KR20070091849A - Plasma display apparatus - Google Patents

Abstract

A plasma display device is provided to prevent damage of a plasma display panel by forming additionally a pressure dispersion unit therein. A plasma display device includes a plasma display panel(100), a back cover(130), a cabinet(140), and a pressure dispersion unit. The plasma display panel is used for displaying images by using a plasma discharge method. The back cover is formed to cover a rear surface of the plasma display panel. The cabinet is used for fixing the plasma display panel and the back cover. The pressure dispersion unit disperses the pressure to be applied to the cabinet by transmitting the pressure to the back cover. The pressure dispersion unit is formed of the same material as the material of the cabinet. The pressure dispersion unit and the cabinet are formed with one body.

Description

Plasma Display Apparatus {Plasma Display Apparatus}

BRIEF DESCRIPTION OF DRAWINGS Fig. 1 is a diagram for explaining the configuration of a plasma display device of the present invention.

2A to 2B are views for explaining an example of the structure of a plasma display panel included in the plasma display device of the present invention.

3 is a view for explaining the configuration of the plasma display device of the present invention in more detail.

4 is a diagram for explaining a more detailed structure of regions B and C in FIG.

5 is a view for explaining the function of the pressure dispersion in more detail.

<Explanation of symbols for main parts of the drawings>

100: plasma display panel 110: image filter

120: frame 130: back cover

140: cabinet

The present invention relates to a plasma display device (Plasma Display Apparatus).

In general, a plasma display apparatus includes a plasma display panel displaying an image using plasma discharge, a frame disposed on a rear surface of the plasma display panel, and a back cover disposed to cover the frame and the plasma display panel. , Cabinet (Cabinet) and the like.

A plurality of discharge cells are formed in the plasma display panel.

When the driving voltage is supplied to the discharge cells, the discharge is generated by the driving voltage supplied in the discharge cells. Here, when discharged by the driving voltage in the discharge cell, the discharge gas filled in the discharge cell generates vacuum ultraviolet rays, and the vacuum ultraviolet light emits the phosphor formed in the discharge cell to emit visible light. Generate.

The visible light displays an image on the screen of the plasma display panel.

The plasma display panel is mostly made of a glass material, and thus there is a problem that it can be easily damaged by pressure applied from the outside.

In particular, when pressure is applied to the cabinet holding the back cover, the plasma display panel, or the like, the cabinet may be in strong contact with the plasma display panel, thereby causing damage to the plasma display panel.

As such, when the plasma display panel is damaged, the repair of the plasma display panel is difficult, and thus the plasma display panel which is mostly damaged is discarded.

As a result, damage to the plasma display panel causes an increase in the manufacturing cost per plasma display panel.

SUMMARY OF THE INVENTION An object of the present invention is to provide a plasma display device that prevents damage to a plasma display panel even when a strong pressure is applied to a cabinet.

Plasma display device of the present invention for achieving the above object is a plasma display panel for displaying an image using a plasma discharge, a back cover is installed to cover the back of the plasma display panel, and the plasma display panel And it is preferable to include a cabinet (Cabinet) for fixing the back cover and a pressure dispersion for transmitting and distributing the pressure applied to the cabinet to the back cover.

In addition, the pressure distribution unit is characterized in that it is made of the same material as the cabinet.

In addition, the pressure distribution unit is characterized in that it is formed integrally with the cabinet.

In addition, the pressure distribution is characterized in that a part of the cabinet is formed to protrude in the inner direction.

The apparatus may further include an image filter disposed on the front surface of the plasma display panel, and a filter supporter connecting the image filter and the back cover, wherein the pressure distribution unit is connected to the back cover and the filter supporter. Characterized in that arranged.

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

1 is a view for explaining the configuration of the plasma display device of the present invention.

Referring to FIG. 1, the plasma display apparatus of the present invention includes a plasma display panel 100, a back cover 130, a cabinet 140, and a pressure distribution unit (not shown). In FIG. 1, the pressure dispersion unit is not illustrated for convenience of drawing.

In addition, it is preferable to further include a frame (Frame, 120), the image filter (110). Although not shown, it is more preferable to further include a filter supporter.

The plasma display panel 100 displays an image by using plasma discharge.

The plasma display panel 100 will be described in more detail with reference to FIGS. 2A to 2B.

2A to 2B are views for explaining an example of the structure of the plasma display panel included in the plasma display device of the present invention.

First, referring to FIG. 2A, a plasma display panel according to the present invention includes a front panel 201 including an electrode, preferably a front substrate 201 on which scan electrodes 202 and Y and sustain electrodes 203 and Z are formed. A rear panel including a back substrate 211 on which an electrode intersecting the scan electrodes 202 and Y and the sustain electrodes 203 and Z, preferably the address electrodes 213 and X, are formed. 210 is made of a combination.

Here, the electrodes formed on the front substrate 201, preferably the scan electrodes 202 and Y and the sustain electrodes 203 and Z, generate a discharge in a discharge space, that is, a discharge cell, and at the same time Maintain the discharge.

The dielectric layer, preferably on the upper surface of the front substrate 201 where the scan electrodes 202 and Y and the sustain electrodes 203 and Z are formed to cover the scan electrodes 202 and Y and the sustain electrodes 203 and Z. Upper dielectric layer 204 is formed.

This upper dielectric layer 204 limits the discharge current of the scan electrodes 202 and Y and the sustain electrodes 203 and Z and insulates the scan electrodes 202 and Y from the sustain electrodes 203 and Z.

A protective layer 205 is formed on the top surface of the upper dielectric layer 204 to facilitate discharge conditions. The protective layer 205 is formed by, for example, depositing a material such as magnesium oxide (MgO) over the upper dielectric layer 204.

Meanwhile, electrodes formed on the rear substrate 211, preferably address electrodes 213 and X, supply data Data to the discharge cells.

A dielectric layer, preferably a lower dielectric layer 215 is formed on the back substrate 211 on which the address electrodes 213 and X are formed to cover the address electrodes 213 and X.

This lower dielectric layer 215 insulates the address electrodes 213, X.

A discharge space, that is, a partition 212, such as a stripe type or a well type, is formed on the lower dielectric layer 215 to partition the discharge cells. Accordingly, discharge cells such as red (R), green (G), and blue (B) are formed between the front substrate 201 and the rear substrate 211.

Here, a predetermined discharge gas is filled in the discharge cell partitioned by the partition wall 212.

In addition, a phosphor layer 214 is formed in a discharge cell partitioned by the partition 212 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 the plasma display panel of the present invention described above, when the driving voltage is supplied to at least one of the scan electrodes 202, Y, the sustain electrodes 203 and Z, and the address electrodes 213 and X, the partition 212 is applied to the partition wall 212. Discharges occur within the discharge cells partitioned by each other.

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 214 formed in the discharge cells. Then, a predetermined visible light is generated in the phosphor layer 214, and the visible light is emitted to the outside through the front substrate 201 in which the upper dielectric layer 204 is formed, and thus the front substrate 201. A predetermined image is displayed on the outer surface of the.

Meanwhile, in the description of FIG. 2A, only the case where the scan electrodes 202 and Y and the sustain electrodes 203 and Z are each formed of one layer is illustrated and described. However, the scan electrodes 202 and Y or the It is also possible that at least one of the sustain electrodes 203 and Z consists of a plurality of layers. This will be described with reference to FIG. 2B.

Referring to FIG. 2B, the scan electrodes 202 and Y and the sustain electrodes 203 and Z may be formed of two layers, respectively.

In particular, in consideration of light transmittance and electrical conductivity, the scan electrodes 202 and Y and the sustain electrodes 203 and Z are opaque silver (Ag) to emit light generated in the discharge cell to the outside and to secure driving efficiency. Bus electrodes 202b and 203b and transparent electrodes 202a and 203a made of transparent indium tin oxide (ITO).

As such, the reason why the scan electrodes 202 and Y and the sustain electrodes 203 and Z include the transparent electrodes 202a and 203a 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 202 and Y and the sustain electrodes 203 and Z include the bus electrodes 202b and 203b is that the scan electrodes 202 and Y and the sustain electrodes 203 and Z are transparent electrodes. In the case of including only 202a and 203a, the driving efficiency can be reduced because the electrical conductivity of the transparent electrodes 202a and 203a is relatively low, so that the transparent electrodes 202a and 203a can cause such a reduction in the driving efficiency. To compensate for the low electrical conductivity.

2A to 2B, only one example of the plasma display panel of the present invention is shown and described, and it is to be understood that the present invention is not limited to the plasma display panel having the structure as shown in FIGS. 2A to 2B. For example, the plasma display panel of FIGS. 2A to 2B shows only the case where the upper dielectric layer 204 and the lower dielectric layer 215 are each one layer, but the upper dielectric layer 204 and At least one or more of the lower dielectric layers 215 may be formed of a plurality of layers.

Referring to FIG. 1, the front surface of the plasma display panel 100 has an image filter functioning to shield electromagnetic interference (EMI) generated when the plasma display panel 100 is driven. It is preferred that 110 be disposed.

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.

In addition, a frame 120 is disposed on the rear surface of the plasma display panel 100.

The back of the frame 120 may be a driving unit for supplying a predetermined driving signal to the electrodes of the plasma display panel 100. In addition, the back cover 130 may be fastened.

The back cover 130 is installed to cover the rear surface of the plasma display panel 100. More preferably, the plasma display panel 100 is disposed to cover the rear surface of the plasma display panel 100 in which the frame 120 is disposed, thereby protecting the plasma display panel 100 and the driving units disposed on the rear surface of the frame 120.

The cabinet 140 fixes the plasma display panel 100 and the back cover 130.

FIG. 1 briefly shows an example of the configuration of the plasma display device of the present invention, and the present invention is not limited to the structure of FIG. For example, in FIG. 1, two cabinets 140 are shown, and these two cabinets 140 are shown spaced apart from each other. However, the cabinets 140 may be integrated into one.

And, although not shown, the pressure distribution unit transmits and distributes the pressure applied to the cabinet 140 to the back cover 130. In addition, although not shown, the filter supporter connects the image filter 110 and the back cover 130.

The pressure dispersion unit and the filter supporter will be described in more detail with reference to FIGS. 3 to 4.

3 is a view for explaining the configuration of the plasma display device of the present invention in more detail.

4 is a view for explaining a more detailed structure of the regions B and C in FIG.

First, referring to FIG. 3, it can be seen that the frame 120 is disposed on the rear surface of the plasma display panel 100.

In addition, an image filter 110 of a film filter type is attached to the front surface of the plasma display panel 100.

In addition, the back cover 130 is disposed to surround the back surface of the plasma display panel 100 to which the frame 120 is disposed on the rear surface and the image filter 110 is attached to the front surface, such a back cover 130 and the image filter. The filter supporter 300 connects 110.

Preferably, as shown in FIG. 4A, the filter supporter 300 is connected to the image filter 100 in a region B with a predetermined gasket 400 interposed therebetween.

The cabinet 140 is disposed to surround the filter supporter 300, and the pressure distribution unit 310 is disposed between the cabinet 140 and the back cover 130.

The pressure distribution unit 310 is disposed at the connection point of the bag cover 130 and the filter supporter 300, that is, in the vicinity of the region C.

For example, as shown in FIG. 4B, the filter supporter 300 connected to the image filter 110 in the region B is connected to the back cover 130 by a fastening means 320 such as a screw in the region C. ). In addition, the fastening means 320 preferably fastens the pressure distribution unit 310 together when connecting the bag cover 130 and the filter supporter 300.

Here, the fastening means 320 is preferably fixed to the end of the fixing portion 410 for a stronger fastening.

As such, as the image filter 110 and the back cover 130 are connected by the filter supporter 300, electromagnetic interference (EMI) generated when the plasma display panel 100 is driven is carried on the filter supporter 300. It is shielded by being delivered to the back cover 130.

Here, the pressure distribution unit 310 is preferably formed integrally with the cabinet 140 in order to more easily transmit and distribute the pressure applied to the cabinet 140 to the back cover 130.

More preferably, the pressure distribution unit 310 is integrally formed with a part of the cabinet 140 protruding inward.

In addition, the pressure distribution unit 310 is preferably made of the same material as the cabinet 140.

Referring to Figure 5 attached to the function of such a pressure distribution unit 310 as follows.

5 is a view for explaining the function of the pressure dispersion in more detail.

Referring to FIG. 5, when the pressure dispersion unit is omitted as shown in (a), when a predetermined pressure is applied to the cabinet 140 from the outside, the cabinet 140 is connected to the plasma display panel 100 to which the image filter 110 is attached. And the plasma display panel 100 may be damaged.

On the other hand, when the pressure distribution unit 310 is formed as shown in (b), even if a relatively large pressure is applied to the cabinet 140 from the outside, the pressure applied to the cabinet 140 is the back cover through the pressure distribution unit 310. 143, thereby preventing the cabinet 140 from hitting the plasma display panel 100, thereby preventing damage to the plasma display panel 100.

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.

As described in detail above, the plasma display apparatus of the present invention further has a pressure jetting portion, thereby preventing damage to the plasma display panel.

Claims (5)

A plasma display panel displaying an image using plasma discharge; A back cover installed to cover the rear surface of the plasma display panel; A cabinet fixing the plasma display panel and the back cover; And A pressure distribution unit configured to transmit and distribute the pressure applied to the cabinet to the back cover; Plasma display device comprising a. The method of claim 1, The pressure dispersion is Plasma display device, characterized in that made of the same material as the cabinet. The method of claim 1, The pressure dispersion is And a plasma display device which is formed integrally with the cabinet. The method of claim 3, wherein The pressure dispersion is And a part of the cabinet protrudes inwardly. The method of claim 1, An image filter disposed in front of the plasma display panel; A filter supporter for connecting the image filter and the back cover is further included. The pressure dispersion is And at the connection point of the bag cover and the filter supporter.

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