CA1018639A - Device comprising a layer of liquid crystal - Google Patents

Device comprising a layer of liquid crystal

Info

Publication number: CA1018639A
Authority: CA; Canada
Prior art keywords: layer; liquid crystal; crystal; liquid
Prior art date: 1973-11-03
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

CA212,456A

Other versions

CA212456S (en

Inventor

Cornelis J. Gerritsma

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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1973-11-03

Filing date

1974-10-28

Publication date

1977-10-04

1974-10-28 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1977-10-04 Application granted granted Critical

1977-10-04 Publication of CA1018639A publication Critical patent/CA1018639A/en

Status Expired legal-status Critical Current

Classifications

- 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
- G02F1/134327—Segmented, e.g. alpha numeric display

Landscapes

Physics & Mathematics (AREA)
Nonlinear Science (AREA)
Geometry (AREA)
Mathematical Physics (AREA)
Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Liquid Crystal (AREA)
Devices For Indicating Variable Information By Combining Individual Elements (AREA)

CA212,456A 1973-11-03 1974-10-28 Device comprising a layer of liquid crystal Expired CA1018639A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7315103A NL7315103A (en)	1973-11-03	1973-11-03	DEVICE EQUIPPED WITH A LAYER OF LIQUID CRYSTAL.

Publications (1)

Publication Number	Publication Date
CA1018639A true CA1018639A (en)	1977-10-04

Family

ID=19819934

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA212,456A Expired CA1018639A (en)	1973-11-03	1974-10-28	Device comprising a layer of liquid crystal

Country Status (7)

Country	Link
JP (1)	JPS5081097A (en)
CA (1)	CA1018639A (en)
CH (1)	CH576153A5 (en)
DE (1)	DE2450698C2 (en)
FR (1)	FR2250173B1 (en)
GB (1)	GB1479643A (en)
NL (1)	NL7315103A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH614828GA3 (en) *	1976-06-16	1979-12-28		Liquid-crystal display with a guest/host liquid-crystal layer and method for producing this liquid-crystal display
CH626770GA3 (en) *	1977-03-16	1981-12-15		Method for producing a liquid crystal display having a guest/host liquid crystal layer
CH617281A5 (en) *	1977-07-29	1980-05-14	Bbc Brown Boveri & Cie
JPS5613271U (en) *	1979-07-12	1981-02-04
JP2678594B2 (en) *	1986-03-06	1997-11-17	セイコーエプソン株式会社	Liquid crystal display

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3647280A (en) *	1969-11-06	1972-03-07	Rca Corp	Liquid crystal display device
US3751137A (en) *	1971-10-18	1973-08-07	Rockwell International Corp	Liquid crystal display device
JPS4878898A (en) *	1972-01-21	1973-10-23

1973
- 1973-11-03 NL NL7315103A patent/NL7315103A/en not_active Application Discontinuation
1974
- 1974-10-25 DE DE19742450698 patent/DE2450698C2/en not_active Expired
- 1974-10-28 CA CA212,456A patent/CA1018639A/en not_active Expired
- 1974-10-31 JP JP12609174A patent/JPS5081097A/ja active Pending
- 1974-10-31 GB GB4717274A patent/GB1479643A/en not_active Expired
- 1974-11-01 CH CH1468174A patent/CH576153A5/xx not_active IP Right Cessation
- 1974-11-04 FR FR7436584A patent/FR2250173B1/fr not_active Expired

Also Published As

Publication number	Publication date
GB1479643A (en)	1977-07-13
DE2450698C2 (en)	1982-08-12
CH576153A5 (en)	1976-05-31
DE2450698A1 (en)	1975-05-07
JPS5081097A (en)	1975-07-01
NL7315103A (en)	1975-05-07
FR2250173A1 (en)	1975-05-30
FR2250173B1 (en)	1978-11-24

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