TWI345755B - Method of switching a high-side switch of a pdp scan circuit in a zero-voltage-switching mode - Google Patents

Method of switching a high-side switch of a pdp scan circuit in a zero-voltage-switching mode Download PDF

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Publication number
TWI345755B
TWI345755B TW095118266A TW95118266A TWI345755B TW I345755 B TWI345755 B TW I345755B TW 095118266 A TW095118266 A TW 095118266A TW 95118266 A TW95118266 A TW 95118266A TW I345755 B TWI345755 B TW I345755B
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TW
Taiwan
Prior art keywords
voltage
node
side switch
electrode
diode
Prior art date
Application number
TW095118266A
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English (en)
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TW200701156A (en
Inventor
Bi Hsien Chen
yi min Huang
Original Assignee
Chunghwa Picture Tubes 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.)
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Publication date
Application filed by Chunghwa Picture Tubes Ltd filed Critical Chunghwa Picture Tubes Ltd
Publication of TW200701156A publication Critical patent/TW200701156A/zh
Application granted granted Critical
Publication of TWI345755B publication Critical patent/TWI345755B/zh

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/13—Modifications for switching at zero crossing
    • H03K17/133—Modifications for switching at zero crossing in field-effect transistor switches
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
    • H03K17/162—Modifications for eliminating interference voltages or currents in field-effect transistor switches without feedback from the output circuit to the control circuit
    • H03K17/163—Soft switching

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)

Description

1345755 九、發明說明： 【發明所屬之技術領域】 本發明係提供一種用於電漿顯示器的掃描電路之切換方法，尤 指一種用於降低電漿顯示器之切換雜訊的掃描電路之柔性切換方 法。 【先前技術】 近年來，電漿顯示器因為有著高亮度、高發光效率以及寬廣的 可視角度等特性而活躍地發展著。電漿顯示器是一種藉由氣體放 電產生的電聚雜;f釋放產生料光，&料光激料光材料來 產生影像的平面顯示器。 電_示器包含兩片平行的玻璃基板，並在兩片玻璃基板間封 入氣體混合物。多數第—維持電極，稱為X電極，以及多數第二 維持電極’稱為γ電極，其平行設置於前玻璃基板上。多數定址 1：極》又置於後玻璃基板上。於該些電極上施加電壓以對氣體混合 物放電射田電路電性連接於γ電極和驅動電路用以將資料載 入電漿員示器中。亦即，驅動電路係藉由掃描電路而電性連接至Y 電極。 為了降低掃描電路的切換耗損及切換雜訊，電聚顯示器的掃抬 電路中的高端_應該於零電壓切換模式巾或是接近於零電壓切 換模式的情況下切換。 /55 【發明内容】 本發明係提供—魏使—電漿辭器掃描電路的—高端開關 一零，切換模式中切換之方法。該掃描電路包含該高端開關、 低端開關:-第—二極體和一第二二極體。該高端開關電性連 接於一第-節點及-γ 。該第—二極體包含有—陰極，電性 連接於該第1點’和—陽極，電性連接於該Υ電極。該低端開 關電性連接於該γ電極及—第二節點，而該第二二極體包含有一 陰極’電性連接於該γ電極，和一陽極，電性連接於該第二節點。 該切換方法首先關_高端_並該低端關，用以提供一 第-電壓於該Υ電極及該第二節點，織當該丫電極及該第二節 點之電壓等於該第1壓時’關閉該低端開關。然後改變該第二 節點之電壓至一第二電壓，並將該Υ電極之電壓維持在該第一電 壓’其中該第-電壓及該第二電壓之電壓差值大於該第—節點之 電壓與該第二電壓之電壓差值，因而能啟動該第一二極體，而能 將該第一節點之電壓提供給該Υ電極。最後，於零電壓切換模式 中開啟該高端開關。 【實施方式】 本發明提供一種於零電壓切換模式下之切換電漿顯示器的掃 描電路中之高端開關的切換方法。為能夠達到在零電壓切換模式 下切換，必須將在電漿顯示器的掃描電路中之高端開關導通之 前，先將高端開關的寄生二極體或設計中既有的二極體先行導

Claims (1)

1345755 十 申請專利範圚·· 99年】2月〗3日修正替換頁 種毛漿顯不器掃插電路 換之方法，該掃描電路包人二在零電壓切換模式中切 哪r田笔路包含該_開關 點及一 Y電極’·-第一二極體’其包 适接於-第-節 於該第-節點，和一陽極，電性連接於該心，生連接 闕，電性連接於該γ電極及—第二節點# ，—低端開 包含有—陰極，電性連接於該Υ電極，和―陽^〜—極體，其 s亥第二節點；該切換方法包含有： 5电性逹接於 關閉該高端_並開啟該低端關，以提供— 電極及該第二節點； 第笔壓於該Υ 當該Υ電極及該第二節點之電群_第 端開關； 罨之符，關閉該低 改變該第二節點之_至_第二賴，並_ 之 維持在該第-電壓，其中該第-電壓及該第二=電堡 差值大於該第-節點之電壓與該第二電壓严堅之電壓 而能導通該第一二極體，而能將該第一-^=: 該Υ電極；以及 电供給 於:第一二極體導通後，於零電影刀換模式中開啟該高端開 2·如請求項1之方法’其中該第-二極體及該第 個寄生二極體 、極體為複數 11 1345755 _ -· 99年12月13日修正替換頁 ' 3.如請求項1之方法，其中該高端開關及該低端開關為複數個電 • 晶體。 • 4.如請求項1之方法，其中該高端開關及該低端開關為複數個雙 載子接面電晶體。 5.如請求項1之方法，其中該高端開關及該低端開關為複數個金 氧半導體場效電晶體。 十一、圖式： 12
TW095118266A 2005-06-21 2006-05-23 Method of switching a high-side switch of a pdp scan circuit in a zero-voltage-switching mode TWI345755B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59529705P 2005-06-21 2005-06-21

Publications (2)

Publication Number Publication Date
TW200701156A TW200701156A (en) 2007-01-01
TWI345755B true TWI345755B (en) 2011-07-21

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Country Status (3)

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US (1) US7477214B2 (zh)
CN (1) CN100485753C (zh)
TW (1) TWI345755B (zh)

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US7075239B2 (en) * 2000-03-14 2006-07-11 Lg Electronics Inc. Method and apparatus for driving plasma display panel using selective write and selective erase
WO2001088893A1 (en) * 2000-05-16 2001-11-22 Koninklijke Philips Electronics N.V. A driver circuit with energy recovery for a flat panel display
KR20030003564A (ko) * 2001-07-03 2003-01-10 주식회사 유피디 교류형 플라즈마 디스플레이 패널의 유지 구동 장치의에너지 회수 회로
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Also Published As

Publication number Publication date
TW200701156A (en) 2007-01-01
CN100485753C (zh) 2009-05-06
US20060284798A1 (en) 2006-12-21
CN1885383A (zh) 2006-12-27
US7477214B2 (en) 2009-01-13

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