JP2006101089A - Display device and television - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of displaying a channel selection screen without using a remote controller dedicated to the display device. <P>SOLUTION: The display device is provided with a display unit 11, and a control unit (a control unit 15 and signal processing unit 16, a timer 17 and a light-receiving unit 18) for causing the display unit 11 to display a television video image Pt corresponding to any one of a plurality of channels in response to a received infrared signal Si (channel selection operating signal). The control unit causes the display unit 11 to display a channel selection screen for displaying each video image corresponding to at least part of channels among a plurality of channels on a multi-screen, when receiving the infrared signal over a previously defined first predetermined time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display device in which an image corresponding to any one of a plurality of channels is displayed on a display unit, and a television provided with the display device.

As this type of television, a multi-screen display television receiver (hereinafter also referred to as “television receiver”) is disclosed in Japanese Patent Laid-Open No. 10-145699. In this case, the television receiver is configured so that it can be remotely operated by an attached remote controller, and the control unit controls a tuner according to the remote control signal to select a predetermined channel so that a television broadcast image is displayed. Display on the picture tube. When the multi-button on the remote control is operated, the control unit displays a main screen that displays video corresponding to any channel and a plurality of still images for channel selection (images corresponding to each channel). The sub-screen is displayed on the picture tube (multi-screen display mode). In this case, when any channel is selected by a predetermined button operation, the control unit controls the tuner to receive the selected channel, and an image corresponding to the channel is input to the picture tube. Display full screen.
JP-A-10-145699 (page 4-8, FIG. 1-6)

  However, the conventional television receiver has the following problems. That is, in this television receiver (television), when the multi button of the remote controller is operated, the control unit displays the main screen and the sub screen on the picture tube in the multi-screen display mode. On the other hand, a remote control dedicated to AV equipment attached to recent AV equipment (such as a video deck and a DVD player) is configured to be capable of remote operation of a television as well as remote control of the equipment. There is also a general-purpose remote control that enables remote operation of a desired device from a plurality of types of TVs and AV devices that have different manufacturers and production times by setting a TV or AV device to be remotely operated. To do. However, the above-mentioned remote control dedicated to AV equipment or general-purpose remote control is not provided with a multi-button peculiar to the remote control attached to the conventional television receiver. For this reason, the conventional television receiver has a problem in that a sub-screen (channel selection screen) cannot be displayed on the picture tube by operating a remote control dedicated to AV equipment or a general-purpose remote control.

  The present invention has been made in view of such problems, and a main object of the present invention is to provide a display device and a television that can display a channel selection screen without using a remote controller dedicated to the display device.

  In order to achieve the above object, a display device according to the present invention includes a display unit and a control unit that causes the display unit to display an image corresponding to any one of a plurality of channels according to the received channel selection operation signal. Each of the video images corresponding to at least some of the plurality of channels when receiving the channel selection operation signal for a first predetermined time defined in advance. Is displayed on the display section.

  In the display device and the television equipped with the display device, when the channel selection operation signal is received for a first predetermined time specified in advance, the control unit sets the channel to at least some of the plurality of channels. A channel selection screen for displaying each corresponding video on a multi-screen is displayed on the display unit. Therefore, according to the display device and the television, for example, various other remote controllers (dedicated for switching operation to the multi-screen display mode) different from the remote control dedicated to the display device or television such as a remote control dedicated to AV equipment and a general-purpose remote controller. A channel selection screen can be displayed on the display unit using a remote controller that does not include a button. As a result, it is possible to easily select a channel by confirming what kind of broadcast is being performed on each channel using various remote controllers.

  In the display device according to the present invention, in the display device described above, a channel designation button associated with each channel, an up button for sequentially switching each channel in ascending order, and each channel sequentially switching in descending order. The control unit displays the channel selection screen when receiving the channel selection operation signal output in response to the operation of one of the channel selection operation buttons of the down button for the first predetermined time. Display on the display.

  In this display device and a television equipped with the display device, a channel selection operation signal output in response to an operation of any one of the channel selection button, the up button, and the down button is transmitted over a first predetermined time. The control unit displays the channel selection screen on the display unit. Therefore, according to the display device and the television, the channel selection screen can be displayed on the display unit by operating the buttons for channel selection. As a result, it is possible to easily select a channel by displaying a channel selection screen by a button operation without a sense of incongruity and confirming what kind of broadcast is being performed on each channel.

  Furthermore, in the display device according to the present invention, when the channel selection operation signal is received for the first predetermined time in the display device, the control unit includes the channel selection screen and the channel selection screen. A main video screen for displaying the video corresponding to any one of the channels is displayed side by side on the display unit in an area wider than each video in the station screen.

  In the display device and the television provided with the display device, when the channel selection operation signal is received for the first predetermined time, the control unit displays the channel selection screen and the main video screen side by side on the display unit. . Therefore, according to the display device and the television, the channel selection operation can be performed while viewing the main video screen displayed on the display unit along with the channel selection screen.

  Further, in the display device according to the present invention, when the channel selection operation signal specifying any channel is received in the state where the channel selection screen is displayed on the display unit in the display device, The control unit causes the display unit to display the video corresponding to the designated channel on the full screen.

  In the display device and the television provided with the display device, the channel specified by the control unit when receiving the channel selection operation signal specifying any channel in a state where the channel selection screen is displayed on the display unit. The video corresponding to is displayed in full screen on the display. Therefore, according to this display device and television, for example, various remote controllers (for example, switching from a tuning screen to a full screen display) that are different from a display device such as a remote control dedicated to AV equipment or a general-purpose remote control or a remote control dedicated to a television. The video corresponding to the desired channel can be displayed on the full screen on the display unit using a remote controller that does not have a dedicated button for performing the above operation.

  Furthermore, the display device according to the present invention is defined in advance in a state in which any one of the images in the channel selection screen displayed on the display unit is selected in the display device. When the second predetermined time has elapsed, the control unit causes the display unit to display a video corresponding to the selected video channel on the full screen.

  In the display device and the television provided with the display device, a second predetermined time specified in advance in a state where any one of the images in the channel selection screen displayed on the display unit is selected. When the time has elapsed, the control unit causes the display unit to display a full screen image corresponding to the selected video channel. Therefore, according to this display device and television, for example, various remote controllers (for example, switching from a tuning screen to a full screen display) that are different from a display device such as a remote control dedicated to AV equipment or a general-purpose remote control or a remote control dedicated to a television. The video corresponding to the desired channel can be displayed on the full screen on the display unit using a remote controller that does not have a dedicated button for performing the above operation. In addition, a desired channel can be selected using various remote controllers that do not have a channel designation button, and an image can be displayed on a full screen on the display unit.

  The television according to the present invention includes the display device and a signal acquisition unit that acquires a broadcast signal for causing the display unit to display the video corresponding to each channel. In the television according to the present invention, the signal acquisition unit includes a plurality of tuners that receive broadcast waves and extract the broadcast signals.

  According to this television, since the signal acquisition unit includes a plurality of tuners, it is possible to sufficiently shorten the extraction time of the broadcast signal for displaying each video on the channel selection screen. Time can be shortened sufficiently.

  Hereinafter, the best mode of a display device and a television according to the present invention will be described with reference to the accompanying drawings. A television 1 shown in FIG. 1 is a rear projection television as an example, and includes a main body 2 and a remote controller 3. As will be described later, this television 1 has an effect peculiar to the present application when remotely controlled by a remote controller different from the dedicated remote controller 3 (for example, a remote controller 3x dedicated to AV equipment). A description of the remote controller 3 is omitted. On the other hand, the main body unit 2 includes a display unit 11, a video composition unit 12, a video processing unit 13, a tuner 14, a control unit 15, a signal processing unit 16, a timer 17, and a light receiving unit 18. In this case, the display unit 11, the video composition unit 12, the video processing unit 13, the control unit 15, the signal processing unit 16, the timer 17 and the light receiving unit 18 constitute a display device according to the present invention. In addition, although the television 1 is actually provided with the audio | voice output part, in order to make an understanding about this invention easy, the illustration and description are abbreviate | omitted. Further, as an example, the television 1 is configured so that television images Pt1 to Pt12 (see FIG. 2) corresponding to 12 channels from channels 1 to 12 can be displayed on the display unit 11 (screen panel 22). ing. Note that FIG. 2 illustrates a state in which a television image Pt1 corresponding to channel 1 is displayed. Hereinafter, when the television images Pt1 to Pt12 are not distinguished, they are also referred to as “television images Pt”.

  As shown in FIG. 1, the display unit 11 includes an optical engine 21 and a screen panel 22. The optical engine 21 is disposed inside the main body unit 2 and projects the projection light L modulated based on the display signal Se output from the video composition unit 12 from the back side of the screen panel 22. Specifically, the optical engine 21 includes, for example, a light source, a light modulation element (for example, a DMD (Digital Micro Mirror Device) or a liquid crystal light valve) that modulates light from the light source into the projection light L, and the projection light L. And a projection lens (none of which is shown). In this television 1, actually, the projection light L from the optical engine 21 is reflected by the reflection mirror and projected onto the screen panel 22. However, in order to facilitate understanding of the present invention, the illustration and Description is omitted. The screen panel 22 receives the projection light L projected from the optical engine 21 and displays various images.

  Under the control of the control unit 15, the video composition unit 12 displays the television video Pt1 on the screen panel 22 on the entire screen (hereinafter referred to as “this”) as shown in FIG. 2 based on the video data Dp output from the video processing unit 13. A display signal Se for causing the display mode to be also referred to as “full screen display mode” is generated and output to the optical engine 21. Further, the video composition unit 12 displays a channel selection screen Ps1 (see FIG. 5) on the screen panel 22 under the control of the control unit 15 (hereinafter, this display mode is also referred to as “multi-screen display mode”). A signal Se is generated and output to the optical engine 21. In this case, the channel selection screen Ps1 is an example of the channel selection screen in the present invention. As shown in FIG. 5, the channel 1 is included in each area obtained by dividing the display area of the display unit 11 (screen panel 22) into 12 areas. The video (still image) corresponding to each channel of ˜12 is displayed. In addition, a cursor C for selecting a desired video (channel) from videos corresponding to each channel is displayed on the channel selection screen Ps1.

  The video processing unit 13 includes, for example, an IF circuit, a video detection circuit, and an A / D conversion unit (all not shown). In this case, as shown in FIG. 1, the video processing unit 13 extracts a video signal from the broadcast signal Sb output from the tuner 14 according to the control of the control unit 15, and outputs video data Dp based on the video signal as video. The data is output to the combining unit 12. The tuner 14 constitutes a signal acquisition unit in the present invention, and extracts (acquires) a broadcast signal Sb of a selected channel from a broadcast wave received by an antenna not shown in accordance with the control of the control unit 15 to obtain a video processing unit. 13 is output. The control unit 15 controls the display unit 11, the video composition unit 12, the video processing unit 13, and the tuner 14. In addition, the control unit 15 switches and displays either the television image Pt or the channel selection screen Ps1 on the display unit 11 in accordance with the control signal Ss from the signal processing unit 16.

  The signal processing unit 16 constitutes a control unit in the present invention in combination with the control unit 15, the timer 17, and the light receiving unit 18, and controls the control signal Ss based on the operation signal So from the light receiving unit 18 and information from the timer 17. Is output to the control unit 15. The timer 17 measures an elapsed time after the operation signal So starts to be output from the light receiving unit 18. The light receiving unit 18 receives an infrared signal Si output from the remote control 3 dedicated to the television 1 or the remote control 3x attached to the AV device, photoelectrically converts the infrared signal Si, and outputs an operation signal So.

  On the other hand, the remote controller 3x shown in FIG. 2 is a remote operation device attached to an AV device such as a video deck as an example, and is configured by arranging various operation buttons that can remotely control the AV device. In addition, the remote controller 3x is configured to be capable of remote operation with respect to the television 1 or the like (external device with respect to the AV device). The remote control 3x includes a power button 31, channel buttons 32A to 32L (hereinafter also referred to as “channel button 32” when not distinguished), cursor buttons 33A to 33D (hereinafter also referred to as “cursor button 33” when not distinguished) and determination. Various operation buttons such as buttons 34 are arranged. The remote controller 3x converts an operation signal corresponding to each operation button into an infrared signal Si and outputs the operation signal when each operation button is operated. In this case, the channel button 32 corresponds to the channel designation button in the present invention. The cursor buttons 33A and 33B function as channel selection operation buttons when the television 1 is remotely operated. The cursor button 33A corresponds to the up button in the present invention, and the cursor button 33B corresponds to the down button in the present invention. To do. Further, the cursor buttons 33C and 33D function as volume selection buttons when the television 1 is remotely operated.

  Next, the overall operation of the television 1 will be described with reference to the drawings. In the television 1, for example, when the power button 31 of the remote controller 3x is operated, power is supplied to the optical engine 21 of the display unit 11, and the light source emits light. Further, the control unit 15 controls the tuner 14 to extract the broadcast signal Sb of the channel (for example, channel 1) that was selected when the power was turned off immediately before. Next, the video processing unit 13 generates video data Dp based on the broadcast signal Sb under the control of the control unit 15 and outputs the video data Dp to the video synthesis unit 12. Subsequently, the video composition unit 12 generates a display signal Se based on the video data Dp and outputs the display signal Se to the optical engine 21 of the display unit 11. In response to this, the optical engine 21 modulates the light from the light source into the projection light L based on the display signal Se and projects it onto the screen panel 22. As a result, as shown in FIG. 2, the television image Pt1 broadcast on channel 1 is displayed on the screen panel 22 in the full screen display mode. In each drawing referred to in this specification, for example, the television image Pt1 of channel 1 is represented by the character string “Ch1”. However, in reality, the image broadcast on channel 1 is displayed on the screen panel 22. Is done.

  Next, for example, when the cursor button 33A (up button for channel selection operation) on the remote controller 3x is operated, the remote controller 3x outputs an infrared signal Si corresponding to the operation of the cursor button 33A. At this time, the light receiving unit 18 receives the infrared signal Si from the remote controller 3 x and outputs an operation signal So to the signal processing unit 16. Further, the signal processing unit 16 determines that a channel selection operation for switching to the next channel in descending order is performed based on the output operation signal So, and outputs a control signal Ss indicating that to the control unit 15. In response to this, the control unit 15 controls the tuner 14 so that the channel of the television image Pt displayed on the screen panel 22 before the output of the control signal Ss (before the operation of the cursor button 33A) (in this example, The broadcast signal Sb of the channel next to channel 1) (channel 2 in this example) is extracted. Next, the video processing unit 13 generates video data Dp based on the broadcast signal Sb, and the video synthesis unit 12 generates a display signal Se based on the video data Dp and outputs it to the optical engine 21 of the display unit 11. As a result, as shown in FIG. 3, the television image Pt2 broadcast on channel 2 is displayed on the screen panel 22 in the full screen display mode.

  On the other hand, when selecting a channel after confirming what kind of broadcast is being performed on each channel, for example, the cursor button 33A of the remote control 3x is pressed for about 3 seconds (an example of “first predetermined time” in the present invention). Continue (hold down the cursor button 33A). In this case, immediately after the operation of the cursor button 33A is started, the signal processing unit 16 controls the timer 17 to measure the elapsed time after the operation signal So is started to be output from the light receiving unit 18, and the control unit 15, the control unit 15 controls the tuner 14, and the channel of the television video Pt displayed on the screen panel 22 before the control signal Ss is output (before the operation of the cursor button 33 A is started) (this) In the example, the broadcast signal Sb of the channel next to channel 2) (in this example, channel 3) is extracted. Next, the video processing unit 13 generates video data Dp based on the broadcast signal Sb, and the video synthesis unit 12 generates a display signal Se based on the video data Dp and outputs it to the optical engine 21 of the display unit 11. Thereby, as shown in FIG. 4, the television image Pt3 broadcast on the channel 3 is displayed on the screen panel 22 in the full screen display mode. Further, when it is determined that 3 seconds have elapsed since the start of the operation of the cursor button 33A based on information from the timer 17 (when the infrared signal Si accompanying the operation of the cursor button 33A is received over 3 seconds), the signal The processing unit 16 determines that an operation for displaying the channel selection screen Ps1 has been performed, and outputs a control signal Ss indicating that to the control unit 15.

  In response to this, the control unit 15 controls the tuner 14 to sequentially extract the broadcast signals Sb of the respective channels at predetermined time intervals. The video processing unit 13 generates video data Dp for displaying the channel selection screen Ps1 based on each broadcast signal Sb output from the tuner 14 under the control of the control unit 15, and the video synthesis unit 12 A display signal Se is generated based on the video data Dp and output to the optical engine 21 of the display unit 11. As a result, as shown in FIG. 5, a channel selection screen Ps1 that displays a list of videos broadcast on each channel in the multi-screen display mode is displayed on the screen panel 22. At this time, the cursor C for selecting one of the 12 channels is next to the channel (channel 3 in this example) displayed on the screen panel 22 before the channel selection screen Ps1 is displayed. The video corresponding to the channel (channel 4 in this example) is displayed in a selected state. In the television 1, as described above, not only when the cursor button 33A is operated for 3 seconds or more, but any one of the cursor button 33B and the channel button 32 is continuously operated for 3 seconds or more. The signal processing unit 16 determines that the operation for displaying the channel selection screen Ps1 has been performed, and outputs a control signal Ss indicating that to the control unit 15. As a result, as shown in FIG. 5, a channel selection screen Ps1 that displays a list of videos broadcast on each channel in the multi-screen display mode is displayed on the screen panel 22.

  At this time, for example, when channel 7 is selected, for example, the channel button 32G (channel designation button associated with channel 7) is operated. At this time, the infrared signal Si corresponding to the operation of the channel button 32G from the remote controller 3x (the channel selection operation signal for instructing that the channel 7 has been selected: “the channel selection operation for designating any channel” in the present invention. An example of “signal” is output, and the light receiving unit 18 of the television 1 receives the infrared signal Si from the remote control 3 x and outputs the operation signal So to the signal processing unit 16. Further, the signal processing unit 16 determines that the channel 7 has been selected and outputs a control signal Ss indicating that to the control unit 15. In response to this, the control unit 15 controls the tuner 14 to extract the broadcast signal Sb of the channel 7. Next, the video processing unit 13 generates video data Dp based on the broadcast signal Sb, and the video synthesis unit 12 generates a display signal Se based on the video data Dp and outputs it to the optical engine 21 of the display unit 11. . Thereby, as shown in FIG. 6, the television image Pt7 broadcast on the channel 7 is displayed on the screen panel 22 in the full screen display mode.

  On the other hand, the channel 7 can be selected by operating the cursor button 33 while the channel selection screen Ps1 is being displayed on the screen panel 22. Specifically, first, in a state where the channel selection screen Ps1 shown in FIG. 5 is displayed (a state in which an image corresponding to channel 4 is selected by the cursor C), for example, three operations on the cursor button 33A Alternatively, nine operations are performed on the cursor button 33B. At this time, the cursor C is moved in the channel selection screen Ps1 in accordance with the infrared signal Si output from the remote controller 3x, and an image corresponding to the channel 7 is selected by the cursor C as shown in FIG. The selected channel selection screen Ps1 is displayed on the screen panel 22. In this state, when the infrared signal Si is not output from the remote controller 3x, for example, when 5 seconds have elapsed (when the “second predetermined time” in the present invention has elapsed), the signal processing unit 16 selects the channel 7 to be selected. A control signal Ss indicating that it is determined is output to the control unit 15. In addition, the signal processing unit 16 outputs the infrared signal Si (the main signal corresponding to the operation of the determination button 34) 5 seconds after the infrared signal Si corresponding to the operation of either of the cursor buttons 33A and 33B is output. Even when “another channel selection operation signal designating any channel” in the invention is output, it is determined that channel 7 is selected in the same manner as when the channel button 32G is operated. A control signal Ss indicating that is output to the control unit 15. In response to this, the control unit 15 controls the tuner 14 to extract the broadcast signal Sb of the channel 7, the video processing unit 13 generates the video data Dp based on the broadcast signal Sb, and the video synthesis unit 12. However, the display signal Se is generated based on the video data Dp and output to the optical engine 21 of the display unit 11. Thereby, as shown in FIG. 6, the television image Pt7 broadcast on the channel 7 is displayed on the screen panel 22 in the full screen display mode.

  As described above, when the television 1 receives the channel selection operation signal (infrared signal Si output in association with the channel selection operation) for the first predetermined time (3 seconds in this example), the control unit 15 displays a channel selection screen Ps1 for displaying each image corresponding to each channel in the multi-screen display mode on the screen panel 22. Therefore, according to the television 1, for example, various other remote controllers (such as a remote controller dedicated to the AV apparatus and a general-purpose remote controller (for example, the remote controller 3x), which are different from the remote controller 3 dedicated to the television 1 (switching to the multi-screen display mode) are performed. The channel selection screen Ps1 can be displayed on the screen panel 22 by using a remote controller that does not include a dedicated button. As a result, it is possible to easily select a channel by confirming what kind of broadcast is being performed on each channel using various remote controllers.

  Further, in the television 1, the control unit 15 transmits the infrared signal Si output in accordance with the operation of the channel selection operation button of each channel button 32 and the cursor buttons 33A and 33B for a first predetermined time (in this example). In this case, the channel selection screen Ps1 is displayed on the screen panel 22 when it is received for 3 seconds. Therefore, according to the television 1, the channel selection screen Ps1 can be displayed on the screen panel 22 by operating the buttons for performing the channel selection operation in the full screen display mode. As a result, the channel selection screen Ps1 can be displayed by a button operation without a sense of incongruity, and it is possible to easily select a channel by confirming what kind of broadcast is being performed on each channel.

  Further, in the television 1, when a channel selection operation signal designating any channel is received in a state where the channel selection screen Ps 1 is displayed on the screen panel 22 (in operation of the channel button 32 or determination button 34). When receiving the accompanying infrared signal Si), the control unit 15 displays the television image Pt corresponding to the designated channel on the screen panel 22 in the full screen display mode. Therefore, according to the television 1, other various remote controllers (for example, a full screen display mode from the multi-screen display mode) such as a remote controller dedicated to the AV apparatus and a general-purpose remote controller (for example, the remote controller 3x) are different from the remote controller 3 dedicated to the television 1. The TV image Pt corresponding to the desired channel can be displayed on the screen panel 22 in the full screen display mode using a remote controller that does not include a dedicated button for switching to the mode.

  Further, in the television 1, the second preliminarily defined in a state where any one of the images in the channel selection screen Ps 1 displayed on the screen panel 22 is selected (a state surrounded by the cursor C). When the predetermined time (5 seconds in this example) elapses, the control unit 15 displays the television image Pt corresponding to the selected image channel on the screen panel 22 in the full screen display mode. Therefore, according to the television 1, for example, various other remote controllers different from the remote controller 3 dedicated to the television 1, such as a remote controller dedicated to AV equipment and a general-purpose remote controller (for switching operation from the multi-screen display mode to the full-screen display mode). The television image Pt corresponding to the desired channel can be displayed in the full-screen display mode on the screen panel 22 using a remote controller not equipped with a dedicated button. Further, it is possible to select a desired channel using various remote controllers not provided with a channel designation button and display the television image Pt on the screen panel 22 in the full screen display mode.

  In addition, this invention is not limited to said structure. For example, in the television 1 described above, the signal acquisition unit according to the present invention is configured by one tuner 14, but the number of tuners configuring the signal acquisition unit is not limited to this, and for example, two tuners 14 and 14 are included. It can be installed to make up a TV. In this case, in a television provided with two tuners 14 and 14, as shown in FIG. 8, the channel selection screen (channel selection screen Ps2) and the main video screen (television video Pt) in the present invention are displayed on the screen panel 22. Can be displayed side by side. Specifically, for example, as shown in FIG. 4, the cursor button 33A of the remote control 3x is continuously operated for 3 seconds or more in a state where the television image Pt3 is displayed on the screen panel 22 in the full screen display mode. (When the infrared signal Si continues to be output for the “first predetermined time” in the present invention), the signal processing unit 16 determines that an operation for displaying the channel selection screen Ps2 has been performed. The control signal Ss indicating that is output to the control unit 15. In response to this, the control unit 15 displays the television video Pt3 based on the broadcast signal Sb extracted by one tuner 14, and sequentially receives each video corresponding to each channel by the other tuner 14 to select a channel selection screen. Ps2 is displayed. Thereby, as shown in FIG. 8, the television image Pt3 and the channel selection screen Ps2 are displayed side by side.

  At this time, for example, when channel 7 is selected, first, in a state where the channel selection screen Ps2 shown in FIG. 8 is displayed (a state in which an image corresponding to channel 4 is selected by the cursor C), for example, Three operations are performed on the cursor button 33A or nine operations on the cursor button 33B. As a result, as shown in FIG. 9, the channel selection screen Ps2 in a state where the video corresponding to the channel 7 is selected by the cursor C is displayed on the screen panel 22 along with the television video Pt3. Next, when the determination button 34 is operated within 5 seconds after the operation of the cursor buttons 33A and 33B is completed, or when the operation is not performed for 5 seconds or more after the operation of the cursor buttons 33A and 33B is completed, the signal processing unit 16 It is determined that the channel 7 has been selected, and a control signal Ss indicating that is output to the control unit 15. In response to this, the control unit 15 controls the tuner 14 to extract the broadcast signal Sb of the channel 7, the video processing unit 13 generates the video data Dp based on the broadcast signal Sb, and the video synthesis unit 12 The display signal Se is generated based on the video data Dp and output to the optical engine 21 of the display unit 11. Thereby, as shown in FIG. 6, the television image Pt7 broadcast on the channel 7 is displayed on the screen panel 22 in the full screen display mode.

  Thus, in this television, when receiving a channel selection operation signal (infrared signal Si output with the channel selection operation) for a first predetermined time (3 seconds in this example), the control unit 15 Displays the channel selection screen Ps2 and the television image Pt side by side on the screen panel 22. Therefore, according to this television, the channel selection operation can be performed while watching the television image Pt (in this example, the television image Pt3) displayed on the screen panel 22 along with the channel selection screen Ps2. Further, according to this television, since the signal acquisition unit according to the present invention is provided with two tuners, the extraction time of the broadcast signal Sb in the multi-screen display mode can be sufficiently shortened. The update time of each video on the screen Ps2 can be sufficiently shortened.

  In addition, the example in which the display unit 11 is configured by including the optical engine 21 and the screen panel 22 has been described above, but a CRT, a liquid crystal display panel, and a plasma display may be employed as the display unit in the present invention. In addition, the present invention can be applied to a display device in which a tuner is configured separately.

1 is a block diagram illustrating a configuration of a television 1. FIG. It is a front view of the television 1 and the remote control 3x. It is a display screen figure of television image | video Pt2. It is a display screen figure of television image | video Pt3. It is a display screen figure of channel selection screen Ps1. It is a display screen figure of television image Pt7. It is a display screen figure of channel selection screen Ps1 in which Ch7 is selected. It is a display screen figure of television image Pt3 and channel selection screen Ps2. It is a display screen figure of the channel selection screen Ps2 from which the television video Pt3 and Ch7 were selected.

Explanation of symbols

  1 TV, 2 main unit, 3, 3x remote control, 11 display unit, 14 tuner, 15 control unit, 16 signal processing unit, 17 timer, 18 light receiving unit, 32A-32F channel button, 33A-33D cursor button, 34 enter button , C cursor, Pt1 to Pt12 TV image, Ps1, Ps2 channel selection screen, Sb broadcast signal, Se display signal, Si infrared signal, So operation signal, Ss control signal

Claims (7)

A display unit, and a control unit that causes the display unit to display an image corresponding to any one of a plurality of channels according to the received channel selection operation signal,
The control unit displays each video corresponding to at least some of the plurality of channels on a multi-screen when receiving the channel selection operation signal for a predetermined first predetermined time. A display device for displaying a channel selection screen to be displayed on the display unit.   The control unit is a channel selection button associated with each channel, an up button for sequentially switching each channel in ascending order, and a channel selection operation for any one of a down button for sequentially switching each channel in descending order The display device according to claim 1, wherein the channel selection screen is displayed on the display unit when the channel selection operation signal output in accordance with an operation of a button is received for the first predetermined time.   The control unit, when receiving the channel selection operation signal for the first predetermined time, the channel selection screen and any one of the areas in a wider area than each video in the channel selection screen The display device according to claim 1, wherein a main video screen that displays the video corresponding to the channel is displayed side by side on the display unit.   The control unit receives the channel selection operation signal designating any channel in a state where the channel selection screen is displayed on the display unit, and displays the video corresponding to the designated channel. The display device according to claim 1, wherein the display unit displays a full screen.   When the second predetermined time specified in advance has elapsed in a state where any one of the images in the channel selection screen displayed on the display unit is selected, the control unit, 5. The display device according to claim 1, wherein a video corresponding to the channel of the selected video is displayed on the display unit on a full screen.   A television comprising: the display device according to claim 1; and a signal acquisition unit that acquires a broadcast signal for causing the display unit to display the video corresponding to each channel.   The television according to claim 6, wherein the signal acquisition unit includes a plurality of tuners that receive broadcast waves and extract the broadcast signals.

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