KR960043923A - Single LCD LCD Projector - Google Patents

Single LCD LCD Projector Download PDF

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Publication number
KR960043923A
KR960043923A KR1019950013030A KR19950013030A KR960043923A KR 960043923 A KR960043923 A KR 960043923A KR 1019950013030 A KR1019950013030 A KR 1019950013030A KR 19950013030 A KR19950013030 A KR 19950013030A KR 960043923 A KR960043923 A KR 960043923A
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KR
South Korea
Prior art keywords
light
image display
green
blue
red
Prior art date
Application number
KR1019950013030A
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Korean (ko)
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KR0179105B1 (en
Inventor
김영운
Original Assignee
구자홍
Lg 전자 주식회사
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Priority to KR1019950013030A priority Critical patent/KR0179105B1/en
Publication of KR960043923A publication Critical patent/KR960043923A/en
Application granted granted Critical
Publication of KR0179105B1 publication Critical patent/KR0179105B1/en

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    • 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
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • 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
    • G02B27/10—Beam splitting or combining systems
    • 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
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources

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

Abstract

본 발명은 단판식 엘시디 프로젝터에 관한 것으로서, 칼라펄터를 사용하지 않고도 칼라가 구현되도록 구조를 변경하여 광효율이 증대되도록 함에 따라 스크린에 결상되는 영상이 깨끗해 지도록 함과 함께 가시광선인 백색 광의 R, G, B 3색이 각각 일정 주기를 갖고 액정판넬을 통과하도록 함에 따라 상기 액정판넬의 온도가 어려움 없이 60도 이하로 유지도록 한 것이다.The present invention relates to a single-panel LCD projector, which changes the structure to realize color without using a color pulp, thereby increasing light efficiency, thereby making the image formed on the screen clear and R, G, and white light visible. As the three B colors pass through the liquid crystal panel at regular intervals, the temperature of the liquid crystal panel is maintained at 60 degrees or less without difficulty.

이를 위해 본 발명은 본체 내에 설치되어 빛을 발생시키는 램프, 상기 램프에서 발생된 빛중의 가시광선을 적, 녹, 청색의 3색광으로 각각 분리하는 색분리수단, 상기 색분리수단에 의해 분리된 각 색광을 시차를 두고 순차적으로 받아 영상을 디스플레이시키는 화상표시부, 상기 화상표시부에 디스플레이된 영상을 확대 투영하는 투사렌즈로 구성하여서 된 것이다.To this end, the present invention is installed in the main body to generate light, color separation means for separating the visible light in the light generated by the lamp into three colors of red, green, blue, respectively, each separated by the color separation means The image display unit sequentially receives color light at a parallax and displays an image, and a projection lens that enlarges and projects the image displayed on the image display unit.

Description

단판식 엘시디 프로젝터(LCD Projector)Single LCD LCD Projector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명 단판식 엘시디 프로젝터의 광학계 구성을 나타낸 일 실시예, 제4도는 본 발명 단판식 엘시디 프로젝터의 광학계 구성을 나타낸 다른 실시예, 제5도는 본 발명 단판식 엘시디 프로젝터의 광학계 구성을 나타낸 또다른 실시예.Figure 3 is an embodiment showing the optical system configuration of the present invention, the single-panel LCD projector, Figure 4 is another embodiment showing the optical system configuration of the present invention, the single-panel LCD projector, Figure 5 shows the optical system configuration of the present invention single-panel LCD projector Another embodiment.

Claims (4)

본체 내에 설치되어 빛을 발생시키는 램프, 상기 램프에서 발생된 빛중의 가시광선을 적, 녹, 청색의 3색광으로 각각 분리하는 색분리수단, 상기 색분리수단에 의해 분리된 각 색광을 시차를 두고 순차적으로 받아 영상을 디스플레이시키는 화상표시부, 상기 화상표시부에 디스플레이된 영상을 확대 투영하는 투사렌즈로 구성하여서 됨을 특징으로 하는 단판식 엘시디 프로젝터.Lamps installed in the main body to generate light, color separation means for separating the visible light from the light generated by the lamp into three colors of red, green, and blue, respectively, and the color light separated by the color separation means And an image display unit configured to sequentially receive and display an image, and a projection lens configured to enlarge and project the image displayed on the image display unit. 제1항에 있어서, 색분리수단은 광원의 광경로상에 고정되어 가시광선중 적색광만 화상표시부로 반사시키는 적색반사용 밀러와, 상기 광원의 광경로상에 고정되어 가시광선중 녹색광만 화상표시부로 반사시키는 녹색 반사용 밀러와, 상기 광원의 광경로상에 고정되어 가시광선중 청색광만 화상표시부로 반사시키는 청색반사용 밀러와, 닫힌상태에서 상기 화상표시부로 반사되는 적색광을 차단하다가 주기적으로 열리면서 차단을 해제하는 적색차단용 셔터와, 닫힌상태에서 상기 화상표시부터 반사되는 녹색광을 차단하다가 주기적으로 열리면서 차단을 해제하는 녹색차단용 셔터와, 닫힌상태에서 상기 화상표시부로 반사되는 청색광을 차단하다가 주기적으로 열리면서 차단을 해제하는 청색차단용 셔터와, 상기 각 셔터의 열리고 닫힘을 제어하는 셔터콘트롤부로 구성하여 상기 셔터콘트롤부의 제어신호에 의해 각 셔터가 열리고 닫힘에 따라 상기 각 밀러에 의해 반사된 3색광이 시차를 두고 순차적으로 화상표시부에 입사되도록 함을 특징으로 하는 단판식 엘시디 프로젝터.2. The display apparatus according to claim 1, wherein the color separation means comprises a red reflecting mirror which is fixed on the optical path of the light source and reflects only red light of the visible light to the image display part, and only the green light of the visible light is fixed on the optical path of the light source. The green reflecting mirror reflecting the light into the image path, the blue reflecting mirror fixed on the light path of the light source to reflect only the blue light in the visible light to the image display unit, and the red light reflected from the image display unit in the closed state and periodically opened. A red blocking shutter for releasing the block, a green blocking shutter for blocking green light reflected from the image display in a closed state and being periodically opened to release the blocking, and a blue light reflected from the image display unit in a closed state and periodically A blue blocking shutter which opens and releases a block, and controls the opening and closing of each shutter. Emitter and composed of a control that each shutter is opened by the shutter control unit control signal is the third color light reflected by the respective mirror in accordance with the closed with a time lag single-panel LCD projector, characterized in that the to be incident on the image display in sequence. 제1항에 있어서, 색분리수단은 광원의 광경로상에 회동가능하게 설치되어 가시광선중 적색광만 반사시키는 적색반사용 밀러와, 상기 광원의 광경로상에 회동가능하게 설치되어 가시광선중 녹색광만 반사시키는 녹색 반사용 밀러와, 상기 광원의 광경로상에 회동가능하게 설치되어 가시광선중 청색광만 반사시키는 청색반사용 밀러와, 상기 각 밀러의 회동을 제어하는 밀러콘트롤부로 구성하여 상기 밀러콘트롤부의 제어신호에 의해 각 밀러가 선택적으로 회동함에 따라 상기 각 밀러에서 반사된 3색광이 시차를 두고 순차적으로 화상표시부에 입사되도록 함을 특징으로 하는 단판식 엘시디 프로젝터.2. The method of claim 1, wherein the color separation means is a red reflector mirror which is rotatably installed on the optical path of the light source and reflects only red light of the visible light, and green light of the visible light is rotatably installed on the optical path of the light source. The Miller control comprises a green reflecting mirror reflecting only the light, a blue reflecting mirror rotatably installed on the optical path of the light source and reflecting only blue light in visible light, and a Miller control unit for controlling the rotation of each mirror. And a three-color light reflected from each miller sequentially enters the image display unit with a parallax as each miller selectively rotates by a negative control signal. 제1항에 있어서, 색분리수단은 광원의 광경로상에 설치되어 가시광선중 적색광만 반사시키는 복수개의 적색 DMD 단위편으로 이루어진 적색반사용 밀러와, 상기 광원의 광경로상에 설치되어 가시광선중 녹색광만 반사시키는 복수개의 녹색 DMD 단위편으로 이루어진 녹색반사용 밀러와, 상기 광원의 광경로상에 설치되어 가시광선중 청색광만 반사시키는 복수개의 청색 DMD 단위편으로 이루어진 청색반사용 밀러와, 상기 각 DMD 단위편의 위치변형을 제어하는 단위편콘트롤부로 구성하여 상기 단위편콘트롤부의 제어신호에 의해 각 밀러를 이루는 DMD 단위편의 위치가 선택적으로 변화됨에 따라 상기 각 DMD 단위편에서 반사된 3색광이 시차를 두고 순차적으로 화상표시부에 입사되도록 함을 특징으로 하는 단판식 엘시디 프로젝터.The method of claim 1, wherein the color separation means is provided on the optical path of the light source is a red reflective mirror consisting of a plurality of red DMD unit pieces reflecting only the red light of the visible light, and the visible light is installed on the optical path of the light source A green reflection mirror comprising a plurality of green DMD unit pieces reflecting only green light, a blue reflection mirror made up of a plurality of blue DMD unit pieces installed on a light path of the light source to reflect only blue light of visible light, and The three-colored light reflected from each DMD unit piece is parallax as the position of the DMD unit piece forming each Miller is selectively changed by the unit piece control unit which controls the position deformation of each DMD unit piece. Single-sided LCD projector characterized in that to be sequentially entered to the image display unit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950013030A 1995-05-24 1995-05-24 Lcd projector KR0179105B1 (en)

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KR1019950013030A KR0179105B1 (en) 1995-05-24 1995-05-24 Lcd projector

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Application Number Priority Date Filing Date Title
KR1019950013030A KR0179105B1 (en) 1995-05-24 1995-05-24 Lcd projector

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KR960043923A true KR960043923A (en) 1996-12-23
KR0179105B1 KR0179105B1 (en) 1999-05-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459176B1 (en) * 2001-12-21 2004-12-03 엘지전자 주식회사 Liquid Crystal On Silicon display of one panel type and driving method of the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459176B1 (en) * 2001-12-21 2004-12-03 엘지전자 주식회사 Liquid Crystal On Silicon display of one panel type and driving method of the same

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Publication number Publication date
KR0179105B1 (en) 1999-05-01

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