KR960028375A - Light valve and projection device using same - Google Patents

Light valve and projection device using same Download PDF

Info

Publication number
KR960028375A
KR960028375A KR1019940038309A KR19940038309A KR960028375A KR 960028375 A KR960028375 A KR 960028375A KR 1019940038309 A KR1019940038309 A KR 1019940038309A KR 19940038309 A KR19940038309 A KR 19940038309A KR 960028375 A KR960028375 A KR 960028375A
Authority
KR
South Korea
Prior art keywords
light valve
light source
light
liquid crystal
crystal display
Prior art date
Application number
KR1019940038309A
Other languages
Korean (ko)
Other versions
KR100337860B1 (en
Inventor
이응상
Original Assignee
윤종용
삼성전관 주식회사
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 윤종용, 삼성전관 주식회사 filed Critical 윤종용
Priority to KR1019940038309A priority Critical patent/KR100337860B1/en
Publication of KR960028375A publication Critical patent/KR960028375A/en
Application granted granted Critical
Publication of KR100337860B1 publication Critical patent/KR100337860B1/en

Links

Classifications

    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • 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
    • G02F1/133528—Polarisers

Landscapes

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

Abstract

본 발명은 액정 라이트 밸브와 이를 이용한 투사장치를 개시한다. 본 발명은 광원과, 이 광원의 전면에 설치되며 감법혼색법에 의해 칼라 화상을 형성하는 라이트 밸브와, 이 라이트 밸브의 전면에 설치되는 투사렌즈군을 구비하여 된 것에 그 특징이 있으며, 이는 투사장치의 박형화 및 소형화가 가능하고 광이용효율을 향상시킬 수 있는 이점을 가진다.The present invention discloses a liquid crystal light valve and a projection device using the same. The present invention is characterized by being provided with a light source, a light valve provided on the front of the light source and forming a color image by subtractive color mixing, and a projection lens group provided on the front of the light valve. It is possible to make the device thinner and smaller and to improve the light utilization efficiency.

Description

라이트 밸브와 이를 이용한 투사장치Light valve and projection device using same

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

제3도는 본 발명에 따른 라이트 밸브를 이용한 측면도, 제4도는 본 발명에 따른 투사장치를 개략적으로 도시한 측면도, 제5도는 감법혼색의 원리를 도시한 도면.3 is a side view using a light valve according to the present invention, FIG. 4 is a side view schematically showing the projection apparatus according to the present invention, and FIG. 5 is a view showing the principle of subtractive color mixing.

Claims (6)

광원과, 이 광원의 전면에 설치되어 칼라 화상을 형성하는 라이트 밸브에 있어서, 상호 적층된 네개의 액정표시소자와, 상기 액정표시소자의 사이에 설치되는 칼라 편광판과, 뉴트럴 편광판을 구비하여 된 것을 특징으로 하는 라이트 밸브.A light source having a light source and a light valve provided in front of the light source to form a color image, comprising four liquid crystal display elements stacked on each other, a color polarizing plate provided between the liquid crystal display elements, and a neutral polarizing plate. Light valve characterized by the above-mentioned. 제1항에 있어서, 상기 각 편광판의 편광축이 상호 평행하게 설치된 것을 특징으로 하는 라이트 밸브.The light valve according to claim 1, wherein the polarization axes of the polarizing plates are provided in parallel with each other. 광원과, 이 광원의 전면에 설치되며 감법혼색법에 의해 칼라 화상을 형성하는 라이트 밸브와, 이 라이트 밸브의 전면에 설치되는 투사렌즈군을 구비하여 된 것을 특징으로 하는 액정 라이트 밸브를 이용한 투사장치.A light source, a light valve provided on the front of the light source and forming a color image by subtractive color mixing, and a projection lens group provided on the front of the light valve. . 제3항에 있어서, 상기 라이트 밸브가 상호 적층된 네개의 액정표시소자와, 상기 액정표시소자의 사이에 설치되는 칼라 편광판과, 뉴트럴 편광판을 구비하여 된 것을 특징으로 하는 라이트 밸브를 이용한 투사장치.4. The projection apparatus according to claim 3, further comprising four liquid crystal display elements in which the light valves are stacked on each other, a color polarizing plate provided between the liquid crystal display elements, and a neutral polarizing plate. 제3항에 있어서, 상기 광원의 배면에는 반사판이 설치된 것을 특징으로 하는 액정 라이트 밸브를 이용한 투사장치.4. A projection apparatus using a liquid crystal light valve according to claim 3, wherein a reflector is provided on a rear surface of the light source. 제4항에 있어서, 상기 각 편광판의 편광축이 상호 평행하게 설치된 것을 특징으로 하는 라이트 밸브를 이용한 투사장치.The projection apparatus according to claim 4, wherein the polarization axes of the polarizing plates are arranged in parallel with each other. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940038309A 1994-12-28 1994-12-28 Light belt and projector using the same KR100337860B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940038309A KR100337860B1 (en) 1994-12-28 1994-12-28 Light belt and projector using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940038309A KR100337860B1 (en) 1994-12-28 1994-12-28 Light belt and projector using the same

Publications (2)

Publication Number Publication Date
KR960028375A true KR960028375A (en) 1996-07-22
KR100337860B1 KR100337860B1 (en) 2002-11-14

Family

ID=37480048

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940038309A KR100337860B1 (en) 1994-12-28 1994-12-28 Light belt and projector using the same

Country Status (1)

Country Link
KR (1) KR100337860B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69313537T2 (en) * 1992-07-03 1998-02-26 Philips Electronics Nv Electrodeless low pressure discharge lamp

Also Published As

Publication number Publication date
KR100337860B1 (en) 2002-11-14

Similar Documents

Publication Publication Date Title
US4368963A (en) Multicolor image or picture projecting system using electronically controlled slides
KR900016787A (en) Liquid Crystal Display Device and Display Cell
KR950704715A (en) ACTIVE MATRIX LIQUID CRYSTAL SUBTRACTIVE COLOR DISPLAY WITH INTEGRAL LIGHT CONFINEMENT
KR910003553A (en) Projection Image Display
CA2099067A1 (en) Plane Light Source Unit
KR900004212A (en) Stereoscopic image display method
KR900018724A (en) Edge-lit LCD
KR970071079A (en) LCD Display
CA2088113A1 (en) Light adjusting sheet for a planar lighting device and a planar lighting device and a liquid crystal display using the sheet
KR900010446A (en) Projection type liquid crystal display
KR930002868A (en) Liquid crystal display
ATE330250T1 (en) LIQUID CRYSTAL DISPLAY WITH O AND E TYPE POLARIZERS
JP2002014419A5 (en)
KR920001951A (en) Image Zoom In Projection Device
KR900007238A (en) Color tv projector
KR950009318A (en) Display
KR960028375A (en) Light valve and projection device using same
JP2001201739A5 (en)
KR970058021A (en) Light valve and projection system using it
JPH0425728Y2 (en)
JP2001075087A5 (en)
JP2003255242A5 (en)
JPS6442630A (en) Variable focus liquid crystal lens
KR910013032A (en) Projection type image display device
IL307778A (en) Increasing the field of view of near-eye displays

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20120427

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20130430

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee