JPS5776523A - Multi-layer liquid crystal display device - Google Patents

Multi-layer liquid crystal display device

Info

Publication number
JPS5776523A
JPS5776523A JP15284780A JP15284780A JPS5776523A JP S5776523 A JPS5776523 A JP S5776523A JP 15284780 A JP15284780 A JP 15284780A JP 15284780 A JP15284780 A JP 15284780A JP S5776523 A JPS5776523 A JP S5776523A
Authority
JP
Japan
Prior art keywords
liquid crystal
character
polarizing plate
polarizing
electric conduction
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
JP15284780A
Other languages
Japanese (ja)
Other versions
JPH0151816B2 (en
Inventor
Susumu Yoshikawa
Hiroyuki Fujita
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.)
TOUA TOKUSHIYU DENKI KK
Toa Corp
Toa Tokushu Denki KK
Original Assignee
TOUA TOKUSHIYU DENKI KK
Toa Electric Co Ltd
Toa Tokushu Denki KK
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 TOUA TOKUSHIYU DENKI KK, Toa Electric Co Ltd, Toa Tokushu Denki KK filed Critical TOUA TOKUSHIYU DENKI KK
Priority to JP15284780A priority Critical patent/JPS5776523A/en
Publication of JPS5776523A publication Critical patent/JPS5776523A/en
Publication of JPH0151816B2 publication Critical patent/JPH0151816B2/ja
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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell

Abstract

PURPOSE:To ensure a selective display for an optional character with extremely high contrast through a comparatively simple structure, by combining plural twist nematic liquid crystal cells and plural character polarizing plates and then driving the liquid crystal cell in a specified way. CONSTITUTION:A light source 100, a polarizing plate 200, a liquid crystal (nematic mode of twist angle 90 deg.) 300, a character polarizing plate 400 of figure ''4'', a liquid crystal 500- a character polarizing plate 1,000 of figure ''10'', etc. are distributed in that order from an end side (e.g. left side). (The polarizing axis of each polarizing plate and the polarizing axis of the light which can pass through each liquid crystal cell when the electric conduction is given to each cell are vertical, and the mark 1,100 indicates an observer.) For a device having above-mentioned structure, no electric conduction is applied to liquid crystals 300 and 500, and the electric conduction is applied to liquid crystal cells 600, 800 and 900 respectively for instance. As a result, only the figure ''4'' on the plate 400 is displayed. (An arrow mark shows the vibrating direction of the incident light of each character polarizing plate.)
JP15284780A 1980-10-30 1980-10-30 Multi-layer liquid crystal display device Granted JPS5776523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15284780A JPS5776523A (en) 1980-10-30 1980-10-30 Multi-layer liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15284780A JPS5776523A (en) 1980-10-30 1980-10-30 Multi-layer liquid crystal display device

Publications (2)

Publication Number Publication Date
JPS5776523A true JPS5776523A (en) 1982-05-13
JPH0151816B2 JPH0151816B2 (en) 1989-11-06

Family

ID=15549425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15284780A Granted JPS5776523A (en) 1980-10-30 1980-10-30 Multi-layer liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5776523A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531495A (en) * 1976-06-25 1978-01-09 Omron Tateisi Electronics Co Liquid crystal display unit
JPS5482653U (en) * 1977-11-21 1979-06-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531495A (en) * 1976-06-25 1978-01-09 Omron Tateisi Electronics Co Liquid crystal display unit
JPS5482653U (en) * 1977-11-21 1979-06-12

Also Published As

Publication number Publication date
JPH0151816B2 (en) 1989-11-06

Similar Documents

Publication Publication Date Title
EP0127374A3 (en) Colour liquid crystal display device
JPS55166619A (en) Multilayer liquid crystal display device
JPS64519A (en) Liquid crystal display device
EP0376243A3 (en) A ferroelectric liquid crystal display device
JPS56122885A (en) Liquid crystal display apparatus
JPS5249854A (en) Liquid crystal display device
JPS5545037A (en) Liquid crystal display device
JPS5776523A (en) Multi-layer liquid crystal display device
JPS6425123A (en) Liquid crystal display device
JPS55110217A (en) Driving system of liquid crystal display device
JPS6410223A (en) Liquid crystal display panel
JPS5548734A (en) Colored liquid crystal display device
JPS55140816A (en) Liquid crystal display element
JPS56102826A (en) Liquid crystal display device
JPS5737330A (en) Liquid crystal display device
JPS5778518A (en) Guest-host liquid display device
JPS5536802A (en) Liquid crystal color display device
JPS56162717A (en) Liquid crystal display device
JPS52122098A (en) Display driving system of liquid crystal display unit
JPS5525036A (en) Liquid crystal display cell
JPS5487546A (en) Liquid crystal display device
JPS52109897A (en) Liquid crystal display unit
JPS5778029A (en) Liquid crystal display device
JPS57119324A (en) Liquid crystal display device
JPS56155921A (en) Liquid crystal display device