GB1525335A - Method of forming homogeneously oriented film of nematic liquid crystal - Google Patents

Method of forming homogeneously oriented film of nematic liquid crystal

Info

Publication number
GB1525335A
GB1525335A GB421576A GB421576A GB1525335A GB 1525335 A GB1525335 A GB 1525335A GB 421576 A GB421576 A GB 421576A GB 421576 A GB421576 A GB 421576A GB 1525335 A GB1525335 A GB 1525335A
Authority
GB
United Kingdom
Prior art keywords
plates
surfactant
equal
liquid crystal
nematic liquid
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.)
Expired
Application number
GB421576A
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.)
BANNIKOV V
Original Assignee
BANNIKOV V
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 BANNIKOV V filed Critical BANNIKOV V
Priority to GB421576A priority Critical patent/GB1525335A/en
Publication of GB1525335A publication Critical patent/GB1525335A/en
Expired legal-status Critical Current

Links

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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133719—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films with coupling agent molecules, e.g. silane

Abstract

1525335 Aligning liquid crystals V S BANNIKOV M K BERESTENKO V A BYKOV I V MYAGKOV and P S SOTNIKOV 3 Feb 1976 04215/76 Heading G2F A method of forming a homogeneously oriented layer of nematic liquid crystal between a pair of spaced plates comprises (i) forming a monomolecular layer of a surfactant at a liquid/gas interface, with all the long axes of the essentially linear molecules parallel, and with the molecules packed as close as possible under the influence of a low order mechanical force, the surfactant being a water-insoluble compound of the Formula: in which R is C n H (2n + 2k-m-1) Hal m , n is an integer from 12 to 37 subject to the proviso below, m is greater than or equal to 0 and less than or equal to (2 n + 2 k -1), k is greater than or equal to -3 and less than or equal to 1, Hal is F, Cl, or Br, X is =CH 2 , =C=O, =O, =S, -CH=CH-, or =C=CH 2 , b is an integer from 0 to 5, and Y is -OH, -CO 2 H, -SO 3 H, -PO 3 H 2 , provided that n is at least 18 when Y is -SO 3 H, -PO 3 H 2 or -Si(OCH 3 ) 3 , or a water-soluble polyvinyl alcohol or derivative thereof of the Formula: in which 20y # x # 1000, and Z is -H, -COCH 3 , -COCF 3 , or -CH 2 -CH=CH 2 (ii) passing a pair of spaced plates through the interface from the liquid phase to the gas phase so that the packed layer of surfactant is transferred to the surfaces of the plates, (iii) heating the coated plates at a temperature of from 80 to 180‹C, and (iv) introducing a nematic liquid crystal into the space between the plates. The surfactant layers formed on the plates may be subjected to ultraviolet irradiation to effect cross linking.
GB421576A 1976-02-03 1976-02-03 Method of forming homogeneously oriented film of nematic liquid crystal Expired GB1525335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB421576A GB1525335A (en) 1976-02-03 1976-02-03 Method of forming homogeneously oriented film of nematic liquid crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB421576A GB1525335A (en) 1976-02-03 1976-02-03 Method of forming homogeneously oriented film of nematic liquid crystal

Publications (1)

Publication Number Publication Date
GB1525335A true GB1525335A (en) 1978-09-20

Family

ID=9772923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB421576A Expired GB1525335A (en) 1976-02-03 1976-02-03 Method of forming homogeneously oriented film of nematic liquid crystal

Country Status (1)

Country Link
GB (1) GB1525335A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144232A (en) * 1983-07-29 1985-02-27 American Telephone & Telegraph Alignment of liquid crystals
EP0476543A2 (en) * 1990-09-17 1992-03-25 Matsushita Electric Industrial Co., Ltd. Liquid crystal alignment film and method of manufacturing the same
JPH04356020A (en) * 1990-09-17 1992-12-09 Matsushita Electric Ind Co Ltd Liquid crystal oriented film and production thereof as well as liquid crystal display device and production thereof
US5256456A (en) * 1990-09-17 1993-10-26 Matsushita Electric Industrial Co., Ltd. Liquid crystal alignment film and method of manufacturing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144232A (en) * 1983-07-29 1985-02-27 American Telephone & Telegraph Alignment of liquid crystals
EP0476543A2 (en) * 1990-09-17 1992-03-25 Matsushita Electric Industrial Co., Ltd. Liquid crystal alignment film and method of manufacturing the same
EP0476543A3 (en) * 1990-09-17 1992-11-19 Matsushita Electric Industrial Co., Ltd. Liquid crystal alignment film and method of manufacturing the same
JPH04356020A (en) * 1990-09-17 1992-12-09 Matsushita Electric Ind Co Ltd Liquid crystal oriented film and production thereof as well as liquid crystal display device and production thereof
US5256456A (en) * 1990-09-17 1993-10-26 Matsushita Electric Industrial Co., Ltd. Liquid crystal alignment film and method of manufacturing the same
JP2698717B2 (en) 1990-09-17 1998-01-19 松下電器産業株式会社 Liquid crystal alignment film, method of manufacturing the same, liquid crystal display device and method of manufacturing the same

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Legal Events

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