FR2254081A1 - Electro-optical indicating device - with two support layers, two electrode planes, liquid crystal layer, and dielectric layers - Google Patents

Electro-optical indicating device - with two support layers, two electrode planes, liquid crystal layer, and dielectric layers

Info

Publication number
FR2254081A1
FR2254081A1 FR7434708A FR7434708A FR2254081A1 FR 2254081 A1 FR2254081 A1 FR 2254081A1 FR 7434708 A FR7434708 A FR 7434708A FR 7434708 A FR7434708 A FR 7434708A FR 2254081 A1 FR2254081 A1 FR 2254081A1
Authority
FR
France
Prior art keywords
crystal layer
electro
indicating device
liquid crystal
layers
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
FR7434708A
Other languages
French (fr)
Other versions
FR2254081B1 (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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2254081A1 publication Critical patent/FR2254081A1/en
Application granted granted Critical
Publication of FR2254081B1 publication Critical patent/FR2254081B1/fr
Granted 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
    • G02F1/133345—Insulating layers

Landscapes

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

Abstract

Electro-optical indicating device hs two support layers two electrode planes, a liq. crystal layer, and a first dielectric layer on the surface of one of the support layers directed towards the liq. crystal layer, an electrode pattern with conducting segments being arranged on the first dielectric layer. The device has high contrast between the activated and the background regions. A number of support materials may be used.
FR7434708A 1973-12-06 1974-10-09 Electro-optical indicating device - with two support layers, two electrode planes, liquid crystal layer, and dielectric layers Granted FR2254081A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42213673A 1973-12-06 1973-12-06

Publications (2)

Publication Number Publication Date
FR2254081A1 true FR2254081A1 (en) 1975-07-04
FR2254081B1 FR2254081B1 (en) 1977-10-28

Family

ID=23673544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7434708A Granted FR2254081A1 (en) 1973-12-06 1974-10-09 Electro-optical indicating device - with two support layers, two electrode planes, liquid crystal layer, and dielectric layers

Country Status (1)

Country Link
FR (1) FR2254081A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324550A1 (en) * 1988-01-06 1989-07-19 Semiconductor Energy Laboratory Co., Ltd. Thin film pattern structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324550A1 (en) * 1988-01-06 1989-07-19 Semiconductor Energy Laboratory Co., Ltd. Thin film pattern structure

Also Published As

Publication number Publication date
FR2254081B1 (en) 1977-10-28

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Legal Events

Date Code Title Description
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