KR20080014348A - Image display apparatus - Google Patents

Abstract

An image display apparatus is provided to improve the connection between a back cover and a front cover, thereby reducing vibration and noise. An image display panel(100) displays an image. A radiating frame(120) is arranged at the rear of the image display panel. A connection member(150) is arranged at a side of the radiating frame and has one or more penetration holes. The connection member is also formed integrally with the radiating frame. The connection member is fixed to the radiating frame by the predetermined combination member. The connection member connects a back cover for covering the rear of the image display panel with a front cover for covering a portion of the image display panel through the penetration holes. A buffer member includes conductive materials.

Description

Image Display Apparatus

1 is a view for explaining an example of the configuration of a video display device according to the present invention.

2 is a view for explaining the heat dissipation frame and the connection in more detail.

3A to 3B are diagrams for explaining an example of the function of the connecting portion.

4A to 4C are views for explaining another arrangement method of the connecting portion.

5A to 5B are views for explaining the form of the connecting portion.

6A to 6B are views for explaining the through holes of the connecting portion.

7 is a view for explaining the inclination adjustment of the connecting portion.

8A to 8B are views for explaining an example of the structure of a plasma display panel that can be included in an image display device according to the present invention;

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

100: image display panel 110: image filter

120: heat dissipation frame 130: back cover

140: front cover 150: connection portion

The present invention relates to an image display device.

In general, the image display apparatus includes an image display panel displaying an image on a screen and a heat dissipation frame disposed on a rear surface of the image display panel.

Here, the image display panel includes a liquid crystal display panel (LCD), a field emission display panel (FED), organic light emitting diodes (OLED), and a plasma display panel (Plasma). Display panel).

The heat dissipation frame may include a driving board for supplying a driving signal to the image display panel.

Meanwhile, in the conventional video display device, vibration occurs during driving, and noise may occur due to the vibration.

In order to solve the above problems, an object of the present invention is to provide an image display device in which vibration and noise are reduced by improving the fastening of a back cover and a front cover.

According to an embodiment of the present invention, an image display panel for displaying an image, a heat dissipation frame disposed on a rear surface of the image display panel, and a side surface of the heat dissipation frame are formed, and at least one through hole is formed. It is preferable to include a connecting portion.

Here, the connection portion is characterized in that formed integrally with the heat dissipation frame,

Alternatively, the connection portion may be fastened to the heat dissipation frame by a predetermined fastening means.

The connecting unit may connect a back cover covering the rear surface of the image display panel and a front cover covering a part of the front surface of the image display panel through the through hole.

In addition, the cushioning portion is further provided between the connecting portion and the back cover or between the connecting portion and the front cover.

In addition, the buffer portion is characterized in that it comprises an electrically conductive material.

The image display panel may be a plasma display panel which displays an image by using plasma discharge.

Hereinafter, an image display device of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining an example of the configuration of a video display device according to the present invention.

Referring to FIG. 1, an image display apparatus according to the present invention includes an image display panel 100, a heat dissipation frame 120, and a connection unit 150.

In addition, the image display device according to the present invention preferably further includes a back cover 130, a front cover 140, and an image filter 110.

The image display panel 100 displays a predetermined image on the screen.

The back cover 130 is disposed to cover the rear surface of the image display panel 100. In addition, the front cover 140 is disposed to cover a part of the front surface of the image display panel 100.

The back cover 130 and the front cover 140 may protect the image display panel 100 from external impact.

The image filter 110 may be disposed on the front surface of the image display panel 100 and may perform a function of shielding electromagnetic interference (EMI) generated when the image display panel 100 is driven.

The image filter 110 may be a film filter or a glass filter.

The image filter 110 may include an electromagnetic shielding layer for shielding electromagnetic interference, an antireflection layer for reducing ultraviolet rays and external reflected light, a near infrared shielding layer for blocking near infrared rays, and the like.

The heat dissipation frame 120 is disposed on the rear surface of the image display panel 100. The heat dissipation frame 120 may include a driving board (not shown) for supplying a driving signal to an electrode of the image display panel 100 or a voltage source (not shown) for generating a driving voltage.

The connection part 150 is disposed on the side surface of the heat dissipation frame 120, and at least one through hole (Hole, not designated) is formed.

The connection part 150 may connect the back cover 130 covering the rear surface of the image display panel 100 and the front cover 140 covering a part of the front surface of the image display panel 100 through the through hole. .

Looking at the heat dissipation frame 120 and the connection portion 150 in more detail as follows.

2 is a view for explaining the heat dissipation frame and the connection in more detail.

2, the through part 211 is formed in the connection part 210, and the connection part 210 is disposed at the side of the heat dissipation frame 200.

Here, in FIG. 2, only a case in which a total of six connection parts 210 are disposed on one side of the heat dissipation frame 200 is illustrated, but the number of such connection parts 210 may be varied to one, two, three, and the like. can be changed.

Looking at the attached Figure 3a to 3b attached to the function of the connection 210 as follows.

3A to 3B are views for explaining an example of the function of the connecting portion.

First, referring to FIG. 3A, an example of a structure in which the connecting portion 210 fastens the back cover 130 and the front cover 140 is shown.

For example, the image display panel 100 is disposed in front of the heat dissipation frame 120, and the image filter 110 is disposed in front of the image display panel 100. The image filter 110 is preferably an image filter of a film filter type.

Here, an adhesive layer 340 is formed between the heat dissipation frame 120 and the image display panel 100, and the image display panel 100 may be attached to the heat dissipation frame 120 by the adhesive layer 340. have.

The connection part 210 may be fastened to the heat dissipation frame 120. For example, the connection part 210 is fastened to the heat dissipation frame 120 by a fastening means of reference numeral 300. Herein, the fastening means 300 may be various fastening means such as a screw type, a rivet type, a pin type, and the like.

Meanwhile, in FIG. 3A, only the case where the connecting portion 210 is fastened to the heat dissipation frame 120 by the fastening means 300 is illustrated. However, the connecting portion 210 and the heat dissipation frame 120 may be integrally formed. .

In addition, the back cover 130 and the front cover 140 may be fastened to each other by the connecting portion 210. In more detail, the fastening means having the reference numeral 310 passes through the through hole of the connection portion 210 to fasten the back cover 130 and the front cover 140 to each other.

As such, when the back cover 130 and the front cover 140 are fastened through the through hole of the connection part 210, vibration and noise may be reduced during driving.

For example, when the connection unit 210 is omitted, the back cover 130 and the front cover 140 may be directly fastened. In this case, the back cover 130 and the front cover 140 may vibrate during driving, and noise may be generated by the vibration.

On the other hand, when the back cover 130 and the front cover 140 is fastened by being connected to the connecting portion 210 as in the present invention, the back cover 130 and the front cover 140 by the connecting portion 210 The effect of being fixed to the heat dissipation frame 120 can be obtained. Accordingly, the generation of vibration during driving can be reduced, and as a result, the generation of noise can be reduced.

Next, referring to FIG. 3B, buffer parts 320 and 330 may be further provided between the back cover 130 and the connection part 210 and between the front cover 140 and the connection part 210.

Here, although FIG. 3B illustrates only the case where the buffer parts 320 and 330 are further provided between the back cover 130 and the connection part 210 and between the front cover 140 and the connection part 210, respectively, The buffer unit may be provided only at any one of the cover 130 and the connection unit 210 or between the front cover 140 and the connection unit 210. That is, either the buffer of 320 or the buffer of 330 may be omitted.

Here, the buffers 320 and 330 preferably include an electrically conductive material.

As such, when the buffer parts 320 and 330 include an electrically conductive material, the connection part 210 and the back cover 130 or the connection part 210 and the front cover 140 may be electrically connected to each other. As a result, the heat dissipation frame 120 and the back cover 130 or the heat dissipation frame 120 and the front cover 140 may be electrically connected. Accordingly, the ground GND may be strengthened.

Next, FIGS. 4A to 4C are diagrams for describing another arrangement method of the connection unit.

First, referring to FIG. 4A, unlike in FIG. 2, the connecting portions 410 are disposed on two long sides of the heat dissipation frame 400.

For example, in FIG. 2, six connections are disposed on only one side of the heat dissipation frame, that is, the upper side, but as shown in FIG. 4A, the two sides of the heat dissipation frame 400, the upper side and the lower side, respectively. Six connection parts 410 may be arranged. Here, the number of the connecting portion 410 is variously adjustable.

Next, referring to FIG. 4B, connecting parts 420 and 430 may be disposed on all sides of the heat dissipation frame 400, respectively.

For example, six first connecting portions 420 are disposed on two long sides of the heat dissipation frame 400, namely, an upper side and a lower side thereof, and two short sides of the heat dissipation frame 400. Four second connection parts 430 may be disposed on the right side.

Here, the shape of the first connector 420 may be substantially the same as or different from that of the second connector 430.

Next, referring to FIG. 4C, an integrated connection part 450 is disposed on a side of the heat dissipation frame 440, for example, an upper side. Herein, the integrated connection unit 450 has a form in which a plurality of connection units are integrated into one, as compared with FIGS. 4A to 4B.

That is, as shown in FIGS. 4A to 4B, a plurality of connecting portions may be formed, respectively, or two or more connecting portions may be formed by integrating one integrated connecting portion.

Next, FIGS. 5A to 5B are diagrams for describing the shape of a connection unit.

First, referring to FIG. 5A, the connection part 500 disposed on the heat dissipation frame 520 has a shape in which a central part is recessed.

Next, referring to FIG. 5B, the connection part 500 has a trapezoidal shape.

As such, the connection part 500 may have various shapes.

Next, FIGS. 6A to 6B are diagrams for describing the through hole of the connection portion.

First, referring to FIG. 6A, three through holes 610 may be formed in the connection part 600.

Next, referring to FIG. 6B, one through hole 610 may be formed in the connection part 600.

As such, the number of through holes 610 formed in the connection part 600 may be variously adjusted.

Next, Figure 7 is a view for explaining the inclination adjustment of the connecting portion.

Referring to FIG. 7, the connector 740 may be inclined toward the image display panel 720 disposed on the front surface of the heat dissipation frame 730. Alternatively, the image display panel 720 may be inclined in the opposite direction.

As such, when the connection part 740 is tilted in a specific direction, even if the shape of the heat dissipation frame 730, the back cover (not shown), or the front cover (not shown) is changed, the back cover and the front cover may be strengthened accordingly. Can be.

In addition, by adjusting the inclination of the connecting portion 740 in a specific direction, it is possible to adjust the fastening strength of the back cover and the front cover.

Here, reference numeral 741 not described in FIG. 7 denotes a through hole, and reference numeral 750 denotes an adhesive layer.

In the image display apparatus according to the present invention described above, the image display panel is preferably a plasma display panel for displaying an image using plasma discharge.

This is because the plasma display panel generates a plasma discharge in the discharge cell to display an image, and thus, a relatively strong vibration is generated by the discharge, and thus a noise is relatively high.

An example of the plasma display panel applied to the image display device of the present invention will be described with reference to FIGS. 8A to 8B.

8A to 8B are views for explaining an example of the structure of a plasma display panel that can be included in the image display device according to the present invention.

First, referring to FIG. 8A, a plasma display panel that can be applied to the present invention includes an electrode (eg, a front substrate) on which first electrodes 802 and Y and second electrodes 803 and Z, which are parallel to each other, are formed. A front panel 800 including an 801 and an electrode intersecting the above-described first electrode 802, Y and the second electrode 803, Z, preferably the third electrode 813, X are formed. The rear panel 810 including the rear substrate 811 may be bonded to each other.

Here, the electrodes formed on the front substrate 801, preferably the first electrodes 802 and Y and the second electrodes 803 and Z, generate a discharge in a discharge space, that is, a discharge cell, and discharge the same. The discharge of the cell can be maintained.

The dielectric layer covers the first electrodes 802 and Y and the second electrodes 803 and Z on the front substrate 801 on which the first electrodes 802 and Y and the second electrodes 803 and Z are formed. Preferably, an upper dielectric layer 804 may be formed.

This upper dielectric layer 804 limits the discharge current of the first electrode 802, Y and the second electrode 803, Z and between the first electrode 802, Y and the second electrode 803, Z. Can be insulated.

A protective layer 805 is formed on the top surface of the upper dielectric layer 804 to facilitate a discharge condition. The protective layer 805 may be formed through a method of depositing a material such as magnesium oxide (MgO) on the upper dielectric layer 804.

On the other hand, an electrode, preferably, third electrodes 813 and X are formed on the rear substrate 811, and a third electrode 813, is formed on the rear substrate 811 on which the third electrodes 813 and X are formed. A dielectric layer, preferably lower dielectric layer 815 may be formed to cover X).

This lower dielectric layer 815 may insulate the third electrodes 813, X.

On top of the lower dielectric layer 815, a partition 812 such as a stripe type, a well type, a delta type, or a honeycomb type for partitioning a discharge cell, that is, a discharge cell, is formed. Can be formed. Accordingly, discharge cells such as red (R), green (G), and blue (B) may be formed between the front substrate 801 and the rear substrate 811.

In addition, in addition to the red (R), green (G), and blue (B) discharge cells, white (W) or yellow (Yellow: Y) discharge cells may be further formed.

Here, one or more of the plurality of discharge cells may be different in size from other discharge cells. For example, when the red (R), green (G), and blue (B) discharge cells are formed, the size of the blue (B) discharge cell is larger than that of the red (R) or green (G) discharge cell. Can be.

The partition 812 may be formed to have a differential height. For example, when the partition wall 812 includes a horizontal partition wall and a vertical partition wall intersecting with the horizontal partition wall, the heights of the vertical partition wall and the horizontal partition wall may be different. Alternatively, one or more of the horizontal bulkhead or the vertical bulkhead may be formed differentially in height. Alternatively, the heights of the vertical and horizontal partition walls may be substantially the same.

Although not shown, one or more holes or recesses may be formed in the partition wall 812, and a channel having a predetermined depth may be formed.

Here, it is preferable that a predetermined discharge gas is filled in the discharge cell partitioned by the partition wall 812. In addition, the discharge gas may include xenon (xenon: Xe).

In addition, a phosphor layer 814 may be formed in a discharge cell partitioned by the partition wall 812 to emit visible light for image display during address discharge. For example, red (R), green (G), and blue (B) phosphor layers may be formed.

In addition to the red (R), green (G), and blue (B) phosphors, it is also possible to further form a white (W) and / or yellow (Y) phosphor layer.

In the plasma display panel applicable to the image display device according to the present invention described above, at least one electrode of the first electrode 802, Y, the second electrode 803, Z, or the third electrode 813, X may be used. When the driving signal is supplied, discharge may occur in the discharge cells partitioned by the partition wall 812.

Then, vacuum ultraviolet rays are generated in the discharge gas filled in the discharge cells, and the vacuum ultraviolet rays are applied to the phosphor layer 814 formed in the discharge cells. Then, a predetermined visible light is generated in the phosphor layer 814, and the visible light is emitted to the outside through the front substrate 801 on which the upper dielectric layer 804 is formed. A predetermined image may be displayed on the outer surface.

On the other hand, in the above description of FIG. 8A, only the case where the scan electrodes 802 and Y and the sustain electrodes 803 and Z are formed of one layer each has been illustrated and described. However, the scan electrodes 802 and Y or the It is also possible that at least one of the sustain electrodes 803 and Z consists of a plurality of layers. This will be described with reference to FIG. 8B.

Referring to FIG. 8B, the scan electrodes 802 and Y and the sustain electrodes 803 and Z may each include a plurality of sides, for example, two layers.

In particular, in consideration of light transmittance and electrical conductivity, the scan electrodes 802 and Y and the sustain electrodes 803 and Z are opaque silver (Ag) to emit light generated in the discharge cell to the outside and to secure driving efficiency. Bus electrodes 802b and 803b) and transparent electrodes 802a and 803a made of transparent indium tin oxide (ITO).

As such, the reason why the scan electrodes 802 and Y and the sustain electrodes 803 and Z include the transparent electrodes 802a and 803a is that when visible light generated in the discharge cells is emitted to the outside of the plasma display panel. To be released effectively.

In addition, the reason why the scan electrodes 802 and Y and the sustain electrodes 803 and Z include the bus electrodes 802b and 803b is that the scan electrodes 802 and Y and the sustain electrodes 803 and Z are transparent electrodes. In the case of including only 802a and 803a, the driving efficiency can be reduced because the electrical conductivity of the transparent electrodes 802a and 803a is relatively low, so that the transparent electrodes 802a and 803a can cause such a reduction in the driving efficiency. To compensate for the low electrical conductivity.

In the meantime, only one example of the plasma display panel that can be applied to the image display device of the present invention is shown and described, and the present invention is not limited to the plasma display panel having the structure described above. For example, the above description shows only the case where the upper dielectric layer 804 and the lower dielectric layer 815 are each one layer, but at least one of the upper dielectric layer and the lower dielectric layer is a plurality of layers. It can also be layered.

In addition, a black layer (not shown) may be further formed on the partition 812 to prevent reflection of external light due to the partition 812.

In addition, a black layer (not shown) may be further formed at a specific position on the front substrate 801 corresponding to the partition wall 812.

As such, the structure of the plasma display panel applicable to the image display device according to the present invention may be variously changed.

As such, the technical configuration of the present invention described above can be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the foregoing detailed description, and the meaning and scope of the claims are as follows. And all changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

The video display device of the present invention described above in detail has an effect of improving the strength of fastening between the back cover and the front cover by connecting the back cover and the front cover, thereby reducing vibration and noise.

Claims (7)

An image display panel displaying an image; A heat dissipation frame disposed on a rear surface of the image display panel; And A connection part disposed at a side of the heat dissipation frame and having at least one through hole formed therein; Image display device comprising a. The method of claim 1, And the connection part is integrally formed with the heat dissipation frame. The method of claim 1, And the connection part is fastened to the heat dissipation frame by a predetermined fastening means. The method of claim 1, And the connection part connects a back cover covering the rear surface of the image display panel and a front cover covering a part of the front surface of the image display panel through the through hole. The method of claim 4, wherein And a buffer part is further provided between the connection part and the back cover or between the connection part and the front cover. The method of claim 5, wherein And the buffer part comprises an electrically conductive material. The method of claim 1, And the image display panel is a plasma display panel for displaying an image using plasma discharge.

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