KR940011719B1 - Plasma display device - Google Patents

Plasma display device Download PDF

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KR940011719B1
KR940011719B1 KR1019900004440A KR900004440A KR940011719B1 KR 940011719 B1 KR940011719 B1 KR 940011719B1 KR 1019900004440 A KR1019900004440 A KR 1019900004440A KR 900004440 A KR900004440 A KR 900004440A KR 940011719 B1 KR940011719 B1 KR 940011719B1
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South Korea
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display
glass substrate
group
discharge
auxiliary
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KR1019900004440A
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Korean (ko)
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KR910017497A (en
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박원택
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삼성전관주식회사
김정배
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/492—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with crossed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/10—Anodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2217/00—Gas-filled discharge tubes
    • H01J2217/38—Cold-cathode tubes
    • H01J2217/49—Display panels, e.g. not making use of alternating current
    • H01J2217/492—Details
    • H01J2217/49207—Electrodes
    • H01J2217/49221—Mutual disposition
    • H01J2217/49228—Crossed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2217/00—Gas-filled discharge tubes
    • H01J2217/38—Cold-cathode tubes
    • H01J2217/49—Display panels, e.g. not making use of alternating current
    • H01J2217/492—Details
    • H01J2217/49207—Electrodes
    • H01J2217/49221—Mutual disposition
    • H01J2217/49242—Auxiliary electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2217/00—Gas-filled discharge tubes
    • H01J2217/38—Cold-cathode tubes
    • H01J2217/49—Display panels, e.g. not making use of alternating current
    • H01J2217/492—Details
    • H01J2217/49207—Electrodes
    • H01J2217/49257—Means for isolating electrodes from the discharge, e.g. dielectric layers

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  • Gas-Filled Discharge Tubes (AREA)

Abstract

The panel includes a back plate (10), a front plate (20) opposing the back plate to form a sealed gas discharge space, display cathodes (13) formed in strips on the back plate, latticed barriers (15) formed on the cathodes (13), a fluorescent layer (16) formed in strips on a front glass plate (20), display anodes (11) insulated from and crossed to the cathodes (13) on the back glass plate (10), a dielectric layer (12) formed between the anodes (11) and cathodes (13), and auxiliary anodes (11) formed along the layer (16) between the front plate (20) and fluorescent layer (16), thereby easily generating the display and auxiliary discharges in a cell to prolong the life of fluorescent layer.

Description

플라즈마 디스플레이 장치Plasma display device

제1도는 종래 직류형 펄스메모리 방식 PDP의 일부절단 사시도.1 is a partially cutaway perspective view of a conventional direct current pulse memory type PDP.

제2도는 종래 투과형 PDP의 일부절단 사시도.2 is a partially cutaway perspective view of a conventional transmissive PDP.

제3도는 본 발명에 의한 면방전형 PDP의 일부절단 사시도.3 is a partially cutaway perspective view of the surface discharge type PDP according to the present invention.

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

10 : 배면유리기판 20 : 전면유리기판10: back glass substrate 20: front glass substrate

11 : 표시양극군 11a,11b,11c : 표시양극11: display anode group 11a, 11b, 11c: display anode

12 : 유전체층 13 : 표시음극군12 dielectric layer 13 display cathode group

13a,13b,13c : 표시음극 14 : 보조양극군13a, 13b, 13c: display cathode 14: auxiliary anode group

14' : 보조양극 14a,14b,14c : 보조양극14 ': auxiliary anode 14a, 14b, 14c: auxiliary anode

15 : 격벽 16 : 형광체층15 bulkhead 16: phosphor layer

16a : ITO가 코팅된 형광체층 17 : 보조방전영역16a: phosphor layer coated with ITO 17: auxiliary discharge region

18 : 표시방전영역18: display discharge area

본 발명은 플라즈마 디스플레이 장치(Plasma Display Panel: 이하 PDP라 칭함)에 관한 것으로, 특히 표시방전을 용이하게 일으킬 수 있는 플라즈마 디스플레이 장치에 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 a plasma display device capable of easily causing display discharge.

일반적으로 PDP는 대형 제작이 가능하고, 수명이 CRT에 비해 두배 이상으로 길며, 구조가 간단하여 제작이 쉽다는 장점때문에 최근 그 연구가 활발히 진행되고 있다.In general, the PDP is possible to manufacture a large size, the life is more than twice as long as the CRT, the structure is simple and easy to manufacture due to the advantages of the recent research has been actively conducted.

제1도는 종래 직류형 펄스메모리 방식 PDP의 일부절단사시도이다. 이 PDP는, 직류형, PDP의 단점인 저휘도를 해결하기 위하여 일본공개특허 소57-86886에 제시된 펄스 메모리 방식에 따라 제안된 구조로, 배면유리기판(10)과 전면유리기판(20)으로 구성되고, 상기 배면유리기판(10)상에는 표시음극군(13)과 격벽(15)이 스크린 인쇄등의 방법으로 순차 형성되어 있다. 한편, 전면유리기판(20) 상에는 보조양극군(14)과 표시양극군(11), 그리고 형성광체층(16)이 마찬가지로 인쇄기술등에 의해 형성된다. 그리고 제1도에 나타낸 바와 같이, 보조방전영역(17)과 표시방전영역(18)간의 격벽은 다른 부분보다 낮게 되어 있고, 보조방전으로 부터의 하전입자등이 확산하는 통로가 형성되어 있다.1 is a partially cutaway perspective view of a conventional DC pulse memory type PDP. This PDP has a structure proposed in accordance with the pulse memory method disclosed in Japanese Laid-Open Patent Publication No. 57-86886 in order to solve the low luminance, which is a disadvantage of the direct current type and PDP, and includes a back glass substrate 10 and a front glass substrate 20. The display cathode group 13 and the partition wall 15 are sequentially formed on the rear glass substrate 10 by screen printing or the like. On the other hand, on the front glass substrate 20, the auxiliary positive electrode group 14, the display positive electrode group 11, and the formed phosphor layer 16 are similarly formed by a printing technique or the like. As shown in FIG. 1, the partition wall between the auxiliary discharge region 17 and the display discharge region 18 is lower than the other portions, and a passage through which charged particles and the like from the secondary discharge diffuses is formed.

제2도는 종래 투과형 PDP의 일부절단 사시도이다. 이 PDP는, 일본 소니(SONY)사에서 개발한 구조로, 배면유리기판(10)과 전면유리기판(20)으로 구성되고, 상기 배면유리기판(10)상에는 보조양극(14'), 유전체층(12), 표시음극군(13), 격벽(15)이 스크린 인쇄등의 방법으로 순차 형성되어 있다. 한편, 전면유리기판(20)상에는 표시양극군(11)가 ITO(Indium Tin Oxide)가 코팅된 형광체층(16a)이 형성된다. 이때 표시양극군은 ITO로, 표시음극군은 니켈(Ni)로 만들어진다.2 is a partially cutaway perspective view of a conventional transmissive PDP. The PDP is a structure developed by Sony, Japan, and is composed of a back glass substrate 10 and a front glass substrate 20, and on the back glass substrate 10, an auxiliary anode 14 'and a dielectric layer ( 12), the display cathode group 13 and the partition 15 are sequentially formed by screen printing or the like. On the other hand, the phosphor layer 16a coated with ITO (Indium Tin Oxide) is formed on the front glass substrate 20. In this case, the display anode group is made of ITO, and the display cathode group is made of nickel (Ni).

상술한 바와 같이 형성된 제1도 및 제2도의 PDP는 표시양극 및 표시음극간의 표시특성을 좋게하기 위해 보조양극과 표시음극간의 보조방전을 이용하여 하전입자를 형성, 공급함으로써, 표시방전이 신속하고 확실하게 일어나도록 되어 있다.The PDPs of FIGS. 1 and 2 formed as described above form and supply charged particles using auxiliary discharges between the auxiliary anodes and the display cathodes in order to improve the display characteristics between the display anodes and the display cathodes. It is supposed to happen.

그러나, 제1도의 PDP는 보조방전으로부터 생성된 하전입자등이 확산되는 통로에 의해 유효발광면적이 작아지고, 이 때문에 휘도가 떨어지게 된다. 또한, 보조방전을 위한 영역이 별도로 필요하기 때문에 표시음극방향의 격벽간 피치(pitch)가 커진다. 또한, 형광체층이 표시양측에 인접하여 형성되어 있기 때문에 방전에 의해 형광체의 수명이 짧아지는 문제점이 있다.However, in the PDP of FIG. 1, the effective light emitting area becomes small due to the passage of the charged particles generated from the auxiliary discharge and the like, which causes the luminance to decrease. In addition, since a region for auxiliary discharge is required separately, the pitch between the partition walls in the display cathode direction is increased. In addition, since the phosphor layer is formed adjacent to both sides of the display, there is a problem that the lifetime of the phosphor is shortened by discharge.

제2도의 PDP에서는, 표시양극으로 사용되는 ITO전극이 저항이 커서 보조방전을 이용하는 표시방전의 양극으로 사용하기가 어렵다. 또한, ITO 코팅된 형광체층이 표시방전 영역에 있어서 전류가 많이 흐르게 되고 이로써 형광체의 수명이 짧아지는 문제점이 있다.In the PDP of FIG. 2, the ITO electrode used as the display anode has a large resistance, making it difficult to use as an anode of a display discharge using an auxiliary discharge. In addition, the ITO-coated phosphor layer has a problem in that a large current flows in the display discharge region, thereby shortening the lifetime of the phosphor.

따라서 본 발명의 목적은 상기와 같이 종래기술의 문제점을 해결하기 위하여 배면유리기판상에 표시양극과 표시음극을 형성하고, 단일 셀내에서 보조방전과 표시방전을 일으킴으로써 형광체층의 수명을 늘리고 해상도를 높일 수 있는 플라즈마 디스플레이 장치를 제공하는데 있다.Accordingly, an object of the present invention is to form a display anode and a display cathode on the back glass substrate to solve the problems of the prior art as described above, and to increase the lifetime of the phosphor layer and increase the resolution by causing the secondary discharge and the display discharge in a single cell. It is to provide a plasma display device that can be.

상기한 목적을 달성하기 위하여 본 발명은 배면유리 기판과, 전면유리기판과, 상기 배면유리기판쪽에 스트립상으로 형성된 표시음극군과, 이 표시음극군위에 형성된 격자상 격벽과, 상기 전면유리기판쪽에 상기 표시음극군과 교차되며 대향되게 스트립상으로 형성된 형광체층을 구비하는 플라즈마 디스플레이 장치에 있어서, 상기 배면 유리기판상에 상기 표시음극군과는 유전체층으로 절연되고 직교되게 형성된 표시양극군과, 상기 전면유리기판과 상기 형광체층 사이에 상기 형광체층을 따라 형성된 보조 양극군을 구비함을 특징으로 한다.In order to achieve the above object, the present invention provides a rear glass substrate, a front glass substrate, a display cathode group formed in a strip shape on the rear glass substrate side, a grid partition wall formed on the display cathode group, and a front glass substrate side. A plasma display device comprising a phosphor layer intersecting the display cathode group and formed in a strip facing the display cathode group, wherein the display cathode group is insulated from the display cathode group by a dielectric layer and orthogonally formed on the rear glass substrate; And an auxiliary anode group formed along the phosphor layer between the substrate and the phosphor layer.

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

제3도는 본 발명에 의한 면방전형 PDP의 일부절단사시도이다.3 is a partially cutaway perspective view of the surface discharge type PDP according to the present invention.

제3도에 있어서, 본 발명에 의한 면방전형 PDP는 배면유리기판(10) 위에 표시양극군(11)을 예컨대, Ni을 사용하여 스트립상으로 제작하고, 이 위에 일정간격의 유전체층(12)을 개재시켜 상기 표시양극군(11)과 직교되게 표시음극군(13)을 예컨대 Ni을 사용하여 스트립상으로 제작하며, 상술한 엘리먼트를 뒤에 격자상 격벽(15)을 형성한다. 한편, 전면유리기판(20)상에 보조양극군(14)을 예컨대 ITO을 사용하여 상기 표시음극군(13)과 교차되며 대향되게 스트립상으로 형성하고, 이 보조양극군(14)에 접촉하여 형광체층(16)을 형성한다. 이와 같이 형성된 배면유리기판(10)과 전면유리기판(20)을 봉착한 후 패널 내부를 일정치의 진공도로 유지하여 방전가스를 주입시킨 후 둘레를 밀봉시킨다.In FIG. 3, the surface discharge type PDP according to the present invention fabricates the display anode group 11 on the back glass substrate 10, for example, using a strip of Ni, and forms the dielectric layers 12 at regular intervals thereon. The display cathode group 13 is produced in strip form using Ni, for example, orthogonal to the display anode group 11, and the lattice-shaped partition wall 15 is formed behind the above-mentioned element. On the other hand, the auxiliary positive electrode group 14 is formed on the front glass substrate 20 in a strip shape so as to intersect with the display negative electrode group 13 by using ITO, and is in contact with the auxiliary positive electrode group 14. The phosphor layer 16 is formed. After sealing the rear glass substrate 10 and the front glass substrate 20 formed as described above, the inside of the panel is maintained at a constant vacuum level to inject the discharge gas and then seal the circumference.

상술한 바와 같이 구성한 본 발명의 작용 및 효과는 다음과 같다.The operation and effects of the present invention configured as described above are as follows.

먼저 표시음극(13a)과 보조양극(14a)간에 전압을 인가하면 이 전극들 사이에서 미소방전이 발생하고 형광체가 부도체이므로 방전이 하전입자들을 남긴채 곧 중지한다. 그리고 상기 표시음극(13a)과 보조양극(14a) 사이의 전압을 제거한 후, 표시양극(11a)과 표시음극(13a)간에 하나의 펄스전압을 인가하여 방전을 시킴으로써 다량의 하전입자들을 생산한다. 이와 같이, 방전을 일으킬 곳은 다량의 하전입자들을 만들고, 방전을 일으키지 않을 곳(오프 셀: off cell)은 보조방전만 일으키고 축방전은 시키지 않는다.First, when a voltage is applied between the display cathode 13a and the auxiliary anode 14a, microdischarge is generated between the electrodes, and since the phosphor is a non-conductor, the discharge stops shortly, leaving charged particles. After removing the voltage between the display cathode 13a and the auxiliary anode 14a, a single pulse voltage is applied between the display anode 11a and the display cathode 13a to discharge a large amount of charged particles. As such, the place where the discharge is generated makes a large amount of charged particles, and the place where the discharge is not generated (off cell) only causes the secondary discharge and does not cause the axial discharge.

상술한 바와 같은절차로 화상을 완선한 후 표시 음극들과 표시양극들 사이에 다수의 펄스전압을 동시에 인가함으로써, 다량의 하전입자들이 있는 방전 셀은 방전이 계속 이루어지고 하전입자들이 없는 방전 셀은 방전이 이루어지지 않아 화상표시가 밝고 선명하게 된다.After completing the image as described above, by applying a plurality of pulse voltages simultaneously between the display cathodes and the display anodes, the discharge cells with a large amount of charged particles continue to be discharged and the discharge cells without the charged particles are There is no discharge, and the image display is bright and clear.

또한, 형광체층이 표시방전영역에서 떨어져 있고, ITO 코팅이 되어 있지 않기 때문에 방전에 의해 형광체의 수명이 짧아지는 문제점을 해결할 수 있다.In addition, since the phosphor layer is separated from the display discharge region and is not coated with ITO, the problem of shortening the lifetime of the phosphor due to discharge can be solved.

또한, 표시양극과 표시음극을 ITO에 비해 저항이 작은 Ni을 사용하여 제작함으로써 보조방전을 이용하기가 용이하다.In addition, it is easy to use the auxiliary discharge by manufacturing the display anode and the display cathode using Ni having a lower resistance than that of ITO.

Claims (2)

배면유리기판과, 상기 배면유리기판과 결합하여 방전가스를 봉입하기 위한 전면유리기판과, 상기 배면유리 기판쪽에 스트립상으로 형성된 표시음극군과 상기 표시음극군 위에 형성된 격자상 격벽과, 상기 전면유리기판쪽에 상기 표시음극군과 교차되며 대향되게 스트립상으로 형성된 형광체층을 구비하는 플라즈마 디스플레이 장치에 있어서, 상기 배면유리기판상에 상기 표시음극군과는 유전체 층으로 절연되고 직교되게 형성된 표시양극군과, 상기 전면 유리기판과 상기 형광체층 사이에 상기 형광체층을 따라 형성된 보조양극군을 구비함을 특징으로 하는 플라즈마 디스플레이 장치.A back glass substrate, a front glass substrate for sealing discharge gas in combination with the back glass substrate, a display cathode group formed in a strip shape on the rear glass substrate, a grid partition wall formed on the display cathode group, and the front glass A plasma display device having a phosphor layer intersecting the display cathode group and formed in a strip facing the substrate, wherein the display anode group is insulated from the display cathode group with a dielectric layer and orthogonally formed on the rear glass substrate; And an auxiliary anode group formed along the phosphor layer between the front glass substrate and the phosphor layer. 제1항에 있어서, 상기 표시양극군과 표시음극군은 니켈로 만드는 것을 특징으로 하는 플라즈마 디스플레이 장치.The plasma display apparatus of claim 1, wherein the display cathode group and the display cathode group are made of nickel.
KR1019900004440A 1990-03-31 1990-03-31 Plasma display device KR940011719B1 (en)

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