KR101524594B1 - System and method for controlling for dual processing of display data in a projector portable device - Google Patents

Abstract

The present invention relates to a method and an apparatus for controlling a screen of a portable terminal having a projector function, the method comprising the steps of: activating a projector module in a screen data output method in a portable terminal having a projector function; Generating respective screen data to be transmitted to the display means and the projector module; And binarizing each of the generated screen data and outputting the screen data to the display unit and the projector module, respectively.

Portable terminal, projector, screen data, frame buffer

Description

TECHNICAL FIELD [0001] The present invention relates to a method and a system for controlling screen data in a portable terminal having a projector function,

The present invention relates to a portable terminal (projector portable terminal) having a projector function and, more particularly, to a portable terminal which is provided with screen data provided as a display means of a portable terminal and an external screen And more particularly to an output control method and apparatus for dualizing screen data in a projector portable terminal capable of binarizing screen data.

2. Description of the Related Art [0002] With the recent development of digital technology, various portable terminals capable of communication and personal information processing such as mobile communication terminals, personal digital assistants (PDAs), and electronic notebooks have been introduced. These portable terminals mainly display the screen data to be displayed on a display device provided in the portable terminal itself. However, the size of the display device provided in the portable terminals is generally small due to the limitation of the external size of the portable terminal.

Therefore, the user can view the information displayed on the small display device of the portable terminal alone, but it is difficult to show it to a large number of people. Accordingly, in recent years, a function of displaying information on a portable terminal such as a TV-OUT function on an external large-screen display device so that a large number of people can be viewed together has been developed. In this case, however, have.

That is, the conventional portable terminal displays the screen data on a small screen. At this time, a liquid crystal display (LCD), an organic light emitting diode (OLED), or the like are generally used as a display device of a mobile terminal.

However, the display method in the display device of such a mobile terminal is very inconvenient because the screen data displayed through the small display device is small, and in order to improve the user's satisfaction in the game, digital broadcast viewing, etc., It became necessary to do.

Accordingly, there have been various attempts to provide a portable terminal with an image projection function so as to enjoy images of a larger size. In this example, a mobile terminal equipped with a projector module and capable of providing a large image by using a wall or a floor as an external screen is being researched.

On the other hand, in the case of the mobile terminal having the built-in projector module, the screen data outputted through the display device of the mobile terminal can be outputted directly to the external screen through the projector module. However, when the same screen data is output to the external screen through the display device and the projector module of the portable terminal, there is a problem that the user's action for controlling the screen data is reflected on the external screen as it is.

For example, when the mobile terminal is controlled to control its playback function when playing multimedia data such as moving image data, the change operation is reflected on the external screen as it is. Particularly, when the portable terminal is controlled to control a specific operation during the presentation, the user's behavior is reflected as it is, and the presentation is interrupted.

An object of the present invention is to provide a method and apparatus capable of separately outputting screen data displayed through a display device of a portable terminal and screen data output to an external screen by a projector function in a portable terminal having a projector function, .

It is another object of the present invention to provide a portable terminal having a projector function that binarizes screen data of a mobile terminal and screen data output to an external screen when outputting screen data to an external screen using a projector module, And to control the operation of the screen data of the external screen according to the screen data of the portable terminal.

According to another aspect of the present invention, there is provided a method of outputting screen data in a mobile terminal having a projector function, the method comprising the steps of: activating a projector module; Generating respective screen data to be transmitted to the display means and the projector module; And binarizing each of the generated screen data and outputting the screen data to the display unit and the projector module, respectively.

In the embodiment of the present invention, each of the screen data includes screen data for display means to be displayed by the display means and screen data for a projector to be displayed on the external screen through the projector module, And the screen image data is output as common screen data or binary screen data.

According to a preferred embodiment of the present invention, the common screen data and the binary screen data are provided in a time-division manner to the display means and the projector module in a time-division manner.

According to another aspect of the present invention, there is provided a system for outputting screen data of a portable terminal, the system comprising: Gt; Means for outputting the display data for the display means and the screen data for the projector as common screen data or binary screen data in response to the performance of the function; Means for displaying the screen data for the display means of the common screen data or the binary screen data; And means for outputting the screen data for the projector of the common screen data or the binary screen data to an external screen.

According to a preferred embodiment of the present invention, the common screen data includes two pieces of screen data having the same screen configuration as the screen data for the display means and the projector screen data, and the dual screen data includes screen data for the display means, And the data includes two screen data having different screen configurations. In the embodiment of the present invention, the screen data for the display means of the binary screen data includes a virtual item for controlling the function of the screen data for the projector of the binary screen data, and the screen data for the projector of the binary screen data is stored in the portable terminal And an information item for providing execution screen data corresponding to the function execution and various information according to the user setting.

According to the embodiment of the present invention, screen data for display means and screen data for a projector of common screen data and binary screen data are sequentially alternately outputted in a time-division manner.

According to another aspect of the present invention, there is provided a portable terminal having a projector function. The portable terminal includes a display unit for displaying the display data, A controller for generating and outputting screen data for a projector having a module as a destination; Display means for displaying screen data for display means output from the control means; And a projector module for outputting projector screen data output from the controller to an external screen.

According to another aspect of the present invention, there is provided a screen data output apparatus for a portable terminal, the screen data output apparatus including: a display unit for generating respective screen data to be transmitted to a display unit and a projector module; A control unit for performing a binary processing and outputting it in a time-sharing manner; Storage means for buffering screen data transmitted to the display means and the projector module; An LCD driver module for extracting screen data having the destination of the display unit among the screen data buffered by the storage unit and delivering the screen data; Display means for displaying screen data transmitted from the LCD driver module; The projector module extracts screen data to be output to an external screen among the screen data buffered in the storage unit and outputs the extracted screen data to the external screen.

As described above, according to the method and apparatus for controlling the screen data in the mobile terminal having the projector function, when the screen data is output to the external screen using the projector module in the portable terminal having the projector function, The screen data provided to the display means and the screen data provided to the external screen can be binarized. Accordingly, it is possible to operate the screen data provided on the external screen by using the screen data provided on the portable terminal, and continuously provide the screen data according to the projector function through the external screen without visual interference Do.

According to the present invention, in a portable terminal incorporating a projector module, screen data of a portable terminal and presentation screen data provided through an external screen are binarized and output separately during presentation using the projector module, There is an advantage that the presentation can be conveniently performed without interfering with the presentation screen.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference numerals as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted.

The present invention relates to a portable terminal having a projector function. Particularly, in the embodiment of the present invention, when a portable terminal incorporating a projector module outputs screen data to an external screen using the projector module, the screen data provided to the display means of the portable terminal and the screen data provided to the external screen The present invention proposes a method and an apparatus capable of outputting and displaying separate screen data by binarizing data.

The portable terminal of the present invention includes a projector function as described above, and includes a multimedia data playback function, a digital broadcast reception and playback function, a document viewer function, and the like. In addition, the portable terminal of the present invention can enlarge and provide screen data according to the functions performed by the projector function to an external screen when the functions of the multimedia data reproduction, the digital broadcast reproduction, and the document viewer are performed . In the embodiment of the present invention, the case where the screen data provided to the display means of the portable terminal and the screen data provided to the external screen through the projector module are outputted identically is referred to as a common screen data output, Quot; output screen data " and " screen data provided to the external screen through the projector module are output in a different manner.

Hereinafter, an example of a portable terminal having a projector module according to an embodiment of the present invention and a configuration for binarizing output screen data in a portable terminal having such a projector module will be described with reference to the accompanying drawings do. However, it should be noted that the configuration of the portable terminal of the present invention and the configuration of its duality processing are not limited to those described below, and thus can be applied to various embodiments based on the following embodiments.

1 to 3 are views schematically showing an example of a mobile terminal according to an embodiment of the present invention. Particularly, FIGS. 1 to 3 illustrate exemplary types of portable terminals having a projector module.

1 to 3, FIG. 1 illustrates an example of a portable terminal having a full touch-screen having an input / output function at the same time, FIG. 2 illustrates an example in which the display means and the input means are distinguished from each other FIG. 3 illustrates an example of a portable terminal of a bar type, and FIG. 3 illustrates an example of a portable terminal of a type comprising a touch screen and a touch pad.

1 to 3, the portable terminal of the present invention includes display means 100 for outputting various screen data according to the performance of a portable terminal, input means 200 for receiving a user's control signal, A projector module 300 for enlarging screen data transmitted from a mobile terminal and projecting the enlarged screen data to an external screen, a focus control means 350 for controlling the focus of the projector module 300, And a speaker (SPK) for outputting various audio data corresponding to the audio data.

The portable terminal of the present invention may include a front camera module 400 for a video communication service, a camera module (not shown) for shooting a subject by a general camera function, And a broadcast receiving module (not shown) for receiving digital broadcasting and reproducing the digital broadcasting according to the portable terminal type.

Hereinafter, an internal configuration for controlling the screen data in the portable terminal of the present invention as illustrated in the examples of FIGS. 1 to 3 will be described with reference to FIG. However, it should be noted that the configuration of the portable terminal of the present invention is not limited to the following description, and thus can be applied to various embodiments based on the following embodiments.

In particular, a mobile communication terminal of the present invention will be described below as a representative example. However, the portable terminal of the present invention is not necessarily limited to the mobile communication terminal, and may include a portable terminal applied to various fields according to the providing mode.

Accordingly, the portable terminal of the present invention can be applied to all mobile communication terminals that operate based on communication protocols corresponding to various communication systems, including a portable projector module, a portable multimedia player (PMP) including a projector module, A multimedia player, a broadcasting player, a PDA (Personal Digital Assistant), a portable game terminal, a smart phone, and the like. Hereinafter, a schematic structure of a mobile terminal according to the present invention will be described with reference to FIG.

4 is a block diagram of a portable terminal according to an embodiment of the present invention. In particular, FIG. 4 illustrates a mobile terminal supporting the mobile communication service according to an embodiment of the present invention. However, the mobile terminal of the present invention is not limited to the mobile terminal.

1 to 4, a portable terminal according to an exemplary embodiment of the present invention includes a radio frequency unit 400, an input / output unit 500, an audio processing unit 600, a storage unit 700, A module 300, a control unit 800, and the like. In addition, the input / output means 500 may include the display means 100 and the input means 200. The display means 100 may be provided as a liquid crystal display (LCD), an organic light emitting diode (OLED), or a touch screen. The input unit 200 may include at least one of a touch pad, a keypad, a dome key, and a function key, or a combination thereof. The portable terminal may further include a focus control unit 350 for controlling the focus of the projector module 300, as shown in FIG. 1 to FIG.

The radio frequency unit 400 performs communication of the portable terminal. The radio frequency unit 110 forms a communication channel with a supportable mobile communication network and performs communication such as a voice call, a video telephony call, and a data communication do. The RF unit 110 may include an RF (Radio Frequency) transmitter for up-converting and amplifying the frequency of a transmitted signal, an RF receiver for low-noise amplifying the received signal and down-converting the frequency of the received signal. The radio frequency unit 110 may be omitted according to the form of the mobile terminal of the present invention.

The input / output means (500) may comprise the display means (100) and the input means (200). The input / output means 500 may be constituted only by the display means 100 according to the form of the portable terminal. In this case, the display means 100 is preferably provided as a touch screen. The touch screen includes input and output means for simultaneously performing an input function and a display function. In particular, the touch screen includes a display region such as an LCD or an OLED and a touch region made up of a touch sensor.

The display area displays various screen data generated during the function of the portable terminal, and displays status information according to a user's operation, function setting, and the like. That is, the display area may display various screen data related to the state and operation of the portable terminal. The display area visually displays various signals and color information output from the controller 800. In particular, the display area may display screen data generated by the controller 800 when the portable terminal performs a projector function, or may display screen data of a specific GUI (Graphical User Interface) for function control. That is, the display area displays any one of the common screen data and the binary screen data generated by the control unit 800 when the portable terminal performs the projector function. The binary screen data provided through the display area displays a virtual item which is variable in correspondence with the execution application with a GUI.

The touch area receives an input event of a user. In particular, the touch area receives a tap event, a drag event, a flick event, and a sweep event for function control according to an execution application of the portable terminal. When the input event of the user is inputted, the touch area transmits the coordinate information in which the input event occurs to the controller 800. [ That is, the touch area senses a touch generated by a user, generates a signal corresponding to the touch, and transmits the signal to the controller 800. [

The input unit 200 receives various character information, and transmits signals to the control unit 800 in connection with setting various functions and controlling functions of the portable terminal. The input means 200 may include at least one input means such as a keypad, a function key, a dome key and a touch pad for generating an input signal according to a user's action. In the embodiment of the present invention, the input means 200 may be omitted depending on the provision of the portable terminal.

The audio processing unit 600 is connected to a microphone (MIC) and a speaker (SPK) and outputs a voice signal input from the microphone (MIC) to the control unit 800. The control unit 800 To the speaker SPK through the speaker SPK. That is, the audio processing unit 600 converts the analog audio signal input from the microphone (MIC) into a digital audio signal or converts the digital audio signal input from the control unit 800 into an analog audio signal. The audio processing unit 600 can reproduce various audio components (for example, audio data based on video / music file playback) generated by the portable terminal according to user's selection. The audio signal processing function of the audio processing unit 600 may be omitted depending on the type of the portable terminal provided in the present invention.

The storage unit 700 may include a read only memory (ROM) and a random access memory (RAM). The storage unit 700 may store various data generated and utilized by the portable terminal. The data includes data generated according to application execution of the mobile terminal and all types of data generated using the mobile terminal or received from an external (base station, a counterpart mobile terminal, personal computer, etc.) and stored. In particular, the data may include at least one of a user interface provided by the portable terminal, various setting information according to the portable terminal, multimedia data such as a virtual item, a moving picture file, and a music file, Setting information for operation control according to the projector function, and the like.

In addition, the storage unit 700 may store an application for controlling the general operation of the portable terminal and an application for output control through the screen data binarization process of the present invention. The application of the present invention may be an application corresponding to the operation of the present invention and the operation described in the following figures, as described in Figs. 1 to 4 described above. These applications may be stored in an application storage area (not shown) of the storage unit 700. The storage unit 700 may include one or more buffers for temporarily storing data generated during execution of the application and functions of the portable terminal.

The projector module 300 is built in the portable terminal and enlarges various screen data provided from the controller 800 through a lens and outputs the expanded screen data to an external screen. That is, the projector module 300 represents a device capable of projecting various screen data processed by the control unit 800 without distortion on an external screen.

The controller 800 performs overall control functions for the portable terminal and controls signal flow between the blocks in the portable terminal. The control unit 800 receives signals between respective components such as the radio frequency unit 400, the input / output unit 500, the audio processing unit 600, the storage unit 700, and the projector module 300, Control the flow.

In particular, the controller 800 processes screen data output through the display unit 100 and screen data output through the projector module 300 when the projector functions in the embodiment of the present invention. The control unit 800 binarizes the screen data transmitted to the display unit 100 and the projector module 300 into common screen data or binarization screen data corresponding to the executing application. Then, the common screen data or the binary screen data to be subjected to the binarization processing is transmitted to the display means 100 and the projector module 300, and the display of the screen data is controlled.

That is, the control unit 800 processes the output of the common screen data to the display unit 100 and the projector module 300 according to the type of the screen data generated in response to the execution of the application, (100) and the projector module (300).

The control unit 800 for controlling such operations may control the overall operation described with reference to the overall operation of the present invention and the drawings described below as described in the description with reference to Figs. 1 to 4 described above. The function control of the controller 800 may be implemented by software to process the operation of the present invention. The detailed operation of the controller 800 will be described later with reference to the drawings.

1 to 4, a schematic configuration example of the portable terminal is shown for convenience of explanation. However, the portable terminal of the present invention is not necessarily limited to the above configuration.

Accordingly, the controller 800 may include a baseband module for the mobile communication service of the portable terminal. The baseband module may be provided in the control unit 800 and the radio frequency unit 400 or separately from the control unit 800 and the radio frequency unit 400.

1 to 4, the portable terminal of the present invention may include a camera module capable of acquiring image data according to a mode of providing a subject, a short-range communication module for short-range communication, And an Internet communication module that performs an Internet function by communicating with the network.

These components can not be enumerated because of the wide variety of variations according to the convergence trend of the digital device. However, components having the same level as the above-mentioned components are further included in the portable terminal . In addition, the portable terminal of the present invention may exclude specific configurations from the above configuration or be replaced with other configurations according to the provision mode of the portable terminal of the present invention. Which will be readily apparent to those skilled in the art.

In addition, in the embodiment of the present invention with reference to Figs. 1 to 4, the case where the portable terminal includes a touch screen has been described as an example. However, the portable terminal of the present invention and its operation are not necessarily limited to those using a touch screen. Therefore, it is needless to say that the display means composed of the LCD or the OLED and the input means made up of the keypad and / or the touchpad are distinguished from each other, and the display means and the input means can be operated by a combination of the display means and the input means.

5 and 6 are views schematically illustrating an exemplary configuration for binarizing output screen data in a mobile terminal having a projector function according to an embodiment of the present invention.

As shown in FIGS. 4 to 6, a configuration for dualizing screen data in a mobile terminal having a projector function of the present invention includes a control unit 800, a frame buffer 750, an LCD A portable terminal including a driver module (LCD Driver Module) 150, a display means 100, a projector module 300, and the like, and a portable terminal for displaying screen data projected through the projector module 300 An external screen 900 and the like.

5 and 6, the frame buffer 750 may include a DPRAM (DUAL-PORT RAM) for inter-process communication for data sharing. The frame buffer 750 buffers the common screen data or the dual screen data transmitted from the controller 800 and transmits the screen data to the LCD driver module 150 or the projector module 300 corresponding to the destination of each screen data. . In this case, in the embodiment of the present invention, the frame buffer 750 may be operated in a single configuration as shown in FIG. 5, or may be configured as an LCD frame buffer 751 and a projector frame buffer 753 ). ≪ / RTI >

4 to 6, the user can activate the projector function built in the portable terminal by using an input means or the like formed in the portable terminal. Then, the control unit 800 of the portable terminal drives the projector module 300 in response to the activation of the projector function. Here, it is assumed that the portable terminal displays specific screen data corresponding to a user request through the display means 100 before activating the projector function.

Then, the control unit 800 generates screen data identical to the information displayed on the display means 100 of the portable terminal, that is, the screen data, and provides the screen data to the projector module 300. Hereinafter, screen data of the same type provided on the display means 100 and the external screen 900 will be referred to as common screen data. The common screen data represents each of two screen data having the same screen configuration. That is, the common screen data is divided into screen data provided to the LCD driver module 150 and screen data provided to the projector module 300.

Next, during the output of the common screen data through the display means 100 and the external screen 900 through the LCD driver module 150 and the projector module 300, The control unit 200 may perform control on a specific object of the screen data provided to the display unit 100. [ Here, the object represents an icon of a content capable of executing a specific application such as a moving picture or digital broadcasting player, an image viewer, and a text viewer, and an icon capable of entering a specific menu.

Accordingly, when the control request of the user for the object occurs, the controller 800 can sense that the control request is an execution command for executing the specific function corresponding to the object.

When the control unit 800 detects the execution command, the control unit 800 provides the screen data transmitted to the projector module 300 and the screen data transmitted to the display unit 100 differently from each other. That is, the control unit 800 separately generates screen data to be displayed through the display unit 100 and screen data to be output to the external screen 900 through the projector module 300, and provides the screen data separately . Hereinafter, different types of screen data provided on the display means 100 and the external screen 900 will be referred to as dual screen data.

The binary screen data represents each of two screen data having different screen configurations. That is, the dual screen data is divided into screen data provided to the LCD driver module 150 and screen data provided to the projector module 300.

Here, among the binary screen data, the screen data (hereinafter, referred to as 'projector screen data') provided to the projector module 300 may be screen data corresponding to the function execution mapped to the object. That is, the projector screen data is screen data of a specific application that is executed according to a user's execution command for the object, and includes moving picture screen data, image screen data, and document screen data (hereinafter, referred to as 'presentation screen data' And so on.

The screen data (hereinafter, referred to as 'screen data for display means') provided to the LCD driver module 150 among the dual screen data is displayed on the external screen 900 through the projector module 300 (GUI screen data) made up of virtual items corresponding to the executing application, as screen data for operation of the projector screen data, i.e., function control corresponding to the screen data for the projector. Screen examples of such binary screen data are shown in the following figures.

When the projector function is performed, the controller 800 generates screen data of a screen configuration (e.g., a menu screen, a list screen, or a specific application execution screen) corresponding to a user request To the frame buffer 750. That is, the control unit 800 generates screen data having the same screen configuration as that of the screen data (screen data for display means) provided through the display means 100. That is, the control unit 800 generates screen data (projector screen data) to be provided through the projector module 300, and divides the screen data for the display unit and the screen data for the projector, that is, the common screen data, And transmits the frame buffer 750 to the frame buffer 750.

However, if the application is running in the portable terminal at the time of activating the projector function or the execution mode at that point in time of the portable terminal, the common screen data is not output , It is needless to say that the binarization process for outputting binary screen data can be performed immediately. The binary processing of the binary screen data will be described later.

At this time, the common screen data to be transmitted to the frame buffer 750 has the same screen configuration, and two screen data (projector screen data and screen data for display means) are transmitted to the frame buffer 750 . That is, the common screen data includes screen data (display data for display means) to be displayed through the display means 100 and screen data to be displayed on the external screen 900 through the projector module 300 Screen data).

When the frame buffer 750 is divided into an LCD frame buffer 751 and a projector frame buffer 753 as shown in FIG. 6, the display data for the display unit, among the common screen data, Buffer 751 and the projector screen data of the common screen data can be transmitted to the projector frame buffer 753. [

Meanwhile, the control unit 800 may transmit the common picture data to the frame buffer 750 through a data bus. The controller 800 controls the LCD driver module 150 and the projector module 300 to provide common screen data to the LCD module 150 and the projector module 300 in a time division manner, To each destination. That is, the control unit 800 can alternately transmit the common data (screen data for display means and screen data for the projector) to the LCD driver module 150 and the projector module 300, respectively.

The LCD driver module 150 fetches common screen data to be stacked on the frame buffer 750 and transfers the common screen data to the display unit 100. At this time, the LCD driver module 150 transfers the screen data for the display means among the common screen data to the display means 100 in the frame buffer 750. If the frame buffer 750 is divided into an LCD frame buffer 751 and a projector frame buffer 753, the LCD driver module 150 may display common screen data stacked in the LCD frame buffer 751 To the display means (100).

The display unit 100 displays the common screen data transmitted through the LCD driver module 150. At this time, the displayed common screen data has the same screen configuration as the common screen data displayed through the external screen 900. This screen example will be described later.

The projector module 300 fetches common screen data stacked in the frame buffer 750 and outputs the common screen data to the external screen 900. At this time, the projector module 300 outputs the screen data for the projector among the common screen data to the external screen 900 in the frame buffer 750. If the frame buffer 750 is divided into the LCD frame buffer 751 and the projector frame buffer 753, the projector module 300 transmits common picture data stacked in the projector frame buffer 753 to the external And outputs it to the screen 900.

The external screen 900 displays common screen data output through the projector module 300. The external screen 900 can utilize components of a particular device (e.g., a white screen, etc.) or utilize elements such as walls, floors, and the like. That is, the external screen 900 is not configured in the portable terminal of the present invention, but represents any type of object through which the screen data output through the projector module 300 can be projected.

Meanwhile, if an execution command is issued by a user from a user while displaying the common screen data according to the driving of the projector module 300 through the display unit 100 and the external screen 900 as described above, (800) generates binary screen data corresponding to the execution command. Here, the binary screen data represents screen data for a projector and screen data for a display means having different screen configurations.

Here, the projector screen data may be execution screen data of an application corresponding to the object in which the execution command is generated, and the screen data for the display means may correspond to the projector screen data, that is, GUI screen data for control.

That is, when the execution command is received, the controller 800 generates binary screen data corresponding to the execution application and transfers the screen data to the frame buffer 750. The control unit 800 controls the display unit 100 to display function control screen data corresponding to an execution application to be displayed, that is, screen data for display means (GUI screen data) Generates execution screen data corresponding to the execution application to be displayed on the external screen 900, that is, projector screen surface data, and binarizes the screen data for display and the projector screen data, that is, (750).

At this time, the binary screen data to be transmitted to the frame buffer 750 has a different screen configuration, and the frame buffer 750 stores two different binary screen data (projector screen data and screen data for display means ) Can be delivered. That is, the binary screen data is composed of screen data for the projector (execution screen data) to be displayed on the external screen 900 according to the execution command, and a virtual item for controlling the function of the application executed in response to the execution command (GUI screen data) for display means to be displayed through the display means 100.

6, when the frame buffer 750 is divided into the LCD frame buffer 751 and the projector frame buffer 753, the screen data for the display means (GUI screen data Is transmitted to the LCD frame buffer 751, and the screen data for the projector (execution screen data) of the binary screen data can be transmitted to the projector frame buffer 753. [

The controller 800 may transmit the dual screen data to the frame buffer 750 through a data bus and the controller 100 may transmit the dual screen data to the LCD driver module 150 ) And the projector module 300, that is, the time division method, the binary image data can be transmitted to the corresponding destination. That is, the control unit 800 alternately outputs the corresponding dual screen data (screen data for display means and screen data for the projector) alternately in a time-division manner so that the corresponding dual screen data is transmitted to the LCD driver module 150 and the projector module 300 Respectively.

The LCD driver module 150 fetches the binary screen data to be stacked on the frame buffer 750 and transfers the same to the display means 100. At this time, the LCD driver module 150 transfers the screen data for the display means among the binary screen data to the display means 100 in the frame buffer 750. If the frame buffer 750 is divided into the LCD frame buffer 751 and the projector frame buffer 753, the LCD driver module 150 may display the dual screen image data stacked in the LCD frame buffer 751 To the display means (100).

The display unit 100 displays dual screen data transmitted through the LCD driver module 150. At this time, the displayed dual screen data, that is, the screen data for the display means, has a different screen configuration from the dual screen data displayed through the external screen 900, that is, the projector screen data (execution screen data) The screen data may have a screen configuration made up of virtual items for controlling the actual operation of the screen data for the projector. This screen example will be described later.

The projector module 300 fetches the binary screen data stacked in the frame buffer 750 and outputs the binary screen data to the external screen 900. At this time, the projector module 300 outputs the screen data for the projector among the dual screen data to the external screen 900 in the frame buffer 750. If the frame buffer 750 is divided into the LCD frame buffer 751 and the projector frame buffer 753, the projector module 300 transmits the dual screen image data stacked in the projector frame buffer 753 to the external And outputs it to the screen 900.

The external screen 900 displays binary screen data output through the projector module 300. At this time, the dual screen data displayed on the external screen 900, that is, the screen data for the projector has a screen configuration different from the screen data for the dual screen displayed through the display means 100, that is, the screen data for the display means, (Presentation screen data such as moving picture playback screen data, image playback screen data, digital broadcast playback screen data, text screen data, and the like) corresponding to the playback screen data. The execution screen data, that is, the screen data for the projector, can be changed according to the control inputted through the screen data for the display means. This screen example will be described later.

The present invention has been described above with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. Next, a description will be given of a method of screen data conversion in a mobile terminal according to the present invention. However, it should be noted that the operation of the portable terminal of the present invention is not limited to the following description, and thus can be applied to various embodiments based on the following embodiments.

7 is a diagram illustrating a method of processing screen data in a portable terminal having a projector function according to an embodiment of the present invention.

Referring to FIGS. 1 to 7, first, the mobile terminal drives the projector module 300 in response to a request for a projector function of a user (step S701). That is, the user can activate the projector function built in the portable terminal using input means such as a specific button or key. In addition, the user can activate the projector function through a specific menu entry. Here, it is assumed that the portable terminal displays specific screen data corresponding to a user request through the display means 100 before activating the projector function.

Next, when the projector module 300 is driven, the portable terminal generates screen data that is the same as the screen data displayed on the display unit 100 and provides the screen data to the projector module 300 (step S703). That is, the portable terminal generates screen data (screen data for display means) to be provided to the display means 100 and screen data (projector screen data) to be provided to the projector module 300 as common screen data , Binarizes the common screen data, and outputs it to the display means 100 and the projector module 300, respectively.

In step S703, the portable terminal sends screen data (projector screen data) having the same screen configuration as the screen data (screen data for display means) displayed on the display means 100 to the projector module 300 To the external screen (900). That is, in step S703, the portable terminal outputs the projector screen data to the projector module 300 in the form of the screen data displayed on the display unit 100 at present. In this process, the portable terminal simultaneously outputs the LCD data to the LCD driver module 150 and the LCD driver module 150 using a time division method to simultaneously output the screen data to the display unit 100 and the external screen 900 through the projector module 300, The screen data can be transmitted to the projector module 300.

7 illustrates an example in which the common screen data is provided in the initial stage. However, if the application running in the portable terminal or the execution mode at the corresponding point in time of the portable terminal at the time of activating the projector function, It is needless to say that the binary screen data output can be performed immediately after the binarization processing.

Next, while displaying the common screen data according to the driving of the projector module 300 through the display means 100 and the external screen 900 as described above, the portable terminal displays an execution command based on the specific object from the user (Step S705). That is, the user can select a specific object to be executed among the objects constituting the screen data provided through the display means 100, and control the execution accordingly. At this time, the portable terminal can continuously provide the progress status according to the execution control of the user through the display means 100 and the external screen 900 in the same form of screen data.

Next, when the mobile terminal detects the execution command, it generates binary screen data corresponding to the execution command (step S707). The binary screen data represents projector screen data having different screen configurations and screen data for display means. That is, the portable terminal generates screen data for a projector to be transmitted to the projector module 300 and screen data for display means to be transmitted to the display means 100. [ Here, the projector screen data may be execution screen data of an application corresponding to the object in which the execution command is generated, and the screen data for the display means may correspond to the projector screen data, that is, And may be screen data for control.

For example, the projector screen data may be presentation screen data such as moving picture playback screen data, digital broadcast playback screen data, image playback screen data, document screen data, and the like. And screen data for function control of the screen image data. For example, the screen data for the display means may include screen data for controlling the moving picture playback function, screen data for controlling the digital broadcast playback function, screen data representing an image list such as a picture file, page switching, And the like.

Next, the portable terminal displays screen data for display means corresponding to an execution application to be displayed through the display means 100 and a projector corresponding to an execution application to be displayed on the external screen 900 through the projector module, And then outputs the generated screen data for display means and the projector screen data, that is, the dual screen data, to the display means 100 and the projector module 300, respectively (Step S709). In step S709, the portable terminal outputs the screen data for the projector to the external screen 900 through the projector module 300, and displays screen data for display means capable of performing control related to the function control of the projector screen data Through the display means (100).

In response to the user's control using the screen data for the display means provided through the touch screen 100, the portable terminal displays the screen data for the projector, which is output to the external screen 900 through the projector module 300 Can be performed. The control method using the binary screen data will be described with reference to a screen example to be described later.

FIG. 8 is a diagram illustrating a method of displaying screen data to be binarized in a mobile terminal having a projector function according to an embodiment of the present invention.

1 to 8, the portable terminal drives the projector module 300 in response to a request to activate a projector function of a user (step S801). Then, the portable terminal generates common screen data when the projector module 300 is driven, and outputs the common screen data to the display means 100 and the projector module 300 respectively (S803). That is, the portable terminal generates screen data (screen data for display means) to be provided to the display means 100 and screen data (projector screen data) to be provided to the projector module 300 as common screen data , Binarizes the common screen data, and outputs it to the display means 100 and the projector module 300, respectively.

8 illustrates a case in which common screen data is provided to the display unit 100 and the projector module 300 when the projector module 300 is driven as described above. However, it goes without saying that binary screen data may be provided to the display means 100 and the projector module 300 depending on the application being executed in the portable terminal or the execution mode of the portable terminal at the time when the projector module 300 is driven .

Next, the portable terminal can detect occurrence of a specific input event from the user while providing the common screen data according to the driving of the projector module 300 to the display unit 100 and the projector module 300 as described above (Step S805). Upon detecting the occurrence of the input event, the mobile terminal determines whether the input event is an application / function execution command for a specific object (step S807).

If it is determined in step S807 that the input event is not an execution command, the portable terminal switches the screen data corresponding to the input event (step S809) And the projector module 300 (step S809). For example, the portable terminal generates display data for display means and screen data for a projector corresponding to the input event, binarizes each of the generated screen data, that is, common screen data, And the projector module 300, as shown in FIG. The screen data for the display means of the common screen data and the screen data for the projector have the same screen configuration.

If it is determined in step S807 that the input event is an execution command, the mobile terminal determines an application / function mapped to the object in which the execution command is generated (step S813) That is, the screen data for the projector, and the screen data for the function control corresponding to the screen data for the projector, that is, the screen data for the display means (step S815).

That is, the portable terminal generates binary screen data corresponding to the execution application / function of the object according to the execution command. Then, the portable terminal binarizes each of the generated screen data, that is, the binary screen data, and outputs the screen data to the display unit 100 and the projector module 300 in step S817. The projector screen data of the binary screen data and the screen data for the display means have different screen configurations.

Next, while providing the dual screen data to the display unit 100 and the projector module 300 as described above, the portable terminal can detect occurrence of a specific input event from the user in step S819. Upon detecting the occurrence of the input event, the mobile terminal determines whether the input event is a control command for controlling the function (S821).

If it is determined in step S821 that the input event is a control command, the mobile terminal processes the dual screen data corresponding to the control command in step S823. When the control command is generated, the mobile terminal processes the function for the projector screen data provided to the projector module 300, and controls the projector screen data according to the function processing. That is, projector-specific screen data reflecting the change information according to the function processing is generated and provided to the projector module 300. In addition, the portable terminal provides screen data to be converted to correspond to the control command for the screen data for the display means to which the control command is input.

That is, the portable terminal generates the screen data for the projector provided for the projector module 300 and the screen data for the display means provided to the display means 100 in response to the control command, And supplies the data to the display means 100 and the projector module 300. [ The specific operation will be described with reference to screen examples to be described later.

If it is determined in step S821 that the input event is not a control command, the mobile terminal determines whether the input event is a return command (step S825). If it is determined in step S825 that the input event is not a return command, the portable terminal can process a defrost operation corresponding to the input event (step S827). For example, it is possible to perform operations such as turning off the projector module 300 and deactivating the projector function.

If it is determined in step S825 that the input event is a return instruction, the portable terminal processes common picture data corresponding to the return instruction in step S829. That is, when the return instruction is generated, the portable terminal switches to the screen data before performing the operation according to the execution command. At this time, the portable terminal generates the screen data for the projector provided to the projector module 300 and the screen data for the display means provided to the display means 100 in response to the return instruction, And supplies the data, that is, the common screen data, to the display means 100 and the projector module 300.

Hereinafter, a method of dualizing screen data in a mobile terminal having a projector function of the present invention as described in the description with reference to FIGS. 1 to 8 will be described with reference to a schematic signal flow.

FIG. 9 is a view schematically showing a signal flow according to the binarization process of screen data in the mobile terminal according to the embodiment of the present invention. FIGS. 10 and 11 are views showing a screen for displaying the common screen data and the dual screen data Are views showing examples.

Referring to FIGS. 1 to 9, the controller 800 controls the projector module 300 in response to a user's request to operate the projector module 300 (S901).

The controller 800 generates the common screen data and binarizes the common screen data and outputs the same to the LCD driver module 150 and the projector module 300 through the frame buffer 750 in steps S903 and S905 (Steps S907 and S909).

At this time, when the projector module 300 is driven, the control unit 800 transmits screen data (projector screen data) identical to the screen data (screen data for display means) displayed on the display means 100 to the projector Module 300 as shown in FIG. That is, the control unit 800 controls the display of the screen data (display data for display means) previously provided through the LCD driver module 150 and the screen data of the display unit for display means (Projector screen data) having the same screen configuration as that of the projector screen, and the screen data for the display means is provided to the display means 100, and the projector screen data is provided to the projector module 300, . The screen data for the display means and the screen data for the projector are screen data transmitted to the LCD driver module 150 and the projector module 300 through the frame buffer 750, And is provided as screen data. An example of such a screen is shown in Fig.

10, screen data (projector screen data) S13 output through the projector module 300 and displayed on the external screen 900 and the LCD driver module 150 through the LCD driver module 150 It can be seen that the screen data (screen data for display means) S11 displayed on the display means 100 has the same screen configuration.

In FIG. 10, for example, when a user generates an input event on a specific object of the display data S11 for display means, screen data that is changed in response to the input event is provided through the display means 100 . In this case, the screen data provided to the external screen 900 is also provided with screen data having the same shape as the screen data to be changed.

Next, in response to the execution command for executing the application / function by the user's specific object (step S911), the control unit 800 executes an execution procedure for the application / function of the specific object to be executed and the screen data A binarization procedure can be performed. This will be described with reference to FIG.

That is, at the execution command, the control unit 800 generates the dual screen data and binarizes the dual screen data and transmits the dual screen data to the LCD driver module 150 and the projector module 150 through the frame buffer 750 (steps S913 and S915) (Step S917 and step S919).

At this time, the control unit 800 omits the output of the common screen data (for example, the example screen of Fig. 10) displayed on the display unit 100 at the time of the execution command, (Screen data for projector) and screen data (screen data for display means) for function control on the screen data for the projector, respectively. The controller 100 provides each of the generated screen data, that is, the dual screen data, to the LCD driver module 150 and the projector module 300.

That is, at the time when the execution command is generated, the control unit 800 generates and binarizes the screen data for the display unit and the screen data for the projector corresponding to the executing application / function, The screen data for the display means for controlling the function of the screen data is provided to the display means 100. Actual screen data to be executed in correspondence with the application / function execution, that is, the screen data for the projector, ).

The screen data for the display means and the screen data for the projector are screen data transmitted to the LCD driver module 150 and the projector module 300 through the frame buffer 750, And is provided as screen data. An example of such a screen is shown in Fig.

11, screen data (projector screen data) S23 outputted through the projector module 300 and displayed on the external screen 900, and the LCD driver module 150 The screen data (screen data for display means) S21 displayed on the display means 100 has a different screen configuration.

In FIG. 11, for example, when a user generates an input event for a specific virtual item of screen data S21 for display means, the function mapped to the virtual item is processed and reflected in the projector screen data. In this case, the screen data S23 for the projector provided through the external screen 900 is provided with screen data changed in accordance with the function process.

That is, the user can control the function related to the reproduction of the projector screen data by the screen data S21 for the display means provided on the display means 100. [ For example, when an input event (control command) is generated for a specific virtual item among the virtual items constituting the screen data for the display means, the control unit 800 identifies the function mapped to the virtual item, Can be performed.

For example, when the object executed by the user's execution command is a specific moving image file, the screen image S23 for the projector provided through the external screen 900 may be provided with moving screen data corresponding to the moving image file . In this case, the screen data for display means S21 may be composed of virtual items for controlling the moving picture playback function, and the user may select one of the virtual items as play / pause, stop, fast forward (FF) , Rewind (REW, Rewind), volume control, and recording.

In the above, the display control method by the binarization of the screen data in the portable terminal including the projector module according to the embodiment of the present invention has been described with reference to FIG. 1 to FIG. Next, various screen examples according to screen data display performed in the portable terminal of the present invention as shown in FIGS. 1 to 9 will be described. However, it should be noted that the operation of the portable terminal of the present invention is not limited to the screen example described below, and thus can be applied to various embodiments based on the following embodiments.

12 is a diagram showing an example of a screen when common screen data is output from a mobile terminal according to an embodiment of the present invention.

1 to 12, screen data (display data for display means) S31 displayed on the display means 100 through the LCD driver module 150 and an external screen (Screen data for projector) (S33) displayed on the display unit 900 have the same screen configuration.

In this state, when the user generates an input event in a specific object such as an album (ALBUM) object S35 of the display data S31 for display means, the portable terminal displays screen data (for example, , Menu list screen), and this screen data is binarized and provided as common screen data. That is, the portable terminal generates the screen data S37 for the display means and the screen data S39 for the projector corresponding to the object S35 at which the input event is generated. The screen data S37 and S39, And provides them to the display means 100 and the projector module 300, respectively. 12, a menu list subordinate to the album object is provided as a submenu for the album object. As shown in FIG. 12, the menu list may be provided as a thumbnail image list on a block-by-block basis, or may be provided as a text list corresponding to a user setting method and an execution object.

As shown in FIG. 12, it is assumed that the specific object S35 is an object including subordinate elements such as a submenu, not an object for executing a specific application or function. If the object is an object to which a specific application or function is mapped, the mobile terminal outputs binary screen data instead of outputting common screen data. Such an example is shown in Fig.

13 is a diagram showing an example of a screen in the case of outputting binary screen data in the mobile terminal according to the embodiment of the present invention. In particular, FIG. 13 is a diagram illustrating an example of outputting binary screen data according to the execution of the image viewer.

1 to 13, screen data (display data for display means) S41 displayed on the display means 100 through the LCD driver module 150 and external data And screen data (projector screen data) S43 displayed on the screen 900 have different screen configurations.

That is, when the user generates an input event in the specific object S45 in the state of S37 and S39 in the screen example of FIG. 12, the portable terminal displays a screen Data is generated, and this screen data is binarized and provided as binary screen data. That is, the portable terminal displays the screen data for projector S43 corresponding to the object S45 in which the input event is generated, and the focus or highlight for notifying the occurrence of the input event as the input event occurs in the object S45 Generates screen data S41 for the displayed means and provides the screen data S41 and S43 to the display means 100 and the projector module 300 respectively.

In FIG. 13, the image object is enlarged according to an execution command for a specific image object S45 and is displayed on the external screen 900. That is, in FIG. 13, the specific object S45 represents an object to which a macro for executing a specific application or function is mapped, and in this case, the dual screen data is output.

Next, in the above state, when the user generates an input event in the specific object S47 of the screen data S41 for the display means, the portable terminal generates screen data to be changed corresponding to the input event, This screen data is binarized and provided as screen data. That is, the portable terminal displays the projector screen data S49 corresponding to the object S47 at which the input event is generated, and the focus or highlight for notifying the occurrence of the input event as the input event occurs in the object S47 Generates display data S48 for the displayed means and binarizes the screen data S48 and S49 and provides them to the display means 100 and the projector module 300 respectively.

12, when the user receives an input event corresponding to the return command, that is, a return command for entering the step of providing the screen data of FIG. 12, And generates and outputs the common screen data as described in the description with reference to FIG.

Fig. 14 is a diagram showing another screen example in the case of outputting binary screen data in the mobile terminal according to the embodiment of the present invention. Fig. In particular, FIG. 14 is a diagram illustrating an example of outputting binary screen data when a presentation function using a document is performed.

1 to 14, screen data (display data for display means) (S51) displayed on the display means 100 through the LCD driver module 150 and external data And screen data (projector screen data) S53 displayed on the screen 900 have different screen configurations. Particularly, FIG. 14 shows an example in which the screen data S51 for the display means is displayed in the horizontal direction of the display means 100. FIG.

In this state, when the user generates an execution command for controlling the projector screen data S53 by a specific control action such as option selection, the portable terminal displays screen data to be changed corresponding to the execution command And this screen data is binarized and provided as binary screen data. That is, the portable terminal generates the screen data S55 for the display unit and the screen data S57 for the projector corresponding to the execution command, binarizes the screen data S55 and S57, And the projector module 300, respectively.

In the case of performing a presentation using a specific document, for example, screen data for editing or changing information in a presentation, such as text change, paragraph change, page change, page preview, etc., And the screen data for the means is provided as an example.

Accordingly, when the user delivers an execution command such as editing or option selection through selection of a specific option by menu entry, the mobile terminal displays a page preview function And the like (S59). At this time, the screen data for the projector provided to the projector module 300 may have a screen configuration corresponding to the screen data for the projector shown in S53.

14, when the user transmits an execution command by the object S59 of the display unit screen data S55 in the state as described above, the portable terminal may change And this screen data is binarized and provided as screen data.

That is, when the mobile terminal designates an object pointing to a specific page in the page preview object S59, the mobile terminal responds to the corresponding object generated by the execution command And screen data for display means which is changed as an execution command is issued to the object. The portable terminal binarizes the screen data and provides the screen data to the display unit 100 and the projector module 300, respectively.

In this case, the screen data for the projector has a screen configuration different from that of the screen data of S53 and S57. That is, the changed screen data for the projector has a screen configuration of the screen data for the page designated by the user.

FIGS. 15 and 16 are diagrams illustrating an example of a screen for providing information items when the dual screen data is output from the mobile terminal according to the embodiment of the present invention.

1 to 16, the portable terminal may provide at least one information item according to a user's setting when the dual screen data is output to the LCD driver module 150 and the projector module 300 . At this time, the information item is an item representing various information to be displayed on the screen data for the projector provided to the projector module 300 among the binary screen data, and can be provided as an icon form of the virtual item in the screen data for the projector . An example of the information item according to the user setting is as shown in Table 1 below.

As shown in Table 1, the user can set information display of at least one information item according to a desired one of various information items provided in the portable terminal. The information item may include a battery information item for providing remaining battery level information of the portable terminal in the form of an icon, a short message service (SMS), a multimedia message service (MMS) E-mail, etc.), a call message providing information in the form of an icon in the form of a call reception information corresponding to a call request from a specific counterpart mobile terminal (E.g., a progress bar indicating the degree of reproduction progress), information on the degree of progress of a function associated with playback of a multimedia data such as a moving image or a digital broadcast, Service information such as items, disaster information, weather information, and SOS information is received An emergency information item providing an icon in the form of an icon, and a service information item for providing service information such as a service subscription, such as a stock service, in the form of an icon, and the user can select at least one of the information items It is possible to set whether to display information items corresponding to one piece of information. It should be noted that although not shown in Table 1, the information item may provide some or all of various information provided through the indicator area of the portable terminal.

The display of this information item may be in accordance with the user setting, and at least one information item designated by the user may be provided on the screen data for the projector of the external screen 900 at the time of performing the projector function. An example of such a screen will be briefly described with reference to FIGS. 15 and 16 as follows.

Referring to FIG. 15, FIG. 15 illustrates an example in which an information item S67 such as battery information and text message reception information is provided together with the screen data S63 for a projector. In particular, the battery information among the information items may be displayed in the projector screen data S63 displayed on the external screen 900 according to the user's setting. The text message reception information, call reception information, A text message reception or a call reception) occurs.

For example, when a text message is received while outputting screen data of specific multimedia data through the external screen 900 by the projector function, the portable terminal displays display data S61 for display means The mobile terminal can provide the information item S65 to the indicator area of the external screen 900. The mobile terminal can also provide the information item S65 to the indicator area of the external screen 900. [ It is possible to provide an information item S67 informing reception.

At this time, the information item provided in the projector screen data S63 is displayed in an area corresponding to the position displayed in the indicator area of the portable terminal, or the screen data S63 for the projector is not disturbed Or may be provided in an area according to a user setting such as an upper or lower area.

Referring to FIG. 16, FIG. 16 illustrates a case in which an information item S79 such as a progress bar indicating the progress of multimedia data such as moving pictures or digital broadcasting is provided together with the screen data for a projector S73 For example.

16, when the screen data of specific multimedia data is outputted through the external screen 900 by the projector function, the information item S79 corresponding to the user setting is added together with the screen data for projector S73 . In FIG. 16, a battery information item S77 and an execution information item S79 are provided. In particular, in FIG. 16, the execution information item is provided with a virtual item such as a progress bar, and the execution information item is variably displayed so as to identify its degree of progress that varies according to progress of multimedia data reproduction.

At this time, the display of the execution information item S79 may be omitted in the screen data for display means S71 provided to the display means 100, as in the example of FIG. That is, the screen data for display means S71 is provided as screen data for controlling the function of the projector screen data S73, the display of the additional information items S77 and S79 is provided for the projector screen data S73, Lt; / RTI >

17 is a diagram illustrating an example of a screen for explaining another output method of the common screen data and the binary screen data in the portable terminal according to the embodiment of the present invention.

Referring to FIGS. 1 to 17, when the common screen data or the dual screen data is output to the LCD driver module 150 and the projector module 300, The operation of the display means 100 can be turned off. In this case, the operation of the LCD driver module 150 can be turned off, and the dualization procedure for providing screen data for the display means can be omitted from the display means 100.

That is, when the projector function is performed according to the user setting, the portable terminal can enter the power saving mode when no input event is generated by the portable terminal from the user for a predetermined period of time. In the embodiment of the present invention, the power saving mode is a mode in which the operation according to the execution of the projector function is driven, and a data processing procedure for providing screen data to the display means 100 of the portable terminal, LCD driver module or the like) of the display device.

Accordingly, if the mobile terminal determines to perform the power saving mode, the mobile terminal ends the dualization process for providing the common screen data or the dual screen data. That is, the portable terminal skips the generation of screen data for the display means, and turns off the LCD driver module 150 and the display means 100. At this time, the portable terminal generates only the screen image data for projector S83 from the common screen data or the dual screen data, and displays only the projector screen data S83 to be generated on the external screen 900 through the projector module 300 can do.

In this case, when the portable terminal enters the power saving mode as shown in FIG. 16, the LCD driver module 150 and the display means (100) is turned off, and generation of screen data for display means out of the binary screen data is omitted. That is, in the power saving mode, the portable terminal generates only the screen data for the projector among the dual screen data and provides it to the projector module 300.

At this time, as shown in FIG. 17, when the information item set by the user is present, the mobile terminal can provide the information items S85 and S87 together. That is, the portable terminal can provide various information items S85 and S87 along with the screen data for the projector in the power saving mode.

15 to 17, according to the embodiment of the present invention, when the operation by the projector function is performed, the battery consumption of the portable terminal can be reduced by the power saving mode, and the user can use the external screen 900 The user can intuitively confirm the remaining battery level information, the progress of the multimedia reproduction, the text message, or the call reception, etc., without operating the portable terminal while watching the screen data for the projector through the projector.

As described above, the portable terminal and the screen data output apparatus according to the embodiment of the present invention generate screen data to be transmitted to the display means and the projector module, and the screen data is binarized and output in a time division manner Control means; Storage means for buffering screen data transmitted to the display means and the projector module; An LCD driver module for extracting screen data having the destination of the display unit among the screen data buffered by the storage unit and delivering the screen data; Display means for displaying screen data transmitted from the LCD driver module; The projector module extracts screen data to be output to an external screen among the screen data buffered in the storage unit and outputs the extracted screen data to the external screen. According to the present invention, common screen data or binary screen data can be output to the display means and the projector module through the binarization of the two screen data as described in the description with reference to the above-mentioned Figures 1 to 17, respectively.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

1 to 3 schematically illustrate examples of a mobile terminal according to an embodiment of the present invention,

4 is a block diagram of a portable terminal according to an embodiment of the present invention.

5 and 6 are views schematically showing an exemplary configuration for binarizing output screen data in a mobile terminal having a projector function according to an embodiment of the present invention,

7 is a diagram illustrating a method of processing screen data in a portable terminal having a projector function according to an embodiment of the present invention.

8 is a diagram illustrating a method of displaying screen data to be binarized in a mobile terminal having a projector function according to an embodiment of the present invention;

9 is a diagram schematically illustrating a signal flow according to the binarization processing of screen data in the mobile terminal according to the embodiment of the present invention,

FIG. 10 and FIG. 11 are views showing screen examples for displaying common screen data and dual screen data in a portable terminal according to an embodiment of the present invention,

12 to 17 are diagrams illustrating various screen examples when screen data is output in a mobile terminal according to an embodiment of the present invention.

Claims (38)

1. A screen data output method in a mobile terminal having a projector function, Activating the projector module, Generating display data to be transmitted to the display means and the projector module, And outputting the divided screen data to the display unit and the projector module in a time-division manner, respectively, and outputting the divided screen data to the display unit and the projector module in a time-division manner. The method as claimed in claim 1, The screen data for the display means to be displayed by the display means and the screen data for the projector to be displayed on the external screen through the projector module are generated. 3. The method of claim 2, And outputting the screen data for display means and the projector screen data as common screen data having the same screen configuration. 3. The method of claim 2, And outputting the screen data for the display unit and the projector screen data as binary screen data having different screen configurations. delete 5. The method of claim 4, And performing function control on the projector screen data by using the screen data for the display unit among the binary screen data. 4. The method of claim 3, Generating binary screen data having different screen configurations in response to an execution command for a specific object among the output by the common screen data; And outputting each screen data to the display unit and the projector module. The method of claim 1, wherein the screen data is displayed on the display unit. 5. The method of claim 4, Wherein the projector screen data of the binary screen data includes an information item according to a user setting. 3. The method of claim 2, Further comprising the step of omitting the output of the display data for the display means after a lapse of a predetermined period of time when outputting the display data for the display means and the screen data for the projector to the display means and the projector module A method for outputting screen data of a portable terminal having a function. 10. The method of claim 9, And providing an information item corresponding to an event occurring in the portable terminal through the screen data for the projector. A screen data output system of a portable terminal, Means for generating two screen data by binarizing screen data for display means and screen data for projectors when the projector function is performed; Means for outputting the display data for the display means and the screen data for the projector as common screen data or binary screen data in a time division manner in accordance with the performance of the function, Means for displaying the screen data for the display means of the common screen data or the binary screen data, And means for outputting the screen data for the projector of the common screen data or the binary screen data to an external screen. 12. The method of claim 11, Wherein the common screen data is two screen data having the same screen configuration as the screen data for the display means and the screen data for the projector. 12. The method of claim 11, Wherein the dual screen data is two screen data having a screen configuration in which the screen data for the display means and the screen data for the projector are different from each other. delete 14. The method of claim 13, Wherein the screen data for the display means of the binary screen data includes a virtual item for controlling the function of the screen data for the projector of the binary screen data. 16. The method of claim 15, Wherein the screen data for the projector of the dual screen data is execution screen data corresponding to the function of the mobile terminal. 17. The method of claim 16, Wherein the screen data for the projector of the dual screen data includes an information item for providing various information according to a user setting. 12. The method of claim 11, And the display data for the display means is output when a predetermined period of time elapses from the screen data for the display means and the screen data for the projector based on the common screen data or the binary screen data. Output system. In a portable terminal having a projector function, A control unit for generating screen data for display means for outputting screen data to be output when the projector function is activated to display means for the display means and screen data for a projector having the projector module as a destination, Display means for displaying screen data for display means output from said control means; And a projector module for outputting projector screen data output from the controller to an external screen. 20. The apparatus of claim 19, And outputs the display data for the display means and the projector screen data as common screen data having the same screen configuration. 21. The apparatus of claim 20, And the projector screen data is output as the binary screen data having different screen configurations. delete 22. The apparatus of claim 21, And controls the conversion of the projector screen data of the binary screen data in accordance with the user control by the screen data for the display means of the binary screen data. 24. The apparatus of claim 23, And outputting an information item for providing various information according to a user setting to the screen data for a projector of the dual screen data. 25. The apparatus of claim 24, And omits the output of the screen data for the display means when a predetermined period of time elapses from the output of the screen data for the display means and the screen data for the projector by the common screen data or the binary screen data A mobile terminal. 21. The mobile terminal of claim 20, And a frame buffer for buffering screen data for display means transmitted to said display means and screen data for projector transmitted to said projector module. 27. The apparatus of claim 26, Wherein the controller divides and buffers screen data for display means, which is transmitted to the display means, out of screen data transmitted from the control unit, and screen data for projector transmitted to the projector module. 28. The frame buffer of claim 27, An LCD frame buffer for buffering screen data for display means, which the control unit transmits to the display means, And a projector frame buffer for buffering projector screen data transmitted from the control unit to the projector module. 27. The mobile terminal of claim 26, And an LCD driver module for extracting screen data having a destination as a destination from the screen data buffered in the frame buffer and transmitting the extracted screen data to the display unit. A screen data output apparatus of a portable terminal, Control means for generating respective screen data to be transmitted to the display means and the projector module, binarizing the screen data, and outputting the screen data in a time- Storage means for buffering screen data transmitted to the display means and the projector module; An LCD driver module for extracting screen data having a destination as a destination from the screen data buffered by the storage unit and delivering the screen data, Display means for displaying screen data transmitted from the LCD driver module; And the projector module extracts screen data to be output to an external screen among the screen data buffered in the storage means and outputs the extracted screen data to the external screen. 31. The apparatus according to claim 30, The screen data for the display means to be displayed by the display means and the screen data for the projector to be output to the projector module are generated and provided to the storage means. 32. The apparatus according to claim 31, And provides the display data for the display means and the screen data for the projector to the storage means as common screen data having the same screen configuration. 33. The apparatus according to claim 32, The screen data for display means and the projector screen data are provided to the storage means as binary screen data having different screen configurations. 34. The apparatus according to claim 33, And a virtual item for controlling the function of the screen data for the projector is included in the screen data for the display means of the binary screen data and is provided to the storage means. 35. The apparatus according to claim 34, Wherein the screen data providing unit includes an information item for providing various information according to a user setting to the screen data for the projector of the dual screen data, and provides the screen data to the storage means. 32. The apparatus according to claim 31, Wherein the outputting of the screen data for display means is omitted when a predetermined period of time elapses from the output of the display data for the display means and the output of the screen data for the projector. 32. The apparatus of claim 31, Wherein the control unit is a frame buffer for buffering common screen data or binary screen data transmitted by the control unit. The apparatus of claim 37, wherein the frame buffer comprises: An LCD frame buffer for buffering screen data for display means for transferring the display means to a destination, And a projector frame buffer for buffering screen data for projectors for transferring the projector module to a destination by the control means.

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