CA2046357A1 - Liquid crystal display - Google Patents

Liquid crystal display

Info

Publication number
CA2046357A1
CA2046357A1 CA2046357A CA2046357A CA2046357A1 CA 2046357 A1 CA2046357 A1 CA 2046357A1 CA 2046357 A CA2046357 A CA 2046357A CA 2046357 A CA2046357 A CA 2046357A CA 2046357 A1 CA2046357 A1 CA 2046357A1
Authority
CA
Canada
Prior art keywords
column
data signal
pixels
conductors
frequency
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.)
Granted
Application number
CA2046357A
Other languages
French (fr)
Other versions
CA2046357C (en
Inventor
Shinichi Kimura
Hiroshi Suzuki
Hidefumi Yamaguchi
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2046357A1 publication Critical patent/CA2046357A1/en
Application granted granted Critical
Publication of CA2046357C publication Critical patent/CA2046357C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • 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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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

Abstract

LIQUID CRYSTAL DISPLAY
ABSTRACT
Without the need of a data signal of high frequency such as a horizontal scanning frequency, the polarity of data signal applied to one pixel can be inverted to the polarity of data signal applied to pixels horizontally and vertically adjacent to the one pixel so that a flicker cannot be recognized by an observer. A first data signal is applied to every other column conductor of a plurality of column conductors and a second data signal is applied to remaining column conductors. The polarity of the first data signal is inverted to that of the second data signal. In one mode of the invention, the pixels in the same row are connected to the same row, and the pixels in one column are alternately connected to one column conductor to which the first data signal is applied and to the other column conductor to which the second data signal is applied. The pixels in a column adjacent to the above one column are alternately connected to the above one and the other column conductors with one pixel being shifted in the column direction with respect to the pixels in the above one column. In another mode of the invention, the pixels in each row are alternately connected to adjacent two row conductors, and the pixels in each column are alternately connected to one column conductor to which the first data signal is applied and to the other column conductor to which the second data signal is applied. In both modes, the frequency of the first and second data signals can be made a flame frequency. If the number of row conductors are 550, the frequency of data signal is 550 times smaller than prior art.
CA002046357A 1990-07-09 1991-07-05 Liquid crystal display Expired - Fee Related CA2046357C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2179728A JPH0467091A (en) 1990-07-09 1990-07-09 Liquid crystal display unit
JP179,728 1990-07-09

Publications (2)

Publication Number Publication Date
CA2046357A1 true CA2046357A1 (en) 1992-01-10
CA2046357C CA2046357C (en) 1994-07-05

Family

ID=16070834

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002046357A Expired - Fee Related CA2046357C (en) 1990-07-09 1991-07-05 Liquid crystal display

Country Status (5)

Country Link
US (1) US5253091A (en)
EP (1) EP0466378B1 (en)
JP (1) JPH0467091A (en)
CA (1) CA2046357C (en)
DE (1) DE69110361T2 (en)

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KR100853771B1 (en) * 2002-04-20 2008-08-25 엘지디스플레이 주식회사 Liquid crystal display
KR100875182B1 (en) * 2002-04-20 2008-12-22 엘지디스플레이 주식회사 LCD and its manufacturing method
KR100890022B1 (en) 2002-07-19 2009-03-25 삼성전자주식회사 Liquid crystal display and driving method thereof
DE10252166A1 (en) * 2002-11-09 2004-05-19 Philips Intellectual Property & Standards Gmbh Matrix display with pixel selection arrangement of neighboring pixels being connected mutually with bordering control lines
KR100884996B1 (en) * 2002-11-11 2009-02-20 엘지디스플레이 주식회사 Liquid crystal display panel
KR100942833B1 (en) * 2002-12-20 2010-02-18 엘지디스플레이 주식회사 Liquid Crystal Display and Driving Apparatus of Thereof
US7397455B2 (en) * 2003-06-06 2008-07-08 Samsung Electronics Co., Ltd. Liquid crystal display backplane layouts and addressing for non-standard subpixel arrangements
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KR101187207B1 (en) * 2005-08-04 2012-10-02 삼성디스플레이 주식회사 Liquid crystal display
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TW200830244A (en) * 2007-01-05 2008-07-16 Novatek Microelectronics Corp Display panel and display device using the same and control-signal driving method thereof
TWI358051B (en) * 2007-04-25 2012-02-11 Novatek Microelectronics Corp Lcd and display method thereof
JP5665255B2 (en) 2007-10-15 2015-02-04 Ｎｌｔテクノロジー株式会社 Display device, driving method thereof, terminal device, and display panel
CN101726892B (en) * 2008-10-24 2012-07-18 群康科技(深圳)有限公司 Liquid crystal display panel
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JP5927280B2 (en) * 2014-12-08 2016-06-01 Ｎｌｔテクノロジー株式会社 Display panel and display device having the same
CN105182647B (en) * 2015-10-16 2019-01-11 深圳市华星光电技术有限公司 array substrate, liquid crystal display panel and driving method
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Also Published As

Publication number Publication date
DE69110361T2 (en) 1996-01-25
JPH0467091A (en) 1992-03-03
CA2046357C (en) 1994-07-05
EP0466378A2 (en) 1992-01-15
EP0466378B1 (en) 1995-06-14
DE69110361D1 (en) 1995-07-20
US5253091A (en) 1993-10-12
EP0466378A3 (en) 1992-08-05

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Legal Events

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