KR100516939B1 - Plasma display panel - Google Patents

Abstract

The present invention relates to a plasma display panel capable of increasing the ground area of a film type front filter.

The plasma display panel of the present invention comprises an upper substrate; A lower substrate bonded to the upper substrate by a sealing agent; A black layer formed on the upper substrate overlapping the sealing agent to define an effective display area; A film type front filter disposed on the front surface of the upper substrate; And a ground plane formed at an edge of the front filter overlapping the black layer and the sealing agent.

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly, to a plasma display panel capable of increasing the ground area of a film type front filter.

Plasma Display Panels (hereinafter referred to as "PDPs") are characterized by emitting phosphors by 147 nm ultraviolet rays generated during discharge of an inert mixed gas such as He + Xe, Ne + Xe or He + Ne + Xe. An image containing graphics is displayed. Such a PDP is not only thin and easy to enlarge, but also greatly improved in quality due to recent technology development. In particular, the three-electrode AC surface discharge type PDP has advantages of low voltage driving and long life because wall charges are accumulated on the surface during discharge and protect the electrodes from sputtering caused by the discharge.

1 is a perspective view illustrating a discharge cell structure of a conventional plasma display panel.

Referring to FIG. 1, a discharge cell of a three-electrode AC surface discharge type PDP includes a scan electrode Y and a sustain electrode Z formed on the upper substrate 10, and an address electrode formed on the lower substrate 18. X). Each of the scan electrode Y and the sustain electrode Z has a line width smaller than the line widths of the transparent electrodes 12Y and 12Z and the transparent electrodes 12Y and 12Z and is formed at one edge of the transparent electrode 13Y, 13Z).

The transparent electrodes 12Y and 12Y are typically formed on the upper substrate 10 by indium-tin-oxide (ITO). The metal bus electrodes 13Y and 13Z are usually formed of metals such as chromium (Cr) and formed on the transparent electrodes 12Y and 12Z to reduce voltage drop caused by the transparent electrodes 12Y and 12Z having high resistance. The upper dielectric layer 14 and the passivation layer 16 are stacked on the upper substrate 10 having the scan electrode Y and the sustain electrode Z side by side. In the upper dielectric layer 14, wall charges generated during plasma discharge are accumulated. The protective layer 16 prevents damage to the upper dielectric layer 14 due to sputtering generated during plasma discharge and increases emission efficiency of secondary electrons. As the protective film 16, magnesium oxide (MgO) is usually used.

The lower dielectric layer 22 and the partition wall 24 are formed on the lower substrate 18 on which the address electrode X is formed, and the phosphor layer 26 is coated on the surfaces of the lower dielectric layer 22 and the partition wall 24. The address electrode X is formed in the direction crossing the scan electrode Y and the sustain electrode Z. The partition wall 24 is formed in a stripe or lattice shape to prevent the ultraviolet rays and the visible light generated by the discharge from leaking to the adjacent discharge cells. The phosphor layer 26 is excited by ultraviolet rays generated during plasma discharge to generate visible light of any one of red, green, and blue. Inert mixed gas is injected into the discharge space provided between the upper and lower substrates 10 and 18 and the partition wall 24.

The PDP is time-divisionally driven by dividing one frame into several subfields having different number of emission times in order to implement grayscale of an image. Each subfield is divided into an initialization period for initializing the full screen, an address period for selecting a scan line and selecting a cell in the selected scan line, and a sustain period for implementing gray levels according to the number of discharges.

For example, when the image is to be displayed with 256 gray levels, as shown in FIG. 2, the frame period (16.67 ms) corresponding to 1/60 second is divided into eight subfields SF1 to SF8. As described above, each of the eight subfields SF1 to SF8 is divided into an initialization period, an address period, and a sustain period. The initialization period and the address period of each subfield are the same for each subfield, while the sustain period is increased at a rate of 2n (n = 0, 1, 2, 3, 4, 5, 6, 7) in each subfield.

In the PDP driven as described above, a front filter is installed on the upper substrate 10 to shield electromagnetic waves and prevent reflection of external light.

3 is a cross-sectional view schematically illustrating one side of a conventional plasma display panel.

Referring to FIG. 3, a conventional PDP includes a panel 32 formed by joining an upper substrate 10 and a lower substrate 18, a front filter 30 installed on a front surface of the panel 32, and a panel ( 32, a printed circuit board 36 installed to be attached to the heat sink 34, a back cover 38 formed to surround the back of the PDP, and the front filter 30. And a filter support portion 40 for connecting the bag cover 38 and a support member 42 provided between the front filter 30 and the bag cover 38 so as to surround the filter support portion 40.

The printed circuit board 36 supplies a driving signal to the electrodes of the panel 32. To this end, the printed circuit board 36 includes various driving units not shown. The panel 32 displays a predetermined image in response to a drive signal supplied from the printed circuit board 36. The heat sink 34 dissipates heat generated from the panel 32 and the printed circuit board 36. The back cover 38 protects the panel 32 from external shocks and blocks electromagnetic waves emitted to the rear surface (hereinafter referred to as "EMI").

The filter support 40 electrically connects the front filter 30 to the bag cover 38. Such a filter support 40 grounds the front filter 30 to the bag cover 38 and prevents EMI from being emitted to the side. The support member 42 supports the filter support 40, the front filter 30, the bag cover 38, and the like.

The front filter 30 shields EMI and prevents reflection of external light. To this end, the front filter 30 is referred to as an antireflection film 50, an optical film 52, a glass 54, an EMI shielding film 56 and a near infrared (NIR) as shown in FIG. A shielding film 58 is provided. Here, in practice, an adhesive layer is formed between the films 50, 52, 54, 56, 58 of the front filter 30 to bond the films 50, 52, 54, 56, 58. In addition, a black layer 60 formed on the edge of the annihilation filter 30 is further provided.

The antireflection coating 50 prevents light incident from the outside from being reflected back to the outside to improve the contrast of the PDP. The antireflective film 50 is formed on the surface of the front filter 30. Meanwhile, the antireflection film 50 may be further formed on the rear surface of the front filter 30. The optical characteristic film 52 lowers the transmittance of red (R) and green (G) among the light incident from the panel 32, and improves the optical characteristic of the PDP by increasing the transmittance of blue (B).

The glass 54 prevents the front filter 30 from being damaged from an external impact. In other words, the glass 54 supports the front filter 30 to prevent the front filter 30 from being damaged from an external impact. The EMI shielding film 56 shields the EMI to prevent the EMI incident from the panel 32 from being emitted to the outside. The NIR shielding film 58 shields the NIR emitted from the panel 32 to prevent the NIR above the reference from being emitted to the outside so that signals transmitted using the IR, such as a remote controller, can be normally transmitted.

The black layer 60 defines the effective display area A / A of the panel 32 and at the same time hides unnecessary portions of the edge portion of the PDP module.

This front filter 30 is electrically connected to the bag cover 38 through the filter support 40 as shown in FIG. In detail, the filter support 40 is connected to the rear surface of the front filter 30 at one end of the front filter 30. In this case, the filter support 40 is electrically connected to at least one of the EMI shielding film 56 and the NIR shielding film 58. That is, the filter support 40 connects the front filter 30 to the bag cover 38 to shield EMI and / or NIR.

In the conventional front filter 30, a glass 54 larger than the size of the upper substrate of the panel 32 is used to prevent the front filter 30 from being damaged by an impact from the outside. However, when the glass 54 is inserted into the front filter 30 in this way, the thickness of the front filter 30 becomes thick. In addition, when the glass 54 is inserted into the front filter 30, the weight becomes heavy and the manufacturing cost increases.

Therefore, the film type front filter 70 from which the glass 54 is removed as shown in FIG. 6 has been proposed. The film type front filter 70 has the same size as the upper substrate of the panel and includes an antireflection film 80, an optical characteristic film 82, an EMI shielding film 86, and an NIR shielding film 88. Here, an adhesive layer is formed between the films 80, 82, 86, and 88 of the film type front filter 70 to bond the films 80, 82, 86, and 88. In addition, the film type front filter 70 includes a ground plane 72 formed at an edge region of the antireflective film 80, and a black layer 90 formed at a predetermined interval inside the ground plane 72.

The antireflective film 80 is formed on the surface of the film type front filter 70 to prevent the light incident from the outside from being reflected back to the outside. The antireflective film 80 may be further formed on the rear surface of the film type front filter 70. The optical characteristic film 82 lowers the transmittance of red (R) and green (G) among the light incident from the panel, and improves the optical characteristic of the PDP by increasing the transmittance of blue (B).

The EMI shielding film 86 shields the EMI to prevent the EMI incident from the panel from being emitted to the outside. The NIR shielding film 88 shields the NIR incident from the panel. The NIR shielding film 88 prevents the NIR above the reference from being emitted to the outside so that signals transmitted from the remote controller or the like to the panel can be normally transmitted.

The ground plane 72 is electrically connected to the bag cover 38 as shown in FIG. 3 through a filter support not shown. The black layer 90 defines an effective display area (A / A) of the panel and at the same time hides unnecessary portions of the edge portion of the PDP module.

As described above, the PDP having the film type front filter 70 forms the ground plane 72 and the black layer 90 at the same time because the film type front filter 70 is manufactured in the same size as the upper substrate of the panel. As a result, there is not enough space to form the ground plane 72 and the black layer 90, which reduces the area of the ground plane 72 and aligns the alignment between the film type front filter 70 and the upper substrate of the panel. This is a difficult drawback.

Accordingly, an object of the present invention is to provide a plasma display panel capable of increasing the ground area of a film type front filter.

In order to achieve the above object, a plasma display panel according to an embodiment of the present invention is formed on an upper substrate, a lower substrate bonded to the upper substrate by a sealing agent, and a black for defining an effective display area. And a layer.

The plasma display panel further includes a film type front filter disposed on the upper substrate and a ground plane formed at an edge of the front filter.

In the plasma display panel, the black layer is formed between an end of the effective display area and the sealing agent.

In the plasma display panel, the black layer is formed on upper and lower sides and left and right edge regions of the upper substrate.

In the plasma display panel, the black layer is formed between an end of the effective display area and an end of the upper substrate.

In the plasma display panel, the black layer is formed on upper and lower sides and left and right edge regions of the upper substrate.

In the plasma display panel, the black layer is overlapped with the sealing agent.

In the plasma display panel, the black layer is formed between the sealing agent from the upper and lower ends of the effective display area.

In the plasma display panel, the black layer is formed between an upper end and an lower end of the effective display area from an end of the upper substrate.

In the plasma display panel, the black layer is overlapped with the sealing agent.

In the plasma display panel, the black layer is formed between the sealing agent from the left and right ends of the effective display area.

In the plasma display panel, the black layer is formed between an end of the left and right sides of the effective display area from an end of the upper substrate.

In the plasma display panel, the black layer is overlapped with the sealing agent.

Other objects and features of the present invention in addition to the above object will be apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 7 to 14.

7 and 8, a plasma display panel (hereinafter referred to as "PDP") according to the first embodiment of the present invention is formed on the effective display area A / A of the panel 100. A plurality of discharge cells, a sealing agent 140 formed at an edge between the upper substrate 110 and the lower substrate 118 to bond the upper substrate 110 and the lower substrate 118, and an effective display area. The black layer 160 formed between the end of (A / A) and the sealing agent 140 is provided.

Each of the plurality of discharge cells includes a scan electrode and a sustain electrode (not shown) formed on the upper substrate 110, and an address electrode (not shown) formed on the lower substrate 118. Each of the scan electrode and the sustain electrode includes a transparent electrode and a metal bus electrode having a line width smaller than that of the transparent electrode and formed at one edge of the transparent electrode.

The transparent electrode is typically formed on the upper substrate 110 by indium tin oxide (ITO). The metal bus electrode is formed of a metal such as chromium (Cr) on the transparent electrode to reduce the voltage drop caused by the transparent electrode having a high resistance. An upper dielectric layer and a passivation layer are stacked on the upper substrate 110 having the scan electrode and the sustain electrode side by side. Wall charges generated during plasma discharge are accumulated in the upper dielectric layer. The protective film prevents damage to the upper dielectric layer due to sputtering generated during plasma discharge and increases emission efficiency of secondary electrons. Magnesium oxide (MgO) is usually used as a protective film.

The lower dielectric layer and the partition wall are formed on the lower substrate 118 on which the address electrode is formed, and the phosphor layer is coated on the lower dielectric layer and the partition wall surface. The address electrode is formed in a direction crossing the scan electrode and the sustain electrode. The partition wall is formed in a stripe or lattice form to prevent the ultraviolet rays and the visible light generated by the discharge from leaking to the adjacent discharge cells. The phosphor layer is excited by ultraviolet rays generated during plasma discharge to generate visible light of any one of red, green, and blue.

The upper substrate 110 and the lower substrate 118 are bonded by the sealing agent 140 formed in the edge region and inertly mixed in the discharge space provided between the upper and lower substrates 110 and 118 and the partition wall to be bonded. Gas is injected.

The sealing agent 140 is formed on the edge of any one of the upper substrate 110 and the lower substrate 118 to bond the upper substrate 110 and the lower substrate 118.

The black layer 160 is formed on the rear surface of the upper substrate 110 by using a non-conductive paste. That is, the black layer 160 is formed between the end of the effective display area A / A and the sealing agent 140 (from the effective display area A / A to the front portion where the sealing agent 140 is applied). . The black layer 160 defines an effective display area A / A of the panel and obscures unnecessary portions of the edge portion of the PDP module.

On the upper substrate 110 of the PDP, a film type front filter 130 is installed as shown in FIG. 8 to shield electromagnetic waves and prevent reflection of external light.

The film type front filter 130 has the same size as the upper substrate 110 of the panel 100 and includes an antireflection film, an optical characteristic film, an EMI shielding film, and an NIR shielding film (not shown). Here, an adhesive layer (not shown) is formed between the films of the film type front filter 130 to bond the films. In addition, the film type front filter 130 includes a ground plane 172 formed at an edge region of the anti-reflective film.

The antireflection film is formed on the surface of the film type front filter 130 to prevent the light incident from the outside from being reflected back to the outside. Such an antireflection film may be further formed on the rear surface of the film type front filter 130. The optical characteristic film improves the optical characteristics of the PDP by decreasing the transmittance of red (R) and green (G) and increasing the transmittance of blue (B) among the light incident from the panel. The EMI shield shields the EMI to prevent the EMI incident from the panel from being emitted to the outside. The NIR shielding film shields the NIR incident from the panel. The NIR shielding film prevents the NIR above the reference from being emitted to the outside so that the signals transmitted from the remote controller to the panel can be normally transmitted. On the other hand, the optical characteristic film and the NIR shielding film may be composed of one layer.

The ground plane 172 is electrically connected to the back cover of the PDP, not shown, through a filter support, not shown.

As such, in the PDP according to the first embodiment of the present invention, since the black layer is formed on the upper substrate 110 of the panel 100 as in the prior art, only the ground plane 172 is formed on the film type front filter 130. do. For this reason, the PDP according to the first embodiment of the present invention increases the area of the ground plane 172 formed in the edge region of the film type front filter 130 than the conventional one, thereby reducing the contact resistance. In addition, in the PDP according to the first embodiment of the present invention, since the space for forming the ground plane 172 on the film type front filter is increased, the process is simplified and the process time is shortened.

9 and 10, a PDP according to a second embodiment of the present invention includes a plurality of discharge cells formed on an effective display area A / A of the panel 200, an upper substrate 210, and a plurality of discharge cells. A sealing agent 240 formed at an edge between the lower substrate 218 to bond the upper substrate 210 and the lower substrate 218 to the end of the effective display area A / A and the upper substrate 210. A black layer 260 is formed between the ends.

Each of the plurality of discharge cells includes a scan electrode and a sustain electrode (not shown) formed on the upper substrate 210, and an address electrode (not shown) formed on the lower substrate 218. Each of the scan electrode and the sustain electrode includes a transparent electrode and a metal bus electrode having a line width smaller than that of the transparent electrode and formed at one edge of the transparent electrode.

The transparent electrode is typically formed on the upper substrate 210 of indium tin oxide (ITO). The metal bus electrode is formed of a metal such as chromium (Cr) on the transparent electrode to reduce the voltage drop caused by the transparent electrode having a high resistance. An upper dielectric layer and a passivation layer are stacked on the upper substrate 210 having the scan electrode and the sustain electrode side by side. Wall charges generated during plasma discharge are accumulated in the upper dielectric layer. The protective film prevents damage to the upper dielectric layer due to sputtering generated during plasma discharge and increases emission efficiency of secondary electrons. Magnesium oxide (MgO) is usually used as a protective film.

The lower dielectric layer and the partition wall are formed on the lower substrate 218 on which the address electrode is formed, and the phosphor layer is coated on the lower dielectric layer and the partition wall surface. The address electrode is formed in a direction crossing the scan electrode and the sustain electrode. The partition wall is formed in a stripe or lattice form to prevent the ultraviolet rays and the visible light generated by the discharge from leaking to the adjacent discharge cells. The phosphor layer is excited by ultraviolet rays generated during plasma discharge to generate visible light of any one of red, green, and blue.

The upper substrate 210 and the lower substrate 218 are bonded by the sealing agent 240 formed in the edge region and inertly mixed in the discharge space provided between the upper / lower substrates 210 and 218 and the partition wall. Gas is injected.

The sealing agent 240 is formed at the edge of any one of the upper substrate 210 and the lower substrate 218 to bond the upper substrate 210 and the lower substrate 218.

The black layer 260 is formed on the rear surface of the upper substrate 210 using a nonconductive paste. That is, the black layer 260 is formed at the end of the effective display area A / A to the end of the upper substrate 210 (from the effective display area A / A to the portion where the sealing agent 140 is applied). The sealing agent 240 is covered. The black layer 260 defines an effective display area A / A of the panel and obscures unnecessary portions of the edge portion of the PDP module.

On the upper substrate 210 of the PDP, a film type front filter 230 is installed as shown in FIG. 10 to shield electromagnetic waves and prevent reflection of external light.

The film type front filter 230 has the same size as the upper substrate 210 of the panel 200 and includes an antireflection film, an optical characteristic film, an EMI shielding film, and an NIR shielding film (not shown). Each of the antireflection film, the optical characteristic film, the EMI shielding film, and the NIR shielding films constituting the film type front filter 230 will be replaced with the description of the PDP according to the first embodiment of the present invention.

The ground plane 272 is formed at the edge of the antireflection film of the film type front filter 230. This ground plane 272 is electrically connected to the back cover of the PDP, not shown, through a filter support, not shown.

As described above, in the PDP according to the second embodiment of the present invention, since the black layer is formed on the upper substrate 210 of the panel 200, only the ground plane 272 is formed on the film type front filter 230. do. For this reason, the PDP according to the second embodiment of the present invention increases the area of the ground plane 272 formed in the edge region of the film type front filter 230 to reduce the contact resistance. In addition, in the PDP according to the second embodiment of the present invention, since the space for forming the ground plane 272 is increased, the process is simplified and the process time is shortened.

Meanwhile, referring to FIG. 11, other components except for the black layer 360 in the PDP according to the third embodiment of the present invention are the same as the PDP according to the first embodiment of the present invention shown in FIGS. 7 and 8. do. Therefore, in the PDP according to the third embodiment of the present invention, descriptions of the other components except for the black layer 360 will be replaced with the description of the PDP according to the first embodiment of the present invention.

The black layer 360 is formed side by side on the upper and lower edges of the rear surface of the upper substrate by using a non-conductive paste. That is, the black layer 360 is formed between the upper and lower ends of the effective display area A / A and the sealing agent 340 (the front of which the sealing agent 340 is applied from the end of the upper effective display area A / A). Up to a part). The black layer 360 defines an effective display area A / A of the panel 300 and at the same time obscures unnecessary portions of the edge portion of the PDP module.

As described above, the PDP according to the third embodiment of the present invention increases the area of the ground plane formed in the edge region of the film type front filter to reduce the contact resistance. In addition, in the PDP according to the third embodiment of the present invention, since the space for forming the ground plane on the film type front filter increases, the process is simplified and the process time is shortened.

On the other hand, referring to Figure 12 other components except for the black layer 460 in the PDP according to the fourth embodiment of the present invention and the PDP according to the second embodiment of the present invention shown in Figs. Will be the same. Therefore, in the PDP according to the fourth embodiment of the present invention, descriptions of the other components except for the black layer 460 will be replaced with the description of the PDP according to the second embodiment of the present invention.

The black layer 460 is formed side by side on the upper and lower edges of the rear surface of the upper substrate by using a non-conductive paste. That is, the black layer 460 is formed at the end of the effective display area A / A to the end of the upper substrate (from the effective display area A / A to the portion where the sealing agent 440 is applied) to form a sealing agent ( 440). The black layer 460 defines an effective display area A / A of the panel 400 and obscures unnecessary portions of the edge portion of the PDP module.

As described above, the PDP according to the fourth embodiment of the present invention reduces the contact resistance by increasing the area of the ground plane formed in the edge region of the film type front filter. In addition, in the PDP according to the fourth embodiment of the present invention, since the space for forming the ground plane on the film type front filter increases, the process is simplified and the process time is shortened.

Meanwhile, referring to FIG. 13, other components except for the black layer 560 in the PDP according to the fifth embodiment of the present invention may include the PDP according to the first embodiment of the present invention shown in FIGS. 7 and 8. Will be the same. Therefore, in the PDP according to the fifth embodiment of the present invention, descriptions of the other components except for the black layer 560 will be replaced with the description of the PDP according to the first embodiment of the present invention.

The black layer 560 is formed side by side on the left and right edges of the rear surface of the upper substrate by using a non-conductive paste. That is, the black layer 560 is disposed between the left and right ends of the effective display area A / A and the sealing agent 540 (the front of which the sealing agent 540 is applied from the end of the upper effective display area A / A). Up to a part). The black layer 560 defines an effective display area (A / A) of the panel 500 and at the same time obscures unnecessary portions of the edge portion of the PDP module.

As described above, the PDP according to the fifth embodiment of the present invention increases the area of the ground plane formed in the edge region of the film type front filter, thereby reducing the contact resistance. In addition, in the PDP according to the fifth embodiment of the present invention, since the space for forming the ground plane on the film type front filter increases, the process is simplified and the process time is shortened.

On the other hand, referring to FIG. 14, other components except for the black layer 660 in the PDP according to the sixth embodiment of the present invention are PDPs according to the second embodiment of the present invention shown in FIGS. 9 and 10. Becomes the same as Therefore, in the PDP according to the sixth embodiment of the present invention, descriptions of the other components except for the black layer 660 will be replaced with the description of the PDP according to the second embodiment of the present invention.

The black layer 660 is formed side by side on the left and right edges of the rear surface of the upper substrate by using a non-conductive paste. That is, the black layer 660 is formed at the end of the effective display area A / A to the end of the upper substrate (from the effective display area A / A to the portion where the sealing agent 640 is applied) to form a sealing agent ( 640). The black layer 660 defines an effective display area A / A of the panel 600 and at the same time obscures unnecessary portions of the edge portion of the PDP module.

As described above, the PDP according to the sixth embodiment of the present invention increases the area of the ground plane formed in the edge region of the film type front filter to reduce the contact resistance. In addition, in the PDP according to the sixth embodiment of the present invention, since the space for forming the ground plane on the film type front filter increases, the process is simplified and the process time is shortened.

As described above, the plasma display panel according to the embodiment of the present invention includes a black layer formed on the upper substrate in order to define an effective display area of the panel and to cover an unnecessary portion of the edge portion of the plasma display panel module. Accordingly, the present invention can increase the area of the ground plane formed in the edge region of the film type front filter than in the prior art. Therefore, in the present invention, since the space for forming the ground plane on the film type front filter increases, the process is simplified and the process time is shortened.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

1 is a perspective view showing a discharge cell structure of a conventional three-electrode AC surface discharge type plasma display panel.

2 is a diagram illustrating a frame for expressing 256 gray levels in a typical plasma display panel.

3 is a cross-sectional view schematically showing one side of a conventional plasma display.

4 is a cross-sectional view schematically showing the front filter shown in FIG.

5 is a view showing in detail the grounding process of the front filter and the filter support shown in FIG.

Figure 6 is a perspective view schematically showing a film type front filter.

7 is a plan view illustrating a plasma display panel according to a first embodiment of the present invention.

8 is a cross-sectional view taken along the line II ′ of FIG. 7.

9 is a plan view illustrating a plasma display panel according to a second embodiment of the present invention.

FIG. 10 is a cross-sectional view taken along the line II-II ′ of FIG. 9.

11 is a plan view illustrating a plasma display panel according to a third embodiment of the present invention.

12 is a plan view illustrating a plasma display panel according to a fourth embodiment of the present invention.

13 is a plan view illustrating a plasma display panel according to a fifth embodiment of the present invention.

14 is a plan view illustrating a plasma display panel according to a sixth embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10, 110, 210: upper substrate 12Y, 12Z: transparent electrode

13Y, 13Z: bus electrodes 14, 22: dielectric layer

16: protective film 18, 118, 218: lower substrate

24: partition 26: phosphor layer

30, 70, 130, 230: Front filter 32,100,200,300,400,500,600: Panel

34: heat sink 36: printed circuit board

38 back cover 40 filter support

42: support member 50, 80: antireflective film

52, 82: optical film 54: glass

56, 86 EMI shielding film 58, 88 NIR shielding film

72, 172, 272: ground plane 140, 240, 304, 440, 540, 640: sealing agent

60,90,160,260,360,460,560,660: black layer

Claims (13)

An upper substrate; A lower substrate bonded to the upper substrate by a sealing agent; A black layer formed on the upper substrate overlapping the sealing agent to define an effective display area; A film type front filter disposed on the front surface of the upper substrate; And a ground plane formed at an edge of the front filter overlapping the black layer and the sealing agent. delete The method of claim 1, And the black layer overlaps a part of the sealing agent. The method of claim 1, And the black layer is formed on upper and lower sides and left and right edge regions of the upper substrate. The method of claim 4, wherein And the black layer is formed between an end of the effective display area and an end of the upper substrate. delete delete The method of claim 1, And the black layer is formed in upper and lower edge regions of the upper substrate. The method of claim 8, And the black layer is formed between an upper end and an lower end of the effective display area from an end of the upper substrate. delete The method of claim 1, And the black layer is formed at left and right edges of the upper substrate. The method of claim 11, And the black layer is formed between ends of the upper substrate from ends of the left and right sides of the effective display area. delete