IT1255688B - LIQUID CRYSTAL DEVICE - Google Patents

LIQUID CRYSTAL DEVICE

Info

Publication number
IT1255688B
IT1255688B ITMI922360A ITMI922360A IT1255688B IT 1255688 B IT1255688 B IT 1255688B IT MI922360 A ITMI922360 A IT MI922360A IT MI922360 A ITMI922360 A IT MI922360A IT 1255688 B IT1255688 B IT 1255688B
Authority
IT
Italy
Prior art keywords
liquid crystal
conductive films
crystal device
transparent conductive
spaces
Prior art date
Application number
ITMI922360A
Other languages
Italian (it)
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 filed Critical
Publication of ITMI922360A0 publication Critical patent/ITMI922360A0/en
Publication of ITMI922360A1 publication Critical patent/ITMI922360A1/en
Application granted granted Critical
Publication of IT1255688B publication Critical patent/IT1255688B/en

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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

Viene descritto un dispositivo a cristalli liquidi comprendente una coppia di substrati trasparenti, pellicole conduttive trasparenti rispettivamente disposte sulle superfici interne dei substrati trasparenti e un mezzo di contenimento contenente un materiale a cristalli liquidi, in spazi, o "gap" interposti fra le pellicole conduttive trasparenti, in cui un indice medio di rifrazione (na) del materiale a carattere di cristallo liquido, un indice di rifrazione (nb) del mezzo di contenimento, una quantità della superficie totale (S) (FORMULA) degli spazi ed una distanza (t) (FORMULA) fra le pellicole conduttive trasparenti, soddisfano la seguente equazione: (EQUAZIONE)A liquid crystal device is described comprising a pair of transparent substrates, transparent conductive films respectively arranged on the internal surfaces of the transparent substrates and a containment means containing a liquid crystal material, in spaces, or "gaps" interposed between the transparent conductive films. , wherein an average refractive index (na) of the liquid crystal material, a refractive index (nb) of the containment medium, a quantity of the total surface (S) (FORMULA) of the spaces and a distance (t) (FORMULA) among the transparent conductive films, satisfy the following equation: (EQUATION)

ITMI922360A 1991-10-18 1992-10-14 LIQUID CRYSTAL DEVICE IT1255688B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3270934A JP3049875B2 (en) 1991-10-18 1991-10-18 Liquid crystal element

Publications (3)

Publication Number Publication Date
ITMI922360A0 ITMI922360A0 (en) 1992-10-14
ITMI922360A1 ITMI922360A1 (en) 1994-04-14
IT1255688B true IT1255688B (en) 1995-11-10

Family

ID=17493039

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922360A IT1255688B (en) 1991-10-18 1992-10-14 LIQUID CRYSTAL DEVICE

Country Status (4)

Country Link
JP (1) JP3049875B2 (en)
DE (1) DE4234981B4 (en)
FR (1) FR2682780B1 (en)
IT (1) IT1255688B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6556262B1 (en) * 2000-01-06 2003-04-29 Eastman Kodak Company Display sheet having memory using limited coalescence domains
DE10110191A1 (en) 2001-03-02 2002-09-12 Webasto Vehicle Sys Int Gmbh Vehicle roof with a lid for closing a roof opening
DE10204359B4 (en) * 2001-03-25 2005-05-04 Webasto Ag vehicle roof
JP7524522B2 (en) * 2019-06-28 2024-07-30 Ｔｏｐｐａｎホールディングス株式会社 How to manage light control sheets
EP4318112A1 (en) * 2021-03-30 2024-02-07 Nitto Denko Corporation Polymer dispersed liquid crystal film and manufacturing method therefor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435047A (en) * 1981-09-16 1984-03-06 Manchester R & D Partnership Encapsulated liquid crystal and method
US4556289A (en) * 1983-03-21 1985-12-03 Manchester R & D Partnership Low birefringence encapsulated liquid crystal and optical shutter using same
WO1985004262A1 (en) * 1984-03-19 1985-09-26 Kent State University Light modulating material comprising a liquid crystal dispersion in a synthetic resin matrix
JPH0273222A (en) * 1988-09-09 1990-03-13 Canon Inc Liquid crystal focusing screen
EP0443571A3 (en) * 1990-02-23 1992-04-15 Ube Industries, Ltd. Liquid crystal display panel
DE4020740A1 (en) * 1990-05-29 1991-12-05 Merck Patent Gmbh METHOD FOR PRODUCING MICRO-ENCODED LIQUID CRYSTALS
JPH0561023A (en) * 1991-06-21 1993-03-12 Nec Corp Liquid crystal electrooptical element and production thereof

Also Published As

Publication number Publication date
JP3049875B2 (en) 2000-06-05
FR2682780A1 (en) 1993-04-23
DE4234981B4 (en) 2004-06-09
DE4234981A1 (en) 1993-04-22
ITMI922360A1 (en) 1994-04-14
JPH05107562A (en) 1993-04-30
FR2682780B1 (en) 1994-04-15
ITMI922360A0 (en) 1992-10-14

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971030