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KR100828875B1 - Flexible Substrate of Surface Discharge AC Plasma Display Panel - Google Patents

Flexible Substrate of Surface Discharge AC Plasma Display Panel Download PDF

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KR100828875B1
KR100828875B1 KR1020020078271A KR20020078271A KR100828875B1 KR 100828875 B1 KR100828875 B1 KR 100828875B1 KR 1020020078271 A KR1020020078271 A KR 1020020078271A KR 20020078271 A KR20020078271 A KR 20020078271A KR 100828875 B1 KR100828875 B1 KR 100828875B1
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electrode
flexible substrate
display panel
plasma display
pdp
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KR20040050435A (en
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문석준
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오리온피디피주식회사
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/46—Connecting or feeding means, e.g. leading-in conductors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/62—Circuit arrangements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

본 발명의 면방전 교류 플라즈마 디스플레이 패널의 플렉시블 기판은 X전극 및 Y전극을 갖는 플라즈마 디스플레이 패널의 플렉시블 기판(FPC)에 있어서, 플렉시블 기판 중 플라즈마 디스플레이 패널의 전극패드와 접속되는 부분에 일정 길이로 설치되어 플라즈마 디스플레이 패널의 전극패드 상의 적어도 하나의 상기 X전극과 대응접속되는 보조전극을 구비하여 PDP의 전극패드 상에서 신호선과 연결되는 전극이 아닌 다른 전극(X전극)들을 이중 층으로 형성함으로써 PDP의 해당 전극이 오픈되는 경우에도 펄스가 정상적으로 PDP에 인가될 수 있도록 해준다.The flexible substrate of the surface discharge alternating current plasma display panel of the present invention is provided in a flexible substrate (FPC) of a plasma display panel having an X electrode and a Y electrode, and is provided to a portion of the flexible substrate connected to the electrode pad of the plasma display panel. And an auxiliary electrode connected to at least one of the X electrodes on the electrode pad of the plasma display panel to form a double layer of electrodes (X electrodes) other than the electrode connected to the signal line on the electrode pad of the PDP. Even when the electrode is open, the pulse can be normally applied to the PDP.

Description

면방전 교류 플라즈마 디스플레이 패널의 플랙시블 기판{Flexible Printed Circuit for AC-PDP}Flexible printed circuit for surface discharge AC plasma display panel

도 1은 종래 PDP의 전극패드에 플렉시블 기판이 부착되는 모습을 보여주는 도면.1 is a view showing a flexible substrate attached to the electrode pad of the conventional PDP.

도 2는 종래 PDP의 전극패드에 플렉시블 기판이 부착된 모습을 보다 상세하게 나타내는 도면.2 is a view showing in more detail the state in which a flexible substrate is attached to the electrode pad of the conventional PDP.

도 3은 보조전극이 부착된 본 발명에 따른 플렉시블 기판(FPC)의 구조를 보다 상세하게 나타내는 도면.3 is a view showing in more detail the structure of a flexible substrate (FPC) according to the present invention with an auxiliary electrode attached.

도 4는 본 발명에 따른 플렉시블 기판이 PDP의 전극패드에 부착된 모습을 나타내는 도면.4 is a view showing a state in which the flexible substrate according to the present invention is attached to the electrode pad of the PDP.

도 5는 도 4의 A'부분의 단면을 나타내는 단면도.FIG. 5 is a cross-sectional view showing a cross section taken along the line A ′ of FIG. 4. FIG.

본 발명은 플라즈마 디스플레이 패널(PDP:Plasma Display Panel, 이하 PDP라 함)의 플렉시블 기판(FPC:Flexible Printed Circuit)에 관한 것으로, 보다 상세하게는, 플렉시블 기판과 겹쳐지는 PDP 입력패드의 유지전극에 발생한 전극의 오픈(OPEN) 문제를 해결하기 위해 보조전극을 구비한 플렉시블 기판(FPC)에 관한 것이다.The present invention relates to a flexible printed circuit (FPC) of a plasma display panel (PDP), and more particularly, to a sustain electrode of a PDP input pad overlapping the flexible substrate. The present invention relates to a flexible substrate (FPC) having an auxiliary electrode for solving the OPEN problem.

도 1은 종래 PDP의 전극패드에 플렉시블 기판(FPC)을 부착하는 모습을 보여주는 도면이다.1 is a view illustrating a state in which a flexible substrate (FPC) is attached to an electrode pad of a conventional PDP.

도 1에서 PDP는 각 전극 군(群)이 형성된 두 기판(P1, P2)을 소정간격으로 접합하여 패널(P)을 형성하고, 그 사이에 방전기체를 충전한 방전소자로 구성된다.In FIG. 1, the PDP is formed of a discharge element in which two substrates P1 and P2 on which electrode groups are formed are joined at predetermined intervals to form a panel P, and a discharge gas is charged therebetween.

각 기판(P1, P2)에 형성된 전극 군은 그 단부를 기판(P1, P2)의 외단까지 연장하여 외부 구동회로에 연결하게 되는데, 이러한 접속을 위한 전극 군의 연결부위를 이하 전극패드(E)라 칭한다.The electrode group formed on each of the substrates P1 and P2 extends its ends to the outer ends of the substrates P1 and P2 so as to be connected to an external driving circuit. It is called.

전극패드(E)는 다수의 전극들의 단부를 포함하므로, 이를 구동회로에 연결하기 위한 커넥터로는 유연한 절연 시이트(sheet) 사이에 동박등 금속박을 패터닝하여 구성한 플렉시블 기판(FPC)이 사용되고 있다.Since the electrode pad E includes ends of a plurality of electrodes, a flexible substrate FPC configured by patterning a metal foil such as copper foil between flexible insulating sheets is used as a connector for connecting the electrode pad E to the driving circuit.

전극패드(E)의 전극과 플렉시블 기판(FPC)의 금속패턴은 일대일 대응접속되어야 하며, 최근 PDP의 고정세(高精細)화 경향에 따라 그 피치(pitch)가 더욱 조밀해지고 있다.The electrode of the electrode pad E and the metal pattern of the flexible substrate FPC should be connected one-to-one, and the pitch is becoming more dense in accordance with the recent trend toward higher definition of the PDP.

도 2는 종래 PDP의 전극패드(E)에 플렉시블 기판(FPC)이 부착된 모습을 보다 상세하게 나타내는 도면이다.2 is a view showing in more detail the state in which the flexible substrate (FPC) is attached to the electrode pad (E) of the conventional PDP.

플렉시블 기판(FPC)에는 금속박으로 이루어진 다수의 신호선이 서로 평행하게 구비되어 있으며 이러한 각 신호선이 PDP 전극패드의 주사전극(Y1, Y2, Y3 , …)과 일대일 대응접속되어 외부 구동회로로부터 주사펄스를 PDP로 인가하게 된다.In the flexible substrate FPC, a plurality of signal lines made of metal foil are provided in parallel with each other, and the signal lines are connected one-to-one with the scan electrodes Y 1 , Y 2 , Y 3 ,. The scanning pulse is applied to the PDP.

참조번호 "A"는 두번째 유지전극(X2)이 스크래치 등에 의해 오픈되어 유지전극(X2)에 유지펄스가 인가되지 못하는 모습을 나타내고 있다.Reference numeral "A" indicates a state in which the second sustain electrode X 2 is opened by a scratch or the like so that a sustain pulse cannot be applied to the sustain electrode X 2 .

상술한 바와 같이 최근 PDP의 고정세(高精細)화 경향에 따라 그 피치(pitch)가 더욱 조밀해지고 있어 보다 작은 스크래치 등에 의해 유지전극의 오픈이 더욱 흔히 발생할 수 있게 된다.As described above, according to the recent trend toward higher definition of the PDP, the pitch becomes more dense, so that the sustain electrode can be more frequently opened due to smaller scratches or the like.

더욱이 멀티 스크린을 위해 한 쪽 방향으로만 전극을 인출하는 멀티형 PDP의 경우 이러한 전극패드에서의 오픈(OPEN)에 대해 매우 취약하게 된다.Moreover, the multi-type PDP, which draws out electrodes in only one direction for the multi-screen, becomes very vulnerable to the OPEN in such electrode pads.

또한, 전극패드에 "A"와 같이 유지전극에 오픈이 발생하는 경우 이를 발견하기도 용이하지 않을 뿐만아니라 발견을 하더라도 이를 수리하기 위해 FPC를 제거해야 하는 번거로운 문제가 발생하게 된다.In addition, when an opening occurs in the sustain electrode, such as "A" in the electrode pad, it is not easy to find it, and even if found, a troublesome problem of removing the FPC to repair it occurs.

따라서, 상술한 문제점을 해결하기 위한 본 발명의 목적은 PDP 전극패턴에서 발생되는 전극들의 오픈문제를 보다 용이하게 해결하는데 있다.Accordingly, an object of the present invention for solving the above problems is to more easily solve the problem of opening of the electrodes generated in the PDP electrode pattern.

위와 같은 목적을 달성하기 위한 본 발명의 면방전 교류 플라즈마 디스플레이 패널의 플렉시블 기판은 X전극 및 Y전극을 갖는 플라즈마 디스플레이 패널의 플렉시블 기판(FPC)에 있어서, 플렉시블 기판 중 상기 플라즈마 디스플레이 패널의 전극패드와 접속되는 부분에 일정 길이로 설치되어 플라즈마 디스플레이 패널의 전 극패드 상의 적어도 하나의 X전극과 대응접속되는 보조전극을 구비한다.In the flexible substrate (FPC) of the plasma display panel having the X electrode and the Y electrode, the flexible substrate of the surface discharge AC plasma display panel of the present invention for achieving the above object, and among the flexible substrate of the electrode pad of the plasma display panel An auxiliary electrode is provided to a portion to be connected to a predetermined length and correspondingly connected to at least one X electrode on the electrode pad of the plasma display panel.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 3은 보조전극이 부착된 본 발명에 따른 플렉시블 기판(FPC)의 구조를 보다 상세하게 나타내는 도면이며, 도 4는 도 3의 플렉시블 기판(FPC)이 PDP의 전극패드에 부착된 모습을 나타내는 도면이다.3 is a view showing in detail the structure of a flexible substrate (FPC) according to the present invention with an auxiliary electrode attached, Figure 4 is a view showing a state in which the flexible substrate (FPC) of Figure 3 is attached to the electrode pad of the PDP to be.

본 발명에 따른 플렉시블 기판(FPC)은 일측이 미도시된 외부 구동회로(PCB:Printed Circuit Board)와 연결되고 타측이 PDP 전극패드의 주사전극(Y1, Y2, Y3, …)과 일대일 대응접속되어 외부 구동회로로부터의 신호를 PDP 전극패드의 주사전극(Y1, Y2, Y3, …)으로 전송하는 다수의 신호선(10)들을 구비한다.The flexible substrate (FPC) according to the present invention is connected to an external driving circuit (PCB) (not shown) on one side and one-to-one with the scan electrodes (Y 1 , Y 2 , Y 3 ,...) Of the PDP electrode pad. A plurality of signal lines 10 correspondingly connected to transmit signals from an external driving circuit to the scan electrodes Y 1 , Y 2 , Y 3 ,... Of the PDP electrode pad are provided.

특히, 본 발명에서는 신호선(10) 중 PDP 전극패드와 연결되는 부분의 신호선(10) 사이에 신호선(10)과 평행하며 전극패드의 유지전극(X1, X2, X3, X4, …)과 일대일 대응접속되도록 형성되는 다수의 보조전극(12)을 더 구비한다.In particular, in the present invention, the signal line 10 is parallel to the signal line 10 between the signal lines 10 of the signal line 10 connected to the PDP electrode pads, and the sustain electrodes X 1 , X 2 , X 3 , X 4 ,. ) Is further provided with a plurality of auxiliary electrodes 12 formed to correspond to the one-to-one correspondence.

이때, 보조전극(12)은 플렉시블 기판(FPC) 중 전극패드와 연결되는 부분에만 신호선(10)과 평행하게 형성된다. 도 3에서는 도 2와 달리 전극패드 상에서 신호선(10) 옆의 빗금친 부분(12)(보조전극)이 더 구비되어 있음을 알 수 있다.In this case, the auxiliary electrode 12 is formed in parallel with the signal line 10 only in a portion of the flexible substrate FPC connected to the electrode pad. In FIG. 3, the hatched portion 12 (auxiliary electrode) next to the signal line 10 is further provided on the electrode pad unlike FIG. 2.

즉, 신호선(10)과 같은 금속선을 신호선(10)과 평행하게 PDP의 전극패드와 연결되는 플렉시블 기판(FPC) 부분에 일정 거리만큼 부가하여 오픈이 발생하기 쉬 운 전극패드의 유지전극(X1, X2, X3, X4, …) 위에 겹쳐지도록 함으로써 전극패드의 유지전극(X1, X2, X3, X4, …)이 전기적으로 이중으로 연결되도록 형성한다.That is, a metal line such as the signal line 10 is added to the flexible substrate FPC part connected to the electrode pad of the PDP in parallel with the signal line 10 by a predetermined distance, so that the sustain electrode X 1 of the electrode pad which is easily opened. , X 2 , X 3 , X 4 ,..., So that the sustain electrodes X 1 , X 2 , X 3 , X 4 ,.

이와 같이 구성된 본 발명의 플렉시블 기판(FPC)의 동작을 간략하게 설명하면 다음과 같다.The operation of the flexible substrate FPC of the present invention configured as described above will be briefly described as follows.

플렉시블 기판(FPC)의 신호선(10)과 보조전극(12)을 각각 PDP 전극패드의 주사전극(Y1, Y2, Y3, …)과 유지전극(X1, X2, X3 , X4, …) 위에 위치시킨 후 플렉시블 기판(FPC)의 전극패드 연결부분 위를 열로 압착해서 PDP 전극패드의 주사전극(Y1, Y2, Y3, …) 및 유지전극(X1, X2, X3, X4, …)이 각각 플렉시블 기판(FPC)의 신호선(10) 및 보조전극(12)과 이방성 도전필름(ACF:Anisotropic Conductive Film)과 같은 전도성 접착제를 통해 전기적으로 연결되도록 한다.The signal line 10 and the auxiliary electrode 12 of the flexible substrate FPC are respectively connected to the scan electrodes Y 1 , Y 2 , Y 3 ,..., And the sustain electrodes X 1 , X 2 , X 3 , X of the PDP electrode pad. 4 ,..., And then press the electrode pad connecting portion of the flexible substrate FPC with heat to scan electrodes Y 1 , Y 2 , Y 3 ,... And sustain electrodes X 1 , X 2 of the PDP electrode pad. , X 3 , X 4 ,... Are electrically connected to the signal line 10 and the auxiliary electrode 12 of the flexible substrate FPC through a conductive adhesive such as an anisotropic conductive film (ACF).

미도시된 외부 구동회로는 플렉시블 기판(FPC)의 신호선(10)을 통해 PDP에 펄스 신호를 인가하게 된다.The external driving circuit (not shown) applies a pulse signal to the PDP through the signal line 10 of the flexible substrate FPC.

그런데 플렉시블 기판(FPC)의 접합과정 중 또는 PDP를 사용하던 중 유지전극(X1, X2, X3, X4, …) 중 어느 하나(X2)가 오픈(A)될 수 있다. 또는 PDP의 전극패턴을 형성하던 중 발생된 오픈을 미쳐 발견하지 못한 상태에서 전극패드와 플렉시블 기판(FPC)을 접합시킬 수도 있게 된다.However, any one of the sustain electrodes X 1 , X 2 , X 3 , X 4 ,..., X 2 may be opened (A) during the bonding process of the flexible substrate FPC or when the PDP is used. Alternatively, the electrode pad and the flexible substrate FPC may be bonded to each other in a state in which an open generated while forming an electrode pattern of the PDP is not found.

이러한 경우 PDP의 해당 유지전극(X2)으로 유지펄스가 인가되지 않아 PDP 화질에 문제가 발생하게 되어 종래에는 이를 수리하기 위해 플레시블 기판을 전극패 드에서 다시 떼어내야만 했었다.In this case, since the sustain pulse is not applied to the corresponding sustain electrode (X 2 ) of the PDP, a problem occurs in the PDP image quality. Therefore, in order to repair the problem, the flexible substrate had to be removed from the electrode pad again.

그러나, 본 발명에 따른 플렉시블 기판(FPC)은 전극패드 상의 유지전극(X1, X2, X3, X4, …)과 대응되는 부위에 일정 길이의 보조전극(10)을 형성하여 유지전극(X1, X2, X3, X4, …)과 접촉시켜줌으로써 전극패드 상의 유지전극(X1, X2, X3, X4, …)이 이중의 전극층을 갖도록 해주어 유지전극(X2)이 오픈(A)되어도 보조전극(12)이 오픈된 유지전극(X2)을 이어주게 되어 유지펄스는 보조전극(12)을 통해 정상적으로 PDP로 인가되게 된다.However, in the flexible substrate FPC according to the present invention, the auxiliary electrode 10 having a predetermined length is formed on a portion corresponding to the sustain electrodes X 1 , X 2 , X 3 , X 4 ,... On the electrode pad. By contacting (X 1 , X 2 , X 3 , X 4 ,...), The sustain electrodes (X 1 , X 2 , X 3 , X 4 ,...) On the electrode pad have a double electrode layer and the sustain electrode (X). Even if 2 ) is opened (A), the auxiliary electrode 12 is connected to the open sustain electrode (X 2 ), and the sustain pulse is normally applied to the PDP through the auxiliary electrode 12.

도 5는 도 4의 A'부분에 대한 단면도로 본 발명에 따른 보조전극이 오픈(A)된 유지전극(X2)을 전기적으로 이어주는 모습을 보여주고 있다.FIG. 5 is a cross-sectional view taken along line A ′ of FIG. 4, and shows a state in which the auxiliary electrode according to the present invention electrically connects the open (A) sustain electrode X 2 .

상술된 실시예에서 플렉시블 기판(FPC)의 신호선(10)이 PDP의 주사전극(Y1, Y2, Y3, …)과 대응접속되고 보조전극(12)이 유지전극(X1, X2, X3, X4, …)과 대응접속되도록 하고 있으나 이에 한정되지 않음은 자명하다.In the above-described embodiment, the signal line 10 of the flexible substrate FPC is correspondingly connected to the scan electrodes Y 1 , Y 2 , Y 3 ,... Of the PDP, and the auxiliary electrode 12 is connected to the sustain electrodes X 1 , X 2. , X 3 , X 4 ,..., And the like, are not limited thereto.

상술한 바와 같이, 본 발명의 플렉시블 기판은 외부 구동회로로부터의 신호를 PDP로 전송해주는 신호선 이외에 신호선 사이에 일정 길이의 보조전극을 더 구비하여 PDP의 전극패드 상에서 신호선과 연결되는 전극이 아닌 다른 전극들을 이중 층으로 형성함으로써 PDP의 해당 전극이 오픈되는 경우에도 펄스가 정상적으로 PDP에 인가될 수 있도록 해준다.As described above, the flexible substrate of the present invention further includes an auxiliary electrode having a predetermined length between the signal lines in addition to the signal line for transmitting the signal from the external driving circuit to the PDP, and an electrode other than the electrode connected to the signal line on the electrode pad of the PDP. By forming them in a double layer, a pulse can be normally applied to the PDP even when the corresponding electrode of the PDP is opened.

Claims (4)

X전극 및 Y전극을 갖는 플라즈마 디스플레이 패널의 플렉시블 기판(FPC)에 있어서,In a flexible substrate (FPC) of a plasma display panel having an X electrode and a Y electrode, 상기 플렉시블 기판 중 상기 플라즈마 디스플레이 패널의 전극패드와 접속되는 부분에 일정 길이로 설치되어 상기 플라즈마 디스플레이 패널의 전극패드 상의 적어도 하나의 상기 X전극과 대응접속되는 보조전극을 구비하는 면방전 교류 플라즈마 디스플레이 패널의 플렉시블 기판.A surface discharge AC plasma display panel having a predetermined length in a portion of the flexible substrate connected to the electrode pad of the plasma display panel and having an auxiliary electrode corresponding to at least one of the X electrodes on the electrode pad of the plasma display panel. Flexible substrate. 플라즈마 디스플레이 패널의 전극패드 상의 제 1전극들과 대응접속하여 외부 구동회로로부터의 신호를 플라즈마 디스플레이 패널로 전송하는 다수의 신호배선들; 및A plurality of signal wires correspondingly connected to the first electrodes on the electrode pad of the plasma display panel to transmit a signal from an external driving circuit to the plasma display panel; And 플렉시블 기판(FPC) 중 상기 전극패드와 접속되는 부분의 상기 신호배선들 사이의 적어도 한 곳에 일정 길이로 설치되어 상기 전극패드 상의 제 2전극들에 대응접속되는 보조 전극배선들을 구비하는 면방전 교류 플라즈마 디스플레이 패널의 플렉시블 기판.Surface-discharge alternating plasma having auxiliary electrode wirings which are provided at a predetermined length between the signal wirings of a portion of the flexible substrate FPC connected to the electrode pad and are connected to the second electrodes on the electrode pad. Flexible substrate of display panel. 제 2 항에 있어서,The method of claim 2, 상기 제 1전극은 주사전극이며 상기 제 2전극은 유지전극인 것을 특징으로 하는 면방전 교류 플라즈마 디스플레이 패널의 플렉시블 기판.And the first electrode is a scan electrode and the second electrode is a sustain electrode. 제 2 항에 있어서,The method of claim 2, 상기 보조전극은 상기 신호배선과 평행하게 형성되어 상기 다수의 제 2전극과 일대일 대응접속되는 것을 특징으로 하는 면방전 교류 플라즈마 디스플레이 패널의 플렉시블 기판.And the auxiliary electrode is formed in parallel with the signal line to be connected to the plurality of second electrodes in one-to-one correspondence.
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