JPS57136622A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS57136622A
JPS57136622A JP56023336A JP2333681A JPS57136622A JP S57136622 A JPS57136622 A JP S57136622A JP 56023336 A JP56023336 A JP 56023336A JP 2333681 A JP2333681 A JP 2333681A JP S57136622 A JPS57136622 A JP S57136622A
Authority
JP
Japan
Prior art keywords
liquid crystal
make
nighttime
substrates
crystal display
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.)
Pending
Application number
JP56023336A
Other languages
Japanese (ja)
Inventor
Nobuyuki Sekimura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56023336A priority Critical patent/JPS57136622A/en
Publication of JPS57136622A publication Critical patent/JPS57136622A/en
Pending 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night

Abstract

PURPOSE:To make symbol display identifiable in the nighttime as well, to make the thickness of a liquid crystal layer uniform, to eliminate the need for providing an illuminating device in the cell and to reduce electric power consumption by disposing spacers coated with phosphor in the liquid crystal layer. CONSTITUTION:A soln. prepd. by dissolving phosphor such as coumalin 6 expressed by the equation, rhodamine B, fluoresceine or the like together with a binder resin in a solvent is coated on glass fibers to make spacers 5 which are disposed between substrates 1, 1 provided with transparent electrodes 2, whereby the substrates are sealed 4. It is equally well to coat a fluorescent material 8 on plastic particles 7 in lieu of the glass fibers. In this way, the liquid crystal display is made distinctly identifiable over a long time in the nighttime without illumination.
JP56023336A 1981-02-19 1981-02-19 Liquid crystal display device Pending JPS57136622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023336A JPS57136622A (en) 1981-02-19 1981-02-19 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023336A JPS57136622A (en) 1981-02-19 1981-02-19 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS57136622A true JPS57136622A (en) 1982-08-23

Family

ID=12107737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023336A Pending JPS57136622A (en) 1981-02-19 1981-02-19 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS57136622A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272053A2 (en) * 1986-12-19 1988-06-22 Fujitsu Limited Illumination apparatus
US5537235A (en) * 1992-02-28 1996-07-16 Matsushita Electric Industrial Co., Ltd. Liquid crystal display with curved substrate and several spacer sizes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272053A2 (en) * 1986-12-19 1988-06-22 Fujitsu Limited Illumination apparatus
US5537235A (en) * 1992-02-28 1996-07-16 Matsushita Electric Industrial Co., Ltd. Liquid crystal display with curved substrate and several spacer sizes

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