ITTO940520A0 - Visualizzatore a cristalli liquidi di tipo twisted nematic drogato conpigmenti ad ampio angolo di visione con fogli di ritardo. - Google Patents
Visualizzatore a cristalli liquidi di tipo twisted nematic drogato conpigmenti ad ampio angolo di visione con fogli di ritardo.Info
- Publication number
- ITTO940520A0 ITTO940520A0 ITTO940520A ITTO940520A ITTO940520A0 IT TO940520 A0 ITTO940520 A0 IT TO940520A0 IT TO940520 A ITTO940520 A IT TO940520A IT TO940520 A ITTO940520 A IT TO940520A IT TO940520 A0 ITTO940520 A0 IT TO940520A0
- Authority
- IT
- Italy
- Prior art keywords
- conpigments
- dopped
- liquid crystal
- crystal display
- viewing angle
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title 1
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
- G02F1/1335—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
- 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
- G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
-
- 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
- G02F1/13725—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 guest-host interaction
-
- 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
- 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
- G02F2413/02—Number of plates being 2
-
- 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
- G02F2413/07—All plates on one side of the LC cell
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002099642A CA2099642A1 (en) | 1993-06-24 | 1993-06-24 | Wide viewing-angle dye-doped tn lcd with retardation sheets |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO940520A0 true ITTO940520A0 (it) | 1994-06-23 |
ITTO940520A1 ITTO940520A1 (it) | 1995-12-23 |
IT1268078B1 IT1268078B1 (it) | 1997-02-20 |
Family
ID=4151881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT94TO000520A IT1268078B1 (it) | 1993-06-24 | 1994-06-23 | Visualizzatore a cristalli liquidi di tipo twisted nematic drogato con pigmenti ad ampio angolo di visione con fogli di ritardo. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5589965A (it) |
CA (1) | CA2099642A1 (it) |
DE (1) | DE4422218A1 (it) |
FR (1) | FR2707019B1 (it) |
GB (1) | GB2279466B (it) |
IT (1) | IT1268078B1 (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3974217B2 (ja) * | 1997-04-02 | 2007-09-12 | シャープ株式会社 | 液晶表示パネルおよび液晶表示装置 |
KR100286762B1 (ko) | 1997-06-27 | 2001-04-16 | 박종섭 | 액정 표시 소자 |
JPH11109335A (ja) * | 1997-09-30 | 1999-04-23 | Sharp Corp | 液晶表示装置 |
KR100789864B1 (ko) | 2006-11-02 | 2007-12-28 | 삼성정밀화학 주식회사 | 콜레스테릭 액정 고분자, 이를 포함하는 근적외선 차단필름과 근적외선 차단 필터, 및 상기 근적외선 차단 필름또는 필터를 구비하는 표시소자 |
CN111142300B (zh) * | 2020-02-26 | 2022-09-27 | 上海天马微电子有限公司 | 显示装置、显示装置的制作方法以及控制方法 |
WO2022187949A1 (en) * | 2021-03-08 | 2022-09-15 | Tigran Galstian | Liquid crystal cell assembly and method for detection enhancement |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4946954A (it) * | 1972-09-11 | 1974-05-07 | ||
JPS5887538A (ja) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | 液晶表示素子 |
JPS58143305A (ja) * | 1982-02-22 | 1983-08-25 | Hitachi Ltd | 表示パネル |
JPS58186723A (ja) * | 1982-04-26 | 1983-10-31 | Seiko Epson Corp | 液晶表示装置 |
US4527864A (en) * | 1983-03-29 | 1985-07-09 | Xerox Corporation | High contrast liquid crystal display devices |
GB2171549B (en) * | 1985-02-15 | 1988-05-18 | Citizen Watch Co Ltd | Liquid crystal display device |
JPS62257123A (ja) * | 1986-04-30 | 1987-11-09 | Seiko Epson Corp | 投射型表示装置 |
JPS6352118A (ja) * | 1986-08-22 | 1988-03-05 | Toyota Motor Corp | 反射型液晶表示素子 |
JPH02925A (ja) * | 1988-03-18 | 1990-01-05 | Sharp Corp | 液晶表示装置 |
JPH01304423A (ja) * | 1988-06-02 | 1989-12-08 | Seiko Instr Inc | 液晶装置 |
JPH02143563A (ja) * | 1988-11-25 | 1990-06-01 | Fuji Electric Co Ltd | サイリスタ |
US5184236A (en) * | 1990-08-10 | 1993-02-02 | Casio Computer Co., Ltd. | Twisted nematic liquid crystal display device with retardation plates having phase axis direction within 15° of alignment direction |
US5150235A (en) * | 1991-02-04 | 1992-09-22 | Honeywell Inc. | Apparatus for improving the angle of view in a liquid crystal display |
-
1993
- 1993-06-24 CA CA002099642A patent/CA2099642A1/en not_active Abandoned
-
1994
- 1994-06-17 GB GB9412121A patent/GB2279466B/en not_active Expired - Fee Related
- 1994-06-23 US US08/264,300 patent/US5589965A/en not_active Expired - Fee Related
- 1994-06-23 IT IT94TO000520A patent/IT1268078B1/it active IP Right Grant
- 1994-06-24 FR FR9407780A patent/FR2707019B1/fr not_active Expired - Fee Related
- 1994-06-24 DE DE4422218A patent/DE4422218A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE4422218A1 (de) | 1995-01-05 |
ITTO940520A1 (it) | 1995-12-23 |
GB9412121D0 (en) | 1994-08-10 |
CA2099642A1 (en) | 1994-12-25 |
GB2279466A (en) | 1995-01-04 |
US5589965A (en) | 1996-12-31 |
GB2279466B (en) | 1997-11-05 |
IT1268078B1 (it) | 1997-02-20 |
FR2707019B1 (it) | 1998-01-02 |
FR2707019A1 (it) | 1994-12-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |