WO2001031674A1 - Panneau d'affichage a plasma, a deux decharges simultanees - Google Patents

Panneau d'affichage a plasma, a deux decharges simultanees Download PDF

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Publication number
WO2001031674A1
WO2001031674A1 PCT/KR2000/001224 KR0001224W WO0131674A1 WO 2001031674 A1 WO2001031674 A1 WO 2001031674A1 KR 0001224 W KR0001224 W KR 0001224W WO 0131674 A1 WO0131674 A1 WO 0131674A1
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WO
WIPO (PCT)
Prior art keywords
electrodes
electrode
scan
pdp
simultaneous double
Prior art date
Application number
PCT/KR2000/001224
Other languages
English (en)
Inventor
Young Dae Ju
Jung Gwan Han
Original Assignee
Orion Electric Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orion Electric Co., Ltd. filed Critical Orion Electric Co., Ltd.
Publication of WO2001031674A1 publication Critical patent/WO2001031674A1/fr

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Classifications

    • 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
    • H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
    • H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
    • 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
    • H01J11/22—Electrodes, e.g. special shape, material or configuration
    • 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
    • G09G3/298—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 using surface discharge panels
    • G09G3/2983—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 using surface discharge panels using non-standard pixel electrode arrangements
    • G09G3/2986—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 using surface discharge panels using non-standard pixel electrode arrangements with more than 3 electrodes involved in the operation
    • 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
    • H01J11/22—Electrodes, e.g. special shape, material or configuration
    • H01J11/24—Sustain electrodes or scan electrodes

Definitions

  • the present invention relates to a plasma display panel
  • PDP PDP
  • a PDP is a display device which displays characters or graphics using light emitted from a plasma generated during gas discharge.
  • the PDP is divided into a direct current type PDP driven by a direct current voltage and an alternating current type PDP driven by a sinusoidal alternating current voltage or a pulse voltage.
  • the alternating current type PDP is divided into an opposing electrode type and an area discharge type in accordance with an electrode structure and a discharge mode.
  • An area discharge alternating current type PDP is widely used in view of technical aspects.
  • Fig. 1 is a schematic view of a related art alternating current type PDP of a three-electrode area discharge type. As shown in Fig.
  • scan electrodes 11 (X electrodes) and sustain electrodes 12 (Y electrodes) for scan and sustain discharge are formed on one surface of a glass substrate which is an upper substrate 10 of a display surface.
  • the X electrodes and the Y electrodes respectively include transparent electrodes 11a and 12a of indium-tin oxide (ITO) and bus electrodes lib and 12b of metal.
  • ITO indium-tin oxide
  • An address electrode 17 for designating each cell is aligned in a lower substrate 16 opposing the upper substrate 10.
  • a phosphor is deposited on an entire surface of the address electrode 17 to discharge visible rays.
  • the upper substrate 10 and the lower substrate 16 which oppose to each other are sealed, and a discharge gas is injected thereinto. In this manner, a PDP is completed.
  • the aforementioned related art three-electrode area discharge alternating current type PDP increases life span of the phosphor material as compared with a two-electrode alternating current type PDP, but is not efficient in view of micro discharge.
  • the same phase pulse is applied to the same position with an adjacent cell, thereby causing crosstal due to mutually discharge interference. Since one light-emission is induced whenever one pulse is applied, light-emission is increased as the number of applying pulses increases.
  • the present invention is directed to a simultaneous double discharge PDP that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a simultaneous double discharge PDP which improves luminous efficiency and luminance by simultaneously generating discharge in a plurality of pixels within a unit cell.
  • the simultaneous double discharge PDP is characterized in that the N x cells include first and second scan electrodes which are aligned in parallel on the first substrate at regular intervals; first and second sustain electrodes which are aligned in parallel between the first and second scan electrodes at regular intervals; and an address electrode aligned orthogonally to the respective scan electrodes and sustain electrodes on the second substrate, wherein the first and second scan electrodes are driven through the common connection to all the scan electrodes aligned in the cells of the PDP, the first and second sustain electrodes are driven through the common connection in the cells, and the discharge operation is simultaneously performed between the first scan electrode and the first sustain electrode, and between the second scan electrode and the second sustain electrode .
  • the simultaneous double discharge PDP is characterized in that the N x M cells include first and second scan electrodes which are aligned in parallel on the first substrate at regular intervals; and a sustain electrode which is aligned orthogonally to the respective scan electrodes on the second substrate, wherein the respective scan electrodes are driven through the common connection to all the scan electrodes in the cells of the PDP, the sustain electrode addresses a pair of the first and second scan electrodes included in each cell so that the discharge operation is simultaneously performed between the first scan electrode and the second scan electrode in each cell.
  • Fig. 1 is a schematic view showing a related art alternating current type PDP of a three-electrode area discharge
  • Fig. 2 is a schematic view illustrating the operation when a simultaneous discharge mode is applied to the related art alternating current type PDP of a three-electrode area discharge of Fig. 1;
  • Fig. 3 is a schematic view of an alternating current type PDP of a three-electrode simultaneous double discharge according to the first embodiment of the present invention;
  • Fig. 4 is a schematic view of a PDP of a three- electrode simultaneous double discharge according to the second embodiment of the present invention.
  • Fig. 5 is a schematic view of a PDP of a three- electrode simultaneous double discharge according to the third embodiment of the present invention.
  • Fig. 6 is a schematic view illustrating discharge state of an alternating current type PDP of a three-electrode simultaneous double discharge suggested in Figs. 3 to 5;
  • Fig. 7 is a schematic view of a PDP of a three- electrode simultaneous double discharge according to the fourth embodiment of the present invention
  • Fig. 8 is a schematic view illustrating discharge state of an alternating current type PDP of a three-electrode simultaneous double discharge suggested in Fig. 7;
  • Figs. 9a and 9b are graphs illustrating a charge density difference between the PDP of the present invention and the related art PDP.
  • Figs. 10a and 10b are graphs illustrating an electron density difference between the PDP of the present invention and the related art PDP.
  • an alternating current type PDP improves discharge efficiency without varying a driving mode in the related art area discharge alternating current type PDP.
  • a simultaneous double discharge PDP is provided in which two X electrodes in one cell of a three-electrode alternating current type PDP are simultaneously discharged.
  • Fig. 2 is a schematic view illustrating the operation when a simultaneous discharge mode is applied to the related art alternating current type PDP of a three-electrode area discharge of Fig. 1.
  • two X electrodes 11 and 13 should completely be equal to one Y electrode 12 so that charges from the Y electrode 12 are exactly divided into 1/2 to enable symmetrical simultaneous double discharge.
  • Types of applying pulses should completely be equal to allow a plurality of cells in one line to perform the same reaction.
  • Fig. 3 shows a structure and the operation of an alternating current type PDP of a three-electrode area discharge according to the first embodiment of the present invention.
  • an electrode structure of one cell is exemplified.
  • X electrodes 21 and 24 and Y electrodes 22 and 23 for scan and sustain discharge are formed on one surface of an upper substrate 10 in a cell constituting a PDP.
  • the X electrodes 21 and 24 and the Y electrodes 22 and 23 respectively include ITO electrodes (transparent electrodes) 21a, 22a, 23a, and 24a and bus electrodes 21b, 22b, 23b, and 24b.
  • the Y electrodes 22 and 23 are aligned in parallel by the same width as the distance between each other and are narrower than the distance of the X electrodes 21 and 24. At this time, since a voltage having the same polarity is simultaneously applied to the Y electrodes 22 and 23, the Y electrodes 22 and 23 are hardly affected by interference despite the distance between two is small.
  • the X electrodes 21 and 24 are commonly connected to be simultaneously driven.
  • the Y electrodes 22 and 23 are divided into two within the panel but are commonly connected to a pad or a circuit terminal (FPC) outside the panel so that they are simultaneously driven.
  • FPC circuit terminal
  • a driving means or circuit for driving the X electrodes 21 and 24 and the Y electrodes 22 and 23 is constituted in the same manner as that of the related art. That is, in the related art three-electrode alternating current type PDP, X electrodes of each line are connected to one common line to be simultaneously driven. Likewise, in the first embodiment of the present invention, the respective X electrodes 21, 24,... are simultaneously driven by one common line. In the first embodiment of the present invention, two Y electrodes 22, 23, ... in one cell are collected to one so as to be connected with the related art Y electrode driving circuit.
  • an address electrode 17 is formed orthogonally to the X electrodes 21 and 24 and the Y electrodes 22 and 23 in the same manner as the related art.
  • a reference numeral 1 which is not described denotes a dielectric layer and a reference numeral 2 denotes a discharge space.
  • Y electrode is divided into two electrodes 22 and 23 having the same size and structure in one cell unlike the related art three-electrode alternating current type PDP shown in Fig. 1 to Fig. 2.
  • the two Y electrodes 22 and 23 are commonly connected so that they are simultaneously driven when a voltage is applied thereto.
  • discharge occurs between the first X electrode 21 and the first Y electrode 22 and at the same time discharge occurs between the second Y electrode 23 and the first X electrode 24.
  • a negative voltage is applied to the respective X electrodes 21 and 24 through a commonly connected driving circuit while a positive voltage is applied to the respective Y electrodes 22 and 23 through a commonly connected driving circuit.
  • wall charges occur in the first X electrode 21 and the first Y electrode 22, thereby causing discharge.
  • discharge also occurs between the second Y electrode 23 and the second X electrode 24. Accordingly, two discharges simultaneously occur in one cell to improve discharge efficiency. This improves whole luminance of the PDP.
  • Fig. 4 is a schematic view of a PDP according to the second embodiment of the present invention.
  • X electrodes 31 and 34 which are scan electrodes are formed at both sides of the upper substrate 10.
  • Y electrodes 32 and 33 which are sustain electrodes are formed between the X electrodes 31 and 34.
  • the Y electrodes 32 and 33 are aligned in parallel by the same width as the distance between each other and are narrower than the distance of the X electrodes 31 and 34.
  • the X electrodes 31 and 34 and the Y electrodes 32 and 33 are formed using bus electrodes only without using transparent electrodes of ITO. That is, in Fig.
  • the X electrodes 20 and 21 and the Y electrodes 22 and 23 are formed using the bus electrodes only without forming an ITO film, power consumption can be remarkably reduced and operational margin is nearly affected by interference between adjacent cells. On the other hand, luminous characteristic is reduced, and the presence of the ITO film is determined depending on application fields and the production cost.
  • the respective X electrodes 31 and 34 are commonly connected by one common line and are simultaneously driven in the same manner as the aforementioned first embodiment.
  • the respective Y electrodes 32 and 33 are also simultaneously driven by another common line.
  • the respective Y electrodes 32 and 33 are divided into two inside of the panel but are commonly connected to the pad or FPC outside the panel. Accordingly, in the same manner as Fig. 3, a circuit used in the related art three-electrode alternating current type PDP can be used as a means and circuit for driving the respective X electrodes 31 and 34 and the Y electrodes 32 and 33.
  • a negative voltage is applied to the respective X electrodes 31 and 34 through a commonly connected driving circuit while a positive voltage is applied to the respective Y electrodes 32 and 33 through a commonly connected driving circuit.
  • discharge occurs between the first X electrode 31 and the first Y electrode 32.
  • discharge also occurs between the second Y electrode 33 and the second X electrode 34.
  • Fig. 5 is a schematic view of a PDP according to the third embodiment of the present invention, in which another three-electrode simultaneous double discharge alternating current type PDP is suggested.
  • X electrodes 41 and 44 which are scan electrodes are formed at both sides of the upper substrate 10.
  • Y electrodes 42 and 43 which are sustain electrodes are formed between the X electrodes 41 and 44.
  • the respective X electrodes 41 and 44 include transparent electrodes 41a and 44a of ITO and bus electrodes 41a and 44b of metal.
  • the respective Y electrodes 42 and 33 include bus electrodes only without transparent electrodes.
  • the respective Y electrodes 42 and 43 are aligned in parallel with the same width as the distance between each other and are narrower than the distance between the X electrodes 41 and 44.
  • FIG. 6 is a schematic view illustrating discharge state of an alternating current type PDP of a three-electrode area discharge suggested in Figs. 3 to 5.
  • Each of rectangular dotted lines of Fig. 6 indicates one cell.
  • X electrode and Y electrode in each cell are aligned in parallel with each other.
  • the respective X electrodes are commonly connected and simultaneously driven by an applying voltage.
  • only the Y electrodes in the same cell are simultaneously driven.
  • Fig. 7 is a schematic view of a PDP according to the fourth embodiment of the present invention.
  • X electrodes 51 and 54 which are scan electrodes are formed on the upper substrate 10 in parallel at regular intervals.
  • Bus electrodes 52 and 53 are formed on a region over the respective X electrodes 51 and 54.
  • Y electrode 55 is formed on the respective X electrodes 51 and 54 orthogonally to the respective X electrodes 51 and 54 at a regular interval from the X electrodes 51 and 54.
  • the respective X electrodes 51 and 54 are narrower than the Y electrode 55.
  • a reference numeral 1 which is not described denotes a dielectric layer and a reference numeral 2 denotes a discharge space.
  • the respective X electrodes 51 and 54 are aligned orthogonally to the Y electrode 55.
  • the respective X electrodes 51 and 54 are divided into two inside of the panel and are commonly connected to one pad or the FPC outside of the panel.
  • the Y electrode acts as an address electrode .
  • the respective X electrodes 51 and 54 are formed of transparent electrodes of ITO and then respective bus electrodes 52 and 53 are formed thereon.
  • the X electrodes may be formed using the bus electrodes only, without forming the ITO electrodes. In this case, the operation of each structure is the same.
  • Fig. 8 is a schematic view illustrating discharge state of an alternating current type PDP of a three-electrode area discharge suggested in Fig. 7. The discharge state will be described below with reference to Fig. 8.
  • Each of rectangular dotted lines of Fig. 8 indicates one cell.
  • X electrode and Y electrode in each cell are aligned in orthogonal to each other. For example, if the respective X electrodes (51 and 54 in Fig. 7) are vertically aligned, the Y electrode (55 in Fig. 7) is horizontally aligned. If a negative voltage is applied to the X electrode and a positive voltage is applied to the Y electrode, (-) charges input from a common line connected to the X electrode are divided into half and then supplied to the X electrode. Accordingly, symmetrical simultaneous double discharges occur between the respective X electrode and the respective Y electrode. As a result, the same simultaneous double discharges as that of the three- electrode alternating current type PDP of Fig.
  • Figs. 9a and 9b are graphs illustrating a charge density difference between the PDP of the present invention and the related art PDP.
  • Fig. 9a shows charge density of the PDP of the present invention
  • Fig. 9b shows charge density of the related art PDP.
  • Figs. 10a and 10b are graphs illustrating an electron density difference between the PDP of the present invention and the related art PDP.
  • Fig. 10a shows electron density of the PDP of the present invention
  • Fig. 10b shows electron density of the related art PDP.
  • the electron density or the charge density occurring in the simultaneous double discharge structure according to the respective embodiments of the present invention is much higher than that of the related art area discharge structure under the same voltage conditions.
  • the density of such particles acts as the source of Xe excited species which generate light
  • the high density is preferred during discharge. Accordingly, the simultaneous double discharge structure of the present invention obtains higher luminance and higher efficiency than those of the related art area discharge structure. Furthermore, repulsion generated by the two Y electrodes in one cell enhances the density and force of the particles.
  • the simultaneous double discharge PDP of the present invention has the following advantages.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

Ce panneau d'affichage à plasma, à deux décharges simultanées, possède des caractéristiques améliorées d'efficacité lumineuse et de luminance, obtenues par modification d'une structure d'électrode, de manière qu'une commande de deux décharges puisse être exécutée dans une cellule. Selon l'invention, plusieurs cellules comprennent des première et seconde électrodes de balayage, alignées de façon parallèle sur un premier substrat, des première et seconde électrodes de support, alignées de façon parallèle entre les première et seconde électrodes de balayage, ainsi qu'une électrode d'adressage alignée, sur un second substrat, de manière orthogonale par rapport aux électrodes de balayage et aux électrodes de support. Les première et seconde électrodes de balayage sont généralement connectées à toutes les électrodes de balayage des cellules du panneau d'affichage. Les première et seconde électrodes de support sont généralement connectées dans les cellules. En conséquence, il s'effectue simultanément une commande de décharge entre la première électrode de balayage et la première électrode de support, et entre la seconde électrode de balayage et la seconde électrode de support.
PCT/KR2000/001224 1999-10-29 2000-10-27 Panneau d'affichage a plasma, a deux decharges simultanees WO2001031674A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019990047640A KR20010039313A (ko) 1999-10-29 1999-10-29 플라즈마 표시 패널
KR1999/47640 1999-10-29

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Publication Number Publication Date
WO2001031674A1 true WO2001031674A1 (fr) 2001-05-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1280125A2 (fr) * 2001-07-24 2003-01-29 Fujitsu Limited Appareil d'affichage à plasma
EP1739711A1 (fr) * 2005-06-30 2007-01-03 LG Electronics Inc. Ecran plasma

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100659081B1 (ko) * 2004-12-06 2006-12-21 삼성에스디아이 주식회사 플라즈마 디스플레이 패널
KR100987372B1 (ko) * 2009-08-25 2010-10-12 김재근 합성수지제 직기용 종광의 종광눈 형성방법

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JPH05151899A (ja) * 1991-11-29 1993-06-18 Fujitsu Ltd プラズマデイスプレイパネル
JPH08212933A (ja) * 1995-02-03 1996-08-20 Fujitsu Ltd 面放電型プラズマディスプレイパネル及びその駆動方法
JPH09120777A (ja) * 1995-10-26 1997-05-06 Hitachi Ltd プラズマディスプレイパネルの電極構造
JPH09129139A (ja) * 1995-11-01 1997-05-16 Oki Electric Ind Co Ltd 交流型プラズマディスプレイパネルおよびその駆動方法
JPH09274859A (ja) * 1996-04-03 1997-10-21 Fujitsu Ltd 面放電型ｐｄｐ

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH05151899A (ja) * 1991-11-29 1993-06-18 Fujitsu Ltd プラズマデイスプレイパネル
JPH08212933A (ja) * 1995-02-03 1996-08-20 Fujitsu Ltd 面放電型プラズマディスプレイパネル及びその駆動方法
JPH09120777A (ja) * 1995-10-26 1997-05-06 Hitachi Ltd プラズマディスプレイパネルの電極構造
JPH09129139A (ja) * 1995-11-01 1997-05-16 Oki Electric Ind Co Ltd 交流型プラズマディスプレイパネルおよびその駆動方法
JPH09274859A (ja) * 1996-04-03 1997-10-21 Fujitsu Ltd 面放電型ｐｄｐ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1280125A2 (fr) * 2001-07-24 2003-01-29 Fujitsu Limited Appareil d'affichage à plasma
EP1280125A3 (fr) * 2001-07-24 2009-01-21 Hitachi Plasma Patent Licensing Co., Ltd. Appareil d'affichage à plasma
EP1739711A1 (fr) * 2005-06-30 2007-01-03 LG Electronics Inc. Ecran plasma
US7812537B2 (en) 2005-06-30 2010-10-12 Lg Electronics Inc. Plasma display panel having center electrode

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KR20010039313A (ko) 2001-05-15
KR20020048984A (ko) 2002-06-24

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