TW200742233A - Negative step-up charge pump circuit, LCD driver IC, and liquid crystal display device - Google Patents

Negative step-up charge pump circuit, LCD driver IC, and liquid crystal display device

Info

Publication number
TW200742233A
TW200742233A TW096109511A TW96109511A TW200742233A TW 200742233 A TW200742233 A TW 200742233A TW 096109511 A TW096109511 A TW 096109511A TW 96109511 A TW96109511 A TW 96109511A TW 200742233 A TW200742233 A TW 200742233A
Authority
TW
Taiwan
Prior art keywords
charge pump
pump circuit
liquid crystal
display device
crystal display
Prior art date
Application number
TW096109511A
Other languages
English (en)
Inventor
Haruo Taguchi
Hidekazu Kojima
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Publication of TW200742233A publication Critical patent/TW200742233A/zh

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
    • G09G3/3614—Control of polarity reversal in general
    • 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
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/145—Applications of charge pumps; Boosted voltage circuits; Clamp circuits therefor
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H02M3/073—Charge pumps of the Schenkel-type
    • 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
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Semiconductor Integrated Circuits (AREA)
TW096109511A 2006-03-20 2007-03-20 Negative step-up charge pump circuit, LCD driver IC, and liquid crystal display device TW200742233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006077172A JP4901252B2 (ja) 2006-03-20 2006-03-20 負昇圧チャージポンプ回路、ｌｃｄドライバｉｃ、液晶表示装置

Publications (1)

Publication Number Publication Date
TW200742233A true TW200742233A (en) 2007-11-01

Family

ID=38517286

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096109511A TW200742233A (en) 2006-03-20 2007-03-20 Negative step-up charge pump circuit, LCD driver IC, and liquid crystal display device

Country Status (4)

Country Link
US (1) US8085257B2 (zh)
JP (1) JP4901252B2 (zh)
CN (1) CN100505490C (zh)
TW (1) TW200742233A (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8115597B1 (en) * 2007-03-07 2012-02-14 Impinj, Inc. RFID tags with synchronous power rectifier
US9865337B1 (en) * 2017-03-22 2018-01-09 Qualcomm Incorporated Write data path to reduce charge leakage of negative boost
CN109842294B (zh) * 2017-11-24 2020-05-15 力旺电子股份有限公司 四相电荷泵电路

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168174A (en) * 1991-07-12 1992-12-01 Texas Instruments Incorporated Negative-voltage charge pump with feedback control
US5532915A (en) * 1994-03-23 1996-07-02 Intel Corporation Method and apparatus for providing an ultra low power regulated negative charge pump
JP2718375B2 (ja) * 1994-09-30 1998-02-25 日本電気株式会社 チャージポンプ回路
AU5165798A (en) * 1996-11-05 1998-05-29 Aplus Flash Technology, Inc. Positive/negative high voltage charge pump system
US5841703A (en) * 1996-12-31 1998-11-24 Intel Corporation Method and apparatus for removal of VT drop in the output diode of charge pumps
JP3580693B2 (ja) * 1998-03-19 2004-10-27 シャープ株式会社 チャージ・ポンプ回路
US6177830B1 (en) * 1999-03-05 2001-01-23 Xilinx, Inc High voltage charge pump using standard sub 0.35 micron CMOS process
US6359947B1 (en) * 1999-08-31 2002-03-19 Intel Corporation Split clock buffers for a negative charge pump
TWI238375B (en) * 2000-05-31 2005-08-21 Toshiba Corp Pumping circuit and flat panel display device
JP3524845B2 (ja) * 2000-06-26 2004-05-10 三洋電機株式会社 チャージポンプ回路
JP2002209375A (ja) 2001-01-10 2002-07-26 Seiko Epson Corp 電圧変換回路
JP3541826B2 (ja) * 2001-09-21 2004-07-14 セイコーエプソン株式会社 電源回路及びその制御方法
JP2003197793A (ja) 2001-12-28 2003-07-11 Sanyo Electric Co Ltd チャージポンプ装置
JP2005176570A (ja) * 2003-12-15 2005-06-30 Seiko Epson Corp Ｄｃ−ｄｃコンバータ
US20050195149A1 (en) 2004-03-04 2005-09-08 Satoru Ito Common voltage generation circuit, power supply circuit, display driver, and common voltage generation method
JP4543964B2 (ja) * 2004-03-04 2010-09-15 セイコーエプソン株式会社 コモン電圧生成回路、電源回路、表示ドライバ及び表示装置
JP2006014537A (ja) * 2004-06-29 2006-01-12 Sanyo Electric Co Ltd 昇降圧回路
JP2007259519A (ja) * 2006-03-20 2007-10-04 Rohm Co Ltd チャージポンプ回路、ｌｃｄドライバｉｃ、液晶表示装置

Also Published As

Publication number Publication date
CN101043179A (zh) 2007-09-26
JP2007259520A (ja) 2007-10-04
JP4901252B2 (ja) 2012-03-21
CN100505490C (zh) 2009-06-24
US20070216673A1 (en) 2007-09-20
US8085257B2 (en) 2011-12-27

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