JP4162146B2 - Image display device, image display method, and program - Google Patents

Description

  The present invention relates to an image display apparatus, an image display method, and a program, and more particularly to an information screen display during execution of an application such as a game.

  Some game programs are such that when a predetermined information screen display operation is performed on a computer such as a game machine during game execution, the information screen is displayed on the computer screen. The information screen is, for example, a pause screen for pausing or forcibly terminating the game.

  The game program according to the background art includes a program for displaying an information screen in addition to a program related to a game. Therefore, whether or not the user can use such a function for displaying the information screen depends on whether or not a program for this function is included in the game program. There is a problem that the user cannot use.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an image display device, an image display method, and an image display device capable of displaying an information screen during execution of an application, regardless of an application program such as a game. To provide a program.

  In order to solve the above problems, an image display apparatus according to the present invention includes an application screen generation unit that generates a given application screen, and an application screen storage unit that stores the application screen generated by the application screen generation unit. An operation detection unit that detects a predetermined information screen display operation, an information screen generation unit that generates a predetermined information screen when the information detection operation is detected by the operation detection unit, and the information screen generation Information screen storage means for storing the information screen generated by the means, and when the information detection operation is detected by the operation detection means, the information from the application screen stored in the application screen storage means Display of the display means on the information screen stored in the screen storage means Characterized in that it comprises a display object switching means for switching an elephant, a.

  The image display method according to the present invention includes an application screen generation step for generating a given application screen, and an application screen storage step for storing the application screen generated in the application screen generation step in a first display buffer. An operation detecting step for detecting a predetermined information screen display operation, an operation detecting step, an information screen generating step for generating a predetermined information screen when the information screen display operation is detected, and the information screen generating step. When the information screen display operation is detected in the information screen storage step of storing the information screen generated in step 2 in a second display buffer different from the first display buffer, and the operation detection step, From the application screen stored in one display buffer The information screen is stored in the second display buffer, characterized by comprising a display object switching step of switching the display target of the display unit.

  Further, the program according to the present invention detects an application screen generation unit that generates a given application screen, an application screen storage unit that stores the application screen generated by the application screen generation unit, and a predetermined information screen display operation Information that stores the information screen generated by the information screen generating means and the information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means. When the information screen display operation is detected by the screen storage means and the operation detection means, from the application screen stored in the application screen storage means to the information screen stored in the information screen storage means, Display object switching that switches the display object of the display means Is a program for causing a computer to function as a step. Examples of the computer include various game machines, portable electronic devices, personal computers, and various server computers. The program may be stored in various computer-readable information storage media.

  According to the present invention, the generated application screen is stored in the application screen storage unit, while the generated information screen is stored in the information screen generation unit. When a predetermined information screen display operation is detected, the display target of the display unit is switched from the application screen stored in the application screen storage unit to the information screen stored in the information screen storage unit. Thereby, an information screen can be displayed during execution of an application regardless of a program of an application such as a game.

  In one aspect of the present invention, the display unit sequentially reads and displays the color data of each pixel constituting the application screen stored in the application screen storage unit, and the display target switching unit is operated by the display unit. A blank period in which the color data of each pixel is sequentially read and not displayed is detected, and the display target of the display unit is switched according to the detection. In this way, even when the information screen is being stored in the information screen storage unit, the state is not displayed by the display unit, and the switching to the information screen can be suitably performed.

  In one aspect of the present invention, when the information screen display operation is detected by the operation detection unit, the application screen generation unit generates the application screen and the information screen generation unit generates the application screen every predetermined time. The generation of the information screen is repeated. In this way, the generation of the application screen can be continued while the information screen is generated and displayed.

  In one aspect of the present invention, the information screen display operation is an operation of pressing a predetermined button by a predetermined number of times of two or more. When the predetermined button is pressed less than the predetermined number of times, the information screen display operation Thus, the brightness of the display means is changed. In this way, the information screen can be displayed using a button for changing the luminance of the display means.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Here, a portable electronic device that functions as a portable game machine, a portable music player, or a personal digital assistant (PDA) will be described as an image display device according to an embodiment of the present invention.

  FIG. 1 is a front external view of a portable electronic device which is an image display device according to an embodiment of the present invention. The portable electronic device 10 shown in the figure has a thin, horizontally-long box-like casing having a shape in which both left and right sides are rounded in an arc shape, and a liquid crystal display 12 is provided at the center. Further, push buttons 16a, 16b, 16c, 16d are provided on the right side of the liquid crystal display 12, and direction keys 18u, 18r, 18d, 18l are provided on the left side. When the user grasps both sides of the housing with both hands, the user can operate the buttons 16 and the direction keys 18 with each thumb while looking at the liquid crystal display 12. Push buttons 14L and 14R are also provided on the upper left and right sides of the casing, and these can be operated with each index finger of the user. In addition, a pad 20 is provided below the direction key 18. The pad 20 can be arbitrarily slid in all directions parallel to the front surface of the housing, and operation data indicating the sliding direction and the sliding amount can be input to the portable electronic device 10.

  A memory access indicator 22 and a communication access indicator 24 are provided on the left front edge of the housing. These are configured to include light emitting elements such as LEDs. When a storage medium is inserted into an insertion port (not shown) provided on the left side of the housing and the storage medium is accessed. The memory access indicator 22 is lit. The portable electronic device 10 has a built-in wireless LAN communication function, and the communication access indicator 24 is lit during communication connection.

  On the other hand, a power indicator 30 and a hold indicator 32 are provided on the right front edge of the housing. These are also configured to include light emitting elements such as LEDs, and when the power / hold switch (not shown) provided on the right side of the casing is operated to turn on the power to the portable electronic device 10, the power indicator 30 is turned on. Further, when the portable electronic device 10 is set to a specific operation state by the switch, the hold indicator 32 is turned on.

  On the lower side of the liquid crystal display 12, a home button 36, volume buttons 38m and 38p, a screen button 40, a sound button 42, a select button 44, and a start button 46 are provided. The home button 36 is a button for displaying a home screen on the liquid crystal display 12. In particular, when the home button 36 is pressed while an application program such as a game program is being executed, an information screen can be displayed on the liquid crystal display 12. Here, the information screen is a forced insertion (impose) screen to display information such as the current date and time, the remaining battery level, and the currently set volume, and to terminate the application program currently running in the background The operation guidance of is displayed. Further, when the home button 36 is pressed while the information screen is displayed, the display of the information screen can be stopped and the display of the original application screen can be restored. Volume buttons 38m and 38p are buttons for adjusting the volume of sound output from the speakers 26L and 26R. The screen button 40 is a button for adjusting the brightness of the liquid crystal display 12. When the screen button 40 is pressed, the brightness of the liquid crystal display 12 can be changed in the order of low brightness, medium brightness, and high brightness. Further, after the liquid crystal display 12 is set to high brightness, when the screen button 40 is further pressed, the information screen is displayed on the liquid crystal display 12. The luminance change and the information screen display in response to the pressing of the screen button 40 are also performed during execution of an application program such as a game program.

  The sound button 42 is a button for turning on and off the sound output from the speakers 26L and 26R, the select button 44 is a button for selecting a menu item displayed on the liquid crystal display 12, and the start button 46 is mainly used. This is a button for starting a game when a game program is being executed on the portable electronic device 10.

  A speaker 26L is provided on the left side of the liquid crystal display 12, and a speaker 26R is provided on the right side, so that stereo sound can be output. An annular strap holder 34 is attached to the left side of the lower edge of the housing, and a portable string can be attached to the strap holder 34.

  FIG. 2 is a diagram illustrating a hardware configuration of the portable electronic device 10. As shown in the figure, in the portable electronic device 10, a CPU (Central Processing Unit) 54, a VRAM 56, an image processing unit 58, a DMAC (Direct Memory Access Controller) 60, an LCD driver 62, an audio processing unit 64, a RAM (Random Access). A computer having a memory 66, a flash EPROM (Erasable Programmable Read Only Memory) 68, and interfaces (I / F) 70, 74, 78, 82, 86 are connected to each other via a bus 52 so that data communication is possible. An operation unit 72 is connected to the interface 70, and an LED 76 is connected to the interface 74. A disk drive 80 is connected to the interface 78. The disk drive 80 is provided on the back side (not shown) of the housing. A communication unit 84 is connected to the interface 82, and a battery remaining amount sensor 88 is connected to the interface 86. Further, speakers 26L and 26R are connected to the audio processing unit 64, and a liquid crystal display (LCD) 12 is connected to the image processing unit 62. These are housed in a casing of the portable electronic device 10 together with a battery, and are driven by the battery to be portable.

  The CPU 54 controls each unit of the portable electronic device 10 based on an operating system (OS) stored in the flash EPROM 68 and a program read from the disk 90. In particular, here, the CPU 54 executes a game program stored in the disk 90, an information screen program stored in the flash EPROM 68, an operation management program, and a main program. Each program stored in the flash EPROM 68 may be stored in the flash EPROM 68 at the time of shipment from the factory, or may be read from the disk 90 and stored in the flash EPROM 68. The bus 52 is for exchanging addresses and data between the units of the portable electronic device 10. In addition, a program read from the disk 90 is written in the RAM 66 as necessary. The RAM 66 is also used for the work of the CPU 54. Here, in particular, it is also used as a display buffer (single buffer) for an information screen (image thereof). In this portable electronic device, the display buffer for the information screen is provided in the RAM 66 so that the application program such as the game program can use as much resources as the RAM 66 and VRAM 56, and the display buffer is a single buffer, that is, only for one screen. It is configured as a buffer having only a storage area. Since the information screen is drawn in a single buffer on the RAM 66, the drawing is executed during the vertical blank period of the liquid crystal display 12, as will be described later. In this way, the information screen being drawn is not displayed on the liquid crystal display 12. The sound processing unit 64 reproduces various sound data such as game music, game sound effects and messages read from the disk 90, and outputs them in stereo from the speakers 26L and 26R. A VRAM (Video Random Access Memory) 56 is a storage means used as a display buffer for storing one or a plurality of display screens (images thereof). Here, an application program such as a game program secures a display buffer that uses a storage area for two screens in the VRAM 56, that is, a double buffer, and alternates between both buffers every frame time (for example, every 1/60 seconds). An application screen is drawn, and these are alternately read for each frame and displayed on the liquid crystal display 12. While the application screen is read from one buffer, the application screen that should be displayed in the next frame time is drawn in the other buffer, so the application screen is an information screen Unlike the case, it may be generated within one frame time and drawn in a buffer. In this way, display processing is performed on the application screen using abundant resources as compared to the information screen. The image processing unit 58 draws a display screen on the VRAM 56 in accordance with an instruction from the CPU 54. The DMAC 60 reads the display screen stored in the VRAM 56 or the display screen stored in the RAM 66 without using the CPU 54, and supplies it to the LCD driver 62. The LCD driver 62 displays the display screen supplied from the DMAC 60 on the liquid crystal display 12.

  The interfaces 70, 74, 78, 82, and 86 relay data communication between the CPU 54, the operation unit 72, the LED 76, the disk drive 80, the communication unit 84, and the battery remaining amount sensor 88, respectively. The operation unit 72 is an input means for the user to perform various operations. The push buttons 14 and 16, the direction key 18, the pad 20, the home button 36, the volume button 38, the screen button 40, the sound button 42, the select button 44, Operation members such as a start button 46 are included. Operation data indicating operation contents (for example, presence / absence of operation, operation amount, operation direction) for these operation members is supplied to the CPU 54 side via the interface 78. The LED 76 notifies the user of the state of the portable electronic device 10, and is provided in the memory access indicator 22, the communication access indicator 24, the power indicator 30, and the hold indicator 32 here. The disk drive 24 reads a program and data stored in a disk 27 that is a computer-readable information storage medium in accordance with an instruction from the CPU 54. The communication unit 30 performs data communication with another computer (information processing apparatus) via a communication network, and has a wireless LAN function, for example. The battery remaining amount sensor 88 detects the remaining amount of the battery of the portable electronic device 10, and the detection result is supplied to the CPU 54 via the interface 86.

  In the above description, the program is supplied to the portable electronic device 10 via the disk 90 as an information storage medium. However, the program is supplied to the portable electronic device 10 from a remote location via a communication network such as the Internet. Alternatively, the program may be supplied to the portable electronic device 10 using various data communication such as infrared communication.

  Hereinafter, by pressing the home button 36 once while the game program is being executed by the portable electronic device 10 having the above-described appearance and hardware configuration, that is, while the game screen is displayed on the liquid crystal display 12, Alternatively, a technique for displaying an information screen on the liquid crystal display 12 in place of the game screen by pressing the screen button 40 a predetermined number of times two or more (here, four times) will be described.

  FIG. 3 shows an example of a game screen displayed on the liquid crystal display 12. This game screen is displayed on the liquid crystal display 12 when the CPU 54 executes a game program stored on the disk 90. In this game program, a virtual three-dimensional space is constructed in the RAM 66, and a road object 92 and a player character object 94 are arranged in the space. And about the player character object 94, the position and attitude | position can be changed for every predetermined time in a virtual three-dimensional space by operating the operation member of the portable electronic apparatus 10. FIG. Here, in particular, the direction keys 18u, 18r, 18d and 18l are used to position the player character object 94 in the virtual three-dimensional space on the moving direction side of the player character 94, on the right side of the moving direction, on the opposite side of the moving direction. , It is changed to the left with respect to the direction of travel. A virtual camera is arranged in the virtual three-dimensional space, and the state of the virtual three-dimensional space captured by the virtual camera is imaged every predetermined time and displayed on the liquid crystal display 12. FIG. 3 shows an example of this image.

  While such a game screen is displayed on the liquid crystal display 12, when the home button 36 is pressed or the screen button is pressed a predetermined number of times, an information screen is displayed on the liquid crystal display 12. . FIG. 4 shows an example of this information screen. The information screen includes a plurality of element images 96a to 96f. The element image 96a shows the current date and time, and this image is generated based on a clock and calendar function output (not shown) built in the portable electronic device 10. The element image 96b shows the remaining battery level, and this image is generated based on the remaining battery level data output from the remaining battery level sensor 88. The element image 96c is generated using text data prepared in advance (“Do you want to end the game?”, “YES” and “NO”), and the character image of “YES” or “NO” A cursor is displayed on either of them. The cursor is moved to the right character by the direction key 18r, and is moved to the left character by the direction key 18l. The element image 96e shows the sound volume currently set in the portable electronic device 10. The value of the volume is managed by the flash EPROM 68, and decreases within a predetermined range (for example, 0 to 255) when the volume button 38m is pressed, and increases when the volume button 38p is pressed. . In the portable electronic device 10, the element image 96 e is generated based on the current volume value managed by the flash EPROM 68. The element image 96f is an operation guidance image. When the push button 16c is pressed, the game screen is restored, and when the push button 16b is pressed, processing corresponding to the cursor position of the element image 96c is performed. That is, when the cursor of the element image 96c is at the position of the character “YES”, the game program being executed is terminated by pressing the push button 16b, and the main screen (not shown) is restored. On the other hand, when the cursor of the element image 96c is at the position of the character “NO”, the game screen being generated by the game program being executed is restored by pressing the push button 16b.

  In the portable electronic device 10, the information screen is divided into a plurality of element images as described above, and rendering is performed on the information screen display buffer prepared on the RAM 66 for each element image. FIG. 5 shows a drawing flag table used at this time. The drawing flag table is stored in the RAM 66. The element image ID for identifying each element image 96 and the element image 96 identified by the element image ID have already been drawn in the display buffer and need to be redrawn. And a drawing flag indicating that it is not. That is, when the drawing flag is 1, it indicates that the element image 96 identified by the element image ID has been drawn in the display buffer and redrawing is not necessary. When the drawing flag is 0, This indicates that the element image 96 needs to be drawn or redrawn in the display buffer. In the drawing flag table, the element image IDs are recorded in the order to be drawn, and the display buffer from the element image 96 identified by the element image ID having the highest rank associated with the drawing flag having a value of 0 in the drawing flag table. Drawing to is done. The drawing to the display buffer is executed during the vertical blank period of the liquid crystal display 12, and whenever the drawing of the element image 96 selected based on the drawing flag table is completed, the remaining of the vertical blank period is obtained. If the time is determined and the remaining time is equal to or longer than the predetermined time, the element image 96 to be drawn next in the display buffer is selected based on the drawing flag table.

  Further, when an information screen display operation such as pressing the home button 36 is performed while the game screen shown in FIG. 3 is being displayed on the liquid crystal display 12, the information screen is quickly replaced with the game screen. If any of the direction keys 18u, 18r, 18d, 18l and the buttons 16a, 16b, 16c, 16d, 14L, and 14R (these are referred to as “application priority operation members”) is operated. The operation data input by these application priority operation members is continuously used in the game program. That is, the game program continues to update the game screen according to the operation data input by the application priority operation member. In the meantime, the operation data is not used to update the information screen by the application priority operation member.

  After the information screen display operation, if the information screen generation program detects that none of the application priority operation members are operated, the program stores an operation invalidation flag in association with the application priority member. An operation management program (described later) is instructed. FIG. 6 is a diagram illustrating the relationship between the operation invalidation flag and the operation data. When operation data is input by the operation unit 72, operation data OP <b> 1 to OPn related to each operation member is stored in an operation data buffer prepared on the RAM 66 by an operation management program executed by the CPU 54. When the setting of the operation invalidation flag is instructed from the information screen generation program, the operation data OPx (x is an application priority operation member out of 1 to n) input by the application priority operation member in the operation data buffer 102. And an operation invalidation flag Fx indicating that the operation should be invalidated is stored. At this time, a flag indicating that the operation is not invalidated is stored in the other operation data. When the operation invalidation flag is set in this way, even if an operation such as pressing the application priority operation member is actually performed in the game program, no operation is performed on the application priority member. Operation data indicating that it has not been received. On the other hand, operation data indicating an operation actually performed on the application priority operation member is passed to the information screen generation program. As described above, when the information screen display operation is performed during the game, the game operation can be continued by the application priority operation members until the operations for all the application priority operation members are stopped. Further, once the operations on all the application priority operation members are stopped, the operation on the information screen can be performed using these operation members thereafter.

  FIG. 7 shows programs related to the present invention among the programs executed by the portable electronic device 10. As shown in the figure, the portable electronic device 10 executes a game program (application screen generation program) 104, an information screen generation program 106, a main program 108, and an operation management program 110. The game program generates a game screen every predetermined time and stores it in the display buffer of the VRAM 56. The information screen generation program 106 also detects that an information screen display operation such as pressing of the home button 36 has been performed while the game program 104 is being executed, and displays the information screen when the information screen display operation is performed. As described above, the image is generated and drawn in the dedicated display buffer on the RAM 66, and the display target of the liquid crystal display 12 is stored in the RAM 66 from the game screen stored in the VRAM 56 at the start timing of the vertical blank period. Switch to the information screen. In this way, an information screen is displayed on the liquid crystal display 12 instead of the game screen. Then, after the information screen display operation, the operation state of the application priority operation member is monitored, and if any of them has not been operated, the operation management program 110 is instructed to set the operation invalidation flag. Further, when a state in which none of the application priority operation members is operated comes, the information screen is updated according to the operation data input from the application priority operation member from that time.

  The operation management program 110 stores operation data input from the operation unit 72 in an operation data buffer on the RAM 66. Further, an operation invalidation flag is stored in association with each operation data in accordance with an instruction from the information screen generation program 106 or the like. Further, when the game program 104 instructs to transfer operation data, the operation data is changed according to the operation invalidation flag corresponding to the operation data, and the changed operation data is transferred to the game program 104. On the other hand, when the operation data is instructed from the information screen generation program 106, the operation data input by the operation unit 72 is transferred as it is.

  The main program 108 is a program that displays a main screen (not shown) for starting each function of the portable electronic device 10 such as starting a game program.

  Here, the information screen processing by the information screen generation program 106 will be described in more detail. 8 to 10 are flowcharts showing the information screen processing. The processing shown in the figure is executed after confirming that the processing at the frame time of the application program such as the game program is completed at each frame time. While the information screen process is being executed, an application program such as a game program continues the application screen generation process for each frame time. Therefore, the application screen can be displayed on the liquid crystal display 12 at any time by a predetermined return operation instead of the information screen. In the information screen processing, first, the operation data stored in the operation data buffer is read, and it is determined whether or not the above-described information screen display operation such as pressing of the home button 36 has been performed (S101). If the information screen display operation is not performed, it is determined whether or not the information screen is currently being displayed on the liquid crystal display 12 (S102). If the information screen is not being displayed, the information screen processing is terminated. On the other hand, when the information screen display operation is performed (S101) or when the information screen is being displayed (S102), it is determined whether or not the operation management program 110 has been instructed to set the operation invalidation flag (S102). S103). If not instructed, it is determined based on the operation data stored in the operation data buffer whether all of the application priority operation members have not been operated (S104). If all of the application priority operation members have not been operated, the operation management program 110 is instructed to set an operation invalidation flag in association with operation data input by the application priority operation member (S105). . On the other hand, if it is determined in S103 that the operation invalidation flag has already been set, the processes in S104 and S105 are skipped.

  Next, it is determined whether or not an end operation has been performed on the information screen according to the stored contents of the operation data buffer and the cursor position of the element image 96c (S106). The end operation is a case where the cursor is displayed at the position of the character “YES” and the push button 16b is pressed. If an end operation has been performed, an instruction to end the game program is sent to the game program (S113; FIG. 9), and then the main program is executed (S114). Upon receiving the instruction, the game program executes an end process prepared in advance in the game program. Then, the arrival of the vertical blank period is monitored (S115), and if it arrives, the display target of the liquid crystal display 12 is provided on the VRAM 56 from the contents of the display buffer for information screen provided on the RAM 66 (ie, information screen). The contents of the displayed display buffer (that is, the main screen) are switched (S116). Then, the operation management program 110 is instructed to reset the operation invalidation flag (S117), and the information screen processing is terminated.

  Returning to FIG. 8, if it is determined in S106 that the end operation has not been performed, it is next determined whether a return operation has been performed on the information screen according to the stored contents of the operation data buffer and the cursor position of the element image 96c ( S107). The return operation is when the cursor is displayed at the position of the character “NO” and the push button 16b is pressed, or when the push button 16c is pressed regardless of the cursor position. Further, pressing the home button 36 while the information screen is displayed is also determined as a return operation. If the return operation has been performed, the vertical blank period is awaited (S118; FIG. 10), and the display target of the liquid crystal display 12 is set to the contents of the display buffer for the information screen provided on the RAM 66 (that is, the information screen). To the contents of the display buffer (that is, the game screen) provided on the VRAM 56 (S119). Then, the operation management program 110 is instructed to reset the operation invalidation flag (S120), and the information screen processing ends.

  Returning to FIG. 8, if it is determined in S107 that the return operation has not been performed, the process waits for the arrival of the vertical blank period (S108), and the display target of the liquid crystal display 12 is changed to the contents of the display buffer provided on the VRAM 56 (ie, the game). The screen is switched to the contents of the display buffer for the information screen provided on the RAM 66 (that is, the information screen) (S109). Then, as described above, one element image is selected based on the drawing flag table, drawn in the information screen display buffer provided on the RAM 66, and the fact that the element image has been drawn is drawn. It is stored in the flag table (S110). Thereafter, the remaining time of the vertical blank period is checked, and if it is equal to or longer than the predetermined time, the process of S110 is repeated (S111). On the other hand, if it is less than the predetermined time, the information screen process is terminated.

  According to the portable electronic device 10 described above, the element image that has been drawn in the display buffer is distinguished from the element image that has not yet been drawn by the drawing flag, and the drawing process is performed only for the element image that has not yet been drawn. Drawing processing can be reduced, and more element images 96 can be suitably displayed. When redrawing is necessary, the element image corresponding to the drawing flag can be forcibly redrawn by forcibly resetting the drawing flag to 0. In this way, the display of all or part of the element image can be updated as necessary.

  Further, the portable electronic device 10 executes both the process of generating the information screen and the process of generating the game screen within a predetermined time (frame time), and repeats it every predetermined time. At this time, in each frame time, the process of generating the game screen is executed with priority over the process of generating the information screen, and the process of generating the information screen generates the game screen at the frame time. Is executed after the processing to be completed. The screen image is stored in a separate storage area (the former is the RAM 66 and the latter is the VRAM 56) in each process, and the display target by the liquid crystal display 12 is stored in the VRAM 56 when there is an information screen display operation. The game screen is switched to the information screen stored in the RAM 66. Further, when there is an information release operation, the ideographic object by the liquid crystal display 12 is switched from the information screen stored in the RAM 66 to the game screen stored in the VRAM 56. For this reason, even when the information screen is being generated and displayed, it does not affect the game screen generation process, and the information screen can be suitably displayed during the game.

  Furthermore, according to the portable electronic device 10, when an information screen display operation such as pressing of the home button 36 is performed, the application priority operation member, that is, the direction keys 18u, 18r, 18d, 18l, and the push button after that time are performed. Operation data input using these application priority operation members continues to be used by the game program until it is detected that any of 16a, 16b, 16c, 16d, 14L, and 14R has not been pressed. In this case, the operation data input by these application priority operation members is not used for updating the displayed information screen, that is, for moving the cursor of the element image 96c. When the portable electronic device 10 detects a state where none of the application priority operation members is pressed, an operation invalidation flag is stored in association with operation data input by the application priority operation member. In this case, with respect to the operation data for which the operation invalidation flag is set for the game program, even if the operation data indicating that the operation is actually operated is input, the operation data is not operated instead. Operation data is passed. On the other hand, regardless of the operation invalidation flag, the operation data input by each operation member is passed to the information screen generation program as it is, and the information screen generation program does not change the operation according to the operation invalidation flag. An information screen is generated according to the data. Thus, when an information screen is displayed during the execution of an application such as a game, these operation members are used under a certain condition, that is, until a state where none of the application priority operation members are operated is detected. You can continue the operation for the application that was running.

  The present invention is not limited to the above embodiment. For example, the present invention can be applied not only to the portable electronic device 10 but also to any other computer.

1 is a front external view of a portable electronic device (image display device) according to an embodiment of the present invention. It is a figure which shows the hardware constitutions of the portable electronic apparatus which concerns on embodiment of this invention. It is a figure which shows an example of an application screen. It is a figure which shows an example of an information screen. It is a figure which shows a drawing flag table. It is a figure which shows the operation data buffer and the operation invalidation flag. It is a figure which shows the program structure performed with a portable electronic device. It is a flowchart which shows an information screen process. It is a flowchart which shows an information screen process. It is a flowchart which shows an information screen process.

Explanation of symbols

10 portable electronic devices, 12 liquid crystal displays, 14, 16 push buttons, 18 directional keys, 20 pads, 22 memory access indicators, 24 communication access indicators, 26 speakers, 30 power indicators, 32 hold indicators, 34 strap holders, 36 home buttons , 38 Volume button, 40 Screen button, 42 Sound button, 44 Select button, 46 Start button, 52 Bus, 54 CPU, 56 VRAM, 58 Image processing unit, 60 DMAC, 62 LCD driver, 64 Audio processing unit, 66 RAM, 68 Flash EPROM (information storage medium), 70, 74, 78, 82, 86 interface, 72 operation unit, 76 LED, 80 disk drive, 84 communication unit, 88 battery level sensor, 90 day (Information storage medium), 92 road object, 94 player character object, 96 element image, 100 operation invalidation flag group, 102 operation data buffer, 104 game program (application program), 106 information screen generation program, 108 main program, 110 Operation management program.

Claims (9)

Application screen generating means for generating a given application screen;
Application screen storage means for storing the application screen generated by the application screen generation means;
Operation detecting means for detecting a predetermined information screen display operation;
An information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means;
An information screen storage means different from the application screen storage means for storing the information screen generated by the information screen generation means;
When the information detection operation is detected by the operation detection unit, the display target of the display unit is changed from the application screen stored in the application screen storage unit to the information screen stored in the information screen storage unit. Display object switching means for switching between,
An image display device comprising :
When the information detection operation is detected by the operation detection means, the predetermined time
Generation of the application screen by the application screen generation means, and the information screen
The generation of the information screen by the generation unit is repeatedly performed.
An image display device characterized by that. Application screen generating means for generating a given application screen;
Application screen storage means for storing the application screen generated by the application screen generation means;
Operation detecting means for detecting a predetermined information screen display operation;
An information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means;
An information screen storage means different from the application screen storage means for storing the information screen generated by the information screen generation means;
When the information detection operation is detected by the operation detection unit, the display target of the display unit is changed from the application screen stored in the application screen storage unit to the information screen stored in the information screen storage unit. Display object switching means for switching between,
An image display device comprising :
The information screen display operation is an operation of pressing a predetermined button two or more predetermined times,
When the predetermined button is pressed less than the predetermined number of times, the display operation is performed according to the number of presses.
The brightness of the stage is changed,
An image display device characterized by that. The image display device according to claim 1 or 2 ,
The display means sequentially reads and displays the color data of each pixel constituting the application screen stored in the application screen storage means,
The display object switching means detects a blank period in which the color data of each pixel is sequentially read and not displayed by the display means, and switches the display object of the display means according to the detection.
An image display device characterized by that. Application screen generating means for generating a given application screen;
Application screen storage means for storing the application screen generated by the application screen generation means;
Operation detecting means for detecting a predetermined information screen display operation;
An information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means;
Information screen storage means for storing the information screen generated by the information screen generation means;
When the information detection operation is detected by the operation detection unit, the display target of the display unit is changed from the application screen stored in the application screen storage unit to the information screen stored in the information screen storage unit. Display object switching means for switching between,
When the information screen display operation is detected by the operation detection unit, the application screen generation unit generates the application screen and the information screen generation unit generates the information screen every predetermined time. An image display device characterized by being repeatedly performed. Application screen generating means for generating a given application screen;
Application screen storage means for storing the application screen generated by the application screen generation means;
Operation detecting means for detecting a predetermined information screen display operation;
An information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means;
Information screen storage means for storing the information screen generated by the information screen generation means;
When the information detection operation is detected by the operation detection unit, the display target of the display unit is changed from the application screen stored in the application screen storage unit to the information screen stored in the information screen storage unit. Display object switching means for switching between,
The information screen display operation is an operation of pressing a predetermined button by a predetermined number of times equal to or greater than two, and when the predetermined button is pressed less than the predetermined number of times, Is changed,
An image display device characterized by that. An application screen generation step for generating a given application screen;
The application screen generated in the application screen generation step is the first
Application screen storage step to be stored in the display buffer;
An operation detection step for detecting a predetermined information screen display operation;
The operation detection step An information screen generation step for generating a predetermined information screen when the information screen display operation is detected,
An information screen storage step of storing the information screen generated in the information screen generation step in a second display buffer different from the first display buffer;
When the information screen display operation is detected in the operation detection step, from the application screen stored in the first display buffer to the information screen stored in the second display buffer, A display object switching step for switching display objects;
An image display method including:
When the information screen display operation is detected in the operation detection step, the predetermined time
The generation of the application screen by the application screen generation step and the generation of the information screen by the information screen generation step are repeated.
An image display method characterized by the above. An application screen generation step for generating a given application screen;
The application screen generated in the application screen generation step is the first
Application screen storage step to be stored in the display buffer;
An operation detection step for detecting a predetermined information screen display operation;
The operation detection step An information screen generation step for generating a predetermined information screen when the information screen display operation is detected,
An information screen storage step of storing the information screen generated in the information screen generation step in a second display buffer different from the first display buffer;
When the information screen display operation is detected in the operation detection step, from the application screen stored in the first display buffer to the information screen stored in the second display buffer, A display object switching step for switching display objects;
An image display method including:
The information screen display operation is an operation of pressing a predetermined button two or more predetermined times,
When the predetermined button is pressed less than the predetermined number of times, the display operation is performed according to the number of presses.
Change the brightness of the stage,
An image display method characterized by the above. Application screen generation means for generating a given application screen;
Application screen storage means for storing the application screen generated by the application screen generation means;
Operation detection means for detecting a predetermined information screen display operation;
An information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means;
An information screen storage unit that stores the information screen generated by the information screen generation unit and that is different from the application screen storage unit, and the application screen when the information screen display operation is detected by the operation detection unit A program for causing a computer to function as a display target switching unit that switches a display target of a display unit from the application screen stored in a storage unit to the information screen stored in the information screen storage unit ,
When the information detection operation is detected by the operation detection means, the predetermined time
Generation of the application screen by the application screen generation means, and the information screen
A program for causing the computer to repeatedly generate the information screen by a generation unit . Application screen generation means for generating a given application screen;
Application screen storage means for storing the application screen generated by the application screen generation means;
Operation detection means for detecting a predetermined information screen display operation;
An information screen generating means for generating a predetermined information screen when the information detecting operation is detected by the operation detecting means;
An information screen storage unit that stores the information screen generated by the information screen generation unit and that is different from the application screen storage unit, and the application screen when the information screen display operation is detected by the operation detection unit A program for causing a computer to function as a display target switching unit that switches a display target of a display unit from the application screen stored in a storage unit to the information screen stored in the information screen storage unit ,
The information screen display operation is an operation of pressing a predetermined button two or more predetermined times,
When the predetermined button is pressed less than the predetermined number of times, the computer is caused to change the brightness of the display unit according to the number of times of pressing.
A program characterized by that.

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