KR20100116473A - Plasma display panel device - Google Patents

Abstract

PURPOSE: A plasma display device is provided to prevent crack of a pad region or outside of a plasma display panel by arranging a heat distribution unit to distribute heat between a plurality of pad electrodes of a connection member. CONSTITUTION: A plurality of electrodes are formed on a plasma display panel(200). A bezel surrounds an outer side(P2) of a plasma display panel. The heat distribution unit is arranged on the outer side between the plasma display panel and the bezel. A connection unit includes a plurality of pad electrodes electrically connected to the plurality of electrodes.

Description

Plasma display panel device

The present invention relates to a plasma display device, and more particularly, to a plasma display device which is easy to disperse heat generated in a connection member in electrical contact with a plurality of electrodes formed on the plasma display panel when the plasma display panel is driven. .

In general, a plasma display apparatus includes a plasma display panel in which a partition wall formed between an upper substrate and a lower substrate forms one discharge cell, and each discharge cell includes neon, helium, or a mixture of neon and helium. A main discharge gas such as (Ne + He) and an inert gas containing a small amount of xenon are filled. When discharged by a high frequency voltage, the inert gas generates vacuum ultraviolet rays and emits phosphors formed between the partition walls to realize an image. Such a plasma display panel has a spotlight as a next generation display device because a thin and light configuration is possible.

The plasma display apparatus includes an active region in which an image is realized and a pad region surrounding the active region, and includes a pad electrode in electrical contact with a plurality of electrodes formed on the plasma display panel in the pad region to supply a driving signal. Member.

In recent years, when a plasma display apparatus is driven, heat is generated in a region where a plurality of electrodes and a pad electrode are in contact with each other on a pad region, and a crack is generated in the plasma display panel.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plasma display device which can easily disperse heat generated in a connection member electrically contacting a plurality of electrodes formed on a plasma display panel when a plasma display panel is driven.

A plasma display device according to a first embodiment of the present invention includes a plasma display panel having a plurality of electrodes, a bezel surrounding an outer portion of the plasma display panel, and heat dissipation disposed at the outer portion between the plasma display panel and the bezel. Member.

In the plasma display apparatus according to the second embodiment of the present invention, a plasma display panel having a plurality of electrodes formed in an effective region and a pad region outside the effective region, a bezel surrounding the pad region, and between the plasma display panel and the bezel And a heat dispersing member disposed on the front and back surfaces of the pad region of the substrate.

A plasma display apparatus according to a third embodiment of the present invention includes a plasma display panel in which an upper substrate and a lower substrate on which a plurality of electrodes are formed are adhered to each other, A connecting member including a pad electrode, and a bezel surrounding the upper substrate including the first region, wherein the connecting member is stacked on the plurality of pad electrodes except for the first region on the back surface of the upper substrate And a heat dissipation member.

Plasma display device of the present invention, by driving the plasma display panel, by arranging a heat dissipation member for dispersing heat generated between the plurality of electrodes formed on the plasma display panel and the plurality of pad electrodes of the connection member in electrical contact, It is possible to prevent cracks in the outside of the display panel or in the pad area.

In addition, by disposing the heat dissipation member, it is possible to prevent the deterioration of the image quality of the heat when the image is implemented by dispersing the heat generated in the outside of the plasma display panel or the pad area.

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

1 is a perspective view illustrating a structure of a plasma display panel according to a first embodiment of the present invention.

Referring to FIG. 1, the plasma display panel includes a scan electrode 11, a sustain electrode 12, a sustain electrode pair formed on the upper substrate 10, and an address electrode 22 formed on the lower substrate 20. It includes.

The sustain electrode pairs 11 and 12 generally include transparent electrodes 11a and 12a and bus electrodes 11b and 12b formed of indium tin oxide (ITO), and the bus electrodes 11b and 12b. ) May be formed of a metal such as silver (Ag), chromium (Cr) or a stack of chromium / copper / chromium (Cr / Cu / Cr) or a stack of chromium / aluminum / chromium (Cr / Al / Cr). The bus electrodes 11b and 12b are formed on the transparent electrodes 11a and 12a to serve to reduce voltage drop caused by the transparent electrodes 11a and 12a having high resistance.

Meanwhile, according to the first embodiment of the present invention, the sustain electrode pairs 11 and 12 have not only a structure in which the transparent electrodes 11a 12a and the bus electrodes 11b and 12b are stacked, but also without the transparent electrodes 11a and 12a. Only the bus electrodes 11b and 12b may be constituted. This structure does not use the transparent electrodes (11a, 12a), there is an advantage that can lower the cost of manufacturing the panel. The bus electrodes 11b and 12b used in this structure may be various materials such as photosensitive materials in addition to the materials listed above.

Light between the scan electrodes 11 and the sustain electrodes 12 between the transparent electrodes 11a and 12a and the bus electrodes 11b and 11c to absorb external light generated outside the upper substrate 10 to reduce reflection. A black matrix (BM, 15) is arranged that functions to block and to improve the purity and contrast of the upper substrate 10.

The black matrix 15 according to the first embodiment of the present invention is formed on the upper substrate 10. The first black matrix 15 and the transparent electrodes 11a and 12a are formed at positions overlapping the partition wall 21. ) And second black matrices 11c and 12c formed between the bus electrodes 11b and 12b. Here, the first black matrix 15 and the second black matrices 11c and 12c, also referred to as black layers or black electrode layers, may be simultaneously formed and physically connected in the formation process, and may not be simultaneously formed and thus not physically connected. .

In addition, when physically connected and formed, the first black matrix 15 and the second black matrix 11c and 12c may be formed of the same material, but may be formed of different materials when they are physically separated.

The upper dielectric layer 13 and the passivation layer 14 are stacked on the upper substrate 10 having the scan electrode 11 and the sustain electrode 12 side by side. Charged particles generated by the discharge are accumulated in the upper dielectric layer 13, and the protective electrode pairs 11 and 12 may be protected. The protective film 14 protects the upper dielectric layer 13 from sputtering of charged particles generated during gas discharge, and increases emission efficiency of secondary electrons.

In addition, magnesium oxide (MgO) may be generally used for the protective film 14, and Si-MgO to which silicon (Si) is added may be used.

Here, the content of silicon (Si) added to the protective film 14 may be 60PPM to 200PPM based on the weight percent.

On the other hand, the address electrode 22 is formed in the direction crossing the scan electrode 11 and the sustain electrode 12. In addition, the lower dielectric layer 23 and the partition wall 21 are formed on the lower substrate 20 on which the address electrode 22 is formed.

In addition, the phosphor layer 23 is formed on the surfaces of the lower dielectric layer 24 and the partition wall 21. The partition wall 21 has a vertical partition wall 21a and a horizontal partition wall 21b formed in a closed shape, and physically distinguishes discharge cells, and prevents ultraviolet rays and visible light generated by the discharge from leaking into adjacent discharge cells.

In the first embodiment of the present invention, not only the structure of the partition wall 21 shown in FIG. 1 but also the structure of the partition wall 21 having various shapes may be possible. For example, a channel in which a channel usable as an exhaust passage is formed in at least one of the differential partition structure, the vertical partition 21a, or the horizontal partition 21b having different heights of the vertical partition 21a and the horizontal partition 21b. A grooved partition structure having a groove formed in at least one of the type partition wall structure, the vertical partition wall 21a, or the horizontal partition wall 21b may be possible.

Here, in the case of the differential partition wall structure, the height of the horizontal partition wall 21b is more preferable, and in the case of the channel partition wall structure or the groove partition wall structure, it is preferable that a channel is formed or the groove is formed in the horizontal partition wall 21b. something to do.

Meanwhile, in the first embodiment of the present invention, although each of the R, G, and B discharge cells is shown and described as being arranged on the same line, it may be arranged in other shapes. For example, a Delta type arrangement in which R, G, and B discharge cells are arranged in a triangular shape may be possible. In addition, the shape of the discharge cell may be not only rectangular, but also various polygonal shapes such as a pentagon and a hexagon.

In addition, the phosphor layer 23 emits light by ultraviolet rays generated during gas discharge to generate visible light of any one of red (R), green (G), and blue (B). Here, an inert mixed gas such as He + Xe, Ne + Xe and He + Ne + Xe for discharging is injected into the discharge space provided between the upper / lower substrates 10 and 20 and the partition wall 21.

2 is a perspective view schematically showing a structure of a plasma display device according to a first embodiment of the present invention.

Referring to FIG. 2, the plasma display apparatus may include a plasma display panel 200, a heat sink 210, a filter 220, a back cover 230, and a bezel 240.

The heat sink 210 is installed on the rear surface of the plasma display panel 200 to emit heat generated in the plasma display panel 200.

In addition, the heat sink 210 has a printed circuit board (hereinafter referred to as a "PCB") is mounted on the back mounting the drive unit for driving the plasma display panel 200, the PCB is fixed to the heat sink 210 do.

That is, the PCB is connected to a plurality of driving integrated circuits (Driving ICs) for supplying a driving signal to the plasma display panel 200, and the PCB and the plasma display panel 200. May be connected by a connecting member, ie, a flexible printed circuit (hereinafter, referred to as “FPC”).

 The filter 120 is installed in front of the plasma display panel 200 to shield electromagnetic interference (hereinafter referred to as EMI) and to prevent reflection of external light.

The back cover 230 surrounds the rear surface of the plasma display panel 200, and the bezel 240 assembled with the back cover 230 protrudes in front of the device to surround a portion of the edge of the filter 220. 220).

In the present exemplary embodiment, the plasma display apparatus includes the filter 220, but the filter 220 may not be formed.

That is, an electromagnetic interference pattern may be formed on the plasma display panel 200 to act as a filter 220 to shield electromagnetic interference.

3 is a plan view showing a front surface of the plasma display panel shown in Fig.

3, the plasma display panel 200 includes an upper substrate 205 and a lower substrate 207 on which a plurality of electrodes (not shown) are formed.

In this case, the plasma display panel 200 includes an effective area P1 in which an image is implemented and an area P2 except for the effective area P1.

In the present embodiment, since the outer portion P2 includes the pad region P2, the outer portion P2 and the pad region P2 will be described in the following description.

Here, the pad region P2 is a portion covered by the bezel (not shown), and a plurality of pad electrodes (not shown) and a plurality of pad electrodes (not shown) formed on the upper substrate 205. Not shown) is in electrical contact with the first region (not shown).

In this case, although the pad region P2 is formed on the left and right outer edges of the upper substrate 205, the pad area P2 may be formed on the upper and lower outer edges of the upper substrate 205 and is not limited thereto.

The heat dissipation member A, which is covered by the bezel, is disposed on either one of the front and rear surfaces of the pad region P2.

Here, the heat dissipation member A has been described as being disposed on the front surface of the pad region P2, but may be stacked on the back surface of the pad region P2.

The heat dispersing member (A) includes graphite, aluminum or the graphite, and the bonding material to which the aluminum is bonded.

That is, since the heat dispersing member A can disperse heat generated in the pad region A according to the driving signal when the plasma display panel is driven, the heat dispersing member A can generate heat in the edge portion of the upper substrate 205 Cracks can be prevented.

4 is a cross-sectional view illustrating a first embodiment of a pad area according to the plasma display device of FIG. 3.

4, the plasma display apparatus includes a plasma display panel 200 in which an upper substrate 205 and a lower substrate 207 are bonded together, a pad electrode 250 of a connecting member (not shown), a heat dispersing member 270 And a bezel 240.

A plurality of electrodes 202 are formed on the upper substrate 205 and barrier ribs 209 are formed on the lower substrate 207.

The pad electrode 250 is in electrical contact with the electrode 202 in the first region C included in the pad region P2, and supplies a driving signal generated from a printed circuit board (not shown) to the electrode 202. do.

A UV curing agent 260 is formed on the contact surface between the pad electrode 250 and the electrode 202 to prevent corrosion of the pad electrode 250 and the electrode 202.

The bezel 240 covers the upper substrate 205, and the heat dissipation member 270 is disposed between the upper substrate 205 and the bezel 240.

Here, the heat dissipation member 270 is disposed to overlap the pad electrode 250 including the first region C, and is formed from the end of the pad electrode 250 to the end of the upper substrate 205. have.

That is, when the driving signal is supplied from the pad electrode 250 to the electrode 202 and the plasma display panel 200 is driven, the heat dissipating member 270 is electrically connected to the first region of the electrode 202 and the pad electrode 250, Disperse the heat generated in (C).

The heat dissipating member 270 can dissipate the heat generated at the contact portion between the electrode 202 and the pad electrode 250 to the entire pad region P2 so that the crack generated in a part of the upper substrate 205 (crack) can be prevented.

In addition, the heat dissipation member 270 has been described as being formed in the entire pad region P2 as a single type, but may be formed so as to overlap only a portion of the pad region P2, that is, the first region C.

Therefore, the plasma display apparatus of the present invention has the advantage of dispersing heat to prevent cracking and deterioration of image quality caused by heat by disposing the heat dissipation member 270 in the heat generated in the pad region P2.

FIG. 5 is a cross-sectional view showing a second embodiment of the pad area according to the plasma display device shown in FIG. 3, and FIG. 6 is a cross-sectional view showing a third embodiment of the pad area according to the plasma display device shown in FIG.

5 and 6 will not be described for the overlapping portion of FIG.

Referring to FIG. 5, in the plasma display apparatus, in the pad region P2, the heat dissipation member 270 may be disposed in a region except for the first region C in which the electrode 202 and the pad electrode 260 are electrically contacted. Is placed.

That is, the heat dissipation member 270 is disposed on the rear surface of the upper substrate 205 and is disposed to be stacked with the connection member 250.

Here, the heat dissipation member 270 may be stacked on the pad electrode 250 included in the connection member (not shown), and may be integrally formed with the connection member.

The width of the heat dispersing member 270 may be less than or equal to the width from the end of the electrode 202 to the end of the upper substrate 205.

Referring to FIG. 6, the plasma display apparatus is disposed in the first heat dissipation member 272 disposed in the front pad region P2 of the upper substrate 205 and in the back pad region P2 of the upper substrate 205. The heat dissipation member 270 including the second heat dissipation member 274 is disposed.

Here, the first heat dissipation member 272 is disposed in the pad region P2 such that the first heat dissipation member 272 overlaps the pad electrode 250 including the first region C in contact with the electrode 202 and the pad electrode 250. The second heat dissipating member 274 is disposed in the pad region P2 except for the first region C. [

The width of the first heat dissipation member 272 may be less than or equal to the width from the end of the bezel 280 to the end of the upper substrate 205, and the width of the second heat dissipation member 274 may be defined as an electrode ( It may be formed to be less than or equal to the width from the end of the 202 to the end of the upper substrate 205.

Although a preferred embodiment of the present invention has been described in detail above, those skilled in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made. Accordingly, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

1 is a perspective view illustrating a structure of a plasma display panel according to a first embodiment of the present invention.

2 is a perspective view schematically showing a structure of a plasma display device according to a first embodiment of the present invention.

3 is a plan view showing a front surface of the plasma display panel shown in Fig.

4 is a cross-sectional view illustrating a first embodiment of a pad area according to the plasma display device of FIG. 3.

FIG. 5 is a cross-sectional view of a second exemplary embodiment of a pad area according to the plasma display device of FIG. 3.

FIG. 6 is a cross-sectional view illustrating a third exemplary embodiment of a pad area according to the plasma display device of FIG. 3.

Claims (11)

A plasma display panel having a plurality of electrodes formed thereon; A bezel surrounding the outer edge of the plasma display panel; And And a heat dissipation member disposed at the outer portion between the plasma display panel and the bezel. The heat sink according to claim 1, Wherein the first electrode is disposed on at least one of the outer frame portions. The method of claim 1, In the first region of the outer portion, further comprising a connecting member including a plurality of pad electrodes in electrical contact with the plurality of electrodes, The heat dissipation member, And a first region including the first region to overlap each other. The heat sink according to claim 1, Graphite, aluminum or the graphite, and the bonding material to which the aluminum is bonded. A plasma display panel having a plurality of electrodes formed in the effective area and a pad area outside the effective area; A bezel surrounding the pad area; And And a heat dispersing member disposed on a front surface and a rear surface of the pad region between the plasma display panel and the bezel. The method of claim 5, And a connecting member including a plurality of pad electrodes electrically in contact with the plurality of electrodes in a first region on the back surface of the pad region, The heat dissipation member, A first heat dissipation member disposed on the front surface of the pad area to overlap the first area; And And a second heat dispersing member disposed on the plurality of pad electrodes not including the first region on the back surface of the pad region. The heat sink according to claim 6, wherein a width of the first heat dispersing member And a width greater than the width of the second heat dissipation member. The method of claim 6, wherein the width of the first heat dissipation member, And a width smaller than a width from an end of the bezel to an end of the plasma display panel. 7. The heat sink according to claim 6, wherein the width of the second heat dispersing member And a width smaller than a width from an end of the plurality of electrodes to an end of the plasma display panel. 6. The heat sink according to claim 5, Graphite, aluminum or the graphite, and the bonding material to which the aluminum is bonded. A plasma display panel having an upper substrate and a lower substrate on which a plurality of electrodes are formed, a connecting member including a plurality of pad electrodes in electrical contact with the plurality of electrodes in a first region of the upper substrate, and the first region And a bezel surrounding the upper substrate, The connecting member, And a heat dispersing member laminated on the plurality of pad electrodes except for the first region on the back surface of the upper substrate.

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