JPS57109920A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPS57109920A JPS57109920A JP18808180A JP18808180A JPS57109920A JP S57109920 A JPS57109920 A JP S57109920A JP 18808180 A JP18808180 A JP 18808180A JP 18808180 A JP18808180 A JP 18808180A JP S57109920 A JPS57109920 A JP S57109920A
- Authority
- JP
- Japan
- Prior art keywords
- liq
- crystal
- films
- nematic
- display element
- 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
- G02F1/137—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)
- Liquid Crystal (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE:To obtain a high grade display by crossing the orienting directions of 2 glass substrates each having an oriented polyimide film at <=90 deg. and using a liq. crystal layer of only a nematic liq. crystal or the liq. crystal contg. a small amount of an optically active material or the like reverse to the liq. crystal in optical rotatory power. CONSTITUTION:In a twisted nematic field effect mode liq. crystal display element, 2 glass substrates are coated with polyimide polymer films, and the films are rubbed to form orienting films making the tilt angle of a liq. crystal about 10 deg.. The orienting directions of the films are crossed at 80 deg.. The liq. crystal layer is formed with only a nematic liq. crystal or the liq. crystal and about 0.25wt% optically active material or cholesteric liq. crystal reverse to the nematic liq. crystal molecules in optical rotatory power. Thus, the occurrence of a phenomenon causing the coexistence of levo-rotatory and dextro-rotatory liq. crystal molecule regions in one display element and the formation of an induced domain are prevented, and a high grade display is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18808180A JPS57109920A (en) | 1980-12-26 | 1980-12-26 | Liquid crystal display element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18808180A JPS57109920A (en) | 1980-12-26 | 1980-12-26 | Liquid crystal display element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57109920A true JPS57109920A (en) | 1982-07-08 |
Family
ID=16217364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18808180A Pending JPS57109920A (en) | 1980-12-26 | 1980-12-26 | Liquid crystal display element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57109920A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61226730A (en) * | 1985-03-30 | 1986-10-08 | Sharp Corp | Twisted nematic type liquid crystal display element |
JPS6463925A (en) * | 1987-09-04 | 1989-03-09 | Asahi Glass Co Ltd | Liquid crystal display device |
JPH01252932A (en) * | 1988-03-31 | 1989-10-09 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
EP0352792A2 (en) * | 1988-07-29 | 1990-01-31 | Casio Computer Company Limited | Liquid crystal device |
-
1980
- 1980-12-26 JP JP18808180A patent/JPS57109920A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61226730A (en) * | 1985-03-30 | 1986-10-08 | Sharp Corp | Twisted nematic type liquid crystal display element |
JPS6463925A (en) * | 1987-09-04 | 1989-03-09 | Asahi Glass Co Ltd | Liquid crystal display device |
JPH01252932A (en) * | 1988-03-31 | 1989-10-09 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
EP0352792A2 (en) * | 1988-07-29 | 1990-01-31 | Casio Computer Company Limited | Liquid crystal device |
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