KR100447589B1 - Mobile phone having a dual key pad - Google Patents

Abstract

The present invention relates to a mobile communication terminal having a dual keypad, and a keypad for a conventional mobile communication terminal has a character for inputting a character in a short message transmission mode or a wireless email transmission mode, such as a Korean alphabet per button, English and small letters per button. Has been assigned a problem that it is difficult to write the content of the message to be transmitted in the text message transmission mode or wireless email transmission mode, in the present invention, the input of the content to be transmitted is made easy to input a larger amount of letters or numbers per unit time In order to provide a mobile communication terminal, an external terminal body having a first keypad formed of buttons for controlling the operation of the terminal, an internal terminal body having a second keypad formed of buttons for text input, and first and second LCD display with information entered from the keypad The terminal is configured with the formed liquid crystal display unit, and the external and internal terminal body and the liquid crystal display unit are configured to be folded or unfolded by the hinge means, and the terminal using the first keypad is folded in three stages in the call mode or the standby mode. In the text message transmission mode or the wireless email transmission mode, text input is performed using both the first and second keypads in the unfolded state.

Description

Mobile communication terminal equipped with a dual keypad {Mobile phone having a dual key pad}

The present invention relates to a mobile communication terminal having a dual keypad, and more particularly, an internal terminal having a second keypad formed of buttons for text input to an external terminal body having a first keypad composed of buttons for controlling operations of the terminal. Rotatably coupled to the main body, and the internal terminal body rotatably coupled to a liquid crystal display formed with a liquid crystal display screen on which information input from the first and second keypads is displayed. 1 A mobile communication terminal equipped with a dual keypad for controlling and using a terminal using a keypad and inputting text using both the first and second keypads in a state where both are in a text message transmission mode or a wireless email transmission mode. It is about.

In general, a flip type mobile communication terminal has a keypad formed by combining a plurality of buttons for selecting, confirming, selecting a call, connecting a call, and entering numbers and letters on the front of the terminal body. The key data corresponding to the keypad is displayed on the liquid crystal display screen.

Accordingly, the terminal user inputs the contents of a message to be transmitted in the text message transmission mode or the wireless email transmission mode through a keypad formed on the front of the terminal main body to be displayed on the liquid crystal display screen.

In addition, the folder-type mobile communication terminal also forms a liquid crystal display screen on one surface of the folder unit, and a keypad is formed on one surface of the terminal body so that the corresponding key data is displayed on the liquid crystal display screen when the terminal user presses the keypad.

However, such a conventional mobile communication terminal is difficult to prepare a message content to be transmitted in a text message transmission mode or a wireless email transmission mode.

More specifically, the conventional mobile communication terminal is displayed on the liquid crystal display at the same time as the input of the corresponding data pressed by pressing the keypad for writing the message content to be transmitted in the text message transmission mode or wireless email transmission mode, the keypad is a text In general, only 10 buttons are used for the input and the input of numbers, and each button has a function of sequentially inputting and displaying 3 to 4 characters sequentially as the button is pressed.

Therefore, the terminal user is inconvenient to select and input the corresponding character by pressing a button several times when the characters to be input are arranged in the third order.

For example, in the case of the button indicated by number 1 on the keypad, in addition to the function of inputting the data of the number 1, the function of displaying the uppercase letters A, B, C, the lowercase letters a, b, c, and the Korean consonants a, If the terminal user wants to input the lowercase letter b at the same time, the terminal user must press button 1 repeatedly until the lowercase letter b is selected.

In addition, in order to input a special character other than the English alphabet or the Korean alphabet, it is inconvenient to select the special character by pressing a separate function key and displaying the special character on the LCD screen.

Therefore, the conventional mobile communication terminal is very inconvenient to compose a short message or to write mail contents of a wireless e-mail, and is more inconvenient in an environment capable of transmitting and receiving a large amount of wireless data.

In the conventional mobile communication terminal, a letter or number input using a keypad is displayed on a LCD screen in a short message transmission mode or a wireless email transmission mode. However, since the size of the LCD display screen is limited, a large amount of letters or numbers is used. Cannot be displayed on one screen at the same time.

In more detail, most mobile communication terminals seek to reduce the size of the mobile terminal. In the case of a flip type terminal, a liquid crystal display screen and a keypad are formed on the front of the terminal body so that the size of the liquid crystal display screen is very small. In the case of the LCD, a liquid crystal display is formed on one side of the folder, and a keypad is formed on one side of the main body of the terminal, which is relatively larger in size than a flip type terminal. If the content is long, it cannot be displayed on one screen at a time.

Therefore, the terminal user has an inconvenience in that the terminal user should search the contents using up and down scroll buttons to check the contents to be transmitted or the entire contents.

Accordingly, an object of the present invention is to provide a mobile communication terminal in which a large amount of letters or numbers are input per unit time by easily inputting content to be transmitted in a short message mode or a wireless email transmission mode.

Another object of the present invention is to provide a mobile communication terminal which can be displayed on one screen even if the contents to be transmitted or received are long in the short message mode or the wireless email transmission mode, so that the user can easily search for the contents.

Accordingly, in order to achieve the above object, the mobile communication terminal according to the present invention includes an external terminal body having a first keypad composed of buttons for controlling the operation of the terminal, and an internal terminal having a second keypad composed of buttons for text input. It consists of a liquid crystal display unit formed with a liquid crystal display screen on which the information input from the main body, the first and second keypads is displayed, and the external and internal terminal body and the liquid crystal display unit are configured to be folded or unfolded by the hinge means, thereby making a call mode or standby mode. In this state, the terminal is controlled by using the first keypad while being folded in three stages, and in the text message transmission mode or the wireless email transmission mode, text is input by using both the first and second keypads in the expanded state. do.

1 is a plan view illustrating a mobile communication terminal equipped with a dual keypad according to the present invention.

2 is a front view of FIG. 1;

3 is a plan view in a state in which the mobile communication terminal equipped with a dual keypad in the unfolded state.

4 is a front view of FIG. 3;

※ Explanation of code about main part of drawing ※

10: external terminal body 20: first keypad

30: internal terminal body 40: second keypad

50 liquid crystal display 60,70 hinge portion

80,82,84,86: magnet

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a mobile communication terminal equipped with a dual keypad according to the present invention.

1 is a plan view in a folded state of a mobile communication terminal equipped with a dual keypad according to the present invention, Figure 2 is a front view in a folded state of a mobile communication terminal provided with a dual keypad according to the present invention.

3 is a plan view in an unfolded state of a mobile communication terminal equipped with a dual keypad according to the present invention, and FIG. 4 is a front view in an unfolded state of a mobile communication terminal equipped with a dual keypad according to the present invention.

As shown, the mobile communication terminal of the present invention is largely composed of an external terminal body 10, an internal terminal body 30, and a liquid crystal display unit 50, and each unit includes first and second hinge portions 60 and 70. It is combined to fold or unfold three stages by.

The mobile communication terminal of the present invention is used in the folded state in the call mode state, all in the unfolded state in the text message transmission mode or wireless email transmission mode.

More specifically, the external terminal main body 10 has a front surface 12a, the speaker unit 14 and the microphone unit 16, which are used in the call mode, are formed at the upper and lower portions thereof, respectively, and the first keypad ( 20 is formed, and a first window 18 is formed between the speaker unit and the first keypad.

The first keypad 20 is used in a standby mode or a call mode such as a number for inputting a phone number, menu search and storage, call connection, and termination, and constitutes buttons for controlling the operation of the terminal.

In addition, one side of the external terminal main body 10, the first hinge portion for coupling the external terminal main body to one side of the internal terminal main body so that the external terminal main body is rotatable to the closed position or the open position with respect to the internal terminal main body 30 ( 60) is formed.

The first hinge unit 60 sets the hinge rotation angle such that the external terminal main body rotates from 0 ° to 180 ° based on the internal terminal main body by using a hinge device to couple the external terminal main body to the internal terminal main body.

Here, the closed position of the external terminal body 10 refers to a state in which the rear surface 12b of the external terminal and the front surface 32a of the internal terminal body are folded to contact each other, as shown in FIG. 2, and the hinge rotation angle is 0 °. If

In addition, the open position of the external terminal body 10 is rotated by the first hinge portion 60 relative to the internal terminal body 30 as shown in FIG. 4 so that the front surface 12a of the external terminal body 10a. ) And the rear surface 32b of the inner terminal body are laid out on the same plane, and the hinge rotation angle of the first hinge portion 60 is 180 °.

The external terminal body 10 and the internal terminal body 30 are provided with first locking means to continuously maintain the closed position of the external terminal body.

Various forms may be applied to the first locking means. However, in the present invention, the first magnet 80 is formed at a predetermined position on the rear surface 12b of the external terminal body by using magnetic force, and the front surface 32a of the internal terminal body. The second magnet 82 is formed so as to face the first magnet.

That is, when the rear surface 12b of the external terminal main body contacts the front surface 32a of the internal terminal main body, magnetic force acts between the first and second magnets 80 and 82 so that the external terminal main body 10 may be subjected to external impact or the like. To prevent itself from rotating to the open position.

The internal terminal body 30 has a second keypad 40 formed on the rear surface 32b, and a second window 34 is formed at the same position as the position where the first window 18 is formed on the external terminal body.

The second keypad 40 is composed of buttons used for inputting a character in a short message transmission mode such as a Korean alphabet, a lowercase letter, a special character, or a wireless email transmission mode.

In addition, the internal terminal main body 30 is provided with a second hinge portion 70 for coupling the internal terminal main body to the liquid crystal display so that the internal terminal main body is rotatable to the closed position or the open position with respect to the liquid crystal display 50.

Similar to the first hinge unit 60, the second hinge unit 70 sets the hinge rotation angle such that the internal terminal body is 0 ° to 180 ° based on the liquid crystal display unit, and thus, the internal terminal body 30 and the liquid crystal display unit 50. ).

Here, the closed position of the inner terminal body refers to a state in which the rear surface 32b of the inner terminal and the front surface 52a of the liquid crystal display are folded to contact each other, as shown in FIG. 2, and the hinge rotation angle of the second hinge portion is 0 °. If

As shown in FIG. 4, the closed position of the internal terminal body is rotated based on the liquid crystal display unit 50 so that the rear surface 32b of the internal terminal body and the front surface 52a of the liquid crystal display unit are rotated. It refers to the unfolded state to be placed on the same plane, the hinge rotation angle of the second hinge portion is 180 °.

The internal terminal body 30 and the liquid crystal display unit 50 are provided with second locking means to continuously maintain the closed position of the internal terminal body 30.

Like the first locking means, the second locking means uses a magnetic force, and forms a third magnet 84 on the rear surface 32b of the internal terminal body and faces the third magnet on the front surface 52a of the liquid crystal display. The fourth magnet 86 is formed and configured.

That is, when the rear surface 32b of the internal terminal body contacts the front surface 52a of the liquid crystal display, the internal terminal body 30 may be exposed to external shocks or the like by a magnetic force acting between the third and fourth magnets 84 and 86. This prevents itself from rotating to the open position.

The liquid crystal display unit 50 is a front panel 52a which displays general terminal information such as antenna reception degree, current time, battery level, talk time, and phone number information in a call mode or standby mode, and transmits a text message or wireless email. In the mode, a liquid crystal display 54 is displayed on which the contents of the message to be transmitted are displayed.

Herein, the information displayed on the liquid crystal display 54 is a partial screen portion of the screen that is viewed from the outside through the first and second windows 18 and 34 of the external terminal body and the internal terminal body in the call mode or the standby mode. 3 is indicated by a dotted line), and in the text message transmission mode or the wireless email transmission mode, the entire screen area is displayed.

In addition, a battery 56 for supplying power required for terminal operation to the rear surface 52b of the liquid crystal display is mounted.

As described above, the mobile communication terminal according to the present invention, in which the external terminal body, the internal terminal body, and the liquid crystal display unit are coupled by the first and second hinge parts, is used in a folded state in a standby mode or a call mode, and a text message transmission mode. Or in wireless e-mail transmission mode, it is used in the unfolded state.

First, in the standby mode or the call mode, as illustrated in FIGS. 1 and 3, the external terminal body 10, the internal terminal body 30, and the liquid crystal display unit 50 may include the first and second hinge portions 60,. 70) to be in a folded state.

In this state, in the standby mode, general terminal information is displayed on the liquid crystal display 54 of the liquid crystal display, but a part of the screen is displayed through the first window 18 of the external terminal body and the second window 34 of the internal terminal body. When the display is exposed and an operation such as menu search, selection, storage, etc. of the terminal is performed using the first keypad 20, the result is displayed on the liquid crystal display screen 54 to control the operation of the terminal.

In addition, in the call mode, it is possible to input a phone number and make a call connection by using the first keypad 20 of the external terminal body.

In addition, the first to fourth magnets 80, 82, 84, and 86 maintain the state in which the external terminal body 10, the internal terminal body 30, and the liquid crystal display unit 50 are always closed, thereby stably maintaining the standby mode. Or it is blocked from opening on its own in the call mode.

In the text message transmission mode or the wireless email transmission mode, the external terminal main body 10, the internal terminal main body 30, and the liquid crystal display unit 50 may have a first hinge portion and a second hinge portion as shown in Figs. (60,70) are all in the unfolded state.

In this state, the first keypad 20 on the front surface of the external terminal body, the second keypad 40 on the rear surface of the internal terminal body, and the liquid crystal display screen 54 on the front surface of the liquid crystal display are all placed on the same plane.

Accordingly, the contents to be transmitted are input by combining numbers, Korean alphabets, lowercase and lowercase letters, and special characters by using the first and second keypads 20 and 40 simultaneously. ) Is displayed in the entire screen area. In addition, since the first keypad 20 having the call connection button and the second keypad 40 including the text buttons are placed on the same plane, the first and second keypads 20 and 40 are connected while talking. By operation, text, numerals, symbols, and the like for text message or wireless e-mail can be input to the liquid crystal display 54.

As described above, in the mobile communication terminal equipped with the dual keypad according to the present invention, a first keypad including buttons for controlling operations of a general terminal such as numbers, menu selection, storage, and call connection is formed on an external terminal body. A second keypad composed of character input buttons such as Korean alphabet, English uppercase and lowercase letters, and special characters is formed on the main body of the internal terminal so that numbers, You can enter characters by combining them. In addition, a text message or a text for wireless e-mail transmission can be input on a large liquid crystal display screen during a call, thereby improving the functional efficiency of the terminal and bringing convenience in use.

In addition, in the mobile communication terminal equipped with the dual keypad according to the present invention, the liquid crystal display screen is formed on the entire front of the liquid crystal display, so that the number of characters input through the first and second keypads is larger than that of the conventional liquid crystal display screen. Characters can be displayed.

Therefore, the creation of a short message or the contents of a mail of a wireless e-mail is made very easy, and it is suitable for transmitting and receiving a large amount of wireless data.

Claims (7)

An external terminal body having a speaker, a microphone, and a first keypad for a voice call formed in front of the terminal, and having a first window; The external terminal body is coupled to the first hinge portion rotatably in the open position and the closed position, and when the external terminal body rotates to the open position, the second keypad placed on the same plane as the first keypad, and the closed position An internal terminal body having a second window formed at a position overlapping with the first window when rotated; The inner terminal body is coupled to the second hinge portion rotatably in the open position and the closed position, and when the inner terminal body rotates to the open position, the inner terminal body is placed on the same plane as the first and second keypads to expose the entire screen area. And a liquid crystal display that exposes a portion of the screen through the first and second windows when the cover is rotated to the closed position, and includes a liquid crystal display unit on which a battery is mounted. The method of claim 1, Mobile communication terminal with a dual keypad, characterized in that the hinge rotation angle of the first and second hinge portion is 0 ° ~ 180 °. The method of claim 1, The second keypad is a mobile communication terminal provided with a dual keypad, characterized in that not formed to protrude to the surface of the internal terminal body. The method of claim 1, The external terminal body and the internal terminal body, the mobile terminal having a dual keypad, characterized in that the first locking means for maintaining a closed state, respectively. The method of claim 1, And a second locking means for maintaining the closed state in the internal terminal body and the liquid crystal display, respectively. The method of claim 4, wherein The first locking means includes a first magnet formed on a surface of the main body of the external terminal on which the first keypad is not formed; The mobile terminal with a dual keypad, characterized in that the second keypad is formed on the inner surface of the main body of the internal terminal is not formed with a second magnet facing the first magnet. The method of claim 5, The second locking means may include: a third magnet formed on a surface of the main body of the inner terminal on which the second keypad is formed; And a fourth magnet formed on a surface of the liquid crystal display unit on which the liquid crystal display screen is formed, the fourth magnet being opposed to the third magnet.