KR20040056418A - A cellular phone having an multi-step extending LCD - Google Patents

Abstract

PURPOSE: A mobile terminal having a multi-step extended LCD is provided to extend various information display region while maintaining a compact-size mobile terminal. CONSTITUTION: A main body part(10) includes a circuit board for converting an input signal of a key pad into a circuit signal and a microphone positioned at the lowermost portion. A folder part(20) includes a speaker(21) provided at the uppermost portion and a plurality of LCDs for displaying data inputted from the key pad of the main body part(10) and being extendable to one side by being stacked. A hinge part(50) rotatably connects the main body part(10) and the folder part(20) so that the folder part(20) and the main body part(10) can be mode from a folded state to an unfolded state. A rotating unit rotates the plurality of LCDs stacked on the folder part(20) to the same level.

Description

Mobile terminal with multi-stage extended liquid crystal display {A cellular phone having an multi-step extending LCD}

The present invention relates to a mobile terminal having a multi-stage extended liquid crystal display. Particularly, while maintaining the miniaturization of the size of the mobile terminal, it is possible to expand the size of the liquid crystal display screen so as to expand various information display areas and display high capacity data. The present invention relates to a mobile terminal having an extended liquid crystal display that can provide a comfortable display environment.

Recently, due to the development of the mobile communication industry, portable mobile communication terminals (hereinafter referred to as 'mobile terminals') have been widely distributed. With the development of the mobile terminal market, the function of the mobile terminal itself is also improving.

In particular, in recent years, not only the functional aspect of a mobile terminal, but also the size thereof is gradually becoming smaller.

In this way, the liquid crystal display of the mobile terminal (hereinafter referred to as 'LCD') in order to reduce the size of the mobile terminal and to more efficiently view the data display and moving images according to the increase of data exchange. Larger size is required.

1 is a plan view illustrating an open state of a folding mobile terminal in which a general liquid crystal display is installed.

As shown in Fig. 1, a general folding type mobile terminal is largely composed of a main body 1, a folder 2, and a hinge device 3 which opens and closes the folder 2 from the main body 1. It is composed. Accordingly, the folder part 2 is opened and closed in the collapsed state and the unfolded state by the rotational movement about the rotation axis of the hinge device 3 in the main body part 1.

The main body 1 includes a keypad 1a composed of a number key, a power key, and a function key, and a microphone 1b positioned at the bottom thereof.

The folder portion 2 has an earpiece including a speaker 2a at the top thereof, and a liquid crystal display 4 as data display means under the earpiece.

In such mobile terminals, wireless communication for transmitting and receiving high-capacity web data is increasing, and the mobile terminal receiving web data is also an essential requirement for the expansion of the liquid crystal display screen to receive high-capacity data and display it visually to the user. have.

However, there is a problem in that the size of the liquid crystal display screen is limited because it is disposed in a user's desire for a smaller and lighter mobile terminal, which is more convenient to carry and use.

Accordingly, the present invention has been made to solve the above problems, while maintaining the miniaturization of the size of the mobile terminal, it is possible to expand the size of the liquid crystal display screen to expand the various information display area to display high-capacity data. It is an object of the present invention to provide a mobile terminal having a multi-stage extended liquid crystal display.

In addition, the present invention has another object to provide a mobile terminal having a multi-stage extended liquid crystal display that can provide a comfortable display environment by performing a variety of complex functions at the same time as the size of the liquid crystal display screen is expanded. .

1 is a plan view illustrating an open state of a folding mobile terminal in which a general liquid crystal display is installed.

2A and 2B are a plan view and a side view, respectively, illustrating a state in which a mobile terminal having a multi-stage extended liquid crystal display according to the present invention is not expanded.

3A and 3B are a plan view and a side view showing an extended state of a mobile terminal having a multi-stage extended liquid crystal display according to the present invention, respectively.

4 is a perspective view illustrating a state in which an extended liquid crystal display is expanded in a mobile terminal having a multistage extended liquid crystal display according to the present invention;

5A to 5C are side views schematically illustrating a process of expanding an extended liquid crystal display in a mobile terminal having a multistage extended liquid crystal display according to the present invention;

* Explanation of symbols for main parts of the drawings

10: Main Unit 11: Input Button

20: folder portion 30: first liquid crystal display portion

31: first liquid crystal display screen 40: second liquid crystal display

41: first liquid crystal display screen 32, 42: liquid crystal panel

50: hinge means 60: rotation means

61, 62: rotating shaft 63: connecting link

The present invention to achieve the object of the present invention, the main body including a circuit board for converting an external signal into an electrical signal; A folder unit for displaying data provided from the circuit board; A plurality of liquid crystal display units stacked on the folder unit and extending to one side; Hinge means for rotatably connecting the main body and the folder portion; And it provides a mobile terminal having a multi-stage extended liquid crystal display comprising a rotating means for rotating the plurality of liquid crystal display in a stacked state to be rotated in the same plane state.

The liquid crystal display may include a first liquid crystal display comprising a first liquid crystal display screen and a first accommodating panel for accommodating the first liquid crystal display screen; A second liquid crystal display disposed under the first liquid crystal display, the second liquid crystal display comprising a second liquid crystal display screen and a second accommodating panel accommodating the second liquid crystal display screen; And a flexible circuit board electrically connected to the printed circuit board of the main body and connected to the first and second liquid crystal display screens.

The pivoting means may include: first hinge shafts provided on both outer surfaces of the first receiving panel; Second hinge shafts provided on outer surfaces of both sides of the second receiving panel; And a pair of connecting links having one end and the other end hinged to the first hinge axis and the second hinge axis.

The rotating means may include first hinge shafts provided in both side portions of the first receiving panel; Second hinge shafts provided in both sides of the second receiving panel; A pair of connecting links having one end and the other end hinged to the first hinge axis and the second hinge axis; And a guide groove formed on the opposing surfaces of the first and second receiving panels facing the connection links, the connection links being accommodated in the first and second liquid crystal panels, and the connecting links being guided during rotation.

The first liquid crystal display is divided into two parts and is rotated to both sides from an upper surface of the second liquid crystal display to be positioned on the same horizontal plane.

The folder portion further includes a rotation mechanism for driving the rotation means such that the plurality of liquid crystal display portions can be automatically rotated.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

2A and 2B are plan and side views illustrating a state in which a mobile terminal having a multistage extended liquid crystal display according to the present invention is not expanded, and FIGS. 3A and 3B are respectively provided with a multistage extended liquid crystal display according to the present invention. A plan view and a side view showing an extended state of one mobile terminal. 4 is a perspective view illustrating a state in which an extended liquid crystal display is expanded in a mobile terminal having a multistage extended liquid crystal display according to the present invention.

As shown in the figure, a mobile terminal having a multi-stage extended liquid crystal display according to the present invention includes a large detachable battery (not shown), and an input button 11 such as a number key, a power key, and a function key is provided. A main body portion 10 including a formed keypad (not shown), a circuit board (not shown) for converting an input signal of the keypad into a circuit signal, and a microphone 12 positioned at a lower end thereof; A folder unit (20) which displays data input from the speaker (21) provided at the top and the keypad of the main body unit (10), and is provided in a stack and includes a plurality of liquid crystal display units which can be extended to one side; Hinge means 50 and the folder for rotatably connecting the main body portion 10 and the folder portion 20 so that the folder portion 20 and the main body portion 10 are moved from the folded state to the unfolded state. And rotating means 60 for rotating the plurality of liquid crystal display parts 30 and 40 stacked on the part 20 to be rotated in the same plane state in the stacked state.

The liquid crystal display portion of the folder portion 20 includes a first liquid crystal display portion 30 and a first liquid crystal display portion 40, wherein the first liquid crystal display portion has a first liquid crystal display screen 31 and the first liquid crystal display. A first accommodating panel 32 accommodating the screen 31, and the second liquid crystal display 40 includes a second liquid crystal display screen 41 and a second liquid crystal display screen 41. It consists of a receiving panel 42.

Here, the liquid crystal display screens 31 and 41 of the liquid crystal display unit 30 and 40 may be electrically connected to and printed out of a printed circuit board (not shown) of the main body unit 10. FPCB: Connected to Flexible Printed Ciruit Board.

The rotation means 60 includes a first hinge shaft 61 provided at both sides of the first receiving panel 32 and a second hinge shaft 62 provided at both sides of the second receiving panel 42. And a pair of connecting links 63 having one end and the other end hinged to the first hinge shaft 61 and the second hinge shaft 62.

Here, in the drawings of the present invention (see Fig. 4), the first and second hinge shafts 61 and 62 are not formed on both outer sides of the first and second receiving panels 32 and 42, and both sides are provided. It is formed in the inner side, the connecting link 63 is accommodated in the first and second liquid crystal panel 32, 42, the guide groove for guiding the connecting link 63 during rotation (not shown) Formed.

In addition, the length of the connection link 63 is the first liquid crystal display 30 and the second liquid crystal display 40 when the first liquid crystal display 30 and the second liquid crystal display 40 are located on the same horizontal plane. Corresponds to a distance at which the first and second hinge shafts 61 and 62 and the connection link 63 have a predetermined frictional force.

Meanwhile, in the above description, the first and second hinge shafts 61 and 62 are formed inside both sides of the first and second receiving panels 32 and 42, but the first and second receiving panels 32 It may be formed on both outer surfaces of the 42, in this case does not require a guide groove for receiving and guiding the connection link (63).

In the above description, the first liquid crystal display unit 30 is rotated from the upper surface of the second liquid crystal display unit 40 so as to be positioned on the same horizontal plane. However, the first liquid crystal display unit 30 is divided into two parts. 2 may be configured to rotate on both sides from the upper surface of the liquid crystal display 40 to be positioned on the same horizontal plane.

In addition, in the above description, the first liquid crystal display unit 30 is formed by a user's manual operation to form the same plane as the second liquid crystal display unit 40, but the first liquid crystal display unit 30 is the second liquid crystal display unit 40. It may include a rotation mechanism to automatically rotate from to form a horizontal plane.

As an example of the rotation mechanism, a micro motor provided in the liquid crystal panel of the second liquid crystal display unit, a connecting shaft connected to the rotating shaft of the motor, one end connecting the connecting shaft and the other end connected to the connecting shaft of the first liquid crystal display unit The first liquid crystal display may be rotatable on the second liquid crystal display by rotating the connection link driven by the motor.

Referring to Figures 5a and 5b the operation of the mobile terminal having a multi-stage extended liquid crystal display of the present invention configured as described above is as follows.

5A to 5C are side views schematically illustrating a process of expanding an extended liquid crystal display in a mobile terminal having a multistage extended liquid crystal display according to the present invention.

First, when only a normal call function is used, as shown in FIG. 2A, the first liquid crystal display unit 30 is overlapped with the second liquid crystal display unit 40 to use only the first liquid crystal display screen 31. At this time, the liquid crystal display screen 41 of the second liquid crystal display 40 is kept off or in a power saving state.

On the other hand, when a user needs a wide screen, the user grasps both sides of the first liquid crystal display unit 30 and moves in the direction of arrow A. FIG. At this time, both ends of the connection link 63 rotates in the direction of arrow B with respect to the first and second hinge shafts 61 and 62 as shown in FIGS. 5A to 5B to form the same horizontal plane as shown in FIG. 5C. Therefore, the user can use the first liquid crystal display 30 and the second liquid crystal display 40 at the same time and can work on a wide screen.

Here, when the first liquid crystal display unit 30 is unfolded from the second liquid crystal display unit 40 and used, the related programs displayed on the first and second liquid crystal display units 30 and 40 may be divided into two parts. have. That is, the first and second LCDs 30 and 40 may be programmed to be selected by the user so as to form one screen or to form separate screens, respectively.

For example, when the user plays a game in the liquid crystal display unit 30 on one side using the extended liquid crystal display unit, checks the text message in the liquid crystal display unit 40 on the other side, or when the multimedia is executed, the extended liquid crystal display unit 30 The printed circuit board has this function so that it can be displayed on the entire screen.

Subsequently, when the user wants to return to the original state, the first liquid crystal display unit 30 is superimposed on the second liquid crystal display unit 40, the detailed operation is omitted since the above operation is performed in reverse operation. When the first liquid crystal display unit 30 returns to the state in which the first liquid crystal display unit 30 is superimposed on the second liquid crystal display unit 30, the second liquid crystal display unit 40 is turned off again or switched to a power saving state.

The mobile terminal having the extended liquid crystal display of the present invention configured as described above is portable when the extended liquid crystal display is not used, by folding the first liquid crystal display, and extending the first liquid crystal display to expand the two liquid crystal displays. By doing so, it is possible to perform a combination of various functions for searching for desired information or making a video call.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the mobile terminal having the multi-stage extended liquid crystal display according to the present invention can expand the size of the liquid crystal display screen and expand various information display areas while maintaining the size of the mobile terminal, thereby providing high capacity data. There is an effect that can be displayed.

In addition, the present invention can perform a variety of complex functions at the same time as the size of the liquid crystal display screen is expanded, there is an effect that can provide a comfortable display environment.

Claims (7)

A main body including a circuit board converting an external signal into an electrical signal; A folder unit for displaying data provided from the circuit board; A plurality of liquid crystal display units stacked on the folder unit and extending to one side; Hinge means for rotatably connecting the main body portion and the folder portion; And Rotating means for rotating the plurality of liquid crystal display to be rotated in the same plane state in a stacked state Mobile terminal having a multi-stage extended liquid crystal display comprising a. The method of claim 1, The liquid crystal display unit, A first liquid crystal display comprising a first liquid crystal display screen and a first accommodating panel for accommodating the first liquid crystal display screen; A second liquid crystal display disposed under the first liquid crystal display, the second liquid crystal display comprising a second liquid crystal display screen and a second accommodating panel accommodating the second liquid crystal display screen; And A flexible circuit board electrically connected to the printed circuit board of the main body and connected to the first and second liquid crystal display screens. Mobile terminal having a multi-stage extended liquid crystal display comprising a. The method according to any one of claims 1 to 3, The rotation means, First hinge shafts provided on outer surfaces of both sides of the first accommodating panel; Second hinge shafts provided on outer surfaces of both sides of the second receiving panel; And A pair of connecting links, one end and the other end of which is hinged to the first hinge axis and the second hinge axis A mobile terminal having a multi-stage extended liquid crystal display. The method according to any one of claims 1 to 3, The rotation means, First hinge shafts provided in both sides of the first receiving panel; Second hinge shafts provided in both sides of the second receiving panel; A pair of connecting links having one end and the other end hinged to the first hinge axis and the second hinge axis; And A guide groove formed in the first and second liquid crystal panels facing the first and second accommodating panels facing the connecting links so that the connecting links can be guided during rotation; A mobile terminal having a multi-stage extended liquid crystal display. The method of claim 2, The first liquid crystal display is divided into two parts and is rotated to both sides from an upper surface of the second liquid crystal display to be positioned on the same horizontal plane. A mobile terminal having a multi-stage extended liquid crystal display. The method of claim 1, The folder part And a rotating mechanism for driving the rotating means to automatically rotate the plurality of liquid crystal displays. A mobile terminal having a multi-stage extended liquid crystal display. The method of claim 1, The printed circuit board has a function of displaying a separate screen on each of the plurality of liquid crystal displays or displaying a single screen on the entire screen. A mobile terminal having a multi-stage extended liquid crystal display.