KR20040036466A - Device and method for displaying multivision in mobile telephone - Google Patents

Abstract

PURPOSE: A multivision display apparatus of a mobile terminal and a method therefor are provided to allow a user to enjoy a partial image as a full image in an entire screen by selectively displaying it. CONSTITUTION: If a TV image is a contracted image(100), a user senses it and inputs a key to convert it into a full size screen(101). When the user presses a menu key, a controller senses it and displays types of menu keys(103). When the user selects a multivision, the controller senses it and displays types of multivisions(104). When the user selects the number of division, the controller senses it and displays the number of divided screens(106). When the user selects one of the number of divided screens, the controller senses it and divides the TV screen(108). When the user selects the first partial screen, the controller senses it and controls a screen enlarging unit to amplify an image signal of the first partial screen(109). The screen enlarging unit transmits an image signal to a decoder. The decoder converts the image signal into an analog image signal, and an image processor converts the analog image signal to a digital image signal. A display unit displays the digital image signal in a full size on a display unit(110).

Description

Multi-vision display and method of mobile phone {DEVICE AND METHOD FOR DISPLAYING MULTIVISION IN MOBILE TELEPHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cellular phone, and more particularly, to an apparatus and method for displaying a multi-vision using a portable telephone for displaying a television video signal.

Recently, as networks providing information rapidly develop, there is a demand for the development of a composite wireless communication terminal in which various functions are added in addition to a communication terminal for delivering voice. In addition to the voice transmission / reception function, such a portable wireless communication terminal has been developed. In such a portable TV phone, only one portable TV phone is required to view a single image. However, the image size of the portable TV phone could not escape the limitation of the LCD size could not be viewed on a larger screen.

Accordingly, an object of the present invention is to provide an apparatus and method for displaying a multi-vision using a portable telephone for displaying a television video signal.

A multi-vision display device of a portable telephone having a television display function for achieving the above object is a tuner for receiving a television video signal of a selected channel, and a decoder for decoding the received composite video signal to generate analog video signals and synchronization signals. A display unit for converting the analog image signal into a digital image signal and outputting the image signal; a display unit for displaying the digital image signal output from the image processor; and a display unit for displaying the digital image signal. A screen magnification device for amplifying a video signal of a partial screen selected by a user among the divided screens and transmitting the video signal to the decoder; controlling overall operation of the mobile phone; and controlling the screen magnification device to divide the screen of the display unit; And a part selected by the user among the divided screens. Characterized in that the control unit for controlling to display the divided screen in full screen.

In addition, the multi-vision display method of the portable telephone having a television display function to achieve the above object is the process of splitting the screen by selecting the multi-vision key while watching TV, the process of selecting a specific partial screen from the divided screen, The selected partial screen is characterized in that the process consists of displaying the full screen.

1 is a diagram illustrating a configuration of a portable telephone for displaying a television video signal according to an embodiment of the present invention.

FIG. 2 is a diagram showing details of a connection relationship between a control unit and components for receiving a television signal in FIG. 1; FIG.

3 is a flowchart illustrating a method of splitting a screen and displaying the split screen as a premise screen in the portable telephone according to the exemplary embodiment of the present invention.

4A to 4B are views for explaining FIG. 3.

FIG. 5 is a diagram illustrating a multi-vision display of portable telephones displaying partial screens of FIGS. 4A to 4B as premise screens.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

1 is a view showing the configuration of a portable telephone according to an embodiment of the present invention, Figure 2 is a view showing in detail the connection relationship between the control unit and the configuration for receiving a television signal in FIG.

1 and 2, the RF unit 21 performs wireless communication of the portable telephone. The RF unit 21 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The data processor 23 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal. That is, the data processor 23 may be configured of a modem and a codec CODDEC. The audio processor 25 plays a function of reproducing a received audio signal output from the data processor 23 or transmitting a transmission audio signal generated from a microphone to the data processor 23. The audio processor 25 also plays a function of reproducing the audio signal of the television signal output from the decoder 60 which will be described later in the television mode.

The keypad 27 has keys for inputting numeric and text information and function keys for setting various functions. In addition, the keypad 27 is provided with a multi-vision key according to an embodiment of the present invention. The memory 29 may be composed of program memory and data memories. In the program memory, programs for controlling a general operation of the portable telephone and a data memory 29 temporarily store data generated during the execution of the programs.

The controller 10 performs a function of controlling the overall operation of the portable telephone. In addition, the controller 20 may include the data processor 23. The controller 10 controls the screen magnification device to divide the screen of the display unit, and to display the video signal of the partial screen selected by the user among the divided screens in full screen (full size: 2220 * 176). Control to display.

The tuner 50 receives a television video signal of a selected channel under the control of the controller 10 and performs a function of frequency converting the received television video signal.

The decoder 60 demodulates and decodes the composite video signal of the television output from the tuner 50. The decoder 60 separates the audio and video signals from the composite video signal, decodes the separated audio signal and the video signal, applies the audio signal to the audio processor 25, and transmits the video signal to the video processor 70. The decoder 60 decodes the television video signal and outputs color signal R, G, and B and a synchronization signal (a horizontal synchronization signal and a vertical synchronization signal).

The image processing unit 70 communicates data with the control unit 10, and a signal processing function for displaying the user data output from the control unit 10 and the television video signal output from the decoder 60 according to the television mode and communication mode control of the control unit 10. Do this. The display unit 80 displays data output from the control unit 10 in a communication mode, and displays television image data and user data output from the image processing unit 70 in a corresponding area in the television mode.

The screen magnifier 90 divides the screen of the display unit 80 on which the digital image signal of the image processor 70 is displayed under the control of the controller 10. In addition, the screen magnifier 90 amplifies an image signal of a portion selected by the user among the divided screens of the display unit 80 and transmits the image signal to the decoder 60. In this case, the video signal represents the video signal received by the tuner 50.

Referring to FIGS. 1 and 2, an operation of displaying a multi-vision through a portable phone displaying a television video signal may be performed. The screen magnifier 90 is controlled to divide the screen by the selected number of divisions. When the user selects a specific partial screen among the divided screens, the controller 10 controls the screen expansion apparatus 90 to display the selected partial screen as a full screen (full size: 2220 * 176). The portable telephones displaying the partial screen as the full screen (full size: 2220 * 176) are divided by the number of divisions to display the multi-vision.

3 is a flowchart illustrating a method of splitting a screen and displaying the split screen as a premise screen in the portable telephone according to an embodiment of the present invention. FIGS. 4A to 4B are views for explaining FIG. 3 and FIG. 5. 4A and 4B illustrate a state in which portable telephones which display partial screens of FIGS. 4A and 4B as a premise screen are gathered by the number of divisions to display a multi-vision.

Referring to FIG. 3, if the TV screen is a reduced screen (QCIF size: 176 * 144) as shown in FIG. 4A (A) in step 100 while watching TV through the mobile phone, the user detects it in step 101 and the whole screen is displayed. Enter key to convert to full screen (2220 * 176). You can enter the TV key shortly to convert the TV screen to full screen (2220 * 176). When the user inputs the key, the control unit 10 senses this, and in step 102 the reduced screen (QCIF size: 176 * 144) as shown in (A) of FIG. 4A is displayed in full size as shown in (B) of FIG. 4A. 2220 * 176).

If the user presses the menu key on the keypad 27 while the TV screen is at full screen (2220 * 176) as shown in (B) of FIG. 4A, the controller 10 detects this in step 103 and FIG. The type of the menu key 200 is the same as that of (). In the state where the menu key 200 is displayed, the user selects the multivision, and the control unit 10 detects it in step 104 and displays the types of the multivision. When the user selects the number of divisions while the types of the multi-vision are displayed, the controller 10 detects this in step 105 and proceeds to step 106 where the division numbers of the screen are displayed. When the user selects one of the screen division numbers displayed in step 106, the controller 10 detects this in step 107 and controls the screen magnifier 90 to display a TV screen as shown in FIG. 4B (D) in step 108. Divide. FIG. 4B (D) shows a TV screen divided into four when the user selects four divisions in step 106. In addition, on the divided TV screen of FIG. 4B, a number or the like indicating the number of divisions is displayed so that the user can distinguish each divided screen.

In FIG. 4B (D), when the user selects a specific partial screen, for example, the first partial screen, the controller 10 detects this in step 109 and controls the screen magnification device 90. The screen magnifier 90 amplifies the video signal of the first partial screen shown in FIG. 4B (E) to the screen size shown in FIG. 4B (F). The video signal amplified by the screen magnifier 90 represents a video signal received by the tuner 50. The screen magnifier 90 transmits a video signal for displaying a screen as shown in FIG. 4B to the decoder 60 under the control of the controller 10. The image signal converted into an analog signal through the decoder 60 is displayed on the display unit 80 in step 110 after being converted into a digital image signal through the image processing unit 70. FIG. 4B (G) shows step 110 in which the first partial screen is displayed on the display unit 80 as a full screen (full size: 2220 * 176). 5 is a portable phone for displaying the first partial screen on a full screen (full size: 2220 * 176) and the remaining second, third, and fourth partial screens on the same screen as described above. 2220 * 176), mobile phones are showing multi-vision. As shown in FIG. 5, the portable telephone capable of displaying a multi-vision is more convenient to use the portable telephone in which a folder rotates.

That is, as described above, the present invention has the effect that each portable phone can be viewed on a larger screen by showing the partial screen to be displayed on the full screen.

Claims (3)

In the multi-vision display device of a portable telephone having a television display function, A tuner for receiving a television video signal of a selected channel; A decoder which decodes the received composite video signal and generates analog video signals and synchronization signals; An image processor converting the analog image signal into a digital image signal and outputting the converted digital image signal; A display unit which displays the digital video signal output from the image processor; A screen magnification device for dividing a screen of the display unit displaying the digital video signal, amplifying a video signal of a partial screen selected by a user from the divided screens, and transmitting the amplified video signal to the decoder; And a controller for controlling the overall operation of the mobile phone, controlling the screen magnification device to divide the screen of the display unit, and controlling to display the partial screen selected by the user in full screen among the divided screens. Multi-vision display of a portable telephone. The method of claim 1, And a video signal transmitted from the screen magnifier to the decoder is a video signal received from the tuner. In the multi-vision display method of a portable telephone having a television display function, Splitting the screen by selecting a multi-vision key while watching TV; Selecting a specific partial screen from the divided screen; Multi-vision display method of a portable telephone, characterized in that the selected partial screen is displayed in a full screen process.