JPH11261918A - Image display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to confirm which video signal is received from which device based on a plurality of images by discriminating whether or not the video signal is received from an input/output terminal and outputting a plurality of video signals on a screen when the video signals are received and displaying additional information of the video image. SOLUTION: In this image display device, a conventional image is displayed on a screen, additional information (device name) connected to an external input terminal is displayed (27-31), the received image information is displayed (22-31) as slave images, and the user selects a desired image among slave images displayed as a list and the selected slave image is displayed as a master image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device having a plurality of external input terminals which can be connected to an external device and capable of displaying a multi-screen. The present invention relates to an image display device having the same.

[0002]

2. Description of the Related Art In recent years, peripheral devices such as VTRs, DVDs, BS tuners, CS tuners, games, etc. have been arranged around an image display device such as a large television receiver, and an audio / video device has been provided. Is to be done in each home.

In such a system, in many cases, an image display device is provided with a plurality of input / output terminals, and these external devices are connected. For example, input terminals are connected such as a VTR to the first input / output terminal, a BS tuner to the second input / output terminal, a DVD to the third input / output terminal, and a personal computer to the fifth input / output terminal.

However, when a plurality of external devices are connected in this way, it is difficult to remember which input / output terminal is connected to which external device. The user selects an external device to be displayed on the image display device,
The image information from the first to fifth input terminals is sequentially displayed on the image display device to make a determination, which requires a very useless operation.

As a technique for solving such a problem,
Japanese Patent Laying-Open No. 5-252462 discloses a technique in which the state of a connected device is displayed on a screen so that a user can confirm the state. FIG. 9 shows a drawing of the technique disclosed in Japanese Patent Application Laid-Open No. 5-252462. As shown in FIG.
Connection states 2 to 76 can be confirmed by arrows 90 to 92. According to FIG. 9, the user can visually confirm that the TV, the VIDEO 1 and the VIDEO 4 are connected.

[0006]

However, in the technique disclosed in Japanese Patent Application Laid-Open No. Hei 5-252462, it is possible to determine which external device is connected. There is a problem that it is not possible to determine whether or not the input has been made.

[0007] Japanese Patent Application Laid-Open No. H5-161084 discloses an apparatus for displaying a plurality of screens on the screen of an image display device. Thus, video signals from a plurality of external devices, that is, a plurality of input signals, are displayed. Although it is possible to display a plurality of screens based on the video signal input from the output terminal and check the video signal, the user sets up to display a plurality of screens on one screen, It is necessary to select and determine whether to display a video signal from an input terminal, and in a device having a large number of input / output terminals, the operation is inevitably complicated.

Therefore, the present invention is to solve the above-mentioned problem, and it is determined whether or not a video signal is input from an input / output terminal, and when a video signal is input, a plurality of the video are simultaneously displayed on a screen. At the same time as outputting, the additional information of the video is displayed together, so that the user can confirm which video signal is input from which device from the plurality of screens. By selecting a video signal, the screen of the video signal is output as a main screen.

[0009]

According to the first aspect of the present invention, a multi-screen control for displaying a first image as a parent image and simultaneously displaying one or more images as child images on the same screen. Means and a plurality of video input terminals for inputting a video signal output from an externally connected device, and in an image display device for outputting a video based on the input video signal, detecting whether or not the video input terminal is connected. Connection detecting means, a signal output detecting means for detecting a video signal from the video input terminal, and additional information storage means for storing additional information for each video input terminal, and displaying a normal video as a main screen. The additional information of the video input terminal connected by the connection detection means, and the video signal detected by the signal output detection means of the video signal as a child screen By displaying together with the screen, to solve the above problems.

According to the second aspect of the present invention, the additional information of the video input terminal connected by the connection detecting means is displayed when the power of the image display device is turned on and based on an external input confirmation instruction, When the video signal is detected by the signal output detecting means, the above-mentioned problem is solved by outputting the video signal together with the additional information as a child screen.

According to the third aspect of the present invention, the selecting means for selecting one of the displayed sub-screens, the video signal selected by the selecting means is displayed as a parent screen, and By clearing the display of the sub screen,
Solution to the Problems

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a functional block diagram illustrating a schematic configuration of a video signal processing portion of a television receiver according to an embodiment of the present invention. In FIG. 1, 1, 2, 3, 4, and 5 are input / output terminals for connecting external AV devices, 6 is a connection detection unit that detects the presence or absence of a connected device at input / output terminals 1, 2, 3, 4, and 5. 7 is input / output terminals 1, 2,
A signal detection unit for detecting the presence or absence of a video signal output from a device connected to 3, 4, or 5; a video signal 8 for processing the video signal in the input signal as a video input signal of a display device (not shown) A processing unit 9 is a synthesizing unit for capturing a character output from a character unit 12 for generating a multi-screen frame, a connected device name, and a channel name into a video signal, and 10 is a multi-screen, a main screen, and a multi-child screen for input video signals. A multi-screen processing unit 11 for detecting a synchronizing signal serving as a display reference of an input video signal to display a multi-screen or character display at a predetermined position on a monitor;
A synchronization detecting unit 13 for outputting a synchronizing signal to the character unit 12 or the character unit 12 displays a multi-sub screen on a monitor for a fixed time, moves a sub screen, or switches a sub screen to a main screen according to an instruction from the CPU 16. A multi-screen control unit for controlling the same multi-screen, 14 is a remote control receiving unit, 15 is a code analyzing unit for decoding instructions from the remote control, and 16 is a CPU for controlling the entire system of the television receiver.

FIGS. 2 to 5 are monitor screen views showing a function for confirming the connection state of externally connected devices (hereinafter, plug check) when the power of the television receiver is turned on.
Is a main screen display area of the monitor screen, 21 is a channel display of the main screen image, 22, 23, 24, 25, and 26 are multi-sub screen image areas having display frames, 27, 28, 29, and 3
Numerals 0 and 31 are multi child screen additional information display areas.

Hereinafter, a plug check function which is a characteristic function of the present invention will be described with reference to FIGS. The remote control receiving unit 14 receives a power-on signal from a remote control transmitter (not shown), and outputs the signal
The instruction of N is given to the CPU 16.

The CPU 16 has input / output terminals 1, 2, 3, 4,
Check the connection status of 5 and the presence / absence of output of the video signal signal, perform character output control and multi-screen control based on the result, and display the channel 1 video received by the tuner 1 in the main screen display area on the monitor. In addition to the display with [1], the connected device name and the input video are displayed in the lower right corner of the monitor screen in order from the input / output terminal 1 as the terminal connection state as a multi child screen.

FIG. 2 shows a case where a CS tuner is connected to the input / output terminal 1 and a CS broadcast is being received. In the additional information display area 27, “1-CS” is displayed, and Indicates a CS broadcast video.

FIG. 3 shows a case where a VTR is connected to the input / output terminal 2 but the VTR power is off (that is, no video signal is output from the VTR). Is not displayed in the small-screen video area 23 only.

As described above, all connection states of the input / output terminals 1 to 5 are checked, and the check results are displayed as shown in FIG.

The user checks the screen shown in FIG. 4 to confirm that “the CS tuner is connected to the input / output terminal 1 and the CS broadcast is being received”, and “the VTR is connected to the input / output terminal 2”. But no video input ",
"DVD is connected to input / output terminal 3 and is outputting", "No input / output terminal 4 is connected", "PC is connected to input / output terminal 5 but no output" Plug check can be done immediately.

Here, additional information such as "CS" and "VTR" is registered and stored in advance when the user connects an external device to the input / output terminal. Since this additional information can be freely set, the additional information may be “VTR1”, “VTR2”, or the like. Alternatively, a device model number such as “VT200R” may be stored as the additional information.

This plug check function is performed in a normal state, for example, when the power is turned on last time, for example, about 10 seconds after the power of the television receiver is turned on, as shown in FIG.
The receiving state of the channel 1 received by the tuner 1 which is the same channel as the FF is set, and the processing ends.

In the above, an example has been described in which the plug check function is activated when the power of the television receiver is turned on. However, the plug check function can also be activated by pressing the plug check button of the remote control while watching the television. You may comprise. In the above example, as a small screen display method at the time of plug check, a place without connection is not displayed, but "all display of input / output terminals regardless of presence / absence of connection", "display only a device having an output signal" , "The presence or absence of an output signal is divided into blocks and displayed" or the like can be changed as appropriate.

Next, the operation of switching a desired multi-sub-screen image to a main screen area when displaying a multi-sub-screen image by the plug check function will be described with reference to FIGS. 1, 4, 6 and 8.

While the plug check screen shown in FIG. 4 is displayed, for example, by pressing “3” of a ten key button on a remote controller,
The signal received by the remote control receiving unit 14 is
The instruction of “selection of input / output terminal 3” is output from CPU 1
6 given.

The CPU 16 issues a "selection of input / output terminal 3" instruction to the multi-screen control unit 13, and the sub-screen image area 24
To be displayed on the main screen area 20.

FIGS. 6 and 7 are views showing the state in which the child screen video area 24 is moving toward the center of the parent screen area 20 under the control of the multi-screen control unit 13. FIG. Main screen area 2
In the state in which the multi-screen image is moved to the center area of the sub screen image area 24 as shown in FIG. Ends. As described above, the state of the connected device can be easily confirmed by the plug check using the multi-screen, and the output video from the externally connected device can be easily switched as the main screen.

[0027]

According to the first aspect of the present invention, a normal received image is displayed on the main screen, and information on the device connected to the external input terminal, for example, the name of the connected device is displayed on the sub-screen. When the video signal is output from the device, the connection state of the external device and the input video can be easily checked in order to display the video signal.

According to the second aspect of the present invention, it is possible to automatically obtain information on an externally connected device when the power is turned on, and to output information on the externally connected device as needed. Can be obtained.

According to the third aspect of the present invention, in a state where the input video from the external device and the additional information (such as the external device name) of the external device are displayed in a list, the user selects one of them. By doing so, the video is displayed as a parent screen, so that the user can confirm and select the external device name and the image, so that the desired image can be surely and easily selected.

[Brief description of the drawings]

FIG. 1 is a functional block diagram illustrating a schematic configuration of a television receiver according to an embodiment of the present invention.

FIG. 2 is a diagram showing a screen display example of a plug check operation according to an embodiment of the present invention.

FIG. 3 is a diagram showing a screen display example of a plug check operation according to an embodiment of the present invention.

FIG. 4 is a diagram showing a screen display example of a plug check operation according to the embodiment of the present invention.

FIG. 5 is a diagram showing a screen display example of a plug check operation according to the embodiment of the present invention.

FIG. 6 is a diagram illustrating a screen display example of a screen switching operation according to an embodiment of the present invention.

FIG. 7 is a diagram illustrating a screen display example of a screen switching operation according to an embodiment of the present invention.

FIG. 8 is a diagram illustrating a screen display example of a screen switching operation according to an embodiment of the present invention.

FIG. 9 is a diagram showing an example of a screen display according to the related art.

[Explanation of symbols]

 1-5 input / output terminals 6 connection detection section 7 signal detection section 8 video processing section 9 synthesis section 10 multi-screen processing section 11 synchronization detection section 12 character generation section 13 multi-screen control section 14 remote control reception section 15 code analysis section 16 CPU 20 Main screen area 21 Channel display 22-26 Child screen display area 27-31 Additional information display

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Futami Sawamura 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Satoshi Nakamura 22-22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka In the company

Claims (3)

[Claims] 1. A multi-screen control means for displaying a first image as a parent image and simultaneously displaying one or more images as child images on the same screen, and inputting a video signal output from an externally connected device. A plurality of video input terminals, based on the input video signal,
In an image display device that performs video output, a connection detection unit that detects whether or not the video input terminal is connected, a signal output detection unit that detects a video signal from the video input terminal, and additional information for each video input terminal. Additional information storage means for storing, a normal video is displayed as a parent screen, additional information of a video input terminal connected by the connection detection means, and a video signal is detected by the signal output detection means An image display device, wherein a video signal is displayed as a child screen together with the parent screen. 2. An additional information of a video input terminal connected by the connection detecting means is displayed when the power of the image display device is turned on and based on an external input confirmation instruction, and a video signal is output by the signal output detecting means. 2. The image display device according to claim 1, wherein when detected, the video signal is output together with the additional information as a child screen. 3. A selecting means for selecting one of the displayed sub-screens, and displaying the video signal selected by the selecting means as a main screen and erasing the display of the sub-screen. 3. The image display device according to claim 1, wherein: