IT8420643A1 - " Disposizione per ridurre la trasmissione residua in indicatori LCD" - Google Patents
" Disposizione per ridurre la trasmissione residua in indicatori LCD"Info
- Publication number
- IT8420643A1 IT8420643A1 IT1984A20643A IT2064384A IT8420643A1 IT 8420643 A1 IT8420643 A1 IT 8420643A1 IT 1984A20643 A IT1984A20643 A IT 1984A20643A IT 2064384 A IT2064384 A IT 2064384A IT 8420643 A1 IT8420643 A1 IT 8420643A1
- Authority
- IT
- Italy
- Prior art keywords
- arrangement
- remaining transmission
- reduce remaining
- lcd indicators
- indicators
- Prior art date
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
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/01—Number of plates being 1
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/08—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates with a particular optical axis orientation
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833314632 DE3314632A1 (de) | 1983-04-22 | 1983-04-22 | Anordnung zur reduzierung der resttransmission bei lcd-anzeigen |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8420643A0 IT8420643A0 (it) | 1984-04-20 |
IT8420643A1 true IT8420643A1 (it) | 1985-10-20 |
IT1178472B IT1178472B (it) | 1987-09-09 |
Family
ID=6197088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20643/84A IT1178472B (it) | 1983-04-22 | 1984-04-20 | Disposizione per ridurre la trasmissione residua in indicatori lcd |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0139654B1 (it) |
JP (1) | JPS60501182A (it) |
DE (2) | DE3314632A1 (it) |
IT (1) | IT1178472B (it) |
WO (1) | WO1984004403A1 (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2580105A1 (en) * | 1985-04-04 | 1986-10-10 | Commissariat Energie Atomique | Display cell with nematic liquid crystals of the reflective type with electrically-controlled birefringence making it possible to improve the illumination of the display |
EP0246842B1 (en) * | 1986-05-19 | 1998-09-23 | Seiko Epson Corporation | A liquid crystal display device |
US4767190A (en) * | 1986-12-04 | 1988-08-30 | Xerox Corporation | Transient state liquid crystal image bar with contrast enhancement |
KR0134974B1 (ko) * | 1987-07-29 | 1998-04-22 | 미다 가쓰시게 | 트위스트 나선구조를 가지는 네마틱 액정표시장치 |
JP2651026B2 (ja) * | 1989-09-20 | 1997-09-10 | 株式会社日立製作所 | 液晶表示装置 |
EP0571996A1 (en) * | 1992-05-28 | 1993-12-01 | Rohm Co., Ltd. | Liquid crystal display device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2250458A5 (en) * | 1973-11-02 | 1975-05-30 | Thomson Csf | Electro-optical display device - has birefringent strip and liquid crystal between pair of electrodes |
GB1462978A (en) * | 1974-04-17 | 1977-01-26 | Rank Organisation Ltd | Optical apparatus |
GB2028527B (en) * | 1978-06-08 | 1982-11-24 | American Liquid Xtal Chem | Liquid crystal displays |
DE3022818C2 (de) * | 1980-06-19 | 1986-11-27 | Merck Patent Gmbh, 6100 Darmstadt | Flüssigkristall-Anzeigeelement |
-
1983
- 1983-04-22 DE DE19833314632 patent/DE3314632A1/de not_active Withdrawn
- 1983-12-24 JP JP59500385A patent/JPS60501182A/ja active Pending
- 1983-12-24 EP EP84900272A patent/EP0139654B1/de not_active Expired
- 1983-12-24 DE DE8484900272T patent/DE3373367D1/de not_active Expired
- 1983-12-24 WO PCT/DE1983/000220 patent/WO1984004403A1/de active IP Right Grant
-
1984
- 1984-04-20 IT IT20643/84A patent/IT1178472B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1178472B (it) | 1987-09-09 |
WO1984004403A1 (en) | 1984-11-08 |
EP0139654B1 (de) | 1987-09-02 |
DE3373367D1 (en) | 1987-10-08 |
EP0139654A1 (de) | 1985-05-08 |
JPS60501182A (ja) | 1985-07-25 |
IT8420643A0 (it) | 1984-04-20 |
DE3314632A1 (de) | 1984-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950420 |