KR950001341A - LCD panel for LCD projector - Google Patents

LCD panel for LCD projector Download PDF

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Publication number
KR950001341A
KR950001341A KR1019930011025A KR930011025A KR950001341A KR 950001341 A KR950001341 A KR 950001341A KR 1019930011025 A KR1019930011025 A KR 1019930011025A KR 930011025 A KR930011025 A KR 930011025A KR 950001341 A KR950001341 A KR 950001341A
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KR
South Korea
Prior art keywords
light
liquid crystal
plate
converging means
light converging
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KR1019930011025A
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Korean (ko)
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KR970000348B1 (en
Inventor
김후식
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이대원
삼성항공산업 주식회사
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Priority to KR1019930011025A priority Critical patent/KR970000348B1/en
Priority to CA002125098A priority patent/CA2125098A1/en
Priority to JP6150300A priority patent/JPH0713161A/en
Priority to GB9411657A priority patent/GB2279171A/en
Priority to FR9407234A priority patent/FR2706666A1/en
Priority to DE4420828A priority patent/DE4420828A1/en
Priority to CN94106478A priority patent/CN1102002A/en
Publication of KR950001341A publication Critical patent/KR950001341A/en
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Publication of KR970000348B1 publication Critical patent/KR970000348B1/en

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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
    • G02F1/133526—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
    • 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
    • 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]
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/40—Arrangements for improving the aperture ratio

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)

Abstract

본 발명은 액정투영기용 액정패녈에 관한 것으로, 실효개구율을 향상시킴과 동시에 구경이 작은 광학계의 사용을 가능케 함을 목적으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal panel for a liquid crystal projector, and aims at improving the effective aperture ratio and enabling the use of an optical system having a small aperture.

본 발명 액정패널은 광입사측에 광집속수단을 광출사측에 광보정수단을 마련한 것이다. 광집속수단과 광보정수단은 각각 상면판(40)의 외면측에 위치되는 마이크로볼록렌즈(61)와, 하면판(50)의 외면측에 위치되는 마이크로오목렌즈(62)로 구성될 수 있으며, 상면판(40)과 하면판(50) 자체를 오목／볼록하게 형성하여 렌즈효과를 낼수 있으며 상면판과 하면판의 각 부의를 굴절율이 다른 재질로 하여 렌즈효과를 낼수도 있다. 이러한 액정패널은 입사되는 광을 집속시켜 실효개구율을 향상시킴과 동시에 출사되는 광을 평행광으로 바꿈으로써 이를 포용하는 액정투영기의 광학계의 구경을 작게 하여 제품의 크기를 소형으로 할 수 있으며 제조원자를 절감할 수 있다.The liquid crystal panel of the present invention is provided with a light converging means on the light incidence side and a light compensating means on the light outgoing side. The light converging means and the light compensating means may be composed of micro convex lenses 61 positioned on the outer surface side of the upper plate 40 and micro concave lenses 62 positioned on the outer surface side of the lower plate 50, respectively. In addition, the upper plate 40 and the lower plate 50 itself can be concave / convex to produce a lens effect, and each part of the upper plate and the lower plate may be made of a material having a different refractive index to produce a lens effect. Such a liquid crystal panel focuses the incident light to improve the effective opening ratio, and simultaneously converts the emitted light into parallel light so that the diameter of the optical system of the liquid crystal projector that embraces it can be reduced in size and the manufacturing cost is reduced. can do.

Description

액정투영기용 액정패널LCD panel for LCD projector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 4 도는 본 발명에 따른 액정패널의 개략도.4 is a schematic view of a liquid crystal panel according to the present invention.

Claims (19)

그 내면에 다수의 광투과부를 가지며 빛을 입사부위에 위치되는 상면판과, 상기 상면판과 소정간격 이격되어 빛의 출사부위에 설치되는 하면판과, 상기 상면판과 하면판사이에 충진되는 액정물질과, 광입사측에 마련되어 입사되는 광을 집속시키기 위한 광집속수단, 그리고 광출사측에 마련되어 집속 또는 발산되는 빛을 대략 평행한 빛으로 보정하기 위한 광보정수단을 구비하는 것을 특징으로 하는 액정패널.An upper surface plate having a plurality of light transmitting parts on its inner surface and positioned at an incident part of the light, a lower surface plate installed at an exit portion of the light at a predetermined interval from the upper surface plate, and a liquid crystal material filled between the upper surface plate and the lower surface plate And light converging means provided on the light incidence side to focus the incident light, and light calibrating means provided on the light exit side to correct the light focused or diverged into approximately parallel light. . 제 1 항에 있어서, 상기 광집속수단은 상기 상면판의 외면측에 위치되는 마이크로렌즈이고, 상기 광보정수단은 상기 하면판의 외면측에 위치되는 마이크로렌즈인 것을 특징으로 하는 액정패널.The liquid crystal panel according to claim 1, wherein the light converging means is a micro lens positioned on an outer surface side of the upper plate, and the light compensating means is a micro lens located on an outer surface side of the lower plate. 제 2 항에 있어서, 상기 광집속수단은 상기 상면판의 외면측에 위치되는 마이크로 볼록렌즈이고, 상기 광보정수단은 상기 하면판의 외면측에 위치되는 마이크로 오목렌즈인 것을 특징으로 하는 액정패널.3. The liquid crystal panel according to claim 2, wherein the light converging means is a micro convex lens positioned on an outer surface side of the top plate, and the light compensating means is a micro concave lens located on an outer surface side of the bottom plate. 제 3 항에 있어서, 상기 마이크로 오목렌즈는 평면으로 된 광입사면과 오목면으로된 광출사면을 구비하고, 상기 광투과부와 상기 마이크로 볼록렌즈의 초점 사이에 위치되는 것을 특징으로 하는 액정패널.4. The liquid crystal panel according to claim 3, wherein the micro concave lens has a planar light incident surface and a concave surface light emitting surface, and is positioned between the light transmitting portion and the focal point of the micro convex lens. 제 2 항에 있어서, 상기 광집속수단은 상기 상면판의 외면측에 위치되는 마이크로 볼록렌즈이고, 상기 광보정수단도 상기 하면판의 외면측에 위치되는 마이크로 볼록렌즈인 것을 특징으로 하는 액정패널.3. The liquid crystal panel according to claim 2, wherein the light converging means is a micro convex lens positioned on an outer surface side of the top plate, and the light compensating means is a micro convex lens located on an outer surface side of the bottom plate. 제 2 항 내지 제 5 항중 어느 한 항에 있어서, 상기 마이크로렌즈는 상기 각 광투과부의 위치에 상응하여 다수 설치되는 것을 특징으로 하는 액정패널.The liquid crystal panel according to any one of claims 2 to 5, wherein a plurality of the microlenses are provided in correspondence with the positions of the light transmitting parts. 제 1 항에 있어서, 상기 광집속수단은 상기 상면판의 광투과부 대응부위가 볼록하게 형성되어 구성되고, 상기 광보정수단은 상기 광투과부와 상기 광집속수단의 촛점 사이에 위치되며 상기 하면판의 광투과부에 대응되는 부위가 오목하게 형성되어 구성되는 것을 특징으로 하는 액정패널.The light converging means of the light converging portion of the upper plate is convex, and the light compensating means is located between the focus of the light transmissive portion and the light converging means. A liquid crystal panel comprising a portion corresponding to the light transmitting portion is formed concave. 제 1 항에 있어서, 상기 광집속수단은 상기 상면판의 광투과부 대응부위가 블록하게 형성되어 구성되고, 상기 광보정수단은 상기 광집속수단의 촛점을 지나 위치되며 상기 하면판의 광투과부에 대응되는 부위가 볼록하게 형성되어 구성되는 것을 특징으로 하는 액정패널.The light converging means of the light converging portion of the upper plate is formed to block, the light compensating means is positioned beyond the focus of the light converging means and corresponding to the light transmitting portion of the lower plate. Liquid crystal panel characterized in that the portion is formed convexly configured. 제 1 항에 있어서, 상기 광 집속수단은, 상기 상면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴저률이 낮아지는 재료로 구성되어 되고, 상기 광보정수단은 상기 광투과부와 상기 광집속수단의 촛점 사이에 위치되며 상기 하면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 높아지는 재료로 구성되어 되는 것을 특징으로 하는 액정패널.The light converging means according to claim 1, wherein the light converging means is made of a material whose curvature is gradually lowered as the light transmissive portion corresponding portion of the upper plate goes from the center portion to the periphery portion. The liquid crystal panel, which is located between the focal points of the means, is made of a material in which the light transmitting portion corresponding portion of the lower plate gradually increases in refractive index from the center portion to the periphery portion. 제 1 항에 있어서, 상기 광집속수단은, 상기 상면판의 강투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 낮아지는 재료로 구성되어 되고, 상기 광보정수단은 상기 광집속수단의 촛점을 지나 위치되며 상기 하면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 낮아지는 재료로 구성되어 되는 것을 특징으로 하는 액정패널.The light converging means of claim 1, wherein the light converging means is made of a material whose refractive index gradually decreases from the central portion to the periphery of the top plate, and the light compensating means passes through the focus of the light concentrating means. And the light transmitting portion corresponding portion of the lower plate is made of a material whose refractive index is gradually lowered from the central portion to the peripheral portion. 광원으로부터 나온 빛을 반사하는 반사경과, 전자신호에 의해 영상을 발생시키는 액정패널과, 상기 액정패널의 영상을 스크린위에 확대상으로 투영하는 렌즈가 빛의 진행 경로를 따라 차례로 설치되며, 상기 액정패널은 그 내면에 다수의 광투과부가 형성된 상면판과, 액정물질을 개재하여 상기 상면판과 대향배치되는 하면판을 구비하는 액정투영기에 있어서, 상기 액정패널의 광입사측에는 입사되는 빛을 집속광으로 바꾸기 위한 광집속수단이 마련되고, 상기 액정패널의 광출사측에는 집속 또는 발산되는 빛을 대략 평행한 빛으로 바꾸기 위한 광보정수단이 마련되는 것을 특징으로 하는 액정투영기.A reflector for reflecting light from a light source, a liquid crystal panel for generating an image by an electronic signal, and a lens for projecting an image of the liquid crystal panel on a screen in an enlarged image are sequentially installed along a path of light. In the liquid crystal projector comprising a top plate having a plurality of light transmission portion on the inner surface and a bottom plate facing the top plate via a liquid crystal material, the incident light on the light incident side of the liquid crystal panel as a focused light And a light converging means for changing, and a light compensating means for converting the focused or divergent light into substantially parallel light on the light output side of the liquid crystal panel. 제11항에 있어서, 상기 광집속수단은 상기 상면판의 외면측에 위치된느 마이크로렌즈이고, 상기 광보정수단은 상기 하면판의 외면측에 위치되는 마이크로렌즈인 것을 특징으로 하는 액정투영기.12. The liquid crystal projector according to claim 11, wherein the light converging means is a micro lens positioned on an outer surface side of the top plate, and the light compensating means is a micro lens located on an outer surface side of the bottom plate. 제12항에 있어서, 상기 광집속수단은 상기 상면판의 외면측에 위치되는 마이크로 볼록렌즈이고, 상기 광보정수단은 상기 하면판의 외면측에 위치되는 마이크로 오목렌즈인 것을 특징으로 하는 액정투영기.13. The liquid crystal projector according to claim 12, wherein the light converging means is a micro convex lens located on an outer surface side of the top plate, and the light compensating means is a micro concave lens located on an outer surface side of the bottom plate. 제13항에 있어서, 상기 마이크로 오목렌즈는 평면으로 된 광입사면으로 오목면으로 된 광출사면을 구비하고, 상기 광투과부와 상기 마이크로 볼록렌즈의 초점 사이에 위치되는 것을 특징으로 하는 액정투영기.14. The liquid crystal projector according to claim 13, wherein the micro concave lens has a planar light incidence surface and has a concave light exit surface, and is located between the light transmitting portion and the focal point of the micro convex lens. 제12항에 있어서, 상기 광집속수단은 상기 상면판의 외면측에 위치되는 마이크로 볼록렌즈이고, 상기 광보정수단은 상기 마이크로 볼록렌즈의 촛점을 지나 상기 하면판의 외면측에 위치되는 마이크로 볼록렌즈인 것을 특징으로 하는 액정투영기.The microconvex lens of claim 12, wherein the light converging means is a micro convex lens positioned on an outer surface side of the upper surface plate, and the light compensating means is positioned on an outer surface side of the lower plate through a focal point of the micro convex lens. Liquid crystal projector characterized in that. 제11항에 있어서, 상기 광집속수단은 상기 상면판의 광투과부 대응부위가 볼록하게 형성되어 구성되고, 상기 광보정수단은 상기 광투과부와 상기 광집속수단의 촛점 사이에 위치되며 상기 하면판의 광투과부 대응부위가 오목하게 형성되어 구성되는 것을 특징으로 하는 액정투영기.The light converging means of the light converging portion of the upper plate is convex, wherein the light compensating means is positioned between the light transmitting portion and the focus of the light converging means. Liquid crystal projector characterized in that the light transmitting portion corresponding portion is formed concave. 제11항에 있어서, 상기 광집속수단은 상기 상면판의 광투과부 대응부위가 볼록하게 형성되어 구성되고, 상기 광보정수단은 상기 광집속수단의 촛점을 지나 위치되며 상기 하면판의 광투과부 대응부위가 볼록하게 형성되어 구성되는 것을 특징으로 하는 액정투영기.The light converging means of the light converging portion of the upper plate is convex, and the light compensating means is positioned beyond the focus of the light converging means, and the light transmissive portion of the lower plate. Is formed convexly configured liquid crystal projector. 제11항에 있어서, 상기 광집속수단은, 상기 상면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 낮아지는 재료로 구성되어 되고, 상기 광보정수단은 상기 광투과부와 상기 광집속수단의 촛점 사이에 위치되며 상기 하면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 높아지는 재료로 구성되어 되는 것을 특징으로 하는 액정투영기.12. The light converging means according to claim 11, wherein the light converging means is made of a material whose refractive index gradually decreases from the center portion to the periphery of the light transmitting portion of the upper plate, and the light compensating means comprises the light transmitting portion and the light converging means. Positioned between the focal points of the liquid crystal projector, characterized in that the light transmitting portion corresponding portion of the lower plate is made of a material that gradually increases the refractive index from the central portion to the peripheral portion. 제11항에 있어서, 상기 광집속수단은 , 상기 상면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 낮아지는 재료로 구성되어 되고, 상기 광보정수단은 상기 광집속수단의 촛점 사이에 위치되며 상기 하면판의 광투과부 대응부위가 중앙부로부터 주변부로 갈수록 점차로 굴절률이 낮아지는 재료로 구성되어 되는 것을 특징으로 하는 액정투영기.12. The light converging means according to claim 11, wherein the light converging means is made of a material whose refractive index is gradually lowered from the center portion to the periphery of the light transmitting portion of the top plate, and the light compensating means is located between the focal points of the light converging means. And the light transmitting portion corresponding portion of the lower plate is made of a material whose refractive index is gradually lowered from the central portion to the peripheral portion. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930011025A 1993-06-16 1993-06-16 Liquid crystal panel for liquid crystal projector KR970000348B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1019930011025A KR970000348B1 (en) 1993-06-16 1993-06-16 Liquid crystal panel for liquid crystal projector
CA002125098A CA2125098A1 (en) 1993-06-16 1994-06-03 Liquid crystal display panel and liquid crystal projector employing the same
JP6150300A JPH0713161A (en) 1993-06-16 1994-06-07 Liquid-crystal display panel and liquid- crystal projector applying it
GB9411657A GB2279171A (en) 1993-06-16 1994-06-10 Liquid crystal display
FR9407234A FR2706666A1 (en) 1993-06-16 1994-06-14 Liquid crystal display panel and liquid crystal projector using the same.
DE4420828A DE4420828A1 (en) 1993-06-16 1994-06-15 Liquid crystal display panel and liquid crystal projector using the same
CN94106478A CN1102002A (en) 1993-06-16 1994-06-16 Liquid crystal display panel and liquid crystal projector employing the same

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KR1019930011025A KR970000348B1 (en) 1993-06-16 1993-06-16 Liquid crystal panel for liquid crystal projector

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KR970000348B1 KR970000348B1 (en) 1997-01-08

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JP3278084B2 (en) * 1993-04-30 2002-04-30 キヤノン株式会社 Display device and projection device using the same
KR100213968B1 (en) 1996-07-15 1999-08-02 구자홍 Liquid crystal display device
JP3515880B2 (en) * 1997-06-30 2004-04-05 ダイワ精工株式会社 Fishing reel
US6643067B2 (en) * 2000-11-22 2003-11-04 Seiko Epson Corporation Electro-optical device and electronic apparatus
US8059345B2 (en) * 2002-07-29 2011-11-15 Digitaloptics Corporation East Integrated micro-optical systems
JP6123317B2 (en) 2013-02-05 2017-05-10 セイコーエプソン株式会社 Liquid crystal device and electronic device
FR3054021A1 (en) * 2016-07-13 2018-01-19 Valeo Vision LIGHT DEVICE FOR VARIABLE IMAGE PROJECTION
CN112863326B (en) * 2019-11-12 2022-12-09 Oppo广东移动通信有限公司 Transparent screen, manufacturing method of transparent screen and mobile terminal
CN111312739B (en) * 2020-02-26 2022-10-21 云谷（固安）科技有限公司 Display panel and display device

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JPH0642126B2 (en) * 1988-10-26 1994-06-01 シャープ株式会社 Projection type image display device
JPH03140920A (en) * 1989-10-26 1991-06-14 Matsushita Electric Ind Co Ltd Projection type display device and liquid crystal display device used for this projection type display device
JPH0626131A (en) * 1992-04-16 1994-02-01 Takenaka Komuten Co Ltd Execution method of precast concrete block with sound absorbing material

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GB2279171A (en) 1994-12-21
JPH0713161A (en) 1995-01-17
DE4420828A1 (en) 1994-12-22
FR2706666A1 (en) 1994-12-23
CA2125098A1 (en) 1994-12-17
KR970000348B1 (en) 1997-01-08
CN1102002A (en) 1995-04-26

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