HK1024572A1 - Power supply circuit for liquid crystal display. - Google Patents

Power supply circuit for liquid crystal display.

Info

Publication number
HK1024572A1
HK1024572A1 HK00103649A HK00103649A HK1024572A1 HK 1024572 A1 HK1024572 A1 HK 1024572A1 HK 00103649 A HK00103649 A HK 00103649A HK 00103649 A HK00103649 A HK 00103649A HK 1024572 A1 HK1024572 A1 HK 1024572A1
Authority
HK
Hong Kong
Prior art keywords
power supply
liquid crystal
crystal display
supply circuit
circuit
Prior art date
Application number
HK00103649A
Other languages
English (en)
Inventor
Sadashi Shimoda
Hiroshi Mukainakano
Original Assignee
Seiko Instr Inc
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 Seiko Instr Inc filed Critical Seiko Instr Inc
Publication of HK1024572A1 publication Critical patent/HK1024572A1/xx

Links

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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3625—Control of matrices with row and column drivers using a passive matrix using active addressing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
HK00103649A 1998-07-27 2000-06-16 Power supply circuit for liquid crystal display. HK1024572A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10211221A JP3016143B2 (ja) 1998-07-27 1998-07-27 液晶用電源回路

Publications (1)

Publication Number Publication Date
HK1024572A1 true HK1024572A1 (en) 2000-10-13

Family

ID=16602304

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00103649A HK1024572A1 (en) 1998-07-27 2000-06-16 Power supply circuit for liquid crystal display.

Country Status (6)

Country Link
US (1) US6369809B1 (xx)
JP (1) JP3016143B2 (xx)
KR (1) KR20000012003A (xx)
CN (2) CN100477463C (xx)
HK (1) HK1024572A1 (xx)
TW (1) TW465167B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4743570B2 (ja) * 2001-04-10 2011-08-10 ルネサスエレクトロニクス株式会社 電源回路を内蔵した半導体集積回路および液晶表示制御装置並びに携帯用電子機器
KR100472360B1 (ko) * 2001-12-08 2005-03-08 엘지.필립스 엘시디 주식회사 액정표시장치 및 그 구동방법
KR100463601B1 (ko) * 2001-12-24 2004-12-29 엘지.필립스 엘시디 주식회사 액정표시소자의 공통 전압 발생 회로
KR100886234B1 (ko) * 2002-09-05 2009-02-27 엘지디스플레이 주식회사 액정표시장치
US6781352B2 (en) * 2002-12-16 2004-08-24 International Rectifer Corporation One cycle control continuous conduction mode PFC boost converter integrated circuit with integrated power switch and boost converter
JP4352937B2 (ja) * 2004-03-03 2009-10-28 セイコーエプソン株式会社 電源回路、電気光学装置および電子機器
CN100394345C (zh) * 2004-03-03 2008-06-11 晶豪科技股份有限公司 电压产生器以及产生稳定电压的方法
JP4895694B2 (ja) * 2006-06-08 2012-03-14 ルネサスエレクトロニクス株式会社 電源回路
CN101127483B (zh) * 2006-08-18 2010-06-16 盛群半导体股份有限公司 应用于场发射显示器的电源供应器
JP4968904B2 (ja) * 2006-12-08 2012-07-04 ルネサスエレクトロニクス株式会社 表示パネル駆動装置、表示パネル駆動方法および表示装置
CN101526678B (zh) * 2008-03-07 2011-12-21 群康科技(深圳)有限公司 电源电路和采用该电源电路的液晶显示装置
TWI486755B (zh) * 2012-06-22 2015-06-01 Askey Computer Corp 電源供應模式切換電路及方法
KR102012022B1 (ko) 2013-05-22 2019-08-20 삼성디스플레이 주식회사 표시 장치의 전원 공급 장치
KR101606087B1 (ko) * 2015-03-31 2016-03-24 장진원 커버 홀 가공방법 및 홀 가공장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3852610T2 (de) * 1987-10-26 1995-05-18 Canon Kk Treiberschaltung.
US5583528A (en) * 1990-07-13 1996-12-10 Citizen Watch Co., Ltd. Electrooptical display device
JPH09101496A (ja) * 1995-10-04 1997-04-15 Sharp Corp 表示装置駆動用電圧発生装置
JP3552500B2 (ja) * 1997-11-12 2004-08-11 セイコーエプソン株式会社 論理振幅レベル変換回路，液晶装置及び電子機器
JPH11252903A (ja) * 1998-03-03 1999-09-17 Seiko Instruments Inc 電源回路

Also Published As

Publication number Publication date
CN100477463C (zh) 2009-04-08
JP3016143B2 (ja) 2000-03-06
KR20000012003A (ko) 2000-02-25
JP2000047168A (ja) 2000-02-18
CN1197228C (zh) 2005-04-13
TW465167B (en) 2001-11-21
CN1243357A (zh) 2000-02-02
US6369809B1 (en) 2002-04-09
CN1655432A (zh) 2005-08-17

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20130727