KR960705459A - 개선된 스캐닝 능력을 갖는 단일 패널 칼라 이미지 프로젝션 시스템(Single panel color image projection system having improved scanning) - Google Patents

개선된 스캐닝 능력을 갖는 단일 패널 칼라 이미지 프로젝션 시스템(Single panel color image projection system having improved scanning) Download PDF

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KR960705459A
KR960705459A KR1019960701448A KR19960701448A KR960705459A KR 960705459 A KR960705459 A KR 960705459A KR 1019960701448 A KR1019960701448 A KR 1019960701448A KR 19960701448 A KR19960701448 A KR 19960701448A KR 960705459 A KR960705459 A KR 960705459A
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color
bands
band
light
display system
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멜니크 죠지
얀센 피터
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요트.게.아. 롤페즈
필립스 일렉트로닉스 엔.브이.
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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]
    • H04N9/3102—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
    • H04N9/3117—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 by using a sequential colour filter producing two or more colours simultaneously, e.g. by creating scrolling colour bands
    • 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
    • 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
    • G02B26/10—Scanning systems
    • G02B26/108—Scanning systems having one or more prisms as scanning elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235—Field-sequential colour display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Projection Apparatus (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

백색 광원(light source)이 중간에 검은 밴드(211,214,218)를 갖고, 적색, 녹색, 청색 밴드(212,216,220)들로 분리 되어지는 칼라 비데오 프로젝션 비데오 시스템, 스캐닝 광학은 칼라 밴드들이 전송 LCD 패널과 같은 광 밸브에서 연속적으로 스캔이 되어지도록 한다. 광 밸브 위의 광 패널 중 한 열(row)위를 각 칼라가 지나가기전에, 그 열은 디스플레이 되어지는 이미지의 그 부분이 갖고 있는 적당한 칼라 내용과 함께 디스플레이 장치에 의해 어드레스 되어질 것이다. 패널의 그 이미지는 프로젝션 렌즈에 의해, 스크린과 같은 표면에 프로젝트 되어진다. 어떤 형태의 광 밸브들과 함께 사용되어 졌을 때, 그 시스템의 칼라 순도를 최적화시키기 위해, 세 칼라 사이의 구간들(dR,dG,dB)은 조정이 되어지며, 각 칼라에 대한 LCD 패널의 다른 응답 시간에 맞추어 정해진다. 게다가 칼라 균형은 다른 것과 비교된 각 칼라 밴드의 상대적 크기를 변화시킴으로써 조정이 되어질 수 있다.

Description

개선된 스캐닝 능력을 갖는 단일 패널 칼라 이미지 프로젝션 시스템(Single panel color image projection system having improved scanning)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 단일 패널 칼라 프로젝션 시스템중 광 시스템의 측면도,
제2도는 이 시스템의 칼라 분자와 스캐닝 메카니즘을 도시한 측면 개략도,
제3도는 광 밸브의 드라이버(driver) 도면,
제4도는 광 밸브를 구동하기 위한 비데오 신호의 처리 과정을 도시한 도면,
제5도와 제6도는 개선된 스캔의 균일성을 제공하는 시스템의 정면도와 측면도,
제7도는 제5도와 제6도의 스캐닝 시스템의 평면도이며, 디크로익 미러의 입력 시스템과 출력 수정 렌즈를 보여주고 있다,
제8도와 제9도는 스캐닝 프리즘의 다른 실시예를 도시한 도면,
재10도와 4개, 6개, 8개의 면을 가진 프리즘에 대한 비선형을 스캐닝하는 도면,
제11도는 제5∼7도의 스캐닝 배열에 의한 광 밸브의 표면에 걸쳐 있는 여러가지 칼라 밴드들의 이동을 도시한 도면,
제12a도와 제12b도는 본 발명에 따라 각기 틀린 칼라 구간을 제공하는 프리즘의 측면과 정면도를 도시한 도면,
제13도는 제12a도와 제12b도의 스캐닝 구조에 의해 광 밸브의 표면에 걸쳐 있는 여러가지 칼라 밴드의 이동을 도시한 도면,
제14도는 정해진 구간을 갖고 있는 칼라 밴드를 스캐닝하는 제2의 수단을 도시한 도면,
제15도는 제14도의 스캐닝 구조중 구동기(actuator)에 대한 시간과 전압을 도시한 도면,
제16도는 비동축으로 배열된 프리즘을 이용하고 정해진 칼라 구간을 제공하는 또 다른 스캐닝 구조를 도시한 도면.

Claims (12)

  1. 검은 밴드에 의해 각각 분리되어 있는 제1, 제2, 제3의 광 칼라 밴드들의 소스와, 입사하는 빛을 입력 비데오 신호에 따라 변조시키는 한 개의 광 밸브와, 상기 광 밸브 수단에 동시에 존재하는 상기 광 밴드를 상기 광 밸브를 가로질러 순차적으로 이동시키는 수단과, 상기 입력 비데오 신호를 광 밴드들의 빛을 변조시키기 위해 입사하는 광 밴드의 색깔에 대응하여 이미지 정보를 갖고 있는 상기 광 밸브 수단의 부분들을 어드레싱 시키는 수단과, 가시 표면상에 변조된 광 밴드를 프로젝션시키는 수단을 포함하는 칼라 이미지 프로젝션 시스템에 있어서, 상기 이동 수단은, 제1, 제2, 제3의 칼라 밴드중 적어도 한 개 사이의 검은 밴드는 다른 것의 검은 밴드와는 크기면에서 다르도록 하는 수단을 포함하고 있는 것을 특징으로 하는 칼라 이미지 프로젝션 시스템.
  2. 제1항에 있어서, 상기 광 밴드를 이동하는 상기 수단은 적어도 한 개의 네면을 가진 회전 프리즘으로 구성되어 있는 디스플레이 시스템.
  3. 제1항에 있어서, 상기 광 밴드를 이동시키는 수단은 상기 제1, 제2, 제3의 칼라 밴드들을 위한 제1, 제2, 제3의 프리즘들로 구성되어 있으며, 상기 프리즘들은 공동 축을 중심으로 회전하며, 서로에 대해서 위상이 조절되어지며, 상기 각각의 프리즘간의 위상 각도들이 서로 다른 디스플레이 시스템.
  4. 제3항에 있어서, 상기 프리즘들은 4면을 가진 프리즘들로 구성되어 있으며, 제1프리즘은 제2프리즘에 대해 20°의 위상각에 위치하고 있으며, 제3프리즘은 제2프리즘에 대해 40˚의 위상각에 위치하고 있는 디스플레이 시스템.
  5. 제1항에 있어서, 상기 광 밴드들을 이동시키는 수단은 제1, 제2, 제3의 독립적으로 회전가능한 미러들과 상기 광밸브 수단에 나타난 상기 제1, 제2, 제3의 칼라를 스캔하기 위해서 서로에 대해서 다른 시간 구간에서 상기 미러를 구동시키는 수단으로 구성되어 있는 디스플레이 시스템.
  6. 제5항에 있어서, 상기 독립적으로 회전 가능한 미러들은 상기 미러 구동 수단에 의해 구동된 압전 구동기에 의해 동작되어지는 디스플레이 시스템.
  7. 제5항에 있어서, 상기 회전가능한 미러들은 디크로익 미러들로 구성되어 있는 디스플레이 시스템.
  8. 제1항 내지 7항 중 어느 한 항에 있어서, 상기 제1, 제2, 제3의 광 칼라 밴드는 적색, 녹색, 청색 밴드들로 구성되어 있는 디스플레이 시스템.
  9. 제8항에 있어서, 적색 밴드의 각 면에 있는 검은 밴드들이 가장 큰 디스플레이 시스템.
  10. 제1항 내지 9항 중 어느 한 항에 있어서, 다른 밴드들에 대해서 상기 제1, 제2, 제3의 칼라 밴드의 이동 속도를 변환시키는 수단을 추가로 포함하는 디스플레이 시스템.
  11. 제1항 내지 9항 중 어느 한 항에 있어서, 칼라 균형을 조정하기 위해 서로에 대해 상기 제1, 제2, 제3의 칼라 밴드 중 한개의 크기를 변화시키는 수단을 추가로 포함하는 디스플레이 시스템.
  12. 제11항에 있어서, 상기 칼라 밴드의 크기를 변화시키는 상기 수단은 압전 구동기에 의해 구동되는 독립적으로 회전 가능한 미러들로 구성되어 있는 디스플레이 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960701448A 1994-07-21 1995-07-05 개선된스캐닝능력을갖는단일패널칼라영상투영시스템 KR100354197B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US278366 1994-07-21
US08/278,366 US5548347A (en) 1990-12-27 1994-07-21 Single panel color projection video display having improved scanning
US278,366 1994-07-21
PCT/IB1995/000540 WO1996003842A1 (en) 1994-07-21 1995-07-05 Single panel color image projection system having improved scanning

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KR960705459A true KR960705459A (ko) 1996-10-09
KR100354197B1 KR100354197B1 (ko) 2002-12-28

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US (1) US5548347A (ko)
EP (1) EP0720802B1 (ko)
JP (1) JP3280984B2 (ko)
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DE (1) DE69519220T2 (ko)
WO (1) WO1996003842A1 (ko)

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US5548347A (en) 1996-08-20
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EP0720802B1 (en) 2000-10-25
KR100354197B1 (ko) 2002-12-28
WO1996003842A1 (en) 1996-02-08
DE69519220T2 (de) 2001-05-17
JPH09512648A (ja) 1997-12-16
JP3280984B2 (ja) 2002-05-13

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