KR100499885B1 - Mobile communication terminal turning liquid crystal display - Google Patents

Abstract

The present invention is a folder-type mobile communication terminal consisting of an upper folder and a lower folder that is opened and closed by rotating the hinge, the upper folder is formed of a shorter length than the lower folder and one end is coupled to the lower folder and the hinge coupling A first upper folder and a liquid crystal display on which an image is output, and an upper end of the first upper folder opposite to the lower folder, the second upper folder being coupled to the outer surface by hinge coupling. By further including a second hinge coupled to the upper folder and the second upper folder in a hinged structure, the output direction of the LCD screen can be freely changed and the LCD screen can be held for a long time even if the user does not hold the mobile communication terminal by hand. Provides a mobile communication terminal capable of rotating the LCD screen can be seen stably.

Description

Mobile communication terminal capable of rotating LCD screens {Mobile communication terminal turning liquid crystal display}

The present invention is a folder-type mobile communication terminal consisting of an upper folder and a lower folder rotated around the hinge to open and close, the upper folder is in the open state can rotate the LCD screen provided on the inner side of the upper folder It relates to a mobile communication terminal capable of rotating the LCD screen.

Due to the rapid development of the information and telecommunications industry, the functions and types of mobile communication terminals such as mobile communication terminals and PDAs are rapidly developing, and the number of users of mobile communication terminals is also rapidly increasing. In addition, mobile communication terminals include a bar type, a flip type, a sliding type, and a folding type. Among them, the size of the mobile communication terminal is small and light, making it easy to carry and making the LCD screen larger than other models. Therefore, the folder type mobile communication terminal, which has the advantage of displaying a lot of information on one screen, has recently become a popular item.

A typical folder type mobile communication terminal is composed of a lower folder, an upper folder, and a hinge that opens and closes the lower folder and the upper folder to a call angle. In the conventional folder type mobile communication terminal, an antenna device is installed at an upper end of a lower folder, a keypad including a plurality of number keys and numeric keys is installed below the antenna device, and a transmitter is installed below the keypad. The upper folder that is opened and closed by a hinge on the lower folder has a receiver including a speaker, and an LCD is mounted below the receiver. At this time, the hinge that opens and closes the upper folder from the lower folder to a predetermined angle performs a function of connecting the upper folder and the lower folder mechanically and electrically. The opening angle of the upper folder is formed on the shape of a human face to improve reception and transmission sensitivity. Keep the angle around 150 degrees.

1 is a perspective view of a conventional clamshell mobile communication terminal.

When the upper folder 20 is opened to the opening angle determined by the designer as shown in FIG. Has a structure that is no longer open.

However, when using the conventional folder type mobile communication terminal in which the opening angles of the upper folder 20 are limited to 0 ° and 150 °, the user must watch the LCD screen for a long time such as video call or multimedia content viewing. After adjusting the output direction of the screen in a direction that is easy to see, there was a lot of inconvenience in terms of use because the mobile communication terminal should be fixed by hand.

The present invention has been made to solve the above problems, and provides a mobile communication terminal that can be rotated and fixed to the liquid crystal screen so that the user can see the LCD screen stably for a long time even if the user does not hold the mobile communication terminal by hand. The purpose is to.

In the mobile communication terminal capable of rotating the LCD screen according to the present invention for achieving the above object, in the foldable mobile communication terminal consisting of an upper folder and a lower folder rotated around the hinge, the upper folder is a lower folder. A first upper folder formed of a shorter length and having one end coupled to the lower folder by a hinge coupling, and having an LCD screen for outputting an image on the inner side, and having the first upper folder opposite to the lower folder coupled to the lower folder is hinged. And a second hinge coupled to the outer side, and further comprising a second hinge coupled to the first upper folder and the second upper folder in a hinged structure.

The first upper folder has a second hinge hole having a shape that can be coupled to the second hinge is formed along the central axis, and is coupled to the second upper folder by a second hinge cylinder which is formed in a direction parallel to the hinge coupling direction with the lower folder. It is provided at the end.

The second upper folder has a concave groove-shaped mounting groove on which the first upper folder can be seated on the outer side thereof, and is coupled to both ends of the second hinge cylinder on both side walls of the seating groove corresponding to both ends of the second hinge cylinder. A pair of second hinge knuckles are provided, respectively, and a second hinge groove having a concave groove shape that is engageable with the second hinge is formed on an inner side surface of the second hinge knuckle that is coupled to the second hinge.

In addition, the second hinge has a second coupling portion having a streamlined cam on one side and inserted into and coupled to the second hinge cylinder, and a cam of the second coupling portion in a rotatable structure independent of the second coupling portion. It is composed of a structure that is connected to the surface and receives the elastic force in the direction of contact with the cam and is capable of rotational movement. It comprises a first engaging portion having a slider formed to form the above-described rotation angle.

At this time, the rotation angle formed by the first slider groove and the second slider groove is 160 °.

Further, the rotation angle required for the cam to move from the lowest point of the first slider groove to the highest point and the rotation angle required for moving from the highest point of the second slider groove to the lowest point are respectively 30 °.

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

Figure 2a is a perspective view of a mobile communication terminal capable of rotating the LCD screen according to the present invention.

As shown in FIG. 2A, the mobile communication terminal capable of rotating the LCD screen according to the present invention includes a lower folder 100 having a pair of first hinge knuckles 110 protruding to an inner surface at both inner upper ends thereof; The first upper folder 200 is formed to have a shorter length than the lower folder 100 and the upper end of the lower folder 100 is hingedly coupled to the lower folder 100, and a concave groove shape can seat the first upper folder 200. The seating groove 310 is formed on the outer surface and comprises a second upper folder 300 is coupled to the lower end of the first upper folder 200 by a hinge coupling.

At this time, the hinge coupling of the upper end and the lower end of the first upper folder 200 forms a coupling in a direction parallel to each other.

On the outer surface of the first upper folder 200, the auxiliary liquid crystal screen 202 for outputting information frequently checked by the user, such as the current time, remaining battery capacity, and reception sensitivity, even when the first upper folder 200 is closed. ) Is provided.

Since the structure and operation of the auxiliary liquid crystal screen 202 are the same as the dual liquid crystal display applied to the conventional dual folder type mobile communication terminal, detailed description thereof will be omitted.

In addition, in this embodiment, the rotation angles of the first upper folder 200 and the second upper folder 300 are limited to 0 ° to 160 °.

2B is an exploded view of a mobile communication terminal capable of rotating a liquid crystal display according to the present invention.

As shown in FIG. 2B, the first upper folder 200 is combined with the lower folder 100 using the first hinge 220 as a medium, and the second hinge 240 as a medium. It is combined with the second upper folder 300 as a).

The first upper folder 200 includes a first hinge cylinder 210 formed at an upper end thereof so that a first hinge hole 212 having a shape that can be coupled to the first hinge 220 penetrates a central axis, and a second hinge. The second hinge hole 232 having a shape that can be coupled to the 240 is provided at a lower end of the second hinge barrel 230 formed to penetrate the central axis.

Since the hinge coupling between the lower folder 100 and the first upper folder 200 is the same as the hinge coupling of the conventional foldable mobile communication terminal, the coupling structure and operation description thereof will be omitted.

In addition, since the first hinge cylinder 210 and the second hinge cylinder 230 are formed to be parallel to each other, the hinge coupling between the first hinge cylinder 210 and the second upper folder 300 is the lower folder 100. It is in the direction parallel to the hinge coupling with).

The second upper folder 300 has a recessed groove-shaped mounting groove 310 on which the first upper folder 200 can be seated, formed on an outer side thereof, and corresponding to both ends of the second hinge cylinder 230. Both side walls of the groove 310 are provided with a pair of second hinge knuckles 320 and 320 'coupled to both ends of the second hinge barrel 230, respectively. A second hinge groove 322 having a concave groove shape that can be coupled to the second hinge 240 is formed on an inner surface of the second hinge knuckle 230 on the side of the second hinge 240.

The cable 250, which serves as a signal transmission between the first upper folder 200 and the second upper folder 300, has a first end through the end of the second hinge cylinder 230 opposite to the second hinge 240. It is coupled to the upper folder 200, it is coupled to the second upper folder 300 through the second hinge knuckle 230 'of the opposite side to which the second hinge 240 is coupled.

FIG. 3A shows the endurance configuration of the second hinge, and FIG. 3B shows the unfolded side surface portion of the slider applied to the second hinge.

As shown in FIG. 3A, the second hinge 240 includes a first coupling part 241 that is inserted into the second hinge hole 232 and rotates in accordance with the rotation of the first upper folder 200. Inserted into the second hinge groove 322 is configured to be divided into a second coupling portion 247 to rotate in accordance with the rotation of the second upper folder (300).

The second coupling portion 247 has a cam 248 protruding toward the first coupling portion 241.

The first coupling part 241 is configured to be rotatable independently of the second coupling part 247, and is configured to rotate in contact with the cam 248 and to be in contact with the cam 248. A slider 242 having a first slider groove 243 and a second slider groove 243 'having a concave groove shape so that the cam 248 can be buried in accordance with the rotational angle thereof, and in contact with the cam 248. It comprises a spring 244 for applying an elastic force to the slider 242 in the direction.

The first slider groove 243 and the second slider groove 243 ′ are formed in the slider 242 to form a rotation angle of 160 ° to bury the cam 248 at different angles.

When the first coupling part 241 and the second coupling part 247 are rotated in different directions in the state of FIG. 3A, the slider 242 rotates about the central axis of the shaft 245 and at the same time the cam 248. ) Makes linear movement in the direction in which the spring 244 is compressed by the depth of the first slider groove 243. When the rotation angle of the first engaging portion 241 and the second engaging portion 247 reaches 160 ° and the cam 248 reaches the position of the second slider groove 243 'shown in FIG. 3B, the slider 242 ) Is a linear movement in the direction in which the spring 244 is tensioned by the elastic force of the spring 244, the cam 248 is buried in the second slider groove (243 ').

When the cam 248 is buried in the first slider groove 243, the first upper folder 200 and the second upper folder 300 are parallel to each other, and the cam 248 is the second slider groove ( 243 ') is a case where the first upper folder 200 and the second upper folder 300 cross each other at an angle of 160 °.

In addition, since the first slider groove 243 and the second slider groove 243 'are each formed to have a rotation angle of 60 °, the cam 248 is positioned within 0 ° to 30 ° of the slider 241. In this case, it is seated in the first slider groove 243 by the elastic force of the spring 244, and is positioned in the second slider groove 243 'when positioned at 130 ° to 160 °.

Therefore, when the angle formed by the first upper folder 200 and the second upper folder 300 is within 0 ° to 30 °, the first upper folder 200 and the second upper folder 300 become parallel to each other. Direction and the first upper folder 200 and the second upper folder 300 when the angle between the first upper folder 200 and the second upper folder 300 is within 130 ° ~ 160 ° It is automatically rotated to make an angle of 160 °.

In addition, when the cam 248 is located within 30 degrees to 130 degrees of the slider 241, since the rotational motion can be freely stopped at any angle, the first upper folder 200 and the second upper folder 300 are Rotation can be stopped and fixed freely in the range of maintaining the angle of 30 ° ~ 130 ° mutually.

4A illustrates a shape in which the second upper folder is opened in the state of FIG. 3A, and FIG. 4B is a side view of FIG. 4A.

When the second upper folder 300 is opened in the state of FIG. 3A, as shown in FIGS. 4A and 4B, the first upper folder 200 coupled to the second upper folder 300 may have a first hinge (not shown). C) rotates with the lower folder 100 using the rotating shaft.

As shown in FIG. 4A, when the second upper folder 300 is opened, the keypad 120 and the transmitter 130 provided on the inner side of the lower folder 100 are exposed to the outside and the second upper folder 300 is exposed to the outside. Since the earpiece 330 and the LCD screen 340 provided on the inner side of the outside are also exposed to the outside, the user can use the mobile communication terminal according to the present invention as if using a conventional clamshell mobile communication terminal.

In addition, as shown in FIGS. 4A and 4B, when the first upper folder 200 and the second upper folder 300 are parallel to each other, the second upper folder 300 is rotated within 0 ° to 30 °. 3A and 3B, the second upper folder 300 is restored to be parallel to the first upper folder 200 due to the operation of the second hinge (not shown).

FIG. 5A illustrates a shape in which the second upper folder is rotated in the state of FIG. 4A, and FIG. 5B is a side view of FIG. 5A.

In the state of FIGS. 4A and 4B, when the first upper folder 200 is fixed and only the second upper folder 300 is rotated clockwise, as shown in FIGS. 5A and 5B, the second upper folder 300 may be rotated. The output direction of the earpiece 330 and the LCD screen 340 provided on the inner side is changed upward.

5A and 5B, the rotation angle of the second LCD screen 300 is 90 °, and the second LCD screen 300 is freely rotated within a range of 30 ° to 130 ° according to a user's selection. It can be fixed and can rotate up to 160 ° when rotated as far as possible.

In addition, when the second upper folder 300 is rotated in the opposite direction so that the angle formed with the first upper folder 200 is within 130 ° to 160 ° while the second LCD screen 300 is rotated up to 160 °. 3A and 3B, the second upper folder 300 is restored so that the angle formed with the first upper folder 200 becomes 160 ° due to the operation of the second hinge (not shown).

FIG. 6A illustrates a shape in which the second upper folder is seated on the lower folder by rotating the first upper folder in the state of FIG. 5A, and FIG. 6B is a side view of FIG. 6A.

When the first upper folder 200 is rotated until the lower end of the second upper folder 300 is seated in the lower folder 100 in the state of FIGS. 5A and 5B, as shown in FIGS. 6A and 6B. The output direction of the piece 330 and the liquid crystal display 340 is rotated counterclockwise.

When the second upper folder 300 is seated in the lower folder 100, even if the user does not hold the mobile communication terminal by hand, the output direction of the LCD screen 340 is fixed to be constant, so that the user can feel more comfortable with the LCD screen. An image output through 340 may be viewed.

In particular, when using a function that should watch the LCD screen for a long time, such as video call or multimedia content viewing, the usefulness of the mobile communication terminal according to the present invention is further increased.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment and should be interpreted by the attached claim.

In particular, the rotation angle between the first upper folder and the second upper folder is not limited to 160 ° mentioned in the present embodiment, and can be freely changed.

In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

The mobile communication terminal capable of rotating the LCD screen according to the present invention can freely change the output direction of the LCD screen, and the user can stably view the LCD screen for a long time even if the user does not hold the mobile communication terminal by hand. There is this.

1 is a perspective view of a conventional clamshell mobile communication terminal.

Figure 2a is a perspective view of a mobile communication terminal capable of rotating the LCD screen according to the present invention.

2B is an exploded view of a mobile communication terminal capable of rotating a liquid crystal display according to the present invention.

3A shows the durable construction of the second hinge.

FIG. 3B shows the unfolded side surface portion of the slider applied to the second hinge. FIG.

FIG. 4A illustrates a shape in which the second upper folder is opened in the state of FIG. 3A.

4B is a side view of FIG. 4A.

5B is a side view of FIG. 5A.

FIG. 6A illustrates a shape in which the second upper folder is seated on the lower folder by rotating the first upper folder in the state of FIG. 5A.

6B is a side view of FIG. 6A.

<Description of the symbols for the main parts of the drawings>

100: lower folder 110: first hinge knuckle

200: first upper folder 210: first hinge cylinder

212: first hinge hole 220: first hinge

230: second hinge cylinder 232: second hinge hole

240: second hinge 241: first coupling portion

242: slider 243: slider groove

244: spring 245: shaft

247: second coupling portion 248: cam

250: cable 300: second phase folder

310: seating groove 320: second hinge knuckle

322: hinge groove

Claims (7)

In the foldable mobile communication terminal consisting of the upper folder and the lower folder that is opened and closed by rotating the hinge, The upper folder, A second hinge cylinder having a length shorter than the lower folder and having one end hinged to the lower folder and having a second hinge hole therein at the other end thereof in a direction parallel to the hinge coupling direction with the lower folder. The first phase folder is formed to be elongated, and the liquid crystal display for outputting various image information is provided on the inner side, and the recessed groove-shaped seating groove on which the first phase folder is seated is provided on the outer side. A pair of second hinges having recessed second hinge grooves at positions corresponding to both ends of the hinge cylinders, respectively, on both side walls of the seating grooves corresponding to both ends of the hinge cylinders. It comprises a knuckle-shaped second phase folder, And a second hinge coupled to a second hinge hole provided in the second hinge cylinder of the first phase folder and a second hinge groove provided in the second hinge knuckle of the second phase folder. delete The method of claim 1, The first upper folder, And an auxiliary LCD screen for outputting one or more information in a state where the upper folder is closed, on an outer side of the upper folder. The method of claim 1, The second hinge is, A second coupling part having a streamlined cam on one side and inserted into and coupled to the second hinge barrel; The structure is rotatable independently of the second coupling portion is coupled to the surface is provided with the cam, the second coupling portion is configured to receive a resilient force in the direction that is in contact with the cam and capable of rotational movement and rotate when rotating A first coupling part including a slider having a concave groove-shaped first slider groove and a second slider groove formed at a rotation angle of 30 ° or more to allow the cam to be buried according to an angle; Mobile communication terminal, characterized in that configured to include. The method of claim 4, wherein The rotation angle formed by the first slider groove and the second slider groove, Mobile communication terminal, characterized in that 160 °. The method according to claim 4 or 5, The first slider groove, And the cam is formed such that a rotation angle required for moving the cam from the lowest point of the first slider groove to the highest point is 30 °. The method according to claim 4 or 5, The second slider groove, And the cam is formed such that a rotation angle required for moving the cam from the highest point to the lowest point of the second slider groove is 30 °.