KR940002635A - 액정표시용 굴절 거울 - Google Patents

액정표시용 굴절 거울 Download PDF

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Publication number
KR940002635A
KR940002635A KR1019930012043A KR930012043A KR940002635A KR 940002635 A KR940002635 A KR 940002635A KR 1019930012043 A KR1019930012043 A KR 1019930012043A KR 930012043 A KR930012043 A KR 930012043A KR 940002635 A KR940002635 A KR 940002635A
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KR
South Korea
Prior art keywords
plate
mirror
light
major surface
reflected
Prior art date
Application number
KR1019930012043A
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English (en)
Other versions
KR970006760B1 (ko
Inventor
레이 라쟈르시
Original Assignee
알.비.레비
아메리칸 텔리폰 앤드 텔레그라프 캄파니
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Application filed by 알.비.레비, 아메리칸 텔리폰 앤드 텔레그라프 캄파니 filed Critical 알.비.레비
Publication of KR940002635A publication Critical patent/KR940002635A/ko
Application granted granted Critical
Publication of KR970006760B1 publication Critical patent/KR970006760B1/ko

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    • 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
    • G02F1/133553—Reflecting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0087—Simple or compound lenses with index gradient
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

광원(14',14)으로 부터의 빛이 잘 조정된 빔으로 셀을 통해 반사되도록 셀 뒤에 위치한 경사진 굴절판 거울(16',16)을 사용하여 LCD 셀(12)의 콘트라스트가 더 좋게된다.
거울(16',16)은 제1 및 제2의 주요표면(36',36)을 갖는 광학규판(34',34)으로 이루어지고 후자는 거기에 코팅된 반사체(40',40)를 갖는다. 광학판 (34',34)은 경사진 굴절율을 갖고 그 굴절율이 그것의 제1표면에서 제2표면까지 증가된다. 그결과, 빛이 판으로들어가서 거기서 반사되고 판에 수직(42',41)으로 더욱 구부러지도록 굴절되어 거울에 남아있던 빛은 LCD 셀로 잘 조정되게 입력되어서 디스플레이 콘트라스트를 향상시킨다.

Description

액정표시용 굴절 거울
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 LDC를 통해 빛을 반사하는 울퉁불퉁한 포물선 모양의 거울을 이용한 종래 기술의 LDC의 측 단면도.
제2도는 본 발명의 바람직한 제1실시예에 따른 경사진 굴절판(index plate)거울을 구비한 LCD의 측단면도.
제3도는 본 발명에 따른 경사진 굴절판 거울의 바람직한 다른 실시예의 측단면도.
* 도면의 주요부분에 대한 부호의 설명
12 : LCD 14 : 램프
21, 22 : 전극 26 : 편광자

Claims (3)

  1. 광학 또는 영상 시스템 또는 그와 유사한 것의 사용을 위해, 잘 조정된 빔으로 시스템을 통해 거울상에 입사하는 빛을 반사하는 거울에 있어서, 시스템 반대편에 제1주요표면(36')와 시스템응로부터 떨어진 제1표면 반대편의 제2주요표면(38')을 구비한 광학 판(34')과, 제2주요표면이 표면에 부딪치는 빛은 반사하도록 하는 빛 반사체이고, 경사진 굴절율을 갖는 판이 그것의 제1표면에서 제2주요표면까지 증가되고 판을 통과한 빛이 제2주요표면상의 코팅된 반사체에 부닥쳐 반사되어 판을 통해 다시 반사되어 조정된 형태로 판을 통과하는 것을 특징으로 하는 반사용 거울.
  2. 제1항에 있어서, 판은 그것의 중심에서 그것의 모서리까지 판의 몸체를 통해 후방으로 굴절율을 증가시키는 것을 특징으로 하는 거울.
  3. 제1항에 있어서, 제2주요표면은 은(silver : 40')이 코팅된 빛 반사체를 갖는 것을 특징으로 하는 거울.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930012043A 1992-07-02 1993-06-30 액정표시용 굴절 거울 KR970006760B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US908,105 1992-07-02
US07/908,105 US5267063A (en) 1992-07-02 1992-07-02 Gradient index mirror for providing a collimated beam for liquid crystal displays and the like

Publications (2)

Publication Number Publication Date
KR940002635A true KR940002635A (ko) 1994-02-17
KR970006760B1 KR970006760B1 (ko) 1997-04-30

Family

ID=25425191

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930012043A KR970006760B1 (ko) 1992-07-02 1993-06-30 액정표시용 굴절 거울

Country Status (6)

Country Link
US (1) US5267063A (ko)
EP (1) EP0577331A3 (ko)
JP (1) JPH0695114A (ko)
KR (1) KR970006760B1 (ko)
CA (1) CA2096879C (ko)
TW (1) TW236007B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040024134A (ko) * 2002-09-13 2004-03-20 학교법인 한양학원 고정밀 정전용량형 습도센서 및 제조방법

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5617152A (en) * 1993-06-20 1997-04-01 Unic View Ltd. Projector system for video and computer generated information
US5521725A (en) * 1993-11-05 1996-05-28 Alliedsignal Inc. Illumination system employing an array of microprisms
US5396350A (en) * 1993-11-05 1995-03-07 Alliedsignal Inc. Backlighting apparatus employing an array of microprisms
US6129439A (en) * 1993-11-05 2000-10-10 Alliedsignal Inc. Illumination system employing an array of multi-faceted microprisms
US5428468A (en) * 1993-11-05 1995-06-27 Alliedsignal Inc. Illumination system employing an array of microprisms
US5555329A (en) * 1993-11-05 1996-09-10 Alliesignal Inc. Light directing optical structure
US5598281A (en) * 1993-11-19 1997-01-28 Alliedsignal Inc. Backlight assembly for improved illumination employing tapered optical elements
US5715023A (en) * 1996-04-30 1998-02-03 Kaiser Electro-Optics, Inc. Plane parallel optical collimating device employing a cholesteric liquid crystal
US6075651A (en) * 1999-01-28 2000-06-13 Kaiser Electro-Optics, Inc. Compact collimating apparatus
WO2002095485A2 (en) * 2001-05-23 2002-11-28 E-Vision, L.L.C. Focusing mirrors having variable reflective properties
KR100542760B1 (ko) * 2001-07-31 2006-01-20 엘지전자 주식회사 프로젝션 시스템의 투사렌즈계
US7437033B1 (en) * 2004-05-24 2008-10-14 Hrl Laboratories, Llc Apparatus and method for pumping optical fiber
DE102007018719A1 (de) 2007-04-20 2008-10-23 Preh Gmbh Anzeigeeinrichtung in einem Kraftfahrzeug
WO2010135006A2 (en) * 2009-05-22 2010-11-25 The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of The Portland State University Sensitive gas-phase fluorimeter at ambient pressure for nitrogen dioxide
US8526820B1 (en) 2010-09-07 2013-09-03 The Boeing Company High pressure display

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569866B1 (fr) * 1984-08-28 1990-01-19 Canon Kk Dispositif de projection
GB8600022D0 (en) * 1986-01-02 1986-02-12 Rca Corp Arrangement to minimize reflected ambient light
GB8619385D0 (en) * 1986-08-08 1986-09-17 Stc Plc Spatial light modulator
WO1989001640A1 (en) * 1987-08-19 1989-02-23 Integrated Solar Technologies Corporation Macro-gradient optical density transmissive light concentrators, lenses and compound lenses of large geometry, and fabrication thereof
US4900138A (en) * 1988-07-01 1990-02-13 Gradient Lens Corporation Composite gradient index and curved surface anamorphic lens and applications
JPH0262585A (ja) * 1988-08-29 1990-03-02 Sharp Corp 透過型液晶表示装置
JPH03154001A (ja) * 1989-11-13 1991-07-02 Brother Ind Ltd 反射型レンズ
US5061046A (en) * 1989-12-19 1991-10-29 The University Of Rochester Gradient index liquid crystal devices and method of fabrication thereof
US5159495A (en) * 1990-12-11 1992-10-27 Eastman Kodak Company Graded index optical elements and catadioptric optical systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040024134A (ko) * 2002-09-13 2004-03-20 학교법인 한양학원 고정밀 정전용량형 습도센서 및 제조방법

Also Published As

Publication number Publication date
CA2096879A1 (en) 1994-01-03
JPH0695114A (ja) 1994-04-08
US5267063A (en) 1993-11-30
EP0577331A2 (en) 1994-01-05
EP0577331A3 (en) 1994-02-09
CA2096879C (en) 1996-11-12
TW236007B (ko) 1994-12-11
KR970006760B1 (ko) 1997-04-30

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