JPS575029A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS575029A
JPS575029A JP7927980A JP7927980A JPS575029A JP S575029 A JPS575029 A JP S575029A JP 7927980 A JP7927980 A JP 7927980A JP 7927980 A JP7927980 A JP 7927980A JP S575029 A JPS575029 A JP S575029A
Authority
JP
Japan
Prior art keywords
axis direction
liquid crystal
cell
adhesives
absorbed
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
JP7927980A
Other languages
Japanese (ja)
Inventor
Toshiko Kato
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.)
Seiko Epson Corp
Epson Corp
Original Assignee
Seiko Epson Corp
Epson 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 Seiko Epson Corp, Epson Corp filed Critical Seiko Epson Corp
Priority to JP7927980A priority Critical patent/JPS575029A/en
Publication of JPS575029A publication Critical patent/JPS575029A/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
    • G02F1/1347—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
    • 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
    • G02F1/13475—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 at least one liquid crystal cell or layer is doped with a pleochroic dye, e.g. GH-LC cell

Abstract

PURPOSE:To improve contrast ratio by inserting a thin film consisting of an org. or inorg. material in a cell to separate a liquid crystal cell chamber into two layers, upper and lower, using liquid crystal materials including dichromatic dyes of the same color or different colors for these two layers and horizontally orienting the liquid crystals of the two upper and lower layers in different directions. CONSTITUTION:After adhesives 13 such as epoxy adhesive are printed on both of upper and lower glass plates 12 in a frame form, a separator thin film 16 is superposed on one glass plate with application of tension, after which the other glass plate is superposed. Then, the adhesives are set at a high temp. to form an empty cell without contg. liquid crystals, and the cell is hermetically sealed by adhesives through liquid crystal injection holes 17. Incident light 18 is natural light vibrating in all directions. In the nonlighted parts, dichromatic dyes 11 are horizontally oriented in an X-axis direction in the upper layer and therefore the polarized light of the incident light 18 in an X-axis direction is absorbed. Therefore, the remaining polarized light 19 in a Y-axis direction enters the lower layer. In the lower layer, the dichromatic dyes 11 are horizontally oriented in the Y-axis direction and therefore the polarized light in the Y-axis direction is absorbed and the incident light 19 is absorbed. In this way, a contrast ratio is improved.
JP7927980A 1980-06-12 1980-06-12 Liquid crystal display device Pending JPS575029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7927980A JPS575029A (en) 1980-06-12 1980-06-12 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7927980A JPS575029A (en) 1980-06-12 1980-06-12 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS575029A true JPS575029A (en) 1982-01-11

Family

ID=13685419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7927980A Pending JPS575029A (en) 1980-06-12 1980-06-12 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS575029A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488164A2 (en) * 1990-11-29 1992-06-03 Hitachi, Ltd. Liquid crystal display device and display apparatus using same
DE19711827A1 (en) * 1996-05-10 1997-11-20 Ibm Stacked liquid crystal display cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488164A2 (en) * 1990-11-29 1992-06-03 Hitachi, Ltd. Liquid crystal display device and display apparatus using same
DE19711827A1 (en) * 1996-05-10 1997-11-20 Ibm Stacked liquid crystal display cell
DE19711827C2 (en) * 1996-05-10 1999-09-09 Ibm Stacked, parallax-free liquid crystal display cell

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