TWI507970B - Video playback system and related computer program product for jointly displaying video with multiple screens - Google Patents

Description

A video playback system and associated computer program product for displaying a movie by a plurality of screens

The invention relates to a video playing system, in particular to a movie playing system and related computer program products for jointly displaying a movie by using multiple screens.

With the advancement of technology, portable communication devices such as smart phones, tablet computers, and handheld game consoles that can connect to the Internet and display movies have become more and more popular. In order to take into account the convenience of carrying and use, the size of the screen that the portable communication device can carry is very limited, so that a larger display screen cannot be provided for the user to watch.

In the related art, a plurality of screens may be previously connected to a host computer by signal lines to form a video-wall system that can jointly display the same movie by a plurality of screens. The video signal to be displayed on the traditional video wall system must be prepared in advance and stored in the host computer with the known number of screens and configuration. Therefore, the number, size, and placement of the screens in the video wall must be configured in accordance with the format of the movie signal in the host computer, and cannot be flexibly changed.

However, different portable communication devices may be equipped with different sized screens, and the operating system used may be different. To take advantage of the architecture of the traditional video wall system, connecting multiple portable communication devices to jointly display the same movie, it is necessary to carry on the portable The number of communication devices, the screen size, the operating system, and the placement method are limited, so that the user cannot flexibly match various portable communication devices according to preferences to jointly display the same movie. As a result, the convenience and flexibility of use will be severely reduced, and the user's acceptance and application range will be reduced.

In view of this, how to improve the convenience and flexibility of the use of a video playback system in which a plurality of screens jointly display a movie is an issue to be solved in the industry.

The present specification provides an embodiment of a video playback system for jointly displaying a movie by a plurality of screens, comprising: a plurality of portable communication devices each including at least one screen, wherein the plurality of portable communication devices include one a first portable communication device, the first portable communication device has a first screen, the first screen is one of the plurality of screens, and a position detecting circuit is configured to dynamically detect the plurality of An individual position and a pointing direction of the portable communication device; and a multi-screen display control server configured to establish a device group relationship between the plurality of portable communication devices, and according to the detection result of the position detecting circuit Dynamically generating a plurality of partial movies respectively corresponding to the plurality of non-overlapping image areas in a target movie, and transmitting the content of the plurality of partial videos to the plurality of portable communication devices, wherein the plurality of a relative position between the image areas corresponding to a relative position between the plurality of portable communication devices; wherein the multi-screen display control server controls the plurality of portable communication Utilizing the plurality of screens facing each of the plurality of local video display, a visual presentation in a joint region of the target range at least partially of the film. In addition, when the position or the pointing direction of the first portable communication device is changed, the multi-screen display control server dynamically generates an adjusted according to the changed position or the pointing direction of the first portable communication device. Partial film, and controlling the first portable communication device to display the first screen Adjusted partial movie.

The present specification further provides an embodiment of a computer program product stored in a non-transitory storage device of a multi-screen display control server for displaying a movie by a plurality of screens. When a control circuit of the multi-screen display control server executes the computer program product, the computer program product causes the multi-screen display control server to perform a multi-screen display control operation. The computer program product includes: a group setting module configured to establish a device group relationship between the plurality of portable communication devices, wherein the plurality of portable communication devices respectively comprise at least one screen, wherein the plurality of The portable communication device includes a first portable communication device, the first portable communication device has a first screen, the first screen is one of the plurality of screens, and a receiving module is configured to receive the dynamic a position detecting circuit detects the individual position and the pointing direction of the plurality of portable communication devices; a partial film providing module is configured to dynamically generate a target and a target according to the detection result of the position detecting circuit a plurality of partial videos corresponding to the plurality of non-overlapping image areas in the movie, and respectively transmitting the content of the plurality of partial videos to the plurality of portable communication devices, wherein a relative between the plurality of image regions a location corresponding to a relative position between the plurality of portable communication devices; and a display control module configured to control the plurality of portable communication devices to utilize the plurality of screens Not displaying the plurality of partial video to render the joint a visible area of the target at least partially the range of films. In addition, when the position or the direction of the first portable communication device changes, the local video providing module dynamically generates an adjusted partial video according to the changed position or the pointing direction of the first portable communication device. And the display control module controls the first portable communication device to display the adjusted partial movie by using the first screen.

One of the advantages of the above embodiments is that it allows the user to take advantage of the increasingly common variety of The portable communication device jointly displays the content of the target movie to increase the display area of the target movie, and does not limit the number of portable communication devices, the screen size, the placement position, and the type of operating system used. Such an architecture greatly enhances the ease of use and has the flexibility of a portable communication device that supports cross-platform applications.

Another advantage of the above embodiment is that the multi-screen display control server dynamically generates corresponding partial video for display by the portable communication device according to the arrangement of the portable communication device, instead of limiting the portable communication device. According to the format of the video signal generated by the multi-screen display control server, the limitation of use can be greatly relaxed, and the flexibility of the application can be improved.

Other advantages of the invention will be explained in more detail by the following description and drawings.

100‧‧‧Multi-screen video playback system

110‧‧‧Portable communication device

111, 131‧‧‧ control circuit

113, 133‧‧‧Communication circuits

115‧‧‧ screen

117‧‧‧ horn

120‧‧‧ position detection circuit

130‧‧‧Multi-screen display control server

135‧‧‧Storage device

137‧‧‧Computer Program Products

140‧‧‧Database

210‧‧‧Group Setting Module

220‧‧‧ receiving module

230‧‧‧Image Area Division Module

240‧‧‧Partial film providing module

250‧‧‧Display Control Module

320~324, 818, 902~920, 1102~1108‧‧‧ Method flow

411~414, 421~424, 431~434, 441~444‧‧‧ reference points

415‧‧‧ brand logo

425, 435, 445‧‧‧ control keys

510, 1010‧‧‧visible area of the target film

512~518, 612, 712, 1012~1018, 1212~1218, 1312~1318, 1412~1418‧‧‧ image area

520, 530, 1020, 1030‧‧‧ image objects

FIG. 1 is a simplified functional block diagram of a multi-screen movie playing system according to an embodiment of the present invention.

2 is a simplified schematic diagram of functional modules of a computer program product in the multi-display control server of FIG. 1.

FIG. 3 is a simplified flowchart of a movie playing method according to an embodiment of the present invention.

4 is a schematic diagram showing the simplified position of the portion of the portable communication device of FIG. 1 in space.

5 to 7 are simplified schematic views of different embodiments of the correspondence between the visible area of the target movie and the plurality of image areas defined by the multi-screen display control server.

8 to FIG. 9 are simplified flowcharts of a movie playing method according to another embodiment of the present invention.

10 is a simplified schematic diagram of another embodiment of a correspondence between a visible area of a target movie and a plurality of image areas defined by a multi-screen display control server.

FIG. 11 is a simplified partial flowchart of a movie playing method according to another embodiment of the present invention.

12 to 14 are simplified diagrams showing different embodiments of the correspondence between the visible area of the target movie and the plurality of image areas defined by the multi-screen display control server.

Embodiments of the present invention will be described below in conjunction with the associated drawings. In the drawings, the same reference numerals are used to refer to the same or similar elements or process steps.

1 is a simplified functional block diagram of a multi-screen video playback system 100 according to an embodiment of the present invention. The multi-screen video playback system 100 includes a plurality of portable communication devices 110, such as the plurality of portable communication devices 110-a-110-n illustrated in FIG. In addition, the multi-screen video playback system 100 further includes a location detection circuit 120, a multi-screen display controlling server 130, and a database 140. The multi-screen movie playback system 100 utilizes the portable communication devices 110-a~110-n to display the movie. The content of the target movie to be viewed by the user of the portable communication device 110-a~110-n is stored in the database 140 for access by the multi-screen display control server 130. In practice, the database 140 can be implemented by a single database, or by multiple database combinations located in the same geographical area, or by using multiple database combinations located in different geographic regions.

In the multi-screen video playback system 100, the location detection circuit 120 is configured to dynamically detect individual locations and directivity of the plurality of portable communication devices 110-a-110-n. The multi-screen display control server 130 is configured to establish a group relationship between the plurality of portable communication devices 110-a-110-n, and according to the detection result of the position detecting circuit 120, in the visible area of the target movie ( A plurality of non-overlapping image areas are defined in the range of the visible area to match the relative positions between the plurality of image areas and the relative positions of the portable communication devices 110-a to 110-n. Then, the multi-screen display control server 130 will Dynamically generating a plurality of partial video corresponding to the plurality of non-overlapping image regions, and transmitting the generated content of the plurality of partial videos to the portable communication device 110-a~110-n . The multi-screen display control server 130 controls the portable communication devices 110-a-110-n to display the plurality of partial movies, respectively, to jointly present at least a partial extent of the viewable area of the target movie.

The "visible area of the target movie" referred to in the present specification and subsequent claims refers to the entire screen range in which the target movie can be theoretically displayable at any point in time, and does not refer to the portable communication device 110. -a~110-n A collection of screen ranges actually displayed at any point in time. Therefore, the area of the visible area of the target movie may be greater than or equal to the sum of the area of the movie picture actually displayed by the portable communication device 110-a~110-n at any time point, or may be smaller than the portable communication device 110. -a~110-n The sum of the area of the movie screen actually displayed at any point in time.

In addition, the term "partial film" as used in the present specification and subsequent claims refers to a movie composed of video content of a specific image area in the visible area of the target movie.

In other words, when the portable communication devices 110-a-110-n respectively display a plurality of partial movies generated by the multi-screen display control server 130, each portable communication device 110 only displays a certain image area of the target movie. Image content.

The lowercase English indexes a~n in the component numbers and device numbers used in the present specification and drawings are merely for convenience of referring to individual components and devices, and are not intended to limit the number of the aforementioned components and devices to a specific number. In the specification and the drawings, if an element number or device number is used to indicate the index of the component number or device number, it means that the component number or device number refers to the component group or Any component or device not specified in the device group. For example, the component number 111-a refers to the control circuit 111-a, and the component number 111 refers to any control circuit that is not specific to the control circuits 111-a to 111-n. For another example, the device number 110-a refers to the portable communication device 110-a, and the device number 110 refers to any carrier that is not specific to the portable communication device 110-a~110-n. Communication device.

As shown in FIG. 1, the portable communication device 110 includes a control circuit 111, a communication circuit 113, a screen 115, and a speaker 117. The multi-screen display control server 130 includes a control circuit 131, a communication circuit 133, and a non-transitory storage device 135, wherein the storage device 135 stores a computer program product 137. The aforementioned control circuits 111 and 131 can all be implemented by one or more processor units. The foregoing communication circuits 113 and 133 can be implemented by a wired network interface, a wireless network interface, or a hybrid circuit that simultaneously integrates the foregoing two interfaces. In practice, the multi-screen display control server 130 can be implemented by a single server, or by multiple server combinations located in the same geographical area, or by multiple server combinations located in different geographical areas. In operation, the multi-screen display control server 130 can communicate with the portable communication devices 110-a~110-n via the network. The aforementioned network may be an internet or an internal network using various communication protocols.

In the multi-screen video playback system 100, it is not limited that the portable communication devices 110-a-110-n must have identical hardware specifications and use the same operating system. In addition, it is not limited that the sizes of the screens 115-a to 115-n on the portable communication devices 110-a to 110-n must be the same. In practical applications, the portable communication devices 110-a~110-n can be various portable electronic devices having a connection network function and having a screen, such as a mobile phone, a tablet computer, an e-book, or a handheld game console. and many more.

In practice, the position detecting circuit 120 can use one or more magnetic sensing circuits, ultrasonic positioning circuits, infrared sensing circuits, image sensing and identification circuits, WiFi signal positioning circuits, motion detection circuits, and indoor GPS circuits. And various object positioning circuits such as posture sensing circuits are implemented. In applications where the portable communication devices 110-a-110-n are placed on the same level, the position detection circuit 120 can be placed over all of the portable communication devices 110-a-110-n, such as ceilings. The position of the position detecting circuit 120 is higher than that of all the portable communication devices 110-a~110-n to improve the accuracy of the position detection. In the application where the portable communication devices 110-a~110-n are placed on the same vertical plane, the position detecting circuit 120 can be disposed in the area where the portable communication device 110-a~110-n is located. Front to improve the accuracy of position detection.

The computer program product 137 in the multi-screen display control server 130 may be composed of one or more application modules. For example, FIG. 2 is a simplified schematic diagram of the functional modules of the computer program product 137 of FIG. In this embodiment, the computer program product 137 includes a group setting module 210, a receiving module 220, a video area partitioning module 230, and a partial video providing module. Module) 240, and a display control module 250.

The operation of the multi-screen movie playing system 100 will be further described below in conjunction with FIGS. 3 through 7.

FIG. 3 is a simplified flowchart of a movie playing method according to an embodiment of the present invention. 4 is a schematic diagram showing the simplified position of the portion of the portable communication device of FIG. 1 in space. 5 to 7 are simplified schematic views of different embodiments of the correspondence between the visible area 510 of the target movie and the plurality of image areas defined by the multi-screen display control server 130.

In the flow chart shown in FIG. 3, the flow located in the field to which a particular device belongs is representative of the flow performed by the particular device. For example, the portion marked in the "position detection circuit" field is the flow performed by the position detecting circuit 120; the portion marked in the "multi-screen display control server" field is controlled by the multi-screen display. The flow performed by the server 130; the portion marked in the "portable communication device 110-a" field is the flow performed by the portable communication device 110-a; and labeled "other portable communication devices" The part of the field is the flow carried out by other portable communication devices 110-b~110-n. The same orchestration logic is also used in subsequent flowcharts.

When the movie playing method shown in the following flowcharts is executed, the control circuit 131 in the multi-screen display control server 130 executes the computer program product 137 to enable the multi-screen display control server 130 to perform the corresponding field. The multi-screen display control operation formed by some or all of the processes.

When the user of the portable communication device 110-a~110-n wants to watch the target movie, the portable communication devices 110-a~110-n can be placed together in any order (for example, as depicted in FIG. 5) The manner shown), and using the position detection circuit 120, performs the process 302 of FIG.

In the process 302, the location detecting circuit 120 dynamically detects the individual locations and directivity of the portable communication devices 110-a-110-n to generate individual devices with the portable communication devices 110-a-110-n. Information about location and directivity. The location detecting circuit 120 can transmit the generated information to at least one of the portable communication devices 110-a 110-n by wireless transmission.

In the multi-screen movie playback system 100, specific geometric features of the portable communication device 110, specific logos, specific components, or locations of particular regions in space may be utilized. Represents the location of the portable communication device 110 in space. Alternatively, the location of the particular geometric feature of the screen 115 of the portable communication device 110 in space may be utilized to represent the location of the portable communication device 110 in space.

For example, the location detection circuit 120 can detect and utilize a centroid location of the portable communication device 110 to represent the location of the portable communication device 110 in space. Alternatively, the position detection circuit 120 can detect and utilize the centroid position of the screen 115 to represent the position of the portable communication device 110 in space.

In practice, the position detecting circuit 120 and the portable communication device 110 can also be used to jointly calculate the position of the portable communication device 110. For example, in the embodiment of FIG. 4, the location detection circuit 120 can detect and transmit the spatial coordinates of the reference points 411-414 in the portable communication device 110-a to the portable communication device 110-a. Since the length and width of the portable communication device 110-a are given values, the portable communication device 110-a can utilize the control circuit 111-a according to the space of some or all of the reference points 411-414. The coordinates calculate the position of the centroid of the portable communication device 110-a to represent the position of the portable communication device 110-a in space.

Similarly, the location detection circuit 120 can detect and transmit the spatial coordinates of the reference points 421-424 in the portable communication device 110-b to the portable communication device 110-b. Since the length and width of the portable communication device 110-b are given values, the portable communication device 110-b can utilize the control circuit 111-b according to the space of some or all of the reference points 421~424. The coordinates calculate the position of the centroid of the portable communication device 110-b to represent the position of the portable communication device 110-b in space.

Similarly, the location detecting circuit 120 can detect and transmit the spatial coordinates of the reference points 431-434 in the portable communication device 110-c to the portable communication device 110-c, and detect and transmit the portable communication. Space coordinates of reference points 441~444 in device 110-d To the portable communication device 110-d. The foregoing location calculation method is also applicable to the portable communication device 110-c and the portable communication device 110-d.

Alternatively, the portable communication device 110 can also use the control circuit 111 to calculate the position of the centroid of the screen 115 according to the received spatial coordinates of the plurality of reference points to represent the position of the portable communication device 110 in space. For example, in the embodiment of FIG. 4, since the length and width of the portable communication device 110-a are given values, and the size of the screen 115-a and the set position in the portable communication device 110-a Also given, the portable communication device 110-a can calculate the position of the centroid Ca of the screen 115-a by using the control circuit 111-a according to the spatial coordinates of some or all of the reference points in the reference points 411-414. To represent the location of the portable communication device 110-a in space.

Similarly, since the length and width of the portable communication device 110-b are given values, and the size of the screen 115-b and the set position in the portable communication device 110-b are also given, The portable communication device 110-b can use the control circuit 111-b to calculate the position of the centroid Cb of the screen 115-b according to the spatial coordinates of some or all of the reference points 421-424 to represent the portable communication. The location of device 110-b in space. Such a location calculation method is also applicable to the portable communication device 110-c and the portable communication device 110-d.

In addition, the location detecting circuit 120 can also identify and detect the location of one or more reference objects or flags in the portable communication device 110, and compare with the positions of other reference points to determine the portable communication. The orientation of device 110 in space. For example, in the embodiment of FIG. 4, the position detecting circuit 120 can identify and detect the position of the brand mark 415 in the portable communication device 110-a, and is in part with the aforementioned reference points 411-414. The spatial coordinates of all reference points are compared to determine the directivity of the portable communication device 110-a in space. The position detecting circuit 120 can recognize The location of the control button 425 of the portable communication device 110-b is detected and compared with the spatial coordinates of some or all of the reference points 421-424 to determine the portable communication. The directivity of device 110-b in space. The position detecting circuit 120 can identify and detect the position of the control key 435 of the portable communication device 110-c, and compare with the spatial coordinates of some or all of the reference points 431 to 434. The directivity of the portable communication device 110-c in space is determined. Similarly, the position detecting circuit 120 can identify and detect the position of the control key 445 of the portable communication device 110-d and compare it with the spatial coordinates of some or all of the reference points 441-444. To determine the directivity of the portable communication device 110-d in space.

Alternatively, the position detecting circuit 120 can transmit the detection result of the position of the one or more reference objects or flags to the portable communication device 110 together with the detection result of the position of the other reference points. The portable communication device 110 uses the control circuit 111 to compare the position of the one or more reference objects or flags with the positions of other reference points to determine the directivity of the portable communication device 110 in space. Such an operation can reduce the computational burden of the position detecting circuit 120.

In the following description, the directivity of the portable communication device 110-a in space is represented by the pointing direction Da, and the directivity of the portable communication device 110-b in the space is represented by the pointing direction Db. The directivity of the portable communication device 110-c in space is represented by the pointing direction Dc, and the directivity of the portable communication device 110-d in space is represented by the pointing direction Dd. Please note that the "directivity" and "pointing direction" referred to in the present invention are description terms regarding the manner in which the portable communication device 110 is placed in the use state, and are not used to indicate the communication circuit 113 of the portable communication device 110. Signal transmission and reception direction.

For convenience of explanation, it is assumed below that the multi-screen movie playing system 100 utilizes the centroid position of the screen 115 of the portable communication device 110 to represent the position of the portable communication device 110 in space.

In operation, the position and directivity of each portable communication device 110 in space may vary due to changes in the position of the user or changes in the posture of the portable communication device 110. Therefore, the location detecting circuit 120 performs the foregoing process 302 continuously or intermittently to dynamically detect the individual locations and directivity of the portable communication devices 110-a-110-n in space, and will be portable. The information about the individual locations and directivity of the communication devices 110-a-110-n in space is transmitted by wireless transmission to one or more portable communication devices in need.

In the process 304, each portable communication device 110 can dynamically receive and record information related to the position and directivity of the portable communication device 110 in the space generated by the position detecting circuit 120 by using the communication circuit 113. In addition, the portable communication device 110 can also dynamically receive information related to individual locations and directivity of other portable communication devices in space by using the communication circuit 113 from the position detection circuit 120 or other portable communication device. And record it.

The portable communication device 110 can perform the foregoing process 304 periodically or intermittently to dynamically receive the latest information generated by the location detecting circuit 120 or other portable communication device, and update and communicate with the portable communication device 110 accordingly. Records related to individual locations and directivity in space.

In the process 306, the portable communication device 110 can be connected to the multi-screen display control server 130 via the network via the communication circuit 113 to transmit an identity authentication request to the multi-screen display control server 130. At this time, the receiving module 220 in the multi-screen display control server 130 receives the identity authentication request sent by the portable communication device 110, and the group setting mode Block 210 performs an identity authentication procedure for the portable communication device 110 and establishes a device group relationship between the portable communication devices 110-a-110-n.

When the identity authentication process is performed, the group setting module 210 may request the user of the first portable communication device 110 connected to the multi-screen display control server 130 to select or input a specific group code. For convenience of explanation, it is assumed herein that the first portable communication device 110 connected to the multi-screen display control server 130 is a portable communication device 110-a. When the other portable communication devices 110-b~110-n and the multi-screen display control server 130 perform the identity authentication process, the multi-screen display control server 130 may separately request other portable communication devices 110-b~110- nSelect or enter a group code. In an embodiment, when the group code provided by the other portable communication devices 110-b~110-n matches the specific group code provided by the portable communication device 110-a, the group setting module 210 It is determined that the portable communication devices 110-b to 110-n pass the identity authentication program, and the portable communication devices 110-a to 110-n using the same group code are set as the same device group.

Alternatively, the portable communication devices 110-a-110-n may also be implemented in the process 306 using appropriate communication circuits (eg, near field communication (NFC) circuits, Bluetooth circuits, WiFi circuits, etc.). The devices are paired with each other, and the paired information is transmitted to the multi-screen display control server 130 by one of the portable communication devices 110-a to 110-n. In an embodiment, when the receiving module 220 of the multi-screen display control server 130 receives the pairing information from one of the portable communication devices 110-a-110-n, the group setting module 210 It is determined that the portable communication devices 110-a to 110-n specified in the pairing information pass the identity authentication program, and the portable communication devices 110-a to 110-n are set to the same device group.

The group setting module 210 may also require the portable communication device 110 to provide information related to the location and directivity of the portable communication device 110 when determining the members of the aforementioned device group. In an embodiment, the group setting module 210 can only set the portable communication devices located within a predetermined range as the same device group. In this case, in addition to the foregoing identity authentication procedure, any portable communication device 110 must have a distance from the adjacent portable communication device that is less than a threshold, and the group setting module 210 The portable communication device 110 and other portable communication devices are added to the same device group.

For example, in the embodiment of FIG. 4, only if the distance between the portable communication device 110-b and the portable communication device 110-a is less than the threshold (eg, 10, 15, 20 cm), The group setting module 210 will join the portable communication device 110-b and the portable communication device 110-a to the same device group. Similarly, the group setting module 210 will only connect the portable communication device 110-c if the distance between the portable communication device 110-c and the portable communication device 110-a is less than the aforementioned threshold. The same device group is added to the portable communication device 110-a.

In addition, in the foregoing process 306, the image area dividing module 230 of the multi-screen display control server 130 may also require the portable communication device 110 in the aforementioned device group to provide the size of the screen 115 and the portable communication. Information relating to the location of the device 110 is provided to assist the image region segmentation module 230 in determining the relative position between the plurality of screens 115. For example, in the foregoing embodiment, the portable communication device 110 can provide the device model of the portable communication device 110 to the image region dividing module 230, so that the image region dividing module 230 is configured according to the device model of the portable communication device 110. Corresponding specifications, as well as information related to the position and directivity of the portable communication device 110, determine the size and position of the screen 115, and thereby calculate the number of the aforementioned device groups. The relative position between screens 115.

In the process 308, the image area dividing module 230 of the multi-screen display control server 130 is based on the number of portable communication devices in the device group and the screen area of the individual portable communication device. A corresponding number of non-overlapping image areas are defined in the visible area such that the relative positions between the plurality of image areas match the relative positions between the portable communication devices in the device group.

For convenience of description, it is assumed that the foregoing device group includes four portable communication devices 110-a~110-d, and the embodiments of the processes 308 to 324 in FIG. 3 are described with reference to FIGS. 5 to 7. .

In Figures 5 through 7, the numbers 520 and 530 represent two image objects in the target movie. As shown in FIG. 5, the image area dividing module 230 in the process 308 depends on the number of portable communication devices 110-a~110-d and the individual areas of the screens 115-a~115-d in the target movie. Four non-overlapping image areas 512, 514, 516, and 518 are defined in the visible area 510, and the relative positions between the image areas 512, 514, 516, and 518 are compared with the portable communication device 110-a-110. The relative position between -d matches.

As described above, the multi-screen movie playing system 100 in this embodiment utilizes the centroid position of the screen 115 of the portable communication device 110 to represent the position of the portable communication device 110 in space. Therefore, the relative positions between the plurality of image areas 512, 514, 516, and 518 defined by the image area dividing module 230 are also related to the screens 115-a-115 of the portable communication device 110-a~110-d. The relative position between -d matches.

As shown in FIG. 5, the image areas 512, 514, 516, and 518 are not in contact with each other, and the image areas 512, 514, 516, and 518 are spaced apart from each other, and the screens 115-a to 115-d are mutually connected. The intervals between the two are equal or proportional. In addition, the individual areas of the image areas 512, 514, 516, and 518 can be combined with the screen 115-a~ The individual areas of 115-d are equal or in a proportional relationship.

In the embodiment of FIG. 5, the sum of the areas of the image areas 512, 514, 516, and 518 is smaller than the area of the visible area 510 of the target movie, and the sum of the areas of the screens 115-a~115-d is also smaller than that of the target movie. The area of the visible area 510.

In the process 310, the partial video providing module 240 of the multi-screen display control server 130 dynamically generates the image regions 512 and 514 in the visible region 510 of the target movie according to the image region dividing result of the image region dividing module 230. 516, 4 partial films corresponding to 518.

In the process 312, the local video providing module 240 uses the communication circuit 133 to transmit the generated content of the plurality of partial videos to the portable communication device 110-a-110 in the same device group through the network. d. In this embodiment, the partial movie providing module 240 transmits the content of the partial movie corresponding to the image area 512 to the portable communication device 110-a, and transmits the content of the partial movie corresponding to the image area 514 to the The portable communication device 110-b transmits the content of the partial movie corresponding to the image area 516 to the portable communication device 110-c, and transmits the content of the partial movie corresponding to the image area 518 to the portable communication. Device 110-d.

In the process 314, the portable communication devices 110-a to 110-d receive the contents of a plurality of partial videos transmitted from the multi-screen display control server 130 by using the communication circuits 113-a to 113-d, respectively.

Next, in the process 316, the display control module 250 of the multi-screen display control server 130 controls the portable communication devices 110-a~110-d to display the plurality of partial videos by using the screens 115-a~115-d. To jointly present at least a partial extent of the visible area 510 of the target movie, such that the user can view the content of the target movie through the screens 115-a~115-d.

As described above, in the process of displaying the plurality of partial movies on the screens 115-a to 115-d, the position detecting circuit 120 and the portable communication devices 110-a to 110-d may perform the foregoing periodically or intermittently. The processes 302 and 304 dynamically update the records relating to the individual locations and directivity of the portable communication devices 110-a~110-d in space.

In the process of displaying the plurality of partial movies on the screens 115-a to 115-d, if the position or directivity of any of the portable communication devices 110 in the device group is changed, the multi-screen display control server 130 Flow 318 is performed to dynamically generate a corresponding adjusted partitioned video.

In practice, at least one of the position detecting circuit 120 or the portable communication devices 110-a-110-d can periodically or intermittently associate the portable communication devices 110-a-110-d individually or intermittently. Information related to position and directivity is transmitted to the multi-screen display control server 130. The image area dividing module 230 of the multi-screen display control server 130 can compare the newly received information with the previous record to determine whether there is any change in the position or directivity of the portable communication device 110.

Alternatively, at least one of the location detecting circuit 120 or the portable communication devices 110-a 110-d may also be portable only in any of the portable communication devices 110-a-110-d. When the position and directivity of the device change, the new location or new pointing mode of the portable communication device is transmitted to the multi-screen display control server 130. Therefore, in the process of displaying the plurality of partial movies on the screens 115-a to 115-d, when the receiving module 220 of the multi-screen display control server 130 receives the same as in the portable communication devices 110-a-110-d When new information about the location and directivity of the particular portable communication device is known, the image region dividing module 230 can know that the location or directivity of the particular portable communication device has changed.

For convenience of explanation, the following assumptions are displayed on the screens 115-a to 115-d. During the course of the movie, the position or directivity of the portable communication device 110-a changes. In the process 318, the image area dividing module 230 defines an adjusted image area corresponding to the changed position or directivity of the portable communication device 110-a in the visible area 510 of the target movie. The partial movie providing module 240 dynamically generates an adjusted partial movie corresponding to the adjusted image area.

For example, as shown in FIG. 6, if the location of the portable communication device 110-a changes but the directivity does not change, the image region dividing module 230 defines the portable communication device 110 in the visible region 510 of the target movie. -a The adjusted image area 612 corresponding to the changed position. The partial movie providing module 240 dynamically generates an adjusted partial movie corresponding to the adjusted image area 612.

For another example, as shown in FIG. 7, if the location and directivity of the portable communication device 110-a are changed, the image region dividing module 230 defines the portable communication device 110 in the visible region 510 of the target movie. a changed position and an adjusted image area 712 corresponding to the pointing direction. The partial movie providing module 240 dynamically generates an adjusted partial movie corresponding to the adjusted image area 712.

In the process 320, the local video providing module 240 uses the communication circuit 133 to transmit the content of the adjusted partial video corresponding to the adjusted image area 712 to the portable communication device 110-a via the network.

In the process 322, the portable communication device 110-a receives the content of the adjusted partial video transmitted by the multi-screen display control server 130 by using the communication circuit 113-a.

In the process 324, the display control module 250 controls the portable communication device 110-a to display the adjusted partial movie using the screen 115-a to jointly present the visible area 510 of the target movie in conjunction with the screens 115-b~115-d. At least a partial range allows the user to view the content of the target movie through the screens 115-a~115-d.

As shown in FIGS. 5-7, as the portable communication device 110-a moves, the partial movie displayed on the screen 115-a will correspond to a different image region in the visible region 510 of the target movie. The user can explore different image areas in the visible area 510 of the target movie by moving the portable communication device 110-a, and experience different movie viewing effects than before. Therefore, the multi-screen movie playing system 100 can provide users with additional video exploration fun, which is also a movie viewing experience that the traditional video wall system cannot provide.

As can be seen from the foregoing description, the multi-screen video playback system 100 can dynamically detect the position and directivity of the portable communication devices 110-a-110-d by using the position detecting circuit 120. The computer program product 137 in the multi-screen display control server 130 dynamically generates corresponding signals according to the relative positions between the portable communication devices 110-a to 110-d and the individual areas of the screens 115-a to 115-d. A plurality of partial movies are displayed on screens 115-a to 115-d, respectively. In addition, in the process of displaying the plurality of partial movies on the screens 115-a-115-d, if the position or directivity of any of the portable communication devices 110-a-110-d is changed, The multi-screen display control server 130 also dynamically generates a corresponding adjusted partial movie and displays it on the screen of the portable communication device.

Thus, the multi-screen movie playback system 100 can support a combination of various portable communication devices without limiting the number of portable communication devices, the screen size, the placement location, and the type of operating system being used. Such an architecture not only effectively increases the display area of the target movie, but also provides excellent usability and flexibility of device combination.

In practice, the multi-screen video playing system 100 can dynamically generate content of a plurality of partial videos to be displayed on the screens 115-a to 115-d according to the detection result of the position detecting circuit 120, and can also be used according to the use. The control command issued by the user dynamically changes the contents of the plurality of partial movies displayed on the screens 115-a to 115-d.

The operation of the multi-screen movie playing system 100 will be further described below in conjunction with FIGS. 8 through 9.

8 to FIG. 9 are simplified flowcharts of a movie playing method according to another embodiment of the present invention.

The flows 302 to 316 in FIG. 8 are all the same as the processes 302 to 316 in FIG. 3 described above, and therefore, the descriptions of the embodiments and related advantages of the processes 302 to 316 in the foregoing FIG. 3 are also applicable to the embodiment of the way 8. in. For the sake of brevity, the description will not be repeated here.

In the process of displaying a plurality of partial videos generated by the multi-screen display control server 130 on the screens 115-a to 115-d, the user can carry any of the portable communication devices 110-a~110-d. The communication device 110, or a preselected one of the portable communication devices 110, issues a playback control command to adjust the image content displayed on the screens 115-a to 115-d. In practice, the foregoing play control command may be a movie fast forward command, a movie reverse command, a pause play command, a movie zoom command, or a movie move command.

For convenience of explanation, it is assumed below that the user issues a playback control command to the portable communication device 110-a. At this time, the portable communication device 110-a performs the flow 818 in FIG. 8 to receive the playback control command input by the user.

Next, the portable communication device 110-a performs the flow 902 of FIG. 9 to transmit the received playback control command to the multi-screen display control server 130 via the network using the communication circuit 113-a.

In this embodiment, in the process of displaying the plurality of partial movies on the screens 115-a to 115-d, if the user changes the position of the portable communication device 110-a, the portable communication device 110-a is caused. The distance between the position detecting circuit 120 and the position detecting circuit 120 changes, and the control circuit 111-a of the portable communication device 110-a generates a film zooming instruction. For example, if the user places the position of the portable communication device 110-a toward the position detecting circuit 120 To move, and shorten the distance between the portable communication device 110-a and the position detecting circuit 120, the control circuit 111-a of the portable communication device 110-a generates a film enlargement command. On the other hand, if the user moves the position of the portable communication device 110-a away from the position detecting circuit 120, and increases the distance between the portable communication device 110-a and the position detecting circuit 120, The control circuit 111-a of the portable communication device 110-a generates a video reduction command. In other words, the multi-screen movie playback system 100 allows the user to issue a zoom command by adjusting the distance between the portable communication device 110 and the position detecting circuit 120.

In the process 904, the receiving module 220 of the multi-screen display control server 130 receives the playback control command from the portable communication device 110.

In flow 906, display control module 250 determines the type of playback control command. If the playback control command belongs to the first type of command, the multi-screen display control server 130 proceeds to flow 908. If the playback control command belongs to the second type of command, the multi-screen display control server 130 proceeds to flow 914. In the present embodiment, the foregoing first type of instruction refers to a control instruction that does not require the multi-screen display control server 130 to reproduce a plurality of partial movies, for example, a movie fast-forward instruction, a movie reversal instruction, or a pause playback instruction. The aforementioned second type of instructions refer to control instructions that require the multi-screen display control server 130 to regenerate a plurality of partial movies, such as a movie zoom instruction or a movie move instruction.

In flow 908, display control module 250 utilizes communication circuit 133 to forward the playback control command to portable communication devices 110-a-110-d via the network.

In the process 910, the portable communication devices 110-a to 110-d receive the playback control commands transmitted from the multi-screen display control server 130 by using the communication circuits 113-a to 113-d, respectively.

In the process 912, the control circuits 111-a~111-d of the portable communication devices 110-a~110-d respectively control the display operations of the screens 115-a~115-d according to the playback control command to jointly The result of the operation of the playback control command is presented. For example, if the play control command is a movie fast-forward command, the control circuits 111-a~111-d synchronize the videos displayed on the fast-forward screens 115-a~115-d according to the play control command to jointly present the movie. The process of turning.

For another example, if the play control command is a movie reversal command, the control circuit 111-a~111-d synchronously reverses the video displayed on the screens 115-a~115-d according to the play control command to jointly present the movie reversed. process.

For another example, if the play control command is a pause play command, the control circuits 111-a~111-d synchronously pause the display actions of the screens 115-a~115-d according to the play control command to jointly display the paused play of the movie. status.

For convenience of explaining other flows 914 to 920 in FIG. 9, it is assumed below that the playback control command is a movie enlargement instruction.

In the process 914, the image area dividing module 230 according to the playback control command, the number of portable communication devices 110-a~110-d, and the individual areas of the screens 115-a~115-d, in the target movie Four non-overlapping image areas are redefined in the viewable area, and the relative positions between the image areas are matched with the relative positions between the portable communication devices 110-a to 110-d.

Since the playback control command is a movie enlargement command, the image region dividing module 230 may perform an interpolation operation on the image content of the visible region 510 of the target movie in the flow 914 to form an enlargement as shown in FIG. The rear visible area 1010. In viewable area 1010, image objects 1020 and 1030 are magnified versions of image objects 520 and 530, respectively, in viewable area 510 of FIG.

Similarly, the image area dividing module 230 defines 4 in the visible area 1010 of the target movie according to the number of portable communication devices 110-a~110-d and the individual areas of the screens 115-a~115-d. Non-overlapping image areas 1012, 1014, 1016, and 1018, and the relative positions between the image areas 1012, 1014, 1016, and 1018 are consistent with the relative positions of the portable communication devices 110-a~110-d .

As shown in FIG. 10, the image areas 1012, 1014, 1016, and 1018 are not in contact with each other, and the image areas 1012, 1014, 1016, and 1018 are spaced apart from each other, and the screens 115-a-115-d may be mutually connected. The intervals between the two are equal or proportional. In addition, the individual areas of the image areas 1012, 1014, 1016, and 1018 may be equal to, or in a proportional relationship with, the individual areas of the screens 115-a-115-d.

Then, the partial video providing module 240 dynamically generates four partial movies corresponding to the image areas 1012, 1014, 1016, and 1018 in the visible area 1010 of the target movie according to the image area dividing result of the image area dividing module 230.

In the process 916, the local video providing module 240 uses the communication circuit 133 to transmit the generated content of the plurality of partial movies to the portable communication devices 110-a to 110-d via the network. In this embodiment, the partial movie providing module 240 transmits the content of the partial movie corresponding to the image area 1012 to the portable communication device 110-a, and transmits the content of the partial movie corresponding to the image area 1014 to the The portable communication device 110-b transmits the content of the partial movie corresponding to the image area 1016 to the portable communication device 110-c, and transmits the content of the partial movie corresponding to the image area 1018 to the portable communication. Device 110-d.

In the process 918, the portable communication devices 110-a to 110-d receive the contents of a plurality of partial videos transmitted from the multi-screen display control server 130 by using the communication circuits 113-a to 113-d, respectively.

Next, in the process 920, the display control module 250 of the multi-screen display control server 130 controls the portable communication devices 110-a~110-d to display the plurality of partial videos by using the screens 115-a~115-d, respectively. To jointly present at least a partial range of the visible area 1010 of the target movie, so that the user can view the enlarged content of the target movie through the screens 115-a~115-d.

It can be seen from the foregoing description that when the user issues a play control command to one of the portable communication devices 110-a~110-d, the multi-screen display control server 130 interlocks the adjustment screen 115 according to the type of the play control command. -a~115-d The image displayed.

In the foregoing embodiment of FIG. 9, the action of determining the type of the playback control command is performed by the multi-screen display control server 130. In fact, the action of determining the type of the playback control command may be changed to the portable communication device 110. Come on.

For example, FIG. 11 is a simplified partial flowchart of a movie playing method according to another embodiment of the present invention. The movie playing method shown in FIG. 11 is a variation of the movie playing method shown in FIG.

In the embodiment of FIG. 11, after the portable communication device 110-a completes the foregoing process 818 in FIG. 8, the control circuit 111-a of the portable communication device 110-a performs the flow 1102 in FIG. To determine the type of the playback control command. If the playback control command belongs to the first type of command, the portable communication device 110-a performs flow 1104. If the playback control command belongs to the second type of command, the portable communication device 110-a performs flow 1106. As with the previous embodiments, the first type of instructions referred to herein refers to control instructions that do not require the multi-screen display control server 130 to regenerate multiple partial movies, such as a movie fast-forward command, a movie reversal command, or a pause. Play the command. The aforementioned second type of instruction refers to the need for the multi-screen display control server 130 to be regenerated. Control instructions for multiple partial movies, such as movie zoom instructions or movie move instructions.

In flow 1104, control circuit 111-a will forward the playback control command to other portable communication devices 110-b-110-d in the same device group using communication circuit 113-a.

In the flow 1106, the control circuit 111-a transmits the playback control command to the multi-display control server 130 via the network using the communication circuit 113-a.

In the process 1108, the receiving module 220 of the multi-screen display control server 130 receives the playback control command from the portable communication device 110. In this embodiment, the playback control commands received by the receiving module 220 are all the second type of instructions.

The other processes 912 to 920 in FIG. 11 are the same as the processes 912 to 920 in FIG. 9 described above. Accordingly, the description of the operation of the flows 912 through 920 and related advantages in the aforementioned FIG. 9 also applies to the embodiment of FIG.

In addition, in the foregoing embodiment, when the location of the portable communication device 110 is changed, the multi-screen display control server 130 dynamically generates a corresponding adjusted partial movie and displays it on the portable communication device. on the screen. However, this is only an embodiment and is not intended to limit the actual implementation of the invention. For example, in the process of displaying a plurality of partial movies on the screens 115-a to 115-d, if the position of the portable communication device 110-b is changed, the portable communication device 110-b and the portable communication device 110 are caused to be caused. If the distance between -a exceeds the aforementioned threshold, the display control module 250 of the multi-screen display control server 130 can release the portable communication device 110-b from the other portable communication devices 110-a, 110-c, And the device group relationship between 110 and d, and controls the portable communication device 110-b to stop displaying the movie. As a result, the multi-screen video playback system 100 will only continue to display the destination using the remaining three portable communication devices 110-a, 110-c, and 110-d. The partial content of the movie is marked, and when the user subsequently issues a playback control command to one of the portable communication devices 110-a, 110-c, and 110-d, the multi-screen display control server 130 only links The image frames displayed by the portable communication devices 110-a, 110-c, and 110-d are adjusted without adjusting the image frame of the portable communication device 110-b.

In the foregoing embodiment, the plurality of image regions defined by the image region dividing module 230 are spaced apart from each other without contacting each other, but this is only an embodiment and is not intended to limit the actual implementation of the present invention.

For example, FIG. 12 is a simplified schematic diagram of another embodiment of the correspondence between the visible area 510 of the target movie and the plurality of image areas defined by the multi-screen display control server 130. In the embodiment of FIG. 12, the image area dividing module 230 can be based on the number of portable communication devices 110-a~110-d and the individual areas of the screens 115-a~115-d in the foregoing process 308. Defining four non-overlapping image areas 1212, 1214, 1216, and 1218 in the visible area 510 of the target movie, and making relative positions between the image areas 1212, 1214, 1216, and 1218, and the portable communication device The relative positions between 110-a and 110-d match.

As shown in FIG. 12, the image areas 1212, 1214, 1216, and 1218 are in contact with each other. In addition, the individual areas of the image areas 1212, 1214, 1216, and 1218 may be equal to, or in a proportional relationship with, the individual areas of the screens 115-a-115-d.

In addition, in the foregoing embodiment, the total area of the plurality of image areas defined by the image area dividing module 230 may be smaller than the area of the visible area of the target film, but this is only an embodiment, and is not limited to the actual practice of the present invention. Implementation.

For example, FIGS. 13-14 are simplified embodiments of the correspondence between the visible area 510 of the target movie and the plurality of image areas defined by the multi-screen display control server 130. Schematic diagram.

In the embodiment of FIG. 13, the image areas 1312, 1314, 1316, and 1318 defined by the image area dividing module 230 are not in contact with each other, and the image areas 1312, 1314, 1316, and 1318 are spaced apart from each other. The intervals from the screens 115-a to 115-d are equal to each other or in a proportional relationship. Moreover, the sum of the areas of the image areas 1312, 1314, 1316, and 1318 may be greater than or equal to the area of the viewable area 510 of the target movie.

In the embodiment of FIG. 14, the image areas 1412, 1414, 1416, and 1418 defined by the image area dividing module 230 are in contact with each other, and the sum of the areas of the image areas 1412, 1414, 1416, and 1418 may be greater than or Equal to the area of the visible area 510 of the target movie.

It can be seen from the foregoing description that the multi-screen movie playing system 100 allows the user to jointly display the content of the target movie by using various portable communication devices, which are more and more popular, to increase the display area of the target movie, and is not limited to the portable communication device. The number, screen size, placement, and type of operating system used. Such an architecture greatly enhances the ease of use and has the flexibility of a portable communication device that supports cross-platform applications.

In addition, the multi-screen display control server 130 dynamically generates a corresponding partial video for display by the portable communication device according to the arrangement of the portable communication device, and the non-limited portable communication device is controlled according to the multi-screen display. The format of the video signal generated by the server 130 is arranged, so that the limitation of use can be greatly relaxed, and the flexibility of the application can be improved.

Certain terms are used throughout the description and claims to refer to particular elements. However, those of ordinary skill in the art should understand that the same components can be used. Can be called by different nouns. The specification and the scope of patent application do not use the difference in name as the way to distinguish the components, but the difference in function of the components as the basis for differentiation. The term "including" as used in the specification and the scope of the patent application is an open term and should be interpreted as "including but not limited to". In addition, "coupled" includes any direct and indirect means of attachment herein. Therefore, if the first element is described as being coupled to the second element, the first element can be directly connected to the second element by electrical connection or wireless transmission, optical transmission or the like, or by other elements or connections. The means is indirectly electrically or signally connected to the second component.

The description of "and/or" as used herein includes any combination of one or more of the listed items. In addition, the terms of any singular are intended to include the meaning of the plural, unless otherwise specified in the specification.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the claims of the present invention are intended to be within the scope of the present invention.

100‧‧‧Multi-screen video playback system

110‧‧‧Portable communication device

111, 131‧‧‧ control circuit

113, 133‧‧‧Communication circuits

115‧‧‧ screen

117‧‧‧ horn

120‧‧‧ position detection circuit

130‧‧‧Multi-screen display control server

135‧‧‧Storage device

137‧‧‧Computer Program Products

140‧‧‧Database

Claims (16)

A video playback system for jointly displaying a movie by using a plurality of screens, comprising: a plurality of portable communication devices each including at least one screen, wherein the plurality of portable communication devices include a first portable communication The first portable communication device has a first screen, the first screen is one of the plurality of screens, and a position detecting circuit is configured to dynamically detect the individual of the plurality of portable communication devices Position and directivity, and transmitting information related to the detection result to at least one of the plurality of portable communication devices by wireless transmission; and a multi-screen display control server configured to establish the plurality of a device group relationship between the portable communication devices, and dynamically generating a plurality of partial videos corresponding to the plurality of non-overlapping image regions in a target movie according to the detection result of the position detection circuit, and The content of the plurality of partial videos is respectively transmitted to the plurality of portable communication devices, wherein a relative position between the plurality of image regions corresponds to between the plurality of portable communication devices a relative position; wherein the multi-screen display control server controls the plurality of portable communication devices to display the plurality of partial movies by using the plurality of screens to jointly present at least a partial range of a visible area of the target movie; When the position or directivity of the first portable communication device changes, the multi-screen display control server dynamically generates an adjusted according to the changed position or directivity of the first portable communication device. a partial video, and controlling the first portable communication device to display the adjusted partial movie by using the first screen; wherein, in the process of displaying the plurality of partial videos on the plurality of screens, if the first portable The position of the communication device changes, resulting in the first portable communication device and The distance between the position detecting circuits is changed, and the first portable communication device generates a film zooming instruction; wherein, in the process of displaying the plurality of partial videos on the plurality of screens, if the multi-screen display control servo Receiving the movie zoom instruction generated by the first portable communication device, the multi-screen display control server dynamically generates a plurality of adjusted partial movies respectively corresponding to the plurality of image regions, and controls the The plurality of portable communication devices respectively display the plurality of adjusted partial movies by using the plurality of screens to jointly present an operation result of the movie zoom instruction. The video playing system of claim 1, wherein, in the process of displaying the plurality of partial videos on the plurality of screens, if the multi-screen display control server receives the first one generated by the first portable communication device a class control command, the multi-screen display control server transmits the first type of control command to other portable communication devices of the plurality of portable communication devices, and the plurality of portable communication devices according to the The first type of control instruction controls a display operation of the plurality of screens to jointly present an operation result of the first type of control instruction; wherein the first type of control instruction comprises a movie fast-forward instruction, a movie reversal instruction, or a pause Play the command. The video playback system of claim 1, wherein, in the process of displaying the plurality of partial videos on the plurality of screens, if the first portable communication device receives a first type of control command input by a user, The first portable communication device transmits the first type of control command to other portable communication devices of the plurality of portable communication devices, and the plurality of portable communication devices are controlled according to the first type The instruction controls a display operation of the plurality of screens to jointly present an operation result of the first type of control instruction; wherein the first type of control instruction includes a movie fast forwarding instruction and a movie reversal instruction , or a pause to play the command. The video playback system of claim 1, wherein the plurality of portable communication devices further comprise a second portable communication device, and the plurality of screens further comprise a second portable communication device a second screen; wherein, if the distance between the second portable communication device and the first portable communication device is less than a threshold, the multi-screen display control server will The second portable communication device and the first portable communication device join the same device group. The video playback system of claim 1, wherein the plurality of portable communication devices further comprise a second portable communication device, and the plurality of screens further comprise a second portable communication device a second screen; wherein, in the process of displaying the plurality of partial movies on the plurality of screens, if the location of the second portable communication device changes, the second portable communication device and the first The distance between the portable communication devices is greater than a threshold value, and the multi-screen display control server controls the second portable communication device to stop displaying the movie. The video playback system of claim 1, wherein the detection result of the position detection circuit is transmitted to the multi-screen display control via the position detection circuit or at least one of the plurality of portable communication devices server. The video playback system of claim 1, wherein a total area of the plurality of image areas is smaller than an area of the visible area of the target movie. The movie playing system of claim 1, wherein the sum of the areas of the plurality of screens is smaller than the area of the visible area of the target movie. A computer program product stored in a non-transitory storage device of a multi-screen display control server that displays a movie by a plurality of screens, when the multi-screen display controls When a control circuit of the server executes the computer program product, the multi-screen display control server performs a multi-screen display control operation, and the computer program product includes: a group setting module configured to establish a plurality of portable types a device group relationship between the communication devices, the plurality of portable communication devices respectively including at least one screen, wherein the plurality of portable communication devices include a first portable communication device, the first portable device The communication device has a first screen, the first screen is one of the plurality of screens; and a receiving module is configured to dynamically receive an individual position and directivity of the position detecting circuit for the plurality of portable communication devices a detection result; a partial video providing module configured to dynamically generate a plurality of partial videos respectively corresponding to the plurality of non-overlapping image regions in a target movie according to the detection result of the position detecting circuit, and The content of the plurality of partial videos is respectively transmitted to the plurality of portable communication devices, wherein a relative position between the plurality of image regions corresponds to the plurality of portable channels a relative position between the devices; and a display control module configured to control the plurality of portable communication devices to respectively display the plurality of partial movies using the plurality of screens to jointly present at least a portion of a visible area of the target movie a range; wherein, when the position or directivity of the first portable communication device changes, the local video providing module dynamically generates an adjusted according to the changed position or directivity of the first portable communication device. a partial movie, and the display control module controls the first portable communication device to display the adjusted partial movie by using the first screen; wherein, in the process of displaying the plurality of partial movies on the plurality of screens, The position of the first portable communication device changes, resulting in the first portable communication device and The distance between the position detecting circuits is changed, and the receiving module receives a film zooming instruction generated by the first portable communication device; wherein, in the process of displaying the plurality of partial videos on the plurality of screens, If the receiving module receives the movie zooming instruction generated by the first portable communication device, the local video providing module dynamically generates a plurality of adjusted partial movies respectively corresponding to the plurality of image regions, and the The display control module controls the plurality of portable communication devices to respectively display the plurality of adjusted partial movies by using the plurality of screens to jointly present an operation result of the movie zoom instruction. The computer program product of claim 9, wherein, in the process of displaying the plurality of partial videos on the plurality of screens, if the receiving module receives a first type of control command generated by the first portable communication device, The display control module transmits the first type of control command to other portable communication devices of the plurality of portable communication devices, and the plurality of portable communication devices control the first type of control command according to the first type of control The display operation of the plurality of screens is to jointly present the operation result of the first type of control instruction; wherein the first type of control instruction comprises a movie fast forwarding instruction, a movie reversal instruction, or a pause playback instruction. The computer program product of claim 9, wherein the plurality of portable communication devices further comprise a second portable communication device, and the plurality of screens further comprise a second portable communication device a second screen; wherein the group setting module performs the second only if the distance between the second portable communication device and the first portable communication device is less than a threshold The portable communication device and the first portable communication device join the same device group. The computer program product of claim 9, wherein the plurality of portable communication devices are A second portable communication device is included, and the plurality of screens further include a second screen disposed on the second portable communication device; wherein the plurality of partial videos are displayed on the plurality of screens If the location of the second portable communication device changes, and the distance between the second portable communication device and the first portable communication device is greater than a threshold, the display control module controls the The second portable communication device stops displaying the movie. The computer program product of claim 9, wherein the receiving module receives the detection result of the position detecting circuit via the position detecting circuit or at least one of the plurality of portable communication devices. The computer program product of claim 9, wherein the sum of the areas of the plurality of image areas is smaller than the area of the visible area of the target film. The computer program product of claim 14, further comprising: an image area dividing module configured to define the plurality of non-overlapping image areas in the range of the visible area according to the detection result of the position detecting circuit, and The relative position between the plurality of image areas is matched with the relative position between the plurality of portable communication devices. The computer program product of claim 9, wherein the sum of the areas of the plurality of screens is smaller than the area of the visible area of the target movie.