KR20080042623A - Plasma display apparatus - Google Patents

Abstract

A plasma display device is provided to secure easily a space of a driving board and to reduce a manufacturing cost by improving the driving board. A heat-radiating frame is arranged in a rear surface of a plasma display panel. A driving board is arranged in a rear surface of the heat-radiating frame. The driving board includes a first driving board(110) and a second driving board(120). A part of the first driving board is overlapped with a part of the second driving board. The first driving board is connected to the second driving board. The first and second driving boards include connective parts(113,123) to be connected to each other, and fixing holes(112,122). A coupling unit penetrates the fixing holes.

Description

Plasma Display Apparatus {Plasma Display Apparatus}

1 is for explaining a plasma display device according to an embodiment of the present invention.

2A to 2B illustrate a driving board of a plasma display device according to an embodiment of the present invention.

3 is a view illustrating a coupling of a driving board in a plasma display device according to an embodiment of the present invention.

4 is a view illustrating a driving board of a plasma display device according to another exemplary embodiment.

5 is a view for explaining the structure of a plasma display panel of the plasma display device according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: drive board 110: first drive board

120: second drive board 112, 122: fixing hole

113, 123: drive signal connection unit 150: drive unit

200: heat dissipation frame 300: plasma display panel

The present invention relates to a plasma display device.

In general, the plasma display panel includes a phosphor layer in a discharge cell divided by a partition wall, and includes a plurality of electrodes to supply a driving signal to the discharge cell.

In the plasma display panel, when a driving signal is supplied to the discharge cell, the discharge gas filled in the discharge cell generates vacuum ultraviolet rays. The vacuum ultraviolet light emits a phosphor formed in the discharge cell to implement an image.

On the other hand, a plurality of driving boards on which a driving unit for driving the plasma display panel is arranged is provided. The plurality of driving boards are connected to each other with neighboring driving boards in order to supply driving signals supplied from the driving unit. At this time, the connection between the drive boards used connectors. The use of such a connector not only takes up a lot of space on the drive board but also causes a problem in that the working process is difficult.

In order to solve the above-mentioned problems, an object of the present invention is to provide a plasma display device in which a space for a driving board and a work process are simplified in a plasma display device according to an embodiment of the present invention.

Plasma display device according to an embodiment of the present invention for achieving the above object includes a plasma display panel, a heat dissipation frame disposed on the back of the plasma display panel and a drive board disposed on the back of the heat dissipation frame, A first drive board and a second drive board are included, and a part of the first drive board and a part of the second drive board overlap each other and are connected to each other.

In addition, each of the first driving board and the second driving board includes a connection part electrically connecting each other, and a fixing hole through which the fastening means for fastening each other passes.

In addition, the connecting portion of the first driving board and the connecting portion of the second driving board are disposed on opposite surfaces.

In addition, the connection portion includes a metallic material having conductivity.

In addition, the thickness of the portion where the first drive board and the second drive board overlap is thinner or substantially the same as the thickness of the other portions.

In addition, the thickness of the part which overlaps a 1st drive board and a 2nd drive board is 0.5 to 1 time of the thickness of another part.

In addition, the plasma display device of which the width of the overlapping portion of the first driving board and the second driving board is not less than two times and not more than five times the width of the fixing hole.

Details of other embodiments are included in the detailed description and drawings, and will be apparent with reference to the embodiments described below.

1 is for explaining a plasma display device according to an embodiment of the present invention.

Referring to FIG. 1, a plasma display apparatus according to an embodiment of the present invention includes a driving unit 150, a driving board 100, a heat radiating frame 200, and a plasma display panel 300.

The plasma display panel 300 is bonded to the front panel (not shown) and the rear panel (not shown) at regular intervals, and includes a scan electrode, a sustain electrode, and an address electrode. Detailed description thereof will be described later with reference to FIG. 5.

The frame 200 supports the plasma display panel 300 and the driving board 100. The plasma display panel 300 is positioned on one side of the frame 200, and the driving board 100 on which the driving unit 150 is disposed is located on the other side opposite to the plasma display panel 300. The reason why the frame 200 is attached to one surface of the plasma display panel 300 is that the plasma display panel 300 receives heat generated when the plasma display panel 300 is driven and discharges the heat to the outside. Therefore, the frame 200 includes a material having excellent thermal conductivity.

The driver 150 supplies a driving signal to the plasma display panel 300 to process and drive an image signal to be displayed on the plasma display panel 300. The driving unit may include a scan supply unit supplying a scan signal, a sustain supply unit supplying a sustain signal, and a data supply unit supplying an address signal.

In the driving board 100, the driving unit 150 is disposed, and printed wirings, which are paths for supplying driving signals, are disposed. The driving signal supplied from the driving unit 150 is supplied to the plasma display panel 300 through the printed wirings arranged on the driving board 100. In addition, the driving board also serves to stably support the driving unit. Detailed description of the driving board 100 will be described later.

2A to 2B illustrate a driving board of a plasma display device according to an embodiment of the present invention.

First, referring to FIG. 2A, a plurality of driving boards according to an embodiment of the present invention is configured. The driving board includes a first driving board 110 and a second driving board 120. The first driving board 110 arranges the first driving unit 150a, and the second driving board 120 arranges the second driving unit 150b different from the first driving unit 150a. A portion of the first driving board 110 and a portion of the second driving board 120 overlap each other. This is because a part of the first driving board 110 overlaps with a part of the second driving board 120. In addition, a portion of the first driving board 110 and a portion of the second driving board 120 that overlap each other are connected to each other.

For example, the plasma display panel may receive the first driving signal supplied from the first driver 150a through the first driving board 110 and the first driving signal supplied from the first driver 150a. It can also be supplied through the second driving board 120 connected to the first driving board 110. Also, in the plasma display panel, the first driving signal supplied from the first driving unit 150a and the second driving signal supplied from the second driving unit 150b overlap each other so that the first driving board 110 and the second driving board ( It can be supplied through 120).

In addition, a part of the first driving board 110 and the second driving board 120 is an area such that the first driving board 110 and the second driving board 120 can be stably supported by overlapping each other. . This is based on the width w of the fixing holes 112 and 122, which is the first driving board 110 and the second driving board 120 among the overlapping areas of the first driving board 110 and the second driving board 120. The short width d formed in the direction transverse to the length is at least two times five times less than the width w of the fixing holes 112 and 122. When formed in this way, it is easy to secure the space between the first driving board 110 and the second driving board 120 as well as can be firmly fixed.

In FIG. 2B, (a) shows a first drive board, and (b) shows a second drive board.

The first driving board 110 includes a driving signal connecting part 113 connected to the printed wiring and a fixing hole 112 through which the fastening means for fastening the first driving board passes. The driving signal connection unit 113 of the first driving board is positioned on a portion of the first driving board 110 that overlaps with a portion of the second driving board 120. This is to secure the space of the first driving board 110. In addition, the driving signal connecting unit 113 of the first driving board is located on the opposite surface of the first driving unit 150a disposed on the first driving board 110.

The second driving board 120 includes a driving signal connecting portion 123 connected to the printed wiring and a fixing hole 122 through which the fastening means for fastening the second driving board passes. The driving signal connection part 123 of the second driving board is located in a part of the second driving board 120 overlapping with a part of the first driving board 110. This is for securing the space of the second driving board 120. In addition, the driving signal connecting unit 123 of the second driving board is located on the surface of the second driving unit 150b disposed on the second driving board 120.

The position of the driving signal connecting unit 113 of the first driving board and the driving signal connecting unit 123 of the second driving board is different because the first driving board 110 and the second driving board 120 overlap each other. This is for easily connecting the first driving board 110 and the second driving board 120. Therefore, the driving signal connecting unit 113 of the first driving board and the driving signal connecting unit 123 of the second driving board are connected to each other. In addition, the driving signal connecting unit 113 of the first driving board and the driving signal connecting unit 123 of the second driving board include a metal material which can supply a driving signal quickly.

3 is a view illustrating a coupling of a driving board in a plasma display device according to an embodiment of the present invention.

In FIG. 3, the parts described with reference to FIGS. 1 and 2B will be omitted. Referring to FIG. 3, the coupling between the first driving board and the second driving board according to an embodiment of the present invention is a fastening passing through the fixing hole 112 of the first driving board and the fixing hole 122 of the second driving board. Via means 160. The fastening means 160 may include a screw or a bolt. The use of screws and bolts in this way is because they are easy to engage and disengage. In addition, the fastening means 160 penetrating the fixing hole 112 of the first driving board and the fixing hole 122 of the second driving board for coupling the first driving board 110 and the second driving board 120. Among the screws and bolts described as an example, but is not limited thereto.

The fixing hole 112 of the first driving board is located in a portion of the first driving board 110 that overlaps with a portion of the second driving board 120. The fixing hole 122 of the second driving board is located in a portion of the second driving board 120 overlapping with a portion of the first driving board 110. As described above, the fixing hole 112 of the first driving board and the fixing hole 122 of the second driving board are positioned in a part of the first driving board 110 and the second driving board 120. This is because it is possible not only to stably couple between the second driving board 120 and the space between the first driving board 110 and the second driving board 120.

4 is a view illustrating a driving board of a plasma display device according to another exemplary embodiment.

Referring to FIG. 4, a plurality of driving boards according to another embodiment of the present invention is configured. The driving board includes a first driving board 110a and a second driving board 120a. In FIG. 4, previously described parts will be omitted.

A portion of the first driving board 110a overlaps with a portion of the second driving board 120a. The thickness d2 of the portion of the first driving board 110a overlapping the portion of the second driving board 120a may be the thickness of the first driving board 110a not overlapping the portion of the second driving board 120a. thinner than d1). In addition, a thickness d3 of a portion of the second driving board 120a overlapping a portion of the first driving board 110a may be equal to a thickness of the second driving board 120a not overlapping with a portion of the first driving board 110a. The thickness of the portion where the first driving board 110a and the second driving board 120a overlap is 0.5 to 1 times the thickness of the other portion. The thickness d1 of the first driving board 110a and the thickness d1 of the second driving board 120a are substantially the same thickness. The sum of the thickness d2 of the portion of the first driving board 110a and the thickness d3 of the portion of the second driving board 120a is substantially equal to the thickness d1 of the first driving board 110a, or More thicker, the sum of the thickness d2 of the portion of the first drive board 110a and the thickness d3 of the portion of the second drive board 120a is equal to one of the thickness d1 of the first drive board 110a. It is composed of more than two times. This is because the thicknesses d2 and d3 of the part of the first drive board 110a or the part of the second drive board 120a are made thinner than the thickness d1 of the first drive board 110a. This is because the coupling between the second driving board 120a and the second driving board 120a can be made more stable and the connection of the connecting portions 113a and 123a of the first driving board 110a and the second driving board 120a can be more stable.

5 is a view for explaining the structure of a plasma display panel of the plasma display device according to an embodiment of the present invention.

Referring to FIG. 5, a structure of a plasma display panel of a plasma display apparatus according to an embodiment of the present invention includes a front panel 310 including a front substrate 311 on which a scan electrode 312 and a sustain electrode 313 are formed. And the rear panel 320 including the rear substrate 321 on which the address electrode 323 intersecting the scan electrode 312 and the sustain electrode 313 described above are formed to be bonded at a predetermined interval.

Here, the scan electrode 312 and the sustain electrode 313 formed on the front substrate 311 are formed in parallel with each other to generate a discharge in the discharge cell and maintain the discharge of the discharge cell.

The scan electrode 312 and the sustain electrode 313 formed on the front substrate 311 emit light generated in the discharge cell to the outside, and also need to consider light transmittance and electrical conductivity in order to secure driving efficiency. Therefore, each of the scan electrode 312 and the sustain electrode 313 is a bus electrode 312b or 313b made of metal such as silver (Ag) and a transparent electrode made of transparent indium tin oxide (ITO). 312a, 313a).

An upper dielectric layer 314 may be formed on the front substrate 311 on which the scan electrode 312 and the sustain electrode 313 are formed to cover the scan electrode 312 and the sustain electrode 313.

Upper dielectric layer 314 limits the discharge current of scan electrode 312 and sustain electrode 313 and insulates between scan electrode 312 and sustain electrode 313.

A protective layer 315 may be formed on the upper dielectric layer 314 to facilitate a discharge condition. The protective layer 315 may be made of a material having a high secondary electron emission coefficient, for example, magnesium oxide (MgO).

On the other hand, the address electrode 323 formed on the rear substrate 321 is an electrode for supplying a data pulse to the discharge cell.

The lower dielectric layer 325 may be formed on the rear substrate 321 on which the address electrode 323 is formed to cover the address electrode 323.

A discharge space, that is, a partition wall 322 for partitioning the discharge cells is formed on the lower dielectric layer 325. In the discharge cells partitioned by the partition walls 322, a phosphor layer 324 is formed which emits visible light for image display during address discharge. For example, red (R), green (G), and blue (B) phosphor layers may be formed.

In the plasma display panel according to the exemplary embodiment described above, when a driving pulse is supplied to the scan electrode 312, the sustain electrode 313, and the address electrode 323, the plasma display panel may be disposed in the discharge cell partitioned by the partition wall 322. Discharge occurs in the image to realize the image.

In FIG. 5, only the plasma display panel according to the exemplary embodiment is illustrated and described, but it is not limited thereto.

As described above, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features.

Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following 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, by improving the driving board of the plasma display device according to an embodiment of the present invention, it is easy to secure a space of the driving board, and the work process can be simplified.

In addition, there is an effect of reducing the unit cost of the plasma display device by improving the driving board of the plasma display device according to an embodiment of the present invention.

Claims (7)

A plasma display panel; A heat dissipation frame disposed on a rear surface of the plasma display panel; And A driving board disposed on a rear surface of the heat dissipation frame; Including, The driving board includes a first driving board and a second driving board, And a portion of the first driving board and a portion of the second driving board overlap each other and are connected to each other. The method of claim 1, And the first driving board and the second driving board each include a connection part electrically connected to each other, and a fixing hole through which the fastening means fastening to each other passes. The method of claim 2, And a connecting portion of the first driving board and a connecting portion of the second driving board are disposed on opposite surfaces thereof. The method of claim 2, And the connection part comprises a conductive metallic material. The method of claim 1, The thickness of the portion where the first driving board and the second driving board overlap is thinner or substantially the same as the thickness of the other portion. The method of claim 5, wherein And the thickness of the portion where the first driving board and the second driving board overlap is 0.5 to 1 times the thickness of the other portion. The method of claim 1, And a step width of a portion where the first driving board and the second driving board overlap is two or more times and five times or less the width of the fixing hole.

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