Patent Publication Number: US-2003222833-A1

Title: Information processing apparatus and object display method employed in the same apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001] This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2002-159517, filed May 31, 2002.  
       BACKGROUND OF THE INVENTION  
       [0002] 1. Field of the Invention  
       [0003] The present invention relates to an information processing apparatus such as a mobile phone and a PDA (Personal Digital Assistant), and to an object display method employed in the same apparatus.  
       [0004] 2. Description of the Related Art  
       [0005] In recent years, with the development of information processing technology and wireless communication technology, various apparatuses have been proposed. For example, portable information processing apparatuses such as mobile (cellular) phones and PDAs (Personal Digital Assistants) have come into wide use. These kinds of portable information processing apparatus can display various contents such as text, images, and the like. However, portable information processing apparatuses require miniaturization; for this reason, the display screen size (display resolution) mountable thereto is relatively small. As a result, the information content displayable at any one time is inevitably limited.  
       [0006] Japanese Patent Application KOKAI Publication No. 2000-278373 discloses a portable electronic apparatus including a plurality of display units for falsely making large the display screen size. The portable electronic apparatus includes an open/close panel, which is attached to the apparatus main body so that it can be freely opened and closed. The open/close panel includes a display unit at each of its front and back sides. In a state that the open/close panel is opened, the display unit provided at the back side of the open/close panel is arranged parallel with a display unit provided on the apparatus main body. Mutually different information is simultaneously displayed on the display units, and thereby, it is possible to falsely make large the display screen size.  
       [0007] Recently, electronic commerce services using the Internet, such as online shopping and virtual malls, have come into wide use. Image data relevant to objects such as goods are downloaded from a server to the portable information processing apparatus, and thereby, users can confirm the appearance of the object on the display screen of the information processing apparatus.  
       [0008] However, the object displayed on the display screen of the portable information processing apparatus is usually a two-dimensional image. For this reason, the user has difficulty accurately grasping the actual solid shape of the object from the image displayed on the display screen.  
       [0009] In this case, there is known a 3-D technique of displaying a three-dimensional image on the display screen. According to the above 3-D technique, a pseudo-solid display is realized by taking advantage of illusions created in the human visual sensory system. The pseudo-solid display causes distortion in the shape of the displayed object. For this reason, even if the above 3-D technique is used, it is difficult for the user to accurately grasp the ratio of width, depth, and height of the actual object from the 3-D image displayed on the display screen.  
       [0010] Therefore, it is required to realize a novel structure for displaying the shape of the object without distortion so that the user can accurately grasp the ratio of width, depth, and height of the actual object from the image displayed on the display screen.  
       BRIEF SUMMARY OF THE INVENTION  
       [0011] It is an object of the present invention to provide an information processing apparatus, which can display the shape of an object without causing distortion, and to an object display method.  
       [0012] According to an embodiment of the present invention, there is provided an information processing apparatus capable of displaying contents data, the contents data including a first image data and a second image data when viewing an object from a first direction and a second direction, respectively, comprising: an apparatus main body; a multi-view display device including at least a first display unit and a second display unit provided individually at a first face and a second face, respectively, of the apparatus main body; and control means for displaying the first image data and the second image data on the first display unit and the second display unit, respectively, of the multi-view display device.  
       [0013] Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter. 
     
    
    
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING  
     [0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention, and together with the general description given above and the detailed description of the embodiments given below, serve to explain the principles of the invention.  
     [0015]FIG. 1 is a perspective view showing the external appearance of an information processing apparatus main body according to one embodiment of the present invention when viewing from the front side;  
     [0016]FIG. 2 is a perspective view showing the external appearance of the information processing apparatus main body shown in FIG. 1 when viewing from the rear side;  
     [0017]FIG. 3 is a perspective view showing the external appearance of the information processing apparatus main body shown in FIG. 1 when viewing from the bottom side;  
     [0018]FIG. 4 is a view showing a state that document data is displayed on a rear side display unit provided in the information processing apparatus main body shown in FIG. 1;  
     [0019]FIG. 5 is a block diagram showing the system configuration of the information processing apparatus shown in FIG. 1;  
     [0020]FIG. 6 is a view showing a data format of contents received by the information processing apparatus shown in FIG. 1 via a network;  
     [0021]FIG. 7 is a block diagram showing the configuration of a polyhedron display control unit provided in the information processing apparatus shown in FIG. 1;  
     [0022]FIG. 8 is a flowchart showing the procedure of contents data processing executed by the information processing apparatus shown in FIG. 1;  
     [0023]FIG. 9 is a flowchart showing the procedure of display image reduction processing executed by the information processing apparatus shown in FIG. 1;  
     [0024]FIG. 10 is a view showing a data format of contents with document data received by the information processing apparatus shown in FIG. 1 from a network; and  
     [0025]FIG. 11 is a flowchart showing the procedure of display processing of the contents with document data executed by the information processing apparatus shown in FIG. 1. 
    
    
     DETAILED DESCRIPTION  
     [0026] An embodiment of the present invention will be described below with reference to the accompanying drawings.  
     [0027]FIG. 1 and FIG. 2 are perspective views showing the external appearance of an information processing apparatus according to one embodiment of the present invention when viewing from the front and rear sides, respectively. The above information processing apparatus is a portable information processing apparatus, such as a mobile phone and PDA. In the following, the structure and configuration of the information processing apparatus will be described on the assumption that the apparatus is realized as a mobile phone.  
     [0028] A mobile phone  1  is used as a mobile station, which performs the transmission and reception of voice/data with the base station by radio. The mobile phone  1  has a contents display function in addition to a voice/data communication function. The contents display function is a function of downloading various contents data from a server providing content delivery service, and displaying the contents data.  
     [0029] As illustrated in FIG. 1, a voice input microphone  111 , a voice output speaker  112 , and a key input unit  113  are arranged on the front side of the main body of the mobile phone  1 .  
     [0030] The key input unit  113  comprises a dial key input unit  114  including a plurality of buttons, and a function key group  115 . The function key group  115  comprises a power on (off hook) button  116 , a power off (on hook) button  117 , a cursor button  118  and an enter button  119 .  
     [0031] Further, the mobile phone  1  includes a front side display unit  131 , a right side display unit  132 , and a top side display unit  133 . These display units  131 ,  132 , and  133  are respectively arranged on the front, right, and top sides of the main body.  
     [0032] As shown in FIG. 2, the mobile phone  1  further includes a left side display unit  134  and a rear side display unit  135 . These display units  134  and  135  are respectively arranged on the left and rear sides of the main body. In addition, a camera unit  141  is arranged on the rear side of the main body.  
     [0033] The above five display units  131  to  135  constitute a rectangular-shaped multi-view display device  120 . The multi-view display device  120  is a polyhedron display device having a plurality of display screens. The multi-view display device  120  is provided with transparent plates  121  to  125  comprising a transparent glass or acrylic plate at the front, right, top, left and rear sides. The transparent plates  121  to  125  are positioned on each display screen of the front side, right side, top side, left side, and rear side display units  131  to  135 . The transparent plates  121  to  125  individually have a rectangular shape, and also, the display units  131  to  135  individually have a rectangular shape.  
     [0034] That is, the multi-view display device  120  has a transparently rectangular-shaped housing, and has the structure in which five sides, that is, the front, right, top, left, and rear sides are individually provided with each display screen of the display units  131  to  135 .  
     [0035] As illustrated in FIG. 3, the mobile phone  1  further includes a bottom display unit  136 , which is arranged on the bottom side of the main body. A transparent plate  126  is provided on the display screen of the bottom display unit  136  so as to cover the entire bottom of the mobile phone main body  1 . The bottom display unit  136  functions as one unit constituting the multi-view display device  120 , as well as the above front, right, top, left, and rear side display units  131  to  135 .  
     [0036] Each of the display units  131  to  136  comprises a flat panel display such as an LCD (Liquid Crystal Display), for example. Of the above display units  131  to  136 , the front side display unit  131  functions as the main display of the mobile phone  1 .  
     [0037] The following is a description of an example of displaying a shape of an object from multiple viewpoints by utilizing the display units  131  to  136 .  
     [0038] In an embodiment of the present invention, the object multi-view display is to display contents data on each of the display units  131  to  136  in a state where the display angle view has changed. In the object multi-view display, image data when viewing a certain object from its front, right, top, left, rear, and bottom sides are simultaneously displayed on individual display units  131  to  136 .  
     [0039] More specifically, the front side display unit  131  is used to display the image data when viewing the object from the front side. Likewise, the right side display unit  132  is used to display the image data when viewing the object from the right side, and the top side display unit  133  is used to display the image data when viewing the object from the top side. Likewise, the left side display unit  134  is used to display the image data when viewing the object from the left side, and the rear side display unit  135  is used to display the image data when viewing the object from the rear side. Finally, the bottom side display unit  136  is used to display the image data when viewing the object from the bottom side.  
     [0040] Incidentally, it is not necessary to always display all six sides of the object. In this case, it is enough that at least two image data is displayed. That is, images viewed from a first side and a second side of the object may be displayed on a first and a second of the display units. As described above, the object may be displayed on several display units from various different angles. By doing so, it is possible to display the shape of the object when viewing the actual object from the front, side, and top of the object without distortion. Therefore, users can accurately grasp the ratio of width, depth, and height of the actual object on the display screen.  
     [0041] The above object multi-view display is used to display the image of the object included in the contents data downloaded from a contents server providing contents delivery service. The contents data sent from the server includes at least two image data as display data of the object. The image data are each display data when viewing the object, such as goods, from mutually different two sides, that is, the front side, the right or left side, or the top side of the object.  
     [0042] For example, assume that the contents data sent from the server includes two image data photographing goods, e.g., a cup from its front and right sides. In this case, the above two image data photographing the cup from its front and right sides are simultaneously displayed on each of the front and right side display units  131  and  132 , as illustrated in FIG. 1.  
     [0043] If the contents data sent from the server includes six image data photographing the cup from its six sides, the following display is made in addition to the display shown in FIG. 1. That is, as seen from FIG. 2 and FIG. 3, another four image data photographing the cup from its top, left, rear, and bottom sides are further simultaneously displayed on each of the top, left, rear, and bottom side display units  133 ,  134 ,  135  and  136 .  
     [0044] The determination of which display unit should be used for the object multi-view display depends on the contents data to be displayed. Namely, if the contents data including six image data photographing the object from all of its six sides is prepared, all display units  131  to  136  are used for the display. On the other hand, if contents data including two image data photographing the object from its front and right sides is prepared, the front side display unit  131  and the right side display unit  132  are used. The top side display unit  133 , the left side display unit  134 , the rear side display unit  135 , and the bottom side display units  136  are not used. The unused display units may be used to display document data relative to the object.  
     [0045] For example, if the contents data includes two image data photographing an object from its front and side, and document data relative to the object, the document data may be displayed on the rear side display unit  135 , as shown in FIG. 4. By doing so, it is possible to simultaneously display the document data while displaying the object image from multiple viewpoints. Therefore, users can simultaneously read (watch) character information, such as an explanation text, for the object in addition to the object image.  
     [0046] In application to business, the above display mode is applicable to briefing presentations using the mobile phone  1 . For example, a business salesperson reads the document data displayed on the rear side display unit  135  as a brief memo for presentation while showing the front side display unit  131 , that is, the object image displayed from multiple viewpoints, towards customers.  
     [0047] In this case, the content provider prepares contents data (hereinafter, referred to as “multi-view display contents data”) including at least two image data photographing the object from its front and side directions. Therefore, in the mobile phone  1 , there is no need of taking procedures for creating the multi-view display contents data. Of course, the user takes a photograph of a certain object from its front and side directions by using a camera unit  141 , and thereby, it is possible to generate the above multi-view display contents data in the mobile phone  1  using two image data obtained by photographing.  
     [0048] The system configuration of the mobile phone  1  will be described below with reference to FIG. 5. Here, assume that the above display units  131  to  136  each comprise an LCD.  
     [0049] The mobile phone  1  includes an RF (Radio Frequency) unit  10 , a base band unit  20 , and an input/output unit  30 , as depicted in FIG. 5. The RF unit  10  comprises an antenna  11 , a duplexer (DUP)  12 , a receiver (RX)  13 , a transmitter (TX)  15 , and a frequency synthesizer (SYN)  14 . The RF unit  10  makes the voice/data transmission and reception with the base station by radio signal according to the control of the base band unit  20 .  
     [0050] The base band unit  20  performs a process of generating the voice/data to be transmitted via the RF unit  10 , and a process of reproducing the voice/data received by the RF unit  10 . The base band unit  20  comprises a system controller  21 , a memory  22 , a camera interface  23 , a voice codec  24 , and six LCD controllers  31  to  36 .  
     [0051] The system controller  21  controls other components of the base band unit  20 , the RF unit  10  and the input/output unit  30 , by executing programs stored in the memory  22 .  
     [0052] The voice codec  24  carries out the following process. That is, the voice codec  24  modulates a voice signal input from the microphone  11 , and transmits it to the RF unit  10 . Further, the voice codec  24  demodulates the voice signal received by the RF unit  10 , and outputs it via a speaker  112 .  
     [0053] Six LCD controllers  31  to  36  are display controllers provided correspondingly to the above six display units  131  to  136 . Each of six LCD controllers  31  to  36  drives the corresponding display unit (LCD), and controls the LCD.  
     [0054] The system controller  21  has a built-in multi-view display control unit  211 . The multi-view display control unit  211  carries out the object multi-view display described before. Namely, if data received by the RF unit  10  is multi-view display contents data, the multi-view display control unit  211  supplies each image data included in the multi-view display contents data to display controllers corresponding to the necessary display units.  
     [0055] For example, the image data viewing the object from its front side is sent to the LCD controller  31  by the multi-view display unit  211 , and thereafter, displayed on the LCD display screen constituting the front side display unit  131 . The image data viewing the object from its right side is sent to the LCD controller  32  by the multi-view display unit  211 , and thereafter, displayed on the LCD display screen constituting the right side display unit  132 . Further, the image data viewing the object from its top side is sent to the LCD controller  33  by the multi-view display unit  211 , and thereafter, displayed on the LCD display screen constituting the top side display unit  133 .  
     [0056]FIG. 6 shows a data format of contents data transmitted to the mobile phone  1  by a content server.  
     [0057] The contents data is composed of a contents ID flag and one or more data fields following the ID flag. The contents ID flag is contents identification information representing the kind of the contents data.  
     [0058] If the contents data is multi-view display contents data, the contents ID flag includes identification information indicative that the above contents data is multi-view display contents data. In the multi-view display contents data, at least three data fields are added after the contents ID flag.  
     [0059] Each data field of the multi-view display contents data is composed of an image ID flag and image data following the ID flag. The image ID flag is identification information indicative that the data field is image data when viewing the object from which of the front, right, top, left, rear, and bottom sides. All of image data included in the multi-view display contents data may have the same display size.  
     [0060] If the multi-view display contents data is script data described by a markup language such as HTML (Hyper Text Markup Language), it is possible to realize each data field by an image file linked by the script data. For example, if the multi-view display contents data including two image data is configured by an HTML file, two image files are linked with the HTML file. Each image file has added identification information indicative that the image file is image data when viewing the object from which side.  
     [0061]FIG. 7 shows the configuration of the multi-view display control unit  211 . The multi-view display control unit  211  includes an image ID flag determining unit  212 , and an image data distributing unit  213 , as seen from FIG. 7.  
     [0062] If contents data received by the RF unit  10  is multi-view display contents data, the multi-view display contents data is sent to the image ID flag determining unit  212 . The image ID flag determining unit  212  checks the image ID flag for each data field included in the multi-view display contents data. Thereafter, the image ID flag determining unit  212  determines whether the image ID flag is image data to be displayed on which display unit for each data field.  
     [0063] According to the determination result, the image data distributing unit  213  distributes many image data included in the multi-view display contents data to the LCD controller corresponding to each display unit on which the image data should be displayed.  
     [0064] For instance, assume that the multi-view display contents data includes the following two image data. The image data are a first image data (front image data) viewing the object from its front side and a second image data (right-side image data) viewing the object from its right side.  
     [0065] In this case, the image data distributing unit  213  distributes the first to second image data to the LCD controllers  31  to  32  as display data. By doing so, the first to second image data are displayed on the display screens of the display units  131  to  132 , respectively.  
     [0066] The image data distributing unit  213  includes an image reduction (compression) processing unit  214 . The image reduction processing unit  214  carries out image reduction processing of reducing the display size of each multi-view display image data, as the need arises.  
     [0067] According to the above image reduction processing, the display size of any image data included in the multi-view display contents data is reduced in the following manner. That is, the display size is reduced so as to match with the display resolution of the display unit having the smallest display screen size (display resolution) in the several display units displaying image data included in the multi-view display contents data. By doing so, it is possible to display the object viewing from multiple viewpoints in the same size, regardless of the difference in display resolution between the display units  131  to  136 .  
     [0068] The processing flow until the mobile phone  1  displays contents data on the multi-view display device  120  after receiving the contents data will be described below with reference to the flowchart of FIG. 8.  
     [0069] The RF unit  10  makes radio communications with the base station, and receives contents data from a server sent via the base station (step S 101 ). The contents data received by the RF unit  10  is sent to the system controller  21 . The system controller  21  stores the received contents data in the memory  22 , and thereafter, analyzes the contents data.  
     [0070] In the above analysis, the system controller  21  checks the content ID flag attached to the received contents data (step S 102 ), and determines whether or not the contents data is multi-view display contents data (step S 103 ).  
     [0071] If the received contents data is usual contents data other than the multi-view display contents data (NO in step S 103 ), the system controller  21  selects the main display of the mobile phone  1 , that is, the front side display unit  131  as the display unit for displaying the contents data. In this case, the system controller  21  outputs image or character information included in the contents data to the LCD controller  31  so that the image or character information can be displayed on the front side display unit  131  (step S 104 ).  
     [0072] On the other hand, if the received contents data is multi-view display contents data (YES in step S 103 ), the system controller  21  checks the image ID flag of each image data included in the multi-view display contents data, using the multi-view display control unit  211 . By doing so, the system controller  21  determines the display unit to be selected as display destination for each image data (step S 105 ).  
     [0073] Thereafter, the system controller  21  distributes each image data included in the multi-view display contents data to the LCD controller corresponding to the destination display unit, using the multi-view display control unit  211  (step S 106 ). The front side image data is sent to the LCD controller  31  corresponding to the front side display unit  131 , and displayed on the display screen of the front side display unit  131  (step S 107 ). Likewise, the right side image data is sent to the LCD controller  32 , and displayed on the display screen of the right side display unit  132  (step S 108 ). The top side image data is sent to the LCD controller  33 , and displayed on the display screen of the top side display unit  133  (step S 109 ). Further, the bottom side image data is sent to the LCD controller  36 , and displayed on the display screen of the bottom side display unit  136  (step S 110 ).  
     [0074] The procedure for the image reduction processing carried out by the image reduction processing unit  214  in the image data distribution processing shown in step S 106  of FIG. 8 will be described below with reference to the flowchart of FIG. 9.  
     [0075] The image reduction processing is carried out in the following case. That is, the display size of image data included in the multi-view display contents data is larger than the display resolution of the display unit having the lowest display resolution in the display units determined as the destination display units.  
     [0076] First, a reduction ratio used for the image reduction processing is determined in the following manner (step S 201 ). That is, the reduction ratio is determined based on the display resolution of the display unit having the lowest display resolution in the display units determined as the destination display units and the display size of image data included in the multi-view display contents data.  
     [0077] For example, assume that three display units, that is, the front, right, and top side display units  131  to  133  are determined as destination display units displaying the multi-view display contents data. If the display resolution of the right side display unit  132  is equal to that of the top side display unit  133 , and the display resolution of the right and top side display units  132  and  133  is designed smaller than that of the front side display unit  131 , the reduction ratio is determined in the following manner. That is, the reduction ratio is determined based on the display resolution of the right or top side display unit  132  or  133  and the display size (resolution) of image data included in the multi-view display contents data, so that the resolution of image data is matched with the resolution of the display unit  132  or  133 .  
     [0078] Each image data included in the multi-view display contents data is reduced with the same reduction ratio as determined in step S 201  (step S 202 ). Reduced image data are distributed to LCD controllers  31  to  33 , and are displayed on display units  131  to  133  (step S 203 ).  
     [0079] In this manner, each image data included in the multi-view display contents data is reduced with the same reduction ratio, and thereby, it is possible to display the multi-view display contents data so that the user can accurately grasp the shape of the actual object. That is, even if the display resolution differs in the display units  131  to  136 , it is possible to display each object when viewing it from multiple viewpoints having the same size.  
     [0080] The procedure for displaying the multi-view display contents data including document data will be described below with reference to FIG. 10 and FIG. 11.  
     [0081]FIG. 10 shows a data format of the multi-view display contents data including document data. The document data is composed of text data describing/explaining the object. The document data is included as one data field in the multi-view display contents data, like each image data of the object. The data field of the document data is attached with a document flag indicative that the data field includes document data. The document flag enables the apparatus to determine whether or not the multi-view display contents data includes document data.  
     [0082] For instance, if the received contents data is multi-view display contents data composed of front, right, and top side image data of a certain object, and document information describing the explanation relevant to the object, it includes four data fields as shown in FIG. 10.  
     [0083] The processing flow executed by the mobile phone  1  will be described below with reference to the flowchart of FIG. 11. The processing flow is the procedure until the mobile phone  1  displays the multi-view display contents data including the document data on the multi-view display device  12 .  
     [0084] The RF unit  10  makes radio communications with the base station, and receives contents data from a server sent via the base station (step S 301 ). The contents data received by the RF unit  10  is sent to the system controller  21 . The system controller  21  stores the received contents data in the memory  22 , and thereafter, analyzes the contents data.  
     [0085] In the above analysis, the system controller  21  checks the content ID flag attached to the received contents data (step S 302 ), and determines whether or not the contents data is multi-view display contents data (step S 303 ).  
     [0086] If the received contents data is usual contents data other than the multi-view display contents data (NO in step S 303 ), the system controller  21  selects the main display of the mobile phone  1 , that is, the front side display unit  131  as the display unit for displaying the contents data. In this case, the system controller  21  outputs image or character information included in the contents data to the LCD controller  31  so that the image or character information may be displayed on the front side display unit  131  (step S 304 ).  
     [0087] On the other hand, if the received contents data is multi-view display contents data (YES in step S 303 ), the system controller  21  checks the image ID flag of each image data included in the multi-view display contents data, using the multi-view display control unit  211 . Thus, the system controller  21  determines the display unit to be selected as the destination display unit for each image data (step S 305 ).  
     [0088] Thereafter, the system controller  21  distributes each image data included in the multi-view display contents data to the LCD controller corresponding to the destination display unit, using the multi-view display control unit  211  (step S 306 ). For example, if the received contents data is multi-view display contents data composed of front, right, and top side image data of a certain object, and document data relevant to the object, it is displayed in the following manner. That is, the front, right, and top side image data are distributed to the LCD controllers  31  to  33  so that these image data can be displayed on the front, right, and top side display units  131  to  133 , respectively (step S 307  to step S 309 ).  
     [0089] Thereafter, the system controller  21  checks whether or not there exists a data field including a document flag, and thereby, determines whether or not there is document data to be displayed (step S 310 ). If the document data to be displayed exists, the system controller  21  selects an arbitrary one of the display units, which are not currently used for image data display, in the display units  131  to  136 . Then, the system controller  21  outputs the document data to the LCD controller corresponding to the above selected display unit as display data so that the document data can be displayed on the selected display unit (step S 311 ).  
     [0090] For example, if the received contents data is multi-view display contents data including front, right, and top side image data, the unused display units are three, that is, left, rear, and bottom side display units  134  to  136 . In this case, one of three display units  134  to  136  is selected as the display unit for displaying document data. Incidentally, if the rear side display unit  135  is unused, it is preferable to preferentially select the rear side display unit  135 .  
     [0091] As is evident from the above description, according the present embodiment, multi-view display is realized in the following manner. That is, the first to second data viewing the object from at least two directions, e.g., two of its front, right, left, or top sides are displayed on two display units provided on two sides of the apparatus main body. By doing so, it is possible to simultaneously display the same object on several display units from different display angles. Therefore, it is possible to simultaneously display the shapes of the actual object, that is, the shapes viewing from two directions without distortion. As a result, users can accurately grasp the ratio of width, depth, and height of the actual object from the multi-view display image thus displayed.  
     [0092] In the above embodiment, the multi-view display contents data sent from the external server via a wireless network is displayed. The network used for communication with the external server may be any of wired or wireless networks.  
     [0093] The above multi-view display contents data may be read from a computer readable memory medium, which is previously stored with multi-view display contents data, and thereafter, may be displayed. For example, memory cards mountable to portable information processing apparatuses, such as mobile phones and PDAs, may be used.  
     [0094] Additional advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.