KR950006105B1 - Display device of discharge and driving method of the same - Google Patents

Display device of discharge and driving method of the same Download PDF

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Publication number
KR950006105B1
KR950006105B1 KR1019920012464A KR920012464A KR950006105B1 KR 950006105 B1 KR950006105 B1 KR 950006105B1 KR 1019920012464 A KR1019920012464 A KR 1019920012464A KR 920012464 A KR920012464 A KR 920012464A KR 950006105 B1 KR950006105 B1 KR 950006105B1
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South Korea
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electrode
discharge
electrodes
discharge line
voltage
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KR1019920012464A
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Korean (ko)
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KR940002900A (en
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이시현
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삼성전관주식회사
박경팔
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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
    • G09G3/293—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 address discharge
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The panel includes frond and back plates (1,11), a first electrode group (2) formed on the front plate in parallel, a dielectric layer (3) covering the electrodes (2), a second electrode group (10) orthogonally formed to the electrodes (2) on the back plate (11), barrier ribs (12) formed between the layer (3) and the electrodes (10) in parallel with the electrodes (2), and a fluorescent layer (8) applied on the both sides and lower part of the discharge lines formed by the ribs (12) and the electrodes (10), thereby removing a thin dielectric film applying process.

Description

방전표시장치 및 구동방법Discharge display device and driving method

제1도는 종래의 방전표시장치의 일부절제 단면도.1 is a partial cross-sectional view of a conventional discharge display device.

제2도는 제1도에 도시된 방전표시장치의 횡단면도.2 is a cross-sectional view of the discharge display device shown in FIG.

제3도는 본 발명에 따른 방전표시장치의 일부절제 단면도.3 is a partial cross-sectional view of the discharge display device according to the present invention.

제4도는 제3도의 방전표시장치의 횡단면도.4 is a cross-sectional view of the discharge display device of FIG.

제5도는 본 발명에 따른 구동방법을 수행하기 위한 세그먼트 신호의 파형도.5 is a waveform diagram of a segment signal for performing a driving method according to the present invention.

제6도는 본 발명에 따른 또 다른 구동방법을 수행하기 위한 세그먼트 신호의 파형도.6 is a waveform diagram of a segment signal for performing another driving method according to the present invention.

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

1 : 전면판 2 : 주사전극1: front panel 2: scanning electrode

3, 9 : 유전체 5 : MgO층3, 9: dielectric 5: MgO layer

8 : 형광체 10 : 데이타전극8: phosphor 10: data electrode

11 : 배면판 12 : 격벽11: back plate 12: bulkhead

본 발명은 형광체 및 방전가스를 이용한 반전표시장치에 관한 것으로서 특히, 효율이 우수하고 고정세화가 용이한 특성을 갖는 방전표시장치 및 구동방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverted display device using a phosphor and a discharge gas. More particularly, the present invention relates to a discharge display device and a driving method having excellent characteristics and easy high definition.

표시장치에는 고속전자선을 이용한 음극성관, 저속전자선을 이용한 형광표시관, 가스방전을 이용한 플라즈마 표시장치 및 전계발광효과를 이용한 액정표시장치 등 종류가 다양하다. 이들 디스플레이 장치는 각각 기능과 특성을 달리하므로 그 특성이 맞게 선택적으로 사용되고 상기 표시장치들의 공통점을 전기적 화상신호 또는 데이타신호 등을 시각화 한다는 점이다.There are various types of display devices, such as cathode tubes using high-speed electron beams, fluorescent display tubes using low-speed electron beams, plasma displays using gas discharge, and liquid crystal displays using electroluminescent effects. Since these display apparatuses have different functions and characteristics, they are selectively used according to their characteristics, and the common features of the display apparatuses are to visualize an electric image signal or a data signal.

이중 특히 형광체막을 이용한 종래의 방전표시장치는 방전으로 한 라인을 어드레싱하는 방식의 것으로서, 제1도에 도시한 바와 같이 전면판(1)에 다수 평행하게 배열되는 스트라이프상의 주사전극군(2) 및 버스전극군(4)과 흑격벽(6)과 백격벽(7)으로 구분되어 육각모양으로 층을 이루어 형성되는 어드레싱부(13), 배면판(11) 및 상기 배면판 위에 상기 주사전극과 직교하는 방향으로 스트라이트상에 데이타전극군(10)이 평행하게 배열되는 구조를 갖는다. 상기 주사전극과 어드레싱부 사이 및 상기 어드레싱부와 배면판 사이에는 유전체(9)가 형성되고 상기 육각모양으로 형성되는 어드레싱부의 상단에는 MgO층(5)이 형성되며 측면과 바닥에 형광체(8)가 도포된다.Particularly, the conventional discharge display device using the phosphor film is a method of addressing one line by discharge, and as shown in FIG. 1, a stripe-shaped scanning electrode group 2 arranged in parallel with the front plate 1 and The bus electrode group 4, the black bulkhead 6, and the white bulkhead 7 are divided into an addressing part 13, a back plate 11 and a back plate which are formed in a hexagonal layer and orthogonal to the scan electrode. In this direction, the data electrode groups 10 are arranged in parallel on the stripes. A dielectric 9 is formed between the scan electrode and the addressing portion and between the addressing portion and the back plate, and an MgO layer 5 is formed on an upper end of the hexagonal addressing portion, and a phosphor 8 is formed on the side and the bottom. Is applied.

상기 구조를 갖는 종래의 방전표시장치의 구동방법은 먼저 한 방전라인상의 두개의 주사전극에 AC구동전압을 인가하고 다음 방전라인의 두 전극에 상기 전압을 인가하는 방식으로 인가된 전압에 의해 두 주사전극 사이의 방전공간에 방전이 순차적으로 일어나게 하는 과정을 구비하여, 상기 주사전극과 직교하는 방향으로 형성되는 데이타전극군에 AC전압을 이용 데이타를 인가함으로써 구동된다. 상기 데이타 전극 구동시 데이타 전극에 인접한 유전체와 형광체에 전류가 축적되고 상기 축적된 전류는 방전후에 유전체에 벽전하를 형성한다.In the conventional method of driving a discharge display device having the above structure, two scans are performed by applying an AC driving voltage to two scan electrodes on one discharge line and then applying the voltage to two electrodes on the next discharge line. A discharge is sequentially generated in the discharge space between the electrodes, and is driven by applying data using an AC voltage to a group of data electrodes formed in a direction orthogonal to the scan electrode. When the data electrode is driven, current is accumulated in the dielectric and the phosphor adjacent to the data electrode, and the accumulated current forms wall charges in the dielectric after discharge.

상기 벽전하는 차기의 쓰기방전에 반대방향으로 작용하는 전계를 형성하게 되는데, 실제로 쓰기 시간이 2∼3usec가 소요되는 이유로 이에 맞는 커패시턴스 용량은 2×10-6F/m이상인 경우 쓰기방전이 어렵고 커패시턴스가 작은 경우에는 방전공간에서의 전압강하로 인한 쓰기방전이 어렵게 되는 문제점이 발생하고 이를 해소하기 위한 커패시턴스의 값을 결정하는 형광체 및 유전체의 합성방법은 제작상에 대단히 어려운 기술이고 그 값의 편차로 인한 표시의 안전성이 결여된다. 또한 상기 방전표시장치는 제작시에 유전체층을 형성해야 하고 박막에 의한 방법으로 전극히 형성되며 격벽이 2중으로 되어 제작상에 어려운 문제점이 있다.The wall charges form an electric field acting in the opposite direction to the next write discharge. In fact, the write capacity is 2 × 10 -6 F / m or more, and the write capacitance is difficult and the capacitance is equivalent to the reason that the write time takes 2 to 3 usec. In the case of a small value, the write discharge becomes difficult due to the voltage drop in the discharge space, and a method of synthesizing the phosphor and the dielectric to determine the capacitance value to solve the problem is a very difficult technique in manufacturing and the variation of the value Lack of safety due to the indication In addition, the discharge display device has a problem in that a dielectric layer must be formed at the time of manufacture, and the electrode is formed by the thin film method, and the barrier ribs are doubled.

따라서 본 발명의 목적은 상기 주사전극과 평행하게 격벽을 형성하고 데이타 전극군을 격벽과 직교하는 방향으로 방전공간에 노출된 형태로 구성함으로써, 상기 문제점을 해결하는데 있다.Accordingly, an object of the present invention is to solve the above problem by forming a partition wall parallel to the scan electrode and configuring the data electrode group exposed to the discharge space in a direction orthogonal to the partition wall.

본 발명에 의한 방전표시장치의 구성은 첨부된 제3도 및 제4도에 도시된 바와 같이 전면판(1) 및 배면판(11), 상기 전면판에 상호 평행하게 형성되는 제1전극군(2), 상기 제1전극군을 덮고 있는 유전체(3), 상기 배면판에 상기 제1전극군과 직교하는 방향으로 형성되는 제2전극군(10), 상기 유전체와 상기 제2전극군 사이에 상기 제1전극군과 평행한 방향으로 형성되는 격벽(12) 및 상기 격벽과 제2전극군에 의해 형성되는 방전라인의 양 측면과 하부에 도포되는 형광체(8)로 구성된다.The structure of the discharge display device according to the present invention includes a front electrode 1 and a rear plate 11 and a first electrode group formed parallel to each other as shown in FIGS. 3 and 4. 2), a dielectric 3 covering the first electrode group, a second electrode group 10 formed on the rear plate in a direction orthogonal to the first electrode group, and between the dielectric and the second electrode group. A partition 12 formed in a direction parallel to the first electrode group and a phosphor 8 applied to both side surfaces and a lower portion of the discharge line formed by the partition and the second electrode group.

상기 구성에 따른 본 발명의 구동방법을 첨부된 제5도 및 제6도를 이용하여 설명하고자 한다.The driving method of the present invention according to the above configuration will be described with reference to FIGS. 5 and 6.

먼저 제5도에 의한 방법을 보면 주사전극을 기수번째와 우수번째로 분류하고 기수번째의 전극군을 K1, K2, K3...Kn+1이라고 나타내고 우수번째의 전극군을 G1,G2,G3...Gn이라고 나타내면 첫 방전라인에 주사선택신호가 인가되는 경우에 첫 기수번째의 전극인 K1전극에 VK1을 주기 T동안 인가하고 그 다음에 위치하는 첫 우수번째의 전극인 G1전극에 VK2를 주기 T동안 인가하며 주사선택신호가 인가되지 않은 경우 기수번째의 전극에는 VB1을 인가하고 그 다음에 위치하는 우수번째의 전극에는 VB2를 인가하는 것으로 상기 VK1과 VK2의 전위치는 방전개시전압 이상이 되고 상기 VK1과 VB1및 VB1과 VK2의 전위차는 방전개시전압이하가 되도록 하여 선택된 플라즈마 방전라인만이 방전이 일어나게 하고 인접한 채널에는 방전이 일어나지 않도록 전압레벨을 조정한다.First, according to the method of FIG. 5, the scan electrodes are classified into odd and even numbers, and the odd electrode groups are denoted as K 1 , K 2 , K 3 ... K n + 1 , and the even electrode groups are denoted by G. 1 , G 2 , G 3 ... G n , when the scan selection signal is applied to the first discharge line, V K1 is applied to the K 1 electrode, which is the first odd-numbered electrode, for a period T, and the first position V K2 is applied to the G 1 electrode, which is the even- numbered electrode, for a period T. When the scan selection signal is not applied, V B1 is applied to the odd-numbered electrode and V B2 is applied to the next even- numbered electrode. The potential value of V K1 and V K2 is equal to or higher than the discharge start voltage, and the potential difference between V K1 and V B1 and V B1 and V K2 is equal to or lower than the discharge start voltage so that only the selected plasma discharge line is discharged. Do not discharge the channel And adjusts the voltage level.

두번째 방전라인에 주사선택신호가 인가되는 경우에 우수번째 전극에는 VK2를 주기 T동안 계속 인가하고 그 다음에 위치하는 기수번째의 전극에 VK1를 주기 T동안 인가하는 것으로서 기수번째의 전극과 우수번째의 전극, 상기 우수번째의 전극과 그 다음의 기수번째의 전극에 구동전압차를 주기 T의 간격으로 기수번째의 전극에 VK1을 2T동안 순차적으로 인가하는 방법으로 방전을 실현한다. 이때 데이타 전극을 통해 인가되는 구동전압(D1, D2, ... Dn)은 직류전압이 사용되고 상기 구동전압에 의해 상기 주사전극의 전압과 교차하는 방전셀에서 형광체에 의한 빛이 형광되는 방법으로 구동된다. 상기 방법으로 방전을 실현하는 경우 필요로 하는 제2전극군의 수는 표시하고자 하는 방전라인의 수보다 하나 많게 형성된다.When the scan selection signal is applied to the second discharge line, V K2 is continuously applied to the even- numbered electrode for the period T, and V K1 is applied to the even-numbered electrode next to the odd- numbered electrode for the period T. The discharge is realized by applying V K1 sequentially to the odd- numbered electrode for 2T at intervals of the period T by applying a driving voltage difference to the first electrode, the even-numbered electrode and the next odd- numbered electrode. At this time, the driving voltage (D 1 , D 2 , ... D n ) applied through the data electrode is a direct current voltage and the light emitted by the phosphor in the discharge cell intersects the voltage of the scan electrode by the driving voltage. Driven by the method. When the discharge is realized by the above method, the number of second electrode groups required is one more than the number of discharge lines to be displayed.

또 다른 구동방법은 제6도에 나타낸 바와 같이 한 화면을 2개의 방전라인으로 구성하는 경우 기수번째의 전극(K1, K2, K3, 1Kn+1)에 일정 전압 Vb1을 인가하고 우수번째의 전극(G1,G2, G3,...Gn)에 주기 T의 간격으로 VK2의 전압을 순차적으로 인가함으로써 인접한 두개의 방전라인을 동시에 순차적으로 구동하는 방식이다.Another driving method is to apply a constant voltage Vb1 to the odd-numbered electrodes K 1 , K 2 , K 3 , 1K n + 1 when one screen is composed of two discharge lines as shown in FIG. By sequentially applying the voltage of V K2 to the first electrodes G 1 , G 2 , G 3 , ... G n at intervals of the period T, two adjacent discharge lines are sequentially driven simultaneously.

이를 좀더 상세히 설명하면 첫 방전라인에 주사선택, 신호가 인가되는 경우 첫 우수번째 전극에 전압 VK2를 인가하고 선택되지 않은 우수번째의 전극에 전압 Vb2를 인가하는 것으로서 상기 첫 기수분째의 전극전압 Vb1과 상기 Vk2의 전위차 및 상기 VK2와 그 다음 기수번째의 전압 Vb1과 전위차는 방전개시전압 이상이 되도록 하여 우수번째의 전극에 주기 T의 간격으로 VK2의 전압을 순차적으로 인가함으로써 인접한 두 개의 방전라인을 동시에 순차적으로 구동하는 것이다.In more detail, when the scan selection and the signal are applied to the first discharge line, the voltage V K2 is applied to the first even electrode and the voltage Vb2 is applied to the even electrode that is not selected. Vb1 and the Vk2 potential difference and the V K2 and then the odd-numbered voltage Vb1 and the potential difference of the two two adjacent by applying sequentially the voltage V K2 to the interval of the cycle of the solid second electrode T to ensure that the discharge start voltage over The discharge lines are driven in sequence at the same time.

이상과 같은 본 발명의 방전표시장치는 데이타 전극상에 유전체를 도포하지 않고 격벽을 형성하고 구동시 데이타 전극상의 유전체에 의한 벽전하에 영향을 받지 않는다.The discharge display device of the present invention as described above forms a partition without applying a dielectric on the data electrode and is not affected by wall charges caused by the dielectric on the data electrode during driving.

이에 따라서 제작시 박막 유전체의 도포 공정이 없어지고 고정세화가 용이하며 형광체의 합성 커패시턴스 값에 따른 표시 특성의 저하가 없어지고 주사전극 사이의 전류축적 및 방전후의 커패시턴스 값에 따른 표시특성의 저하가 없어지고 주사전극 사이의 전류축적 및 방전후의 축전전류 소거를 노출된 전극에 의해 제어하므로 완전한 리프레싱이 가능하며 확실하고 빠른 동작시간의 특성을 얻을 수 있어 메모리 및 TV화상표시장치에 유용하다. 또한 방전가스 공간에 노출되게 데이타 전극에 형성하여 고전압으로 제어함으로써 저전압구동시 전극열화에 의한 수명의 문제점을 개선하는 효과가 있다.This eliminates the application process of the thin film dielectric during fabrication, facilitates high definition, and eliminates the deterioration of display characteristics due to the composite capacitance value of the phosphor, and deterioration of display characteristics due to the current accumulation between the scan electrodes and the capacitance value after discharge. It eliminates the current accumulation between the scan electrodes and the elimination of the stored current after discharge by the exposed electrode, so that it is possible to completely refresh and obtain the characteristics of fast and reliable operation time, which is useful for memory and TV image display devices. In addition, by forming the data electrode exposed to the discharge gas space to control at a high voltage, there is an effect of improving the life problems due to electrode degradation during low voltage driving.

Claims (1)

투명한 전면판 및 배면판 ; 상기 전면판에 평행하게 형성되는 제1전극군 ; 상기 배면판에 상기 제1전극군과 직교하는 방향으로 방전공간에 노출되어 형성되는 제2전극군 ; 상기 제1전극군과 평행하게 상기 유전체막 상에 형성되어 상기 전면판 및 배면판 사이의 간격을 유지하고 방전공간을 구분하기 위한 복수의 격벽들 ; 및 상기 격벽들의 측면과, 상기 격벽들 사이로 노출된 배면판의 내면에 도포되는 형광체 막을 구비하는 방전표시장치를 구동함에 있어서, 한 방전라인씩 구동되어 구동되는 경우 기수번째의 전극인 Kn번째의 전극과 그 다음에 위치하는 우수번째의 전극인 Gn번째의 전극을 인에이블시키어 인에이블되는 두 전극사이에 형성되는 가스방전라인에서 방전이 일어나게 하는 과정과, 상기 방전된 방전라인의 차기번째 방전라인의 구동시 주사신호에 따라 상기 인에이블된 우수번째의 전극인 Gn번째의 전극과 그 다음에 위치하는 기수번째의 전극인 Kn+1번째의 전극을 인에이블시키어 인에이블되는 두 전극 사이에 형성된 가스방전라인에서 방전이 일어나게 하는 과정을 구비하여 방전라인 좌, 우측의 전극을 인에이블시키어 순차적으로 방전라인을 구동하고 데이타 전극을 통해 인가되는 표시전압에 의해 상기 주사전극의 전압과 교차하는 단위 방전셀에서 형광체에 의한 빛이 형성되게 하는 것을 특징으로 하는 방전표시장치의 구동방법.Transparent front and back plates; A first electrode group formed in parallel with the front plate; A second electrode group formed on the rear plate by being exposed to the discharge space in a direction orthogonal to the first electrode group; A plurality of partition walls formed on the dielectric film in parallel with the first electrode group to maintain a gap between the front plate and the back plate and to classify a discharge space; And a phosphor display film having a side surface of the partition walls and a phosphor film applied to an inner surface of the back plate exposed between the partition walls, wherein when driven by one discharge line, the K nth electrode is the odd electrode. Enabling the discharge to occur in a gas discharge line formed between the electrode and the G nth electrode, which is the next-most electrode, which is located next, and the two electrodes being enabled, and the next discharge of the discharged discharge line. When the line is driven, between the two electrodes being enabled by enabling the G nth electrode, which is the enabled even-numbered electrode, and the Kn + 1th electrode, which is the next-odd electrode, next to the scan signal. A process of causing a discharge to occur in the gas discharge line formed in the electrode to enable the electrodes on the left and right side of the discharge line to sequentially drive the discharge line By a display voltage to be applied via the data electrodes and driving method of the discharge display device, characterized in that to cause the light by the fluorescent substance formed in the unit discharge cells intersecting the voltage of the scanning electrode.
KR1019920012464A 1992-07-13 1992-07-13 Display device of discharge and driving method of the same KR950006105B1 (en)

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