KR910008150B1 - Ac-type plasma display panel - Google Patents

Ac-type plasma display panel Download PDF

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Publication number
KR910008150B1
KR910008150B1 KR1019890018591A KR890018591A KR910008150B1 KR 910008150 B1 KR910008150 B1 KR 910008150B1 KR 1019890018591 A KR1019890018591 A KR 1019890018591A KR 890018591 A KR890018591 A KR 890018591A KR 910008150 B1 KR910008150 B1 KR 910008150B1
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electrode
electrode group
plasma display
discharge
electron emission
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KR1019890018591A
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Korean (ko)
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KR910013392A (en
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권용호
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삼성전관 주식회사
김정배
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00Gas-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
    • H01J11/20Constructional details
    • H01J11/34Vessels, containers or parts thereof, e.g. substrates
    • H01J11/38Dielectric or insulating layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00Gas-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
    • H01J11/20Constructional details
    • H01J11/34Vessels, containers or parts thereof, e.g. substrates
    • H01J11/36Spacers, barriers, ribs, partitions or the like
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00Gas-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
    • H01J11/20Constructional details
    • H01J11/34Vessels, containers or parts thereof, e.g. substrates
    • H01J11/40Layers for protecting or enhancing the electron emission, e.g. MgO layers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

The AC type plasma display panel includes first electrode group (12) and second electrode group (13) orthogonal-formed on the opposite surfaces of front and rear plates, a dielectric layer (14) formed on the electrodes and a secondary electron emission film (15) formed there on. The dielectric layer (14) and secondary electron omission film (15) are formed on only surface of the electrodes and having the same width as the first and second electrodes. A barrier (16) is formed between the electrode groups (12) and (13). The plasma display panel prevents the leakage and discharge between the discharge cells.

Description

교류형 플라즈마 디스플레이 장치AC plasma display device

제1도 종래 플라즈마 디스플레이 장치의 부분 사시도.1 is a partial perspective view of a conventional plasma display device.

제2도 종래 플라즈마 디스플레이 장치의 단면도.2 is a cross-sectional view of a conventional plasma display device.

제3도 본 발명에 따른 교류형 플라즈마 디스플레이 장치의 부분 사시도.3 is a partial perspective view of an AC plasma display device according to the present invention.

제4도는 본 발명에 따른 교류형 플라즈마 디스플레이 장치의 단면도.4 is a cross-sectional view of an AC plasma display device according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 전면판 11: 배면판10: front panel 11: back panel

12: 1전극군 13: 제2전극군12: one electrode group 13: second electrode group

12a, 12b : 제1전극 13a, 13b, 13c, 13d : 제2전극12a, 12b: first electrode 13a, 13b, 13c, 13d: second electrode

14 : 유전체층 15 ; 2차 전자방출막14: dielectric layer 15; Secondary electron emission layer

16: 격벽 17 : 교차부16: bulkhead 17: intersection

18 : 공간부18: space part

본 발명은 플라즈마 디스플레이 장치(Plasma Display Panel : 이하 PDP라 칭함)에 관한 것으로, 특히 방전 셀(cell)간의 누설방전을 방지할 수 있는 교류형 PDP에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel (hereinafter referred to as a PDP), and more particularly to an alternating current PDP that can prevent leakage discharge between discharge cells.

일반적으로 종전극과 횡전극이 코팅된 두 기판 사이에 방전가스를 주입하여 봉입한 후 방전전압을 가하면 상기 두전극 사이에서 기체가 발광하게 되는데 이 가스방전에 수반되는 발광을 이용한 디스플레이 장치가 PDP이다. 그리고, 이 PDP는 방전 셀에 인가하는 구동전압의 형식에 따라, 즉, 방전형식에 따라 교류형과 직류형으로 분류되는데 교류형 PDP에 대해서는 제1도에 부분 사시도가, 제2도에 단면도가 도시되어 있으며, 도면을 참조하면서 이를 간단히 설명하면 다음과 같다.In general, when a discharge gas is injected and encapsulated between two substrates coated with a vertical electrode and a horizontal electrode, when a discharge voltage is applied, gas is emitted between the two electrodes. A display device using light emission accompanying gas discharge is a PDP. . The PDP is classified into an AC type and a DC type according to the type of driving voltage applied to the discharge cell, that is, the discharge type. The AC type PDP has a partial perspective view in FIG. 1 and a cross-sectional view in FIG. It is illustrated and briefly described with reference to the drawings as follows.

제1도에 나타낸 바와 같이, 전면판(10)과 배면판(11)상에 일정간격으로, 평행하게 각각 제1전극군(12)과 제2전극군(13)을 형성하고, 이 제1, 제2전극군(12)(13)이 형성된 전면판(10)과 배면판(11)상에 유전체층(14) 및 2차전자 방출막(15)인 MgO막 또는 PbO막을 차례로 형성한다. 이와 같이 형성된 전면판(10)과 배면판(11)을 각각의 전극군 즉, 제1전극군(12)과 제2전극군(13)이 직교하도록 조합한 후, 상술한 엘리먼트들(elements)이 형성된 전면판(10)과 배면판(11)사이의 공간부(18)에 방전가스를 주입하고 주변을 봉지하여 기밀용기로 만든다.As shown in FIG. 1, the first electrode group 12 and the second electrode group 13 are formed on the front plate 10 and the back plate 11 in parallel at a predetermined interval, respectively, and the first electrode group 12 and the second electrode group 13 are formed. On the front plate 10 and the back plate 11 on which the second electrode groups 12 and 13 are formed, a dielectric layer 14 and an MgO film or PbO film, which is a secondary electron emission film 15, are sequentially formed. The front plate 10 and the back plate 11 formed as described above are combined so that each electrode group, that is, the first electrode group 12 and the second electrode group 13 are orthogonal, and then the above-described elements The discharge gas is injected into the space 18 between the formed front plate 10 and the back plate 11 and sealed to make an airtight container.

이와 같이 형성된 교류형 PDP는, 제2도에서 보는 바와 같이, 전극에 전압을 인가하면 제1전극(12a) 및 제2전극(13a)이 교차되는 교차부(17)에서 방전이 일어나고, 이 방전으로부터 발생된 전자와 이온이 상기 두 전극간에 형성된 전계에 영향을 받아, 각각 대향하는 전극측으로 끌려 2차전자 방출막(15) 표면에 축적된다. 상기 2차전자 방출막(15) 표면에 축척된 전하는 상기 제1전극(12a)과 제2전극(13a)간의 내부전계를 약하게 하기 때문에 방전은 단시간에 정지한다. 다음 단계에서 인가전압을 역전함으로써 방전을 재개하고 상술한 동작을 반복한다.In the AC PDP formed as described above, as shown in FIG. 2, when voltage is applied to the electrode, discharge occurs at an intersection portion 17 where the first electrode 12a and the second electrode 13a intersect. The electrons and ions generated from are influenced by the electric field formed between the two electrodes, and are attracted to the opposite electrode side and accumulated on the surface of the secondary electron emission film 15. The charge accumulated on the surface of the secondary electron emission film 15 weakens the internal electric field between the first electrode 12a and the second electrode 13a, so that the discharge stops in a short time. In the next step, the discharge is resumed by reversing the applied voltage and the above-described operation is repeated.

이와 같이 동작하는 교류형 PDP는 각각의 전극군을 유전체층과 2차전자 방출막이 덮고 있기 때문에 상기 임의의 전극들에 전압을 인가하면 이 전극들의 교차부에서만 방전이 일어나는 것이 아니라 인접하는 방전 셀과도 결합하여 누설방전이 발생되므로 해상도가 떨어지는 단점이 있었다.In the AC PDP operating as described above, since each electrode group is covered by a dielectric layer and a secondary electron emission film, when a voltage is applied to any of the electrodes, discharge occurs not only at the intersections of these electrodes but also with adjacent discharge cells. There was a disadvantage that the resolution is lowered because the leakage discharge occurs by combining.

또한 방전공간을 유지하기 위하여는 별도의 스페이서(spacer)가 필요하므로 문자나 화상을 표시할 때 스페이서가 장애가 되지 않도록 위치를 선정하여 제조하여야 하는 어려움이 있었다.In addition, since a separate spacer is required to maintain the discharge space, there is a difficulty in selecting and manufacturing a position so that the spacer does not become an obstacle when displaying characters or images.

따라서 본 발명의 목적은 상기한 종래의 문제점을 해결할 수 있는 구조를 가진 교류형 PDP를 제공하는데 있다.Accordingly, an object of the present invention is to provide an AC PDP having a structure that can solve the above-described conventional problems.

상기한 목적을 달성하기 위하여 본 발명에 따른 교류형 PDP를 구성함에 있어서, 배면판상에 일정간격으로 평행하게 제2전극군을 형성하고, 이 제2전극군상에 동일한 폭으로 유전체층 및 2차전자 방출막을 차례로 형성하며, 이 제2전극군, 유전체층 및 2차전자 방출막이 형성된 배면판상에 절연체로 격벽을 형성하되 이 격벽은 상기 제2전극군, 유전체층 및 2차전자 방출막이 차례로 형성된 높이보다 높게 하여 이들의 일측과 접촉되게 형성한다. 또한 전면판상에 일정간격으로 평행하게 제1전극군을 형성하고, 이 제1전극군상에 동일한 폭으로 유전체층 및 2차전자 방출막을 차례로 형성한다. 그리고 전면판과 배면판을 각각의 전극 군 즉, 제1전극군과 제2전극군이 직교하도록 조합한 후, 상술한 엘리먼트들이 형성된 전면판과 배면판 사이의 공간부에 방전가스를 주입하고 주변을 봉지하여 기밀용기로 만드는 것을 특징으로 한다.In order to achieve the above object, in the construction of the AC-type PDP according to the present invention, a second electrode group is formed on the rear plate in parallel at a predetermined interval, and the dielectric layer and the secondary electron emission have the same width on the second electrode group. A film is formed in turn, and a partition wall is formed with an insulator on the back plate on which the second electrode group, the dielectric layer, and the secondary electron emission film are formed, and the partition wall is higher than the height in which the second electrode group, the dielectric layer, and the secondary electron emission film are sequentially formed. It forms in contact with one side of these. Further, a first electrode group is formed in parallel on the front plate at a predetermined interval, and a dielectric layer and a secondary electron emission film are sequentially formed on the first electrode group with the same width. Then, the front plate and the back plate are combined so that each electrode group, that is, the first electrode group and the second electrode group are orthogonal, and then discharge gas is injected into the space between the front plate and the back plate on which the above-described elements are formed and It is characterized by making a sealed container.

이하, 첨부한 도면을 참조하여 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

제3도는 본 발명에 따른 교류형 플라즈마 디스플레이 장치의 부분 사시도이고, 제4도는 본 발명에 따른 교류형 플라즈마 디스플레이 장치의 단면도이다.3 is a partial perspective view of the AC plasma display device according to the present invention, and FIG. 4 is a cross-sectional view of the AC plasma display device according to the present invention.

제3도 및 제4도에 있어서, 본 발명에 따른 교류형 PDP는 인접하는 방전 셀간의 누설방전을 막기 위하여 제1 및 제2전극군(12)(13)상에만 유전체층(14) 및 2차전자 방출막(15)을 형성하고, 아울러 배면판(11)상에 제2전극군(13), 유전체층(14) 및 2차전자 방출막(15)이 차례로 형성된 높이보다 높게 하여 이들의 일측과 접촉되게 격벽(16)을 형성함으로써 상기 방전 셀의 각각이 격벽(16)에 의해 분리되도록 했다. 그러므로 제1전극(12a)과 제2전극(13a)에 전압을 인가하면 상기 제1 및 제1전극(12a)(13a)이 교차되는 교차부(17)에서만 방전이 일어나고, 이 방전으로부터 발생된 전자와 이온이 상기 두 전극간에 형성된 전계에 영향을 받아, 각각 대향하는 전극측으로 끌려 2차전자 방출막(15) 표면에 축적된다. 상기 2차전자 방출막(15) 표면에 축적된 전하는 상기 제1전극(12a)과 제2전극(13a)간의 내부전계를 약하게 하기 때문에 방전은 단시간에 정지한다. 다음 단계에서 인가전압을 역전함으로써 방전을 재개하고 상술한 동작을 반복한다.3 and 4, the alternating current type PDP according to the present invention has a dielectric layer 14 and a secondary only on the first and second electrode groups 12 and 13 to prevent leakage discharge between adjacent discharge cells. The electron emission film 15 is formed, and the second electrode group 13, the dielectric layer 14, and the secondary electron emission film 15 are sequentially formed on the rear plate 11 so as to be higher than one side thereof. The partitions 16 were formed in contact so that each of the discharge cells was separated by the partitions 16. Therefore, when a voltage is applied to the first electrode 12a and the second electrode 13a, discharge occurs only at the intersection portion 17 where the first and first electrodes 12a and 13a intersect. Electrons and ions are influenced by the electric field formed between the two electrodes, and are attracted to the opposite electrode side and accumulated on the surface of the secondary electron emission film 15. The charge accumulated on the surface of the secondary electron emission film 15 weakens the internal electric field between the first electrode 12a and the second electrode 13a, so that the discharge stops in a short time. In the next step, the discharge is resumed by reversing the applied voltage and the above-described operation is repeated.

이와 같이 본 발명에서는 제1 및 제2전극군사에만 2차전자 방출막을 형성하고, 또한 전극 사이에 절연체로 격벽을 형성하여 제1전극과 제2전극으로 구성되는 각각의 방전 셀을 분리함으로써 인접하는 방전 셀간의 누설방전을 방지할 수 있고, 방전공간을 유지할 수 있으며, 아울러 유전체층과 2차전자 방출막이 제1전극군 및 제2전극군상에만 형성되기 때문에 재질의 절약에 따른 제조원가의 절감을 기대할 수 있다.As described above, in the present invention, a secondary electron emission film is formed only in the first and second electrode groups, and a partition wall is formed between the electrodes to separate adjacent discharge cells composed of the first and second electrodes. It is possible to prevent leakage discharge between discharge cells, to maintain a discharge space, and to reduce the manufacturing cost due to material savings because the dielectric layer and the secondary electron emission film are formed only on the first electrode group and the second electrode group. have.

Claims (1)

전면판 및 배면판의 대향표면에 직교하는 제1전극군과 제2전극군을 각각 형성하고, 그 위에 순차적으로 유전체층 및 2차전자 방출막을 형성한 교류형 플라즈마 디스플레이 장치에 있어서, 상기 유전체층 및 2차전자 방출막은 상기 제1 및 제2전극군과 동일한 폭으로 이들 전극군의 표면상에만 형성되고, 상기 제2전극군들 사이에 격벽을 형성하여 된 것을 특징으로 하는 교류형 플라즈마 디스플레이 장치.An AC plasma display device comprising a first electrode group and a second electrode group orthogonal to the opposite surfaces of the front plate and the back plate, and sequentially forming a dielectric layer and a secondary electron emission film thereon, wherein the dielectric layer and the second electrode group are formed. The electron emission film is formed only on the surface of these electrode groups with the same width as the first and second electrode groups, and a partition wall is formed between the second electrode groups.
KR1019890018591A 1989-12-14 1989-12-14 Ac-type plasma display panel KR910008150B1 (en)

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