JPS5688112A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPS5688112A JPS5688112A JP16666079A JP16666079A JPS5688112A JP S5688112 A JPS5688112 A JP S5688112A JP 16666079 A JP16666079 A JP 16666079A JP 16666079 A JP16666079 A JP 16666079A JP S5688112 A JPS5688112 A JP S5688112A
- Authority
- JP
- Japan
- Prior art keywords
- layers
- liquid crystal
- orientation
- directions
- substrates
- 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
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
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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE: To mutually align the visual angle ranges that give contrast and make display easy to see by constituting the twisting directions and spiral pitches of liquid crystal molecules in a specific relation between two layers in a multilayered twisted nematic (TN) liquid crystal device.
CONSTITUTION: Transparent electrodes 3a, 3b, 3c, 3d, and orientation layers 5a, 5b, 5c, 5d are formed on trasparent substrates 1a, 1b, 1c, and TN liquid crystal layers 2a, 2b are sealed 6a, 6b. Polarizing plates 7a, 7b and a reflection plate 8 are provided on the outer side of the substrates 1a, 1c. The orientation directions r2 2 and r1 2 of the orientation films 5a, 5b are made mutually orthogonal and counterclockwise, and the orientation directions r2 1, r1 1 of the orientation layers 5c, 5d are made mutually orthogonal and clockwise; in addition, the direction r2 1 of the orientation layer 5b are made to differ 180° in direction. Additionally, the absolute values of the intrinsic spiral pitches of the liquid crystal layers 2a, 2b are made approximately equal. In this way, the interference colors of the layers 2a, 2b are made inconspicuous, whereby the contrast is improved and the visual angle ranges are aligned.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16666079A JPS5688112A (en) | 1979-12-20 | 1979-12-20 | Liquid crystal display device |
DE19803048024 DE3048024C2 (en) | 1979-12-20 | 1980-12-19 | "Liquid crystal display device with twisted nematic liquid crystal filling" |
GB8040817A GB2066498B (en) | 1979-12-20 | 1980-12-19 | Multi-layered twisted nematic liquid crystal display panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16666079A JPS5688112A (en) | 1979-12-20 | 1979-12-20 | Liquid crystal display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5688112A true JPS5688112A (en) | 1981-07-17 |
Family
ID=15835368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16666079A Pending JPS5688112A (en) | 1979-12-20 | 1979-12-20 | Liquid crystal display device |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5688112A (en) |
DE (1) | DE3048024C2 (en) |
GB (1) | GB2066498B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4920364A (en) * | 1989-05-10 | 1990-04-24 | Xerox Corporation | Liquid crystal dynamic attenuator for laser printers |
JPH02116829A (en) * | 1988-10-27 | 1990-05-01 | Sharp Corp | Liquid crystal display device |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56130715A (en) * | 1980-03-17 | 1981-10-13 | Sharp Corp | Multilayered liquid-crystal display device |
US4443065A (en) * | 1980-12-09 | 1984-04-17 | Sharp Kabushiki Kaisha | Interference color compensation double layered twisted nematic display |
DE3204426A1 (en) * | 1982-02-09 | 1983-08-18 | Siemens AG, 1000 Berlin und 8000 München | Device for producing characters on a light-sensitive recording carrier |
DE3310427A1 (en) * | 1983-03-23 | 1984-09-27 | Borg Instruments GmbH, 7537 Remchingen | Method for optimising the contrast of field-effect liquid crystal cells |
IT1196057B (en) * | 1983-03-23 | 1988-11-10 | Borg Instr Gmbh | POLYCHROME LIQUID CRYSTAL INDICATOR DEVICE AND PROCEDURE TO OPTIMIZE THE CONTRAST OF LIQUID CRYSTAL CELLS WITH FIELD EFFECT |
DE3438756C2 (en) * | 1984-10-23 | 1987-03-12 | Borg Instruments GmbH, 7537 Remchingen | Double rotary cell display device |
DE3721751A1 (en) * | 1987-07-01 | 1989-01-12 | Eps Elektronik | Optoelectronic filter preferably for video cameras |
US4952036A (en) * | 1989-06-07 | 1990-08-28 | In Focus Systems, Inc. | High resolution LCD display system |
US5113272A (en) * | 1990-02-12 | 1992-05-12 | Raychem Corporation | Three dimensional semiconductor display using liquid crystal |
EP0682782B1 (en) * | 1993-02-03 | 2001-12-12 | PREHN, Horst | Image modulation process and device for generating optical effects |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS542580B2 (en) * | 1974-07-01 | 1979-02-09 | ||
JPS52148150A (en) * | 1976-06-04 | 1977-12-09 | Hitachi Ltd | Liquid crystal display unit |
JPS5922924B2 (en) * | 1976-11-19 | 1984-05-30 | セイコーエプソン株式会社 | liquid crystal display device |
US4231640A (en) * | 1977-07-07 | 1980-11-04 | Sharp Kabushiki Kaisha | Matrix type liquid crystal display panel |
US4375317A (en) * | 1978-11-16 | 1983-03-01 | Sharp Kabushiki Kaisha | Multi-layered liquid crystal display panel |
-
1979
- 1979-12-20 JP JP16666079A patent/JPS5688112A/en active Pending
-
1980
- 1980-12-19 GB GB8040817A patent/GB2066498B/en not_active Expired
- 1980-12-19 DE DE19803048024 patent/DE3048024C2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02116829A (en) * | 1988-10-27 | 1990-05-01 | Sharp Corp | Liquid crystal display device |
US4920364A (en) * | 1989-05-10 | 1990-04-24 | Xerox Corporation | Liquid crystal dynamic attenuator for laser printers |
Also Published As
Publication number | Publication date |
---|---|
DE3048024C2 (en) | 1987-07-09 |
DE3048024A1 (en) | 1981-10-08 |
GB2066498A (en) | 1981-07-08 |
GB2066498B (en) | 1983-07-13 |
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