JP5719006B2 - Image display apparatus, image display apparatus control method, television receiver, program, and recording medium - Google Patents

Description

  The present invention relates to an image display device and a display method of the image display device. The present invention also relates to a television receiver provided with each means of the image display device, a program for operating a computer as the image display device, and a recording medium on which such a program is recorded.

  In an image display device such as a television receiver (hereinafter also referred to as “television”), it is widely performed to display a plurality of images on a single screen.

  For example, Patent Document 1 discloses a multi-screen display device in which one main screen and two sub-screens are provided in a screen, and an image is displayed on both the main screen and the sub-screen. Patent Document 2 discloses a television that mosaics a still image (a frozen frame of a video stream, that is, a frame image constituting a television program) and displays it as a puzzle game.

JP 2002-335444 A (published on November 22, 2002) Japanese Patent Laid-Open No. 8-331411 (published on December 13, 1996)

  In an image display device that displays a plurality of images on a single screen, it is often necessary to replace the images.

  For example, in the multi-screen display device described in Patent Document 1, the video that has been displayed on the first sub-screen until then is displayed on the main screen, and the video that has been displayed on the main screen until then is displayed on the second sub-screen. Display on the screen. In the television set described in Patent Document 2, when a user solves a puzzle, a partial image displayed in a certain area (an image obtained by dividing a still image) and a partial image displayed in another area are displayed. Replace each other.

  There are the following problems regarding such image replacement. That is, there is a problem that it is difficult for the user to specify an image to be replaced if the images are replaced instantaneously.

  In the multi-screen display device described in Patent Document 1, this problem is solved as follows. That is, when the multi-screen display device displays the video that has been displayed on the first sub-screen until then on the main screen, the multi-screen display device expands the video that has been displayed on the first screen until then. Use moving animations. In addition, when the multi-screen display device displays the video that has been displayed on the main screen so far on the second sub-screen, the multi-screen display device reduces the video that has been displayed on the main screen so far while reducing the second sub-screen. Use an animation that moves up.

  However, such an animation is effective when the replacement of images is unidirectional as in the multi-screen display device described in Patent Document 1. That is, when the image displayed in one area and the image displayed in another area are interchanged as in the television described in Patent Document 2, the user still specifies the image to be replaced. The problem remained that it was difficult to do.

  The present invention has been made in view of the above-mentioned problems, and its main purpose is to be replaced when an image displayed in a certain area and an image displayed in another area are interchanged with each other. An object of the present invention is to realize an image display device that allows a user to easily specify an image.

  In order to solve the above problem, an image display device according to an aspect of the present invention is an image display device that displays a plurality of images on a single screen, and displays an image to be displayed in a first region as a first. The transition from the first image to the second image is made in a stepwise manner, and the image to be displayed in the second region different from the first region is changed in a stepwise manner from the second image to the first image. It is characterized by having a transition means to make it.

  In order to solve the above problems, a control method for an image display device according to an aspect of the present invention is a control method for an image display device that displays a plurality of images on a single screen. The image to be displayed is gradually changed from the first image to the second image, and the image to be displayed in the second area different from the first area is changed from the second image to the first image. It is characterized by including a transition step that makes a transition in stages.

  According to one aspect of the present invention, when an image displayed in a certain area and an image displayed in another area are interchanged with each other, the user can easily specify the image to be replaced. Become.

It is a block diagram which shows the outline of a structure of the display system which concerns on one Embodiment of this invention. It is a schematic diagram which shows an example of the arrangement | positioning table produced | generated in the mosaic part which concerns on one Embodiment of this invention, (a) shows an example of the frame for mosaic images, (b) shows an example of a partial image. It is a schematic diagram, (c) is a schematic diagram which shows an example of the arrangement | positioning table with which the block number and partial image number of the frame for mosaic images were linked | related, (d) shows an example of the mosaic image. It is a schematic diagram. It is a figure for demonstrating the outline | summary of the replacement process of the image by the mosaic part which concerns on one Embodiment of this invention. (A) is a conceptual diagram which shows an example of one partial image at the time of the replacement process being performed by the mosaicing part, (b) is the other part at the time of the replacement process being performed by the mosaicing part. It is a conceptual diagram which shows an example of an image, (c) is a schematic diagram which shows an example of the display image at the time of the replacement process being performed by the mosaic part. It is a figure for demonstrating the specific example of the replacement process of the image by the mosaic part which concerns on one Embodiment of this invention. (A) is a schematic diagram for demonstrating the procedure in which a mosaicing part produces | generates an image in the replacement process by a mosaicing part, (b) is one of the display images transitioned in steps by a mosaicing part. It is a transition diagram which shows an example, (c) is a transition diagram which shows an example of the other display image changed in steps by the mosaic part. It is a figure for demonstrating the modification of the replacement process of the image by the mosaic part which concerns on one Embodiment of this invention. (A) is a schematic diagram for demonstrating the procedure in which a mosaicing part produces | generates an image in the replacement process by a mosaicing part, (b) is one of the display images transitioned in steps by a mosaicing part. It is a transition diagram which shows an example, (c) is a transition diagram which shows an example of the other display image changed in steps by the mosaic part. In the mosaic part which concerns on one Embodiment of this invention, it is a figure for demonstrating the structure which changes a replacement process according to the positional relationship of two area | regions used as replacement object. (A) is a schematic diagram which shows an example of the exchange process which a mosaicing part performs when the display position of the horizontal direction of two area | regions used as exchange object mutually corresponds, (b) is two figures used as exchange object. It is a schematic diagram which shows an example of the replacement process which a mosaicing part performs when the display position of the orthogonal | vertical direction of an area | region corresponds mutually. It is a figure for demonstrating the other modification of the image replacement process by the mosaic part which concerns on one Embodiment of this invention. (A) is a transition diagram showing an example of one display image that is gradually changed by the mosaicing unit, and (b) is a transition showing an example of the other display image that is gradually changed by the mosaicing unit. FIG. It is a transition diagram for demonstrating the other modification of the replacement process of the image by the mosaic part which concerns on one Embodiment of this invention. (A) is an example of one display image that is gradually shifted by the mosaicing unit, and (b) is a transition diagram that illustrates an example of the other display image that is gradually shifted by the mosaicing unit. is there. It is a schematic diagram which shows an example of the other modification of the image replacement process by the mosaic part which concerns on one Embodiment of this invention. It is a block diagram which shows the outline | summary of a structure of the display system which concerns on other embodiment of this invention. It is a figure for demonstrating the replacement process of the image by the image transition part which concerns on other embodiment of this invention. (A) is a transition diagram which shows an example of the transition of a display screen at the time of an exchange process being performed by the image transition part, (b) is a schematic diagram for demonstrating the procedure of the exchange process by an image transition part. It is a block diagram which shows the outline | summary of a structure of the display system which concerns on further another embodiment of this invention. It is a schematic diagram which shows an example of the screen which the image display apparatus which concerns on other embodiment of this invention displays. BRIEF DESCRIPTION OF THE DRAWINGS It is an external view which shows the structural example of the image display apparatus which concerns on one Embodiment of this invention, (a) is an external view which shows the image display apparatus and the external display connected to the said image display apparatus, (b) () Is an external view showing an image display device provided with a display, and (c) is an external view showing the image display device and a playback device connected to the image display device. It is a graph which shows the time-dependent change of the transmittance | permeability of a 1st image, and the time-dependent change of the transmittance | permeability of a 2nd image in the image replacement process by the mosaic part which concerns on one Embodiment of this invention. It is a graph which shows the time-dependent change of the transmittance | permeability of a 1st image, and the time-dependent change of the transmittance | permeability of a 2nd image in the image replacement process by the mosaic part which concerns on one Embodiment of this invention.

<Embodiment 1>
An image display apparatus according to an embodiment of the present invention will be described below with reference to FIGS. However, unless otherwise specified, the configuration described in this embodiment is not merely intended to limit the scope of the present invention, but is merely an illustrative example.

  In the present embodiment, since the image display device is realized by a television receiver (television), hereinafter, it is also referred to as a television. The image display device according to the present embodiment is an image display device that displays a plurality of images on a single screen, and each of the plurality of images is a portion obtained by dividing a single moving image. It is a moving image.

  Therefore, in the present embodiment, the image display device divides the display area into a plurality of areas, and displays each of the plurality of partial moving images in each divided area. The image display device also includes an image (first image) to be displayed in a certain area (first area) among the plurality of areas, and another area (a different area from the certain area among the plurality of areas). A replacement process is performed to replace the image (second image) displayed in the (second region). In the present embodiment, the image replacement process is realized by receiving an instruction from a user using a remote controller (hereinafter also referred to as “remote controller”), for example.

[Configuration of display system]
First, the configuration of the display system according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing an outline of the configuration of a display system 1 according to the present embodiment.

  As shown in FIG. 1, the display system 1 includes a television 10 and a remote controller 20. Further, as shown in FIG. 1, the television 10 includes a tuner unit 101, a decoder 102, a video buffer 103, a scaling unit 104, a transfer unit 105, a graphic buffer 106, a mosaicing unit 107, a remote control receiving unit 108, and a display control unit 109. And a display 110.

(Tuner)
The tuner unit 101 is a tuner for receiving a broadcast program broadcast by terrestrial digital broadcast, a broadcast program broadcast by satellite broadcast, and the like.

  The tuner unit 101 may be a double tuner that can simultaneously receive two broadcast programs broadcast via different channels, or can simultaneously receive three or more broadcast programs. A multi-tuner may be used.

(decoder)
The decoder 102 decodes moving image data representing a broadcast program received by the tuner unit 101 into a video signal and an audio signal.

  The decoder 102 is, for example, an RF unit that converts a received signal indicating a broadcast program received by the tuner unit 101 into an analog baseband signal, an ADC unit that converts an analog baseband signal into a digital baseband signal, and MPEG2 from the digital baseband signal. The demodulator can demodulate the stream, and the decoder can decode the video signal and the audio signal from the MPEG2 stream.

  The decoder 102 sequentially stores frame images constituting the decoded video signal (single moving image) in the video buffer 103.

(Video buffer)
Frame images are sequentially stored in the video buffer 103 by the decoder 102. For example, the frame image is sequentially stored in the video buffer 103 at the same cycle (hereinafter, also simply referred to as a 1V cycle) as one vertical synchronization frequency (1V frequency).

(Scaling part)
The scaling unit 104 sequentially acquires frame images stored in the video buffer 103 and generates a video plane. Further, the scaling unit 104 performs scaling processing on the frame image included in the generated video plane, and then supplies it to the display control unit 109. Note that the scaling unit 104 sequentially acquires frame images from the video buffer 103 at the same cycle (1V cycle) as the cycle at which frame images are stored in the video buffer 103.

  The scaling unit 104 may scale the size of the frame image to the size displayed on the entire display 110 or the size displayed on a partial area of the display 110. For example, the size of scaling in the scaling unit 104 may be determined by a user instruction by a remote control operation, or may be controlled by a control unit (not shown).

  The scaling unit 104 sequentially supplies the generated video plane to the display control unit 109.

(Transfer part)
The transfer unit 105 sequentially acquires the frame images stored in the video buffer 103 and sequentially stores the acquired frame images in the graphic buffer 106.

  The transfer unit 105 will be described by taking as an example the case where the frame image is sequentially stored in the graphic buffer 106 at the same cycle (1V cycle) as the cycle in which the frame image is stored in the video buffer 103. It is not limited to. For example, the transfer unit 105 may sequentially store the frame images in the graphic buffer 106 at a cycle that is an integral multiple of the 1V cycle (2V cycle, 3V cycle, etc.).

(Graphic buffer)
Frame images are sequentially stored in the graphic buffer 106 by the transfer unit 105.

(Mosaic Division)
The mosaic unit 107 sequentially acquires frame images stored in the graphic buffer 106 and generates a graphic plane. Further, as will be described later, the mosaicing unit 107 performs a mosaicing process according to a user instruction regarding mosaicing indicated by the remote control signal received by the remote control receiving unit 108. Here, the mosaic processing means that the frame image is decomposed into a plurality of partial images and the arrangement of the partial images is shuffled.

  Further, the mosaicing unit 107 changes the partial image to be displayed in a certain region (first region) from the currently displayed image (first image) to another region (the first image) in the process of the mosaic processing. The second image (second region different from the first region) is gradually changed to the image (second image) displayed at the same time, and the partial image displayed in the other region (second region) is currently displayed. It functions as a transition means for making a transition in a stepwise manner from an image (second image) being displayed to an image (first image) displayed in a certain region (first region).

  At this time, when the frame image is sequentially stored in the graphic buffer 106 by the transfer unit 105 in the 1V cycle, the mosaicking unit 107 may sequentially acquire the frame image in the 1V cycle, or may be an integer of 1V cycle. You may acquire sequentially with a double period. Further, when the transfer unit 105 sequentially stores frame images in the graphic buffer 106 at a cycle that is an integer multiple of 1V cycle, the mosaicing unit 107 may acquire the frame image at a cycle that is an integer multiple of 1V cycle.

  The mosaicking unit 107 can obtain a mosaiced image with a smooth moving image by sequentially acquiring frame images from the graphic buffer 106 in a cycle of 1V and generating a mosaiced image. On the other hand, the mosaicing unit 107 sequentially obtains frame images from the graphic buffer 106 at a cycle that is an integer multiple of the 1V cycle to generate a mosaiced image, thereby generating a mosaiced image on the television 10 including the mosaicing unit 107. It is possible to reduce the processing load related to generation.

  Next, the mosaic unit 107 reads out the mosaiced image frame selected in the user instruction indicated by the remote control signal from the storage unit (not shown). Further, the mosaic unit 107 divides the frame image acquired from the graphic buffer 106 into a plurality of partial images according to the blocks included in the mosaic image frame. Although details of the mosaic image frame will be described later, a plurality of blocks are arranged in a lattice pattern in the mosaic image frame according to the present embodiment.

  Then, the mosaic unit 107 generates an arrangement table (arrangement information) for determining which of the partial images is arranged in which block of the read mosaic image frame. Note that the mosaic unit 107 may randomly generate the arrangement table when shuffling. Details of the arrangement table will be described later with different drawings.

  Subsequently, the mosaicking unit 107 refers to the generated arrangement table, and generates a mosaiced image that arranges the partial images acquired from the graphic buffer 106 in corresponding blocks in a stepwise manner. That is, the mosaic unit 107 generates a frame so that the first image and the second image of the plurality of partial images obtained by dividing the frame image stored in the graphic buffer 106 are replaced in stages. An image (hereinafter also referred to as “transition frame image”) is generated.

  That is, the mosaicking unit 107 refers to the generated arrangement table and generates a transition frame image that satisfies the following conditions (1) and (2).

Condition (1) The first area includes the first image in the first ratio, and the first area includes the second image in the second ratio. Condition (2) Second The area includes the first partial image at a third ratio, and the second area includes the second image at a fourth ratio. Further, the mosaicing unit 107 includes a condition (1) And the transition frame image is sequentially generated while changing the first to fourth ratios shown in (2) stepwise. Details of the sequential generation of transition frame images by the mosaicing unit 107 will be described later.

  The mosaic unit 107 generates a graphic plane including the generated transition frame image, and sequentially supplies the generated graphic plane to the display control unit 109.

  In addition, after generating the mosaic image in which the image replacement is completed as described above, the mosaic unit 107 sequentially acquires the frame images sequentially stored in the graphic buffer 106 and refers to the arrangement table. Then, a graphic plane including a mosaic image in which partial images are arranged in corresponding blocks is generated. Thereby, since the partial image arrange | positioned at each block is updated sequentially, a mosaic image can be implement | achieved by a moving image.

  In addition, the mosaicing unit 107 replaces the image not only in the process of generating the mosaicked image but also in the case of receiving a replacement instruction for replacing any two images included in the mosaiced image. A mosaic image can be generated in stages. The instruction to replace two images is realized, for example, by a remote control operation by the user. After a selection operation is performed on a certain block in the mosaic image, a selection operation is performed on another block different from the certain block. An exchange instruction can be received with the fact that it has been triggered.

(Remote control receiver)
The remote control receiving unit 108 receives a remote control signal that is wirelessly transmitted from the remote control 20 and indicates a user instruction performed by the user operating the remote control, and receives the received remote control signal according to the user instruction indicated by the remote control signal. It supplies to each part with which 10 is provided.

  For example, if the user instruction indicated by the received remote control signal is an instruction to mosaic the display image, the remote control reception unit 108 supplies the remote control signal to the mosaicing unit 107. Further, when the user instruction indicated by the received remote control signal is an instruction to replace any two images among the plurality of divided images, remote control receiving unit 108 supplies the remote control signal to mosaicing unit 107.

  The remote controller 20 receives a user's remote control operation, and transmits a user instruction indicated by the received remote control operation as a remote control signal to the television 10 (more specifically, the remote control reception unit 108 provided in the television 10). Note that the remote controller 20 according to the present embodiment can also be realized by a remote control function such as a smartphone.

  Examples of wireless communication between the remote controller 20 and the remote control receiver 108 include wireless communication such as infrared, Bluetooth (registered trademark), and IEEE 80211, for example, but are not limited thereto. .

(Display control unit, display)
The display control unit 109 displays a broadcast program composed of frame images included in the video plane on the display 110 by sequentially drawing the video plane sequentially supplied from the scaling unit 104 on the display 110. In addition, the display control unit 109 displays the mosaicized broadcast program including the frame images included in the graphic plane on the display 110 by sequentially drawing the graphic plane sequentially supplied from the mosaicing unit 107 on the display 110. .

[Allocation table]
Next, the arrangement table will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of an arrangement table generated in the mosaic unit 107 according to the present embodiment. 2A is a diagram illustrating an example of a mosaic image frame, FIG. 2B is a diagram illustrating an example of a partial image, and FIG. 2C is a block number (block No.) of a puzzle frame. FIG. 6 is a diagram illustrating an example of an arrangement table in which a partial image number (partial image No) is associated with each other, and FIG.

  When the mosaic image frame specified in the mosaic instruction has, for example, 16 blocks of 4 rows and 4 columns, each block has 1 to 16 as shown in FIG. A block number is given. Hereinafter, the block having the block number “X” is also referred to as “block X”.

  As shown in FIG. 2B, the mosaic unit 107 performs block numbers given to blocks at positions corresponding to the partial images for each of the partial images divided in accordance with the mosaic image frame. A partial image number having the same value as is attached. Hereinafter, the partial image having the partial image number “Y” is also referred to as “partial image Y”.

  Then, the mosaicing unit 107 replaces the partial image arranged in a certain block with the partial image arranged in another block, and as shown in FIG. An arrangement table in which the partial image to be arranged is associated is generated. In the arrangement table shown in FIG. 2C, for example, the partial image 7 is arranged in the block 1 and the partial image 5 is arranged in the block 8.

  The mosaicing unit 107 refers to the arrangement table shown in FIG. 2C, and is an image as shown in FIG. 2D, that is, an image in which partial images are arranged in the corresponding blocks. A graphic plane including the frame image thus generated is generated and supplied to the display control unit 109. The generated arrangement table may be stored in a storage unit (not shown).

[Partial image replacement processing]
Next, an overview of partial image replacement processing by the mosaicing unit 107 will be described with reference to FIG. FIG. 3 is a diagram for explaining an overview of the partial image replacement process performed in the mosaic unit 107 according to the present embodiment. In the example shown in FIG. 3, when the image shown in FIG. 2D is displayed, the partial image 11 (first image) displayed in the block 2 (first area) and the block 10 are displayed. A case where the partial image 12 (second image) displayed in the (second region) is replaced will be described.

  FIG. 3A is a diagram illustrating an example of one partial image when the mosaicing unit 107 performs the replacement process, and FIG. 3B illustrates the replacement process performed by the mosaicing unit 107. FIG. 3C is a diagram illustrating an example of a display image when the mosaicing unit 107 performs a replacement process.

  In the example illustrated in FIG. 3, the first area and the second area include a part of the first image and a part of the second image. The first ratio indicated in the condition (1) is the ratio of the area of the first image to the area of the first region, and the second ratio is the first ratio relative to the area of the first region. 2 is the ratio of the area of the two images. The third ratio shown in the condition (2) is the ratio of the area of the first image to the area of the second region, and the fourth ratio is the ratio of the area of the second region to the area of the second region. 2 is the ratio of the area of the two images. The mosaicing unit 107 lowers the first ratio and the fourth ratio in stages, and increases the second ratio and the third ratio in stages, thereby transitioning in stages. Generate images sequentially.

  For example, as illustrated in FIG. 3A, the mosaic unit 107 according to the present embodiment causes the partial image 11 to be slotted out downward toward the display surface with the boundary line B <b> 1 as the boundary line, and the partial image 12. The image to be displayed on the block 2 is shifted stepwise so that the image is slotted in from the top toward the display surface. In order to indicate that the image displayed in the block 2 is selected as a target for the replacement process, the mosaic unit 107 indicates the frame F1 (shown by a broken line in FIG. 3A) around the block 2. ) Is displayed.

  Further, as shown in FIG. 3B, the mosaicing unit 107 slot-outs the partial image 12 downward toward the display surface with the boundary line B2 as the boundary line, and directs the partial image 11 toward the display surface. Then, the image displayed on the block 10 is shifted step by step so that the slot is inserted from above.

  Further, the mosaicing unit 107 displays a frame line F2 around the block 2 (one point in FIG. 3B) to indicate that the image displayed in the block 10 is selected as a target for the replacement process. (Shown with a chain line). Note that the mosaic unit 107 preferably makes the frame line F1 and the frame line F2 to be displayed different from each other. Further, the mosaic unit 107 may blink the frame line F1 and the frame line F2. Furthermore, the mosaicing unit 107 may be configured to change at least one of the blinking frequency or phase of the frame line F1 and the frame line F2. By configuring as described above, the user can easily specify the image to be replaced.

[Specific example of replacement processing]
Next, a specific example of the replacement process by the mosaic unit 107 will be described with reference to FIG. FIG. 4 is a diagram for describing a specific example of the replacement processing by the mosaicing unit 107. Also in the example shown in FIG. 4, as in the example shown in FIG. 3, when the image shown in FIG. 2D is displayed, the partial image 11 (displayed in the block 2 (first region)) ( A case where the first image) and the partial image 12 (second image) displayed in the block 10 (second region) are exchanged will be described.

  In the example illustrated in FIG. 4, the first area and the second area include a part of the first image and a part of the second image. The first ratio indicated in the condition (1) is the ratio of the area of the first image to the area of the first region, and the second ratio is the first ratio relative to the area of the first region. 2 is the ratio of the area of the two images. The third ratio shown in the condition (2) is the ratio of the area of the first image to the area of the second region, and the fourth ratio is the ratio of the area of the second region to the area of the second region. 2 is the ratio of the area of the two images. The mosaic unit 107 decreases the first ratio and the fourth ratio in stages, and increases the second ratio and the third ratio in stages, so that the first area and the second area , The transition frame image that changes stepwise is sequentially generated by moving the boundary line between the first image and the second image in the vertical direction toward the display surface.

  FIG. 4A is a diagram for describing a procedure in which the mosaicing unit 107 generates an image in the replacement processing by the mosaicing unit 107. FIG. 4A shows an image α which is a first partial image read from the first area of the frame image stored in the graphic buffer 106 and a second area of the frame image stored in the graphic buffer 106. The image (beta) which is the 2nd partial image read out from is shown.

  The mosaic unit 107 divides the image α into an image α1 and an image α2 shown in FIG. 4A using the dividing line D1 as a boundary line. Similarly, the mosaic unit 107 divides the image β into an image β1 and an image β2 shown in FIG. 4A using the dividing line D2 as a boundary line.

  The mosaicing unit 107 combines the image α1 with the first ratio and the image β2 with the second ratio in the block 2 (the above condition (1)), thereby displaying the image to be displayed on the block 2. Is generated. At this time, the mosaic unit 107 synthesizes the image α1 and the image β2 so that the image α1 is disposed below the boundary line B1 and the image β2 is disposed above the boundary line B1.

  Further, the mosaicing unit 107 combines the image α2 with the third ratio and the image β1 with the fourth ratio in the block 10 (the above condition (2)), thereby combining the block 10 with the block 10. Generate an image to display. At this time, the mosaic unit 107 synthesizes the image α2 and the image β1 so that the image β1 is disposed below the boundary line B2 and the image α2 is disposed above the boundary line B1.

  The mosaicking unit 107 generates a transition frame image including the generated images and supplies the transition frame image to the display control unit 109.

  Subsequently, the mosaic unit 107 performs the same processing while moving the dividing line D1 of the image α and the dividing line D2 of the image β upward toward the display surface. By the above processing, the mosaicing unit 107 is a boundary line displayed in each of the block 2 and the block 10, and lowers the boundary lines B1 and B2 between the image α and the image β toward the display surface. Will be moved.

  At this time, the image α and the image β are newly read from the first area and the second area of the frame image stored in the graphic buffer 106. Since the frame image is sequentially stored in the graphic buffer 106 by the transfer unit 105, it can be displayed as a smooth moving image even when the original image is a moving image. The mosaicing unit 107 repeats the above processing, so that the mosaicing unit 107 slots the currently displayed image downward toward the display surface and another image from above toward the display surface. Images that transition in stages so as to be slot-in can be sequentially generated.

  The mosaicing unit 107 displays the currently displayed image by repeating the same processing while moving the dividing line D1 of the image α and the dividing line D2 of the image β downward toward the display surface. It may be configured to sequentially generate images that transition in stages so as to slot out upward toward the screen and to slot in other images from below toward the display surface.

  FIG. 4B is a diagram illustrating an example of one display image that is shifted in stages by the mosaicing unit 107, and FIG. 4C is the other image that is shifted in stages by the mosaicing unit 107. It is a figure which shows an example of a display image. In the examples shown in FIGS. 4B and 4C, the case where the display image is a still image will be described for convenience of explanation. However, this does not limit the present invention, and the display image is a moving image. It may be an image.

  As shown in FIG. 4B, the image α is displayed in the block 2 at the start of the replacement process. Subsequently, when the replacement process proceeds, an image in which the display size of the image α1> the display size of the image β2 is displayed in the block 2. Subsequently, when the replacement process further proceeds, in block 2, an image having the display size of the image α1 = the display size of the image β2 is displayed. Subsequently, an image satisfying the display size of the image α1 <the display size of the image β2 is displayed in the block 2, and the image β is displayed in the block 2 at the end of the replacement process.

  On the other hand, as shown in FIG. 4C, the image β is displayed in the block 10 at the start of the replacement process. Subsequently, when the replacement process proceeds, an image in which the display size of the image β1> the display size of the image α2 is displayed in the block 10. Subsequently, when the replacement process further proceeds, the block 10 displays an image having the display size of the image β1 = the display size of the image α2. Subsequently, an image satisfying the display size of the image β1 <the display size of the image α2 is displayed in the block 10, and the image α is displayed in the block 10 at the end of the replacement process.

  Therefore, by configuring as described above, it is possible to change the image to be replaced in a stepwise manner at the time of executing the replacement process, so that the user can easily change the image to be replaced. It becomes possible to specify.

  The replacement process performed by the mosaicing unit 107 according to the present embodiment is not limited to the process illustrated in FIG. 4, and the mosaicing unit 107 may be configured as in the following modification.

[Modification of replacement processing]
Next, a modification example of the replacement process by the mosaic unit 107 will be described with reference to FIGS. In the following modified example, as in the example shown in FIG. 3, when the image shown in FIG. 2D is displayed, the partial image 11 displayed in the block 2 and the display in the block 10 are displayed. A case where the partial image 12 that has been replaced is replaced will be described.

(Modification 1)
FIG. 5 is a diagram for explaining a modified example of the replacement processing by the mosaicing unit 107. FIG. 5A is a diagram for explaining a procedure in which the mosaicing unit 107 generates an image in the replacement processing by the mosaicing unit 107. FIG. 5B is a diagram illustrating an example of one display image that is changed in stages by the mosaicing unit 107, and FIG. 5C is a diagram showing the other display image that is changed in stages by the mosaicing unit 107. It is a figure which shows an example of a display image.

  This modification is different from the example shown in FIG. 4 in that the currently displayed image is slotted out on the right side toward the display surface and another image is slotted in on the left side toward the display surface. The point is to make a transition in stages.

  That is, in the example illustrated in FIG. 5, the first area and the second area include a part of the first image and a part of the second image. The first ratio indicated in the condition (1) is the ratio of the area of the first image to the area of the first region, and the second ratio is the first ratio relative to the area of the first region. 2 is the ratio of the area of the two images. The third ratio shown in the condition (2) is the ratio of the area of the first image to the area of the second region, and the fourth ratio is the ratio of the area of the second region to the area of the second region. 2 is the ratio of the area of the two images. The mosaic unit 107 decreases the first ratio and the fourth ratio in stages, and increases the second ratio and the third ratio in stages, so that the first area and the second area , The transition frame image that changes stepwise is sequentially generated by moving the boundary line between the first image and the second image in the horizontal direction toward the display surface.

  Therefore, in the present modification, the dividing line D1 of the image α that is the first partial image and the dividing line D2 of the image β that is the second partial image are arranged in the vertical direction in FIG. This is different from the example shown in (a). Similar to the example illustrated in FIG. 4, the mosaic unit 107 divides the image α into the image α1 and the image α2 using the dividing line D1 as a boundary line, and the image β using the dividing line D2 as a boundary line. The image is divided into an image β1 and an image β2.

  The mosaicing unit 107 combines the image α1 with the first ratio and the image β2 with the second ratio in the block 2 (the above condition (1)), thereby displaying the image to be displayed on the block 2. Is generated. The mosaic unit 107 combines the image α1 and the image β2 such that the image α1 is arranged on the right side of the boundary line B1 and the image β2 is arranged on the left side of the boundary line B1.

  Further, the mosaicing unit 107 combines the image α2 with the third ratio and the image β1 with the fourth ratio in the block 10 (the above condition (2)), thereby combining the block 10 with the block 10. Generate an image to display. The mosaic unit 107 combines the image α2 and the image β1 so that the image β1 is arranged on the right side of the boundary line B2 and the image α2 is arranged on the left side of the boundary line B1. The mosaicking unit 107 generates a transition frame image including the generated images and supplies the transition frame image to the display control unit 109.

  Subsequently, the mosaic unit 107 reads out the new image α and image β from the graphic buffer 106, and moves the dividing line D1 of the image α and the dividing line D2 of the image β to the left side toward the display surface. The same processing is performed. Through the above processing, the mosaicing unit 107 is a boundary line displayed in each of the block 2 and the block 10, and the boundary lines B1 and B2 between the image α and the image β are set to the right side toward the display surface. Will be moved. By repeating the above processing, the mosaicing unit 107 slot-outs the currently displayed image to the right side toward the display surface as shown in FIGS. It is possible to sequentially generate images that transition in stages so that the images are slotted in from the left side toward the display surface. Further, the mosaicing unit 107 repeats the same processing while moving the dividing line D1 of the image α and the dividing line D2 of the image β to the right side toward the display surface, thereby changing the currently displayed image to the left side. It may be configured to sequentially generate images that transition in stages so that other images are slotted in from the right side.

  In the present modification, the replacement process performed by the mosaicking unit 107 may be changed according to the positional relationship between the two areas to be replaced. A specific example of the above configuration will be described with reference to FIG.

  FIG. 6 is a diagram for describing a configuration in which the replacement process performed by the mosaicking unit 107 is changed according to the positional relationship between two regions to be replaced.

  For example, as illustrated in FIG. 6A, when the two regions to be replaced are the block 2 and the block 10, the mosaicking unit 107 moves the currently displayed image downward toward the display surface. It is preferable to make a transition in stages so that other images are slotted in from the top toward the display surface. That is, when the horizontal display position of the first area and the horizontal display position of the second area coincide with each other, the mosaicking unit 107 performs the first area and the second area in the first area and the second area. The boundary line between the second image and the second image is moved in the vertical direction toward the display surface. In order to determine whether or not the horizontal display positions of the two areas match each other, a block number may be used. For example, when the block number indicating the replacement target area selected earlier is “2”, the block number indicating the replacement target area selected later is “6”, “10”, or What is necessary is just to comprise so that it may determine whether it is "14".

  Also, for example, as shown in FIG. 6B, when the two areas to be exchanged are the block 2 and the block 4, the mosaicing unit 107 displays the two areas in the vertical direction with respect to each other. In the case of coincidence, it is preferable that the currently displayed image is slotted out to the right side toward the display surface and the other images are shifted in stages so as to be slotted in from the left side toward the display surface. That is, when the vertical display position of the first area matches the vertical display position of the second area, the mosaicing unit 107 performs the first area and the second area in the first area and the second area. The boundary line between the first image and the second image is moved in the horizontal direction toward the display surface. In order to determine whether the vertical display positions of the two areas coincide with each other, a block number may be used. For example, when the block number indicating the replacement target area selected earlier is “2”, the block number indicating the replacement target area selected later is “1”, “3”, or What is necessary is just to comprise so that it may determine whether it is "4".

  In addition, when both the horizontal display position and the vertical display position of the two areas to be replaced are different from each other, the mosaicing unit 107 is currently displaying as a predetermined process. What is necessary is just to comprise so that an image which changes in steps so that an image may be slotted out downward toward the display surface and another image may be slotted in from the upper direction toward the display surface.

  According to the above configuration, the user can easily specify the image to be replaced while suppressing the uncomfortable feeling given to the user who is watching the television 10.

(Modification 2)
FIG. 7 is a diagram for explaining another modified example of the replacement process performed by the mosaicing unit 107. FIG. 7A is a diagram showing an example of a display image that is changed in stages by the mosaicking unit 107 and that is displayed in one area to be replaced. FIG. 7B is a diagram illustrating an example of a display image that is changed in a stepwise manner by the mosaicking unit 107 and that is a display image of the other region to be replaced.

  This modification is different from the above-described embodiment in that after the currently displayed image is faded out, transition is made in stages so that other images are faded in.

  In the example shown in FIG. 7, the first ratio shown in the condition (1) is the brightness of the first image in the first area, and the second ratio is the second image in the first area. Is the brightness. Further, the third ratio indicated in the condition (2) is the brightness of the first image in the second area, and the fourth ratio is the brightness of the second image in the second area. . The mosaicing unit 107 reduces the first ratio and the fourth ratio in stages, and then increases the second ratio and the third ratio in stages, thereby increasing the steps. Transition frame images that transition to are sequentially generated.

  In the present modification, the storage unit (not shown) of the television 10 stores in advance a black image composed only of black, and the mosaic unit 107 adds the transmittance to the currently displayed image. By superimposing and displaying a black image in which the color is changed, the brightness of the image can be changed. Here, the “transmittance” of an image indicates a ratio of transmitting an image arranged on the back side of the image. For example, when the transmittance of the image is 100%, the image becomes transparent, and only the image arranged on the back side of the image is displayed. That is, by reducing the transmittance of a black image superimposed on a certain image, the brightness of the image is decreased, and by increasing the transmittance of a black image superimposed on a certain image, the brightness of the image is increased. Will do.

  For example, the mosaicing unit 107 generates an image with lightness lower than that of the currently displayed image by superimposing a black image with a transmittance set to 75% on the currently displayed image. Can do. Further, the mosaicking unit 107 can generate an image with further reduced brightness by superimposing and displaying a black image with a transmittance set to 50% on the currently displayed image. Therefore, the mosaicing unit 107 can obtain a fade-out effect by gradually reducing the transmittance of the black image superimposed on the currently displayed image.

  Specifically, the mosaicing unit 107 sequentially generates images to be displayed in the block 2 by gradually reducing the transmittance of the black image superimposed on the currently displayed image α until it reaches 0%. . Subsequently, the mosaicing unit 107 generates an image in which a black image with a transmittance set to 0% is superimposed on the image β as an image to be displayed in the block 2. Subsequently, the mosaic unit 107 can sequentially generate images to be displayed in the block 2 by gradually increasing the transmittance of the black image superimposed on the image β until it reaches 100%. Similarly, the mosaic unit 107 sequentially generates images to be displayed on the block 10 by gradually reducing the transmittance of the black image superimposed on the currently displayed image β until it reaches 0%. Subsequently, the mosaicking unit 107 generates an image in which a black image with a transmittance set to 0% is superimposed on the image α as an image to be displayed on the block 10. Subsequently, the mosaic unit 107 can sequentially generate images to be displayed on the block 10 by gradually increasing the transmittance of the black image superimposed on the image α until it reaches 100%.

  As shown in FIG. 7A, the image α is displayed in the block 2 at the start of the replacement process. Subsequently, when the replacement process proceeds, the image α displayed in the block 2 fades out, and a black image is displayed in the block 2. Subsequently, the image β fades in in the block 2, and the image β is displayed in the block 2 at the end of the replacement process. On the other hand, as shown in FIG. 7B, the image β is displayed in the block 10 at the start of the replacement process. Subsequently, when the replacement process proceeds, the image β displayed in the block 2 fades out, and a black image is displayed in the block 10. Subsequently, the image α fades in in the block 2, and the image α is displayed in the block 2 at the end of the replacement process.

  With the configuration described above, since the black image is displayed during the image replacement process, the user can easily specify the image that is the target of the replacement.

  In this modification, a black image is used as an image to be superimposed on the image α and the image β, but the image to be superimposed on the images α and β is not limited to this. That is, any single color image can be used as an image to be superimposed on the image α and the image β. For example, when a white image is used as an image to be superimposed on a certain image, by reducing the transmittance of the white image to be superimposed on a certain image, the brightness of the image increases, and the white image to be superimposed on a certain image By increasing the transmittance of the image, the brightness of the image decreases. In the above case, the mosaicing unit 107 gradually increases the first ratio and the fourth ratio, and then decreases the second ratio and the third ratio in stages. As a result, transition frame images that transition in stages are sequentially generated. According to the above configuration, the mosaicing unit 107 can fade out the currently displayed image to the white image and then fade in the other image to the white image. Can be easily identified by the user.

  Further, in this modification, the lightness of the image is changed by changing the transmittance of the monochromatic image superimposed on a certain image in stages, but the present invention is limited to this. It is not a thing. For example, the mosaicing unit 107 may be configured to change the lightness by changing the transmittance of the currently displayed image. For example, in the television 10, when black is set as the background color, by increasing the transmittance of a certain image, the brightness of the image is decreased and the transmittance of a certain image is decreased. The brightness of the image will increase. Therefore, when configured as described above, it is not necessary to store in advance a monochromatic image used for changing the brightness of an image in a storage unit (not shown).

  For example, the mosaicing unit 107 can generate an image with lightness lower than that of the currently displayed image by setting the transmittance of the currently displayed image from 0% to 25%. Further, the mosaicing unit 107 can generate an image with further reduced brightness by setting the transmittance of the currently displayed image from 25% to 50%. Therefore, the mosaic unit 107 can obtain a fade-out effect by gradually increasing the transmittance of the currently displayed image.

  FIG. 15 is a graph showing the temporal change in the transmittance of the first image and the temporal change in the transmittance of the second image in the image replacement processing by the mosaicing unit 107 according to the present modification. In the graph shown in FIG. 15, the horizontal axis represents time, and the vertical axis represents image transmittance. In the graph shown in FIG. 15, the transmittance of the image α in the block 2 is indicated by a solid line, and the transmittance of the image β in the block 2 is indicated by a broken line.

  As shown in FIG. 15, at time T0, which is the start time of the image replacement process, the transmittance of the image α currently displayed in the block 2 is 0%, and the transmittance of the image β is 100%. Therefore, only the image α is displayed in the block 2. The mosaic unit 107 sequentially generates images to be displayed on the block 2 by gradually increasing the transmittance of the image α until it reaches 100%. When the transmittance of the image α reaches 100% at time T1 shown in FIG. 15, one black color (color preset as a background color) is displayed in the block 2. Subsequently, the mosaicing unit 107 sequentially generates images to be displayed in the block 2 by gradually reducing the transmittance of the image β until it reaches 0%. As shown in FIG. 15, at time T2, which is the end point of the image replacement process, the transmittance of the image α is 100%, and the transmittance of the image β is 0%. Is displayed. Similarly, the mosaicing unit 107 gradually increases the transmittance of the image β currently displayed on the block 10 until it reaches 100%, and then sets the transmittance of the image α displayed on the block 10 to 0%. By gradually decreasing until it becomes, an image to be displayed on the block 10 can be sequentially generated.

(Modification 3)
FIG. 8 is a diagram for explaining another modified example of the replacement process performed by the mosaic unit 107. FIG. 8A shows an example of a display image that is shifted in a stepwise manner by the mosaicking unit 107 and that is a display image of one area to be replaced. FIG. 8B is a diagram illustrating an example of a display image that is gradually changed by the mosaicing unit 107 and that is a display image of the other region to be replaced.

  This modification is different from the above-described embodiment in that the currently displayed image is faded out, and another image is faded in, that is, a transition is made in stages so as to crossfade.

  In the example shown in FIG. 8, the first ratio shown in the condition (1) is the transmittance of the first image in the first area, and the second ratio is the first ratio in the first area. It is the transmittance | permeability of the image of 2. FIG. Further, the third ratio indicated in the condition (2) is the transmittance of the first image in the second area, and the fourth ratio is the transmittance of the second image in the second area. is there. The mosaicing unit 107 increases the first ratio and the fourth ratio in stages, and decreases the second ratio and the third ratio in stages, thereby transitioning in stages. Generate images sequentially.

  The mosaicking unit 107 according to this modification fades out the image by a process of gradually reducing the image transmittance. The mosaicing unit 107 fades in the image by a process of increasing the image transmittance stepwise.

  In the example shown in FIG. 8A, the first ratio in the condition (1) is the transmittance of the image α, and the second ratio in the condition (1) is the transmittance of the image β. As shown in FIG. 8A, at the start of the replacement process, the block 2 displays an image in which the image β is arranged behind the image α. Since the first ratio is 0% and the second ratio is 100% at the start of the replacement process, only the image α is displayed in the block 2. When the replacement process proceeds, the block 2 displays the image α with the increased transmittance of the image and the image β with the decreased transmittance of the image overlapped with each other. Subsequently, when the replacement process further proceeds, in block 2, the image α in which the image transmittance is further increased and the image β in which the image transmittance is further decreased are displayed in the block 2 so as to overlap each other. . Since the first ratio is 100% and the second ratio is 0% at the end of the replacement process, the image β is displayed in the block 2.

  Similarly, in the example shown in FIG. 8B, the third ratio in the condition (2) is the transmittance of the image α, and the fourth ratio in the condition (2) is the transmission of the image β. Rate. As shown in FIG. 8B, since the third ratio is 100% and the fourth ratio is 0% at the start of the replacement process, only the image β is displayed in the block 10. Yes. By changing the third ratio and the fourth ratio step by step, the third ratio is 0% and the fourth ratio is 100% at the end of the replacement process. In block 10, an image α is displayed.

  FIG. 16 is a graph showing the temporal change in the transmittance of the first image and the temporal change in the transmittance of the second image in the image replacement process by the mosaicing unit 107 according to the present modification. In the graph shown in FIG. 16, the horizontal axis represents time, and the vertical axis represents image transmittance. In the graph shown in FIG. 16, the transmittance of the image α in the block 2 is indicated by a solid line, and the transmittance of the image β in the block 2 is indicated by a broken line.

  As shown in FIG. 16, at time T0, which is the start time of the replacement process, the first ratio is 0% and the second ratio is 100%, so that only the image α is displayed in the block 2. ing. The mosaicing unit 107 sequentially generates images to be displayed on the block 2 by gradually increasing the first ratio until it reaches 100% and gradually decreasing the second ratio until it reaches 0%. To do. At time T <b> 1 shown in FIG. 16, in block 2, the image α with the increased image transmittance and the image β with the decreased image transmittance are displayed so as to overlap each other. As shown in FIG. 16, at time T2, which is the end point of the replacement process, the first ratio is 100% and the second ratio is 0%, so that the image β is displayed in block 2. The Similarly, the mosaicing unit 107 gradually increases the fourth ratio to 100% and gradually decreases the third ratio to 0%, thereby displaying an image to be displayed on the block 10. Can be generated sequentially.

  By configuring as described above, the currently displayed image can be faded out while another image can be faded in. Therefore, the user can easily specify the image to be replaced. Become.

  In this modified example, for example, after increasing the transmittance of the image α currently displayed in the block 2 in a stepwise manner, the transmittance of the image β is decreased in a stepwise manner as in the modified example. Alternatively, after the currently displayed image is faded out, a transition may be made in a stepwise manner so that another image is faded in.

(Other variations)
FIG. 9 is a schematic diagram illustrating an example of another modification of the replacement process performed by the mosaicking unit 107. The mosaicing unit 107 according to the present embodiment is configured not only to perform the above-described processing but also to perform the replacement processing with a transition display (visual effect) as illustrated in FIG. 9 when performing the replacement processing. May be. Moreover, you may comprise so that a user can select which of the process mentioned above and the process shown in FIG.

  For example, as illustrated in FIG. 9A, the mosaicking unit 107 may be configured not to sequentially generate images that transition in stages when performing the image replacement process. Further, as shown in FIG. 9B, the mosaicing unit 107 divides the area to be replaced into a plurality of areas having a longitudinal direction in the horizontal direction toward the display surface, and each divided area is divided. In this case, a configuration may be adopted in which another image is shifted to the currently displayed image in stages so as to be slotted in from the upper side toward the display surface (blind effect). Similarly, as shown in FIG. 9C, the mosaicing unit 107 divides the area to be replaced into a plurality of areas having a longitudinal direction in the vertical direction, and displays the current display in each of the divided areas. A configuration may be adopted in which a transition is made in stages so that other images are slotted in from the left side toward the display surface.

  Furthermore, as shown in FIG. 9D, the mosaicing unit 107 gradually changes from the currently displayed image to another image from the four corners of the region to the center in the region to be replaced. (Box wipe-in effect) may be configured. Further, as shown in FIG. 9E, in the area to be replaced, the mosaicking unit 107 makes a transition from the currently displayed image to another image in stages from the center of the area toward the four corners. (Box wipeout effect) may be configured.

  Further, as shown in FIG. 9F, the mosaicing unit 107 divides the area to be replaced into a plurality of rectangular areas, and in each of the divided areas, other images are displayed. A configuration may be adopted in which an image transitions in stages (checker wipe effect) so that an image is slotted in from the left side toward the display surface. Further, as illustrated in FIG. 9G, the mosaicing unit 107 divides the area to be replaced into a plurality of rectangular areas, and in each divided area, the image currently displayed is changed to another image. The image may be shifted in stages so that the image is slotted in from the top toward the display surface.

  Furthermore, as shown in FIG. 9 (h), the mosaicing unit 107 divides the region to be replaced into a plurality of regions having a longitudinal direction in the horizontal direction, and the odd-numbered regions among the divided regions. In this area, another image is slotted into the currently displayed image from the left side toward the display surface, and among the divided areas, the even-numbered area is currently displayed. A configuration may be adopted in which another image is shifted in steps so that another image is slotted in from the right side toward the display surface. Further, as shown in FIG. 9 (i), the mosaicing unit 107 divides the area to be replaced into a plurality of areas having a longitudinal direction in the vertical direction, and an odd number of the divided areas. In this area, another image is slotted into the currently displayed image from above toward the display surface, and among the divided areas, the even-numbered area is currently displayed. A configuration may be adopted in which another image is shifted in steps so that another image is slotted in from the bottom toward the display surface.

  As described above, by performing the image replacement process with various transition displays, the television 10 allows the user to easily specify the image to be replaced.

[Configuration Example of Image Display Device 10]
FIG. 14 is an external view showing a configuration example of the image display apparatus 10 according to the present embodiment. The configuration example of the image display device 10 may be, for example, the configuration illustrated in FIG. The image display device 10 illustrated in FIG. 14A is connected to the external display 40 by wireless communication. Even when the image display device 10 does not include a display (built-in display), the image display device 10 is connected to the external display 40. An image can be displayed. The connection between the image display device 10 and the external display may be a wired connection. Further, as a configuration example of the image display device 10, for example, a configuration illustrated in FIG. Since the image display device 10 in FIG. 14B includes a display (built-in display) as described in the present embodiment, the image display device 10 is also referred to as “television”. Further, as a configuration example of the image display device 10, for example, a configuration as illustrated in FIG. The image display device 10 in FIG. 14C may display an image reproduced by an external device 30 such as a DVD (Digital Versatile Disc) player.

<Embodiment 2>
In the first embodiment, the case where partial moving images obtained by dividing a single moving image are exchanged is described as an example, but the present invention is not limited to this. In the present embodiment, each of the plurality of images displayed by the image display device is a single moving image. Another embodiment of the present invention will be described below with reference to FIGS. However, unless otherwise specified, the configuration described in this embodiment is not merely intended to limit the scope of the present invention, but is merely an illustrative example.

  FIG. 10 is a block diagram showing an outline of the configuration of the display system 2 according to the present embodiment. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  As shown in FIG. 10, the display system 2 includes a television 10 a and a remote controller 20. As shown in FIG. 10, the television 10a includes a tuner unit 101a, a decoder 102a, a video buffer 103a, a scaling unit 104, a transfer unit 105, a graphic buffer 106, an image transition unit 107a, a remote control reception unit 108, and a display control unit 109. And a display 110.

  In the present embodiment, the tuner unit 101a is a tuner for receiving a broadcast program broadcast by terrestrial digital broadcast, a broadcast program broadcast by satellite broadcast, and the like, which are broadcast via different channels. This is a double tuner that can simultaneously receive two broadcast programs (a first broadcast program and a second broadcast program). Note that the tuner unit 101a may be a multi-tuner that can simultaneously receive three or more broadcast programs.

  In this embodiment, the decoder 102a decodes moving image data representing the first broadcast program received by the tuner unit 101a into a first video signal (first moving image) and a first audio signal. At the same time, the moving image data representing the second broadcast program received by the tuner unit 101a is decoded into a second video signal (second moving image) and a second audio signal. The decoder 102a sequentially stores, in the video buffer 103a, a frame image (first image) constituting the decoded first video signal and a frame image (second image) constituting the decoded second video signal. .

  In the present embodiment, the frame image of the first moving image and the frame image of the second moving image stored in the video buffer 103a are sequentially acquired by the scaling unit 104, and the first region and The scaling process is executed so that the image is displayed in the second area different from the first area.

  The graphic buffer 106 sequentially stores the frame image of the first moving image and the frame image of the second moving image by the transfer unit 105.

(Image transition unit 107a)
The image transition unit 107a sequentially acquires the frame image of the first moving image and the frame image of the second moving image stored in the graphic buffer 106, and generates a graphic plane. In addition, the image transition unit 107a performs an image replacement process according to a user instruction regarding the image replacement process indicated by the remote control signal received by the remote control reception unit.

  At this time, when the frame images are sequentially stored in the graphic buffer 106 by the transfer unit 105 in the 1V cycle, the image transition unit 107a may sequentially acquire the frame images in the 1V cycle, or may be an integer of 1V cycle. You may acquire sequentially with a double period. Further, when the frame image is sequentially stored in the graphic buffer 106 by the transfer unit 105 in a cycle that is an integral multiple of the 1V cycle, the image transition unit 107a may acquire sequentially in a cycle that is an integral multiple of the 1V cycle.

  The image transition unit 107a can acquire the frame image from the graphic buffer 106 in a cycle of 1V and execute the image replacement process, thereby realizing the image replacement process with a smooth moving image. On the other hand, the image transition unit 107a sequentially acquires the frame image from the graphic buffer 106 at a cycle that is an integer multiple of the 1V cycle, and executes the image replacement process, thereby replacing the image in the television 10a including the image transition unit 107a. The processing load can be reduced.

  When the image transition unit 107a receives a remote control signal for instructing image replacement processing, the image transition unit 107a changes the image to be displayed in the first area from the frame image of the first moving image to the frame image of the second moving image. The image to be displayed in the second area is gradually changed from the frame image of the second moving image to the frame image of the first moving image.

  That is, the image transition unit 107a generates a transition frame image that satisfies the following conditions (3) and (4).

Condition (3) The first area includes the first image in the first ratio, and the first area includes the second image in the second ratio. Condition (4) the second The region includes the first partial image at a third ratio, and the second region includes the second image at a fourth ratio. Furthermore, the image transition unit 107a includes a condition (3) The transition frame images are sequentially generated while changing the first to fourth ratios shown in (4) and (4). The image replacement process performed by the image transition unit 107a will be described later with reference to another drawing.

[Image replacement processing]
Next, image replacement processing by the image transition unit 107a will be described with reference to FIG. FIG. 11 is a diagram for explaining image replacement processing by the image transition unit 107a according to the present embodiment. FIG. 11A is a diagram showing an example of the transition of the display screen when the image transition unit 107a performs the replacement process, and FIG. 11B is a diagram for explaining the procedure of the replacement process by the image transition unit 107a. FIG.

  The television 10a according to the present embodiment has, for example, a top screen (an area for displaying a program broadcast on a currently selected broadcast channel, a first area), a channel list, as shown in FIG. The home multi-screen including the current date, the current time, and the like is displayed (region for displaying programs broadcast on other broadcast channels not currently selected, second region).

  When the television 10a is displaying the home multi-screen, the screen that the television 10a displays when receiving an instruction from the user to replace the image α displayed on the top screen and the image β included in the channel list. Transition as shown in FIG. That is, in the region where the image α is displayed (first region), the image α is slotted out downward toward the display surface, and the image β transitions from the upper direction toward the display surface. To do. In the region where the image β is displayed (second region), the image β is slotted out downward toward the display surface, and the image α is transitioned so as to slot in from the top toward the display surface. To do.

  A process performed by the image transition unit 107a in the transition of the display screen illustrated in FIG. 11A will be described with reference to FIG. As shown in FIG. 11B, at least an image α and an image β are stored in the video buffer 103b. The graphic buffer 106 stores the image α and the image β transferred by the transfer unit 105.

  The image transition unit 107a divides the image α stored in the graphic buffer 106 into an image α1 and an image α2 shown in FIG. 11B with the dividing line D1 as a boundary line. Similarly, the image transition unit 107a divides the image β stored in the graphic buffer 106 into an image β1 and an image β2 shown in FIG. 11B using the dividing line D2 as a boundary line.

  In the first region, the image transition unit 107a combines the first region by including the image α1 at the first rate and the image β2 at the second rate (the above condition (3)). Generate an image to be displayed. At this time, the image transition unit 107a combines the image α1 and the image β2 so that the image α1 is disposed below the boundary line B1 and the image β2 is disposed above the boundary line B1.

  In addition, the image transition unit 107a combines the image α2 with the third ratio and the image β1 with the fourth ratio (the above condition (4)) in the second region. An image to be displayed in the area 2 is generated. At this time, the image transition unit 107a synthesizes the image α2 and the image β1 so that the image β1 is disposed below the boundary line B2 and the image α2 is disposed above the boundary line B1.

  The image transition unit 107 a generates a transition frame image including each generated image and supplies the transition frame image to the display control unit 109.

  Subsequently, the image transition unit 107a performs the same processing while moving the dividing line D1 of the image α and the dividing line D2 of the image β stored in the graphic buffer 106 upward toward the display surface. By the above processing, the mosaicing unit 107 is a boundary line displayed in each of the block 2 and the block 10, and lowers the boundary lines B1 and B2 between the image α and the image β toward the display surface. Will be moved. By repeating the above processing, the mosaic unit 107 causes the currently displayed image to be slotted out downward toward the display surface and the other image to be slotted in from above toward the display surface. Images can be sequentially generated. The image transition unit 107a repeats the same processing while moving the dividing line D1 of the image α and the dividing line D2 of the image β stored in the graphic buffer 106 downward toward the display surface. It is configured to sequentially generate images that transition in stages so that the currently displayed image is slotted up toward the display surface and other images are slotted in from the bottom toward the display surface. Also good.

  Note that the image replacement processing performed by the image transition unit 107a according to the present embodiment is not limited to the above-described processing, and the mosaicing unit 107 shown in the modification example of the first embodiment performs the image transition unit 107a. You may comprise so that the process similar to the replacement process of an image may be performed.

  As described above, in the television 10a according to the present embodiment, even when a single moving image is replaced, the user can easily specify the image that is the target of the replacement.

<Embodiment 3>
In the first embodiment and the second embodiment, in the case where a moving image representing a broadcast program received by the tuner unit is displayed, the case where the displayed moving images are replaced is described as an example. It is not limited to. In the present embodiment, the image display device is not only a moving image representing a broadcast program received by the tuner unit, but also a moving image input from an external device, a moving image acquired by a built-in playback device, and a communication line. It is possible to display a plurality of moving images with different input methods, such as moving images acquired in this manner.

  Further embodiments of the present invention are described below with reference to FIGS. However, unless otherwise specified, the configuration described in this embodiment is not merely intended to limit the scope of the present invention, but is merely an illustrative example.

  FIG. 12 is a block diagram showing an outline of the configuration of the display system 3 according to the present embodiment. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  As shown in FIG. 12, the display system 3 includes a television 10b and a remote controller 20. 12, the television 10b includes a tuner unit 101b, a decoder 102b, a video buffer 103b, a scaling unit 104, a transfer unit 105, a graphic buffer 106, an image transition unit 107b, a remote control reception unit 108, and a display control unit 109. In addition to the display 110, an external input unit 111, a recording / playback unit 112, and a communication control unit 113 are further provided.

  The tuner unit 101b in this embodiment may be a double tuner that can simultaneously receive two broadcast programs broadcast via different channels, or can simultaneously receive three or more broadcast programs. A possible multi-tuner may be used.

  The external input unit 111 is configured so that various external devices (recording media) 30 such as a solid-state memory such as an HDD and an SD card, a disk device such as a BD (Blu-ray disc), DVD, and CD can be connected. The moving image data representing the moving image reproduced by the above is supplied to the decoder 102b.

  The recording / reproducing unit 112 records and reproduces moving image data. The recording / playback unit 112 can record moving image data representing a broadcast program and moving image data recorded on a BD / DVD / CD in a storage unit (not shown). The recording / reproducing unit 112 reproduces the moving image data recorded in the storage unit and the moving image data recorded on the BD / DVD / CD, and supplies the reproduced moving image data to the decoder 102b.

  The communication control unit 113 functions as, for example, an IP broadcast tuner unit that receives IP broadcasts. The communication control unit 113 supplies the decoder 102b with moving image data representing an IP broadcast program received by being connected to a telephone line / LAN or the like.

  In the present embodiment, the decoder 102b decodes each moving image data supplied from the tuner unit 101b, the external input unit 111, the recording / playback unit 112, and the communication control unit 113 into a video signal and an audio signal, respectively. The decoder 102b sequentially stores the frame images constituting each decoded video signal in the video buffer 103b.

  In the present embodiment, each frame image stored in the video buffer 103b is sequentially acquired by the scaling unit 104, and scaling processing is executed.

  A plurality of frame images are sequentially stored in the graphic buffer 106 by the transfer unit 105.

  The image transition unit 107b according to the present embodiment can perform a process of replacing images when a plurality of moving images having different input methods are simultaneously viewed. In the above case, the image replacement process performed by the image transition unit 107b is realized by the same process as the image transition unit 107a in the second embodiment.

  FIG. 13 is a schematic diagram illustrating an example of a screen displayed by the television 10b according to the present embodiment. The display screen shown in FIG. 13 is a selection screen for selecting a moving image to be displayed on the display 110 of the television 10b, and a plurality of moving images input to the television 10b are used as input methods for the plurality of moving images. Listed with associated names.

  The image transition unit 107b according to the present embodiment, for example, when the selection screen as shown in FIG. 13 is displayed, for example, when receiving an instruction from the user to change the arrangement order in the list of FIG. Image replacement processing can be performed.

  In the present embodiment, the image transition unit 107b displays the first frame displayed in one of the replacement target areas (first area) designated by the user among the plurality of frame images stored in the graphic buffer 106. The frame image of the moving image and the frame image of the second moving image displayed in the other region (second region) to be replaced designated by the user are sequentially acquired to generate a graphic plane. Subsequently, the image transition unit 107b performs an image replacement process according to a user instruction regarding the image replacement process indicated by the remote control signal received by the remote control reception unit. The image replacement processing performed by the image transition unit 107b is realized by the same processing as the image transition unit 107a in the second embodiment.

  As described above, in the television 10b according to the present embodiment, even when a plurality of moving images having different input methods are exchanged, the user can easily specify the image to be exchanged.

[Example of software implementation]
The control blocks (particularly the mosaicing unit 107, the image transition unit 107a, and the image transition unit 107b) of the televisions 10, 10a, and 10b are realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like. Alternatively, it may be realized by software using a CPU (Central Processing Unit).

  In the latter case, the televisions 10, 10a, and 10b include a CPU that executes instructions of a program that is software that realizes each function, and a ROM (Read Only) in which the program and various data are recorded so as to be readable by a computer (or CPU) Memory) or a storage device (these are referred to as “recording media”), a RAM (Random Access Memory) for expanding the program, and the like. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
An image display device (televisions 10, 10a, and 10b) according to aspect 1 of the present invention is an image display device that displays a plurality of images on a single screen. The transition from the image to the second image is made in stages, and the image to be displayed in the second area different from the first area is made to make a transition from the second image to the first image in stages. Transition means (mosaicizing section 107, image transition sections 107a and 107b) are provided.

  According to the above configuration, when the first image displayed in the first area and the second image displayed in the second area are switched, the first image is displayed in the first area. Transition from the first image to the second image stepwise. On the other hand, in the second area, the image to be displayed is changed in stages from the second image to the first image. That is, the transition of the image displayed in the first area is performed only in the first area, and the transition of the image displayed in the second area is performed only in the second area.

  Therefore, according to the above configuration, when an image displayed in a certain region and an image displayed in another region are interchanged with each other, the user can easily specify the image to be replaced. Become.

  In the image display device according to aspect 2 of the present invention, in the aspect 1, each of the plurality of images may be a partial moving image obtained by dividing a single moving image.

The image display device according to aspect 3 of the present invention is the image display device according to aspect 2, wherein the image display device includes a buffer (graphic buffer 106) that stores the frame image of the single moving image, and the first image, Each of the second images is one of a plurality of partial images obtained by dividing the frame image stored in the buffer, and a frame constituting the moving image generated by the transition means The image includes the first area in the first area at a first ratio, the image includes the second image in the first area at a second ratio, and the second area. In addition, the first image is included in a third ratio, and the second region is included in the second area in a fourth ratio, and the transition unit changes the ratio stepwise. ,
It is preferable.

  According to the above configuration, the image display device obtains the first image and the second image by dividing the frame image stored in the graphic buffer 106. The transition means changes the first ratio in which the first image is included in the first area and the second ratio in which the second image is included in the first area in a stepwise manner. The frame image constituting the moving image is generated so that the third ratio in which the first image is included and the fourth ratio in which the second image is included in the second region are changed stepwise.

  Therefore, according to said structure, since the image displayed on a 1st area | region and a 2nd area | region can be changed in steps, a user can specify the image used as the object of replacement easily. It becomes possible.

  In the image display device according to aspect 4 of the present invention, in the aspect 1, each of the plurality of images may be a single moving image.

  The image display device according to aspect 5 of the present invention is the image display device according to aspect 4, in which the image display device is a frame image of the first moving image that is the first image and a second image that is the second image. A buffer (graphic buffer 106) for storing a frame image of the moving image, wherein the first image is a frame image of the first moving image stored in the buffer, and the second image is The frame image of the second moving image stored in the buffer and constituting the moving image generated by the transition means has the first image in the first area. The first area includes the second image in a second ratio, the second area includes the first image in the third ratio, and the first area includes the second image. The second image is included in the second area at the fourth ratio. , The transition means, stepwise varying the ratio, it is preferable.

  According to the above configuration, the image display device is a frame image of the first moving image that is the first image stored in the graphic buffer 106 and the second image that is the second image. A frame image of a moving image is obtained. The transition means changes the first ratio in which the first image is included in the first area and the second ratio in which the second image is included in the first area in a stepwise manner. The frame image constituting the moving image is generated so that the third ratio in which the first image is included and the fourth ratio in which the second image is included in the second region are changed stepwise.

  Therefore, according to said structure, since the image displayed on a 1st area | region and a 2nd area | region can be changed in steps, a user can specify the image used as the object of replacement easily. It becomes possible.

  In the image display device according to aspect 6 of the present invention, in the aspect 3 or 5, the first area and the second area include a portion of the first image and the second image. The first ratio is the ratio of the area of the first image to the area of the first region, and the second ratio is the area of the first region, The ratio of the area of the second image, the third ratio is the ratio of the area of the first image to the area of the second region, and the fourth ratio is the ratio of the second image. The ratio of the area of the second image with respect to the area of the region, and the transition means gradually reduces the first ratio and the fourth ratio, and the second ratio and the above It is preferable to increase the third ratio stepwise.

  According to the above configuration, the transition unit gradually decreases the ratio of the area in which the first image is included in the first area, and the area of the area in which the second image is included in the first area. Increase the rate step by step. In addition, the transition unit gradually decreases the ratio of the area including the second image in the second region, and gradually decreases the ratio of the area including the first image in the second region. Raise.

  Therefore, according to said structure, since the image displayed on a 1st area | region and a 2nd area | region can be changed in steps, a user can specify the image used as the object of replacement easily. It becomes possible.

  An image display device according to an aspect 7 of the present invention is the image display apparatus according to the aspect 6, in which the transition means is located between the first image and the second image in the first region and the second region. It is preferable to move the boundary line in the vertical direction.

  According to the above configuration, in the first region, the transition means causes the displayed first image to be slotted out in one of the vertical directions, and causes the second image to be slotted in from the other in the vertical direction. In addition, the image to be displayed in the first area can be changed stepwise. Similarly, in the second area, the displayed second image is slotted out in one of the vertical directions, and the first image is displayed in the first area so as to be slotted in from the other vertical direction. It is possible to transition the image to be performed step by step.

  Therefore, according to the above configuration, it becomes easier for the user to specify the image to be replaced.

  In the image display device according to aspect 8 of the present invention, in the aspect 7, the transition means matches the horizontal display position of the first region with the horizontal display position of the second region. In this case, it is preferable that the boundary line between the first image and the second image is moved in the vertical direction in the first region and the second region.

  According to said structure, when the 1st area | region and 2nd area | region used as the object to replace are located in a line in the perpendicular direction toward the display surface, an image display apparatus is 1st area | region and 2nd area | region. In each of the regions, it is possible to make a transition in stages so that the displayed image is slotted out in one of the vertical directions and the other image to be replaced is slotted in from the other in the vertical direction.

  Therefore, according to said structure, a user can specify easily the image used as replacement object, suppressing the discomfort given to a user.

  An image display device according to an aspect 9 of the present invention is the image display apparatus according to the aspect 6, wherein the transition means includes the first image and the second image between the first image and the second image in the first region and the second region. It is preferable to move the boundary line in the horizontal direction.

  According to the above configuration, in the first region, the image display device causes the displayed first image to be slotted out in one of the horizontal directions, and causes the second image to be slotted in from the other in the horizontal direction. As described above, the image to be displayed in the first area can be changed stepwise. Similarly, in the second area, the displayed second image is slotted out in one of the horizontal directions, and the first image is displayed in the first area so as to be slotted in from the other in the horizontal direction. It is possible to transition the image to be performed step by step.

  Therefore, according to said structure, according to said structure, it becomes still easier for a user to specify the image used as the object of replacement.

  The image display device according to aspect 10 of the present invention is the image display apparatus according to aspect 9, wherein the transition means matches the vertical display position of the first region with the vertical display position of the second region. In this case, it is preferable that the boundary line between the first image and the second image is moved in the horizontal direction in the first region and the second region.

  According to said structure, when the 1st area | region and 2nd area | region used as the object to replace are located in a line with the horizontal direction toward the display surface, an image display apparatus is 1st area | region and 2nd area | region. In each of the areas, it is possible to make a transition in stages so that the displayed image is slotted out to one side in the horizontal direction and another image to be replaced is slotted in from the other side in the horizontal direction.

  Therefore, according to said structure, a user can specify easily the image used as replacement object, suppressing the discomfort given to a user.

  In the image display device according to aspect 11 of the present invention, in the aspect 3 or 5, the first ratio is the brightness of the first image in the first region, and the second ratio is the above The brightness of the second image in the first area, the third ratio is the brightness of the first image in the second area, and the fourth ratio is the brightness of the second area. And the transition means decreases the first ratio and the fourth ratio stepwise, and then calculates the second ratio and the third ratio. Increasing in stages, or increasing the first ratio and the fourth ratio in stages, and then decreasing the second ratio and the third ratio in stages. Is preferred.

  According to the above configuration, the transition means displays the image displayed in the first region so that the second image is faded in after the first image displayed in the first region is faded out. Can be shifted in stages. Similarly, in the second area, the transition means gradually displays the image displayed in the second area so as to fade in the first image after fading out the second image displayed in the second area. Transition can be made.

  Therefore, according to the above configuration, it becomes easier for the user to specify the image to be replaced.

  In the image display device according to aspect 12 of the present invention, in the aspect 3 or 5, the first ratio is the transmittance of the first image in the first region, and the second ratio is The transmittance of the second image in the first region, the third ratio is the transmittance of the first image in the second region, and the fourth ratio is the transmittance of the first image. And the transition means increases the first ratio and the fourth ratio stepwise, and the second ratio and the third ratio. It is preferable to decrease the ratio stepwise.

  According to the above configuration, the transition means causes the image displayed in the first region to fade in the second image while fading out the displayed first image in the first region. Transitions can be made in stages. Similarly, in the second area, the transition means transitions the image displayed in the second area in a stepwise manner so as to fade in the first image while fading out the displayed second image. Can be made.

  Therefore, according to the above configuration, it becomes easier for the user to specify the image to be replaced.

  A television receiver according to an aspect 13 of the present invention includes the units of the image display device according to the above aspects 1 to 12.

  An image display device control method according to a fourteenth aspect of the present invention is a method for controlling an image display device that displays a plurality of images on a single screen. A transition step in which a transition to the second image is made in stages, and an image to be displayed in a second area different from the first area is made to make a transition in stages from the second image to the first image. Is included.

  According to said structure, there exists an effect similar to said image display apparatus.

  The image display apparatus according to each aspect of the present invention may be realized by a computer. In this case, the image display apparatus is realized by a computer by causing the computer to operate as each unit included in the image display apparatus. An image display apparatus program and a computer-readable recording medium on which the program is recorded also fall within the scope of the present invention.

[Additional Notes]
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  The present invention can be suitably used for an image display device that displays a plurality of images on a single screen.

1, 2, 3 Display system 10, 10a, 10b Television (image display device)
20 Remote controller 101, 101a, 101b Tuner unit 102, 102a, 102b Decoder 103, 103a, 103b Video buffer 104 Scaling unit 105 Transfer unit 106 Graphic buffer (buffer)
107 Mosaic section (transition means)
107a, 107b Image transition unit (transition means)
108 Remote Control Reception Unit 109 Display Control Unit 110 Display 111 External Input Unit 112 Recording / Playback Unit 113 Communication Control Unit

Claims (13)

An image display device that displays a plurality of moving images on a single screen,
The image to be displayed in the first area is gradually changed from the first image to the second image, and the image to be displayed in the second area different from the first area is changed from the second image. A transition means for transitioning to the first image stepwise;
Each of the first image and the second image is one of a plurality of partial moving images obtained by dividing a single moving image into regions.
An image display device characterized by that. The frame image constituting the moving image generated by the transition means includes the first image in the first area at a first ratio, and the second image in the first area. In a second ratio, the second area includes the first image in a third ratio, and the second area includes the second image in a fourth ratio,
The transition means changes the ratio stepwise.
The image display apparatus according to claim 1. An image display device that displays a plurality of moving images on a single screen,
The image to be displayed in the first area is gradually changed from the first image to the second image, and the image to be displayed in the second area different from the first area is changed from the second image. A transition means for transitioning to the first image stepwise;
Each of the first image and the second image is a single moving image.
An image display device characterized by that. The frame image constituting the moving image generated by the transition means includes the first image in the first area at a first ratio, and the second image in the first area. In a second ratio, the second area includes the first image in a third ratio, and the second area includes the second image in a fourth ratio,
The transition means changes the ratio stepwise.
The image display device according to claim 3. The image display device displays the plurality of partial moving images as a puzzle game.
The image display device according to claim 2. The first area and the second area include a part of the first image and a part of the second image,
The first ratio is the ratio of the area of the first image to the area of the first region, and the second ratio is the ratio of the second image to the area of the first region. The third ratio is a ratio of the area of the first image to the area of the second region, and the fourth ratio is a ratio of the area of the second region. A ratio of the area of the second image,
The transition means gradually decreases the first ratio and the fourth ratio, and increases the second ratio and the third ratio in stages.
The image display device according to claim 2, wherein the image display device is an image display device.   The first ratio is the brightness of the first image in the first area, the second ratio is the brightness of the second image in the first area, and the third ratio. The ratio is the brightness of the first image in the second region, the fourth ratio is the brightness of the second image in the second region,
  The transition means increases the second ratio and the third ratio stepwise after decreasing the first ratio and the fourth ratio stepwise, or Increasing the ratio of 1 and the fourth ratio in stages, and then decreasing the second ratio and the third ratio in stages;
The image display device according to claim 2, wherein the image display device is an image display device.   The first ratio is the transmittance of the first image in the first area, the second ratio is the transmittance of the second image in the first area, and The ratio of 3 is the transmittance of the first image in the second area, and the fourth ratio is the transmittance of the second image in the second area,
  The transition means gradually increases the first ratio and the fourth ratio, and gradually decreases the second ratio and the third ratio.
The image display device according to claim 2, wherein the image display device is an image display device. And an image display device according to any one of claims 1 to 8,
A television receiver characterized by that. A control method for an image display device for displaying a plurality of moving images on a single screen,
The image to be displayed in the first area is gradually changed from the first image to the second image, and the image to be displayed in the second area different from the first area is changed from the second image. Including a transition step for stepwise transition to the first image,
Each of the first image and the second image is one of a plurality of partial moving images obtained by dividing a single moving image into regions.
And a control method for the image display device. A control method for an image display device for displaying a plurality of moving images on a single screen,
The image to be displayed in the first area is gradually changed from the first image to the second image, and the image to be displayed in the second area different from the first area is changed from the second image. Including a transition step for stepwise transition to the first image,
Each of the first image and the second image is a single moving image.
And a control method for the image display device. A display program for causing a computer to function as an image display apparatus according to any one of claims 1 to 8, the display program for causing a computer to function as each means. A computer-readable recording medium on which the display program according to claim 12 is recorded.

Images