KR20070030566A - A cellular phone with dual LCD screens - Google Patents

Abstract

The present invention relates to a dual screen mobile communication terminal provided with two screen display devices. Specifically, the two screen display devices are provided in a simple and easy-to-use structure to provide a single large screen mobile communication terminal. It is about. The mobile communication terminal according to the present invention comprises: a first display unit provided with a first screen display device capable of displaying a screen; A second display unit capable of displaying a screen, the second display unit being spaced apart from the first display unit; A keypad exposed as the second display unit is spaced apart from the first display unit; Dual screen mobile communication terminal, characterized in that configured to include.

Mobile Phone, Mobile Phone, Cell Phone, Dual, Screen

Description

Dual screen mobile communication terminal {A cellular phone with dual LCD screens}

1 shows a conventional clamshell mobile communication terminal.

2 shows a conventional folding mobile communication terminal having a dual screen.

3 is a plan view of a mobile communication terminal in a closed state as a preferred embodiment of the present invention.

4 is a plan view of the mobile communication terminal of FIG.

5 is a perspective view of FIG. 3.

6 is a perspective view of FIG. 4.

7 is a perspective view of another embodiment of the present invention.

Description of the main parts of the drawing

1: body 2: cover

3: first screen display device 4: second screen display device

5: keypad

Korean Patent Publication No. 2002-0084368

The present invention relates to a dual screen mobile communication terminal provided with two screen display devices. Specifically, the two screen display devices are provided in a simple and easy-to-use structure to provide a single large screen mobile communication terminal. It is about.

Commonly used mobile telephones, cellular phones, cellular phones, cellular phones, personal communications services (PCS) phones, personal cellular phones, wireless communication terminals (WAP) phones, wireless application protocol (WAP) phones, and personal digital assistants (PDAs). A mobile communication terminal called a terminal, an IMT2000 (International Mobile Telecommunications 2000) terminal, etc. can carry voice calls and video calls with other parties, send and receive text messages, connect to the Internet, etc. It is a convenient communication tool that is always close to everyday life.

These mobile communication terminals have been developed in such a way that they are easy to carry, more convenient and can be used for various purposes because they are frequently carried and used in everyday life.

One of the well-known mobile phones commonly used as a mobile phone is known to be a dual folder or a dual LCD, and the conventional dual LCD mobile phone is a double-sided cover. Each one has one LCD screen.

The dual LCD type mobile phone has a problem that the LCD screen inside the cover is obstructed due to a structural problem in which the folding type mobile phone is folded in half, so that the user cannot receive the service using the LCD screen while the cover is closed. As an alternative, the LCD screen inside the cover is used when the cover is opened, and the LCD screen outside the cover is used when the cover is closed.

Dual LCD type mobile phone shown in Figure 1 is introduced in the Republic of Korea Utility Model Registration No. 20-0333934, the main body 200, the keypad 210 and the microphone 220, etc. for the key input and the auxiliary liquid crystal Screen (not shown), the main liquid crystal display 110 and the speaker 120 is provided with a clamshell cover 100 is installed. When the mobile phone is not normally used, the cover 100 is folded and carried toward the main body 200, and when the call or wireless data is exchanged, the mobile phone 100 is made to be in an open state after being used.

The conventional dual LCD type mobile phone as shown in FIG. 1 has a structure in which two screens cannot be viewed at the same time, as well as an auxiliary LCD screen installed on the outer surface of the cover, which is provided to perform only a simple function such as a letter or numeric display. There is a lot of inconvenience.

On the other hand, the use of mobile phones is gradually expanding from simple phone calls to internet access, personal information management, TV watching, and games, and mobile phone services are gradually increasing.

For example, when making a video call using the conventional mobile communication terminal as shown in FIG. 1, there is a problem in that only one image of a person who is talking is visible because there is only one main LCD screen. No. 20-0333934 introduces a mobile communication terminal as shown in FIG.

As shown, the mobile communication terminal of FIG. 2 includes a main body 30, a first folder 10, and a second folder 20. In addition, the main body 30 is provided with a keypad 32 for input and a microphone 34 as a transmitter, and the first folder 10 is coupled to the hinge 36 at one end of the main body 30. The second folder 20 is slidably moved along the grooves at both ends of the lower end of the main body 30.

In the first folder 10, a first LCD screen 12 is installed on an inner surface thereof, a speaker 16 is positioned above the first LCD screen 12, and a hinge 36 is disposed at one end of the main body 30. Combined and hinged.

The second folder 20 has a second liquid crystal display 22 installed on the inner side thereof and is slidably coupled to a specific position of the main body 30, and a mobile phone battery pack 24 is inserted into the rear side thereof. ) Are combined.

The mobile communication terminal as shown in FIG. 2 provides two liquid crystal screens, which solves the problem of the conventional mobile communication terminal as shown in FIG. 1 to some extent. There is a problem in that it is not possible to produce an effect as if one large screen is displayed by displaying on two LCD screens. In addition, since the demand for large screens has recently emerged by watching TV or playing games using a mobile communication terminal, the problem will be great.

In addition, the mobile communication terminal as shown in FIG. 2 has a disadvantage in that the screen must be maintained at all times in order to view the screen, and when the two screens are used together, the overall size of the mobile communication terminal is not only inconvenient to use, but also the folder. After opening and exposing one LCD screen, it is designed to be pulled out by sliding another LCD screen again, which is cumbersome and inconvenient to use.

In addition, since the keypad is always open when the mobile communication terminal uses two LCD screens as shown in FIG. 2, the keypad may be inadvertently pressed by a user's hand to interfere with the screen output state. Bar, there is another problem inconvenient to use.

The present invention has been invented to solve the above-mentioned problems of the conventional mobile communication terminal, and has an object to provide a mobile communication terminal that can be viewed with a large screen by providing two main screen display device.

In addition, the keypad may be covered so that the keypad is not accidentally pressed when viewing the screen output on the screen display device.

In addition, at least one of the main display device requires a separate sub-screen such as a sub-screen that is installed in a conventional clamshell cell phone so that the screen on which the screen is displayed is always exposed to the outside to inform the incoming call or display the time. Another object is to provide a mobile communication terminal that does not.

In addition, two main display devices may be arranged adjacent to each other to maximize the effect of providing a large screen, and as the two display devices are spaced apart, the keypad is exposed, especially between the two display devices. In addition to being convenient to use by allowing the keypads to be arranged in line, the overall size of the mobile communication terminal can be kept small without large changes even in a spaced state.

In addition, at least one of the two main screen display devices also functions as a touch panel capable of inputting a key by touching a screen, thereby allowing a predetermined key input to be used for convenience and an extended key input function. There is another purpose to provide.

The mobile communication terminal according to the present invention comprises: a first display unit provided with a first screen display device capable of displaying a screen; A second display unit capable of displaying a screen, the second display unit being spaced apart from the first display unit; A keypad exposed as the second display unit is spaced apart from the first display unit; Dual screen mobile communication terminal, characterized in that configured to include.

In the above description, the first screen display device and the second screen display device are preferably composed of LCD screens, which are widely used in the related art. However, any type of screen display device may be used as long as it meets the object of the present invention.

In addition, preferably, the two screen display devices are arranged adjacent to each other in parallel with each other in a state where the first display unit and the second display unit are not spaced apart from each other.

In addition, the keypad is installed on the first display unit and is exposed as the second display unit is spaced apart, preferably between the first display unit and the second display unit.

In addition, more preferably, the second display unit is slidably connected to the first display unit to make it easy to use by itself, and to reduce the overall size of the mobile communication terminal even when the two display devices are separated from each other. In addition to being able to hold, it also helps to maintain a form that is convenient for handholding.

In addition, at least one of the two screen display devices allows the surface on which the screen is displayed to be always exposed to the outside, and more preferably, both screen display devices expose the surface on the screen to the outside.

In addition, it is preferable that at least one of the two screen display devices performs a function of a touch panel capable of key input by touching a screen. Thus, the key input can be made possible without being spaced apart from the second display unit for key input while watching TV or the like, and the other advantages of having a dual screen can be maximized.

The apparatus may further include a locking device that locks the separation of the second display unit, thereby eliminating the use of a mobile communication terminal or displaying a single screen on the first screen display device and the second screen display device. When the display is divided into use to prevent the second display unit from being widely spaced apart.

On the other hand, the spaced apart from the first display unit of the second display unit in the above may be made in the longitudinal direction of the mobile communication terminal, or may be made in the transverse direction, in some cases the second display in the vertical direction The parts may be spaced apart while rotating.

Hereinafter will be described in detail through the preferred embodiment of the present invention shown in the accompanying drawings.

First, FIG. 3 is a plan view showing a state in which a cover corresponding to a second display unit of a mobile communication terminal according to the present invention is closed to a main body corresponding to a first display unit, and FIG. 4 is a plan view of an open state. 5 and 6 are perspective views of each.

As shown, an LCD screen is installed on the upper surface of the main body 1 as a first screen display device 3 on the main body 1, which is the first display unit, and on the cover 2, which is the second display unit, on the second display unit. As in (4), the LCD screen is similarly provided on the upper surface.

The main body 1 has a main electronic circuit board (not shown) printed with various chips and electronic circuits therein for performing various functions of the mobile communication terminal.

The first screen display device 3 installed on the main body 1 is installed so that the surface displaying the screen is always exposed to the outside, and the second screen display device 4 of the cover 2 also displays a screen. The surface is always installed to the outside.

The main body 1 is provided with a keypad 5 for key input, and the keypad 5 is covered by the cover 2.

That is, as shown, when the cover 2 is covered over the main body 1, the first screen display device 3 of the main body is exposed to the outside, and the keypad 5 is positioned under the cover 2. Covered by the cover 2 is not exposed to the outside, the cover 2 is exposed to the outside by sliding apart.

In this case, as shown in FIG. 6, the cover 2 may be slid along the longitudinal direction of the main body 1, or may be slid in the lateral direction as shown in FIG. 7.

Preferably, the cover 2 is slid spaced apart along the longitudinal direction of the main body 1 as shown in FIG. 6. The key pad 5 is exposed to the outside by sliding the main body 1 backward.

In the state where the keypad 5 is exposed as described above, the keypad 5 is located between the first screen display device 3 of the main body and the second screen display device 4 of the cover as shown in the mobile communication terminal. It is easy to use with one hand by keeping the width of the device as it is, and when using the second display device 4 of the cover as a touch panel as described below, the keypad 5 and the touch panel are used together. It can be convenient.

In addition, the screen display device 3 of the main body and the second screen display device 4 of the cover are configured to be arranged adjacent to each other side by side as shown in Figs. 3 and 5, whereby one screen is displayed on two screen display devices. In the case of dividing into, the large screen can be effectively obtained through a simple structure.

In addition, the cover 2 is slidably connected on the main body 1, so that the two display devices side by side as shown in FIGS. 3 and 5 in a state where the cover 2 is closed to the main body 1. When the cover 2 is opened by sliding the cover 2 to the rear of the main body 1, it is in a state as shown in FIG. 4 and the keypad 5 of the main body 1 is exposed to the outside.

When the cover 2 and the main body 1 are slidably connected in this way, they occupy less space and occupy less space than the case in which the cover 2 and the main body 1 are rotatably connected by hinges. In addition, it is possible to use the keypad 5 of the main body 1 while watching while maintaining the screen output state of the two display devices.

Here, the sliding structure with respect to the main body 1 of the cover 2 may be in any form as long as it is suitable for the present invention, and any sliding structure known in the art may be applied.

On the other hand, the first screen display device 3 of the main body or the first screen display device 4 of the cover is known in the prior art and the function of the touch panel is also well introduced in Korea Patent Publication No. 10-2005-0028638 Therefore, even if the main body 1 is not opened by sliding the cover 2, a predetermined key input is possible by touching a menu output to the screen display apparatus.

In the illustrated mobile communication terminal, the display devices are always exposed to the outside, and the two display devices are adjacently arranged side by side with the cover 2 covered on the main body 1, with the cover 2 covered. As a result of the convenience of use such as watching TV, the front surface of the mobile communication terminal can be used to output the screen, so that it can provide a large screen while meeting the trend of miniaturization of the mobile communication terminal. There is.

On the other hand, as shown in Figs. 8 and 9, as a locking device for locking the separation of the cover, the cover is prevalent through the locking protrusion 7 formed on the cover and the locking groove 6 formed on the main body. To prevent separation. 8 and 9, when the cover is closed, the locking protrusion 7 is inserted into the locking groove 6 to perform the locking function. In general, when the mobile communication terminal is not used, the machine is in the power saving mode and is in standby mode (e.g., when the folder is opened by the folder type mobile terminal or when the cover is slid from the slide type mobile terminal). In the case of opening), a large amount of power is consumed, such as a bright screen or a light on the keypad. If such a locking device is provided, a cover can be prevented from being opened in a wide range, thereby achieving a power saving effect.

Meanwhile, as shown in FIG. 10, the cover 2 may be rotatably installed with respect to the vertical direction of the main body 1, thereby allowing the keypad of the main body 1 to be exposed while the cover 2 is rotated. It may be. That is, in FIG. 10, the cover 2 is connected to the main body 1 by a hinge to rotate about the vertical direction, and the cover 2 rotates to expose the keypad in the main body 1. Here, preferably, when the cover 2 is rotated so that the main body 1 is fully opened, that is, when the cover 2 is rotated 180 degrees with respect to the main body 1, the second screen display device of the cover 2 The screen displayed in (4) is preferably controlled so that it can be seen immediately without being reversed.

In addition, while the rotation of the cover 2 may be rotated only in one direction, it is preferable to be configured to rotate about both the left and right, and in some cases may be configured to be rotated 360 degrees, but the rotation It is also possible to limit the rotation within 180 degrees by adding a simple locking structure to lock the.

According to the present invention, when dividing one screen into two display devices, the large screen can be effectively obtained through a simple structure, and occupied when the first display unit and the second display unit are slidably connected. It takes up less space, is easy to assemble and convenient to use by itself, and it is possible to use the keypad while watching and maintaining the screen output state of the two display devices.

In addition, the keypad is not exposed to the outside when it is not in use, thereby preventing the keypad from being pressed accidentally.

In addition, when at least one of the screen display device of the first display unit or the screen display device of the second display unit is configured to function as a touch panel, even if the keypad is not opened by separating the first display unit and the second display unit from each other. By touching a menu output on the screen display device, predetermined key input is possible, and when used with a keypad, an extended key input function can be provided.

Claims (10)

A first display unit provided with a first screen display device capable of displaying a screen; A second display unit capable of displaying a screen, the second display unit being spaced apart from the first display unit; A keypad exposed as the second display unit is spaced apart from the first display unit; Dual screen mobile communication terminal, characterized in that configured to include. The method of claim 1, The first screen display device of the first display unit is a dual screen mobile communication terminal, characterized in that the front surface is always exposed to the outside. The method according to claim 1 or 2, The second screen display device of the second display unit is a dual screen mobile communication terminal, characterized in that the front of the screen is always displayed to the outside. The method of claim 3, And the first screen display device of the first display unit and the second screen display device of the second display unit are arranged to be adjacent to each other side by side. The method of claim 3, And the keypad is exposed between the first display unit and the second display unit as the first display unit is spaced apart from the second display unit. The method according to any one of claims 1, 2, 4 and 5, At least one of the first screen display device of the first display unit and the second screen display device of the second display unit may function as a touch panel capable of inputting a key by touching a screen. Communication terminal. The method of claim 3, At least one of the first screen display device of the first display unit and the second screen display device of the second display unit may function as a touch panel capable of inputting a key by touching a screen. Communication terminal. The method of claim 3, And the second display unit is spaced apart from the first display unit in a lateral direction. The method according to claim 5 or 8, Dual-screen mobile communication terminal, characterized in that further comprises a locking device for locking the separation of the second display unit. The method of claim 1, The second display unit is spaced apart from the first display unit, the dual screen mobile communication terminal, characterized in that spaced apart by rotating in the vertical direction.

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