WO1998028731A3 - Liquid crystal display signal driver system and method - Google Patents

Liquid crystal display signal driver system and method Download PDF

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Publication number
WO1998028731A3
WO1998028731A3 PCT/US1997/023768 US9723768W WO9828731A3 WO 1998028731 A3 WO1998028731 A3 WO 1998028731A3 US 9723768 W US9723768 W US 9723768W WO 9828731 A3 WO9828731 A3 WO 9828731A3
Authority
WO
WIPO (PCT)
Prior art keywords
utilized
decoder
circuit
signal driver
improved
Prior art date
Application number
PCT/US1997/023768
Other languages
French (fr)
Other versions
WO1998028731A2 (en
Inventor
Stephen Bily
Christopher A Ludden
Original Assignee
Cirrus Logic 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 Cirrus Logic Inc filed Critical Cirrus Logic Inc
Publication of WO1998028731A2 publication Critical patent/WO1998028731A2/en
Publication of WO1998028731A3 publication Critical patent/WO1998028731A3/en

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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • 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
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/023—Power management, e.g. power saving using energy recovery or conservation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

An LCD signal driver system and circuit are provided. Current sharing may be utilized both at a system level and within the signal driver circuit in order to reduce power consumption. The system and circuit permit the use of a selectable data bus width, for example a single width or double width mode. The decoder architecture utilized allows multiplexing of two channels and eliminates the need for high voltage and low voltage circuitry for each column driver output. The outputs of the driver lines may be precharged to improve power usage and voltage transient characteristics. An improved level shifting circuit having outputs of varying voltage ranges may also be utilized. A decoder architecture is utilized in which the number of decoder cells per channel may be reduced by a factor of two. Improved data gating and feedback gating are also provided through the use of an improved decoder cell. The decoder cell may operate over a wide voltage range and may utilize an inherent level shifting and latch/reset function.
PCT/US1997/023768 1996-12-20 1997-12-22 Liquid crystal display signal driver system and method WO1998028731A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77243996A 1996-12-20 1996-12-20
US08/772,439 1996-12-20

Publications (2)

Publication Number Publication Date
WO1998028731A2 WO1998028731A2 (en) 1998-07-02
WO1998028731A3 true WO1998028731A3 (en) 1998-10-22

Family

ID=25095069

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/023768 WO1998028731A2 (en) 1996-12-20 1997-12-22 Liquid crystal display signal driver system and method

Country Status (1)

Country Link
WO (1) WO1998028731A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW521240B (en) 1998-12-10 2003-02-21 Sanyo Electric Co Liquid crystal driving integrated circuit
JP3573984B2 (en) 1998-12-15 2004-10-06 三洋電機株式会社 LCD drive integrated circuit
TW461180B (en) * 1998-12-21 2001-10-21 Sony Corp Digital/analog converter circuit, level shift circuit, shift register utilizing level shift circuit, sampling latch circuit, latch circuit and liquid crystal display device incorporating the same
DE50108044D1 (en) * 2000-02-24 2005-12-22 Aeg Ges Moderne Inf Sys Mbh LCD pixel matrix element and graphics-capable LCD display panel having a plurality of such LCD pixel matrix elements
JP3832627B2 (en) * 2000-08-10 2006-10-11 シャープ株式会社 Signal line driving circuit, image display device, and portable device
DE10121177A1 (en) 2001-04-30 2002-11-14 Aeg Ges Moderne Inf Sys Mbh LCD cell
KR100815897B1 (en) 2001-10-13 2008-03-21 엘지.필립스 엘시디 주식회사 Mehtod and apparatus for driving data of liquid crystal display
KR100815898B1 (en) 2001-10-13 2008-03-21 엘지.필립스 엘시디 주식회사 Mehtod and apparatus for driving data of liquid crystal display
US7336268B1 (en) * 2002-10-30 2008-02-26 National Semiconductor Corporation Point-to-point display system having configurable connections
KR20050102385A (en) * 2004-04-22 2005-10-26 엘지.필립스 엘시디 주식회사 Electro-luminescence display apparatus
KR100927790B1 (en) 2008-10-28 2009-11-20 매그나칩 반도체 유한회사 Multi functional integrated circuit and source driver having the same
TWI395127B (en) * 2009-09-29 2013-05-01 Mstar Semiconductor Inc Capacitive sensing apparatus and method applied to touch screen
KR101050693B1 (en) * 2010-01-19 2011-07-20 주식회사 실리콘웍스 Gamma voltage output circuit of source driver circuit
US9927891B2 (en) 2012-03-29 2018-03-27 Synaptics Incorporated System and method for reducing transmitter power consumption
CN110827741B (en) * 2019-11-19 2023-04-18 京东方科技集团股份有限公司 Output buffer circuit, drive circuit and display device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391655A2 (en) * 1989-04-04 1990-10-10 Sharp Kabushiki Kaisha A drive device for driving a matrix-type LCD apparatus
EP0457329A2 (en) * 1990-05-16 1991-11-21 Nippon Telegraph And Telephone Corporation Liquid crystal display device and driving method therefor
US5389872A (en) * 1993-04-21 1995-02-14 Medtronic, Inc. Signal processing system and method of reducing switch error attributable to switch impedances
JPH0792937A (en) * 1993-07-29 1995-04-07 Hitachi Ltd Liquid crystal driving method and liquid crystal display device
WO1995011506A1 (en) * 1993-10-18 1995-04-27 Crystal Semiconductor Corporation Signal driver circuit for liquid crystal displays
GB2285164A (en) * 1993-12-22 1995-06-28 Seiko Epson Corp Power supply for liquid crystal display
EP0663697A1 (en) * 1993-07-26 1995-07-19 Seiko Epson Corporation Thin film semiconductor device, its manufacture, and display system
WO1995019658A1 (en) * 1994-01-18 1995-07-20 Vivid Semiconductor, Inc Integrated circuit operating from different power supplies
EP0678848A1 (en) * 1994-04-22 1995-10-25 Sony Corporation Active matrix display device with precharging circuit and its driving method
EP0707306A2 (en) * 1994-10-14 1996-04-17 Sharp Kabushiki Kaisha Driving circuit with grey levels for a display apparatus and liquid crystal display apparatus using the same
TW287275B (en) * 1995-06-07 1996-10-01 Ibm Latched row decoder for a random access memory
US5640174A (en) * 1993-07-29 1997-06-17 Hitachi, Ltd. Method of driving an active matrix liquid crystal display panel with asymmetric signals

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391655A2 (en) * 1989-04-04 1990-10-10 Sharp Kabushiki Kaisha A drive device for driving a matrix-type LCD apparatus
EP0457329A2 (en) * 1990-05-16 1991-11-21 Nippon Telegraph And Telephone Corporation Liquid crystal display device and driving method therefor
US5389872A (en) * 1993-04-21 1995-02-14 Medtronic, Inc. Signal processing system and method of reducing switch error attributable to switch impedances
EP0663697A1 (en) * 1993-07-26 1995-07-19 Seiko Epson Corporation Thin film semiconductor device, its manufacture, and display system
JPH0792937A (en) * 1993-07-29 1995-04-07 Hitachi Ltd Liquid crystal driving method and liquid crystal display device
US5640174A (en) * 1993-07-29 1997-06-17 Hitachi, Ltd. Method of driving an active matrix liquid crystal display panel with asymmetric signals
WO1995011506A1 (en) * 1993-10-18 1995-04-27 Crystal Semiconductor Corporation Signal driver circuit for liquid crystal displays
GB2285164A (en) * 1993-12-22 1995-06-28 Seiko Epson Corp Power supply for liquid crystal display
WO1995019658A1 (en) * 1994-01-18 1995-07-20 Vivid Semiconductor, Inc Integrated circuit operating from different power supplies
EP0678848A1 (en) * 1994-04-22 1995-10-25 Sony Corporation Active matrix display device with precharging circuit and its driving method
EP0707306A2 (en) * 1994-10-14 1996-04-17 Sharp Kabushiki Kaisha Driving circuit with grey levels for a display apparatus and liquid crystal display apparatus using the same
TW287275B (en) * 1995-06-07 1996-10-01 Ibm Latched row decoder for a random access memory
US5615164A (en) * 1995-06-07 1997-03-25 International Business Machines Corporation Latched row decoder for a random access memory

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
FURUHASHI T ET AL: "A 64-GRAY-SCALE DIGITAL SIGNAL DRIVER FOR COLOR TFT-LCDS", SID INTERNATIONAL SYMPOSIUM DIGEST OF TECHNICAL PAPERS, SAN JOSE, JUNE 14 - 16, 1994, no. VOL. 25, 14 June 1994 (1994-06-14), MORREALE J, pages 359 - 362, XP000462720 *
LEWIS A G ET AL: "POLYSILICON TFT CIRCUIT DESIGN AND PERFORMANCE", IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. 27, no. 12, 1 December 1992 (1992-12-01), pages 1833 - 1842, XP000329035 *
TSUCHI H ET AL: "17.2: A NEW DIGITAL DATA-LINE CIRCUIT FOR TFT-LCD DRIVING", SID INTERNATIONAL SYMPOSIUM. DIGEST OF TECHNICAL PAPERS, SAN DIEGO, MAY 12 - 17, 1996, 12 May 1996 (1996-05-12), SOCIETY FOR INFORMATION DISPLAY, pages 251 - 254, XP000621040 *

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