DE3140907A1 - Liquid crystal display cell - Google Patents

Liquid crystal display cell

Info

Publication number
DE3140907A1
DE3140907A1 DE19813140907 DE3140907A DE3140907A1 DE 3140907 A1 DE3140907 A1 DE 3140907A1 DE 19813140907 DE19813140907 DE 19813140907 DE 3140907 A DE3140907 A DE 3140907A DE 3140907 A1 DE3140907 A1 DE 3140907A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
liquid crystal
crystal display
display cell
display
permanently
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
DE19813140907
Other languages
German (de)
Other versions
DE3140907C2 (en )
Inventor
Juergen Dr Rer Nat Steinbeck
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.)
AEG GESELLSCHAFT FUER MODERNE INFORMATIONSSYSTEME
Original Assignee
Licentia Patent-Verwaltungs-GmbH
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

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F2001/133374Constructional arrangements; Manufacturing methods for displaying permanent signs or marks

Abstract

In a liquid crystal display cell having display zones which display permanently and in a temporally controllable fashion, it is proposed to keep the permanently displaying zones free of liquid crystal material.
DE19813140907 1981-10-15 1981-10-15 Expired DE3140907C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813140907 DE3140907C2 (en) 1981-10-15 1981-10-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813140907 DE3140907C2 (en) 1981-10-15 1981-10-15

Publications (2)

Publication Number Publication Date
DE3140907A1 true true DE3140907A1 (en) 1983-05-05
DE3140907C2 DE3140907C2 (en) 1989-07-27

Family

ID=6144135

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813140907 Expired DE3140907C2 (en) 1981-10-15 1981-10-15

Country Status (1)

Country Link
DE (1) DE3140907C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149725A1 (en) * 1984-01-09 1985-07-31 VDO Adolf Schindling AG Indicating device
US5477357A (en) * 1992-09-21 1995-12-19 Hitachi, Ltd. Liquid crystal display device having a management symbol pattern formed on a substrate
FR2818787A1 (en) * 2000-12-22 2002-06-28 Giat Ind Sa Secure device for multimode display lcd

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823845B1 (en) * 1978-05-31 1978-12-14 Siemens Ag Display device for displaying fixed information and mutable
DE2841338A1 (en) * 1978-04-27 1979-11-08 Ebauches Electroniques Sa Passive electro-optical display cell - has two glass plates containing space filled with layer of non-active material
US4227777A (en) * 1977-02-03 1980-10-14 Citizen Watch Company, Limited Liquid crystal display cell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227777A (en) * 1977-02-03 1980-10-14 Citizen Watch Company, Limited Liquid crystal display cell
DE2841338A1 (en) * 1978-04-27 1979-11-08 Ebauches Electroniques Sa Passive electro-optical display cell - has two glass plates containing space filled with layer of non-active material
DE2823845B1 (en) * 1978-05-31 1978-12-14 Siemens Ag Display device for displaying fixed information and mutable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149725A1 (en) * 1984-01-09 1985-07-31 VDO Adolf Schindling AG Indicating device
US5477357A (en) * 1992-09-21 1995-12-19 Hitachi, Ltd. Liquid crystal display device having a management symbol pattern formed on a substrate
FR2818787A1 (en) * 2000-12-22 2002-06-28 Giat Ind Sa Secure device for multimode display lcd
WO2002051667A1 (en) * 2000-12-22 2002-07-04 Giat Industries Secure multimode display device for lcd screen

Also Published As

Publication number Publication date Type
DE3140907C2 (en) 1989-07-27 grant

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8320 Willingness to grant licenses declared (paragraph 23)
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AEG GESELLSCHAFT FUER MODERNE INFORMATIONSSYSTEME