KR100319202B1 - Liquid crystal display device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, wherein a protrusion is formed on a side of an LCD module, and a fixing member having a protrusion fixing groove for fixing the protrusion in a predetermined area of the case is installed, and then the protrusion is coupled to the protrusion fixing groove in one direction. In this case, the area of the case can be minimized by reducing the coupling area between the LCD module and the case.

In addition, the inconvenience caused by the conventional coupling of the LCD module and the case through the screw coupling is eliminated to improve the work efficiency.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device that can reduce the overall weight of the case by reducing the coupling space between the LCD module and the case by changing the combination of the LCD module and the case.

In general, as the modern society becomes information socialized, the importance of liquid crystal display devices such as notebook computers, which are one of information display devices, is gradually increasing.

Cathode ray tube (CRT), which is widely used so far, has many advantages in terms of performance and cost, but has many disadvantages in terms of miniaturization or portability.

On the other hand, as an image display module applied to a liquid crystal display device such as a notebook computer, a liquid crystal display module (hereinafter referred to as an LCD module) applying the physical and optical characteristics of the liquid crystal is widely adopted, and a conventional CRT Compared to (Cathode Ray Tube), it has the advantages of miniaturization, light weight, thinness and low power consumption, but it is more expensive, but it has the advantages of miniaturization, light weight, thinness and low power consumption. It is attracting attention as a means.

In recent years, the size of the LCD module has been gradually increased to a size of 13.3 inches or more according to a user's request, and correspondingly, the case of a notebook computer for mounting the LCD module has also gradually increased.

Therefore, in order to satisfy the size of the LCD module and to satisfy the light and small size of the corresponding LCD module, each member constituting the LCD module or the LCD module to the case, for example, a backlight assembly, is satisfied. In the layout of connectors, printed circuit boards (PCBs), etc., there is a continuous research.

In particular, in the mounting structure for coupling the LCD module and the case, a coupling space region generated by coupling the LCD module and the case has become an important problem.

In general, the top mounting method has been used to mount the LCD module to the case. To this end, as shown in FIG. 1, a mounting part 2 having a screwing hole is formed in the top chassis 6 of the LCD module 4. Protruded at four corners, the screw through the screwing hole of the mounting portion 2 is coupled to the case 8 by the LCD module 4 is fixed to the case (8).

However, in the top mounting method, since mounting parts are formed at four corners of the top chassis of the LCD module, and screw coupling structures are applied to the mounting parts for screwing with the case, there are limitations in reducing the size of the mounting parts. The size of the case increases as much as the length of the mounting portion protrudes, thereby increasing the overall weight of the case.

In addition, there is a problem that the work efficiency for the assembly of the LCD module and the case is degraded due to the inconvenience caused by the screw coupling.

Accordingly, an object of the present invention is to minimize the size of the case by changing the combination of the LCD module and the case, and to improve the work efficiency for the assembly of the LCD module and the case.

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

1 is a plan view showing a liquid crystal display device in which the upper case according to the prior art is removed.

2 is an exploded perspective view showing a liquid crystal display device according to an embodiment of the present invention.

3 is an enlarged perspective view illustrating III of FIG. 2;

4 is a cross-sectional view showing the IV-IV of FIG.

5 is a perspective view showing a modification of the bracket according to the embodiment of the present invention.

6 is an exploded perspective view showing a liquid crystal display device according to another embodiment according to the technology of the present invention.

FIG. 7 is an enlarged perspective view illustrating a region of FIG. 6. FIG.

8 is a perspective view of the combination of FIG.

FIG. 9 is an enlarged perspective view illustrating a region of FIG. 6. FIG.

10 is a coupling state diagram showing the stopper coupling of FIG.

11 is a perspective view showing a modification of the stopper according to another embodiment according to the technique of the present invention.

In order to achieve the above object, the present invention forms a joining protrusion having a predetermined shape on the side of the LCD module, and installs a fixing member having a protrusion fixing groove for guiding and fixing the protrusion on the upper surface facing the protrusion. Be sure to fix the projection to the projection fixing groove.

At this time, the fixing member may be a bracket having a predetermined length in which one side end is hinged in the case, the protrusion fixing groove guides the protrusion in the height direction of the fixing member, one end is larger than the diameter of the protrusion and the other end is larger than the diameter of the protrusion It may be formed of a small guide portion and a seating portion extending to the other end of the guide portion to seat and fix the protrusion. In this case, the guide portion may have a 'V' shape.

In addition, a portion in which the protrusion fixing groove is formed may protrude in the height direction of the fixing member.

In another modification, the protrusion fixing groove may include a guide part inserted into the protrusion part and extending in the longitudinal direction of the fixing member, and a seating part in which the protrusion part is seated and fixed. The seating part may be bent from the guide part in the height direction of the fixing member.

An anti-separation member may be further installed in a predetermined region to prevent the LCD module from being separated from the protrusion fixing groove in a state where the protrusion is coupled to the protrusion fixing groove.

In this case, the release preventing member may be a stopper installed inside the case of the side surface of the LCD module corresponding to the separation direction of the LCD module. Alternatively, the release preventing member may be formed on the side of the bracket facing the locking projection and the locking projection of the predetermined shape formed on the side of the LCD module may be made of a locking groove that the locking projection is caught.

In addition, the pressing member extending a predetermined length in the outward direction along the outer circumferential surface of one end of the protrusion may press the one side of the fixing member, wherein the interval between the pressing member and the side of the LCD module corresponds to the width of the fixing member. It is desirable to be.

Hereinafter, a liquid crystal display according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the LCD includes an LCD module 10 that displays data largely and a case 12 that surrounds the LCD module 10 except for the data display area. Coupling protrusions 14 each having a predetermined shape on the side portion, for example, opposite side surfaces, are formed to be spaced apart from each other by a predetermined interval, and protrusions are formed in a predetermined area in the case 12 respectively facing the protrusions 14. A fixing member having a fixing groove 16 for guiding and fixing 14 is installed, for example, a bracket 18.

The LCD module 10 includes an LCD panel 20 for displaying data, a backlight assembly positioned at a rear surface of the LCD panel 20 to generate light, a mold frame for accommodating them, and an upper edge and a mold frame of the LCD panel 20. It includes a top chassis 22 fixed to the mold frame while wrapping the side of the.

The case 12 includes a lower case 24 surrounding the lower portion of the LCD module 10 and an upper case 26 surrounding the upper portion of the LCD module 10 except for the data display area and coupled to the lower case 24.

2 or 3, the protrusions 14 are formed to protrude a predetermined length on both sides of the top chassis 22, and at this time, the shape of the protrusions 14 is cylindrical. Of course, the shape of the protrusions 14 can be deformed into various shapes in addition to the cylindrical shape.

Brackets 18 having a predetermined length to be used as a fixing member are opposed to each other in the longitudinal direction of the lower case in a state that one end is hinged to the lower portion in the lower case 24 so that the embodiment of the present invention can be preferably implemented It is installed along the inner surface, respectively, and the projection fixing groove 16 for fixing the projection 14 is formed on the upper surface of the bracket 18 facing the projection 14.

Of course, the installation of the bracket 18 on the lower case 24 may be modified in various forms, and the bracket 18 may be installed on the upper case 26 as well as the lower case 24.

At this time, the protrusion fixing groove 16 has a 'V' shape for guiding the protrusion 16 in the height direction of the bracket 18 for smooth insertion of the protrusion 14, one end of which is larger than the diameter of the protrusion 14. The other end includes a guide portion 28 smaller than the diameter of the protrusion 14 and a seating portion 32 extending to the other end of the guide portion 28 to seat and fix the protrusion 14.

The other end of the guide portion 28 is spaced apart by a predetermined pressure applied to the protrusion 14, and then restored by its own elastic force, and thus the protrusions seated on the seating portion 32 through the guide portion 28 14 is prevented from being separated through the other end of the guide portion 28.

Conventionally, the LCD module is stored in the lower case and then screwed to the lower case through a mounting portion protruding from the side of the LCD module to fix the LCD module to the lower case, thereby reducing work efficiency due to work inconvenience caused by screwing. In the present invention, the protrusion 14 of the LCD module 10 is coupled to the protrusion fixing groove 16 of the bracket 18 to couple the LCD module 10 to the lower case 24, rather than the conventional screw fastening. Work is simplified and work efficiency is improved.

In addition, in the related art, since the mounting portion formed on the side of the LCD module has a planar length of at least 7 to 10 mm due to screwing characteristics, the size of the case also increases to correspond to the planar length of the mounting portion. It is possible to combine the protrusions 14 of the LCD module 10 with the protrusion fixing groove 16 of the bracket 18 installed in the lower case 24 in a state of about 3mm in length of the protrusion 14 installed on the side. Therefore, the size of the case 12 is reduced by that amount. Of course, the protruding length of the protruding portion 14 may be shorter than the length of the protruding portion 14 mentioned above according to the technological development.

In addition, one side end of the protrusion 14 may further include a pressing member 34 on the outer circumferential surface so as to extend a predetermined length in the outward direction so as to be orthogonal to the axis of the protrusion 14 to press one side of the bracket 18. As illustrated in FIG. 4, the bracket 18 is interposed between the side of the pressing member 34 and the top chassis 22 so as to be in contact with the pressing member 34 and the top chassis 22. It is possible to improve the fixing force of the LCD module 10 with respect to).

To this end, the distance between the top chassis 22 and the pressing member 34 preferably corresponds to the width of the bracket 18.

Looking at the modification of the bracket according to another embodiment of the present invention with reference to FIG.

As shown in the drawing, a predetermined region in which the protrusion fixing groove 36 is formed may protrude a predetermined height than a peripheral region in which the protrusion fixing groove 36 is not formed, and thus the modified bracket 38 may be applied.

Of course, this modified bracket 38 also has the same action and effect as mentioned in the above embodiment.

A liquid crystal display according to another exemplary embodiment of the present invention will be described in detail with reference to FIG. 6 as follows. Detailed description of the same parts as those mentioned in the above embodiment will be omitted.

As shown in the lower case 40, the bracket 44 for fixing the protrusions 42 is mutually in the longitudinal direction of the lower case 40 with one end hinged to the lower portion of the lower case 40. Protruding portion fixing grooves 48 are installed along the inner surface of the opposite side, and the protrusions 42 guide and fix the protrusions 42 on the upper surface of the bracket 44 facing the protrusions 42 formed on the side of the LCD module 46. ) Is formed.

As shown in FIG. 7 or FIG. 8, the protrusion fixing groove 48 is extended to the guide portion 52 and the guide portion 52 which receive the protrusion 42 and guide the predetermined length in the longitudinal direction of the bracket 44. It consists of a seating portion 54 on which the protrusion 42 is seated.

At this time, the mounting portion 54 is bent from the guide portion 52 in the height direction of the bracket 44, the fixing of the protrusions 42 is made more secure.

On the other hand, after the protrusion 42 is coupled to the protrusion fixing groove 48, the separation preventing member to prevent the protrusion 42 of the LCD module 46 from being separated from the protrusion fixing groove 48 from vibration and external shock, For example, as illustrated in FIGS. 6 to 9, the LCD module 46 corresponds to a direction in which the LCD module 46 is separated from the protrusion fixing groove 48 along the guide portion 52 of the protrusion fixing groove 48. A rectangular stopper 56 is further provided in the lower case 40 on the side outside of the 46.

At this time, the stopper 56 is fitted to the stopper engaging groove 58 formed in the inner edge portion of the lower case 40 facing each other.

Here, looking at the assembly process of the LCD module and the lower case, the one end of the guide portion 52 of the protrusions 42 of the LCD module 46 and the protrusion fixing groove 48 of the bracket 44 is aligned and then The 42 is accommodated in the guide part 52.

Then, the protrusion 42 is guided along the guide portion 52 as shown in FIG. 8 and finally fixed to the seating portion 52 extending to the guide portion 52.

Subsequently, as illustrated in FIG. 10, the protrusion 42 of the LCD module 46 protrudes due to vibration and external shock by forcing the stopper 56 to fit into the stopper coupling groove 58 of the lower case 40. It prevents from escaping from the fixing groove 48.

The effect thereby is the same as that mentioned in the above embodiment.

11 illustrates a modification of the separation preventing member, and as shown, the separation preventing member has a bracket facing the locking protrusion 64 and the locking protrusion 64 having a predetermined shape formed on the side of the LCD module 62. It is formed on the side of the 66 is made of a locking groove 68, the locking projection 64 is caught.

Here, looking at the engaging process of the locking projection and the locking groove, the projection 70 of the LCD module 62 is seated on the seating portion 74 of the projection fixing groove 72 and at the same time the locking projection 64 is the locking groove 68 Is fixed to hanging.

To this end, the distance between the locking projection 64 and the protrusion 70 and the distance between the locking groove 68 and the seating portion 74 should be the same.

The effect thereby is the same as that mentioned in the above embodiment.

The combination of the LCD module and the case applied in the liquid crystal display device of the present invention, for example, a notebook computer, a desktop computer, a TV, an electronic calculator, etc., can generally expect the same effect as mentioned above.

As described above, the present invention provides protrusions on both sides of the LCD module, and installs a fixing member having protrusion fixing grooves for fixing the protrusions in a predetermined region in the case, and then combines the protrusions with the protrusion fixing grooves in one direction. The area of the case can be minimized by reducing the coupling area between the module and the case.

In addition, the inconvenience caused by the conventional coupling of the LCD module and the case through the screw coupling is removed, there is an effect that the work efficiency is improved.

Claims (10)

An LCD module for displaying information and a case covering the LCD module from an upper side and a lower side, respectively; The LCD module is provided with a coupling protrusion having a predetermined shape on the side, In the region facing the protrusion of the case, the protrusion is guided in the height direction of the fixing member, one end of which is larger than the diameter of the protrusion and the other end of which is smaller than the diameter of the protrusion, and extends to the other end of the guide. And a fixing member having a protrusion fixing groove formed of a seating portion for seating and fixing the protrusion. The liquid crystal display device according to claim 1, wherein the fixing member is a bracket having a predetermined length in which one side end is hinged in the case. The liquid crystal display device according to claim 1 or 2, wherein the guide part has a 'V' shape. The liquid crystal display device according to claim 1 or 2, wherein the portion in which the protrusion fixing groove is formed protrudes in the height direction of the fixing member. An LCD module for displaying information and a case covering the LCD module from an upper side and a lower side, respectively; The LCD module is provided with a coupling protrusion having a predetermined shape on the side, A fixing member having a projection fixing groove including a guide portion inserted into the protrusion and guided in the longitudinal direction of the fixing member and a seating portion extending from the guide portion to a seating portion on which the protrusion is mounted is provided in an area facing the protrusion of the case. , And a release preventing member for preventing the LCD module from being separated from the protrusion fixing groove in a state where the protrusion is coupled to the protrusion fixing groove in a predetermined region of the case. 6. The liquid crystal display device according to claim 5, wherein the seating portion is bent from a guide portion in a height direction of the fixing member. 7. The liquid crystal display device according to claim 5 or 6, wherein the detachment preventing member is a stopper provided inside the case outside the side surface of the LCD module corresponding to the detachment direction of the LCD module. The method of claim 5 or 6, wherein the separation preventing member is formed on the side of the bracket facing the locking projection and a predetermined shape formed on the side of the LCD module and the locking groove is characterized in that the locking projection is caught. A liquid crystal display device. The liquid crystal display device according to claim 1, wherein the pressing member which extends a predetermined length in the outward direction along the outer circumferential surface of the one end of the protruding portion presses one side of the fixing member. 10. The liquid crystal display of claim 9, wherein an interval between the pressing member and a side surface of the LCD module corresponds to a width of the fixing member.