trade-off state. For example, in the store viewing environment, there are many bright and colorful displays in the store where the TV is installed. Therefore, it is usually installed so that it is displayed in a sharp mode (for example, dynamic mode).

  By the way, as a recent store demonstration, the tendency to emphasize energy saving has been strengthened, and a real-time amount of electricity when a power meter (watt checker) is connected to a TV and viewing an actual video is displayed. Is increasing. However, the dynamic mode, which is a storefront setting, is in a state where the power consumption is increased in order to increase the luminance, and is not suitable for appealing the energy saving performance. Similarly, when the backlight scan is performed for the backlight scan, the moving image response performance is improved, but the normal luminance is reduced to about half. In order to improve this, processing such as increasing the current may be carried out, and the power consumption is further increased, so that energy saving cannot be appealed.

  Some users may be aware that such a demo mode is just a function of the product and is displayed under conditions different from the general listening environment. . Such a user often understands the operation of the television well, and can change the settings of the displayed products in various ways to grasp whether the desired performance is achieved. However, in reality, such users are very limited, and many users judge a product only by a storefront demonstration actually performed. Therefore, for example, even if it is installed in the store in the dynamic mode regardless of the type of the input signal, and the power consumption meter is connected in that state, it is a prospective purchaser even if it does not appeal to the original energy saving performance at all The user makes a determination based only on the storefront demo state. In other words, the user cannot experience the desired function, and in some cases, due to inappropriate recognition, the user cannot experience the inherent function, and the selection is narrowed.

  The technique disclosed in Patent Document 1 relates to a technique for determining whether the content of a video signal is a PC signal or any other signal, and is not necessarily related to a technique for image quality adjustment / change in a storefront demonstration, Another technique was required.

  In view of the above problems, an object of the present invention is to provide a technique for appropriately showing the performance of a display device to a user in an exhibition demonstration of a television device.

An apparatus according to the present invention is a television apparatus capable of displaying a demonstration mode, and includes a video discriminating unit that discriminates a type of a video signal to be displayed, and a video signal type discriminated by the video discriminating unit. Accordingly, processing content determining means for determining the processing content to be applied to the video when displayed on the display output means, and video processing for reflecting the processing content on the video for display on the display output means Means.
Further, the processing content determination means may display and output the default processing content in the demonstration mode and the processing content determined according to the type of the video signal in a comparable manner.
The video discriminating unit may discriminate a video genre as a video signal type.
The video discriminating means may discriminate the type of the input source as the video signal type.
The video discriminating unit may detect and discriminate the degree of change of video as the video signal type.
The method according to the present invention is a display method for determining the display mode of the demonstration mode in a television apparatus capable of displaying the demonstration mode, and a video discrimination step for discriminating the type of video signal to be displayed; A processing content determination step for determining processing content to be applied to the video when displaying on the display output means according to the type of the video signal determined by the video determination step, and for displaying on the display output means And a video processing step of reflecting the processing content on the video.

  ADVANTAGE OF THE INVENTION According to this invention, in the exhibition demonstration of a television apparatus, the technique which shows appropriately the performance of a display apparatus with respect to a user can be provided.

It is a functional block diagram which shows schematic structure of the liquid crystal television based on embodiment of this invention. It is a figure which shows the example of OSD display of demo mode based on embodiment of this invention. It is a figure which shows the content of the process according to a genre, image quality setting, etc. in execution of demo mode based on embodiment of this invention. It is a flowchart which shows procedures, such as a process according to a genre, image quality setting, etc. in execution of demo mode based on embodiment of this invention.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings. In the present embodiment, a liquid crystal television capable of display output in a demonstration mode in store display will be described.

  FIG. 1 is a functional block diagram showing a schematic configuration of the liquid crystal television 100 according to the present embodiment, and mainly shows processing related to video output. The liquid crystal television 100 discriminates the contents of the input signal that is currently input, and automatically implements the optimum demo mode according to the discrimination result to appropriately appeal various product specifications. is there. In particular, there is a fact that a demonstration that emphasizes the clarity is performed or a process that does not match the video is performed even though the user does not require the clarity. Therefore, in the present embodiment, various processes performed in the demo mode are changed according to the type of video. Further, a combination of several processes can be displayed, and the user can find a favorite video from among them.

  As illustrated, the liquid crystal television 100 includes a main control unit 10, a source unit 20, an AV-SW 30, a signal processing unit 40, and a display output unit 50.

  The main control unit 10 comprehensively controls each component of the liquid crystal television 100. The main control unit 10, the signal processing unit 40, and the like are realized by an LSI (Large Scale Integrated Circuit) such as a CPU (Central Processing Unit), a memory, and a program stored in the memory and executing each function.

  The source unit 20 is a circuit group that acquires content to be output, and includes a tuner 21, an external input unit 22, a PC input unit 23, and a media drive 24.

  The tuner 21 receives and decodes terrestrial digital broadcasting via an antenna, for example. More specifically, the tuner 21 selects a desired channel, performs demodulation processing and error correction processing, extracts a TS (transport stream) transmitted from the broadcasting station, and then multiplexes the TS. The TSs are separated according to the purpose, the video data and the audio data are decoded, and other data such as data broadcast data is output to the main control unit 10. The decoded video data and audio data are output to the signal processing unit 40 via the AV-SW 30.

  The external input unit 22 acquires desired content from an external device such as a DVD (Digital Versatile Disc) recorder, and outputs the acquired content to the signal processing unit 40 via the AV-SW 30.

  The PC input unit 23 includes a DVI (Digital Visual Interface) interface, and acquires PC video. The media drive 24 is a built-in drive, for example, a DVD drive or a memory card drive (reader). A video signal or the like reproduced by the media drive 24 is output to the signal processing unit 40 via the AV-SW 30.

  The AV-SW 30 connects the source selected from the source unit 20 to the signal processing unit 40. That is, any one of the tuner 21, the external input unit 22, the PC input unit 23, or the media drive 24 is selected as a source, and the selected source is output to the signal processing unit 40.

  The signal processing unit 40 includes a video signal processing unit 41 and a signal content determination unit 42. The video signal processing unit 41 performs image adjustment processing provided as a general function and luminance control of the backlight LED. The video signal processing unit 41 displays, for example, a setting screen of the liquid crystal television 100 or an OSD (On Screen Display) screen that reflects the contents of data broadcasting or gives the number and time of the selected channel as necessary. An image to be finally displayed on the output unit 50 is constructed. Further, in the present embodiment, the processing contents (double speed processing, etc.) being executed in the demonstration mode are displayed. Note that the OSD display mode in the demo mode will be described later with reference to FIG.

  When driving in the demo mode, the signal content determination unit 42 determines the type of signal that is the source of the video to be displayed, and determines image processing, image quality setting, and the like to be applied to the video. The type of signal and what kind of image processing and image quality setting are performed are recorded in a predetermined table which will be described later with reference to FIG. The table is recorded in a predetermined recording area of the signal content determination unit 42. The determination procedure and the like will be described in detail with reference to the flowchart of FIG.

  The display output unit 50 includes an LCD controller 51 including a drive driver and a display panel 52. The display panel 52 is, for example, a TFT active matrix liquid crystal display panel, and includes pixels and a backlight arranged in a matrix in which luminance data is set.

  2A to 2C show examples of OSD display in the demo mode. Here, three items of the brightness level, the contents of the double speed process, and the backlight scan are shown for the displayed display mode, and the specific contents of the display process and image quality setting. In addition, it is not the meaning limited to 3 items, You may display about other setting content and processes, such as a hue and contrast. FIG. 2A shows an example in which content with a genre of sports (motor sports) is displayed, which shows that the dynamic mode is applied. Then, it is shown that the brightness setting is “+5”, the double speed process is “4 × speed”, and the backlight scan is “ON (indicated by“ ◯ ”in FIG. 3 described later). FIG. 2B shows an example in which movie content is displayed as a genre, and shows that the cinema mode is applied. The brightness setting is “−2”, the double speed process is “double speed”, and the backlight scan is “ON”. FIG. 2C shows an example in which content with a genre of news is displayed, indicating that the eco mode is applied. Then, it is shown that the brightness setting is “−5”, the double speed process is “off” (indicated by “−” in FIG. 3 described later), and the backlight scan is “off”.

  FIG. 3 shows contents such as processing and image quality setting according to the genre during execution of the demo mode. Here, as a result of determining the content of the input signal, the genre of the content of the input signal is classified into five types. For example, if it is determined that the content of the input signal is a “sport” program, the display mode is “dynamic mode”, “brightness +5”, “double speed processing 4 × speed”, “backlight scan on”, “film dej The process of “Dar Off” is reflected in the video. If it is determined that the input signal is “PC input”, the display mode is “PC mode” and “brightness ± 0”, “double speed processing off”, “backlight scanning off”, “film dejada off” Is reflected in the video. Examples of the classification method include film detection, moving image detection, PC detection, and reference to genre information in digital broadcasting. A known technique can be used for these methods. The developer of the liquid crystal television 100 may set what kind of processing and image quality setting should be set in consideration of the function / effect to be appealed and the presumed listening environment.

  Next, processing for determining the contents of the input signal will be described based on the flowchart of FIG. First, the signal content determination unit 42 determines whether the display is currently in the demo mode or the normal operation processing mode at a predetermined timing (S10). If the normal operation processing mode is set (N in S10), the normal operation processing being executed is continued (S12).

  In the demo mode (Y in S10), the signal content determination unit 42 performs a process of determining the type of the input signal (S14) based on the determination criterion described above, and is set in advance according to the determination result. The image quality setting, image processing, and the like are reflected in the video to be displayed (S16). Next, the video signal processing unit 41 generates an image for OSD display of items such as image quality settings and image processing reflected in the video (S18), and synthesizes the synthesized video with the video to be output. It outputs to the display output part 50 (S20).

  The execution timing in the input signal type discrimination process (S14) may be always executed, but when the input source or channel is switched, a predetermined time interval is used to display the demo frequently. It is possible to avoid the mode switching.

  As described above, according to this embodiment, the double speed function, backlight scan function, eco mode function, film dejudger function, etc. that are installed as product specifications for high image quality are automatically switched according to the input signal contents, and a demonstration is performed. This makes it possible to always carry out optimal demonstrations.

  In other words, conventionally, since the contents of the input signal cannot be determined, it is impossible to carry out an optimal demonstration according to the signal. In the dynamic mode, which is generally set as a demo mode (storefront mode), it is not possible to appeal the energy-saving effect in terms of power consumption in order to perform a demo, or a backlight scan is performed for any input signal. For example, when a news program, PC input image, or movie material that is difficult to judge the effect of improving the video responsiveness is used, a backlight scan is performed, and a demonstration is simply performed with a dark image with low brightness. I had to do it.

  However, this embodiment uses a means for determining the content of the input signal (video signal) to determine whether the signal content is “news program”, “movie”, “sports program”, “PC input”, or the like. When the optimal function demonstration according to the input signal, which was impossible in the past, for example, “news program” or “PC input” is judged, the backlight scan and power consumption demonstration are not performed. , You can run a demo that says to display high-quality storefront in normal dynamic mode. Also, when the signal content determination unit 42 determines that the signal type is a “sport” program, it switches to a demonstration that implements the double speed function and the backlight scan function to appeal the improvement of the video response performance. Can do. Further, when the signal content determination unit 42 determines that the signal content is “movie”, the film dejudger function and the eco function are enabled to appeal the smoothness and low power consumption of the video. Is also possible.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. .

  In the present embodiment, the case where the storefront demonstration at the time of sale is performed in the same display mode has been described, but the present invention is not limited to this. For example, the area of the screen may be divided into a plurality of parts, and some settings may be displayed as a demo so that they can be compared. That is, the current setting contents are displayed in one of the divided areas, and several types of display modes are displayed as demo modes in the remaining areas. As a result, the user can easily determine whether there is a favorite display mode. Such a display may be executed in the setting of a normal display process other than the demonstration.

  In addition, during the store demonstration, a salesperson or the like may change various settings of the demo mode. For example, the salesperson may darken the brightness of the liquid crystal television 100 by one step or change the hue, and the conditions may not necessarily be recorded in the liquid crystal television 100 as a preset setting. In such a case, the code corresponding to the setting contents is displayed on the screen so that the user can easily perform the same setting after the sale, and the setting contents are reflected by inputting the code on the predetermined setting screen. You may do it.

10 main control unit 20 source unit 21 tuner 22 external input unit 23 PC input unit 24 media drive 30 AV-SW
40 signal processing unit 41 video signal processing unit 42 signal content determination unit 50 display output unit 51 LCD controller 52 display panel 100 liquid crystal television

Claims (6)

A television device capable of displaying a demonstration mode,
Video discriminating means for discriminating the type of video signal to be displayed;
Processing content determination means for determining processing content to be applied to the video to be displayed when displaying on the display output means according to the type of video signal determined by the video determination means;
Video processing means for reflecting the processing content on the video for display on display output means;
A television device comprising:   2. The processing content determination means displays and outputs the default processing content in the demonstration mode and the processing content determined according to the type of the video signal in a comparable manner. The television apparatus described in 1.   The television apparatus according to claim 1, wherein the video discriminating unit discriminates a genre of the video as a type of the video signal.   The television apparatus according to claim 1, wherein the video discriminating unit discriminates a type of an input source as a type of the video signal.   5. The television apparatus according to claim 1, wherein the video discriminating unit detects and discriminates the degree of change of the video as the video signal type. In a television apparatus capable of displaying a demonstration mode, a display method for determining a display mode of the demonstration mode,
A video discriminating step for discriminating the type of video signal to be displayed;
A processing content determination step for determining the processing content to be performed on the video when displaying on the display output means according to the type of the video signal determined by the video determination step;
A video processing step of reflecting the processing content on the video for display on the display output means;
A display method comprising:

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