GB2011143A - Liquid-crystal display device - Google Patents

Liquid-crystal display device

Info

Publication number
GB2011143A
GB2011143A GB7848468A GB7848468A GB2011143A GB 2011143 A GB2011143 A GB 2011143A GB 7848468 A GB7848468 A GB 7848468A GB 7848468 A GB7848468 A GB 7848468A GB 2011143 A GB2011143 A GB 2011143A
Authority
GB
United Kingdom
Prior art keywords
elements
group
groups
display device
crystal 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.)
Granted
Application number
GB7848468A
Other versions
GB2011143B (en
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.)
Kohler H M
Original Assignee
Kohler H M
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
Priority claimed from DE19772757502 external-priority patent/DE2757502A1/en
Priority claimed from DE19782803899 external-priority patent/DE2803899C2/en
Application filed by Kohler H M filed Critical Kohler H M
Publication of GB2011143A publication Critical patent/GB2011143A/en
Application granted granted Critical
Publication of GB2011143B publication Critical patent/GB2011143B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G04G9/062—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, 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
    • G04G9/08—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

Abstract

A liquid crystal display device comprises elements F, each actuable individually through a first and a second electrode, e.g. arranged in two concentric circles, e.g. to indicate minutes and hours: the elements in the two circles are divided into matched equal groups I-VI, VII-XII with a common second electrode g1-6, 7-12 for each group, and first electrodes of radially related elements are interconnected; sets of these radial pairs are further connected by conductors e1-10 running circumferentially alternately within the inner circle and outside the outer. Two groups or inner-outer pairs of groups, each group or pair providing independent display of selected elements, are driven with d.c. or a.c. of opposite sign/phase just below threshold, and element sets are driven at voltages chosen to provide above or below threshold p.d. against the group electrodes according to the selected display. The system can be applied to a twin 7-segment digit display. <IMAGE>
GB7848468A 1977-12-22 1978-12-14 Liquid-crystal display device Expired GB2011143B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772757502 DE2757502A1 (en) 1977-12-22 1977-12-22 Liq. crystal display control system - uses two base voltages applied to electrodes of separated groups
DE19782803899 DE2803899C2 (en) 1978-01-30 1978-01-30 Method for controlling a quasi-analog clock display device

Publications (2)

Publication Number Publication Date
GB2011143A true GB2011143A (en) 1979-07-04
GB2011143B GB2011143B (en) 1982-06-30

Family

ID=25773356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7848468A Expired GB2011143B (en) 1977-12-22 1978-12-14 Liquid-crystal display device

Country Status (7)

Country Link
JP (1) JPS5491197A (en)
BR (1) BR7808403A (en)
FR (1) FR2412900A1 (en)
GB (1) GB2011143B (en)
IT (1) IT1109233B (en)
NL (1) NL7812331A (en)
SE (1) SE7812956L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144255A (en) * 1983-07-28 1985-02-27 Secr Defence A meter display
FR2639754A1 (en) * 1988-11-30 1990-06-01 Jaeger Improved liquid-crystal display device
CN105321474A (en) * 2014-07-31 2016-02-10 乐金显示有限公司 Organic light emitting diode display device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH631861GA3 (en) * 1980-02-18 1982-09-15
JPS56153280A (en) * 1981-04-01 1981-11-27 Seikosha Co Ltd Whole electronic analog display timepiece
JPS56153279A (en) * 1981-04-01 1981-11-27 Seikosha Co Ltd Whole electronic analog display timepiece
JPS6349749Y2 (en) * 1987-06-08 1988-12-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144255A (en) * 1983-07-28 1985-02-27 Secr Defence A meter display
FR2639754A1 (en) * 1988-11-30 1990-06-01 Jaeger Improved liquid-crystal display device
CN105321474A (en) * 2014-07-31 2016-02-10 乐金显示有限公司 Organic light emitting diode display device

Also Published As

Publication number Publication date
FR2412900A1 (en) 1979-07-20
IT7852376A0 (en) 1978-12-20
NL7812331A (en) 1979-06-26
BR7808403A (en) 1980-04-01
GB2011143B (en) 1982-06-30
IT1109233B (en) 1985-12-16
SE7812956L (en) 1979-06-23
JPS5491197A (en) 1979-07-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee