FR2256588B1 - - Google Patents

Info

Publication number
FR2256588B1
FR2256588B1 FR7441626*A FR7441626A FR2256588B1 FR 2256588 B1 FR2256588 B1 FR 2256588B1 FR 7441626 A FR7441626 A FR 7441626A FR 2256588 B1 FR2256588 B1 FR 2256588B1
Authority
FR
France
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
FR7441626*A
Other versions
FR2256588A1 (fr
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 FR2256588A1 publication Critical patent/FR2256588A1/fr
Application granted granted Critical
Publication of FR2256588B1 publication Critical patent/FR2256588B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
FR7441626*A 1973-12-28 1974-10-30 Expired FR2256588B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US429459A US3911421A (en) 1973-12-28 1973-12-28 Selection system for matrix displays requiring AC drive waveforms

Publications (2)

Publication Number Publication Date
FR2256588A1 FR2256588A1 (fr) 1975-07-25
FR2256588B1 true FR2256588B1 (fr) 1976-10-22

Family

ID=23703343

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441626*A Expired FR2256588B1 (fr) 1973-12-28 1974-10-30

Country Status (5)

Country Link
US (1) US3911421A (fr)
JP (1) JPS5099437A (fr)
DE (1) DE2459723A1 (fr)
FR (1) FR2256588B1 (fr)
GB (1) GB1489435A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048633A (en) * 1974-03-13 1977-09-13 Tokyo Shibaura Electric Co., Ltd. Liquid crystal driving system
JPS51132940A (en) * 1975-05-14 1976-11-18 Sharp Corp Electric source apparatus
JPS522566A (en) * 1975-06-24 1977-01-10 Toshiba Corp Liquid crystal display element driving circuit
US4040721A (en) * 1975-07-14 1977-08-09 Omron Tateisi Electronics Co. Driver circuit for liquid crystal display
GB1581221A (en) * 1976-06-15 1980-12-10 Citizen Watch Co Ltd Matrix driving method for electro-optical display device
US4097856A (en) * 1976-10-04 1978-06-27 International Business Machines Corporation Gas panel single ended drive systems
US4380008A (en) * 1978-09-29 1983-04-12 Hitachi, Ltd. Method of driving a matrix type phase transition liquid crystal display device to obtain a holding effect and improved response time for the erasing operation
DE3061528D1 (en) * 1979-03-13 1983-02-10 Nat Res Dev Analogue displays
US4370647A (en) * 1980-02-15 1983-01-25 Texas Instruments Incorporated System and method of driving a multiplexed liquid crystal display by varying the frequency of the drive voltage signal
US4393379A (en) * 1980-12-31 1983-07-12 Berting John P Non-multiplexed LCD drive circuit
US4496219A (en) * 1982-10-04 1985-01-29 Rca Corporation Binary drive circuitry for matrix-addressed liquid crystal display
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
FI69720C (fi) * 1984-06-05 1986-03-10 Lohja Ab Oy Foerfarande foer foermedling av styrsignaler till raddrivkretsarna vid styrning av tunnfilmelektroluminens-displayanordningar
US4795248A (en) * 1984-08-31 1989-01-03 Olympus Optical Company Ltd. Liquid crystal eyeglass
GB2173337B (en) * 1985-04-03 1989-01-11 Stc Plc Addressing liquid crystal cells
FR2580110B1 (fr) * 1985-04-04 1987-05-29 Commissariat Energie Atomique
US5010328A (en) * 1987-07-21 1991-04-23 Thorn Emi Plc Display device
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824580A (en) * 1972-10-10 1974-07-16 Ibm Gas panel matrix driver

Also Published As

Publication number Publication date
JPS5099437A (fr) 1975-08-07
US3911421A (en) 1975-10-07
GB1489435A (en) 1977-10-19
DE2459723A1 (de) 1975-07-10
FR2256588A1 (fr) 1975-07-25

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Legal Events

Date Code Title Description
ST Notification of lapse