KR100658326B1 - Energy Recovery Apparatus of Plasma Display Panel - Google Patents

Abstract

The present invention is formed by patterning an inductor, which is one of the components to be mounted on a printed board, and by forming a ground pattern to overlap the inductor pattern, thereby reducing the overall volume of the driving device of the plasma display panel and reducing EMI due to the driving of the inductor. It is effective to block.

The energy recovery apparatus of the plasma display panel of the present invention for achieving this purpose includes a main printed board and an auxiliary printed board provided on the main printed board, the inductor pattern is formed on one side and the ground pattern is formed on the other side. In addition, the inductor pattern is electrically connected to the auxiliary printed board, and a connection pad part for electrically connecting the ground pattern is formed.

Energy recovery apparatus of another plasma display panel of the present invention for achieving this purpose is provided on the main printed board, the main printed board, the first auxiliary is formed on the inductor pattern on one side and the first ground pattern on the other side And a second auxiliary printed board disposed to face the printed board and the first auxiliary printed board, and having a second ground pattern formed on one side thereof, wherein the first and second auxiliary printed boards each have an inductor pattern and a first and second ground pattern. It is characterized in that the connection pads for electrical connection are formed respectively.

Description

Energy recovery device for plasma display panel {Energy Recovery Apparatus of Plasma Display Panel}

1 is a view showing the structure of a typical plasma display panel.

2 is a diagram illustrating a method of expressing image gradation of a typical plasma display panel.

3 is a view showing a configuration of an energy recovery apparatus of a conventional plasma display panel.

4 is a view showing a drive waveform of the energy recovery device of the conventional plasma display panel.

5 is a view for explaining a first embodiment of an energy recovery apparatus of the plasma display panel according to the present invention;

FIG. 6 is a view for explaining the first embodiment of the energy recovery apparatus of the plasma display panel of the present invention of FIG. 5 in more detail.

FIG. 7 illustrates a via hole formed in the second connection pad part of FIG. 6. FIG.

FIG. 8 is a view for explaining a via hole formed in the first connection pad part of FIG. 6; FIG.

9 is a view for explaining a second embodiment of the energy recovery apparatus of the plasma display panel according to the present invention;

10 is a view for explaining a second embodiment of the energy recovery apparatus of the plasma display panel of the present invention of FIG.

FIG. 11 is a view for explaining a via hole formed in the second connection pad part of FIG. 10; FIG.

12 is a diagram for explaining a coupling relationship between an auxiliary printed board and a main printed board.

<Explanation of symbols for main parts of the drawings>

500: main printed circuit board 501: other electronic elements

510: auxiliary printed board 511: inductor pattern

The present invention relates to a plasma display panel, and more particularly, to an energy recovery apparatus of a plasma display panel that can reduce the number of components mounted in the plasma display panel driving apparatus and reduce EMI.

In general, a plasma display panel is a partition wall formed between a front panel and a rear panel to form one unit cell, and each cell includes neon (Ne), helium (He), or a mixture of neon and helium (Ne + He) and An inert gas containing the same main discharge gas and a small amount of xenon 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 of its thin and light configuration.

1 illustrates a structure of a general plasma display panel.

As shown in FIG. 1, a plasma display panel includes a front panel in which a plurality of sustain electrode pairs formed by pairing a scan electrode 102 and a sustain electrode 103 are arranged on a front glass 101 that is a display surface on which an image is displayed. The rear panel 110 on which the plurality of address electrodes 113 are arranged so as to intersect the plurality of sustain electrode pairs on the back glass 111 forming the back surface 100 and the rear surface is coupled in parallel with a predetermined distance therebetween. .

The front panel 100 is made of a scan electrode 102 and a sustain electrode 103, that is, a transparent electrode (a) formed of a transparent ITO material and a metal material to mutually discharge and maintain light emission of the cells in one discharge cell. The scan electrode 102 and the sustain electrode 103 provided as the bus electrode b are included in pairs. The scan electrode 102 and the sustain electrode 103 are covered by one or more dielectric layers 104 that limit the discharge current and insulate the electrode pairs, and are oxidized on top of the upper dielectric layer 104 to facilitate the discharge conditions. A protective layer 105 on which magnesium (MgO) is deposited is formed.

The rear panel 110 is arranged such that a plurality of discharge spaces, that is, barrier ribs 112 of a stripe type (or well type) for forming discharge cells are maintained in parallel. In addition, a plurality of address electrodes 113 which perform address discharge to generate vacuum ultraviolet rays are arranged in parallel with the partition wall 112. On the upper side of the rear panel 110, R, G, and B phosphors 114 which emit visible light for image display during address discharge are coated. A lower dielectric layer 115 is formed between the address electrode 113 and the phosphor 114 to protect the address electrode 113. A method of expressing an image gray level of a general plasma display panel having such a structure will be described with reference to FIG. 2.

2 illustrates a method of expressing image gradations of a general plasma display panel.

As shown in Fig. 2, the image gradation of the plasma display panel is driven by dividing one frame into several subfields having different emission counts. Each subfield is divided into a reset period for uniformly generating a discharge, an address period for selecting a discharge cell, 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, the frame period (16.67 ms) corresponding to 1/60 second is divided into eight subfields. In addition, each of the eight subfields is divided into an address period and a sustain period. Here, the reset period and the address period of each subfield are the same for each subfield, while the sustain period is 2 ⁿ (n = 0,1,2,3,4,5,6,7) in each subfield. Is increased. As described above, a driving method of a plasma display panel driven by being divided into a plurality of subfields is as follows.

The three-electrode AC surface discharge type plasma display panel is driven by being divided into a plurality of subfields, and gray scale display is performed in each subfield period by emitting light a number of times proportional to the weight of video data as described above. The subfields SF1 to SF8 are further divided into reset periods, address periods, sustain periods, and erase periods. Here, the reset period is a period in which uniform wall charges are formed in the discharge cells, the address period is a period in which selective address discharge occurs in accordance with the logic value of the video data, and the sustain period is a discharge cell in which the address discharge has occurred. Is a period for maintaining the discharge. The erasing period is a period of erasing the sustain discharge generated in the sustain period. The high voltage of several hundred volts or more is required for the address discharge and the sustain discharge of the AC surface discharge plasma display panel driven as described above. Therefore, an energy recovery apparatus is used to minimize the driving power required for the address discharge and the sustain discharge.

The energy recovery apparatus recovers the voltage between the scan electrode and the sustain electrode and uses the voltage recovered as the drive voltage at the next discharge.

The energy recovery apparatus of the plasma display panel is included in the driving unit for driving the scan electrode and the driving unit for driving the sustain electrode, respectively. The energy recovery apparatus of the plasma display panel included in each driving unit is as follows.

3 is a view showing the configuration of an energy recovery apparatus of a conventional plasma display panel.

As shown in FIG. 3, the energy recovery apparatus of the conventional plasma display panel is connected to the scan electrode and the sustain electrode, respectively, in order to recover unnecessary energy generated in the panel, that is, reactive power. The driving method of the energy recovery device will be described with reference to FIG. 4.

First, in a first state (state 1), the first switch Q1 is turned on and the second to fourth switches Q2, Q3, and Q4 are turned off. As a result, Vp increases as energy stored in the capacitor Css is supplied to the panel Cp. In the first state, as shown in FIG. 3, the current flowing through the inductor L becomes + IL since energy is supplied from the capacitor Css to the panel Cp.

In the second state (state 2), the first switch Q1 and the second switch Q2 are turned on, and the third switch Q3 and the fourth switch Q4 are turned off. Accordingly, Vp becomes the sustain voltage Vs. The sustain voltage Vs is applied to the panel Cp at the end of the first state 1, that is, at the time t1 becomes the maximum value Vs due to LC resonance. Here, the sustain voltage Vs means a voltage for maintaining the discharge of the discharge cell.

Thereafter, in the third state (state 3), the third switch Q3 is turned on, and the first switch, the second switch, and the fourth switches Q1, Q2, and Q4 are turned off. As a result, energy stored in the panel Cp is discharged to the capacitor Css, and energy is recovered, and Vp drops. In the third state, since current flows from the panel Cp to the capacitor Css, the current flowing through the inductor L becomes -IL.

Finally, in the fourth state 4, the third switch Q3 and the fourth switch Q4 are turned on, and the first switch and the second switches Q1 and Q2 are turned off. As a result, Vp becomes the ground level. At the end of the third state (state 3), that is, at t2, Vp is maintained at the ground level.

The energy recovery device of the conventional plasma display panel uses an inductor (L) for energy recovery and supply as described above, the capacity of the inductor (L) of the conventional energy recovery device is the voltage of the sustain voltage source It is set such that it can be applied, that is, a predetermined current can pass through. Therefore, the inductor L is formed to have a large volume, and a circuit board on which the inductor L formed to have a large volume is mounted.

In addition, when a current is supplied to the inductor L, the inductor L emits a lot of electromagnetic waves (EMI), which is emitted outside the panel without filtering the electromagnetic waves, which is not good for the human body. It is affecting.

Accordingly, an object of the present invention is to provide an energy recovery apparatus of a plasma display panel which can reduce the number of components to be mounted and at the same time reduce the generation of electromagnetic waves by improving the printed circuit board structure of the plasma display panel driving apparatus.

The energy recovery apparatus of the plasma display panel of the present invention for achieving this purpose includes a main printed board and an auxiliary printed board provided on the main printed board, the inductor pattern is formed on one side and the ground pattern is formed on the other side. In addition, the inductor pattern is electrically connected to the auxiliary printed board, and a connection pad part for electrically connecting the ground pattern is formed.

Here, the above-described ground pattern is characterized in that it is formed to overlap the inductor pattern on the auxiliary printed board, preferably, the ground pattern is formed so as to overlap the same position as the formation position of the inductor pattern on the auxiliary printed board. do.

In addition, the ground pattern and the inductor pattern is characterized in that they are electrically independent of each other.

In addition, the connection pad part may include a first connection pad part for electrically connecting the inductor pattern, and a second connection pad part electrically independent of the first connection pad part, and for connecting the ground pattern electrically. .

In addition, a via hole for connecting the main printed circuit board may be formed in the first connection pad part and the second connection pad part, respectively.

In addition, the via holes formed in the first connection pad part may be formed at positions corresponding to both ends of the inductor pattern, respectively.

In addition, the auxiliary printed board is characterized in that it is provided on the main printed board to be parallel to the main printed board.

In addition, the inductor pattern of the auxiliary printed board is characterized in that formed on the surface facing the main printed board.

In addition, the energy recovery device of another plasma display panel of the present invention for achieving this purpose is provided on the main printed circuit board, the main printed circuit board, the inductor pattern is formed on one side and the first ground pattern is formed on the other side And a second auxiliary printed board disposed to face the first auxiliary printed board and the first auxiliary printed board, and having a second ground pattern formed on one side thereof, wherein the inductor patterns are electrically connected to the first and second auxiliary printed boards, respectively. And a connection pad portion for electrically connecting the first ground pattern and electrically connecting the second ground pattern.

Here, the above-described inductor pattern is formed so as to overlap each of the first ground pattern and the second ground pattern, more preferably the inductor pattern is located at the same position as at least one of the first ground pattern or the second ground pattern. It is characterized in that it is formed to overlap.

In addition, the first and second ground patterns and the inductor pattern may be electrically independent of each other.

In addition, the connection pad part may include a first connection pad part for electrically connecting the inductor pattern and a second connection electrically independent of the first connection pad part, and for electrically connecting the first ground pattern and the second ground pattern to each other. And a third connection pad part electrically connected to the pad part and the first connection pad part and electrically connected to the first ground pattern and the second ground pattern electrically connected to each other.

Here, the aforementioned first, second, and third connection pads may be formed on any one of the first auxiliary printed board and the second auxiliary printed board.

In addition, a via hole for connecting the first auxiliary printed board and the second auxiliary printed board is formed in the second connection pad part.

In addition, the first auxiliary printed board and the second auxiliary printed board are installed side by side.

In addition, the inductor pattern of the first auxiliary printed board is formed between the first ground pattern and the second ground pattern.

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention in more detail.

<First Embodiment>

5 is a view for explaining a first embodiment of the energy recovery apparatus of the plasma display panel according to the present invention.

As shown in FIG. 5, the first embodiment of the energy recovery apparatus of the plasma display panel according to the present invention includes a main printed board 500, an auxiliary printed board 510, and an inductor pattern 511.

On the main printed board 500, electronic devices for driving a plasma display panel such as a diode, a switching device, and the like as shown in FIG. 3 are mounted. These various electronic devices are shown at 501.

The auxiliary printed board 510 is installed on the aforementioned main printed board 500, and an inductor pattern 511 is formed at one side and a ground pattern (not shown) is formed at the other side.

As described above, the inductor pattern 511 formed by patterning the auxiliary printed circuit board 510 is electrically connected to an external predetermined electronic device 501.

Although not shown, the auxiliary printed board 510 is provided with a connection pad portion (not shown) for electrically connecting the inductor pattern 511 and the ground pattern (not shown), respectively. The connection pad part (not shown) may include a second connection pad part (not shown) for allowing the ground pattern (not shown) to be electrically connected to the first connection pad part for allowing the inductor pattern 511 to be electrically connected ( Not shown).

The first embodiment of the energy recovery apparatus of the plasma display panel of FIG. 5 according to the present invention will be described in detail with reference to FIG. 6.

FIG. 6 is a view for explaining the first embodiment of the energy recovery apparatus of the plasma display panel of the present invention of FIG. 5 in more detail.

Referring to FIG. 6, the ground pattern 600 is formed on one side of the auxiliary printed board 510 as shown in (a), and the other side of the side on which the ground pattern 600 is formed, that is, the other side (c) As in the inductor pattern 511 is formed. The inductor pattern 511 is preferably formed by patterning in a zigzag pattern as shown in (c). Here, the second connection pad part 601 for grounding the above-described ground pattern 600 is formed. Therefore, the ground pattern 600 is connected to the ground through the second connection pad portion 601. In addition, a first connection pad part 602 is formed to electrically connect the above-described inductor pattern 511 to other electronic elements of a main printed board (not shown). Therefore, the inductor pattern 511 is electrically connected to other electrical elements of the main printed board (not shown) through the first connection pad portion 602. Here, the first connection pad portion 602 and the second connection pad portion 601 are electrically independent of each other.

In addition, the auxiliary printed board 510 is preferably installed on the main printed board (not shown) to be parallel to the main printed board (not shown). In addition, the inductor pattern 511 of the auxiliary printed board 510 may be formed on a surface facing the main printed board (not shown). That is, the arrangement order is the order of the main printed board (not shown), the inductor pattern 511, and the ground pattern 600.

Here, in FIG. 6B, the size of the above-described ground pattern 600 is shown to be larger than that of the inductor pattern 511. However, the present invention provides the size of each of the ground pattern 600 and the inductor pattern 511. However, the above-described ground pattern 600 may be formed to overlap the inductor pattern 511 on the auxiliary printed board 510. More preferably, the above-described ground pattern 600 is formed at the same position as the formation position on the auxiliary printed board 510 of the inductor pattern 511.

Here, the ground pattern 600 and the inductor pattern 511 described above are electrically independent of each other. In addition, a predetermined via hole is formed in the aforementioned second connection pad part 601 to electrically connect the ground pattern 600 by a method of grounding the above-described ground pattern 600. Looking at it as follows.

FIG. 7 is a diagram for describing a via hole formed in the second connection pad part of FIG. 6.

Referring to FIG. 7, a via hole 700 penetrates through the auxiliary printed circuit board 510 in the second connection pad part 601 to insert a predetermined fastening means such as a bolt into the second connection pad part 601 to connect the ground of the ground pattern 600. Is formed. When a predetermined fastening means is inserted through the via hole of the second connection pad part 601, the ground pattern 600 is connected to the ground. Accordingly, the above-described inductor pattern when the energy recovery device of the plasma display panel of the present invention is driven. Blocks harmful electromagnetic waves generated by the operation of the 511 (Electro Magnetic Interference: 'EMI').

In addition, a predetermined via hole is also formed in the aforementioned first connection pad part 602 in order to electrically connect the inductor pattern 511 to another electrical element by connecting the inductor pattern 511 to another electrical element. In conjunction with 8, it is as follows.

FIG. 8 is a diagram for describing a via hole formed in the first connection pad part of FIG. 6.

Referring to FIG. 8, a via hole 800 for inserting a predetermined fastening means such as a bolt into the first connection pad part 602 for electrical connection with other electrical elements of the inductor pattern 511 includes an auxiliary printed circuit board. It is formed through the 510. Here, the via holes 800 formed in the first connection pad part 602 may be formed at positions corresponding to both ends of the inductor pattern 511, respectively. That is, the aforementioned first connection pad portions 602 are formed at both ends of the inductor pattern 511, and the via holes are formed in the first connection pad portions 602 to penetrate the auxiliary printed circuit board 510 as described above. 800 are each formed. Accordingly, the volume of the energy recovery device of the plasma display panel of the present invention is greatly reduced, and accordingly, the volume of the plasma display device including the energy recovery device of the plasma display panel of the present invention is also reduced. In other words, a thinner plasma display device can be manufactured.

The first embodiment of the energy recovery apparatus of the plasma display panel of the present invention described above includes only one auxiliary printed board having an inductor pattern formed thereon, and is shown and described only when the auxiliary printed board is installed in parallel with the main printed board. However, differently, the auxiliary printed board having the inductor pattern formed thereon and the inductor pattern having the ground pattern formed thereon may be formed on another auxiliary printed board, and the auxiliary printed boards may be mounted on the main printed board. Same as the example.

Second Embodiment

9 is a view for explaining a second embodiment of the energy recovery apparatus of the plasma display panel according to the present invention.

As shown in FIG. 9, the second embodiment of the energy recovery apparatus of the plasma display panel according to the present invention is formed on the main printed board 500, the auxiliary printed board 900, and the aforementioned auxiliary printed board 900. An inductor pattern 901. Although not shown here, the aforementioned auxiliary printed board 900 is divided into a first auxiliary printed board and a second auxiliary printed board according to the formed pattern.

On the main printed board 500, electronic devices for driving a plasma display panel such as a diode, a switching device, and the like as shown in FIG. 5 are mounted.

The auxiliary printed board 900 is provided on the main printed board 500 described above, includes an inductor pattern 901, and also includes a ground pattern (not shown).

As described above, the inductor pattern 901 formed by patterning the auxiliary printed circuit board 510 is electrically connected to an external predetermined electronic device 501.

Although not shown, the auxiliary printed circuit board 900 includes a connection pad part (not shown) for electrically connecting the inductor pattern 901 and the ground pattern (not shown), respectively. The connection pad part (not shown) includes a ground pattern (not shown) and first, second and third connection pad parts (not shown) for electrically connecting the inductor pattern 901.

The second embodiment of the energy recovery apparatus of the plasma display panel of FIG. 9 according to the present invention will be described in detail with reference to FIG. 10.

FIG. 10 is a view for explaining a second embodiment of the energy recovery apparatus of the plasma display panel of the present invention in FIG. 9 in more detail.

Referring to FIG. 10, the aforementioned auxiliary printed board 900 is divided into a first auxiliary printed board 1000 and a second auxiliary printed board 1001 according to the formed pattern.

In the auxiliary printed board 900, a first ground pattern 1002 is formed on one side of the first auxiliary printed board 1000, and an inductor pattern 901 is formed on the other side of the auxiliary printed board 900. In addition, as shown in (d), a second ground pattern 1003 is formed on one side of the second auxiliary printed board 1001, and the second auxiliary printed board 1001 and the first auxiliary printed board 1000 are coupled to each other. As shown in (c), an auxiliary printed board having a reference numeral 900 is formed.

As such, when the first auxiliary printed board 1000 and the second auxiliary printed board 1001 are coupled to each other, the first ground pattern 1002 and the second ground pattern 1003 are exposed to the outside, and the inductor pattern 901 is exposed. The first auxiliary printed board 1000 and the second auxiliary printed board 1001 are coupled to each other so as to be positioned on the surface.

Here, the inductor pattern 901 described above is preferably formed to overlap the first ground pattern 1002 and the second ground pattern 1003, respectively. More preferably, the above-described inductor pattern 901 is formed at the same position as that of at least one of the first ground pattern 1002 or the second ground pattern 1003. The first and second ground patterns 1002 and 1003 and the inductor pattern 901 are electrically independent of each other. That is, the first ground pattern 1002 and the second ground pattern 1003 described above are electrically connected to each other, but the first and second ground patterns 1002 and 1003 and the inductor pattern 901 are electrically independent of each other. .

Here, the inductor pattern 901 described above is preferably formed in a zigzag pattern on the other side of the first auxiliary printed board 1000 as shown in (b). Here, as in (c), the first ground pattern 1002 of the first auxiliary printed board 1000 and the second ground pattern 1003 of the second auxiliary printed board 1001 are electrically connected to each other. The second connection pad portion 1004 is formed. Accordingly, the first ground pattern 1002 and the second ground pattern 1003 are electrically connected to each other through the second connection pad portion 1004.

As such, when the first ground pattern 1002 and the second ground pattern 1003 electrically connected to each other are grounded, EMI generated by the above-described inductor pattern 901 when the energy recovery device of the plasma display panel of the present invention is driven. The third connection pad portion 1006 is formed to block. The third connection pad part 1006 is preferably located at a point where the main printed board (not shown) and the auxiliary printed board 900 abut. Also, the third connection pad part 1006 may be formed on either or both of the first auxiliary printed board 1000 and the second auxiliary printed board 1001 described above.

Here, in FIG. 10, the second connection pad portion 1004, the first ground pattern 1002, and the second ground pattern 1003 for electrically connecting the first ground pattern 1002 and the second ground pattern 1003 to each other. Although only the third connection pad portions 1006 are provided and grounded to ground the respective portions, the first ground pattern 1002 and the second ground pattern 1003 are different from each other by using a predetermined connection pad portion. It is also possible to ground at the same time while the electrical connection. For example, a third connection pad portion 1006 for grounding the first ground pattern 1002 and the second ground pattern 1003 as shown in FIG. 10 may be formed by the first ground pattern 1002 and the second ground pattern ( If the structure is changed to electrically connect the 1003, the first ground pattern 1002 and the second ground pattern 1003 may be electrically connected without the second connection pad part 1004 described above.

In addition, as shown in (b), the first connection pad part 1005 for electrically connecting the inductor pattern 901 to the second connection pad part 1004 is electrically independent of the inductor pattern 901. It is formed at both ends. The first connection pad part 1005 allows the inductor pattern 901 to be electrically connected to another electronic element mounted on a main printed board (not shown). Accordingly, resonance of the inductor pattern 901 occurs smoothly when the energy recovery device of the plasma display panel of the present invention is driven.

In addition, the first auxiliary printed board 1000 may be disposed on the main printed board (not shown) to be parallel to the second auxiliary printed board 1001. That is, the arrangement order is the order of the first ground pattern 1002, the inductor pattern 901, and the second ground pattern 1003. The auxiliary printed circuit board 900 in this arrangement order is provided on the main printed board (not shown).

Here, in FIG. 10, the sizes of the first ground pattern 1002 and the second ground pattern 1003 described above are shown to be larger than the inductor pattern 901. However, the present invention provides the first and second ground patterns 1002, The size of each of the 1003 and the inductor pattern 901 is not limited, but the first and second ground patterns 1002 and 1003 described above are preferably formed to overlap the inductor pattern 901. In addition, a predetermined via hole is formed in the aforementioned second connection pad part 1004 to connect the first ground pattern 1002 and the second ground pattern 1003 to each other. same.

FIG. 11 is a diagram for describing a via hole formed in the second connection pad part of FIG. 10.

Referring to FIG. 11, a via hole 1100 for inserting a predetermined fastening means such as a bolt is inserted into the second connection pad part 1004 to connect the first ground pattern 1002 and the second ground pattern 1003. It is formed through the first auxiliary printed board 1000 and the second auxiliary printed board 1001. When a predetermined fastening means is inserted through the via hole 1100 of the second connection pad part 1004, the first ground pattern 1002 and the second ground pattern 1003 are electrically connected to each other. In addition, as described above, the first ground pattern 1002 and the second ground pattern 1003 are connected to ground, and thus, the inductor pattern described above with reference to FIG. 10 when the energy recovery device of the plasma display panel of the present invention is driven ( EMI is generated by the operation of the 901 is blocked.

Between the auxiliary printed board 900 and the main printed board (not shown) to connect the auxiliary printed board 900 having the inductor pattern 901 of FIG. 10 described above with other electrical elements on the main printed board (not shown). A first connection pad portion 1005 is formed on the contact surface, and a third portion between the auxiliary printed board 900 and the main printed board (not shown) for connecting the first and second ground patterns 1002 and 1003 to ground. The connection pad part 1006 is formed, and the structure thereof will be described with reference to FIG. 12.

12 is a diagram for explaining a coupling relationship between an auxiliary printed board and a main printed board.

As illustrated in FIG. 12, the first ground pattern 1002 and the second ground pattern 1003 are electrically connected to each other through the via hole 1100 formed in the second connection pad part 1004. The connected first ground pattern 1002 and the second ground pattern 1003 are electrically connected to the main printed board 500 through the third connection pad part 1006.

In addition, the inductor pattern 901 is electrically connected to the main printed board 500 through the first connection pad part 1005. The first, second, and third connection pad portions 1004, 1005, and 1006 may be formed on either the first auxiliary printed board 1000 or the second auxiliary printed board 1001, or may be formed on the first auxiliary printed board ( 1000 and the second auxiliary printed board 1001. That is, the first and second connection pad parts 1004 and 1005 are formed on the first auxiliary printed board 1000, and the third connection pad part 1006 is formed on the second auxiliary printed board 1001. However, in consideration of the convenience of manufacturing the auxiliary printed board 900, the first, second, and third connection pad units 1004, 1005, and 1006 may include the first auxiliary printed board 1000 and the second auxiliary printed board 1001. It is preferable to form all in either one.

As such, as shown in FIG. 12, the auxiliary printed board 900 may be placed on the main printed board 500 without installing the auxiliary printed board 900 in parallel with the main printed board 500. .

When the energy recovery device of the plasma display panel of the present invention is implemented in such a structure, the volume of the energy recovery device of the plasma display panel is greatly reduced, and thus the plasma display device including the energy recovery device of the plasma display panel of the present invention. Also reduces the volume. In other words, a thinner plasma display device can be manufactured.

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

Therefore, the above-described embodiments 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 detailed description, and the meaning and scope of the claims 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 above, the energy recovery apparatus of the plasma display panel of the present invention is formed by patterning an inductor on a printed board and forming a ground pattern to overlap the inductor pattern, thereby reducing the overall volume and blocking EMI due to driving of the inductor during driving. It is effective.

Claims (18)

With main printed board, The auxiliary printed board is installed on the main printed board, the inductor pattern is formed on one side and the ground pattern is formed on the other side Including, And the connection pad portion for electrically connecting the inductor pattern and the ground pattern to the auxiliary printed board. The method of claim 1, The ground pattern is And an energy recovery device of the plasma display panel to overlap the inductor pattern on the auxiliary printed substrate. The method of claim 2, The ground pattern is And an energy recovery device of the plasma display panel, wherein the energy recovery device is formed to overlap the same position as that of the inductor pattern on the auxiliary printed board. The method of claim 1, And the ground pattern and the inductor pattern are electrically independent of each other. The method of claim 1, The connection pad part A first connection pad part for electrically connecting the inductor pattern; A second connection pad portion electrically independent of the first connection pad portion, and to which the ground pattern is electrically connected; Energy recovery apparatus of the plasma display panel comprising a. The method of claim 5, The first connection pad portion and the second connection pad portion And an via hole for connecting to the main printed board, respectively. The method of claim 6, The via hole formed in the first connection pad part is The energy recovery device of the plasma display panel, characterized in that formed in positions corresponding to both ends of the inductor pattern, respectively. The method of claim 1, The auxiliary printed board is And an energy recovery device of the plasma display panel, wherein the plasma display panel is disposed on the main printed circuit board to be parallel to the main printed circuit board. The method according to any one of claims 1 to 4 or 8, The inductor pattern of the auxiliary printed board is The energy recovery device of the plasma display panel, characterized in that formed on the surface facing the main printed board. Main printed circuit board; A first auxiliary printed board provided on the main printed board and having an inductor pattern formed at one side thereof and a first ground pattern formed at the other side thereof; And A second auxiliary printed board disposed to face the first auxiliary printed board and having a second ground pattern formed on one side thereof; Including, The inductor pattern is electrically connected to the first and second auxiliary printed boards, the first ground pattern is electrically connected, and a connection pad part is formed to electrically connect the second ground pattern. Energy recovery device for display panel. The method of claim 10, The inductor pattern is And an energy recovery device of the plasma display panel, wherein the first ground pattern and the second ground pattern overlap each other. The method of claim 11, The inductor pattern is And at least one of the first ground pattern and the second ground pattern overlapping the same position. The method of claim 10, And the first and second ground patterns and the inductor pattern are electrically independent of each other. The method of claim 10, The connection pad part A first connection pad part for electrically connecting the inductor pattern; A second connection pad part electrically independent of the first connection pad part and electrically connecting the first ground pattern and the second ground pattern to each other; And A third connection pad portion for electrically connecting the first ground pattern and the second ground pattern electrically connected to each other and electrically connected to the first connection pad portion; Energy recovery apparatus of the plasma display panel comprising a. The method of claim 14, The first, second, third connection pad unit The energy recovery device of the plasma display panel, characterized in that formed on any one of the first auxiliary printed substrate and the second auxiliary printed substrate. The method of claim 14, The second connection pad portion And a via hole for connecting the first auxiliary printed board to the second auxiliary printed board. The method of claim 10, And the first auxiliary printed board and the second auxiliary printed board are installed side by side. The method according to any one of claims 10 to 13 or 16, The inductor pattern of the first auxiliary printed board is And an energy recovery device formed between the first ground pattern and the second ground pattern.

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