GB1442539A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1442539A – Method of driving liquid crystal display device for numeric display
– Google Patents

GB1442539A – Method of driving liquid crystal display device for numeric display
– Google Patents
Method of driving liquid crystal display device for numeric display

Info

Publication number
GB1442539A

GB1442539A
GB594774A
GB594774A
GB1442539A
GB 1442539 A
GB1442539 A
GB 1442539A
GB 594774 A
GB594774 A
GB 594774A
GB 594774 A
GB594774 A
GB 594774A
GB 1442539 A
GB1442539 A
GB 1442539A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
electrodes
pulses
display device
crystal display
Prior art date
1973-02-09
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
GB594774A
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.)

Hitachi Ltd

Original Assignee
Hitachi 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.)
1973-02-09
Filing date
1974-02-08
Publication date
1976-07-14

1974-02-08
Application filed by Hitachi Ltd
filed
Critical
Hitachi Ltd

1975-02-05
Priority to DE19752504690
priority
Critical
patent/DE2504690A1/en

1976-07-14
Publication of GB1442539A
publication
Critical
patent/GB1442539A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G04—HOROLOGY

G04G—ELECTRONIC TIME-PIECES

G04G9/00—Visual time or date indication means

G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques

G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals

G04G9/122—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals using multiplexing techniques

G—PHYSICS

G04—HOROLOGY

G04G—ELECTRONIC TIME-PIECES

G04G9/00—Visual time or date indication means

G04G9/0023—Visual time or date indication means by light valves in general

G04G9/0029—Details

G04G9/0047—Details electrical, e.g. selection or application of the operating voltage

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

G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions

G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source

G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals

Abstract

1442539 Matrix displays HITACHI Ltd 8 Feb 1974 [9 Feb 1973] 05947/74 Heading G5C A liquid crystal display device having a plurality of figure-of-eight electrode arrays 2 with corresponding electrodes interconnected, and a common electrode 4 opposite each array is driven by applying alternating voltage levels of V 0 , 2V 0 /3, V 0 /3, 0 to the electrodes to produce voltages of V 0 and V 0 /3 across selected and half or non-selected liquid crystal elements respectively. The driving circuit comprises arrays of digit and segment drive circuits 6, 8 ; a ring counter 9, sources 13, 14 of synchronized clock pulses of frequency f and 2f; inverter 15; and decoder 10 with an input unit 12 connected to a computer, clock or watch. One drive circuit using an input of V 0 includes an inverter, 3 NOR gates and 3 transistors which discharge directly or through resistors to provide an output of 0, V 0 /3 or 2V 0 /3. When no transistor is ON the output is V 0 . Other drive circuits include diodes and use inputs of V 0 and 2V 0 /3. These circuits apply 2 pulses of V 0 to selected electrodes and two pulses comprising a subpulse of V 0 /3 and a sub-pulse of 2V 0 /3 to non- selected electrodes (Fig. 2)

GB594774A
1973-02-09
1974-02-08
Method of driving liquid crystal display device for numeric display

Expired

GB1442539A
(en)

Priority Applications (1)

Application Number
Priority Date
Filing Date
Title

DE19752504690

DE2504690A1
(en)

1974-02-08
1975-02-05
Aq. alkaline processing soln for lithographic plate prodn – by diffusion transfer of silver complex image contg. alkali di-carboxylate

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

JP1549373A

JPS5311171B2
(en)

1973-02-09
1973-02-09

Publications (1)

Publication Number
Publication Date

GB1442539A
true

GB1442539A
(en)

1976-07-14

Family
ID=11890315
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB594774A
Expired

GB1442539A
(en)

1973-02-09
1974-02-08
Method of driving liquid crystal display device for numeric display

Country Status (5)

Country
Link

US
(1)

US3877017A
(en)

JP
(1)

JPS5311171B2
(en)

DE
(1)

DE2406093C2
(en)

FR
(1)

FR2217898B1
(en)

GB
(1)

GB1442539A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2738162A1
(en)

1976-08-25
1978-03-02
Sharp Kk

DISPLAY DEVICE WITH LIQUID CRYSTALS

Families Citing this family (26)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

JPS5230864Y2
(en)

1973-11-20
1977-07-14

JPS5099228A
(en)

1973-12-28
1975-08-06

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

JPS5234918B2
(en)

1974-05-31
1977-09-06

JPS5150543A
(en)

1974-10-30
1976-05-04
Shinshu Seiki Kk

FR2298243A1
(en)

1975-01-17
1976-08-13
Thomson Csf
Two-dimensional matrix switching logic – is employed in transmitting signals to liquid crystal digital indicator

JPS5189348A
(en)

1975-02-04
1976-08-05

JPS5196275A
(en)

1975-02-20
1976-08-24

GB1529342A
(en)

1975-04-08
1978-10-18
Post Office
Display drive circuits

JPS5227400A
(en)

1975-08-27
1977-03-01
Sharp Corp
Power source device

JPS5443670Y2
(en)

1975-10-01
1979-12-17

CH616231A5
(en)

1977-07-29
1980-03-14
Bbc Brown Boveri & Cie

JPS5852595B2
(en)

1979-01-08
1983-11-24
株式会社日立製作所

Driving method of matrix type liquid crystal display device

JPS55137583A
(en)

1979-04-13
1980-10-27
Hitachi Ltd
Liquid crystal display unit drive system

JPS55163588A
(en)

1979-06-06
1980-12-19
Canon Kk
Liquid crystal display unit

JPS55166691A
(en)

1979-06-13
1980-12-25
Casio Computer Co Ltd
Blanking system for liquid crystal display device

DE2949810A1
(en)

1979-12-11
1981-06-19
Siemens AG, 1000 Berlin und 8000 München
Semiconductor switching circuit for controlling LCD Indicators – uses IIL logic circuitry and driver transistors for low current consumption and fast switching

DE3008565A1
(en)

1980-03-06
1981-09-17
Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt

ARRANGEMENT FOR PRESENTING INFORMATION WITH LIGHT-EMITTING DIODES

JPS56156817A
(en)

1980-05-09
1981-12-03
Hitachi Ltd
Liquid-crystal display element

US4655561A
(en)

1983-04-19
1987-04-07
Canon Kabushiki Kaisha
Method of driving optical modulation device using ferroelectric liquid crystal

JPS6033535A
(en)

1983-08-04
1985-02-20
Canon Inc
Driving method of optical modulating element

JPS6152630A
(en)

1984-08-22
1986-03-15
Hitachi Ltd
Driving method of liquid crystal element

US5011269A
(en)

1985-09-06
1991-04-30
Matsushita Electric Industrial Co., Ltd.
Method of driving a ferroelectric liquid crystal matrix panel

EP0443248A2
(en)

1990-02-20
1991-08-28
Seiko Epson Corporation
Liquid crystal display device

US7116287B2
(en)

2001-05-09
2006-10-03
Eastman Kodak Company
Drive for cholesteric liquid crystal displays

KR101174768B1
(en)

2007-12-31
2012-08-17
엘지디스플레이 주식회사
Apparatus and method of data interface of flat panel display device

Family Cites Families (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US371173A
(en)

1887-10-11

Water-separating attachment for ice-machines

US3499112A
(en)

1967-03-31
1970-03-03
Rca Corp
Electro-optical device

US3519330A
(en)

1967-09-14
1970-07-07
Rca Corp
Turnoff method and circuit for liquid crystal display element

US3575492A
(en)

1969-07-10
1971-04-20
Rca Corp
Turnoff method and circuit for liquid crystal display element

US3654606A
(en)

1969-11-06
1972-04-04
Rca Corp
Alternating voltage excitation of liquid crystal display matrix

US3653745A
(en)

1970-06-11
1972-04-04
Rca Corp
Circuits for driving loads such as liquid crystal displays

US3731986A
(en)

1971-04-22
1973-05-08
Int Liquid Xtal Co
Display devices utilizing liquid crystal light modulation

JPS5114434B1
(en)

1971-07-29
1976-05-10

US3809458A
(en)

1972-05-25
1974-05-07
Rca Corp
Liquid crystal display

1973

1973-02-09
JP
JP1549373A
patent/JPS5311171B2/ja
not_active
Expired

1974

1974-02-08
FR
FR7404379A
patent/FR2217898B1/fr
not_active
Expired

1974-02-08
DE
DE2406093A
patent/DE2406093C2/en
not_active
Expired

1974-02-08
GB
GB594774A
patent/GB1442539A/en
not_active
Expired

1974-02-11
US
US441356A
patent/US3877017A/en
not_active
Expired – Lifetime

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2738162A1
(en)

1976-08-25
1978-03-02
Sharp Kk

DISPLAY DEVICE WITH LIQUID CRYSTALS

Also Published As

Publication number
Publication date

US3877017A
(en)

1975-04-08

FR2217898B1
(en)

1976-11-26

JPS49108996A
(en)

1974-10-16

DE2406093C2
(en)

1985-05-09

JPS5311171B2
(en)

1978-04-19

DE2406093A1
(en)

1974-08-22

FR2217898A1
(en)

1974-09-06

Información de contacto