GB2420904A

GB2420904A - Aluminium extrusion external framework of LCD monitor

Info

Publication number: GB2420904A
Application number: GB0426616A
Authority: GB
Inventors: Ching-Lung Peng
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-03
Filing date: 2004-12-03
Publication date: 2006-06-07
Also published as: GB0426616D0

Abstract

An aluminum extrusion external framework of an LCD monitor primarily comprises a front frame cap (1), a back frame cap (2), a sheathing (3) and several movable laminas (4) mounted on the inside of the back frame cap (2), the locking positions of the laminas (4) being adjustable. Receiving trenches (222) for receiving movable orientation blocks for fixing electronic components are formed on the inner edges of the backsides of the long and short rims (21,22) of the back frame cap (2). Furthermore, the movable laminas (4) cooperate with two outstanding slideways (221), which are mounted inside the back frame cap (2), so as to be universally suitable for an existing LCD panel that has various specifications and dimensions for facilitating marketing and promoting competitiveness.

Description

ALUMINUM EXTRUSION EXTERNAL FRAMEWORK OF

LCD MONITOR

The present invention relates to an external framework of a liquid crystal display (LCD) monitor, and more particularly to an external framework, which is universally suitable for the existing LCD panels with various specifications and dimensions, and which conforms to the recycle- based environmental protection.

The existing external frameworks for the LCD monitors are formed by use of resin injection molding method directly. Although it provides with lower manufacture cost, the recycling process of the injection-molded rein creates toxic chemical materials. Moreover, it cannot be decomposed effectively after being buried directly. It does not conform to the recycle- based environmental protection and derives a lots of environmental protection issues in the future. Accordingly, over the following years, the use of the plastic products will be prohibited on the basis of these environmental protection issues. Those are the problems that this industry faces and needs to solve.

Moreover, for this external framework of the LCD monitor, which is made of resin, a metal partition is usually mounted in the framework to isolate the electromagnetic wave in order to conform to the anti-EMI (Electromagnetic Interference) requirement. However this metal partition is composed of iron sheet, which increases the integral weight of the resin external framework, and the resin external framework also increases its weight. Every manufacture pertains to this industry tries his best to lighten the integral weight of the computer-related apparatuses and conform to the environmental protection requirement for promoting the competitiveness of these products.

I

For the existing external frameworks for the LCD monitors, they are made of aluminum by use of casting method or aluminum extrusion method.

Because of its high mold cost, the casting method results in larger manufacture cost. It cannot form the flange that vertically isolates the electromagnetic wave by one molding method. This vertically molded flange will affect the release of the object from the mold. Therefore, the casting method is inapplicable. In the current stage, only the aluminum extrusion method with lower mold cost conforms to economic benefit of manufacture.

Moreover, the LCD panels are locked on the inside of the existing external frameworks for the monitors by use of studding operation. Since the locking positions of the LCD panels manufactured by various manufactures are not unified, the studding operation must adopt various complicated processes. Therefore, a specific external framework is only suitable for a specific manufacture. It does not achieve the purpose of universal use. The current technological choke point of this industry is in that it does not accomplish the purpose of universal use and not facilitate marketing and competitiveness.

In view of the need of providing the external framework of the LCD monitor, the present inventor has been made diligent studies with a quiet mind to design and invent an aluminum extrusion external framework of a LCD monitor for industrial use.

The main object of the present invention is to provide an aluminum extrusion external framework of a LCD monitor. The external framework is made of aluminum for lightening its weight and conforms to the recyclebased environmental protection. Moreover, the manufacture cost is decreased to provide with more economic benefits.

Another purpose of the present invention is to provide an aluminum extrusion external framework of a LCD monitor, in which several movable laminas capable of sliding and adjusting their locking positions are mounted on the inside of the back frame cap to universally suitable for the existing LCD panel that has various specifications and dimensions for facilitating marketing and promoting competitiveness.

The still another purpose of the present invention is to provide an aluminum extrusion external framework of a LCD monitor, in which electronic components (PCB and POWER) with various specifications are embedded in the external framework, wherein receiving trenches for receiving the movable orientation blocks are formed on the inner edges of the backsides of the long and short rims of the back frame cap. The movable orientation blocks are embedded slantwise in the receiving trenches (or they are mounted through gaps formed on the long and short rims). They are adjusted to proper positions in the receiving trenches for fixing the electronic components.

The invention will now be further described, by way of example, with reference to the drawings in which: Fig. I is a schematic view showing the elevational appearance of the assemblage of the present invention; Fig. 2 is a schematic view showing the elevational appearance of the external framework bases of the present invention; FIG 3 is a schematic, exploded view showing the related components of the front frame cap of the present invention; Fig. 4 is a schematic view, which shows that the movable laminas are assembled to the back frame cap to suitable for a small dimension LCD panel in accordance with the present invention; Fig. 5 is a schematic view showing the assemblage of the small dimension LCD panel on the back frame cap in accordance with the preferred embodiment of the present invention; Fig. 6 is a schematic view, which shows that the movable laminas are assembled to the back frame cap to suitable for a large dimension LCD panel in accordance with the present invention; Fig. 7 is a schematic view showing the assemblage of the large dimension LCD panel on the back frame cap in accordance with the preferred embodiment of the present invention; FIG. 8 is a schematic view showing the relationship between the speaker nets and the speaker frames mounted on both sides of the external framework in accordance with the present invention; FIG. 9 is a schematic view showing the operation of assembling the speaker nets to the speaker frames in accordance with the present invention; FIG. 10 is a partial cross-sectional rear view showing the front frame cap of the present invention; FIG. 11 is a partial cross- sectional view showing the receiving trenches formed on the front frame cap for receiving the movable orientation blocks in accordance with the preferred embodiment of the present invention; FIG 12 is a schematic, planar view showing the status of embedding the movable orientation blocks in the receiving trenches in accordance with the present invention; FIG 13 is a schematic, planar view, which shows that the movable orientation blocks are fixed in the receiving trenches in accordance with the present invention; and FIG 14 is a schematic view showing the elevational appearance of fixing the PCB on the receiving trenched, which are formed on the backside of the front frame cap, in accordance with the present invention.

FIG 1 and FIG. 2 illustrate an aluminum extrusion external framework of a LCD monitor of the present invention, which primarily comprises an aluminum extrusion front frame cap 1, an aluminum extrusion back frame cap 2, and an aluminum extrusion sheathing 3 assembled with one another, and several movable laminas 4 mounted on the inside of the back frame cap 2, wherein the locking positions of the movable laminas 4 are adjustable. Besides, the external framework further comprises two bases 6 mounted on the bottom of the external framework, as shown in FIG 2, for the purpose of positioning so as to enable the external framework to be hung on the wall or mounted endways.

As shown in FIG. 2 and FIG. 3, the front frame cap 1 is composed of two aluminum extrusion long rims 11 and two aluminum extrusion short rims 12 welded and matched with one another in pairs. Accordingly, these two long rims 11 and two short rims 12 are provided with convenience and rapidity in assemblage. Because of the welding traces caused by the welding operation, a surface treatment such as spray painting treatment may be performed on the front frame cap 1 to provide its outward appearance with aesthetic and novel appearance.

As shown in FIG 3, the back frame cap 2 is composed of two aluminum extrusion long rims 21 and two aluminum extrusion short rims 22 welded and matched with one another, in which the corresponding ends thereof are cut in 45 degrees to form bevel edges that match with one another in pairs. Besides, each short rim 22 is molded to comprise a plate-receiving trench 222 formed on the butt surface thereof, wherein each plate- receiving trench 222 is composed of two outstanding slideways 221 to enable the mobile laminas 4 to slide within the plate-receiving trenches 222. Moreover, orientation holes 223 are formed on the outstanding slideways 221.

Several stud holes 41 for studs are formed on the mobile laminas 4 by predrilling the vertical surfaces of the mobile laminas 4 in unequal distances.

Several screw holes 42 (or brace holes) are formed by drilling the mobile laminas 4 in positions corresponding to the outstanding slideways 221. A hexagonal stud 43 (or a brace) is fixed on the stud hole 41 in a position corresponding to the locking ear 51 mounted on the LCD panel 5 so as to screw a screw onto the locking ear 51 for fixing and assembling the LCD panel 5 on the back frame cap 2.

Moreover, the stud holes 41 and the screw holes 42 formed on the movable laminas 4 described above have corresponding positions and numbers by predrilling the movable laminas 4 in accordance with the LCD panel 5 provided by various manufactures. In other words, the corresponding positions and numbers of the stud holes 41 and the screw holes 42 can be adjusted in accordance with the specification and dimension changes of the existing LCD panel 5. The corresponding positions and numbers of the stud holes 41 exposed from the movable laminas 4, which are embedded in the plate-receiving trenches 222 mounted on the right and left inner sides of the back frame cap 2, are exemplified in FIG 4. The corresponding positions of the screw holes 42 formed on the movable laminas 4 are posited to embed in the plate- receiving trenches 222 and align with a centerline of the orientation holes 223, which are formed on the outstanding slideways 221 mounted on the inside of the back frame cap 2 such that the screw holes 42 are located in positions corresponding to the orientation holes 223 to enable the screws to be screwed thereon for immovably fixing the movable laminas 4 on the plate-receiving trenches 222 of the back frame cap 2, as shown in FIG 4.

The screw holes 42 may be designed and adjusted to have a number suitable for the height of LCD panel 5, which has various dimensions.

Accordingly, when the LCD panel 5 provided by various manufactures is to be fixed on the back frame cap 2 that has a uniform specification, as shown in FIG 4, the movable lamina 4 embedded in the left plate- receiving trench 222 is slid and shifted to enable the topmost screw hole 42 to aim at the orientation hole 223 formed on the top of the left outstanding slideways 221 mounted on the inner side of the back frame cap 2 for fixing thereon the screw and locking the left movable lamina 4 on the left plate-receiving trench 222 formed on the back frame cap 2 by use of the movable property of two movable laminas 4, which are embedded in the plate-receiving trenches of the back frame cap 2. The movable lamina 4 embedded in the right plate-receiving trench 222 is slid and shifted to provide a diagonal highllow corresponding relationship between this movable lamina 4 and the previously orientated movable lamina 4 and to enable the bottommost screw hole 42 to aim at the orientation hole 223 formed on the bottom of the right outstanding slideways 221 mounted on the inner side of the back frame cap 2 for fixing thereon another screw and locking the right movable lamina 4 on the right plate-receiving trench 222 formed on the back frame cap 2.

Accordingly, it is suitable for the lengthwise height of the LED panel 5 that has the minimum dimension. Thereafter, according to the corresponding positions of the left and right locking ears 51 mounted on the LCD panel 5, two hexagonal studs 43 are locked on the selected stud holes 41, which are formed on the movable laminas 4 in positions corresponding to the left and right locking ears 51, by screwing thereon the screws so as to fix and orientate this small dimension LCD panel 5 on the back frame cap 2, as shown in FIG. 5.

If a large dimension LCD panel 5 is to be fixed and orientated on the back frame cap 2 that has the uniform specification, as shown in FIG. 6, two movable laminas 4, which are mounted on the left and right platereceiving trenches 222 mounted inside the back frame cap 2, are released by unscrewing the screws to adjust and shift their positions. These two movable laminas 4 are slid outwardly to enable another screw hole 42, which is mounted on the identical centerline described above, to aim at the orientation hole 223 such that the area of the back frame cap 2 for use in locking by means of the movable lamina 4 is enlarged. In other words, it can be adjusted to match with the lengthwise height of the LED panel 5 that have the large dimension. Thereafter, according to the corresponding positions of the left and right locking ears 51 mounted on the large dimension LCD panel 5, two hexagonal studs 43 are locked on the selected stud holes 41, which are formed on the movable laminas 4 in positions corresponding to the left and right locking ears 51, by screwing thereon the screws so as to fix and orientate this larger dimension LCD panel 5 on the back frame cap 2, as shown in FIG 7.

In accordance with the above description, it is apparent that the back frame cap 2 comprises two movable laminas 4 that are capable of cooperating with the locking ears 51 mounted on the LCD panel 5 manufactured by various manufactures. Accordingly, the back frame cap 2 with the uniform specification is capable of cooperating with various LCD panels 5, which are manufactured by various manufactures, so as to provide a universal external framework for the LCD monitor to prevent the drawbacks of the existing external framework of the LCD monitor, for example, wasted manufacture cost, unfavorable marketing, and poor competitiveness since it is not a universal one.

Moreover, the backside of the back frame cap 2 is covered with the sheathing 3, which is fixed and locked thereon, to enable the back frame cap 2 to completely cover the LCD panel 5 for forming an isolation shelter from the electromagnetic wave emitted from the LCD panel 5.

Accordingly, the aluminum extrusion front frame cap 1, the aluminum extrusion back frame cap 2, and the aluminum extrusion sheathing 3 of the external framework of the LCD panel are capable of entirely covering the LCD panel 5. Because of their aluminum materials, the anti-EMI requirement for the entire external framework of the LCD panel may be decreased. In comparison with the existing external framework of the LCD panel, the present invention can omit the material cost of the metal partition and lighten the integral weight and provide utility and nonobviousness.

Moreover, as shown in FIG 8 and FIG 9, the external framework disclosed in the present invention may further comprise a speaker frame 7 mounted and locked on each side thereof. A receiving trench 71 is formed on the front surface of the speaker frame 7 on which the speaker is mounted and a flexible speaker net 72 is embedded and orientated in this receiving trench 71 by means of the operation shown in FIG. 9 for sealing the speaker, which is mounted on the front surface of the speaker frame 7.

Accordingly, the assembled external framework of the present invention can be applied to the LCD monitor and used to construct the more perfect audio-visual apparatus.

Referring to FIG. 10 and FIG. 11 again, electronic components, for example, a power supply, a PCB, a connection port, etc., are mounted on the backside of the front frame cap 1. In order to embed all electronic components in the front frame cap 1, a mounting chamber is provided on the backside of two long rims 21 and two short rims 22 of the back frame cap 2 in the position between the inner edges and the outer edges thereof, wherein a receiving trench 211 and a receiving trench 223 for receiving the movable orientation blocks 24 are formed on the inner edges of the backsides of the long rims 21 and the short rims 22.

Please refer to FIG. 11 through FIG. 13, if it is desired to embed the movable orientation blocks 24 in the receiving trenches 211 and 224, the movable orientation blocks 24 must be embedded slantwise in the receiving trenches 211 and 224 first (or they are mounted through gaps formed on the long and short rims), and they are thereafter adjusted to proper positions in the receiving trenches 211 and 224 for fixing the electronic components.

If it is desired to fix the electronic components by use of the movable orientation blocks 24, the movable orientation blocks 24 must be orientated and fixed first by use of the screw 241. However, if the screw 241 is screwed onto the movable orientation blocks 24, the movable orientation blocks 24 will be driven by the rotation of the screw 241 to shift upwardly and orientate in the upper edge of the receiving trenches 211 and 224. When the movable orientation blocks 24 are fixed, they are connected to studs 242. The PCB 8 shown in FIG. 10 is fixed on the movable orientation blocks 24, which are embedded and locked in the receiving trenches 211 and 224, by means of the studs 242.

In accordance with the aforementioned description, the aluminum extrusion external framework of the LCD monitor is made of aluminum for lightening its weight and conforms to the recycle-based environmental protection. Moreover, the manufacture cost is decreased to provide with more economic benefits since it is formed by use of aluminum extrusion.

Furthermore, the movable laminas are designed to universally suitable for the existing LCD panels that has various specifications and dimensions.

The present invention has accomplished the expected objects and inventive effects, and is indeed a patentable design for conforming to the industrial application.

Claims

1. An aluminum extrusion external framework of a LCD monitor comprising: an aluminum extrusion front frame cap, an aluminum extrusion back frame cap, and an aluminum extrusion sheathing assembled with one another; and a plurality of movable laminas capable of sliding and adjusting their locking positions mounted on the inside of the back frame cap; wherein the front frame cap comprises two long rims and two short rims welded and matched with one another; the back frame cap comprises two long rims and two short rims welded and matched with one another in pairs, each short rim comprising a plate- receiving trench formed on a but surface thereof to enable the movable laminas to slide within the plate-receiving trenches, each plate- receiving trench being composed of two outstanding slideways on which orientation holes are formed; and a plurality of stud holes are formed on vertical surfaces of the mobile laminas and a plurality of screw holes are formed in non-equidistance positions corresponding to the outstanding slideways, a hexagonal stud being fixed on the stud hole in a position corresponding to a locking ear mounted on a LCD panel for fixing and assembling the LCD panel on the back frame cap.

2. The aluminum extrusion external framework of a LCD monitor of claim 1, wherein the stud holes and the screw holes formed on the movable laminas have corresponding positions and numbers by pre- drilling the movable laminas in accordance with the LCD panel provided by various manufactures.

3. The aluminum extrusion external framework of a LCD monitor of claim 1, wherein corresponding positions of the screw holes formed on the movable laminas are posited to embed in the plate-receiving trenches and align with a centerline of the orientation holes, which are formed on the outstanding slideways mounted on the inner side of the back frame cap.

4. The aluminum extrusion external framework of a LCD monitor of claim 1, wherein receiving trenches for receiving movable orientation blocks for fixing a PCB, POWER, and electronic components are formed on the inner edges of the backsides of the long rims and the short rims.

5. The aluminum extrusion external framework of a LCD monitor of claim 1, wherein the movable laminas further comprises a plurality of brace holes formed on vertical surfaces of the mobile laminas in non- equidistance positions and a brace corresponding to the locking ear of the LCD panel is connected and secured to one of the brace holes to enable the LCD panel to be assembled on the back frame cap.

6. The aluminum extrusion external framework of a LCD monitor of claim 1, wherein the front frame cap further comprises a speaker frame mounted and locked on each side thereof

7. The aluminum extrusion external framework of a LCD monitor of claim 6, wherein a receiving trench is formed on a front surface of the speaker frame and a flexible speaker net is embedded and orientated in the receiving trench for sealing a speaker, which is mounted on the front surface of the speaker frame.

8. The aluminum extrusion external framework of a LCD monitor as hereinbefore described with reference to and as illustrated in Figs. 1 to 14 of the drawings.