KR20110035019A - Plasma display panel device - Google Patents

Abstract

PURPOSE: A plasma display panel device is provided to reduce the EMI of voltage or current by forming a first connection electrode on a first surface and a second connection electrode on the first surface and a second surface. CONSTITUTION: A PCB(Printed Circuit Board) includes a driving circuit for generating driving voltage supplied to first and second electrodes. A connection unit(79) is connected to the PCB and the plasma display panel. The connection unit supplies the driving voltage generated from the driving circuit to the first and second electrodes. The connection unit includes the first and second connection electrodes(Z_pad,Y_pad) respectively connected to the first and second electrodes. The first connection electrode includes a first sub electrode(Z_1), a second sub electrode(Z_2), a third sub electrode(Z_3), a fourth sub electrode(Z_4) and a fifth sub electrode(Z_5) on a first surface(S1).

Description

Plasma display panel device

The present invention relates to a plasma display device, and more particularly, to a plasma display device having an improved structure of a connection electrode included in a connection member connecting first and second electrodes formed on a plasma display panel to a printed circuit board.

In general, a plasma display device (hereinafter referred to as a “PDP”) is a flat panel display device that displays an image using plasma discharge, and has a high response speed and is suitable for displaying a large area image. And indoor / outdoor advertising displays.

In the plasma display apparatus, first and second electrodes formed on the effective area of the upper substrate and a third electrode intersecting the first and second electrodes are formed on the lower substrate, and one partition wall is formed between the upper substrate and the lower substrate. And a plasma display panel constituting a discharge cell of which contains a main discharge gas such as neon (Ne), helium (He), or a mixture of neon and helium (Ne + He) and a small amount of xenon. Inert gas is 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.

Recently, in order to implement the first and second electrodes of the plasma display panel in the form of a single side electrode, the structure of the connection electrode included in the printed circuit board on which the driving circuit is mounted and the connection member which is easy to connect the first and second electrodes. Research is underway to improve this.

An object of the present invention is to improve the structure of the connection electrode included in the connection member for connecting the first and second electrodes and the printed circuit board formed in the form of a single side electrode on the plasma display panel.

A plasma display device according to the present invention comprises: a plasma display panel having first and second electrodes formed thereon; A printed circuit board on which a driving circuit for generating a driving voltage supplied to the first and second electrodes is mounted; And a connecting member connected to the printed circuit board and the plasma display panel and supplying a driving voltage generated in the driving circuit to the first and second electrodes, wherein the connecting member is connected to the first and second electrodes. A first sub-electrode connected to the first electrode on a first surface of a predetermined layer layer, and the predetermined layer layer on the first surface, respectively; A second sub electrode connected to a printed circuit board, a third sub electrode formed on a second surface of the predetermined layer layer, a fourth sub electrode connecting the first and third sub electrodes, and the second and third sub electrodes. And a fifth sub-electrode for connecting.

In the plasma display device of the present invention, a first connection electrode of a connection member for electrically connecting the first and second electrodes formed in the form of a single side electrode and the printed circuit board on which the driving circuit for generating the driving voltage is mounted is formed on the first surface. And the second connection electrodes are formed on the first and second surfaces, thereby reducing attenuation, noise and EMI of the voltage or current while the respective driving voltages are supplied, and on the first and second surfaces. By changing the electrode patterns of the first and second connection electrodes, there is an advantage that the overall size of the connection member can be reduced.

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 showing the structure of a plasma display device according to a first embodiment of the present invention, Figure 2 is a rear view showing a module of the plasma display device according to a first embodiment of the present invention.

1 and 2, the present plasma display apparatus includes a plasma display panel 100 and a plasma display panel 100 that are filled with an inert mixed gas and emit visible light by electrons emitted when an electric current is applied. A heat sink 30 attached to the rear surface of the substrate, a printed circuit board 40 installed on the back surface of the heat sink 30, and a case 50 covering the edge of the plasma display panel 100 and the heat sink 30. do.

Here, the plasma display panel 100 includes an upper substrate 10 exposed to a user, a lower substrate 20 disposed behind the upper substrate 10 and bonded to the upper substrate 10, and upper and lower substrates ( 10, 20) includes an inert mixed gas filled therein.

In addition, at least one scan electrode (not shown), at least one sustain electrode (not shown) facing the scan electrodes, and at least one scan electrode may be formed in the plasma display panel 100. One address electrode (not shown) is applied to the inside of the plasma display panel 100 to generate a visible light by discharge when a current is applied between the scan electrodes and the address electrode (not shown) It includes.

The plasma display apparatus includes a plasma display panel 100, a heat sink 30, and a printed circuit board 40 to configure a module, and a case 50 is installed to surround the outside of the module.

The heat sink 30 is installed on the rear surface of the plasma display panel 100 to support the plasma display panel 100 and absorb and release heat generated from the plasma display panel 100.

In addition, a printed circuit board 40 for applying a current to the plasma display panel 100 is provided on the rear surface of the heat sink 30.

Here, the printed circuit board 40 is mounted with a driving circuit for applying a voltage and a current to the scan electrode, the sustain electrode and the address electrode.

That is, the printed circuit board 40 applies a current to the data driver board 60 for applying current to the address electrode of the plasma display panel 100, and to the scan electrode and the sustain electrode of the plasma display panel 100. A scan / sustain board 70, a data driver board 60, a main controller 80 for controlling the scan / sustain board 70, and a power supply unit (not shown) for supplying power to each board. .

That is, the data driver board 60 selects only the discharge cells that are discharged among the plurality of discharge cells (not shown) applied to the address electrode formed on the plasma display panel 100 by applying a current.

Here, one or both data driver boards 60 may be installed above or below the plasma display panel 100 according to a single scan method or a dual scan method.

In addition, the data driver board 60 is connected to the main controller 80 to apply a data signal to the address electrode.

Here, the data driver board 60 is provided with a data IC (not shown) to control the current applied to the address electrode, and is switched to control the current applied to the data IC.

As shown in FIG. 2, the scan / sustain board 70 includes an integrated board 72 connected to the main controller 80 and an integrated driver board connecting the integrated board 72 and the plasma display panel 100. (74).

Here, the integrated board 72 is installed at one edge of the rear surface of the plasma display panel 100 and generates a driving voltage applied to the scan electrode and the sustain electrode.

In addition, in the present embodiment, the integrated driver board 74 may be divided into two parts, which may be installed in two parts.

The integrated driver board 74 is provided with a scan IC 75 for applying a current to the scan electrode of the plasma display panel 100, and the scan IC 75 resets and scans the scan electrode and the sustain electrode. And a sustain signal is applied successively.

Here, one side of the connection member 79 is connected to the scan electrode and the sustain electrode, and the other side is connected to one side of the integrated driver board 74 to apply the driving voltage.

That is, the connection member 79 applies the driving voltage to the scan electrode and the driving signal to the sustain electrode according to the switching operation of the scan IC 75.

In the embodiment of the present invention, the connection member 79 has been described by using a flexible printed circuit (FPC), but one of a tape carrier package (TCP), a chip on fpc (COF), and a flat flexible cable (FCC) may be used. have.

3 is a perspective view illustrating a structure of the plasma display panel of FIG. 1.

Referring to FIG. 3, the plasma display panel 100 includes a scan electrode 11, a sustain electrode 12, and an address electrode formed on the lower substrate 20, which are pairs of sustain electrodes formed on the upper substrate 10. (22).

The sustain electrode pairs 11 and 12 typically 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, the sustain electrode pairs 11 and 12 of the present invention not only have a structure in which the transparent electrodes 11a 12a and the bus electrodes 11b and 12b are stacked, but also the bus electrodes 11b and 12a without the transparent electrodes 11a and 12a. 12b) alone. 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. Black matrices (Black MatriZ, BM, 15) are arranged that serve to block and to improve the purity and contrast of the upper substrate 10.

The black matrix 15 according to the present invention is formed on the upper substrate 10, the first black matrix 15 formed at a position overlapping the partition wall 21, the transparent electrodes 11a and 12a and the bus electrode ( The second black matrices 11c and 12c formed between 11b and 12b may be formed. 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.

Not only the structure of the partition wall 21 shown in FIG. 3 of this invention, but also the structure of the partition wall 21 of various shapes is 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.

In the present invention, although the R, G and B discharge cells are 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 + Ze, Ne + Ze, and He + Ne + Ze for discharging is injected into the discharge space provided between the upper / lower substrates 10 and 20 and the partition wall 21.

In the present invention, the scan electrode 11 and the sustain electrode 12 are repeatedly formed one by one, but two sustain electrodes 12 may be included between two adjacent scan electrodes 11.

4 is a plan view illustrating a first surface of the connecting member illustrated in FIG. 2, and FIG. 5 is a plan view illustrating a second surface of the connecting member illustrated in FIG. 2.

4 and 5 illustrate the top surface of the connection member 79 as the first surface S1 and the bottom surface of the connection member 79 as the second surface S2.

That is, the predetermined layer layer may be any one of a plurality of layer layers forming the connection member 79, and the single layer layer may be described as a plurality of layer layers.

The connecting member 79 is connected to the scan electrode 11 and the sustain electrode 12 formed on the upper substrate 10 of the plasma display panel 100 and the integrated drive board 74 among the driving circuits.

The connection member 79 includes a first connection part 79_1 connected to the sustain electrode 12 and the scan electrode 11, and a second connection part 79_2 connected to the integrated drive board 74.

That is, the connection member 79 is connected to each of the sustain electrode 12 and the scan electrode 11 to supply the first and second connection electrodes Z_pad and Y_pad to supply the driving voltage generated by the integrated drive board 74. Include.

As shown in FIG. 4, the second connection electrode Y_pad is individually connected to the plurality of scan electrodes 11 at the first connection portion 79_1 on the first surface S1 of the predetermined layer layer, and the second connection portion 79_2. ) Is connected to the integrated drive board 74.

4 and 5, the first connection electrode Z_pad is individually connected to the plurality of sustain electrodes 12 at the first connection portion 79_1 on the first surface S1, or one metal line. Are commonly connected to each other, and are connected to the integrated drive board 74 at the second connection portion 79_2 on the first surface S1 through the second surface S2.

That is, in the second connector 79_2, the connector does not exist on the first and second connection electrodes Z_pad and Y_pad and the integrated drive board 74, and is directly connected to the board. Could be connected.

In addition, the electrode patterns of the first and second connection electrodes Z_pad and Y_pad shown in FIGS. 4 and 5 are arbitrarily formed, and the present invention is not limited thereto.

The first connection electrode Z_pad is a first sub-electrode Z_1 connected to the sustain electrode 12 on the first surface S1, and a second part connected to the integrated drive board 74 on the first surface S1. Fourth sub-electrode Z_4 and second and third sub-electrodes connecting the electrode Z_2, the third sub-electrode Z_3 formed on the second surface S1, and the first and third sub-electrodes Z_1 and Z_3. The fifth sub-electrode Z_5 connecting the (Z_2, Z_3) is included.

Here, the first sub electrode Z_1 may be independently connected to each of the sustain electrodes 12, or may be commonly connected to one metal electrode.

The second sub-electrode Z_2 is formed of a metal plate connected to the integrated drive board 74 on the first surface S1, and is formed of at least one to sustain the driving voltage supplied from the integrated drive board 74. To supply.

In the present invention, the second sub-electrode Z_2 has been described as one, but when there are two or more portions of the second connection portion 79_2 connected to the integrated drive board 74, two second sub-electrodes Z_2 are provided. As described above, it may be formed symmetrically or asymmetrically based on the second connection electrode Y_pad.

Although the third sub-electrode Z_3 is shown as being formed of an integral metal plate on the second surface S2, the third sub-electrode Z_3 may be formed of at least two metal plates on the second surface S2, At this time, at least two or more metal plates are not electrically connected to each other.

The fourth sub-electrode Z_4 penetrates the first and second surfaces S1 and S2 to connect the first and third sub-electrodes Z_1 and Z_3, and the total number of the fourth sub-electrodes Z_4 is the sustain electrode. It is equal to or less than the total number of (12).

The total number of fourth sub-electrodes Z_4 may be the same as or less than the total number of first sub-electrodes Z_1.

In addition, the fifth sub electrode Z_5 penetrates the first and second surfaces S1 and S2 to connect the second and third sub electrodes Z_2 and Z_3.

 The fourth and fifth sub-electrodes Z_4 and Z_5 are vias formed in a circular or rectangular shape, and each of the fourth and fifth sub-electrodes Z_4 and Z_5 has the first and second surfaces S1 and S2. Although described as a through electrode penetrating, the center portion may not be filled and may be formed on the penetrating side surfaces of the first and second surfaces S1 and S2.

That is, the fourth and fifth sub-electrodes Z_4 and Z_5 are described as being formed on the top and bottom surfaces of the first and second surfaces S1 and S2 of the predetermined layer layer, respectively. It may be a top side or a bottom side of the layer, each may be formed in a different layer layer, and the insulating layer may be laminated.

The total number of fourth sub-electrodes Z_4 is greater than or equal to the total number of fifth sub-electrodes Z_5, and the width of the fourth sub-electrodes Z_4 is equal to or greater than that of the fourth sub-electrodes Z_5. It may be different or the same as the width.

That is, since the space of the fifth sub-electrodes Z_5 connected to the integrated drive board 74 in the second connector 79_2 is limited, the total number of the fifth sub-electrodes Z_5 is less than the total number of the fourth sub-electrodes Z_4, or When the first negative electrode Z_1 is formed of one metal, the first negative electrode Z_1 may be formed to be equal to the total number of the fourth negative electrodes Z_4.

In addition, reducing the total number of each of the fourth and fifth sub electrodes Z_4 and Z_5 may be more advantageous in preventing voltage loss of the driving voltage.

In the second connector 79_2, the first and second connection electrodes Z_pad and Y_pad are formed to be spaced apart at predetermined intervals. This is to prevent noise (noise) and EMI caused by interference and overlap due to respective driving voltages supplied to the first and second connection electrodes Z_pad and Y_pad.

The connecting member 79 of the present invention may be connected to the integrated drive board 74 by a separate connector, and may also be directly connected without using a separate connector.

For example, when the integrated drive board 74 is not provided with a separate connector, the connection member 79 may be an integrated drive board (PCB) using an anisotropic conductive film (ACF). 74).

As described above, the anisotropic conductive film (ACF) is an adhesive material which exhibits bidirectional insulation property and exhibits electrical conductivity in the thickness direction, and is an adhesive material in the form of a tape in which conductive particles are dispersed. In this case, an alignment mark is formed on the connection member 79. It can be adhered to the correct position of the integrated drive board 74.

In the present exemplary embodiment, the first and second connection electrodes Z_pad and Y_pad are integrally formed in the second connection part 79_2 of the connection member 79, but the first and second connection electrodes Z_pad and Y_pad are formed in one embodiment. The first and second connection electrodes Z_pad and Y_pad may be symmetrical with respect to the other one, and may be spaced apart from each other at predetermined intervals, thereby improving a screen step when implementing an image.

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 device according to a first embodiment of the present invention.

2 is a rear view illustrating a module of the plasma display device according to the first embodiment of the present invention.

3 is a perspective view illustrating a structure of the plasma display panel of FIG. 1.

4 is a plan view illustrating a first surface of the connecting member illustrated in FIG. 2.

FIG. 5 is a plan view illustrating a second surface of the connecting member illustrated in FIG. 2.

Claims (10)

A plasma display panel having first and second electrodes formed thereon; A printed circuit board on which a driving circuit for generating a driving voltage supplied to the first and second electrodes is mounted; And a connection member connected to the printed circuit board and the plasma display panel to supply driving voltages generated by the driving circuit to the first and second electrodes. The connecting member, And first and second connection electrodes connected to the first and second electrodes, respectively. The first connection electrode, A first sub electrode connected to the first electrode on a first surface of a predetermined layer layer; A second sub electrode having the predetermined layer layer connected to the printed circuit board on a first surface; A third sub-electrode formed on the second surface of the predetermined layer layer; A fourth sub-electrode connecting the first and third sub-electrodes; And And a fifth sub-electrode connecting the second and third sub-electrodes. The method of claim 1, wherein the second connection electrode, A plasma display device connected to the second electrode and the printed circuit board at a first surface of the predetermined layer layer. The method of claim 1, wherein the first sub electrode, And at least one first electrode. The method of claim 1, wherein the second sub electrode, And at least two metal plates are formed symmetrically. The method of claim 1, wherein the third sub electrode, A plasma display device comprising an integrated metal plate. The method of claim 1, The third sub electrode is divided into at least two metal plates, The at least two metal plates, Plasma display device, characterized in that not connected to each other. The method of claim 1, wherein the fourth and fifth sub electrodes, And a via connecting the first and second sub electrodes and the second and third sub electrodes through the first and second surfaces. The method of claim 1, wherein the fourth and fifth sub electrodes, Plasma display device characterized in that formed in a circular or square. The method of claim 1, wherein the total number of the fourth sub-electrodes is And a total number of the fifth sub-electrodes different from the total number of the fifth sub-electrodes. The method of claim 1, wherein the electrode width of the fourth sub-electrode, And a width different from that of the fifth sub-electrode.

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