TWI382656B - Method and device for displaying and operating a mobile apparatus - Google Patents

Description

Mobile device screen display and operation device and method

The present invention relates to a mobile device, and more particularly to an apparatus and method for screen display and operation of a mobile device.

According to the current mobile device, the vertical screen display (also known as portrait screen display) can not be switched to the horizontal screen display (also known as landscape screen display), because of the operating system of the mobile device (operating) System) and hardware do not support horizontal display. However, the horizontal picture display is closer to the display ratio of the personal computer (PC), especially when browsing the web or viewing the picture, the advantages of the horizontal picture display are more prominent. Therefore, some operating systems have been added to this horizontal screen display function, and allow users to switch between vertical and horizontal screen display, such as Microsoft Windows Mobile 5.0 (not including SmartPhone Edition), Microsoft Windows Mobile 6.0, a few Symbian versions, Apple iPhone Google's Android, etc., the rest of the closed or open mobile device operating system does not provide horizontal display.

In the case where the operating system of the mobile device provides a horizontal screen display function, a directional sensor designed by the mobile device hardware manufacturer, a balance sensor (also referred to as a gravity sensor) ), entity switching buttons, etc., in order to work together. For example, when the user rotates the iPhone to an angle, the screen will change from portrait to landscape; or when the user turns the landscape to the upright position, the screen will automatically switch to portrait display. The software application of the mobile device, for example, the financial watch software is the same as the above-mentioned sensor, and also needs to be operated in the case where the mobile device operating system supports the horizontal screen display. The so-called "operation system does not support horizontal screen display", in fact, the most important point is that the operating system does not provide horizontal text display, meaning that the text can not be displayed on the screen after rotating 90 degrees clockwise or clockwise.

Please refer to the first figure, which is a schematic diagram of the vertical display of the Java financial watch software on the mobile device, which illustrates that it is currently used on a mobile device 10, such as a mobile phone, a PDA, a stock machine, or a screen of less than 7 The screen 14 displayed on the Java Financial Watch software 12 of the Mobile Internet Device/Ultra-Mobile PC is a portrait screen display. The optional group message displayed by the financial watch software 12 on the screen 14 includes: financial watch software function 16, command line 28. Below the mobile device 10 are mainly: a mobile device selection button 20, a mobile device selection button 22, a direction button 24 and a mobile device keyboard 26 for several user controls.

Take the "selection group" in the first figure as an example, where each column represents a different financial product (individual stock or index), and each column represents different quotation information (such as purchase price, selling price). , transaction price...etc.). The advantage of the vertical screen display is that the user can view multiple financial products (columns) at the same time, but can only view limited quote information (fields). If the user wants to view the transaction price of the weighted index, the right button 24b of the direction key 24 shown in the second figure is required to scroll the screen 14 to the right to view the transaction price of the weighted index. If the user wants to view the content of the document 32 (ie, other quotation information fields), then continue to press the right button 24b to scroll the visible information file range 34, as shown in the third figure.

In addition, in the general financial line graph, the X axis (ie, the horizontal axis) is the time axis, and the Y axis (ie, the vertical axis) is the price/quantity axis. As shown in the fourth figure, the financial line is displayed in the vertical screen in the mobile device. Figure (on-the-fly line graph of the day) Due to the limited width of the screen, the time-axis spacing is inevitably compressed, making it difficult to determine the price/quantity at a certain point in time. If the time axis (X-axis) spacing can be enlarged, it is more clear to query the price/quantity at a certain point in time. However, if the time axis spacing is enlarged in the vertical screen display, it is inconvenient for the user to operate the left/right direction key to scroll the screen.

In addition, the technical analysis chart (not depicted in the figure) in the financial watch software is different from the above-mentioned real-time line chart. The real-time map on the day is fixed by the number of tick. If the X-axis is widened, the engraved map can be widened horizontally, which is convenient for the user to check the price/quantity of a certain time point; and if the technical analysis chart is widened by the X-axis More points can be drawn in the picture. If it is a daily chart, you can find more information on the trading days in the widened X axis.

In summary, the vertical picture display of the prior art mobile device financial watch software cannot meet the various needs of the user. For example, when viewing quote information, you sometimes need to view a number of different financial products (ie, vertical screen display), and sometimes you need to view multiple different quote information fields (ie, horizontal screen display); sometimes when viewing live line graphs, sometimes Need to enlarge the price/quantity axis (ie vertical picture display), sometimes need to zoom in the time axis (ie horizontal picture display); when viewing the technical analysis picture, you need to display the horizontal picture to see more information.

Therefore, it is necessary to propose a software that allows the mobile device to display the horizontal picture, so that the mobile device can be installed and used regardless of whether or not the horizontal display operating system is supported, thereby satisfying the potential demand of the user to operate various financial watch software.

The main object of the present invention is to provide a device and method for displaying and operating a mobile device screen, which is mainly for performing a vertical and a horizontal screen display version when developing a Java application software, and adding a switching function to the software to allow The user can switch between the vertical screen display or the horizontal screen display according to the requirements. The switching function can be set in the menu for the user to select, or can correspond to the physical button, for example, press the * button or press the # button or press the # button continuously. In order to switch the screen, the original operating system and the mobile device that does not support the horizontal display can also display the Java application software horizontally.

Another object of the present invention is to provide a device and method for displaying and operating a mobile device screen, which mainly provides a vertical and a horizontal screen display of financial product quotation information, so that the user selects a vertical view when viewing a plurality of financial product information at the same time. The screen is displayed, and the horizontal screen display is selected when you want to view multiple quote information fields at the same time.

Another object of the present invention is to provide a device and method for displaying and operating a mobile device screen, which mainly provides a vertical line diagram of a financial product displayed in a vertical direction and a horizontal picture, so that the user wants to enlarge the X axis (ie, the time axis). When selecting the horizontal screen display, select the vertical screen display when you want to enlarge the Y-axis (ie price/quantity) axis.

A further object of the present invention is to provide a device and method for displaying and operating a mobile device screen, which mainly provides a technical analysis diagram of financial products for vertical and horizontal display, so that the user can display a longer horizontal display. The data of the time range, and the vertical picture display, the data of the shorter time range.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art.

The present invention can be used on the mobile device 10 where the original operating system and the hardware do not support the horizontal screen display function, for example, a mobile phone, a PDA, a stock machine, or a mobile Internet device with a screen of less than 7 inches (Mobile Internet Device/Ultra- Java application software such as Mobile PC). Below, the Java financial watch software will be taken as an example.

In order to achieve the horizontal screen display function, it is first necessary to solve the technical problem that the operating system cannot support the horizontal text display. The present invention provides the following three solutions:

1. Use Java's mobile 3D application interface (Mobile 3D API) to create a 3D graphics object, store the text on a 2D (2D) graphic object, and combine the 2D graphics object. (bind) to the 3D graphics object, and then use the Java Mobile 3D API function to rotate the combined graphic object clockwise or counterclockwise by 90 degrees to display the horizontal text.

2. Use the Scalable Vector Graphics Kit for Java 2 Micro Edition (SVG Kit for J2ME) to generate text in SVG vector graphics format and use the Java Mobile 2D API function to make it clockwise or inverse clock. Rotate 90 degrees to display horizontal text.

3. Use the image file editing program to rotate the text by 90 degrees and save it as a graphic file format. Then load the text of the graphic file format into the program to display the horizontal text.

4. For mobile devices that do not support the Java Mobile 2D API and the Java Mobile 3D API, double buffered memory (Double Buffering) and trigonometric Rotation Algorithm with two buffer memories can be used for instant and dynamic Display the vertical text code to the second display memory (Secondary Buffer) located in the background and generate a text bitmap image, and then repeat the rotation of the bitmap image through the trigonometric rotation algorithm (Rotation Algorithm). The degree becomes a horizontal text image, and finally the horizontal dot matrix image is copied to the foreground display buffer (Primary Buffer), so that an instant and dynamic text information turn can be achieved. The present invention uses a trigonometric function rotation algorithm as follows: (x', y') = (x * cos (A) + y * sin (A) - x * sin (A) + y * cos (A)), where: X = portrait image horizontal coordinate; Y = portrait image vertical coordinate; X' = horizontal image horizontal coordinate; Y' = horizontal image vertical coordinate; A = rotation angle.

The dynamic text information rotation design of the invention is more commonly applied to all mobile phones, PDAs, stock machines, or mobile Internet devices (Ultra-Mobile PCs) with a screen size of less than 7 inches.

However, the Java APIs used in the first and second solutions described above are both "optional packages", meaning that not all virtual machines (VMs) of mobile devices can be implemented ( Implement) The Java API above. For the mobile device Java VM that cannot implement the above Java API, the third solution is required to handle the problem of horizontally displaying characters. If Java introduces other APIs that can display text horizontally in the future, it can also replace the Java API used by the above two solutions.

The file format of the third scheme includes but is not limited to BMP, JPEG/JPG, TIF/TIFF, PNG, GIF, SVG, and the like. Due to the large number of Chinese characters, if all the files are converted into files and loaded into the program, the system resources (especially the memory) of the mobile device will be greatly consumed. Therefore, the Chinese characters are converted into the horizontal display files. In terms of technical problems, the present invention provides the following three solutions:

1. Take a total of about 14,000 words of common words and sub-common words into a horizontal display image file, plus English letters, numbers, symbols.

2. All Taiwan listed/upper cabinet/Xingcai stock names do not repeat Chinese characters. As of the Republic of China in August 1997, there were about 700 words, plus English letters, numbers and symbols. The simplified Chinese character system in mainland China is equally applicable.

3. Only the Chinese characters (such as title, menu, field name) used in the financial watch software, plus English letters, numbers, symbols, all within about 150 words.

If the third method is used to convert the text into a picture file, the stock name is not displayed in the software body, and the stock code of the digital type is displayed for the user to view, so that the use of the image file text can be greatly reduced.

When the user displays the operating software in a portrait picture, it is the same as the prior art operation, as shown in the first figure. The user moves the screen cursor 30 up/down with the up direction key 24a and the down direction key 24c of the direction key 24 to view information of various financial products (such as individual stocks or indices), and the left direction key of the direction key 24 is used. 24d and right arrow keys 24b left/right volume animation surface to view the quotation information field of financial products (such as purchase price, selling price, transaction price, ups and downs, etc.), with the left mobile device selection button A 20 corresponds to the financial watch software function 16 to display the menu on the screen (not depicted in the figure).

In addition to the vertical picture display, the present invention additionally adds a horizontal picture display, as shown in the fifth figure. The fifth figure is a schematic diagram of the corresponding position of the quotation information screen (optional group) and the information file 32 according to the embodiment of the present invention, and the command column 28 is located below the screen display (ie, to the left of the mobile device 10 when standing upright). It can be seen from the fifth figure that although the screen 14 of the mobile device 10 displays fewer information files 32 columns (financial goods), more information files 32 fields (quote information) can be displayed.

The user operates in the same manner as the prior art when viewing the real-time line graph of the financial product displayed on the vertical screen, as shown in the fourth figure. In addition to the vertical screen display real-time line diagram, the present invention further adds a horizontal screen display real-time line diagram, as shown in the sixth figure, which is an embodiment screen of the financial product instant line diagram of the horizontal screen of the present invention, and its command line 28 Located below the screen display (ie, to the left of the mobile device 10 when standing upright). Comparing the sixth picture with the fourth picture, it can be seen that the X-axis (time axis) of the financial product real-time line graph is significantly enlarged when the horizontal picture is displayed, which means that the horizontal width of the picture is widened, which is convenient for the user to view according to the time point. Corresponding price/quantity.

In addition to the above-mentioned self-selected group quotation information and the instant line diagram embodiment, the present invention provides both vertical and horizontal picture display, and the rest of the Java financial watch software information screen (for example, detailed information, production information, after-market, system setting... Also, both vertical and horizontal screen displays are available for users to select according to their needs. Since the horizontal picture display features of the remaining information screens are slightly the same as those of the above embodiment, they are not depicted in the legend.

For the user to switch from the vertical screen display to the horizontal screen display, or from the horizontal screen display to the vertical screen display control, please refer to the seventh figure, which is selected from the menu 36 to select "switch display" in the menu item 38 or to quickly The key is switched. The operation of the menu 36 is the same as that of the prior art, and the user selects the key 36 by pressing the action device selection button 20 of the corresponding financial disk software function 16, and then up/down with the up direction key 24a and the down direction key 24c. The content of the menu item 38 is selected, and finally the mobile device selection key 20 or the direction key middle key 24e is pressed to confirm its selection. The quick key definition can be customized by the program or customized by the user, and can be a button that is not defined by any of the programs in the mobile device keyboard 26. After the quick key is defined, the user can switch the vertical/horizontal picture display mode directly by the quick key without the operation of the menu 36. For example, by pressing the # key (##) twice in succession, you can switch from the portrait screen to the landscape screen or from the landscape screen to the portrait screen.

In order to facilitate the user to operate the direction key and the identification direction key movement direction in a customary manner, when the mobile device 10 rotates 90 degrees counterclockwise and switches to the horizontal picture display, the present invention resets the key value of the direction key 24 to avoid The sense of direction of the chaotic user. In the original vertical picture display, the present invention sets the key value of the up direction key 24a to VK_UP to move the screen cursor upward, and the key value of the right direction key 24b to VK_RIGHT to move the screen cursor to the right, and the down direction key The key value of 24c is set to VK_DOWN to move the cursor down, and the key of the left direction key 24d is set to VK_LEFT to move the cursor to the left. In the horizontal picture display, the present invention sets the key value of the original up direction key 24a to VK_LEFT to move the screen cursor to the left, and sets the key value of the original right direction key 24b to VK_UP to move the screen cursor upward, and the original downward direction. The key value of the direction key 24c is set to VK_RIGHT to move the cursor to the right, and the key value of the original left direction key 24d is set to VK_DOWN to move the cursor down, so that the reset can be performed after the screen is rotated by the user. The direction of movement of the keys of the direction keys 24 corresponds to the direction of the screen, and the direction keys 24 can still be easily operated. As for the other physical keys including the middle key 24e of the direction key, the original key value is not changed by switching the display mode.

Based on the above conclusions, the eighth figure illustrates the device for displaying and operating the mobile device screen of the present invention, and includes the following modules: a vertical screen display module 101, a screen switching operation module 102, a horizontal picture conversion module 103, and a horizontal picture. Operating module 104. The role of the vertical picture display module 101, as previously mentioned, is used to control the vertical picture operation. The function of the screen switching operation module 102 is to provide mutual switching between vertical and horizontal picture display. As mentioned above, there are a number of ways to make design choices for vertical/horizontal or landscape/vertical screen transitions, such as the way menus or quick keys. The function of the horizontal picture conversion module 103, as previously mentioned, is used for text conversion and control of horizontal picture operations, and a method for generating horizontal characters, as described above. The function of the horizontal picture operation module 104, as described above, is to enable the user to perform the operation of the mobile device in the horizontal mode in the horizontal picture display state, which changes the key value of the direction key from portrait to landscape. .

When the horizontal picture conversion module 103 is executed, the horizontal operation module 104 can be synchronously performed to facilitate the user to perform the horizontal operation.

Next, please refer to the ninth figure, which illustrates the method provided by the present invention by a specific operation flow after the program is started, which illustrates switching from the vertical picture display to the horizontal picture display, and then switching from the horizontal picture display to the vertical picture display. The flow chart includes the following steps:

Step 111: Execute the financial watch software, and the financial watch soft system is written in Java language.

Step 112: Execute a vertical picture display program. After the financial watch software is executed, the vertical picture display program is generally executed first to conform to the prior art mobile phone screen display environment.

Step 113: Receive a screen display switching instruction. Similarly, when the user operates the "switch display" in the menu item 38 in the menu 36 in the seventh figure or switches with the shortcut key, the software receives the command to switch. The acquisition of this switching instruction is in fact obtained by the user operating the mobile device. That is, the switch is handed over to the user.

Step 114: Perform a horizontal screen display conversion program. After receiving the screen display switching command, the program can be executed to display the screen as landscape.

Step 115: Perform a vertical picture operation. When the screen display switching instruction is not received, the user can perform a vertical screen operation until the user performs a screen display switching operation.

Step 116: The direction key value is updated to the landscape mode of operation. While performing the horizontal screen display conversion program, the direction key must be executed to be a horizontal operation program, so that the user can easily operate the direction key in a lateral manner.

Step 117: Perform a horizontal picture operation. Then, the user can perform a horizontal screen operation to view other different financial information.

Step 118: Receive a screen display switching instruction. When performing the horizontal screen operation, the user can also operate the "switch display" in the menu item 38 in the menu 36 in the seventh figure or switch with the shortcut key, and the software receives the switching instruction. When the software receives this instruction, it returns to step 112 to execute the vertical picture display program.

In this way, the user can arbitrarily perform vertical to horizontal and horizontal to vertical display through the switching operation of the screen display. You can view the real-time graph of the timeline widening to query the price information by time. Use the horizontal screen display to view the timeline of the timeline widening, you can query the price information according to the time point; when viewing the technical analysis chart, you can view the data of the longer time range; Bit, can refer to multiple field information at the same time. It can be used regardless of whether the operating system and the hardware have a mobile device that supports horizontal display.

In addition, if the preset screen of the mobile device is a horizontal one, the horizontal and vertical images can be easily converted by using the present invention.

The tenth figure is a schematic diagram of another embodiment of the quotation information of the present invention. The command line 28 is located on the right side of the screen when the mobile device 10 is placed horizontally. The layout of the screen layout is adjacent to the physical button by the software function key. The user can clearly understand that the mobile device selection button 20 corresponds to the financial watch software function 16, and the mobile device selection button 22 corresponds to the financial watch software function function 18.

The eleventh figure is a schematic diagram of another embodiment of the instant line diagram of the present invention, and the command line is also located on the right side of the screen when the mobile device 10 is placed transversely.

In summary, the method for horizontal display and operation of the Java financial watch software screen of the mobile device proposed by the present invention can enable the original operating system and the mobile device that does not support the horizontal display to display the Java financial watch software. It allows the user to switch between vertical and horizontal screen display at any time in the software as needed. If the user wants to use the vertical picture display mode of the prior art, the vertical picture display can still be used according to the custom operation mode. The present invention does not exclude the operation method of the prior art vertical picture display, and provides the user with another convenience. View the choice of horizontally displayed information.

The above embodiments are illustrative of the features and spirit of the present invention. The present invention is not limited to the above embodiments, such as switching to a horizontal screen display without limiting the clockwise or counterclockwise display, and the command column is not limited to being placed on the screen. Down/Left/Right, direction key operations are not limited to physical direction keys or screen touch virtual direction keys, information files are not limited to detailed information / optional combination / quote information / Sankei information / instant line map / technical analysis, The API used to make the text horizontally displayed is not limited to the Java Mobile 2D/3D API...etc.

The embodiment of the present invention is exemplified by a mobile device having a keyboard (the mobile phone style is shown), and the other mobile device (such as MID, UMPC, PDA, stock machine) having a keyboard utilizes the operation mode of the present invention and the foregoing legend. The same, no longer repeat them. Other screen touch-type mobile devices (such as mobile phones, MIDs, UMPCs, PDAs, and stock machines) that do not have a keyboard operate in the same manner as the above embodiments, and the difference is a physical button and a virtual button.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

10. . . Mobile device

12. . . Java financial watch software

14. . . Screen

16. . . Financial watch software function

18. . . Financial watch software function two

20. . . Mobile device selection button

twenty two. . . Mobile device selection button two

twenty four. . . Arrow keys

24a. . . Up arrow

24b. . . Right arrow

24c. . . Down arrow

24d. . . Left arrow

24e. . . Arrow key

26. . . Mobile device keyboard

28. . . Command bar (command bar, also known as toolbar)

30. . . Cursor

32. . . Information file

34. . . Screen visible information file range

36. . . Menu

38. . . Menu item

101. . . Vertical picture display module

102. . . Screen switching operation module

103. . . Horizontal picture conversion module

104. . . Horizontal picture operation module

The first picture is a schematic diagram of the Java financial watch software displayed vertically on the mobile device;

The second figure is a schematic diagram of the zoom in direction of the mobile device;

The third figure is a schematic diagram showing the relationship between the vertical display of the screen of the mobile device and the information file;

The fourth figure is a schematic diagram showing the financial line diagram in the vertical screen of the mobile device;

The fifth figure is a schematic diagram of an embodiment of the quotation information of the present invention (the command column is below the screen);

Figure 6 is a schematic diagram of an embodiment of the instant line diagram of the present invention (below the command line screen);

Figure 7 is a schematic view showing a menu embodiment of the present invention;

Figure 8 is a schematic view showing the display and operation of the mobile device screen of the present invention;

Figure 9 is a flow chart showing the method for displaying and operating the mobile device of the present invention;

The tenth figure is a schematic diagram of another embodiment of the quotation information of the present invention (the command column is displayed on the right side of the screen);

The eleventh figure is a schematic diagram of another embodiment of the instant line diagram of the present invention (the command column is on the right side of the screen).

101. . . Vertical picture display module

102. . . Screen switching operation module

103. . . Horizontal picture conversion module

104. . . Horizontal picture operation module

Claims (46)

A device for displaying and operating a mobile device screen comprises: a vertical picture display module for performing a vertical picture display control; and a horizontal picture conversion module for converting the vertical picture display to a horizontal picture display, the horizontal direction The screen conversion module comprises: a text generating module, which rotates one of the characters in the vertical direction to display the text horizontally, and the text generating module uses a mobile three-dimensional (3D) Java application interface to store the text in a a two-dimensional (2D) graphic object, and combining the two-dimensional graphic object onto a three-dimensional graphic object, and then rotating the three-dimensional graphic object by 90 degrees to display the text horizontally; and a picture switching module for switching Performing one of the vertical picture display module and the horizontal picture conversion module. The device of claim 1, further comprising: a horizontal picture operation module, which is executed when the horizontal picture conversion module is executed, and is operated laterally by a direction key. The device of claim 1, wherein the screen switching module comprises: a switching screen option displayed on the mobile device screen for a user to perform a screen switching operation. The device of claim 1, wherein the screen switching module comprises: a shortcut button for a user to perform a screen switching operation. The device of claim 4, wherein the quick key is selected from the group consisting of the screen switching module reservation and the user customization. A device for displaying and operating a mobile device, comprising: a vertical picture display module for performing a vertical picture display control; and a horizontal picture conversion module for converting the vertical picture display to a horizontal picture display, The horizontal picture conversion module comprises: a text generating module, which rotates and displays the text in a vertical direction, and the text generating module uses a Java2 mobile version of the SVG tool kit (Scalable Vector Graphics Kit for Java). 2 Micro Edition, SVG Kit for J2ME), which generates an SVG vector graphic format text and rotates the text of the SVG vector graphic format by 90 degrees in a Java mobile 2D application interface to display the text horizontally; And a picture switching module, configured to switch and execute one of the vertical picture display module and the horizontal picture conversion module. The device of claim 6, further comprising: a horizontal picture operation module, which is executed when the horizontal picture conversion module is executed, and is operated laterally by a direction key. The device of claim 6, wherein the screen switching module comprises: a switching screen option displayed on the mobile device screen for a user to perform a screen switching operation. The device of claim 6, wherein the screen switching module comprises: a shortcut button for a user to perform a screen switching operation. The device of claim 9, wherein the quick key is selected from the group consisting of the screen switching module reservation and the user customization. A device for displaying and operating a mobile device screen comprises: a vertical picture display module for performing a vertical picture display control; and a horizontal picture conversion module for converting the vertical picture display to a horizontal picture display, the horizontal direction The screen conversion module comprises: an image editing module, which rotates a text by 90 degrees and then saves it to display one of the characters in the horizontal direction, and loads the image file to replace the text, thereby causing the text to be displayed horizontally; A picture switching module is configured to switch and execute one of the vertical picture display module and the horizontal picture conversion module. The device of claim 11, wherein the text is a Chinese common word, a Chinese sub-common word, an English letter, a number, and a symbol. The device of claim 11, wherein the text is a non-repeating Chinese character, an English letter, a number, and a symbol included in the stock market. The device of claim 11, wherein the text is a Chinese character and an English letter, a number, and a symbol used by the mobile device. The device of claim 11, further comprising: a horizontal picture operation module, which is executed when the horizontal picture conversion module is executed, and is operated laterally by a direction key. The device of claim 11, wherein the screen switching module comprises: a switching screen option displayed on the mobile device screen for a user to perform a screen switching operation. The device of claim 11, wherein the screen switching module comprises: a shortcut button for a user to perform a screen switching operation. The device of claim 17, wherein the quick key is selected from the group consisting of the screen switching module reservation and the user customization. A device for displaying and operating a mobile device screen comprises: a vertical picture display module for performing a vertical picture display control; and a horizontal picture conversion module for converting the vertical picture display to a horizontal picture display, the horizontal direction The screen conversion module uses a double buffer display memory (Double Buffering) and a trigonometric rotation algorithm (Rotation Algorithm) with a first display memory and a second display memory to perform the conversion of the vertical picture. Operation is a horizontal screen operation, the system will be a text The word is displayed to the second display memory (Secondary Buffer) located in the background and generates a text bitmap image, and the text bitmap image is rotated by 90 degrees into a horizontal text through the trigonometric rotation algorithm (Rotation Algorithm). Image, finally copying the horizontal text image to the first display memory (Primary Buffer) in the foreground, thereby causing the text to be displayed horizontally; and a screen switching module for switching execution of the vertical picture display module One of the horizontal picture conversion modules. The device of claim 19, further comprising: a horizontal picture operation module, which is executed when the horizontal picture conversion module is executed, and is operated laterally by a direction key. The device of claim 19, wherein the screen switching module comprises: a switching screen option displayed on the mobile device screen for a user to perform a screen switching operation. The device of claim 19, wherein the screen switching module comprises: a quick button for a user to perform a screen switching operation. The device of claim 22, wherein the fast key is selected from the group consisting of the screen switching module reservation and the user customization. A method for displaying and operating a mobile device screen, comprising the steps of: performing a vertical screen operation in a Java program and performing a vertical direction key operation; and receiving a screen switching instruction, using a Java mobile three-dimensional (3D) application interface And storing the text on a two-dimensional (2D) graphic object, and combining the two-dimensional graphic object onto a three-dimensional graphic object, and then rotating the three-dimensional graphic object by 90 degrees to display the text horizontally, thereby converting the character The vertical picture operation is a horizontal picture operation, and the vertical direction key operation is switched to a horizontal direction key operation. The method of claim 24, further comprising the step of: when receiving the picture switching instruction during the horizontal picture operation, converting the horizontal picture operation to the vertical picture operation, and switching the horizontal direction key operation to the longitudinal direction Key operation. The method of claim 24, wherein the screen switching instruction uses a switching screen option displayed on the mobile device screen for a user to operate to generate the screen switching instruction. The method of claim 24, wherein the screen switching instruction uses a quick key for a user to operate to generate the screen switching instruction. The method of claim 27, wherein the quick key is selected from the group consisting of the screen switching module reservation and the user customization. A method for displaying and operating a mobile device screen includes the steps of: performing a vertical screen operation in a Java program and performing a vertical direction key operation; and receiving a screen switching instruction, using a Java 2 mobile version of the SVG tool suite (Scalable Vector Graphics Kit for Java 2 Micro Edition, SVG Kit for J2ME), generates a text in SVG vector graphics format, and rotates the text of the SVG vector graphic format by 90 degrees in a Java mobile 2D application interface, making the text horizontal The display, and then the conversion of the vertical picture operation, is a horizontal picture operation, and the vertical direction key operation is switched to a horizontal direction key operation. The method of claim 29, further comprising the step of: when the horizontal screen operation is performed, when the screen switching instruction is received, converting the horizontal picture operation to the vertical picture operation, and switching the horizontal direction key operation to the longitudinal direction Key operation. The method of claim 29, wherein the screen switching instruction uses a switching screen selection And displayed on the mobile device screen for a user to operate to generate the screen switching instruction. The method of claim 29, wherein the screen switching instruction uses a quick key for a user to operate to generate the screen switching instruction. The method of claim 32, wherein the fast key is selected from the group consisting of the screen switching module reservation and the user customization. A method for displaying and operating a mobile device screen comprises the steps of: performing a vertical picture operation in a Java program and performing a vertical direction key operation; when receiving a picture switching instruction, using a graphic editing software to rotate a text 90 After the degree is saved, one of the characters of the text is displayed horizontally, and the image file is loaded in the Java program to replace the text, so that the text is displayed horizontally, and then the vertical picture operation is converted into a horizontal picture operation, and the operation is switched. The vertical direction key operation is a horizontal direction key operation. The method of claim 34, wherein the text is a Chinese common word, a Chinese sub-common word, an English letter, a number, and a symbol. The method of claim 34, wherein the text is a non-repeating Chinese character, an English letter, a number, and a symbol included in the stock market. The method of claim 34, wherein the text is a Chinese character and an English letter, a number, and a symbol used by the mobile device. The method of claim 34, further comprising the step of: when receiving the picture switching instruction during the horizontal picture operation, converting the horizontal picture operation to the vertical picture operation, and switching the horizontal direction key operation to the longitudinal direction Key operation. The method of claim 34, wherein the screen switching instruction uses a switching screen selection And displayed on the mobile device screen for a user to operate to generate the screen switching instruction. The method of claim 34, wherein the screen switching instruction uses a quick key for a user to operate to generate the screen switching instruction. The method of claim 40, wherein the quick key is selected from the group consisting of the screen switching module reservation and the user customization. A method for displaying and operating a mobile device screen comprises the steps of: performing a vertical picture operation in a Java program and performing a vertical direction key operation; and receiving a picture switching instruction, using a first display memory and a The second display memory is a double buffer display memory (Double Buffering) and a trigonometric rotation algorithm (Rotation Algorithm) method for performing the conversion of the vertical picture operation as a horizontal picture operation, displaying a text to the background. The second display memory (Secondary Buffer) generates a text bitmap image, and then rotates the text bitmap image through the trigonometric rotation algorithm (Rotation Algorithm) to form a horizontal character image, and finally The horizontal text image is copied to the first display memory (Primary Buffer) located in the foreground, thereby causing the text to be displayed horizontally, thereby converting the vertical picture operation into a horizontal picture operation, and switching the vertical direction key operation to a horizontal direction Key operation. The method of claim 42, further comprising the step of: when the horizontal screen operation is performed, when the screen switching instruction is received, converting the horizontal picture operation to the vertical picture operation, and switching the horizontal direction key operation to the longitudinal direction Key operation. The method of claim 42, wherein the screen switching instruction uses a switching screen option displayed on the mobile device screen for a user to operate to generate the screen switching. instruction. The method of claim 42, wherein the screen switching instruction uses a quick key for a user to operate to generate the screen switching instruction. The method of claim 45, wherein the fast key is selected from the group consisting of the screen switching module reservation and the user customization.