KR20010063793A - Liquid crystal display module for monitor apparatus - Google Patents

Abstract

PURPOSE: A liquid crystal display module for a monitor device is provided to improve the assembling efficiency of the liquid crystal display module without using a separate grounding member. CONSTITUTION: A liquid crystal display module for a monitor device comprises a rectangular mold frame(20) having the first receiving space defined by the first sidewall(21). A bottom chassis(30) is received in the first receiving space of the mold frame(20). The bottom chassis(30) has the second receiving space defined by the second sidewall(32). A lamp(1), a light guiding plate(2) and sheets(3) are received in the second receiving space. A liquid crystal panel assembly(10) is positioned on an upper portion of the bottom chassis(30). The liquid crystal panel assembly(30) includes an upper panel(12), a lower panel(11) coupled to the upper panel(12), a gate printed circuit board(14) connected to one side of the lower panel(11), and a source printed circuit board(17) connected to the other side of the lower panel(11). A top chassis(50) is coupled to the mold frame(30). A plurality of grounding plates(33) are formed in the bottom chassis(30).

Description

Liquid crystal display module for monitor apparatus

The present invention relates to, for example, a liquid crystal display module for a monitor device for displaying information output from an information processing device such as a computer to the outside, and more particularly, without a separate grounding member, so as to achieve a smooth electromagnetic emission structure By placing a ground plate, a communication plate, an elastic body, and the like on the part, the device can implement a stable electromagnetic wave emission path by itself, thereby improving the assembly efficiency, increasing the product yield, and reducing the cost. The present invention relates to a liquid crystal display module for a monitor device that can provide an advantage.

Recently, information processing apparatuses, such as computers, which process various data quickly according to the development of the information industry, are also rapidly developing, and in accordance with the development of such information processing apparatuses, information output from the information processing apparatuses is externally displayed. Monitor devices that display as a user are also developing rapidly.

Such a monitor device is largely a "CRT-equipped monitor device" that applies the characteristics of a cathode ray tube (CRT) and a "liquid crystal display module" that applies the physical and optical characteristics of a liquid crystal (LC). Monitor device ". Among these, in particular, the" monitor device equipped with a liquid crystal display module "can easily achieve miniaturization, light weight, low power consumption, etc., compared to the" monitor equipped with a CRT. " For example, the area of use is increasing.

Specific examples of such conventional " liquid crystal display module-equipped monitor device " are described in, for example, US Patent No. 5502582 "Light sourse cooler for LCD monitor", US Patent No. 5791770 "Liquid crystal monitor" Light sourse cooler for LCD monitor, US Pat. No. 5825614, "Compact personal computer with LCD monitor", and the like.

In general, the above-described conventional " liquid crystal display module-equipped monitor device " generally includes a liquid crystal display module and a combination of a rear bezel and a front bezel for mounting the liquid crystal display module. In this case, the liquid crystal display module is a mold frame. And a bottom chassis housed in the mold frame, a lamp housed in the bottom chassis, a light guide plate, sheets, a liquid crystal panel stacked on the side of the lamp, and a tower that collectively encloses the above-described structures. It consists of a combination of chassis and the like.

At this time, a printed circuit board having a plurality of circuit patterns is mounted on the side of the liquid crystal panel. The printed circuit board is driven by a control signal input from the outside, and outputs a series of image information to the liquid crystal panel, Control the overall display state.

In general, the above-described printed circuit board controls the device using high frequency signals. As a result, a large amount of electromagnetic waves are inevitably generated in the printed circuit board, and the generated electromagnetic waves interfere with the normal operation of the device. It acts as a cause of significantly lowering the quality of the image displayed to the outside.

In the conventional production line, in consideration of such an electromagnetic wave generation problem, a separate grounding member such as a clip or an Al tape is disposed on a part of the liquid crystal display module, and the grounding member is brought into contact with the top chassis, for example, to remove the printed circuit board. The output electromagnetic waves can be quickly emitted to the outside.

However, in the case of using a separate grounding member to emit electromagnetic waves output from the printed circuit board to the outside, inevitably, in the conventional production line, this grounding member must be separately assembled to a part of the device. There is no choice but to accept. In this case, the overall assembly efficiency of the liquid crystal display device is greatly reduced, thereby causing a problem that the output of the final product is greatly reduced.

In addition, in the case of using a separate grounding member such as the clip, Al tape, etc., a problem arises in that the cost increases by the price of the separate grounding member.

Accordingly, an object of the present invention is to significantly improve the overall assembly efficiency of the liquid crystal display device by allowing smooth electromagnetic wave emission to be achieved without using a separate grounding member such as the above-described clip or Al tape.

Another object of the present invention is to eliminate the use of a separate grounding member, to improve the assembly efficiency, thereby inducing an increase in the production of the product.

Still another object of the present invention is to eliminate the cost increase factor of the product by eliminating the use of a separate grounding member.

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

1 is an exemplary view showing a monitor device employing the present invention.

2 is an exemplary view showing a liquid crystal display module for a monitor device according to the present invention.

3 is an enlarged view illustrating main parts of FIG. 2.

4 is an exemplary view showing a liquid crystal display module for a monitor device according to another embodiment of the present invention.

In order to achieve the above object, in the present invention, for example, a plurality of ground plates protruding outward sidewalls are formed on a portion of the bottom chassis. In this case, when the bottom chassis is accommodated in the storage space of the mold frame, and the top chassis is overlapped and combined while surrounding the sidewalls of the mold frame, the ground plates are electrically connected to the edges of the top chassis in the state of being overlapped. Form a structure in contact with

In addition, in another embodiment of the present invention, a plurality of ground plates protruding outwardly of the sidewalls are formed on a portion of the bottom chassis, and correspond to the aforementioned ground planes on a portion of the fixed frame, and protrude outwardly of the rim. In the state to form a communication plate having a through-hole at a predetermined portion. In this case, an elastic body having a certain size of elasticity is erected and coupled to the through holes of the communication plates. In this case, each ground plate has a structure in which the bottom chassis is in electrical contact with the edge of the top chassis in the state of interposing the above-mentioned elastic body when the top chassis is stacked and coupled to the mold frame while the bottom chassis is stored in the storage space of the mold frame. Achieve.

In the case of the present invention, since the ground plates of the bottom chassis may be in electrical contact with the printed circuit board of the liquid crystal panel assembly, the electromagnetic waves generated from the printed circuit board may be “printed”. It can be quickly discharged to the outside via the path of “circuit board-ground plate-top chassis”, and finally, the production line can achieve smooth electromagnetic emission without using a separate grounding member such as a clip or Al tape. Will be.

When the present invention is achieved, since the use of a separate grounding member can be completely excluded, the production line can obtain advantages such as "improved assembly efficiency", "increased product yield", "cost reduction" and the like.

Hereinafter, a liquid crystal display module for a monitor device according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the monitor device 400 having a liquid crystal display module according to the present invention is electrically connected to an information processing device (not shown), for example, a main body of a desktop computer, through a connection line 301. In addition, it forms a structure electrically connected to the input device, for example, the keyboard 300. Of course, this keyboard 300 also has an electrical connection with the information processing apparatus.

At this time, the cover case 200 of the monitor device 400 is coupled to the rear bezel 202 having a rectangular ring-shaped storage space and the rear bezel 202 facing each other, the screen A on the front It consists of a combination of front bezels 201 defined. The cover case 200 forms a structure supported by the backing plate 203.

In general, an information processing assembly capable of quickly processing a signal input from the outside is generally built into the main body of the information processing device electrically connected to the monitor device 400. In this case, the user operates the keyboard 300 When certain information is input into the main body, the information processing assembly quickly calculates the input information and then outputs the processed information to the monitor device 400 disposed outside the main body.

At this time, between the rear bezel 202 and the front bezel 201 of the cover case 200, an image display module unique to the present invention, such as a liquid crystal display module, which directly displays the information processing result of the above-described information processing assembly to the outside. 100 is stored in a state in which its liquid crystal panel is exposed to the outside of the screen A of the front bezel 201.

As shown in FIG. 2, in the liquid crystal display module 100 according to the present invention, the mold frame 20 is formed of a predetermined size defined by the first sidewall 21 in a rectangular ring shape. 1 storage space is provided.

In this case, the bottom chassis 30 may store, for example, the light guide plate 2 and the sheets 3 on the bottom surface 31 of the bottom chassis 31 in a state of being stored in the first storage space of the mold frame 20. It has a rectangular ring shape so that the second receiving area is defined. In this case, the second receiving region is defined by, for example, the second side wall 32.

Here, the lamp 1 having a light irradiation function is housed in a state surrounded by a lamp cover (not shown), for example, at the longitudinal edge of the second storage area. The lamp 1 is connected to the connector (not shown) by a wire, and this connector supplies the lamp 1 with electric energy of a suitable voltage, thereby inducing the lamp 1 to emit light at a constant brightness. Do this.

Here, the light guide plate 2 disposed on the side of the lamp 1 serves to convert the light of the line light source output from the lamp 1 into the light of the surface light source.

On the other hand, a rear reflector (not shown) is disposed on the rear surface of the light guide plate 1 to block the light incident from the lamp and reflect the light back toward the light guide plate. ) Is laminated.

At this time, the fixing frame 40 is disposed on the upper part of the sheets 3, the fixing frame 40 is opened in a predetermined size so that the front of the sheets (3) is exposed, to its own border By pressing the edges of the lamp 1, the light guide plate 2, and the like toward the bottom chassis 30, the lamp 1, the light guide plate 2, and the like can be stably fixed to the second storage space of the bottom chassis 30. It plays the role of making it work.

Here, as shown in the figure, the liquid crystal panel assembly 10 which substantially displays image information input from the outside is interposed on the sheets 3.

In this case, as shown in the figure, the liquid crystal panel assembly 10 includes a liquid crystal panel 13 and a signal connection member 15 for a gate having a series of electrical connection relations with the liquid crystal panel 13 and a signal for a date. And a connection member 16, a gate printed circuit board 14, a data printed circuit board 17, and the like.

Here, the liquid crystal panel 13 is, for example, a lower panel 11 including a "gate line, a data line, a thin film transistor, a pixel electrode", and the like, and, for example, in a state of being kept smaller than the lower panel 11. The upper panel 12 is stacked to face the lower panel 11 and includes, for example, a combination of the upper panel 12 including "black matrix, color pixel, common electrode," and the like. In this case, a liquid crystal (not shown) is interposed between the upper panel 12 and the lower panel 11.

At this time, as shown in the figure, the gate signal connecting member 15 has a structure overlapping with the gate lines formed on the lower panel 11, the data signal connecting member 16 to the lower panel 11 The structure overlaps with the formed data lines.

Here, the above-described gate printed circuit board 14 serves to input a series of gate driving signals to the gate signal connecting member 15 in a state where a plurality of gate driving components are mounted, and prints for data. The circuit board 17 serves to input a series of data driving signals to the data signal connecting member 16 in a state where a plurality of data driving components are mounted. Of course, these printed circuit boards 14 and 17 are electrically connected to the bottom chassis 30 through their ground patterns (not shown) as soon as the liquid crystal panel assembly 10 is accommodated in the bottom chassis 30. Contact.

On the other hand, the top chassis 50 coupled to the upper portion of the above-described mold frame 20 has a rectangular ring shape with a window formed on its front surface, for example, made of a material such as stainless steel. In this case, the size of the window is formed to correspond to the effective display area of the liquid crystal panel assembly 10. In addition, the top chassis 50 extends by a certain height from the top, bottom, left and right edges so that the bottom surface has a certain depth, in this case, the height of the edge should be large enough to wrap the mold frame 20 described above. do.

3, for example, a plurality of ground plates 33 protruding outward of the second sidewall 32 are formed in the bottom chassis 30. In this case, each of the ground plates 33 is, for example, the upper plate 33a perpendicular to the second sidewall 32 of the bottom chassis 30, and the primary plates 33 are first bent in a state perpendicular to the upper plate 33a. , A combination of the side plates 33b parallel to the second side walls 32 mentioned above.

For convenience, the liquid crystal panel assembly 10 is omitted in FIG. 3.

In this case, when the bottom chassis 30 is accommodated in the first storage space of the mold frame 20, the top plate 33a of the ground plate 33 is mounted on the first sidewall 21 of the mold frame 20. Since the side plate 33b of the ground plate 33 forms a structure extending downward in contact with the first side wall 21 of the mold frame 20, the bottom chassis 30 is formed in the mold frame 20. When the storage is completed in the first storage space of), the ground plate 33 eventually forms a structure spanning the first sidewall 21 of the mold frame 20.

In this state, when the top chassis 50 is overlapped and joined while surrounding the first sidewall 21 of the mold frame 20, a part of the ground plate 33, for example, a side plate of the ground plate 33 is formed. 33b) has a structure in which the edge of the top chassis 50, for example, the edge inner wall 51 is in electrical contact with the first sidewall 21 of the mold frame 21.

In this case, as described above, since the printed circuit boards 14 and 17 of the liquid crystal panel assembly 10 are in electrical contact with the bottom chassis 30, the ground plates 33 of the present invention may have the top chassis 50. When in electrical contact with the inner wall 51 of the rim, the electromagnetic waves generated from the printed circuit boards 14 and 17 pass through the path of the “printed circuit board-ground plate-top chassis,” and eventually, to the outside quickly. In this case, in the production line, it is possible to achieve a smooth electromagnetic emission without using a separate grounding member such as a clip, Al tape.

When the present invention is achieved, since the use of a separate grounding member can be completely excluded, the production line can obtain advantages such as "improved assembly efficiency", "increased product yield", "cost reduction" and the like.

On the other hand, as shown in Figure 4, according to another embodiment of the present invention, a plurality of through-holes 42 are formed on the edge of the above-mentioned fixing frame 40, the through-holes 42 An elastic body 43 having an elastic force of size, for example, an elastic spring, is erected and engaged. In this case, the through holes 42 have a structure corresponding to, for example, the ground plates 33 mentioned above.

In this state, the bottom chassis 30 described above is accommodated in the first storage space of the mold frame 20, and the top chassis 50 surrounds the first sidewall 21 of the mold frame 20, and overlaps with each other. When combined, a part of the ground plate 33, for example, the top plate 33a of the ground plate 33, is part of the edge of the top chassis 50, for example, the edge of the top chassis 50 with the above-mentioned elastic body 43 interposed therebetween. A structure is in electrical contact with the face 52.

At this time, as described above, since the side plate 33b of the ground plate 33 forms a structure extending downward in contact with the first side wall 21 of the mold frame 20, the bottom chassis 30 is When the top chassis 50 is accommodated in the first accommodating space of the mold frame 20, and the top chassis 50 surrounds the first side wall 21 of the mold frame 20 and is overlapped and coupled, the side plate of the ground plate 33 Similar to the top plate 33a of the ground plate 33, 33b has a structure in electrical contact with a portion of the edge of the top chassis 50, for example, the edge inner wall 51.

Even when this embodiment of the present invention is applied, since the printed circuit boards 14 and 17 of the liquid crystal panel assembly 10 are in electrical contact with the bottom chassis 30 using their ground patterns, According to another embodiment of the present invention, when the ground plates 33 are in electrical contact with the edge of the top chassis 50, the electromagnetic waves generated from the printed circuit boards 14 and 17 may be "printed circuit board-ground." It can be quickly discharged to the outside via the path of the "top-top chassis", and finally, in the production line, it is possible to achieve smooth electromagnetic emission without using a separate grounding member such as a clip or Al tape.

As described above, in another embodiment of the present invention, since the top plate 33a as well as the side plate 33b of the ground plate is brought into electrical contact with the edge of the top chassis 50, according to another embodiment of the present invention, When the example is applied, the production line can obtain the effect that the emission of electromagnetic waves is more smoothly achieved than in the above-described embodiment.

Of course, even in this embodiment of the present invention, since the use of a separate grounding member can be completely eliminated in the production line, it is possible to obtain advantages such as "improved assembly efficiency", "increased product yield", and "cost reduction". Can be.

Thereafter, the assembled liquid crystal display module 100 is accommodated between the rear bezel 202 and the front bezel 201 as described above, thereby completing the manufacture of a monitor device having excellent functions.

As described above, in the present invention, a ground plate, a communication plate, an elastic body, etc. are disposed on a part of the device so that a smooth electromagnetic wave emission structure can be achieved without a separate grounding member, and through this, the device emits electromagnetic waves that are stable in itself. By enabling a route, it is possible to provide advantages such as "assembly efficiency", "product yield" and "cost reduction".

The present invention is not limited to the above-described liquid crystal display module for monitors, and has a general useful effect on other kinds of liquid crystal display modules, for example, liquid crystal display modules for notebook computers.

And while certain embodiments of the invention have been described and illustrated, it will be apparent that the invention may be embodied in various modifications by those skilled in the art.

Such modified embodiments should not be understood individually from the technical spirit or point of view of the present invention and such modified embodiments should fall within the scope of the appended claims of the present invention.

As described in detail above, in the liquid crystal display module for a monitor device according to the present invention, for example, a plurality of ground plates protruding outward sidewalls are formed on a portion of the bottom chassis. In this case, when the bottom chassis is accommodated in the storage space of the mold frame, and the top chassis is overlapped and combined while surrounding the sidewalls of the mold frame, the ground plates are electrically connected to the edges of the top chassis in the state of being overlapped. Form a structure in contact with

In addition, in another embodiment of the present invention, a plurality of ground plates protruding outward of the sidewalls are formed on a portion of the bottom chassis, and through holes corresponding to the ground plates mentioned above are formed on a portion of the fixed frame. In this case, an elastic body having a certain size of elasticity is erected and coupled to the through holes. In this case, each ground plate has a structure in which the bottom chassis is in electrical contact with the edge of the top chassis in the state of interposing the above-mentioned elastic body when the top chassis is stacked and coupled to the mold frame while the bottom chassis is stored in the storage space of the mold frame. Achieve.

In the case of the present invention, since the ground plates of the bottom chassis may be in electrical contact with the printed circuit board of the liquid crystal panel assembly, the electromagnetic waves generated from the printed circuit board may be “printed”. It can be quickly discharged to the outside via the path of “circuit board-ground plate-top chassis”, and finally, the production line can achieve smooth electromagnetic emission without using a separate grounding member such as a clip or Al tape. Will be.

Claims (4)

A rectangular ring-shaped mold frame having a first storage space having a predetermined size defined by the first side wall; A bottom chassis which is accommodated in a first storage space of the mold frame, has a second storage space having a predetermined size defined by a second sidewall, and houses lamps, light guide plates, and sheets in the second storage space; A source panel disposed on the bottom chassis and having an upper panel, a lower panel coupled to the upper panel via liquid crystal, a gate printed circuit board electrically connected to one side of the lower panel, and a source electrically connected to the other side of the lower panel; A liquid crystal panel assembly made of a printed circuit board; A rectangular ring shape defined by an edge is formed, the front surface of which is opened to correspond to the effective display area of the liquid crystal panel assembly, and overlaps the first sidewall of the mold frame while facing the mold frame. Includes a top chassis, The bottom chassis includes a plurality of ground plates protruding outward from the second side wall, wherein the ground plates are accommodated in the first storage space of the mold frame, and the top chassis is formed of the first frame of the mold frame. 1 is a liquid crystal display module for a monitor device, characterized in that the electrical contact with the rim of the top chassis in a state spanning the first side wall of the mold frame, when overlapping and covering the side wall. The semiconductor device of claim 1, wherein the ground plates comprise: an upper plate perpendicular to the second sidewall of the bottom chassis; And a side plate which is first bent in a state perpendicular to the upper plate and formed to be parallel to the second side wall. A rectangular ring-shaped mold frame having a first storage space having a predetermined size defined by the first side wall; A bottom chassis which is accommodated in a first storage space of the mold frame, has a second storage space having a predetermined size defined by a second sidewall, and houses lamps, light guide plates, and sheets in the second storage space; A source panel disposed on the bottom chassis and having an upper panel, a lower panel coupled to the upper panel via liquid crystal, a gate printed circuit board electrically connected to one side of the lower panel, and a source electrically connected to the other side of the lower panel; A liquid crystal panel assembly made of a printed circuit board; A rectangular ring shape defined by an edge is formed, the front surface of which is opened to correspond to the effective display area of the liquid crystal panel assembly, and overlaps the first sidewall of the mold frame while facing the mold frame. Includes a top chassis, The bottom chassis includes a plurality of ground plates protruding outward from the second side wall, and the ground plates are formed in the first chassis of the mold frame while the bottom chassis is accommodated in the first accommodating space of the mold frame. When overlapped and coupled, electrical contact with a part of the edge of the top chassis in a state spanning the first sidewall of the mold frame, and electrical contact with another part of the edge of the top chassis with a predetermined elastic body interposed therebetween. Liquid crystal display module for a monitor device, characterized in that. 4. The liquid crystal display module according to claim 3, wherein the elastic body is a spring.