JP4573806B2 - Video display device - Google Patents

Description

  The present invention relates to a video display device, and more particularly to a video display device that can be operated by a remote controller and can perform on-screen display on a built-in display device or an externally connected display device. .

  Television receivers (TV receivers) that receive and display broadcast programs, various recorders that receive and record broadcast programs and output video to external display devices, and various types that receive broadcast programs and output video to external display devices In general, a remote controller (remote controller) is attached to a video display device such as a tuner device so that remote control is possible.

  On the other hand, the video display device is equipped with an on-screen display function (OSD function), such as the current input mode and the number of the broadcast channel being received, as well as the volume, brightness, brightness, display mode, and other video. A setting screen for setting the display device itself, a menu-type setting screen, a TELETEXT (teletext) screen, an electronic program guide screen, and the like can be displayed on-screen. The electronic program guide includes an electronic program guide (EPG) that displays the program guide visually and easily in some cases using photographs, and an ESG (Electronic Service Guide) that simply displays program information using only text. is there.

  In order to enable various settings using the OSD, such as turning on / off the power of the video display device, switching channels, adjusting the volume, etc. with the remote control, operation buttons dedicated to various settings using the OSD are provided on the remote control. It is necessary to provide them or to use the operation buttons on the remote controller. For this reason, an increase in the number of operation buttons on the remote controller is inevitable, and buttons having similar shapes, colors, and arrangements must be provided.

  For example, so-called color buttons are mounted on a remote control in teletext compatible TV receivers in Europe and Asia and TV receivers compatible with digital tuners in Japan. In such a receiver, color button operation guidance is displayed on a channel information screen or the like. In many cases, the color of the power button is the same as one of the color buttons.

  The user confirms a button to be operated from these similar buttons and then actually presses the operation button, which requires time for confirmation or causes an erroneous operation.

Patent Document 1 discloses a display device in which a confirmation screen is displayed on-screen and a button is pressed twice in order to prevent erroneous setting of video mute.
Japanese Patent Laying-Open No. 2005-20725

  However, in a receiver that displays a color button operation guide, the color of the power button is often the same as one of the four color buttons, and the user mistakenly presses the power button to turn off the power. Such a situation occurs. In teletext broadcasting and digital broadcasting, once the power is turned off, it takes time to fetch new data, which is inconvenient for the viewer.

  Further, in the device described in Patent Document 1, when a video mute button is operated, a confirmation screen is always displayed and the operation can be performed after the confirmation, which makes the operation troublesome.

  The present invention has been made in view of the above-described circumstances, and makes a mistake when pressing a specific button on a remote control provided with a power button for turning on / off the power and a specific button similar thereto. It is an object of the present invention to provide an image display device that can prevent a power button from being pressed and turned off without requiring a troublesome operation.

  In order to achieve the above object, according to a first technical means of the present invention, there is provided a video display device operable by a remote controller, wherein the remote controller includes a power button for operating on / off of the power of the video display device. A specific button for performing another specific operation similar to the power button, and the video display device performs on-screen display means for on-screen display and while on-screen display is being performed by the on-screen display means. In addition, when the power button is pressed, the on-screen display means has a control means for on-screen display of a confirmation screen as to whether to turn off the power.

  According to a second technical means, in the first technical means, the specific button is a button similar in color and / or shape to the power button.

  According to a third technical means, in the first technical means, the specific button is a button similar in arrangement to the power button and the remote controller.

  According to a fourth technical means, in any one of the first to third technical means, only when the control means is displaying an operation screen operable with the specific button as an on-screen display, the power button The on-screen display of the confirmation screen when the button is pressed is controlled by the on-screen display means.

  A fifth technical means is any one of the first to fourth technical means, wherein the on-screen display means has means for displaying teletext, and the control means displays teletext as on-screen display. Only when the power button is pressed, the on-screen display means performs on-screen display of the confirmation screen when the power button is pressed.

  According to a sixth technical means, in the fifth technical means, the control means displays an on-screen display of the confirmation screen when the power button is pressed only before a predetermined time has elapsed since switching to the teletext display. Control is performed by the on-screen display means.

  A seventh technical means is any one of the first to fourth technical means, wherein the on-screen display means has means for displaying an electronic program guide, and the control means has an electronic program guide as an on-screen display. Only when the power button is displayed, control is performed such that the on-screen display means executes on-screen display of the confirmation screen when the power button is pressed.

  According to an eighth technical means, in the seventh technical means, the control means displays an on-screen display of the confirmation screen when the power button is pressed only before a predetermined time elapses after switching to display of the electronic program guide. The control is executed by the on-screen display means.

  According to a ninth technical means, in any one of the first to fourth technical means, the video display device includes an external input unit that connects to an external device and inputs a video from the external device, and the control unit The on-screen display means displays the on-screen display of the confirmation screen when the power button is pressed only when the input of the external device is displayed on the video display device regardless of the presence or absence of the on-screen display. It is characterized by performing control to be executed in step (b).

  According to a tenth technical means, in the ninth technical means, the control means is configured to on-screen the confirmation screen when the power button is pressed only before a predetermined time has elapsed since switching to the input display of the external device. The display is controlled by the on-screen display means.

  In an eleventh technical means according to any one of the first to tenth technical means, the video display device includes external output means for connecting to an external display device and outputting video to the external display device, The on-screen display means is a means for outputting an on-screen display image to the external display device by the external output means.

  According to the present invention, in a video display device, when a power button for operating on / off of a power supply and a remote control provided with a specific button similar thereto are pressed, the power button is erroneously pressed when the specific button is pressed. It is possible to prevent the power from being turned off without requiring a troublesome operation.

  The video display device according to the present invention is a device that can be operated by a remote controller, and has a remote control erroneous operation prevention function. As this video display device, not only a so-called television or monitor with a built-in display device but also a video output device that outputs video to an external display device is applicable. Hereinafter, description will be made assuming that the video display device according to the present invention is a device with a built-in display device typified by a television, and then an application example to a device (video output device) that displays video on an external display device will be described. .

  FIG. 1 is a block diagram showing a configuration example of a main body of a video display device according to an embodiment of the present invention, and FIG. 2 is an overview diagram showing a configuration example of a remote control attached to the video display device main body of FIG. In the figure, 1 is a main body of the video display device, and 2 is a remote controller (R / C).

  The video display device main body 1 receives a digital broadcast and / or an analog broadcast, selects a tuner 11, a video processing circuit 12 that performs various video processing on the video received by the tuner 11, and generates an OSD image to generate a video. An OSD generation / synthesis unit 13 that is synthesized by superimposing it on the video signal output from the processing circuit 12, and a video signal on which the OSD image is superimposed by the OSD generation / synthesis unit 13 (of course, there may be no OSD image). A display unit 14 such as a liquid crystal panel or a plasma display to display, a power supply circuit 15 including a power supply and power supply control circuit of the video display device main body 1, and an R / C light receiving unit 17 that receives a control signal emitted from the remote controller 2. And a microcomputer 16 for controlling them.

  The microcomputer 16 includes a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores control programs, fixed data, and the like, and a semiconductor memory such as a RAM (Random Access Memory) that is a working storage area of the CPU.

  Note that the display device built-in video display device body 1 is not limited to such a configuration, and any device that can display an OSD image on the display unit 14 and can be operated by the user with the R / C 2 will be described later. The main features of the present invention can be provided.

  In the present invention, it is assumed that the remote controller 2 has a power button 20 for operating on / off of the power of the video display device and a specific button for performing another specific operation similar to the power button 20. In the example of FIG. 2, the case where the power button 20 is red and the red button 25r is employed as the specific button will be described. As described above, the specific button is preferably a button having a color similar to that of the power button 20 because the effect of the present invention can be further obtained, but may be a button having a shape similar to that of the power button 20. It is more effective as an invention that the buttons have similar colors and shapes. Further, the specific button may be a button having a similar arrangement on the power button 20 and the remote controller 2. Here, the similarity of arrangement means that the positions are close.

  The remote controller 2 illustrated in FIG. 2 includes a power supply button 20, a channel selection button 21 for performing an operation for selecting a channel number, and a program guide for performing an operation for displaying an electronic program guide (EPG / ESG). A display button 22a, a teletext display button 22b for performing an operation for displaying teletext, a program information display button 22c for performing an operation for displaying program information for a currently received program, and various settings of the video display device main body 1 A menu screen display button 23 for performing an operation for displaying a menu screen for performing a menu operation, a movement / decision button 24 for performing a moving operation and a determination operation for the cursor position in the horizontal and vertical directions when setting the menu and the like, and a color A button 25 is provided.

  As the color button 25, in addition to the red button 25r described above, the green button 25g, the yellow button 25y, and the blue button 25b are simplified when a teletext screen, an EPG / ESG screen, a menu screen, or the like is displayed. It is provided for operation. The color button 25 displays an image of each button and its description on the teletext screen, the EPG / ESG screen, and the menu screen in order to present a response to the pressing operation of each button 25r, 25g, 25y, 25b to the user. It is good to display it.

  Therefore, in the video display device main body 1, the OSD generation / synthesis unit 13 generates and combines an operation screen (for example, a color button operation guide screen) that can be operated with an operation button including at least a specific button (for example, the red button 25r). On-screen display is possible on the display unit 14.

  As a main feature of the present invention, the control unit exemplified by the microcomputer 16 informs the R / C light receiving unit 17 that the power button 20 has been pressed during the OSD display of such an operation screen. When this is done, the OSD generator / combiner 13 is controlled to display an OSD confirmation screen as to whether or not to turn off the power. This control can be executed by a control program incorporated in the microcomputer 16 so as to be executable.

  As described above, for example, when the color button operation guide is displayed, when the power button 20 is pressed, the user confirms whether the OSD display is actually turned off to confirm that the color button 25 (especially red button) is displayed. Even if the power button 20 is pressed by mistake with the button 25r), the power-off can be avoided. When the power is actually turned off, it takes several seconds or more until the video is displayed again, and during that time, the TV cannot be viewed and may be overlooked, but this can also be avoided.

  As described above, according to the present invention, in a video display device, when a power button for operating on / off of a power supply and a remote control provided with a specific button similar thereto are provided, the power button is mistakenly pressed when the specific button is pressed. It is possible to prevent pressing down and turning off the power without requiring a troublesome operation.

  In addition, here, only when the operation screen that can be operated with the specific button exemplified by the red button 25r is displayed as the on-screen display, the microcomputer 16 performs OSD generation of the on-screen display of the confirmation screen when the power button 20 is pressed. Although the control to be executed by the combining unit 13 is performed, the present invention is not limited to this, and any on-screen display that cannot be operated with a specific button is displayed on the confirmation screen when the power button 20 is pressed. You may control so that it may be performed.

  FIG. 3 is a flowchart for explaining an example of the power-off confirmation process in the video display device of FIGS. 1 and 2, and FIG. 4 is a diagram showing an OSD display example on the screen of the video display device main body of FIG. FIG. 5 is a diagram illustrating an EPG display example on the screen of the video display apparatus main body of FIG. 1.

  First, the microcomputer 16 determines whether or not an OSD screen that can be operated with the color buttons 25 (including at least the red button 25r), for example, EPG / ESG or teletext, is currently being displayed on the OSD (step S1). The OSD generating / synthesizing unit 13 may generate and synthesize a teletext screen and an electronic program guide screen from a teletext received by broadcasting and program information acquired via broadcasting or a network.

  As an OSD screen that can be operated with the color buttons 25, for example, an event notification image 41 and a button information display transition image (color button operation guide display image) 42 are displayed together with the received video, as in the display screen 40 illustrated in FIG. You may keep it. This event notification image 41 is an image for notifying that an event assigned to the color of the color button 25 can be executed. As a response to this, the user operates one of the color buttons 25 to Can execute a predetermined event. As for the operation contents of each color button 25, the button information display transition image 42 may be separately displayed in the OSD by the user operating the movement / decision button 24.

  Similarly, an OSD screen that can be operated with the color button 25 includes an EPG display screen 50 illustrated in FIG. On the display screen 50, an EPG image 51 is displayed as an OSD display. The EPG image 51 includes a received video display area 52 and program information (including event information), a red button image 53r, a green button image 53g, a yellow button image 53y, a blue button image 53b, an upper and lower button image 54a, and a left and right button image. 54b and an image for operation guidance such as the determination button image 54c are included.

  Each button image is attached with information indicating the operation content of the operation button of the remote controller 2. For example, a notation indicating “page down” next to the red button image 53r, a notation indicating “page up” next to the green button image 53g, and a notation indicating “previous day” next to the yellow button image 53y are blue. There is a notation indicating “tomorrow” next to the button image 53b, and the displayed EPG image is page down, up, transition to the previous day image, and transition to the image for tomorrow, the red button 25r, green This indicates that the button 25g, the yellow button 25y, and the blue button 25b can be operated.

  Other usage examples of the color button 25 include the following. The digital broadcast content includes a game, and a color button 25 is used as an operation key for the game. In addition, there are several courts in which a game is being played during a tennis tournament, and the color button 25 is used as a switching button when the user can freely select a game (court) to be viewed.

  If it is determined in step S1 that such an OSD image is being displayed, the microcomputer 16 determines whether or not the power button 20 has been pressed (step S2). If it is not pressed in step S2, the process returns to step S1. If the button is pressed, there is a possibility that the red button 25r may be pressed incorrectly. Therefore, the OSD generation / synthesis unit 13 is controlled to display the power-off confirmation screen as an OSD display. (Step S3). As described above, the microcomputer 16 executes the on-screen display of the confirmation screen when the power button 20 is pressed on the OSD generation / synthesis unit 13 only when the electronic program guide or teletext is displayed as the on-screen display. To control.

  As the power-off confirmation screen, for example, characters such as “Can I power off? YES / NO” may be displayed. The fewer user response operations (step S4) to the power-off confirmation screen, the better. Therefore, for example, “Power off. Press the button again in case of cancellation” is displayed on the screen, and the cancel operation may be accepted from the user. Conversely, when the power is turned off. You may make it make a user operate again.

  If the operation in step S4 (there may be no operation) is an operation that does not permit the power-off, the microcomputer 16 controls the OSD generation / synthesis unit 13 to display a confirmation screen without turning off the power. It erases and returns to the original screen (normal screen) (step S5), and returns to step S1. On the other hand, if the operation in step S4 is a power-off permission operation, the microcomputer 16 controls the power circuit 15 to turn off the power (step S8).

  On the other hand, if NO in step S1, the process returns to step S1 while the pressing event of the power button 20 is not detected, and if detected, the microcomputer 16 presses the power button 20 after switching the input to a predetermined threshold (T (Step S7). If it is within T seconds, the process proceeds to step S3. If it exceeds T seconds, the power is turned off as it is (step S8). After the input is switched from analog TV to digital TV or from digital TV to external input, the process of step S7 is executed based on the determination that the power button 20 is rarely pressed (within T seconds). .

  As described above, when the video display device main body 1 is connected to an external device through an external input terminal and a cord or a wireless communication device or the like and has external input means for inputting video from the external device, the microcomputer 16 It is preferable to perform control so that the OSD generation / synthesis unit 13 executes on-screen display of a confirmation screen associated with pressing of the power button 20 only after a predetermined time has elapsed since switching to display of input from an external device. For example, when a digital tuner is connected to the video display device main body 1 and an input is selected for it, an OSD display such as “please press the red button” may be made, and such control is effective. . Further, regardless of whether or not the on-screen display is performed for a predetermined time, the microcomputer 16 displays the on-screen display of the confirmation screen when the power button 20 is pressed only when the input of the external device is displayed on the video display device body 1. Control that is executed by the OSD generation / synthesis unit 13 may be performed.

  Although not shown in FIG. 3, the microcomputer 16 displays an on-screen display of a confirmation screen when the power button 20 is pressed only before a predetermined time elapses after switching to teletext or electronic program guide display. You may make it perform the control which the production | generation / synthesis | combination part 13 performs.

  The determination in step S1 may be performed based on whether or not an image prompting the operation of the red button 25r is currently displayed in the OSD display. That is, when the power button 20 is pressed when there is no color button operation guidance screen, it is a normal time in which an erroneous operation is unlikely to occur, the confirmation process is not executed, the power is turned off, and an erroneous operation is likely to occur. When the screen is displayed, confirm that the power is turned off.

  Further, the OSD generating / synthesizing unit 13 displays a color button operation guidance screen as shown in FIGS. 4 and 5 when, for example, analog broadcast viewing and teletext mode is selected, and when the power button 20 is operated, the microcomputer 16 May control the OSD generation / synthesis unit 13 to execute warning (caution) display. On the other hand, since color buttons are used for most contents when viewing digital broadcasts, the microcomputer 16 controls the OSD generation / synthesis unit 13 when the power button 20 is operated regardless of whether the EPG / ESG is displayed or not. The warning display may always be performed.

  The video display device according to the present invention has been described on the assumption that the display device such as a display panel is built in, but this also applies to a projector or the like (device for video output). Is also applicable. Examples of such a video output device include various recorders that record a broadcast program and output the video to an external display device, and various tuner devices that receive the broadcast program and output a video to the external display device.

  Such a video output device includes an external output unit that is connected to an external display device via an external input terminal and a cord or a wireless communication device and outputs video to the external display device. Then, the OSD generation / synthesis unit 13 outputs an on-screen display image to the external display device by the external output unit. Even in such a video output device, the microcomputer 16 controls the OSD generation / synthesis unit 13 to output the warning display as described above to the external display device as needed, and displays the warning on the external output device. Can be performed.

It is a block diagram which shows the structural example of the main body of the video display apparatus which concerns on one Embodiment of this invention. FIG. 2 is an overview diagram illustrating a configuration example of a remote controller attached to the video display device main body of FIG. 1. FIG. 3 is a flowchart for explaining an example of a power-off confirmation process in the video display device of FIGS. 1 and 2. It is a figure which shows the example of OSD display in the screen of the video display apparatus main body of FIG. It is a figure which shows the example of EPG display in the screen of the video display apparatus main body of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Video display apparatus main body, 2 ... Remote control (R / C), 11 ... Tuner, 12 ... Video processing circuit, 13 ... OSD production | generation / synthesis | combination part, 14 ... Display part, 15 ... Power supply circuit, 16 ... Microcomputer, 17 ... R / C light receiving unit, 20 ... power button, 21 ... channel selection button, 22a ... program guide display button, 22b ... back program information display button, 22c ... program information display button, 23 ... menu screen display button, 24 ... move / OK button, 25 ... Color button, 25r ... Red button, 25g ... Green button, 25y ... Yellow button, 25b ... Blue button, 40, 50 ... Display screen, 41 ... Event notification image, 42 ... Button information display transition image, 51 ... EPG image, 52 ... Received video display area, 53r ... Red button image, 53g ... Green button image, 53y ... Yellow button image, 53b ... Blue button image, 54a ... Up Button image, 54b ... left and right button image, 54c ... determination button image.

Claims (11)

  In the video display device operable by a remote controller, the remote controller has a power button for operating on / off of the power of the video display device and a specific button for performing another specific operation similar to the power button. The video display device has an on-screen display means for on-screen display, and when the power button is pressed while the on-screen display means performs the on-screen display means, On the other hand, a video display device comprising control means for on-screen display of a confirmation screen as to whether or not to execute power off.   The video display device according to claim 1, wherein the specific button is a button similar in color and / or shape to the power button.   The video display device according to claim 1, wherein the specific button is a button that is similar in arrangement to the power button and the remote controller.   The control means causes the on-screen display means to execute on-screen display of the confirmation screen when the power button is pressed only when an operation screen operable with the specific button is displayed as on-screen display. 4. The video display device according to claim 1, wherein control is performed.   The on-screen display means has means for displaying teletext, and the control means displays on-screen display of the confirmation screen when the power button is pressed only when teletext is displayed as on-screen display. 5. The video display device according to claim 1, wherein control is performed by the on-screen display unit.   The control means performs control for causing the on-screen display means to execute on-screen display of the confirmation screen when the power button is pressed only before a predetermined time has elapsed since switching to teletext display. The video display device according to claim 5.   The on-screen display means includes means for displaying an electronic program guide, and the control means turns on the confirmation screen when the power button is pressed only when the electronic program guide is displayed as an on-screen display. The video display apparatus according to claim 1, wherein a screen display is controlled by the on-screen display unit.   The control means performs control to cause the on-screen display means to execute on-screen display of the confirmation screen when the power button is pressed only before a predetermined time has elapsed since switching to display of the electronic program guide. 8. The video display device according to claim 7, wherein   The video display device includes an external input unit that connects to an external device and inputs video from the external device, and the control unit uses the video display device to display the external device regardless of whether on-screen display is performed. 5. The control according to claim 1, wherein the on-screen display unit performs on-screen display of the confirmation screen when the power button is pressed only when an input is displayed. The video display device according to item.   The control means performs control to cause the on-screen display means to execute on-screen display of the confirmation screen when the power button is pressed only before a predetermined time has elapsed since switching to the input display of the external device. The video display device according to claim 9.   The video display device includes an external output unit that is connected to an external display device and outputs video to the external display device, and the on-screen display unit transmits an on-screen display image to the external display device by the external output unit. The video display device according to claim 1, wherein the video display device is a unit that outputs a video signal.

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