CA1003073A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
CA1003073A
CA1003073A CA143,619A CA143619A CA1003073A CA 1003073 A CA1003073 A CA 1003073A CA 143619 A CA143619 A CA 143619A CA 1003073 A CA1003073 A CA 1003073A
Authority
CA
Canada
Prior art keywords
liquid crystal
display device
crystal display
liquid
display
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.)
Expired
Application number
CA143,619A
Other versions
CA143619S (en
Inventor
Masahide Tsukamoto
Tetsuro Ohtsuka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA1003073A publication Critical patent/CA1003073A/en
Expired 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
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H04N3/127—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays using liquid crystals
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
CA143,619A 1971-06-02 1972-06-01 Liquid crystal display device Expired CA1003073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46038863A JPS523560B1 (en) 1971-06-02 1971-06-02

Publications (1)

Publication Number Publication Date
CA1003073A true CA1003073A (en) 1977-01-04

Family

ID=12537027

Family Applications (1)

Application Number Title Priority Date Filing Date
CA143,619A Expired CA1003073A (en) 1971-06-02 1972-06-01 Liquid crystal display device

Country Status (6)

Country Link
US (1) US3776615A (en)
JP (1) JPS523560B1 (en)
CA (1) CA1003073A (en)
FR (1) FR2140169B1 (en)
GB (1) GB1387928A (en)
NL (1) NL7207548A (en)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739396C1 (en) * 1970-12-28 2002-07-09 Gilbert P Hyatt Projection display system
US4471385A (en) * 1970-12-28 1984-09-11 Hyatt Gilbert P Electro-optical illumination control system
US5432526A (en) * 1970-12-28 1995-07-11 Hyatt; Gilbert P. Liquid crystal display having conductive cooling
US5398041A (en) * 1970-12-28 1995-03-14 Hyatt; Gilbert P. Colored liquid crystal display having cooling
US4672457A (en) * 1970-12-28 1987-06-09 Hyatt Gilbert P Scanner system
JPS4977538A (en) * 1972-11-27 1974-07-26
JPS4977537A (en) * 1972-11-27 1974-07-26
FR2214523B1 (en) * 1973-01-18 1976-05-14 Thomson Csf
US3837730A (en) * 1973-11-28 1974-09-24 Bell Telephone Labor Inc Matrix-addressed liquid crystal display
JPS5650277B2 (en) * 1973-03-27 1981-11-27
FR2229331A5 (en) * 1973-05-09 1974-12-06 Thomson Csf
FR2230410A1 (en) * 1973-05-24 1974-12-20 Commissariat Energie Atomique Control of molecular orientation in liq. crystals - by applying electric field at varying frequencies
US3936815A (en) * 1973-08-06 1976-02-03 Nippon Telegraph And Telephone Public Corporation Apparatus and method for writing storable images into a matrix-addressed image-storing liquid crystal display device
JPS5757718B2 (en) * 1973-10-19 1982-12-06 Hitachi Ltd
JPS5416894B2 (en) * 1974-03-01 1979-06-26
US3932860A (en) * 1974-04-25 1976-01-13 Timex Corporation Electro-optical display with circuitry for applying predetermined potentials to all display segments to effect activation of a selected segment only
USRE31872E (en) * 1974-04-25 1985-04-23 Timex Corporation Electro-optical display with circuitry for applying predetermined potentials to all display segments to effect activation of a selected segment only
US3977769A (en) * 1974-05-31 1976-08-31 Matsushita Electric Industrial Co., Ltd. Electro-optic device
DE2504564B2 (en) * 1974-06-07 1977-11-24 (+) P-ALKOXY-P '- (2-METHYLBUTYL) AZOXYBENZENE AND A CHOLESTERINIC LIQUID CRYSTAL MIXTURE CONTAINING THIS
US3973830A (en) * 1974-06-07 1976-08-10 Matsushita Electric Industrial Co., Ltd. Electro-optic device
US4082029A (en) * 1976-09-10 1978-04-04 Juan M. del Castillo Optical metronomes
GB1595861A (en) * 1977-02-14 1981-08-19 Citizen Watch Co Ltd Matrix drive system for liquid crystal display
US4180813A (en) * 1977-07-26 1979-12-25 Hitachi, Ltd. Liquid crystal display device using signal converter of digital type
JPS5443762A (en) * 1977-09-13 1979-04-06 Seiko Epson Corp Liquid crystal mechanism
JPS5458399A (en) * 1977-10-18 1979-05-11 Sharp Corp Matrix type liquid crystal display unit
JPS5762029A (en) * 1980-09-30 1982-04-14 Sharp Corp Terminal treating system for multilayered liquid-crystal panel
US4655561A (en) * 1983-04-19 1987-04-07 Canon Kabushiki Kaisha Method of driving optical modulation device using ferroelectric liquid crystal
GB2146473B (en) * 1983-09-10 1987-03-11 Standard Telephones Cables Ltd Addressing liquid crystal displays
US4595259A (en) * 1984-01-19 1986-06-17 Xerox Corporation Transient state liquid crystal image bar for electrophotographic printers
US4691200A (en) * 1984-10-01 1987-09-01 Xerox Corporation Matrix display with a fast cursor
GB2173337B (en) * 1985-04-03 1989-01-11 Stc Plc Addressing liquid crystal cells
FR2580106B1 (en) * 1985-04-05 1988-03-18 Commissariat Energie Atomique
DE3726623A1 (en) * 1987-08-11 1989-02-23 Eurosil Electronic Gmbh Liquid-crystal display
US5359345A (en) * 1992-08-05 1994-10-25 Cree Research, Inc. Shuttered and cycled light emitting diode display and method of producing the same
US5724062A (en) * 1992-08-05 1998-03-03 Cree Research, Inc. High resolution, high brightness light emitting diode display and method and producing the same
US5594565A (en) * 1994-12-02 1997-01-14 General Electric Company Programmable liquid crystal wavefront device
US5604510A (en) * 1995-01-10 1997-02-18 Palomar Technologies Corporation Liquid crystal display drive with voltage translation
US5812105A (en) * 1996-06-10 1998-09-22 Cree Research, Inc. Led dot matrix drive method and apparatus
US7385574B1 (en) 1995-12-29 2008-06-10 Cree, Inc. True color flat panel display module
US5933203A (en) * 1997-01-08 1999-08-03 Advanced Display Systems, Inc. Apparatus for and method of driving a cholesteric liquid crystal flat panel display
US7034785B2 (en) * 1997-11-20 2006-04-25 Sanyo Electric Co., Ltd. Color liquid crystal display
US6304304B1 (en) * 1997-11-20 2001-10-16 Sanyo Electric Co., Ltd. Liquid crystal display having an off driving voltage greater than either zero or an optical characteristics changing voltage
JP4413730B2 (en) * 2004-09-28 2010-02-10 富士通株式会社 Liquid crystal display device and driving method thereof
CN104503145B (en) * 2014-12-24 2018-01-09 深圳市华星光电技术有限公司 A kind of method and apparatus for improving the positive negativity mixed liquid crystal response time

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503673A (en) * 1967-09-14 1970-03-31 Rca Corp Reduction of turn-on delay in liquid crystal cell
US3650603A (en) * 1967-12-05 1972-03-21 Rca Corp Liquid crystal light valve containing a mixture of nematic and cholesteric materials in which the light scattering effect is reduced when an electric field is applied

Also Published As

Publication number Publication date
US3776615A (en) 1973-12-04
FR2140169B1 (en) 1973-07-13
DE2227055B2 (en) 1976-12-30
DE2227055A1 (en) 1972-12-07
JPS523560B1 (en) 1977-01-28
FR2140169A1 (en) 1973-01-12
NL7207548A (en) 1972-12-05
GB1387928A (en) 1975-03-19

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