KR20070075655A - Plasma display apparatus - Google Patents

Abstract

A plasma display device is provided to electrically connect a first scan board and a second scan board using a jointing member penetrating first and second holes each formed on the first and second scan boards. A plasma display panel(201) has scan electrodes. A first scan board(204) generates a drive voltage for driving the scan electrodes, and a first hole(H1) is formed on the first scan board. A second board(203) supplies the drive voltage generated by the first scan board to the scan electrodes and a voltage for scanning the scan electrodes, and a second hole(H2) is formed on the second scan board. The first and second scan boards are electrically connected to each other by a jointing member(206) passing through the first and second holes.

Description

Plasma Display Apparatus {Plasma Display Apparatus}

1A to 1B are diagrams illustrating a fastening method of a first scan board and a second scan board in a conventional plasma display apparatus.

2A to 2B are diagrams for explaining an example of the structure of the plasma display device of the present invention.

3A to 3B are diagrams for explaining an example of the plasma display panel.

4 is a diagram for explaining a circuit mounted on a first scan board and a second scan board.

***** Explanation of symbols for the main parts of the drawing *****

204: first scan board 203: second scan board

205a: a first electrically conductive layer formed on the first scan board

206b: a second electrically conductive layer formed on the second scan board

H1: first hole formed in the first scan board

H2: second hole formed in the second scan board

Fastening means: 206

The present invention relates to a display device, and more particularly, to a plasma display device.

In general, among the display apparatuses, a plasma display apparatus includes a barrier lip formed between a front substrate and a rear substrate of a plasma display panel on which an image is displayed, and forms one unit cell. Main discharge gas such as Ne), helium (He) or a mixture of neon and helium (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 plasma display panels are not only easy to thin and large in size, but also greatly improved as a result of recent technology developments, and thus are attracting attention as next generation display devices.

Here, in the conventional plasma display apparatus, the first scan board generating a predetermined driving voltage for driving the scan electrode Y formed on the plasma display panel and the driving voltage generated by the first scan board are the scan electrodes Y. A method of fastening the second scan board for supplying and supplying a voltage for scanning the scan electrode Y is as follows with reference to FIGS. 1A to 1B.

1A to 1B are diagrams illustrating a fastening method of a first scan board and a second scan board in a conventional plasma display apparatus.

First, referring to FIG. 1A, the first scan board 102 and the second scan board 101 are fastened with a connector 103a. Accordingly, the first scan board 102 and the second scan board 101 are electrically connected.

Since the connector 103a itself is expensive, there is a problem of increasing the overall manufacturing cost of the plasma display device. In addition, the process of forming the connector 103a on the first scan board 102 or the second scan board 101 is relatively complicated, thereby increasing the overall process time.

Next, referring to FIG. 1B, the first scan board 102 and the second scan board 101 are fastened by the conductive metal 103b.

In more detail, the conductive metal material 103b is fastened through the holes formed in the first scan board 102 and the second scan board 101 to thereby secure the first scan board 102 and the second scan board 101. Electrically connected.

When the first scan board 102 and the second scan board 101 are connected using the conductive metal 103b, a process of fastening the first scan board 102 and the conductive metal 103b is performed. And a process of fastening the second scan board 101 to the conductive metal material 103b, which increases the process time and increases the manufacturing cost due to the use of the conductive metal material 103b. have.

In order to solve this problem, an object of the present invention is to provide a plasma display device in which the fastening structure between the first scan board and the second scan board is improved, thereby reducing the material cost and improving productivity.

In order to achieve the above object, the present invention generates a plasma display panel including a scan electrode and a predetermined driving voltage for driving the scan electrode and generates a first scan board and a first scan board on which a first hole is formed. Supplying a driving voltage to the scan electrode, supplying a voltage for scanning the scan electrode, and passing through the second scan board and the first hole and the second hole in which the second hole is formed; It characterized in that it comprises a fastening means for electrically connecting and fastening to each other.

In addition, the fastening means is characterized in that the screw (Type).

In addition, the fastening means is characterized in that made of an electrically conductive material.

In addition, the number of the first hole and the second hole is characterized in that the same.

The first scan board may further include a first electrically conductive layer formed around the first hole, and the second scan board may further include a second electrically conductive layer formed around the second hole.

Further, the first electrically conductive layer and the second electrically conductive layer are in contact with each other by fastening means.

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

2A to 2B are diagrams for explaining an example of the structure of the plasma display device of the present invention.

First, referring to FIG. 2A, the plasma display apparatus of the present invention includes a plasma display panel 201, a first scan board 204, a second scan board 203, and a fastening means 206. Here, it is preferable to further include a frame 200 supporting the plasma display panel 201 and on which the first scan board 204 and the second scan board 203 are disposed.

Here, a first hole H1 is formed in the first scan board 204, and a second hole H2 is formed in the second scan board 203.

The fastening means electrically connects the first scan board 204 and the second scan board 203 through the first hole H1 and the second hole H2.

An electrode, preferably a scan electrode Y, is formed in the plasma display panel 201.

The plasma display panel 201 will be described in more detail with reference to FIGS. 3A to 3B.

3A to 3B are diagrams for explaining an example of the plasma display panel.

First, referring to FIG. 3A, the plasma display panel includes a front panel 300 having a scan electrode 302 and Y and a sustain electrode 303 and Z formed on a front substrate 301 which is a display surface on which an image is displayed, and a rear substrate which forms a back surface. The rear panel 310 on which the address electrodes 313 and X are formed to intersect the scan electrode 302 and the sustain electrode 303 described above is coupled side by side with a predetermined distance therebetween.

The front panel 300 includes a scan electrode 302 and a sustain electrode 303 for mutually discharging in a discharge space, that is, a discharge cell, and maintaining light emission of the discharge cell.

The scan electrodes 302 and Y and the sustain electrodes 303 and Z are covered by one or more top dielectric layers 304 that limit the discharge current and insulate the electrode pairs, and the discharge on top of the top dielectric layer 304. A protective layer 305 is formed to facilitate the condition.

The protective layer 305 is formed through a method of depositing a material such as magnesium oxide (MgO) over the upper dielectric layer 304.

The rear panel 310 includes a plurality of discharge spaces, that is, barrier ribs 312 of stripe type (or well type) for partitioning the discharge cells. Also, a plurality of address electrodes 313 and X are provided for supplying data pulses.

Here, in the discharge cells partitioned by the partition walls, the phosphor layer 314 that emits visible light for image display upon address discharge, preferably red (R), green (G), and blue (Blue: B) a phosphor layer is formed.

A lower dielectric layer 315 is formed between the address electrodes 313 and X and the phosphor layer 314 to insulate the address electrodes 313 and X.

Here, the scan electrodes 302 and Y and the sustain electrodes 303 and Z are preferably made of a conductive metal material. For example, it may be made of silver (Ag) material or indium tin oxide (ITO) material.

In particular, in consideration of light transmittance and electrical conductivity, the scan electrodes 302 and Y and the sustain electrodes 303 and Z are preferably formed to include a bus electrode made of silver and a transparent electrode made of ITO. Looking at this in more detail as shown in Figure 3b.

3B, scan electrodes 302 and Y and sustain electrodes 303 and Z are formed between the front substrate 301 and the upper dielectric layer 304 as in region A of FIG. 3A.

Referring to FIG. 3B, the scan electrodes 302 and Y and the sustain electrodes 303 and Z of the plasma display panel of the present invention are formed to generate surface discharge, and emit light generated in the discharge cell to the outside. In order to secure driving efficiency, the transparent electrodes 302a and 303a formed of a transparent ITO material and the bus electrodes 302b and 303b made of an opaque metal material are preferably included.

As such, the reason why the scan electrodes 302 and Y and the sustain electrodes 303 and Z include the transparent electrodes 302a and 303a is that when visible light generated in the discharge cells is emitted to the outside of the plasma display panel. To be released effectively.

In addition, the reason why the scan electrodes 302 and Y and the sustain electrodes 303 and Z include the bus electrodes 302b and 303b is that the scan electrodes 302 and Y and the sustain electrodes 303 and Z are transparent electrodes. In the case of including only 302a and 303a, the driving efficiency can be reduced because the electrical conductivity of the transparent electrodes 302a and 303a is relatively low, so that the transparent electrodes 302a and 303a can cause such a reduction in driving efficiency. To compensate for the low electrical conductivity.

Here, only one example of the plasma display panel of the present invention is shown and described with reference to FIGS. 3A to 3B, and the present invention is not limited to the plasma display panel having the structure of FIGS. 3A to 3B. For example, only the case where the upper dielectric layer 304 and the lower dielectric layer 315 are one layer is illustrated, but at least one or more of the upper dielectric layer 304 and the lower dielectric layer 315 are plural. It is also possible to form a layer of.

That is, the plasma display panel which can be applied to the plasma display apparatus of the present invention is formed with the scan electrodes 302 and Y, and other conditions are acceptable.

The first scan board 204 and the second scan board 203 supply a predetermined voltage to the scan electrodes 302 and Y of the plasma display panel to drive the scan electrode Y.

More preferably, the first scan board 204 generates a predetermined driving voltage for driving the scan electrode Y of the plasma display panel.

The second scan board 203 supplies the driving voltage generated by the first scan board 204 to the scan electrode Y, and also supplies a voltage for scanning the scan electrode Y.

In order to perform such a function, a predetermined circuit is mounted on the first scan board 204 and the second scan board 203. This will be described with reference to FIG. 4 attached thereto.

4 is a diagram for describing a circuit mounted on a first scan board and a second scan board.

Referring to FIG. 4, a circuit mounted on the first scan board 204 and the second scan board 203, that is, a circuit for driving the scan electrode Y of the plasma display panel, is illustrated.

A circuit block that can be mounted on the first scan board 204 is indicated by a reference numeral 500, and a circuit block that can be mounted on the second scan board 203 is indicated by a reference numeral 600.

For example, circuits that may be mounted on the first scan board 204 may include the energy recovery circuit unit 400, the sustain voltage supply controller 410, the base voltage supply controller 420, the setup voltage supply controller 430, and the first circuit. The first blocking unit 480 and the second blocking unit 490 may be included.

In addition, circuits that may be mounted on the second scan board 203 may include a scan reference voltage supply controller 440, a set down voltage supply controller 450, and a scan voltage supply controller 460.

Here, although not mounted on the first scan board 204 or the second scan board 203, the scan drive integrated circuit unit 470 that performs a predetermined switching operation is preferably further included.

Here, the energy recovery circuit 400 mounted on the first scan board 204 supplies a pre-stored voltage to the scan electrode Y of the plasma display panel through resonance, and supplies reactive energy of the scan electrode Y to resonance. Recover through

The sustain voltage supply control unit 410 includes a sustain voltage supply control switch unit S3, and supplies the sustain voltage Vs to the scan electrode Y by using the sustain voltage supply control switch unit S3. To control.

The base voltage supply control unit 420 includes a base voltage supply control switch unit S4, and controls the supply of the base voltage GND to the scan electrode Y by using the base voltage supply control switch unit S4. do.

The setup voltage supply control unit 430 includes a setup voltage supply control switching unit S5 and a second variable resistor unit VR1, and the setup voltage supply control switching unit S5 and the second variable resistor unit VR1 are connected to each other. To control the supply of the setup voltage to the scan electrode Y.

In addition, the set-down voltage supply control unit 450 mounted on the second scan board 203 may include a down ramp supply control switch unit S10 and a control terminal of the down ramp supply control switch unit S10, preferably a gate ( And a second variable resistor portion VR2 connected to the Gate terminal. In addition, the set-down voltage supply control unit 450 supplies a falling ramp waveform in which the voltage gradually falls to the scan electrode Y by using the falling ramp supply control switch unit S10 and the second variable resistor unit VR2. do.

The negative scan voltage supply control unit 460 includes a negative scan voltage supply control switch unit S11, and scans the negative scan voltage (-Vy) using the negative scan voltage supply control switch unit S11. It supplies to the electrode Y.

The scan reference voltage supply controller 440 controls the supply of the scan reference voltage Vsc supplied by the scan reference voltage source to the scan electrode Y.

In addition, the scan drive integrated circuit unit 470 allows a predetermined driving voltage to be supplied to the scan electrode Y through a predetermined switching operation.

In addition, the first scan board 204 includes a first blocking unit 480 for preventing a reverse current between the base voltage supply controller 420, the negative scan voltage supply controller 460, and the setdown voltage supply controller 450. ) And the second blocking portion 490 may be further mounted.

In consideration of the above, the first scan board 204 generates a driving voltage for driving the scan electrode Y of the plasma display panel such as the sustain voltage Vs, the base voltage GND, and the setup voltage Vst. Let's do it.

In addition, the second scan board 203 generates and supplies a voltage for scanning the scan electrode Y of the plasma display panel such as the scan reference voltage Vsc and / or the negative scan voltage −Vy. In addition, driving voltages such as the sustain voltage Vs, the base voltage GND, and the setup voltage Vst generated by the first scan board 204 are transferred to the scan electrode Y through the data drive integrated circuit unit 470. Supply.

The first scan board 204 and the second scan board 203 are fastened by the fastening means 206 and are electrically connected to each other, where the first scan board 204 and the second scan board 203 are connected. Preferably, an electrically conductive layer is formed on a surface where the first scan board 204 and the second scan board 203 abut to be electrically connected.

More specifically, the first scan board 204 is further formed with a first electrically conductive layer 205a around the first hole H1, and the second scan board 203 also has a second hole H2. A second electrically conductive layer 205b is further formed in the periphery.

Herein, the materials of the first and second electrically conductive layers 205a and 205b formed on the first and second scan boards 204 and 203, respectively, are preferably conductive metal materials such as gold, silver, and copper plate.

Thus, as shown in FIG. 2B, when the first scan board 204 and the second scan board 203 are fastened by the fastening means 206, the first conductive layer 205a and the second conductive layer 205b are mutually opposite. The first scan board 204 and the second scan board 203 are electrically connected to each other.

Here, it is more preferable that the fastening means 206 is formed of an electrically conductive material in order to further improve the electrical conductivity between the first scan board 204 and the second scan board 203. In addition, it is preferable that the fastening means 206 is a fastening means of a screw type to provide sufficient fastening strength.

Alternatively, the fastening means 206 may be fixed not only to the screw type but also to the pin type or the clip type.

In addition, the number of the first holes H1 of the first scan board 204 and the number of the second holes H2 of the second scan board 203 through which the fastening means 206 penetrate is preferably the same.

As described above, the fastening means 206 penetrates through the first hole H1 and the second hole H2 formed in the first scan board 204 and the second scan board 203 so that the first scan board ( By electrically connecting the 204 and the second scan board 203, it is not necessary to use a connector or other conductive metal or the like as in the prior art in Figs. 1A to 1B, thereby reducing the overall manufacturing cost. In addition, during the fastening process of the first scan board 204 and the second scan board 203, a fastening means such as a screw is connected to the first hole H1 formed in the first scan board 204 and the second scan board 203; The entire process time can be shortened because it only needs to penetrate the second hole H2.

As a result, manufacturing cost may be reduced and productivity may be improved.

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 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, the present invention improves the structure of fastening the first scan board and the second scan board, thereby reducing manufacturing costs and simplifying the manufacturing process.

Claims (6)

A plasma display panel including a scan electrode; A first scan board generating a predetermined driving voltage for driving the scan electrode and having a first hole formed therein; A second scan board supplying a driving voltage generated by the first scan board to the scan electrode, supplying a voltage for scanning the scan electrode, and forming a second hole; And Fastening means for electrically coupling the first scan board and the second scan board to each other through the first hole and the second hole; Plasma display device comprising a. The method of claim 1, The fastening means is a plasma display device, characterized in that the screw (Type). The method of claim 1, The fastening means is a plasma display device, characterized in that made of an electrically conductive material. The method of claim 1, The number of the first hole and the second hole is the same plasma display device. The method of claim 1, The first scan board is further formed with a first electrically conductive layer around the first hole, And a second electrically conductive layer is further formed around the second hole in the second scan board. The method of claim 5, And the first electrically conductive layer and the second electrically conductive layer are in contact with each other by the fastening means.

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