EP0706703B1 - Generateur de tension alternative pour reguler un ecran d'affichage a plasma - Google Patents

Generateur de tension alternative pour reguler un ecran d'affichage a plasma Download PDF

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Publication number
EP0706703B1
EP0706703B1 EP94922870A EP94922870A EP0706703B1 EP 0706703 B1 EP0706703 B1 EP 0706703B1 EP 94922870 A EP94922870 A EP 94922870A EP 94922870 A EP94922870 A EP 94922870A EP 0706703 B1 EP0706703 B1 EP 0706703B1
Authority
EP
European Patent Office
Prior art keywords
voltage
capacitance
switches
switch
inductance
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP94922870A
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German (de)
English (en)
Other versions
EP0706703A1 (fr
Inventor
Gerard Rilly
Gerard Morizot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Publication of EP0706703A1 publication Critical patent/EP0706703A1/fr
Application granted granted Critical
Publication of EP0706703B1 publication Critical patent/EP0706703B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • G09G3/2965—Driving circuits for producing the waveforms applied to the driving electrodes using inductors for energy recovery

Definitions

  • the invention relates to a generator for controlling a Plasma display screen according to the preamble of claim 1.
  • a generator is known from document 92 SID DIGEST 1987 page 92 - to 95.
  • US-A-4 070 663 describes an AC generator for an EL display. This could also be used for a plasma display screen.
  • the invention has for its object the described Modify circuit so that the ignition process for the individual Pixel for the excitation to glow is improved.
  • This Object is achieved by the invention specified in claim 1 solved.
  • Advantageous developments of the invention are in the dependent claims.
  • the well-known generator for line control works with two Voltage values of the voltage on the total capacitance.
  • Switching is made conscious between the periods the two different voltage values for the ignition and deleting another period with a third Voltage value, preferably inserted from zero to thereby the Information of the respective pixel or pixel in the plasma to delete or neutralize. Between two each different, successive voltage values a transition in the form of a sine half-wave. By the period with the third voltage value will be clear or so-called reset of the pixel significantly improved.
  • the two different sized positive and negative voltage values allow optimization of the excitation of the pixel. You can the addressing of rows and columns with relatively low ones Tensions occur that are independent of each other Control range of the plasma are precisely adjusted. The additional Addressing circuits can then get optimal voltage values.
  • the total capacity is preferably cyclically via one third switch turned on so that the voltage on the capacity between periods with a positive and a negative voltage a period with the voltage zero value having.
  • the connection of the capacitance is preferably via the Inductance and the second switch to an operating voltage and connected to earth via the third switch. It is preferably the second operating voltage is equal to half the first operating voltage.
  • An expanded solution with four transitions for both polarities is that with the first end of the inductor connected connection of the capacitance via two parallel switches with opposite direction of passage with earth, over a first switch with a positive operating voltage, via a second switch with an equally large second operating voltage connected and the second end of the inductor via two parallel switches with opposite forward direction with half the first operating voltage and two more Switch in the opposite direction with the half second operating voltage are connected.
  • the switch routes with different pass directions preferably in each case through the series connection of a switch and a diode.
  • Cp means the total plasma or panel capacity of a plasma screen, only the circuit elements are shown for the transfer of Cp between O and a positive one Voltage, not the other circuit elements for the corresponding Transfer between O and the negative voltage.
  • an additional voltage Uza is added via stage 1, which for serves the addressing of an entire line and thereby one selected line selected.
  • For the addressing process given increased tension on each line and additionally a voltage for the column addressing that is on the opposite side of Cp. Through this Row addressing and column addressing each become one pixel or pixel addressed.
  • L is the inductance used for energy recovery, in which the stored in Cp in the form of the voltage UCp Energy is recovered in the form of electricity.
  • FIG. 2 shows the time course of the voltage UCp across the capacitance Cp for a period.
  • the undressed show Lines at T1, T2, T3, during which periods the switches are controlled. It can be seen that the switch T2 in each case during the transitions, ie the reloading of Cp between O and E + is conductive.
  • T1 and T3 cause longer ones Connection of the connection a to the voltage E + during the Ignition phase or to earth during the period with the voltage value zero.
  • Fig. 1 is only for one polarity shown, i.e. only the connection to E + and earth.
  • FIG. 3 shows the expansion of the circuit according to FIG. 2 for both polarities and three voltage values according to FIG. 2.
  • E3 -V1 / 2
  • E4 + V2 / 2.
  • the circuit according to FIG. 3 essentially works on the principle of the circuit according to FIG. 1, the following list of concordances being used for a better understanding: Fig. 4 Fig. 1 T4-, D4- T2, D1 T4, D4 T2, D1 T6, D6 T2, D1 T6-, D6- T2, D1 T5-, D5- T3, D3 T5, D5 T3, D3 T1 T1 T2
  • Cp is the total capacity again.
  • the actual flow of energy takes place via T1, T2.
  • the frequency at which the transhipment takes place is about 30 to 100 kHz.
  • Fig. 5 shows an alternative solution to Fig. 3.
  • the current for the The ignition phase i.e. the excitation to glow, essentially flows via the transistors TH and TL shown as switches.
  • a particularly large plasma screen is necessary because of the higher currents also split into several current paths sensible.
  • the transfer of Cp takes place due to the structure of the Switches T1, T2; T3, T1.
  • the average voltage of Cp is only zero if the voltages V2 and V1 are symmetrical, i.e. in magnitude are the same.
  • Fig. 7 shows a variant for a plasma screen with a large Dimension.
  • the majority of the switches TH and TL for the screen transmitting energy is in two parts divided, each of which has a corresponding maintenance circuit THB-TLB is assigned.
  • This circuit shows the Possibility to use a common resonance circuit.
  • the energy present at the start of the resonance is: 1 2nd C. E 2nd 2nd .
  • the delay ⁇ is used for a suitable compensation of the Losses set so that Vp is accurate at the end of the quarter voltage E reached.

Landscapes

  • 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)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Claims (5)

  1. Générateur de tension alternative pour la commande d'adressage des lignes d'un écran d'affichage à plasma, dans lequel une connexion (a) d'une capacité d'écran (Cp) peut être connectée cycliquement et consécutivement à différentes tensions de service via un commutateur et dans lequel une inductance (L) servant à la récupération d'énergie est présente sur le trajet du courant de renversement pour la capacité (Cp), caractérisé en ce que
    la capacité (Cp) peut être connectée à différentes tensions de service (V1, V2, E3+, E4+) via des commutateurs (T1-T6, T4- - T6-) à la suite, de sorte que la tension (UCp) au niveau de la capacité (Cp) présente de façon cyclique trois valeurs de tension différentes et consécutives (V1, V2, 0) séparées par des transitions,
    et la connexion (a) de la capacité d'écran (Cp) reliée à la première extrémité de l'inductance (L)est reliée à la terre via deux commutateurs parallèles (T5, T5-) à sens de conduction opposé, à une tension de service positive (V2) via un commutateur (T1) et à une deuxième tension de service (V1) via un second commutateur (T2).
  2. Générateur selon la revendication 1, caractérisé en ce que la seconde extrémité de l'inductance (L) est reliée à la moitié de la première tension de service (E4+) via deux commutateurs parallèles (T4, T4-) à sens de conduction opposé, ainsi qu'à la moitié de la seconde tension de service (E3+) via deux commutateurs parallèles supplémentaires (T6, T6-) à sens de conduction opposé.
  3. Générateur selon la revendication 1 ou 2, caractérisé en ce que la tension (UCp) au niveau de la capacité (Cp) présente une période de valeur de tension nulle entre une période à tension positive (V2) et une période à tension négative (V1).
  4. Générateur selon la revendication 3, caractérisé en ce que la tension positive (V2) et la tension négative (V1) sont de grandeurs différentes.
  5. Générateur selon la revendication 2, 3 ou 4 caractérisé en ce qu'au moins un commutateur (T5, T5-), connecté en parallèle à la capacité d'écran (Cp, Cpanel), ne peut être déconnecté qu'après connexion d'un courant (12) de chargement d'inductance (L) via les commutateurs (T4, T4-, T6, T6-) à la seconde extrémité de l'inductance (L) de sorte que les pertes seront compensées pendant la résonance.
EP94922870A 1993-07-02 1994-06-24 Generateur de tension alternative pour reguler un ecran d'affichage a plasma Expired - Lifetime EP0706703B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4321945 1993-07-02
DE4321945A DE4321945A1 (de) 1993-07-02 1993-07-02 Wechselspannungsgenerator zur Steuerung eines Plasma-Wiedergabeschirms
PCT/EP1994/002057 WO1995001627A1 (fr) 1993-07-02 1994-06-24 Generateur de tension alternative pour reguler un ecran d'affichage a plasma

Publications (2)

Publication Number Publication Date
EP0706703A1 EP0706703A1 (fr) 1996-04-17
EP0706703B1 true EP0706703B1 (fr) 1998-09-02

Family

ID=6491729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94922870A Expired - Lifetime EP0706703B1 (fr) 1993-07-02 1994-06-24 Generateur de tension alternative pour reguler un ecran d'affichage a plasma

Country Status (8)

Country Link
US (1) US5808420A (fr)
EP (1) EP0706703B1 (fr)
JP (1) JP3423316B2 (fr)
KR (1) KR100333777B1 (fr)
CN (1) CN1101039C (fr)
DE (2) DE4321945A1 (fr)
ES (1) ES2123806T3 (fr)
WO (1) WO1995001627A1 (fr)

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DE19737662A1 (de) * 1997-08-29 1999-03-04 Thomson Brandt Gmbh Wechselspannungsgenerator zur Steuerung eines Plasma-Wiedergabeschirms
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US6963174B2 (en) * 2001-08-06 2005-11-08 Samsung Sdi Co., Ltd. Apparatus and method for driving a plasma display panel
KR100463185B1 (ko) * 2001-10-15 2004-12-23 삼성에스디아이 주식회사 플라즈마 디스플레이 패널, 그의 구동 장치 및 그의 구동방법
KR100477985B1 (ko) * 2001-10-29 2005-03-23 삼성에스디아이 주식회사 플라즈마 디스플레이 패널, 그의 구동 장치 및 그의 구동방법
KR100425314B1 (ko) * 2001-12-11 2004-03-30 삼성전자주식회사 전압 스트레스를 개선한 고효율 플라즈마 디스플레이 패널구동 장치 및 방법
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DE10200828A1 (de) * 2002-01-11 2003-07-24 Philips Intellectual Property Schaltungsanordnung für die Wechselspannungsversorgung eines Plasma-Display-Panels
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KR100489274B1 (ko) * 2002-10-10 2005-05-17 엘지전자 주식회사 플라즈마 디스플레이 패널의 구동장치
EP1548694A4 (fr) * 2002-10-02 2008-03-05 Fujitsu Hitachi Plasma Display Circuit de commande et procede de commande
JP2004133406A (ja) * 2002-10-11 2004-04-30 Samsung Sdi Co Ltd プラズマディスプレイパネルの駆動装置及び駆動方法
KR100502906B1 (ko) * 2002-10-11 2005-07-21 삼성에스디아이 주식회사 플라즈마 디스플레이 패널의 구동 방법
KR100458574B1 (ko) * 2002-11-13 2004-12-03 삼성에스디아이 주식회사 플라즈마 디스플레이 패널의 구동 장치 및 방법
KR20040034274A (ko) * 2002-10-21 2004-04-28 주식회사 유피디 플라즈마 디스플레이 패널의 구동장치
KR100484175B1 (ko) * 2002-11-08 2005-04-18 삼성전자주식회사 고효율 플라즈마 디스플레이 패널 구동 장치 및 방법
KR100458585B1 (ko) * 2003-01-22 2004-12-03 삼성에스디아이 주식회사 플라즈마 디스플레이 패널의 구동 장치 및 그 구동 방법
EP1469445A3 (fr) * 2003-04-16 2009-03-04 Lg Electronics Inc. Dispositif pour la récupération d'énergie et méthode de commande d'un panneau d'affichage à plasma
FR2858727A1 (fr) * 2003-08-05 2005-02-11 Thomson Plasma Dispositif de generation d'une rampe de tension dans un circuit de commande pour ecran plasma
KR100577763B1 (ko) 2004-09-08 2006-05-10 엘지전자 주식회사 플라즈마 디스플레이 패널의 구동장치
KR100612507B1 (ko) 2004-09-07 2006-08-14 엘지전자 주식회사 플라즈마 디스플레이 패널 구동장치
KR100578854B1 (ko) * 2004-08-18 2006-05-11 삼성에스디아이 주식회사 플라즈마 표시 장치와 그 구동 방법
KR100612508B1 (ko) * 2004-09-07 2006-08-14 엘지전자 주식회사 플라즈마 표시 패널의 구동 장치
CN100411082C (zh) * 2004-09-10 2008-08-13 南京Lg同创彩色显示系统有限责任公司 等离子显示器
CN100585676C (zh) * 2005-01-31 2010-01-27 株式会社日立等离子体专利许可 充放电装置、等离子显示面板和充放电的方法
KR100648685B1 (ko) * 2005-10-11 2006-11-23 삼성에스디아이 주식회사 플라즈마 표시 장치 및 그 구동 장치와 구동 방법
TWI299153B (en) * 2005-10-24 2008-07-21 Chunghwa Picture Tubes Ltd Circuit and method for resetting plasma display panel
WO2007094227A1 (fr) * 2006-02-13 2007-08-23 Matsushita Electric Industrial Co., Ltd. circuit d'entraînement de panneau d'affichage plasma et dispositif d'affichage plasma
CN101030350B (zh) * 2007-04-04 2011-04-20 咸阳华清设备科技有限公司 完全谐振式pdp能量恢复电路
JP2010249981A (ja) * 2009-04-14 2010-11-04 Toyo Univ 容量性負荷駆動回路および表示装置
GB201507474D0 (en) 2015-04-30 2015-06-17 Shimadzu Corp A circuit for generating a voltage waveform at an output node
CN108538240B (zh) * 2018-05-29 2020-03-10 京东方科技集团股份有限公司 一种像素驱动电路及其驱动方法、显示装置

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Also Published As

Publication number Publication date
JP3423316B2 (ja) 2003-07-07
EP0706703A1 (fr) 1996-04-17
KR960703489A (ko) 1996-08-17
CN1125993A (zh) 1996-07-03
US5808420A (en) 1998-09-15
KR100333777B1 (ko) 2003-01-09
WO1995001627A1 (fr) 1995-01-12
DE4321945A1 (de) 1995-01-12
JPH08512140A (ja) 1996-12-17
CN1101039C (zh) 2003-02-05
ES2123806T3 (es) 1999-01-16
DE59406845D1 (de) 1998-10-08

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