HK1056229A1 - Contrast ratio improving method for liquid crystalprojector. - Google Patents

Contrast ratio improving method for liquid crystalprojector.

Info

Publication number
HK1056229A1
HK1056229A1 HK03108486A HK03108486A HK1056229A1 HK 1056229 A1 HK1056229 A1 HK 1056229A1 HK 03108486 A HK03108486 A HK 03108486A HK 03108486 A HK03108486 A HK 03108486A HK 1056229 A1 HK1056229 A1 HK 1056229A1
Authority
HK
Hong Kong
Prior art keywords
crystalprojector
liquid
contrast ratio
improving method
ratio improving
Prior art date
Application number
HK03108486A
Other languages
English (en)
Inventor
Kenichiro Yoshioka
Michiko Torigoe
Kouichi Tanaka
Original Assignee
Nippon Kayaku Kk
Polatechno Co Ltd
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 by Nippon Kayaku Kk, Polatechno Co Ltd filed Critical Nippon Kayaku Kk
Publication of HK1056229A1 publication Critical patent/HK1056229A1/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • 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
    • G02F1/133632—Birefringent elements, e.g. for optical compensation with refractive index ellipsoid inclined relative to the LC-layer surface
    • 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
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • 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
    • G02F2413/04—Number of plates greater than or equal to 4
    • 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
    • G02F2413/10—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 refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate
    • G02F2413/105—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 refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate with varying inclination in thickness direction, e.g. hybrid oriented discotic LC
HK03108486A 2000-05-22 2003-11-21 Contrast ratio improving method for liquid crystalprojector. HK1056229A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000149539 2000-05-22
PCT/JP2001/004209 WO2001090808A1 (fr) 2000-05-22 2001-05-21 Procede pour ameliorer le rapport de contraste d'un projecteur a cristaux liquides

Publications (1)

Publication Number Publication Date
HK1056229A1 true HK1056229A1 (en) 2004-02-06

Family

ID=18655382

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03108486A HK1056229A1 (en) 2000-05-22 2003-11-21 Contrast ratio improving method for liquid crystalprojector.

Country Status (8)

Country Link
US (1) US20030112414A1 (ko)
EP (1) EP1291704A4 (ko)
KR (1) KR100782017B1 (ko)
CN (1) CN1209667C (ko)
CA (1) CA2410074A1 (ko)
HK (1) HK1056229A1 (ko)
TW (1) TW574570B (ko)
WO (1) WO2001090808A1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030079513A (ko) 2002-04-04 2003-10-10 삼성전자주식회사 보상 필름을 이용한 액정 표시 장치
JP3901074B2 (ja) * 2002-11-08 2007-04-04 セイコーエプソン株式会社 液晶表示装置及び電子機器
TWI289689B (en) 2002-12-24 2007-11-11 Sumitomo Chemical Co Optical compensator and projection liquid crystal display device using same
WO2005091628A1 (en) * 2004-03-16 2005-09-29 Koninklijke Philips Electronics, N.V. Brightness regulation in lcd projection systems
TR200701166T1 (tr) * 2004-08-27 2007-04-24 Ar�El�K Anon�M ��Rket� Bir ev cihazı
US7391569B2 (en) * 2004-12-29 2008-06-24 3M Innovative Properties Company Projection system including intrinsic polarizer
JP4609382B2 (ja) * 2006-06-15 2011-01-12 セイコーエプソン株式会社 液晶表示装置及び電子機器
JP5104110B2 (ja) * 2007-05-30 2012-12-19 日本ゼオン株式会社 偏光板および液晶表示装置
JP5797148B2 (ja) * 2011-09-12 2015-10-21 富士フイルム株式会社 コレステリック液晶性混合物、フィルム、選択反射板、積層体および合わせガラス
US20140204459A1 (en) * 2013-01-22 2014-07-24 Cynosure Photonics Corp. High efficiency light combination module of projection system
KR102522253B1 (ko) 2019-02-19 2023-04-17 주식회사 엘지화학 편광판의 제조 방법

Family Cites Families (19)

* Cited by examiner, † Cited by third party
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EP0266184B1 (en) * 1986-10-31 1995-04-12 Seiko Epson Corporation Projection-type display device
JPH03140920A (ja) * 1989-10-26 1991-06-14 Matsushita Electric Ind Co Ltd 投写型表示装置及び該投写型表示装置に用いる液晶表示装置
JP2802719B2 (ja) * 1994-04-08 1998-09-24 富士写真フイルム株式会社 光学異方性シートおよびそれを用いた液晶表示素子
JP2767382B2 (ja) * 1994-04-20 1998-06-18 富士写真フイルム株式会社 光学補償シート
JP3445689B2 (ja) * 1995-07-11 2003-09-08 新日本石油株式会社 液晶性光学フィルムおよび液晶性光学フィルムから成る液晶表示素子用補償フィルム並びに該補償フィルムを備えた液晶表示装置
JPH09203895A (ja) * 1995-08-17 1997-08-05 Toshiba Corp 液晶表示素子および光学異方素子
TW332870B (en) * 1995-08-17 1998-06-01 Toshiba Co Ltd LCD and optical anisotropy device
JP3628094B2 (ja) * 1996-02-15 2005-03-09 株式会社東芝 液晶表示素子および光学異方素子
KR19990028998A (ko) * 1996-05-17 1999-04-15 엠. 제이. 엠. 반캄 액정 디스플레이 장치 및 편광자를 포함하는 광학 부재
JPH1062773A (ja) * 1996-08-16 1998-03-06 Fujitsu Ltd 液晶表示パネル
JPH10186356A (ja) * 1996-12-27 1998-07-14 Nippon Oil Co Ltd 液晶表示素子用光学補償フィルム
ATE404902T1 (de) * 1997-03-10 2008-08-15 Fujifilm Corp Optischer kompensationsfilm für flüssigkristallanzeigen
JPH10333134A (ja) * 1997-05-30 1998-12-18 Nippon Oil Co Ltd 液晶表示素子
JPH11119211A (ja) * 1997-10-09 1999-04-30 Nippon Oil Co Ltd 光学異方素子
KR100422196B1 (ko) * 1998-01-07 2004-03-12 후지 샤신 필름 가부시기가이샤 광학 보상 시트 및 액정 디스플레이
JP4084483B2 (ja) 1998-01-07 2008-04-30 富士フイルム株式会社 光学補償シートおよび液晶表示装置
US6380996B1 (en) * 1998-01-07 2002-04-30 Fuji Photo Film Co., Ltd. Optical compensatory sheet and liquid crystal display
DE69932272T2 (de) * 1998-03-05 2007-07-12 Rockwell International Corp., Thousand Oaks Optische Verzögerungsschicht
EP0940707B1 (en) * 1998-03-05 2006-07-12 MERCK PATENT GmbH Optical retardation film

Also Published As

Publication number Publication date
KR20030040209A (ko) 2003-05-22
CN1430735A (zh) 2003-07-16
KR100782017B1 (ko) 2007-12-06
CA2410074A1 (en) 2002-11-20
CN1209667C (zh) 2005-07-06
EP1291704A4 (en) 2006-04-19
US20030112414A1 (en) 2003-06-19
EP1291704A1 (en) 2003-03-12
TW574570B (en) 2004-02-01
WO2001090808A1 (fr) 2001-11-29

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20150521

ARF Application filed for restoration

Effective date: 20160205

ARG Restoration of standard patent granted

Effective date: 20160520

PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20170521