KR940008711B1 - Driving method for plasma display panel - Google Patents
Driving method for plasma display panel Download PDFInfo
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- KR940008711B1 KR940008711B1 KR1019920003984A KR920003984A KR940008711B1 KR 940008711 B1 KR940008711 B1 KR 940008711B1 KR 1019920003984 A KR1019920003984 A KR 1019920003984A KR 920003984 A KR920003984 A KR 920003984A KR 940008711 B1 KR940008711 B1 KR 940008711B1
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- 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
- G09G3/288—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 using AC panels
- G09G3/291—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 using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/294—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 using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
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- 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
- G09G3/288—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 using AC panels
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
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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
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
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- Plasma & Fusion (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
Abstract
Description
제1도는 본 발명에 따른 플라즈마 디스플레이 판넬의 일실시예의 구조도를 나타내는 것이다.1 is a structural diagram of an embodiment of a plasma display panel according to the present invention.
제2도는 본 발명에 따른 플라즈마 디스플레이 판넬의 다른 실시예의 구조도를 나타내는 것이다.2 is a structural diagram of another embodiment of a plasma display panel according to the present invention.
제3a에서 제3c도는 본 발명에 따른 플라즈마 디스플레이 판넬의 구동방법을 설명하기 위한 구조도를 나타내는 것이다.3a to 3c show a structural diagram for explaining a method of driving a plasma display panel according to the present invention.
제4a에서 4d도는 본 발명에 다른 플라즈마 디스플레이 판넬의 구동을 설명하기 위한 구동파형을 나타내는 것이다.4A to 4D show driving waveforms for explaining the driving of the plasma display panel according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 전면유리 2 : 표시전극1: front glass 2: display electrode
3 : 격벽 4 : 유전체층3: partition 4: dielectric layer
5 : 유지전극 6 : 주사전극5 sustain electrode 6 scan electrode
7 : 배면유리 8 : MgO층7: back glass 8: MgO layer
본 발명은 플라즈마 디스플레이 판넬에 관한 것으로, 특히 플라즈마 디스플레이 판넬의 구동방법에 관한 것이다.The present invention relates to a plasma display panel, and more particularly, to a method of driving a plasma display panel.
종래의 플라즈마 디스플레이 장치에는 AC형과 DC형이 있다. 그중에서 AC형이 음극 재료의 수명에 있어서 우수하다. 특히 칼라 플라즈마 디스플레이 판넬의 경우에서는 네온-오렌지 단색에 비해 구동전압이 높고 방전가스 자체가 무거우므로 현재의 니켈 후막으로서는 수명문제를 해결하기 어렵다. 본 발명은 DC형 플라즈마 디스플레이 판넬에 AC형 음극(즉, 전극에 유전체층 및 MgO 층이 코팅된 음극)을 도입하자는 발상에서 도입되었다. 그런데 AC형을 전극으로 시작하면 AC형의 방전원리상 한번 방전하면 곧 방전은 정지되므로, 유지방전을 교류로 구동하고 표시 및 소거는 DC형 구동방법을 그대로 사용하기로 하였다.Conventional plasma display apparatuses include AC type and DC type. Among them, the AC type is excellent in the life of the cathode material. In particular, in the case of the color plasma display panel, since the driving voltage is higher and the discharge gas itself is heavier than the neon-orange monochromatic color, it is difficult to solve the life problem of the current nickel thick film. The present invention was introduced in the idea of introducing an AC type cathode (i.e., a cathode coated with a dielectric layer and an MgO layer) to a DC plasma display panel. However, if the AC type is started as an electrode, the discharge is stopped as soon as it is discharged once, according to the discharge principle of the AC type. Therefore, the sustain discharge is driven by an alternating current and the DC type driving method is used as it is.
본 발명의 목적은 DC형 플라즈마 디스플레이 장치의 수명을 연장할 수 있는 플라즈마 디스플레이 판넬의 구동방법을 제공하는데 있다.An object of the present invention is to provide a method of driving a plasma display panel that can extend the life of the DC-type plasma display device.
이와 같은 목적을 달성하기 위한 본 발명의 플라즈마 디스플레이 판넬의 구조는 상판과 하판으로 이루어지고, 상판은 상판유리에 양극 및 격벽이 형성되고, 하판은 하판유리 상에 유지전극이 형성되고 그위에 소정두께로 유전체 및 MgO가 입혀져 있다.The structure of the plasma display panel of the present invention for achieving the above object consists of an upper plate and a lower plate, the upper plate is formed with an anode and a partition wall on the upper glass, the lower plate is formed with a sustain electrode on the lower glass and a predetermined thickness thereon. The dielectric and MgO are coated.
이와 같은 목적을 달성하기 위한 본 발명의 플라즈마 디스플레이 판넬의 구동방법은 표시양극이 가로로, 주사음극이 세로로 가로와 세로방향으로 매트릭스를 구성하고 방전유지용 유지전극이 가로방향 혹은 세로방향의 스트라이프 혹은 한개의 판으로 형성된 플라즈마 디스플레이 판넬을 구동하기 위한 구동회로에 있어서, 표시양극에는 포지티브 파형의 데이타 신호를 입력하고 주사음극에는 네가티브 파형을 1/스캔라인수의 듀티로 순차 주사하고 유지전극에는 일정주기의 교번파를 입력하고 유지전극에는 스트라이프이거나 판이거나 하나의 파형만 인가하고 표시양극의 포지티브 타이밍과 주사음극의 네가티브 타이밍은 동일하게 되고 이 타이밍이 유지파형의 포지티브 혹은 네가티브 타이밍이 되게 하여 기입하고 유지는 기입에 의한 유지전극상의 벽전하와 주사음극상의 벽전하에 의해 유지파형으로 계속되고 각 파형의 주파수는 메모리 방식의 제조표시에 의해 유지파형으로 계속되는 것을 특징으로 한다.In order to achieve the above object, the method of driving the plasma display panel according to the present invention comprises a matrix in which the display anode is horizontal, the scan cathode is vertically and horizontally and vertically, and the sustain electrode for discharge holding is horizontally or vertically striped. Alternatively, in a driving circuit for driving a plasma display panel formed of one plate, a positive waveform data signal is input to the display anode, a negative waveform is sequentially scanned at a duty ratio of 1 / scan line to the scan cathode, and a constant is applied to the sustain electrode. Input the alternating wave of the period and apply only one waveform to the sustaining electrode. The positive timing of the display anode and the negative timing of the scanning cathode are the same. Sustain is sustain electrode by writing Continues to maintain the waveform by the wall charges and negative wall charges on the scan frequency of each waveform is characterized in that subsequent to the waveform held by the manufacturing of the display memory system.
제1도는 본 발명에 다른 플라즈마 디스플레이 장치의 전극 구조를 나타내는 것이다. 제1도에 있어서, 전극 구조는 상판과 하판으로 이루어지고, 상판은 상판유리(1) 에 양극(2) 및 격벽(3)이 형성되어 있다. 하판은 하판유리(7) 상에 유지전극(5)가 형성되고 그위에 소정의 두께로 유전체(4) 및 MgO(8)가 입혀져 있다. 그리고, 유지전극(5)이 주사음극(6)을 전부 덮는 한개로 되어 있으나, 제2도에 보여진 것과 같이, 유지전극(5)이 주사음극(6)의 수에 1대 1대응 이어도 상관없다.1 shows an electrode structure of a plasma display device according to the present invention. In FIG. 1, the electrode structure consists of an upper plate and a lower plate, and the upper plate has the anode 2 and the partition 3 formed in the upper plate glass 1. As shown in FIG. In the lower plate, the sustain electrode 5 is formed on the lower plate 7 and the dielectric 4 and the MgO 8 are coated on the lower plate 7 at a predetermined thickness. In addition, although the sustain electrode 5 is one which covers all the scanning cathodes 6, as shown in FIG. 2, the sustain electrode 5 may be one-to-one correspondence with the number of the scanning cathodes 6. As shown in FIG. .
또한, 도시하지는 않았지만 유지전극(5)가 주사음극(6)의 수에 2대 1대응 이거나 어떠한 대응이어도 상관없다.Although not shown, the sustain electrode 5 may correspond to the number of the scanning cathodes 6 in a one-to-one correspondence or any correspondence.
제3a에서 3c도는 본 발명에 따른 플라즈마 디스플레이 판넬의 동작을 설명하기 위한 구조도를 나타내는 것이다.3a to 3c show structural diagrams for explaining the operation of the plasma display panel according to the present invention.
제4a도는 본 발명에 따른 플라즈마 디스플레이 판넬의 전류 대 전압특성을 나타내는 것이다. 제4a에 있어서, 방전 개시 전압(Vb) 혹은 (-Vb)에 의해서 방전이 개시되고, 그 이후에 방전을 유지하기 위해서 한번 방전이 일어난 것은 한번은 포지티브 전압의 유지전극(Vs)에 의해서 방전을 유지하고 그 다음은 네가티브 전압의 유지전극(-Vs)에 의해서 방전을 유지한다. 인가파형은 한번 방전된 것이 다시 방전될 수 있도록 설정한다. 이때 물론 벽전하를 고려한다. 즉, 유지펄스 전압과 벽전압을 합한 값이 유지전압보다 크거나 같은 값을 가진다. 또한, 주파수는 앞서 언급한 계조표시의 비트수와 하전입자의 존재시간(life time)에 의해 결정된다. 표시 양극과 주사 음극 인가파형은 기입시 양전극에 인가되는 전압이 방전개시전압 (Vb)보다 크도록 설정하고, 유지 및 소거시에는 유지방전 및 소거되도록 유지파형의 중앙레벨에 오도록 설정한다.Figure 4a shows the current versus voltage characteristics of the plasma display panel according to the present invention. 4A, discharge is initiated by the discharge start voltage Vb or (-Vb), and discharge is then performed once by the sustain electrode Vs of the positive voltage to maintain the discharge thereafter. Next, the discharge is held by the sustain electrode (-Vs) of negative voltage. The applied waveform is set so that once discharged, it can be discharged again. Of course, consider the wall charge. That is, the sum of the sustain pulse voltage and the wall voltage has a value equal to or greater than the sustain voltage. Also, the frequency is determined by the number of bits of the gradation display mentioned above and the life time of the charged particles. The display anode and scan cathode applied waveforms are set so that the voltage applied to the positive electrode at the time of writing is greater than the discharge start voltage Vb, and is set to be at the center level of the sustain waveform so as to sustain discharge and erase during sustain and erase.
제4b도는 본 발명에 따른 플라즈마 디스플레이 판넬의 일실시에의 구동방법을 나타내는 것이다. 펄스(A)는 유지전극 인가파형을 나타내는 것이고, 펄스(B)는 포시전극 인가파형을 나타내는 것이고, 펄스(C)는 주사전극 인가파형을 나타내는 것이다. 유지전극에 펄스(A)가 계속적으로 인가되고 펄스(B)와 펄스(C)가 각각 동일한 타이밍에 표시전극과 주사전극에 인가되면 표시가 일어난다. 그 이후에는 펄스(A)에 의해서 방전이 유지된다. 기입시에는 표시 양극과 주사음극에 인가되는 전압의 차이에 의해 방전이 개시된다.Figure 4b shows a driving method of an embodiment of a plasma display panel according to the present invention. The pulse A represents the sustain electrode application waveform, the pulse B represents the posi- tive electrode application waveform, and the pulse C represents the scan electrode application waveform. When the pulse A is continuously applied to the sustain electrode and the pulses B and C are applied to the display electrode and the scan electrode at the same timing, the display occurs. After that, the discharge is maintained by the pulse A. FIG. At the time of writing, discharge starts due to a difference in voltage applied to the display anode and the scanning cathode.
제3a도는 표시시의 동작을 설명하기 위한 것이다. 이때 표시양극의 온 레벨은 유지전극과 방전이 일어나지 않도록 설정되어 있다. 주사음극상 유전체에 + 벽전하를 형성한다.3A is for explaining the operation at the time of display. At this time, the on level of the display anode is set so that the sustain electrode and the discharge do not occur. Positive wall charges are formed on the dielectric on the scanning cathode.
제3b도는 유지시의 동작을 설명하기 위한 것이다. 주사전극상 유전체에 형성된 +이온으로 인해 전압 레벨이 높아져서 유지펄스의 로우 레벨 또는 하이 레벨과 방전한다. 즉, 주사음극상 유전체에 전자를 축적하고, 유지전극상 유전체에 이온을 축적한다. 따라서, 벽전하는 완전히 형성되고 이후 유지펄스에 의해서 유지방전이 계속된다. 또한 유지방전시의 표시양극과 주사음극의 레벨은 동일하나 표시양극은 가스에 노출되어 있어 벽전하가 없으므로 유지전극과 표시양극사이에는 방전이 일어나지 않고 주사음극에 방전이 일어난다.3B is for explaining the operation during the holding. Due to the + ions formed in the dielectric on the scan electrodes, the voltage level is increased to discharge with the low or high level of the sustain pulse. Namely, electrons are accumulated in the scanning cathode dielectric and ions are accumulated in the dielectric on the sustain electrode. Thus, the wall charge is completely formed and then the sustain discharge is continued by the sustain pulse. In addition, the level of the display anode and the scanning cathode during the sustain discharge is the same, but since the display anode is exposed to the gas and there is no wall charge, there is no discharge between the sustain electrode and the display anode, and a discharge occurs in the scanning cathode.
제3c도는 소거시의 동작을 설명하기 위한 것이다. 주사전극에 짧은 로우 레벨을 인가하여 유지전극과 주사전극사이에 방전이 개시된다. 또는 양극에도 하이 레벨을 인가하여 표시양극과 주사음극사이에 방전을 일으킬수도 있다. 즉, 주사음극상 유전체의 벽전하가 소멸한다.3C is for explaining the operation during erasing. The discharge is initiated between the sustain electrode and the scan electrode by applying a short low level to the scan electrode. Alternatively, a high level may be applied to the anode to cause a discharge between the display anode and the scan cathode. In other words, the wall charge of the dielectric on the scanning cathode disappears.
제4c도는 광 출력을 나타내는 파형이다.4C is a waveform showing light output.
제4d도는 본 발명에 따른 평판형 디스플레이 판넬의 다른 실시예의 구동 방법을 나타내는 것이다.4d illustrates a driving method of another embodiment of a flat panel display panel according to the present invention.
따라서, 본 발명에 따른 플라즈마 디스플레이 판넬의 구조 및 구동방법을 이용하면 AC형 음극을 이용함으로서 수명이 길어지게 되고, 메모리 방식을 사용하여 구동함으로서 휘도가 향상된다.Therefore, when the structure and driving method of the plasma display panel according to the present invention are used, the lifetime is extended by using the AC type cathode, and the luminance is improved by driving by using the memory method.
Claims (11)
Priority Applications (3)
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KR1019920003984A KR940008711B1 (en) | 1992-03-11 | 1992-03-11 | Driving method for plasma display panel |
DE4301437A DE4301437A1 (en) | 1992-03-11 | 1993-01-20 | Controlling plasma discharge display panel - using pulse control signals generated by sequence circuits that are applied to hold cathode and anode electrodes |
JP863593A JP2670411B2 (en) | 1992-03-11 | 1993-01-21 | Driving method of plasma display panel |
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KR1019920003984A KR940008711B1 (en) | 1992-03-11 | 1992-03-11 | Driving method for plasma display panel |
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KR940008711B1 true KR940008711B1 (en) | 1994-09-26 |
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JPH10228606A (en) * | 1997-02-17 | 1998-08-25 | Matsushita Electric Ind Co Ltd | Magnetic head and its production |
KR100546089B1 (en) * | 1997-12-17 | 2006-05-16 | 엘지전자 주식회사 | Plasma display panel |
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