CH645234GA3 - - Google Patents

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Publication number
CH645234GA3
CH645234GA3 CH786680A CH786680A CH645234GA3 CH 645234G A3 CH645234G A3 CH 645234GA3 CH 786680 A CH786680 A CH 786680A CH 786680 A CH786680 A CH 786680A CH 645234G A3 CH645234G A3 CH 645234GA3
Authority
CH
Switzerland
Prior art keywords
liquid crystal
display
polarizers
patterns
overlap
Prior art date
Application number
CH786680A
Other languages
German (de)
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 CH645234GA3 publication Critical patent/CH645234GA3/de

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
    • G04G9/0094—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08 using light valves, e.g. liquid crystals
    • 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
    • G02F1/13471—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
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional

Abstract

A liquid crystal display device having a structural arrangement that a plurality of liquid crystal layers each for displaying a pattern are piled up and a pair of polarizers are provided above an uppermost liquid crystal layer and below a lowermost liquid crystal layer, is disclosed in which a polarizer is interposed between adjacent liquid crystal layers in such a manner that adjacent ones of the polarizers are different in direction of transmission axis from each other, in order to eliminate a white on black portion caused by an overlap of the patterns and to thereby reduce the area of a display region; or in which a white on black portion caused by an overlap of the patterns is used as a display portion to form a display pattern having a predetermined shape and to open up new possibilities for color display.
CH786680A 1979-10-24 1980-10-22 CH645234GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13640679A JPS5660483A (en) 1979-10-24 1979-10-24 Liquid crystal display unit

Publications (1)

Publication Number Publication Date
CH645234GA3 true CH645234GA3 (en) 1984-09-28

Family

ID=15174411

Family Applications (1)

Application Number Title Priority Date Filing Date
CH786680A CH645234GA3 (en) 1979-10-24 1980-10-22

Country Status (9)

Country Link
US (1) US4403832A (en)
JP (1) JPS5660483A (en)
CH (1) CH645234GA3 (en)
DE (1) DE3039862A1 (en)
GB (1) GB2062930B (en)
HK (1) HK36085A (en)
IN (1) IN152933B (en)
MY (1) MY8500668A (en)
SG (1) SG40784G (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547043A (en) * 1980-07-25 1985-10-15 Penz Perry A Stacked LCD graphics display
JPS57211122A (en) * 1981-06-23 1982-12-24 Citizen Watch Co Ltd All solid-state complementary type electrochromic display element
GB2110863B (en) * 1981-12-01 1985-10-02 Standard Telephones Cables Ltd Liquid crystal display devices
US4471351A (en) * 1982-05-05 1984-09-11 Litton Systems, Inc. Switchable tandem memory magneto-optic display
JPS59219719A (en) * 1983-05-27 1984-12-11 Seiko Instr & Electronics Ltd Display device of color liquid crystal
US4635051A (en) * 1983-09-26 1987-01-06 Tektronix, Inc. High-speed electro-optical light gate and field sequential full color display system incorporating same
US4758818A (en) * 1983-09-26 1988-07-19 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138454B1 (en) * 1983-09-26 1994-08-31 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
GB2153575B (en) * 1983-12-16 1988-07-27 Citizen Watch Co Ltd Liquid crystal display device
US5216414A (en) * 1989-11-20 1993-06-01 Sharp Kabushiki Kaisha Color liquid crystal display device
JPH0497134A (en) * 1990-08-09 1992-03-30 Sharp Corp Color liquid crystal display device
US6311419B1 (en) 1989-12-31 2001-11-06 Smartlight Ltd. Dedicated mammogram viewer
IL92936A (en) * 1989-12-31 1998-02-08 Smartlight Ltd Self-masking transparency viewing apparatus
GB2245092A (en) * 1990-04-23 1991-12-18 Tfe Hong Kong Limited Multilayer liquid crystal display.
GB9310190D0 (en) * 1993-05-18 1993-06-30 Negretti Aviat Ltd Display system
FR2712109B1 (en) * 1993-11-04 1995-12-15 Ebauchesfabrik Eta Ag Liquid crystal display device.
JPH10503030A (en) * 1993-11-28 1998-03-17 スマートライト・リミテッド Fluoroscopy device with passive matrix LCD
SE509638C2 (en) * 1996-06-15 1999-02-15 Allgon Ab Meander antenna device
US5963276A (en) * 1997-01-09 1999-10-05 Smartlight Ltd. Back projection transparency viewer with overlapping pixels
AU7935698A (en) * 1997-06-30 1999-01-19 Citizen Watch Co. Ltd. Watch
AU1260899A (en) 1997-11-28 1999-06-16 Citizen Watch Co. Ltd. Timepiece
CN1244929A (en) * 1997-11-28 2000-02-16 时至准钟表股份有限公司 Liquid crystal display device and its driving method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622224A (en) * 1969-08-20 1971-11-23 Xerox Corp Liquid crystal alpha-numeric electro-optic imaging device
CH697470A4 (en) * 1970-05-11 1972-08-31
US3944331A (en) * 1972-11-13 1976-03-16 Ncr Corporation Liquid crystal display device
JPS4997636A (en) * 1973-01-18 1974-09-14
JPS53101296A (en) * 1977-02-16 1978-09-04 Seiko Epson Corp Display unit

Also Published As

Publication number Publication date
GB2062930B (en) 1983-07-20
US4403832A (en) 1983-09-13
SG40784G (en) 1985-03-08
JPS5660483A (en) 1981-05-25
DE3039862A1 (en) 1981-05-07
GB2062930A (en) 1981-05-28
HK36085A (en) 1985-05-17
IN152933B (en) 1984-05-05
MY8500668A (en) 1985-12-31

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