KR100705276B1 - Driving device of plasma display panel - Google Patents

Abstract

The present invention relates to a driving device of a plasma display panel in which a data board is omitted, and omits the data board so that low-voltage image data supplied from a control board is directly supplied to a flexible substrate, thereby reducing costs due to the data board. As a result, the plasma display panel can reduce the manufacturing cost of the driving apparatus. In addition, the low-voltage image data supplied from the above-described control board to the flexible substrate is set as low voltage differential signals (LVDS) to be supplied to the address electrodes of the plasma display panel, thereby reducing the influence of electromagnetic noise. It is possible to solve the problem of the voltage drop due to the increase in the size of the plasma display panel.

The apparatus for driving a plasma display panel according to the present invention includes a low voltage image data transmitter for converting an image signal input from the outside into low voltage image data and transmitting the low voltage image data, and low voltage image data for receiving the low voltage image data to restore the image signal. And a data drive integrated circuit for supplying the image signal restored by the receiver and the low voltage image data receiver to an address electrode of the plasma display panel through a switching operation. The low voltage image data receiver and the data drive integrated circuit are flexible. Characterized in that formed integrally on one flexible substrate having a.

Description

Apparatus for Driving of Plasma Display Panel

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

2 is a view for explaining an arrangement structure of electrodes in a typical plasma display panel.

3 is a diagram for explaining a configuration of a driving apparatus of a general plasma display panel.

4 is a view for explaining in more detail a data drive integrated circuit for supplying the image data supplied from the data board to the address electrode of the plasma display panel in a conventional drive device of the plasma display panel.

FIG. 5 is a view for explaining a process in which image data transmitted from a control board is supplied to an address electrode of a plasma display panel through a data drive integrated circuit formed on a flexible flexible substrate.

Fig. 6 is a diagram for explaining the configuration of a drive device for a plasma display panel of the present invention.

7 is a view for explaining the configuration of a flexible substrate in the driving apparatus of the plasma display panel of the present invention in more detail.

FIG. 8 is a view for explaining a process in which image data transmitted from a control board is supplied to an address electrode of a plasma display panel through a low voltage image data receiver and a data drive integrated circuit formed on a flexible flexible substrate.

9 is a view for explaining the overall operation of the plasma display panel of the present invention.

10 is a view for conceptually explaining a method of transmitting image data between a control board and a flexible substrate.

Fig. 11 is a view for explaining an example of image data transmitted by a low voltage image data transmitting unit in the driving apparatus of the plasma display panel according to the present invention.

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

60: plasma display panel 61: control board

62: Scan Board 63: Sustain Board

64: flexible substrate 65: first transmission path

66: second transmission path 67: third transmission path

The present invention relates to a plasma display panel, and more particularly, to a driving apparatus of a plasma display panel in which a data board is omitted.

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 is a view showing the 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 upper dielectric layers 104 that limit the discharge current and insulate the electrode pairs, and to facilitate the discharge conditions on the upper dielectric layer 104 top surface. A protective layer 105 on which magnesium oxide (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.

In the plasma display panel having such a structure, a plurality of discharge cells are formed in a matrix arrangement. Such a discharge cell is formed at a point where the scan electrode or the sustain electrode intersects the above-described address electrode. The electrode arrangement for forming the plurality of discharge cells in a matrix array structure is as follows.

2 is a view for explaining an arrangement structure of electrodes in a general plasma display panel.

As illustrated in FIG. 2, in a typical plasma display panel 200, for example, scan electrodes Y1 to Yn and sustain electrodes Z1 to Zn are arranged side by side, and address electrodes X ₁ to Xm are arranged to intersect with each other. Is formed.

The driving apparatus of the plasma display panel for applying a predetermined driving signal to each of the electrodes of the plasma display panel 200 having the arrangement structure is connected. Accordingly, a driving signal is applied to the electrodes of the plasma display panel 200 by the driving device described above to implement an image. The structure in which the driving device is connected to the plasma display panel 200 is as shown in FIG. 3.

3 is a diagram for describing a configuration of a driving apparatus of a general plasma display panel.

As shown in FIG. 3, a scan board 32 and a sustain electrode Z for driving the scan electrode Y of the plasma display panel 30 including a front panel (not shown) and a rear panel (not shown). Control for controlling the sustain board 33 for driving (), the data board 34 for driving the address electrode (X), the scan board 32 and the sustain board 33 and the data board 34 described above. Board 31.

The scan board 32 generates scan drive pulses such as reset pulses, scan pulses, and sustain pulses and supplies them to the scan electrodes Y. The above-described scan board 32 includes the above-described scan drive pulses to the scan electrode Y of the plasma display panel 30 via a flexible printed film (FPC) (not shown) or the like via a signal transmission path. To supply.

The sustain board 33 generates sustain drive pulses such as a sustain pulse and a bias voltage Vz to supply the sustain electrode Z to the sustain board 33. Here, the sustain board 33 also supplies the aforementioned sustain drive pulses to the sustain electrode Z via a signal transmission path such as a predetermined FPC (not shown), similarly to the scan board 32 described above.

The data board 34 generates address drive pulses such as data pulses. The data board 34 is also supplied to the address electrode X of the plasma display panel 30 via a signal transmission path such as a predetermined FPC (not shown).

The control board 31 generates X, Y, Z timing control signals. The control board 31 supplies the Y timing control signal to the scan board 32 via the first transmission path 35. The Z timing control signal is supplied to the sustain board 33 via the second transmission path 36, and the X timing control signal is supplied to the data board 34 via the third transmission path 37.

Meanwhile, the X timing control signal transmitted from the control board 31 to the data board 34 is a low voltage image data signal for implementing an image supplied from the outside on the plasma display panel 30. After the data signal is transmitted to the data board 34, the address electrode X of the plasma display panel 30 as a data pulse through a data drive integrated circuit (not shown) mounted on a flexible flexible substrate (not shown). Supplied to.

Herein, the data drive integrated circuit mounted on the flexible substrate 38 having the aforementioned flexibility will be described in more detail with reference to FIG. 4.

FIG. 4 is a diagram for describing in more detail a data drive integrated circuit for supplying a low voltage image data supplied from a data board to an address electrode of a plasma display panel in a conventional plasma display panel driving apparatus.

Referring to FIG. 4, in the conventional plasma display panel driving apparatus, a flexible flexible substrate 38 and a data drive integrated circuit 40 are mounted. The data drive integrated circuit 40 receives image data having a low voltage from the data board 34 of FIG. 3 through a signal transmission line having a reference numeral 41, and performs a predetermined switching operation corresponding to the image data thus supplied. The data pulses are supplied to the address electrodes of the plasma display panel through the signal transmission line having the sign 42.

As such, the data drive integrated circuit 40 formed on the flexible flexible substrate 38 supplies the image data transmitted from the control board 31 of FIG. 3 to the address electrode X of the plasma display panel 30. The process of doing this will be described with reference to FIG. 5.

FIG. 5 is a diagram for describing a process of supplying image data transmitted from a control board to an address electrode of a plasma display panel through a data drive integrated circuit formed on a flexible flexible substrate.

As shown in FIG. 5, the control board 31 generates an X timing control signal, that is, a low voltage image data signal, from a video signal supplied from the outside through a predetermined signal processing process. For example, the control board 31 generates aligned low voltage image data through processes such as inverse gamma correction, subfield mapping, and data alignment. As a result, the X timing control signal is low voltage image data that is aligned during data alignment.

The image data is transmitted to the data board 34 through the third transmission line 37. The process of transmitting the aligned low voltage image data from the control board 31 to the data board 34 may include a low voltage at which the low voltage image data transmitter 50 included in the control board 31 is arranged. When transmitting the image data of the low voltage image data receiving unit 51 of the data board 34 is performed by receiving it.

Thereafter, the sorted image data received by the low voltage image data receiver 51 of the data board 34 is supplied to the data drive integrated circuit 40 formed on the flexible substrate 38.

In the conventional plasma display panel driving apparatus having such a structure, the low voltage image data receiving unit 51 and the plasma display panel which receive the aligned low voltage image data, that is, the X timing control signal transmitted from the control board 31 described above. Data drive integrated circuits 40 for supplying data pulses to the address electrodes X are mounted on different substrates. That is, the low voltage image data receiving unit 51 is mounted on the data board 34, and the data drive integrated circuit 40 is mounted on the flexible flexible board 38. As a result, both the data board 34 and the flexible substrate 38 are required, which increases the manufacturing cost of the driving apparatus of the plasma display panel.

Meanwhile, the X timing control signal supplied by the above-described control board 31, that is, the aligned low voltage image data is transmitted at a high frequency to drive a data driver integrated circuit (not shown) mounted on the data board 34. Typically, the voltage level at the high level is 5V and the voltage level at the low level is 0V. The video data arranged in this manner is a low voltage signal of 5V or less.

As such, the conventional control board 31 transmits a high frequency X timing control signal, that is, low voltage image data to the data driver integrated circuit, to generate a large amount of electromagnetic noise, thereby affecting other driving circuits.

In particular, as the size of the plasma display panel 30 increases, the distance from the control board 31 to the data driver IC increases, and thus the third transmission line 37 connecting the data driver IC to the control board 31 is connected. The length of the is also long, which makes the driving circuit more vulnerable to electromagnetic noise.

Furthermore, when the length of the third transmission line 37 becomes longer, the magnitude of the electrical resistance also increases, which causes the data driver integrated circuit not to recognize the high level due to the voltage drop in the third transmission line 37. There is this.

The present invention to solve the above problems is to provide a plasma display panel drive device that can reduce the manufacturing cost of the plasma display panel drive device, and to ensure the reliability of the electromagnetic noise and the line resistance of the signal transmission line. There is a purpose.

The driving apparatus of the plasma display panel according to the present invention for achieving the above object is a low voltage image data transmission unit for converting the image signal input from the outside into low voltage image data and to transmit the low voltage image data to restore the image signal The low voltage image data receiving unit and the low voltage image data receiving unit include a data drive integrated circuit for supplying the restored image signal to the address electrode of the plasma display panel through a switching operation, wherein the low voltage image data receiving unit described above And the data drive integrated circuit are integrally formed on one flexible substrate having flexibility.

The above-described data drive integrated circuit is characterized in that at least one or more are included on one flexible substrate.

Also, the low voltage image data includes a first signal and a second signal inverted from the first signal, and the low voltage image data transmitter converts the image signal into a first signal and a second signal and transmits the signal to the low voltage image data receiver. Characterized in that.

The low voltage image data receiver may restore the image signal by using a difference between the voltage levels of the first signal and the second signal transmitted by the low voltage image data transmitter.

In addition, the first signal and the second signal is characterized in that the Low Voltage Differential Signals (LVDS).

In addition, the difference between the voltage level of the first signal and the second signal is characterized in that the 0.3V or more and 0.4V or less.

The low voltage image data transmitter may be mounted on a control board for controlling the driving of the plasma display panel.

Hereinafter, an embodiment of a driving apparatus of a plasma display panel of the present invention will be described in detail with reference to the accompanying drawings.

6 is a view for explaining the configuration of a driving device of the plasma display panel of the present invention.

As shown in FIG. 6, a scan board 62 and a sustain electrode Z for driving the scan electrode Y of the plasma display panel 60 including a front panel (not shown) and a rear panel (not shown). To control the sustain board 63 for driving), the flexible board 64 for driving the address electrode X, the scan board 62 and the sustain board 63 and the flexible board 34 described above. It includes a control board 61 for. That is, the data board is omitted in comparison with the conventional FIG. As described above, driving in the driving apparatus of the plasma display panel of the present invention in which the data board of FIG. 6 is omitted will be apparent from the following description.

The scan board 62 generates scan drive pulses such as reset pulses, scan pulses, and sustain pulses and supplies them to the scan electrodes Y. The above-described scan board 62 may use the above-described scan driving pulses to the scan electrode Y of the plasma display panel 60 via a flexible printed film (FPC) (not shown) or the like via a signal transmission path. To supply.

The sustain board 63 generates a sustain driving pulse such as a sustain pulse and a bias voltage Vz to supply the sustain electrode Z to the sustain electrode Z. Here, the sustain board 63 also supplies the aforementioned sustain drive pulses to the sustain electrode Z via a signal transmission path such as a predetermined FPC (not shown), similarly to the scan board 62 described above.

When the flexible substrate 64 is flexible, the aligned low voltage image data (X timing control signal) transmitted from the control board 61 is received to restore the image signal to the aligned image data, and restore the image. The signal is supplied to the address electrode of the plasma display panel through a switching operation with a data pulse. That is, the flexible board 64 of the present invention of FIG. 6 performs the operation of the data board of FIG. 3 as compared with the conventional FIG. 3.

The control board 61 generates X, Y, Z timing control signals. The control board 61 supplies the Y timing control signal to the scan board 62 via the first transmission path 65. The Z timing control signal is supplied to the sustain board 63 via the second transmission path 66, and the X timing control signal is supplied to the flexible substrate 64 via the third transmission path 67.

Meanwhile, the X timing control signal transmitted from the above-described control board 61 to the flexible substrate 64 is an aligned low voltage image data for implementing an image supplied from the outside on the plasma display panel 60. The aligned low voltage image data is received by a low voltage image data receiver (not shown) mounted on a flexible flexible substrate 64 and then plasma display as a data pulse through a data drive integrated circuit (not shown). It is supplied to the address electrode X of the panel 60.

Herein, the configuration of the flexible substrate 64 having the aforementioned flexibility will be described in more detail with reference to FIG. 7.

7 is a view for explaining the configuration of a flexible substrate in a driving apparatus of the plasma display panel of the present invention in more detail.

Referring to FIG. 7, a low voltage image data receiving unit 71 and a data drive integrated circuit 73 are mounted on a flexible substrate 64 having flexibility in the driving apparatus of the plasma display panel of the present invention. That is, the low voltage image data receiver 71 and the data drive integrated circuit 73 are integrally formed on one flexible substrate 64 having flexibility.

In addition, it is preferable that at least one of the above-described data drive integrated circuits 73 are included on one flexible substrate 64. That is, one data drive integrated circuit 73 is included on one flexible substrate 64 or two or more data drive integrated circuits 73 are included. As such, the number of data drive integrated circuits 73 included on one flexible substrate 64 may be adjusted.

Here, the low voltage image data receiver 71 receives the low voltage data (X timing control signal) arranged from the control board 61 of FIG. 6.

The data drive integrated circuit 73 receives the low voltage image data received by the low voltage image data receiver 71 described above through a signal transmission line having a sign 72, and performs a predetermined switching corresponding to the received image data. The data pulse is supplied to the address electrode (X) of the plasma display panel by the signal transmission line (74).

As such, the low voltage image data receiver 71 and the data drive integrated circuit 73 formed on the flexible flexible substrate 64 transmit the image data transmitted from the control board 61 of FIG. 6 to the plasma display panel 60. Referring to FIG. 8, a process of supplying to the address electrode X of FIG.

FIG. 8 is a view for explaining a process of supplying image data transmitted from a control board to an address electrode of a plasma display panel through a low voltage image data receiver and a data drive integrated circuit formed on a flexible flexible substrate.

As shown in FIG. 8, the control board 61 generates an X timing control signal, that is, aligned low voltage image data, through a predetermined signal processing process from an image signal supplied from the outside. For example, the control board 61 generates the aligned low voltage image data through processes such as inverse gamma correction, subfield mapping, and data alignment. As a result, the X timing control signal is image data aligned in the data alignment process.

The aligned image data is transmitted to the flexible substrate 64 through the third transmission line 67. The process of transmitting the aligned image data from the control board 61 to the flexible 64 may be performed when the low voltage image data transmitter 80 included in the control board 61 transmits the aligned image data. The low voltage image data receiving portion 71 of the substrate 64 is performed by receiving it.

Subsequently, when the low voltage image data receiving unit 71 of the above-described flexible substrate 64 supplies the aligned low voltage image data to the data drive integrated circuit 73, the data drive integrated circuit 73 is described above. The data pulse is supplied to the address electrode of the plasma display panel through a switching operation corresponding to one low voltage image data.

In the apparatus for driving a plasma display panel of the present invention having such a structure, a low voltage image data signal receiver 51 and a plasma display for receiving the X timing control signal transmitted from the above-described control board 61, that is, aligned low voltage data. A data drive integrated circuit 730 for supplying data pulses to the address electrode X of the panel is integrally mounted on one flexible substrate of reference numeral 64. Accordingly, the conventional data board 34 of FIG. 3 can be omitted, thereby reducing the manufacturing cost of the driving apparatus of the plasma display panel.

The overall operation of the driving apparatus of the plasma display panel of the present invention having such a structure will be briefly described with reference to FIG.

9 is a view for explaining the overall operation of the plasma display panel of the present invention.

As shown in FIG. 9, in the apparatus for driving a plasma display panel according to the present invention, the control board 61 of FIG. 6 includes an inverse gamma correction unit 90, a gain adjustment unit 91, a halftone adjustment unit 92, The subfield mapping unit 93, the data aligning unit 94, and the low voltage image data transmitting unit 95, and the flexible substrate 64 of FIG. 6 includes a low voltage image data receiving unit 96 and a data drive integrated circuit. 97).

As such, the reason why the control board 61 and the flexible board 64 of FIG. 6 are distinguished is because the flexible board 64 receives low-voltage image data arranged from the control board 61.

Here, referring to the operation of the control board 61, the inverse gamma correction unit 90 performs inverse gamma correction on R, G, and B image signals input from an external, for example, video signal controller (VSC).

The gain adjusting unit 91 adjusts a data level with respect to the image signal inversely gamma corrected by the inverse gamma correction unit 90 described above.

The halftone adjusting unit 92 performs error diffusion or dithering on the image signal whose data level is adjusted to improve gray scale expression.

The subfield mapping unit 93 maps the susfield to the image signal halftone adjusted by the halftone adjusting unit 92 described above.

The data arranging unit 94 rearranges the susfield-mapped image signal for each subfield.

The low voltage image data transmitter 95 converts the image signals rearranged by the data sorter 94 into subfields into low voltage image data, and preferably low voltage differential signals (LVDS). do. That is, the low voltage image data transmitter 95 converts the rearranged image data into subfields and converts the image data into low voltage image data and data inverted from the low voltage image data. For example, the video signal is converted into a first signal and a second signal inverted from the first signal, and transmitted. In this case, it is preferable that the difference between the voltage levels of the signals converted by the low voltage image data transmitter 95, that is, the difference between the voltage levels of the first and second signals, is 0.3V or more and 0.4V or less.

Next, an operation of the flexible substrate 64 that receives the image data transmitted from the low voltage image data transmitter 95 of the control board 61 and performs a predetermined signal processing process will be described. 96 converts the received low voltage image data, preferably the low voltage differential signal LVDS, into an original image signal and supplies it to the data drive integrated circuit 97. That is, the low voltage image data receiving unit 96 reconstructs the original image signal by detecting the difference between the low voltage image data, the low voltage image data, and the inverted data. For example, the video signal transmitted by the low voltage image data transmitter 95 is restored and supplied to the data drive integrated circuit 97 by using the difference between the first signal and the second signal.

In addition, the data drive integrated circuit 97 supplies the restored image signal supplied to the address electrode of the plasma display panel as a data pulse through a predetermined switching process.

Here, an example of a method of transmitting and receiving low voltage image data between the above-described control board 61 and the flexible substrate 64, that is, between the low voltage image data transmitter 95 and the low voltage image data receiver 96 is shown in FIG. Looking at with reference to Figure 11 as follows.

10 is a view for conceptually explaining a method of transmitting image data between a control board and a flexible substrate.

Referring to FIG. 10, a low voltage differential signal in a method of transmitting and receiving low voltage image data between the control board and the flexible substrate of FIG. 9, that is, between the low voltage image data transmitter 95 and the low voltage image data receiver 96. A transmission / reception method using (LVDS) is shown.

In the video data transmission / reception method using such a low voltage differential signal, for example, as shown in FIG. 10, the video signal transmitted by the low voltage video data transmitter 95 has a predetermined first pair and a second signal. Voltage level difference, for example, 350mV, that is, the form having a difference of 0.35V. Here, in FIG. 5, the voltage difference between the first signal and the second signal is set to 0.35V. However, the voltage difference between the first signal and the second signal is only one example of the voltage difference between the first signal and the second signal, but is not limited thereto. This voltage difference is preferably 0.3V or more and 0.4V or less.

Accordingly, regardless of the absolute voltage levels of the first signal and the second signal, the difference between the voltages of the two signals, that is, the first signal and the second signal, is kept constant.

In this manner, the difference between the image data transmitted by the low voltage image data transmitter 95 of the driving apparatus of the present invention and the image data transmitted by the conventional driving apparatus is shown in FIG.

11 is a view for explaining an example of image data transmitted by the low voltage image data transmitting unit in the driving apparatus of the plasma display panel according to the present invention.

Referring to FIG. 11, as shown in (a), image data transmitted by a conventional driving device is a form in which a 5V image signal is transmitted from a low voltage image data transmitter of a control board to a low voltage image data receiver of a data board. The longer the path from the above-described control board to the low voltage image data receiver increases the resistance, thereby further increasing the voltage drop, and eventually the image data transmitted by the control board and the image data reaching the low voltage image data receiver. Will be different. As a result, the size of the data pulse supplied to the address electrode of the plasma display panel is reduced, and the discharge becomes unstable.

On the other hand, referring to (b), the image data transmitted by the low voltage image data transmitter of the driving apparatus of the present invention is transmitted in the form of a pair of low voltage differential signals. For example, the first signal and the second signal are transmitted from the low voltage image data transmitter of the control board to the low voltage image data receiver of the flexible substrate in a state where the first signal and the second signal have a predetermined voltage level difference. Here, the absolute voltage level of the pair of differential signals may vary due to the influence of the resistance component or the like, but the difference in voltage level between the first signal and the second signal is constantly maintained. For example, even when noise is generated in a pair of differential signals, the aforementioned noise is generated in both the first signal and the second signal, but the difference in voltage level between the first signal and the second signal does not change significantly. As a result, when the image data output from the control board is supplied to the address electrode of the plasma display panel through the low voltage image data transmitter and the low voltage image data receiver of the flexible substrate, the voltage levels of the first signal and the second signal are constant. In this case, the image data is stably transmitted. In addition, the influence of electromagnetic noise by the transmitted data is minimized.

In other words, a process is performed between the low voltage image data transmitter and the low voltage image data receiver to convert the image into low voltage image data and low voltage image data and inverted data, and then restore the image using the difference between the two data. . Therefore, even if a voltage drop occurs due to the third transmission path 67 in FIG. 6, the voltage drop occurs at the same rate with respect to the two data, thereby restoring the image data without distortion.

Therefore, even when the plasma display panel is enlarged, the influence of signal distortion or electromagnetic noise on image data transmitted and received between the control board and the flexible substrate is minimized.

As such, 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 thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive.

The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the present invention omits the data board and allows the low voltage image data supplied from the control board to be directly supplied to the flexible substrate, thereby reducing the cost due to the data board, thereby manufacturing the plasma display panel. It is effective to reduce.

In addition, the low-voltage image data supplied from the above-described control board to the flexible substrate is set as low voltage differential signals (LVDS) to be supplied to the address electrodes of the plasma display panel, thereby reducing the influence of electromagnetic noise. It is possible to solve the problem of the voltage drop due to the increase in the size of the plasma display panel.

Claims (7)

A low voltage image data transmitter converting an image signal input from the outside into low voltage image data and transmitting the low voltage image data; A low voltage image data receiver configured to receive the low voltage image data and to restore the image signal; And And a data drive integrated circuit configured to supply the image signal restored by the low voltage image data receiver to an address electrode of the plasma display panel through a switching operation. The low voltage image data receiving unit and the data drive integrated circuit are integrally formed on one flexible substrate having a flexible structure. The low voltage image data includes a first signal and a second signal inverted from the first signal, and the low voltage image data transmitter converts the image signal into the first signal and the second signal to convert the low voltage. An apparatus for driving a plasma display panel, characterized by transmitting to an image data receiving unit. The method of claim 1, The data drive integrated circuit At least one drive device of the plasma display panel, characterized in that included on the one flexible substrate. delete The method of claim 1, The low voltage image data receiver And restore the video signal by using a difference between the voltage levels of the first signal and the second signal transmitted from the low voltage image data transmitter. The method according to claim 1 or 4, And the first signal and the second signal are Low Voltage Differential Signals (LVDS). The method according to claim 1 or 4, And the difference between the voltage levels of the first signal and the second signal is 0.3V or more and 0.4V or less. The method of claim 1, And the low voltage image data transmitter is mounted on a control board for controlling the driving of the plasma display panel.

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