KR100754600B1 - Coupling device for display unit in mobile phone - Google Patents

Abstract

A coupling unit for the display unit of a portable terminal is provided to improve the efficiency of assembly by having a display unit, a clamping unit, an auxiliary clamping unit, and the first and second stepped parts. A coupling unit for the display unit(110) of a portable terminal is composed of a main body casing(100), an LCD module(112), an LCD window(120), the first clamping holes(102), the second clamping holes(122), and clamping screws(S). The LCD module(112), moving from the outside of the main body casing(100) to the inside, is coupled into the main body casing(100). The LCD window(120), installed on the LCD module(112), is arranged so that the upper surface of the LCD window(120) can be exposed at the upper surface of the main body casing(100). The first clamping holes(102) are formed inside of the main body casing(100). The second clamping holes(122), formed at the lower part of the LCD window(120), are respectively matched with the first clamping holes(102). The clamping screws(S), moving from the lower part of the LCD module(112) to the upper part, are vertically inserted into the first and second clamping holes(102,122).

Description

COUPLING DEVICE FOR DISPLAY UNIT IN MOBILE PHONE}

1 is a front view showing a portable terminal equipped with an LCD module according to an embodiment of the prior art.

Figure 2 is a cross-sectional view showing a coupling state of the LCD module mounted on the portable terminal according to an embodiment of the prior art.

3 and 4 are perspective views illustrating a process in which an LCD module is coupled to a portable terminal according to an exemplary embodiment, respectively, FIG. 3 is a state before coupling, and FIG. 4 is a perspective view showing a state in which the coupling is partially cut.

5 is a front view showing a portable terminal equipped with an LCD module according to the present invention.

6 is a bottom view of FIG. 5.

7 and 8 are perspective views respectively showing a process of the LCD module is coupled to the portable terminal according to the present invention, Figure 7 is a state before coupling, Figure 8 is a perspective view showing a part of the state after coupling.

9 is a cross-sectional view showing a coupling state of the LCD module of the mobile terminal according to the present invention.

The present invention relates to a mobile terminal including a DM phone, a game phone, a chat phone, a camera phone, an MP3 phone, a cellular phone, a PCS, a personal digital assistant (PDA), a hand-held phone (HHP), and the like. In particular, it relates to a coupling device of a liquid crystal display device.

The term “portable communication device” of a conventional concept refers to an electronic device that a user can carry out wireless communication with a counterpart while carrying. Such portable communication devices have been trending toward miniaturization, slimness, grip, and light weight in consideration of portability, and are moving toward a multi-mediaization direction to pursue more various functions. In particular, more and more portable terminals will be used for miniaturization, light weight, multifunction, and versatility, and will be modified to adapt to various multimedia environments or the Internet environment.

Conventional portable communication devices are classified into various types in appearance. For example, portable communication devices are classified as bar-type, flip-type, or folder-type communication devices depending on their appearance. The bar-type communication device means that the single housing is configured as a bar-type, the flip-type communication device means that the flip is rotatably configured by the hinge device in the bar-type housing, the folder-type communication device is In a single bar-shaped housing, a folder is configured to be rotatably connected and folded by a hinge device. In addition, the portable communication device may be classified into a rotation-type or sliding-type communication device according to an opening and closing method. The rotation-type communication device means that the two housings are rotatably connected and opened while remaining facing each other, and the sliding-type communication device means that the two housings are opened and closed by sliding movement in the longitudinal direction. it means. The variously classified communication devices listed above will be readily understood by those of ordinary skill in the art.

Conventional portable terminals essentially include an input / output device, a handset, an antenna device, and the like, and in particular, a display device for visually checking the input data. In the conventional display device, a liquid crystal display device is commonly used.

1 illustrates a display device mounted on a conventional portable terminal. The portable terminal 20 shown in FIG. 2 is a bar-type portable terminal, and a keypad 230 including a speaker device 210, a display device 220, and an arrangement of a plurality of keys is provided on an upper surface 200a of a main body casing 200. Are mounted sequentially. The speaker holes of the speaker device 210 are visible from the outside of the main body casing upper surface 200a, the LCD device is visible from the outside of the LCD device, and the keys of the keypad 230 only have their key tops. Shown.

Referring to FIGS. 2 to 4, the coupling structure of the display device 220 employed in the conventional portable terminal is as follows. The display device 220 is moved upward and coupled to the bottom of the main body casing 200. In addition, the display device 220 includes an LCD window 222 disposed to be exposed to the outside of the main body casing 200, and an LCD module 224 integrally mounted on a bottom surface of the LCD window 222. At this time, the LCD window 222 is integrally provided on the LCD module 224, it is coupled to the main body casing 200 in a narrower configuration than the upper surface area of the LCD module 224. That is, since the LCD module 224 is wider than the LCD window 222, it is generally assembled by moving from below to upward. Since the display device 220 is assembled by moving from below, the first step portion 226 provided around the periphery of the LCD module 222 has a shape in which a slot is opened upward and the main body is formed. The second step portion 204 provided on the inner wall of the casing 200 has a shape in which a slot opened downward is provided.

However, the following problem occurs in the coupling structure of the display device 220 mounted in the conventional portable terminal.

First, the coupling structure of the conventional display device has to be fastened to the main body casing 200 by moving the display device 220 from below to upward, which is inconvenient from the assembly point of view, which is one of the causes of the deterioration of the assembly. It became. Moreover, this not only lowered the assemblability but also contributed to an increase in defective rate generation.

Secondly, in the conventional display device 220, the LCD module 224 is larger than the LCD window 222, and only the LCD window 222 is disposed to be exposed in the main body casing 200. Problems that constrain the appearance of the mobile terminal have been caused.

Accordingly, an object of the present invention is to move the LCD module from the upper side to the lower side or the outer side of the main body to the inner direction and is fastened by a separate fastener, so that the display device assembling property is improved from the manufacturer's point of view. In providing a coupling device.

Another object of the present invention is that the LCD window is larger than the LCD module is fastened from the outside of the main body casing inward or downward from the outside, so that from the designer's point of view, the external design of the portable terminal is free for the display device In providing a coupling device.

Another object of the present invention is to provide a coupling device for a display device of a portable terminal having an auxiliary fastening means and improving a fastening structure.

Another object of the present invention is the first and second stepped portions are formed in the LCD window and the main body casing, respectively, the first stepped portion has a slot which is open upward, the second stepped portion has a slot which is opened downward, The present invention provides a coupling device for a display device of a portable terminal that provides a process of assembling the second stepped portion by moving the stepped portion from the upper side to the lowered portion.

In order to achieve the above object, the present invention provides a combination device for a display device of a portable terminal,

Body casing; And

And a display device which is moved downward on the main body casing and coupled to expose the top surface of the main body casing.

In addition, the present invention provides a portable terminal,

Body casing;

An LCD module coupled to the main body casing by moving inward from the main body casing;

An LCD window mounted on the LCD module and disposed to expose an upper surface of the main body casing;

At least one first fastening hole formed in the body casing;

At least one second fastening hole formed under the LCD window to correspond to the first fastening hole and disposed in a stack under the first fastening hole; And

The fastener is moved upward from the bottom of the LCD module and coupled to the first and second fastening holes in a vertical direction.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

5 illustrates the top surface 100a of the mobile terminal 10 employing the display device 110 according to the present invention. Referring to FIG. 5, in the portable terminal 10, a display device 110 and a key pad 130 in which a plurality of keys 132 are arranged are arranged on an upper surface 100a of a bar-shaped main body casing 100. FIG. 5 shows an upper line L1 of the LCD module of the display device 110 and an outer line L2 of the LCD window, and shows a key top of each of the keys 132 of the keypad. The LCD window 120 is made of a transparent material so that the top surface line L1 of the LCD module is visible.

6 illustrates a bottom surface 100b of the portable terminal 10 employing the display device according to the present invention. Referring to FIG. 6, in the portable terminal 10, a flexible display device (FPCB) connected to a display device, specifically, a bottom of an LCD module, is disposed on a bottom surface 100b of a bar-shaped main body casing 100. In FIG. 6, the bottom surface line L3 of the flexible circuit FPCB is shown. The dotted line in FIG. 6 refers to the bottom outer line L1 of the LCD module.

As shown in FIGS. 7 to 9, a coupling device for a display device employed in a portable terminal according to the present invention includes a main body casing 100 and a downward movement on the main body casing 100. And a fastening means for moving the display device 110 downward and upward to couple the display device 110 to the main body casing 100. Preferably, the display device 110 is coupled to the main body casing 100 by moving from the outside of the main body casing 100 to the inside direction, specifically, above the main body casing 100 and vertically downward. From the assembly point of view, the operation of moving the object to be assembled is more convenient and accurate than moving from top to bottom than from bottom to top.

The display device 110 has an LCD module 112 and a width larger than that of the LCD module 112, specifically, a width of the upper plate of the LCD module 112 is greater than that of the LCD module 112, and the upper surface thereof is disposed on the upper surface of the main body casing 100A. It consists of an LCD window 120 coupled to be exposed. 8, the LCD module 112 and the LCD window 120 are fully coupled to the main body casing 100. At this time, the upper surface of the LCD window 120 is arranged on the same plane as the upper surface of the main body casing (100A).

The display device 110 is coupled to the main body casing 100 using a separate fastener S, for example, a component such as a screw. In particular, the display device 110 is coupled to the inside of the main body casing 100 by a fastener (S). The fastener S moves upward from the bottom of the body casing 100 to couple the LCD window 120 integrally formed with the LCD module 112 to the inside of the body casing 100. In addition, as illustrated in FIG. 7, the fastening means may include at least one first fastening hole 102 formed in the main body casing 100 and a lower portion of the LCD window 120 to form the first fastening hole. At least one second fastening hole 122 and the first and second fastening holes 122 which are disposed in a stack under the first fastening hole 102 and move upwardly from the lower side of the CD module 112. Consists of the fastener (S) coupled to the vertical direction (102, 122). Of course, the fastener S is fastened using an electric driver not shown.

As shown in FIG. 5, when the display device 110 is mounted on the main body casing 100, the LCD module 112 is disposed in a predetermined space inside the main body casing 100. The LCD window 120 occupies an area of at least half of the upper surface 100a of the main body casing 100. This provides the advantage that the exterior design of the mobile terminal is more free from the point of view of the designer, and in particular, the external design associated with the display device is free compared with the conventional.

As shown in FIG. 7, the LCD window 120 further includes an auxiliary fastening means 126. The auxiliary fastening means 126 is composed of a protrusion protruding laterally from the LCD window 120, the protrusion is coupled to the groove formed in the inner wall of the main body casing (100) not shown.

In addition, since the display device 110 is assembled by moving from the upper side to the lower side of the main body casing 100, a first step part 128 extends along the outer side of the LCD window 120. A second step part 104 is provided around the main body casing 100 to correspond to the first step part 128. Of course, the first stepped portion 128 is provided in a downwardly open shape, and the second stepped portion 104 is provided in an upwardly open shape.

As described above, the present invention includes the assembling direction of the display device, the fastening means, the auxiliary fastening means, and the first and second stepped portions, thereby improving the assemblability from the viewpoint of the assembling company. In addition, the present invention achieves the advantage that the appearance design of the portable terminal, in particular, the design related to the display device, is free from the viewpoint of the designer. Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

Claims (8)

In the combined device for a display device of a mobile terminal, Body casing; And A display device coupled to the main body casing so as to be moved downward on the main body casing so that the upper surface thereof is exposed and coupled to the inside of the main body casing using a separate fastener. Device. The display device of claim 1, wherein the display device LCD module; And And an LCD window integrally mounted on the LCD module in a state where the width of the LCD module is larger than that of the LCD module, and having an upper surface thereof coupled to be exposed on the main body casing. delete The coupling device of claim 1, wherein the fastener is moved upward from the bottom of the main body casing so that the LCD module is coupled to the inside of the main body casing. 3. The coupling device of claim 2, wherein the LCD window occupies at least half of an upper surface of the main body casing. In a mobile terminal, Body casing; An LCD module coupled to the main body casing by moving inward from the main body casing; An LCD window mounted on the LCD module and disposed to expose an upper surface of the main body casing; At least one first fastening hole formed in the body casing; At least one second fastening hole formed under the LCD window to correspond to the first fastening hole and disposed in a stack under the first fastening hole; And And a fastener coupled to the first and second fastening holes in a vertical direction by moving upward from the lower side of the LCD module. The coupling device of claim 6, wherein the upper portion of the LCD window is larger than the LCD module. 7. The LCD of claim 6, wherein the LCD window further includes a first stepped portion extending along an outer circumference and downwardly opened, wherein the body casing corresponds to the first stepped portion and is opened upwardly along an inner wall. And a second step portion further comprising a coupling device for a display device of a portable terminal.

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