JP2014115968A - Input device, and method of magnifying display screen using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an image plane of a display screen from becoming indistinct like a conventional one when the display screen is set to a high-resolution display mode.SOLUTION: The method includes: a step in which an input device receives a notification command from CT (computer device) announcing whether or not OS (operating system) of the computer device provides a system magnifier function or not; a step in which, when the OS supports the use of the system magnifier function, the input device outputs a first magnification command to the CT in response to a pressing force of a function button so as to make a display screen magnified by making the CT start the system magnifier function provided by the OS in response to the first magnification command; and a step in which, when the OS does not support the use of the system magnifier function, the input device starts magnifier software in response to the pressing force of the function button so as to output a second magnification command to the CT for magnifying the display screen.

Description

  The present invention relates to an input device, and more particularly, to an input device of a computer device and a method for executing display screen enlargement using the input device.

  At present, information devices are almost multifunctional, beautiful, light and thin. In order to display a fine and clean screen on the display screen of the information device, the display screen is usually set to a high resolution display mode.

  However, when the display screen is set to the high-resolution display mode, the figures and fonts displayed on the display screen become smaller, so that the user who has poor vision such as myopia, presbyopia, and amblyopia, or the figure displayed on the display screen In addition, there is a drawback that it is difficult for a user who wants to see details of the fonts to see the screen of the display screen. Therefore, at present, some operating systems of information devices have a system magnifier function for enlarging the display screen of the display screen that the user wants to see in detail.

  An object of the present invention is to provide an input device that can eliminate the conventional drawback that it is difficult to see the screen of the display screen when the display screen is set to a high-resolution display mode, and a method for executing enlargement of the display screen by the input device There is to do.

  A method for enlarging a display screen by an input device according to the present invention is a method applied to enlarging a display screen for a computer device, and the input device is an operating system in the computer device and a system magnifier. In response to pressing the function button, the step of receiving a notification command from the computer device to inform whether or not to provide the function and the operating system supports the use of the system magnifier function. Outputting the first enlargement command to the computer device, causing the computer device to activate the system magnifier function provided by the operating system in response to the first enlargement command, and to enlarge the display screen; Supports the use of the system magnifier function If not, the input device includes in response to the pressing of the function button, and outputting the second enlargement command computer device for performing enlarged display screen by activating the magnifier software, the.

  In an embodiment of the present invention, the computer device further includes application software having magnifying glass software, and obtains operating system version information by the application software and generates a notification command including the version information.

  A method for enlarging a display screen by an input device according to the present invention is a method applied to enlarging a display screen for a computer device, and the input device is an operating system in the computer device and a system magnifier. The step of receiving a notification command from the computer device for notifying whether or not to provide a function, and if the operating system supports the use of the system magnifier function, the input device will press the function button and set value In response to the step of outputting the first enlargement command or the second enlargement command to the computer device and the operating system does not support the use of the system magnifier function, the input device responds to the press of the function button, Outputting a second enlargement command to the computer device, and setting Is for setting whether to use the first enlargement command or the second enlargement command to execute enlargement of the display screen. The first enlargement command is a system enlargement provided by the operating system. This is for magnifying the display screen by activating the mirror function, and the second magnifying command magnifies the display screen by activating the magnifying glass software.

  A method for enlarging a display screen by an input device according to the present invention is a method applied to enlarging a display screen for a computer device, and the connection interface of the input device and the computer device are connected. The connection interface receives a transmission signal from the computer device to determine whether the operating system in the computer device provides the system magnifier function, and the operating system supports the use of the system magnifier function. The input device outputs a first enlargement command to the computer device in response to pressing of the function button, thereby causing the computer device to activate a system magnifier function provided by the operating system in response to the first enlargement command. Enlarging the display screen And when the operating system does not support the use of the system magnifier function, the input device outputs a second magnification command to the computer device in response to pressing of the function button. The enlargement command 2 enlarges the display screen by starting up the magnifying glass software.

  In an embodiment of the present invention, the input device further includes application firmware having magnifying glass software, the application firmware acquires operating system version information from the transmission signal, and the operating system in the computer device expands the system based on the version information. Determine whether to provide a mirror function.

  The input device with a display screen enlargement function according to the present invention is applied to enlarge the display screen for a computer device. The input device with a display screen enlargement function includes a control unit, an input operation unit, and a connection interface. The input operation unit includes a function button and is electrically connected to the control unit. The connection interface is electrically connected to the control unit. The control unit determines whether the operating system in the computer device provides a system magnifier function when the connection interface is connected to the computer device. When the operating system supports the use of the system magnifier function, the input device outputs the first enlargement command to the computer device in response to pressing of the function button, thereby causing the computer device to operate according to the first enlargement command. The display screen is enlarged by activating the system magnifier function provided by the system. On the other hand, if the operating system does not support the use of the system magnifier function, the input device outputs the second enlargement command to the computer device in response to the pressing of the function button, thereby causing the computer device to receive the second enlargement command. The display screen is enlarged according to the situation.

  In the present invention, the input device receives a notification command or a transmission signal from the computer device for notifying whether the operating system in the computer device provides the system magnifier function, and the input device presses the function button. Accordingly, by outputting the first enlargement command or the second enlargement command to the computer device, the computer device is caused to enlarge the display screen according to the first enlargement command or the second enlargement command. According to such a mechanism, it is possible to improve the convenience of operation of the input device on a cross platform and the convenience of use for executing enlargement of the display screen. Enlargement can be performed effectively.

3 is a flowchart of a method for executing enlargement of a display screen by the input device according to the first embodiment of the present invention. 7 shows a flowchart of a method for enlarging a display screen by an input device according to Embodiment 2 of the present invention. The functional block diagram of the input device with a display screen expansion function which concerns on Example 3 of this invention is shown.

  Hereinafter, the embodiments of the present invention disclosed in the specification and the drawings are merely examples for explaining the technical contents of the present invention more clearly and helping the understanding of the present invention. It does not limit the range. It will be apparent to those skilled in the art to which the present invention pertains that other variations based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

  DETAILED DESCRIPTION For a better understanding of the features and technical contents of the present invention, refer to the embodiments and drawings according to the present invention. However, the embodiment or the drawings are merely used for explaining or referring to the present invention, and there is no limitation on the present invention.

  FIG. 1 shows a flowchart of a method for executing enlargement of a display screen by the input device according to the first embodiment of the present invention. As shown in FIG. 1, the method for enlarging the display screen by the input device according to the first embodiment is a method applied to enlarging the display screen for the computer device. The method includes the following steps.

  First, in step S101, the input device receives a notification command from the computer device. The input device may be, for example, a mouse, a keyboard, or an electronic drawing board, but is not particularly limited. An electronic peripheral device such as any input device is connected to the computer device via a human interface device class (Human Interface Device Class, HID Class) standard, for example, between a computer device and an electronic peripheral device such as an input device. The identity and function of each are identified. Of course, the computer device notifies the electronic peripheral device such as the input device to send a notification command to the electronic peripheral device such as the input device to notify whether or not the computer device provides the system magnifier function. You may make it set the self-command to do.

  More specifically, application software having magnifying glass software is installed in the computer device. The application software obtains version information of the operating system in the computer device, and generates a notification command based on human interface device class compliance. Further, both the magnifying glass software in the application software and the system magnifying glass function in the operating system can execute enlargement of the display screen.

  Subsequently, in step S103, the notification command informs whether or not the operating system provides the system magnifier function. When the connection interface in the input device and the computer device are electrically connected, the input device receives a notification command from the computer device. Here, the notice command is for informing whether or not the operating system in the computer apparatus provides the system magnifier function. For example, if the operating system is a version such as “Windows Vista” or a version newer than this version, the operating system has a system magnifier function, while the operating system is a version such as “Windows XP” or If the version is older than this version, the operating system does not have a system magnifier function.

  As described above, the input device acquires information on whether or not the computer device provides the system magnifier function from the notification command. If the notification command informs that the operating system provides the system magnifier function, steps S105 and S107 are executed, and the input device transmits the first magnification command to the computer device. On the other hand, if the notification command indicates that the operating system does not provide the system magnifier function, steps S109 and S111 are executed, and the input device transmits the second magnification command to the computer device.

  In the present invention, according to the step of transmitting the first enlargement instruction or the second enlargement instruction to the computer device by the input device, the input device still has a display screen enlargement function even in a different operating system or a different operating system version. Can be executed. Further, the application software determines that the input device transmits the first enlargement command or the second enlargement command to the computer device by transmitting a notification command to the input device.

  When the application software decides to cause the input device to transmit the first enlargement command to the computer device, that is, when the determination result in step S103 is “Yes”, it executes step S105, and the input device presses the function button. In response to this, a first enlargement command is output to the computer device. In an actual application, if the operating system supports the use of the system magnifier function, the input device outputs a first enlargement command to the computer device in response to pressing of the function button, whereby the first enlargement is sent to the computer device. In response to the command, the system magnifier function provided by the operating system is activated to enlarge the display screen.

  More specifically, the input device outputs a first magnification command to the computer device, and the operating system of the computer device activates the system magnifier function of the operating system after receiving the first magnification command. In another embodiment, when the operating system supports the use of the system magnifying glass function, the application software uses the system magnifying glass function or the magnifying glass software to execute enlargement of the display screen according to the setting value. You may make it set whether to use. When the operating system supports the use of the system magnifier function, the input device outputs a first enlargement command or a second enlargement command to the computer device in accordance with the press of the function button and the setting value of the application software. Here, the set value is for setting whether to use the first enlargement command or the second enlargement command to execute enlargement of the display screen. Accordingly, the user can activate the system magnifier function or the magnifier software according to the setting value to enlarge the display screen.

  In this embodiment, the setting value of the application software activates the system magnifier function of the operating system with priority. However, in another embodiment, the setting value of the application software activates the magnifier software with priority. The system magnifier function and the activation of the magnifier software may be set according to user habits or needs, and there is no particular limitation.

  The first enlargement command may be an operating system hot key signal. In practical applications, the first expansion command may include a set of hot key signals. For example, the first magnification command may include a hot key signal for activating the system magnifier function, a time delay signal, and a hot key signal for adjusting the system magnifier function. The hot key signal for starting the system magnifier function is, for example, “Win button” plus “+ button”, and the hot key signal for adjusting the system magnifier function is, for example, “Control button” plus “Alt button” plus. “L button”. Thereby, in step S107, the computer apparatus can start the system magnifier function in the operating system by the first enlargement instruction, and can adjust the enlargement of the display screen in the full screen display or the non-full screen display.

  In another embodiment, the first magnification command may be a serial signal for activating the system magnifier function and adjusting the magnification of the system magnifier function. For example, the first enlargement command is a “Win button” plus “+ button” hot key signal, a time delay signal, and a “Win button” plus “+ button” hot key signal for adjusting the enlargement magnification. You may do it. Thereby, the effect of starting the system magnifier function and adjusting the magnification can be achieved. In short, in this embodiment, there is no particular limitation on the embodiment of the first enlargement command.

  When the application software decides to cause the input device to transmit the second enlargement command to the computer device, that is, when the determination result in step S103 is “No”, it executes step S109, and the input device presses the function button. In response to this, a second enlargement command is output to the computer device. In an actual application, if the operating system does not support the use of the system magnifier function, the input device outputs a second magnification command to the computer device in response to pressing of the function button, thereby causing the computer device to The display screen is enlarged according to the enlargement command.

  More specifically, the input device outputs a second magnification command to the computer device, and the application software activates the magnifier software after receiving the second magnification command. In actual application, the second enlargement command may be, for example, a hot key signal of application software. For example, the second enlargement command may be a mouse button signal or a vendor command (Vender Command) conforming to the USB HID (Human Interface Device) standard. The mouse button signal may be a fourth button signal, a fifth button signal, or a sixth button signal. As a result, the input device outputs the second magnification command to the application software, and the application software activates the magnifier software after receiving the second magnification command. In step S111, the computer apparatus enlarges the display screen using the magnifying glass software activated by the application software executing the second enlargement instruction. In the present embodiment, the embodiment of the second enlargement command is not particularly limited.

  As described above, in the method for enlarging the display screen by the input device according to the present embodiment, the version information of the computer device is acquired by the application software installed in the computer device, and the notification is made based on the human interface device class standard. The command is generated and transmitted to the input device, and the input device outputs the first enlargement command or the second enlargement command to the computer device in response to pressing of the function button. The display screen can be effectively enlarged by the apparatus.

  FIG. 2 is a flowchart of a method for executing enlargement of the display screen by the input device according to the second embodiment of the present invention. As shown in FIG. 2, the method of executing enlargement of the display screen by the input device according to the second embodiment is a method applied to enlargement of the display screen to the computer device. The method includes the following steps.

  First, in step S201, the connection interface of the input device is electrically connected to the computer device. In an actual application, the connection interface may be, for example, a universal serial bus (Universal Serial Bus, USB), a mini universal serial bus (Mini USB), or a micro universal serial bus (Micro USB). There is no particular limitation on the embodiment. The device classification is described in the operating system descriptor (OS descriptor) in the input device. For example, in the operating system descriptor, for example, a human interface device class (for example, 03h), a vendor identification code (Vendor ID) (for example, 046D) obtained by applying to the USB Association, and a vendor set by itself A product identification code (Product ID) (for example, C517) or a version number of the device (Version Number) may be included. These pieces of identification information are for causing the computer device to identify the identity of the input device and its function when the computer device recognizes the connection from the input device.

  Subsequently, in step S203, the input device determines whether the operating system in the computer device provides a system magnifier function based on the transmission signal. In actual application, the input device determines whether the operating system in the computer device provides the system magnifier function according to the transmission signal from the computer device received by the connection interface. Also, when the input device is electrically connected to the computer device via the connection interface, the input device can determine version information of the computer device.

  For example, assume that the version of the input device can be applied to, for example, the Windows Vista version in a computer device. When the input device and the computer device are electrically connected and the computer device supports the version of the input device, the operating system descriptor of the input device requests the computer device to return valid OS_STRING information. To do. In response to this, for example, a computer device in which a Windows Vista version or a version later than this version is installed provides valid OS_STRING information to the input device. On the other hand, if the computer device does not support the version of the input device, the computer device ignores the request to return valid OS_STRING information in the operating system descriptor of the input device, and uses the registry value. For example, a computer device with a Windows xp version or a version older than this version uses the registry value. Thereby, the input device can determine whether the version of the computer device is a version higher than Windows Vista or a version lower than Windows xp. In this embodiment, there is no particular limitation on the embodiment of the electrical connection between the connection interface of the input device and the computer device.

  More specifically, the input device further includes application firmware. The application firmware acquires version information of the operating system from the transmission signal, and determines whether or not the operating system in the computer apparatus provides the system magnifier function based on the version information.

  In addition, for example, an operating system manufactured by Apple and an operating system manufactured by Microsoft differ in detection methods for detecting an electrical connection with an electronic peripheral device such as an input device. For example, if an input device is electrically connected via a connection interface to a computer device that has an Apple operating system installed, the Apple operating system will not detect the keyboard. Detects only the mouse. On the other hand, when the input device is electrically connected to the computer device in which the Microsoft operating system is installed through the connection interface, the Microsoft operating system first detects the mouse and then presses the keyboard. I try to detect it. In other words, when an input device is electrically connected to a computer device having an Apple or Microsoft operating system installed via the interface, the input device is connected to an Apple operating system and a Microsoft operating system. Whether the operating system of the computer apparatus is an Apple operating system or a Microsoft operating system is determined by a different detection method of the operating system.

  The input device acquires information regarding whether or not the computer device provides magnifying glass software according to the transmission signal. If the transmission signal indicates that the operating system provides magnifying glass software, steps S205 and S207 are executed, and the input device transmits the first magnification command to the computer device. On the other hand, if the transmission signal informs that the operating system does not provide the magnifying glass software, step S209 and step S211 are executed, and the input device transmits the second magnification command to the computer device.

  In the present invention, according to the step of transmitting the first enlargement instruction or the second enlargement instruction to the computer device by the input device, the input device still has a display screen enlargement function even in a different operating system or a different operating system version. Can be executed. The application firmware in the input device receives the transmission signal and determines that the input device transmits the first enlargement command or the second enlargement command to the computer device.

  If the operating system supports the use of the system magnifier function, the application firmware decides to cause the input device to transmit a first magnification command to the computer device. That is, if the determination result in step S203 is “Yes”, step S205 is executed, and the input device outputs a first enlargement command to the computer device in response to pressing of the function button. In step S207, the computer device activates a system magnifier function provided by the operating system in response to the first enlargement command to enlarge the display screen.

  If the application firmware determines that the operating system supports the use of the system magnifier function, the application firmware transmits a first magnification command to the computer device via the human interface device class standard. Here, the first enlargement command is a hot key signal of the operating system. Further, since the first enlargement command of the present embodiment is the same as the first enlargement signal of the first embodiment, description thereof is omitted.

  If the operating system does not support the use of the system magnifier function, the application firmware decides to cause the input device to transmit a second magnification command to the computer device. That is, if the determination result in step S203 is “No”, step S209 is executed, and the input device outputs a second enlargement command to the computer device in response to pressing of the function button. In step S211, the computer apparatus enlarges the display screen in response to the second enlargement command.

  More specifically, if the application firmware determines that the operating system does not support the use of the system magnifier function, the input device outputs a second magnification command to the computer device in response to pressing of the function button. Here, the computer device includes application software having magnifier software. When the application software receives the second magnification command, it activates the magnifier software. The second enlargement command is a mouse button signal or a vendor command. Since the second enlargement command in the second embodiment and the second enlargement command in the first embodiment are the same, the description thereof is omitted. Further, both the magnifying glass software and the system magnifying glass function of the operating system can execute enlargement of the display screen, and the function is also the same, and thus detailed description thereof is omitted.

  FIG. 3 is a functional block diagram of an input device with a display screen enlargement function according to the third embodiment of the present invention. As shown in FIG. 3, the input device with a display screen enlargement function according to the third embodiment of the present invention is applied to enlarge the display screen of the computer device 9. The input device with a display screen enlargement function includes a control unit 10, an input operation unit 12, and a connection interface 14.

  The control unit 10 is electrically connected between the input operation unit 12 and the connection interface 14. In actual applications, the control unit 10 is, for example, a central processing unit (CPU) or a microcontroller unit (MCU) for performing signal computation and processing in the input device 1. When the connection interface 14 is electrically connected to the computer device 9, the control unit 10 determines whether the operating system in the computer device 9 provides a system magnifier function. In the present embodiment, the embodiment of the control unit 10 is not particularly limited.

  The connection interface 14 is electrically connected to the control unit 10. In an actual application, the connection interface 14 is, for example, a universal serial bus (USB), a mini universal serial bus (Mini USB), or a micro universal serial bus (Micro USB). In the present embodiment, the type of the connection interface 14 is not particularly limited.

  The input operation unit 12 has a function button 120 and is electrically connected to the control unit 10. In an actual application, the input operation unit 12 is, for example, a mouse right button, a mouse scroll wheel, a mouse displacement sensor, or a keyboard button. In response to pressing, rotation, and movement of the input operation unit 12, the input operation unit 12 generates an input operation signal and transmits it to the control unit 10. Since the function of the input operation unit 12 is well known, its description is omitted.

  When the operating system supports the use of the system magnifier function, the input device 1 outputs a first enlargement command to the computer device 9 in response to the pressing of the function button 120, whereby the first enlargement command is sent to the computer device 9. In response to this, the system magnifier function provided by the operating system is activated to enlarge the display screen. When the operating system does not support the system magnifier function, the input device 1 outputs a second enlargement command to the computer device 9 in response to the pressing of the function button 120, whereby the second enlargement command is sent to the computer device 9. The display screen is enlarged according to the situation.

  For example, assume that the mouse has a function button 120. When the user intends to execute enlargement of the display screen, when the user presses the function button 120 of the mouse, the mouse generates the first enlargement instruction or the second enlargement instruction and outputs it to the computer device 9 to display the display screen. To enlarge. On the other hand, when the user wants to end the enlargement of the display screen, when the user presses the function button 120 of the mouse again, the mouse outputs an end command to the computer device 9, thereby returning the display screen of the operating system to the original state. To do.

  In other embodiments, the user may press the function button 120 multiple times to cyclically activate the system magnifier function, adjust the system magnifier function, or terminate the system magnifier function. It may be. For example, when the function button 120 is pressed for the first time, the mouse generates a first enlargement instruction or a second enlargement instruction and outputs it to the computer device 9 to enlarge the display screen. Do. On the other hand, when the function button 120 is pressed for the second time, the magnification of the display screen is adjusted. For example, the display screen can be adjusted at an enlargement magnification of 3, 4, 5, or multiple times. When the function button 120 is pressed for the third time, the display screen of the operating system is restored to the original state. Further, when the function button 120 is kept pressed for a predetermined time, the above function may be executed. That is, in this embodiment, there is no particular limitation on the mode of the function button 120.

  As described above, in this embodiment, the input device receives a notification command or transmission signal from the computer device to inform whether or not the operating system in the computer device provides the system magnifier function, and the function button By outputting the first enlargement command or the second enlargement command to the computer device in response to the pressing of the display device, the display device is enlarged according to the first enlargement command or the second enlargement command. Therefore, enlargement of the display screen can be effectively executed by the input device even in different operating systems.

  The above-described embodiments are merely preferred embodiments of the present invention, and do not limit the scope of the present invention. Equivalent changes and additions made based on the specification and drawings of the present invention will Are intended to be included within the scope of the claims.

1 Input Device 9 Computer Device 10 Control Unit 12 Input Operation Unit 120 Function Button 14 Connection Interface

Claims (17)

A method for enlarging a display screen using an input device, applied to enlarging a display screen for a computer device,
The input device receives a notification command from the computer device for notifying whether an operating system in the computer device provides a system magnifier function;
When the operating system supports the use of the system magnifier function, the input device outputs the first enlargement command to the computer device in response to pressing of a function button to the computer device. Causing the display screen to be enlarged by activating the system magnifier function provided by the operating system in response to an enlargement command;
If the operating system does not support the use of the system magnifier function, the input device activates the magnifier software in response to pressing of the function button to enlarge the display screen. Outputting an enlargement command of 2 to the computer device;
A method of performing display screen enlargement with an input device comprising:   2. The computer apparatus according to claim 1, further comprising application software having magnifying glass software, wherein the application software acquires version information of the operating system by the application software and generates the notification instruction including the version information. A method for enlarging a display screen by the input device described. The input device outputs the second enlargement instruction to the computer device;
The method of executing enlargement of a display screen by using the input device according to claim 1, wherein the application software receives the second enlargement instruction and activates the magnifying glass software.   The method for enlarging a display screen by using the input device according to claim 1, wherein the first enlargement command is a set of hot key signals.   The first magnification command includes a hot key signal for activating the system magnifier function, a time delay signal, and a hot key signal for adjusting the system magnifier function. 4. A method for enlarging a display screen by using the input device according to any one of 3).   6. The method for enlarging a display screen using an input device according to claim 1, wherein the second enlargement command is a mouse button signal or a vendor command. A method for enlarging a display screen using an input device, applied to enlarging a display screen for a computer device,
The input device receiving a notification command from the computer device for informing whether the operating system in the computer device provides a system magnifier function;
When the operating system supports the use of the system magnifier function, the input device outputs a first enlargement command or a second enlargement command to the computer device according to a press of a function button and a set value; ,
If the operating system does not support the use of the system magnifier function, the input device outputs the second magnification command to the computer device in response to pressing of the function button;
Including
The set value is for setting whether to use the first enlargement instruction or the second enlargement instruction to execute enlargement of the display screen,
The first enlargement instruction is for enlarging the display screen by activating the system magnifier function provided by the operating system,
The second enlargement instruction is for enlarging the display screen by activating a magnifying glass software. A method for executing enlargement of a display screen by an input device.   8. The method for enlarging a display screen using an input device according to claim 7, wherein the first enlargement command is a set of hot key signals.   8. The first magnification command includes a hot key signal for activating the system magnifier function, a time delay signal, and a hot key signal for adjusting the system magnifier function. A method for enlarging a display screen using the input device according to claim 8.   10. The method for enlarging a display screen by using the input device according to claim 7, wherein the second enlargement instruction is a mouse button signal or a vendor command.   The computer device further includes the magnifying glass software and application software having the setting value, and obtains version information of the operating system by the application software and generates the notification instruction including the version information. A method for enlarging a display screen using the input device according to claim 7. A method for enlarging a display screen using an input device, applied to enlarging a display screen for a computer device,
When the connection interface of the input device and the computer device are connected, it is determined whether an operating system in the computer device provides a system magnifier function based on a transmission signal from the computer device received by the connection interface And steps to
When the operating system supports the use of a system magnifier function, the input device outputs a first enlargement command to the computer device in response to pressing of a function button to the computer device. Causing the display screen to be enlarged by activating the system magnifier function provided by the operating system in response to a command;
If the operating system does not support the use of the system magnifier function, the input device includes a step of outputting a second magnification command to the computer device in response to pressing of the function button;
The second enlargement instruction is for magnifying the display screen by activating magnifier software. A method for executing enlargement of a display screen using an input device.   13. The input device according to claim 12, wherein the computer device further includes application software having magnifying glass software, and receives the second magnifying command by the application software and activates the magnifying glass software. To perform display screen enlargement.   14. The method for enlarging a display screen by using the input device according to claim 12, wherein the first enlargement command is a set of hot key signals.   13. The first magnifying command includes a hot key signal for activating the system magnifying glass function, a time delay signal, and a hot key signal for adjusting the system magnifying glass function. A method for enlarging a display screen using the input device according to claim 14.   16. The method for enlarging a display screen by using the input device according to claim 12, wherein the second enlargement command is a mouse button signal or a vendor command. An input device with a display screen enlargement function applied to enlarge the display screen for a computer device,
A control unit;
An input operation unit that includes function buttons and is electrically connected to the control unit;
A connection interface electrically connected to the control unit;
Including
The control unit determines whether an operating system in the computer device provides a system magnifier function when the connection interface is connected to the computer device;
When the operating system supports the use of the system magnifier function, the input device outputs a first enlargement command to the computer device in response to pressing of the function button to the computer device. The display screen is enlarged by activating the system magnifier function provided by the operating system in response to the enlargement instruction of
If the operating system does not support the use of the system magnifier function, the input device outputs a second magnification command to the computer device in response to a press of the function button to the computer device. An input device with a display screen enlargement function, wherein the display screen is enlarged in response to a second enlargement command.

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