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KR0129208B1 - 3-panel stereoscopic LCD projector - Google Patents

3-panel stereoscopic LCD projector

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Publication number
KR0129208B1
KR0129208B1 KR1019890010188A KR890010188A KR0129208B1 KR 0129208 B1 KR0129208 B1 KR 0129208B1 KR 1019890010188 A KR1019890010188 A KR 1019890010188A KR 890010188 A KR890010188 A KR 890010188A KR 0129208 B1 KR0129208 B1 KR 0129208B1
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KR
South Korea
Prior art keywords
mirror
lcd
straight line
separator
light
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KR1019890010188A
Other languages
Korean (ko)
Other versions
KR910004055A (en
Inventor
박홍철
Original Assignee
구자홍
엘지전자주식회사
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Priority to KR1019890010188A priority Critical patent/KR0129208B1/en
Publication of KR910004055A publication Critical patent/KR910004055A/en
Application granted granted Critical
Publication of KR0129208B1 publication Critical patent/KR0129208B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/363—Image reproducers using image projection screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Liquid Crystal (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

내용없음.None.

Description

3패널 입체용 LCD 프로젝터3-panel stereoscopic LCD projector

제1도는 본 발명에 의한 입체용 LCD 프로젝터의 구성도.1 is a block diagram of a three-dimensional LCD projector according to the present invention.

제2도는 본 발명의 각 빔세퍼레이터의 분광투과 특성도.2 is a spectral transmission characteristic diagram of each beam separator of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 백미러 2 : 램프1: rearview mirror 2: lamp

3 : 콘덴서렌즈 4,5,6,9,10 : 빔세퍼레이터3: condenser lens 4,5,6,9,10: beam separator

7,8,11,12 : 미러 13,14,15,16,17,18 : LCD7,8,11,12: Mirror 13,14,15,16,17,18: LCD

19,20,21 : 빔합성부19,20,21: beam synthesis unit

본 발명은 LCD프로젝터에 관한 것으로, 특히 고해상도와 입체 디스플레이를 함께 유지하도록 한 이중 3-패널의 입체용 LCD프로젝터에 관한 것이다.The present invention relates to an LCD projector, and more particularly, to a dual three-panel stereoscopic LCD projector for maintaining a high resolution and a stereoscopic display together.

본 발명에 의한 입체용 LCD프로젝터는 LCD페널에 디스플레이 되는 비디오 영상을 LCD패널의 후방으로부터 조명하고 프로젝터 렌즈로써 스크린위에 결상하여 프로젝션 TV의 동작을 하는 구성에 있어서, 입체영상을 얻을 수 있도록 하기 위하여 좌, 우측의 영상시스템에 각각 3매씩의 LCD패널을 사용하고 좌,우측용 LCD패널의 편광투과의 방향이 서로 직작을 이루도록하며 좌,우 각각의 LCD패널 3장으로부터 투과되어 다른 편광미러로써 좌,우의 빛이 모두 합성되도록 하며 최종적으로 이 합성된 빛을 프로젝션 렌즈로 받아서 스크린에 투영하도록 구성된다.The stereoscopic LCD projector according to the present invention illuminates the video image displayed on the LCD panel from the rear of the LCD panel and forms an image on the screen with a projector lens to operate the projection TV. 3 LCD panels are used for the image system on the right side, and the polarization transmission directions of the left and right LCD panels are directly made to each other. All the light from the right is synthesized, and finally the synthesized light is received by the projection lens and configured to project on the screen.

또한, 본 발명은 오목형 백미러, 콘덴서 등을 거쳐서 램프로부터 방사되는 빛을 분리시키어 좌,우측 시스템으로 양방향 조명을 실시하고, 콘덴서 렌즈 직후에 설치되는 빔스프리터로서 편광방향에 따라 분광특성이 서로다른 다수개의 미러를 사용하며, 분광조명을 위하여 복수개의 100%미러와 복수개의 다이크로익 미러를 콘덴서렌즈와 LCD패널 사이에 설치한다.In addition, the present invention separates the light emitted from the lamp via a concave rearview mirror, a condenser, etc., and performs bidirectional illumination with the left and right systems, and is a beam splitter installed immediately after the condenser lens, and has different spectral characteristics depending on the polarization direction. A plurality of mirrors are used, and a plurality of 100% mirrors and a plurality of dichroic mirrors are installed between the condenser lens and the LCD panel for spectral lighting.

이하, 상기한 바와 같은 본 발명은 첨부한 도면에 일실시예를 들어 상세히 설명하면 다음과 같다.Hereinafter, the present invention as described above will be described in detail with reference to an embodiment in the accompanying drawings.

제1도는 본 발명에 의한 입체용 LCD프로젝터의 구성을 보인 것이고, 제2도(a)(b)(c)(d)(e)는 본 발명의 각 빔세퍼레이터 즉, 후술하는 빔세페레이터(4)(5)(6)(9)(10)의 분광투과 특성을 보인 그래프로서 이에 도시한 바와 같이, 오목형 백미러(1)과 콘덴서렌즈(3)사이에 램프(2)가 재치되는 조명부가 구비되고, 그 조명부와 빔세페레이터(4)(5)(6) 및 미러(7)가 O-X선상 X1 ~ X4위치에 매치되어 있으며, X1에서 Y방향 직선경로 Y2,Y3위치에 빔세퍼레이터(10)과 미러(11)이 배치되고, X2에서 Y방향 직선경로 Y1, Y2, Y3위치에 빔세퍼레이터(9)와 빔합성부(20) 및 미러(12)가 배치되고, X3에서 Y방향 직선경로 Y1, Y2위치에 빔합성부(19)(21)이 배치되고 X4에서 Y방향 직선경로에 미러(8)이 배치되어 있으며, 또 상기 미러(11)(12)는 Y3위치에서 X방향 직선경로에 배치되고 상기 빔세퍼레이터(10), 빔합성부(20)(21) 및 프로젝션렌즈(22)는 Y2위치에서 X방향 직선경로에 배치되며, 상기 빔세퍼레이터(9), 빔합성부(19) 및 미러(8)는 Y1 위치에서 X 방향 직선경로에 배치되어 있다.FIG. 1 shows the configuration of a three-dimensional LCD projector according to the present invention, and FIG. 2 (a) (b) (c) (d) (e) shows the beam separators of the present invention, that is, beam separators described later ( 4) A graph showing spectral transmission characteristics of (5), (6), (9), and (10), and as shown therein, an illumination unit in which a lamp (2) is placed between the concave rearview mirror (1) and the condenser lens (3). The lighting unit and the beam separator (4) (5) (6) and the mirror 7 are matched to the positions X1 to X4 on the OX line, and the beam separators are positioned at the linear paths Y2 and Y3 in the X1 direction. 10) and the mirror 11, and the beam separator 9, the beam combining unit 20, and the mirror 12 are disposed at the linear paths Y1, Y2, and Y3 in the Y direction at X2, and the linear direction in the Y direction at X3. Beam combining portions 19 and 21 are disposed at the paths Y1 and Y2, and mirrors 8 are arranged at the straight line in the Y direction at X4, and the mirrors 11 and 12 are in the X direction at the Y3 position. The beam separator 10 and a beam disposed in a path The voice parts 20 and 21 and the projection lens 22 are disposed in the X-direction straight path at the Y2 position, and the beam separator 9, the beam combining unit 19 and the mirror 8 are the X-direction straight lines at the Y1 position. It is placed in the path.

그리고, 상기 빔합성부(19)의 주위에는 상기 빔세퍼레이터(9), 빔세퍼레이터(6) 및 미러(8)로부터 빛이 입사되는 LCD(13)(14)(15)가 배치되고, 상기 빔합성부(20)의 주위에는 상기 빔세퍼레이터(9)(10) 및 미러(12)로부터 및이 입사되는 LCD(16)(17)(18)이 배치되어 있다.In addition, LCD beams 13, 14, and 15 through which light is incident from the beam separator 9, the beam separator 6, and the mirror 8 are disposed around the beam combiner 19. In the periphery of the combining section 20, LCDs 16, 17 and 18, to which and from the beam separators 9 and 10 and the mirror 12 are incident, are arranged.

이러한 본 발명의 LCD프러젝터는 입체 디스플레이 시스템을 위하여 좌,우측 디스플레이 시스템을 구비하여 좌측 시스템은 LCD(16)(17)(18)에 나타나는 이미지를, 우측시스템은 LCD(13)(14)(15)에 나타나는 이미지를 디스플레이하도록 구성하였으며, 각각의 시스템에는 고해상도를 유지하기 위하여 R,G,B TV시그널을 디스플레이하는 3매의 LCD패널이 포함되어 있다. 한편 좌,우측 시스템에 의해 최종적으로 스크린 위에 투영된 좌, 우측 이미지는 시청자의 좌,우측 눈이 각각 분리하여 볼 수 있도록 하기 위하여 LCD(16)(17)(18)은 P폴라리제이션(P-polarization)(이하, P-pol)이라 함)을, LCD(13)(14)(15)는 S-폴라리레이션(S-polarization 이하 S-pol이라 함)을, 최종적으로 투과시키도록 LCD패널의 편광필터를 부착한 것이다.The LCD projector of the present invention includes a left and a right display system for a stereoscopic display system so that the left system displays an image displayed on the LCD 16, 17, 18, and the right system displays an LCD 13, 14 ( It is configured to display the image shown in 15), and each system includes three LCD panels displaying R, G, and B TV signals to maintain high resolution. On the other hand, the left and right images projected on the screen by the left and right systems are separated by the LCD 16, 17, and 18 so that the viewer's left and right eyes can be separated and viewed. -polarization (hereinafter referred to as P-pol), and the LCD 13, 14, 15 to transmit the S-polarization (hereinafter referred to as S-polation). The polarizing filter of the panel is attached.

상기 구성에서 백미러(1)과 콘덴서렌즈(3)은 램프(2)에서 방사되는 빛의 좀더 많은 량이 시스템에 입사될수 있도록 한 것이다.In this configuration, the rearview mirror 1 and the condenser lens 3 allow a greater amount of light emitted from the lamp 2 to enter the system.

상기 미러 (7)(8)(11)(12)는 100%반사미러로서 각 미러에 입사되는 빛을 모두 반사한다.The mirrors (7) (8) (11) (12) are 100% reflecting mirrors and reflect all the light incident on each mirror.

상기 빔합성부(beam synthesis part)(19)(20)은 LCD(13-15),(16-18)로부터 투과되어 나오는 이미지의R,G,B칼라를 합성하여 빔합성부(21)로 보내는 디크로익 프리즘(dichroic prism)으로서 4개의 직각삼각기둥형 프리즘의 집합체이다.The beam synthesis part 19 and 20 synthesize the R, G, and B colors of the image transmitted from the LCDs 13-15 and 16-18 to the beam synthesis part 21. Outgoing dichroic prism, a collection of four right-angled triangular prisms.

상기 빔함성부(21)는 빔합성부(20)(19)에서 칼라합성된 S, P-pol빛을 합성하여 프로젝션렌즈(22)로 보내는 역할을 하도록 프리즘의 반사면은 빔합성부(19)에서 나오는 S-pol빛은 반사하고, 빔합성부(20)에서 나오는 P-pol빛은 투과하는 특성을 갖도록 제작한다.The beam combiner 21 combines the color synthesized S and P-pol light from the beam combiner 20 and 19 to the projection lens 22 so that the reflective surface of the prism is the beam combiner 19. S-pol light emitted from) is reflected, and the P-pol light emitted from the beam synthesis unit 20 is manufactured to have a transmission property.

상기 프로젝션렌즈(22)는 빔합성부(19)(20)(21)에 의해 합성된 빛을 받아서 스크린위에 투영시키는 역할을 하는데 LCD 패널면과 스크린면이 콘주게이션 페어(conjugation pair)를 형성하도록 구성된다.The projection lens 22 receives the light synthesized by the beam combining units 19, 20 and 21 and projects the light onto the screen so that the LCD panel surface and the screen surface form a conjugation pair. It is composed.

상기 빔세퍼레이터(4)(5)(6)(9)(10)는 빔세퍼레이터(4)에서 P-polG, P-polR을 반사하고, 빔세퍼레이터(5)에서 P-polB, S-polB를 반사하고 빔세퍼레이터(6)세거 S-polG를 반사하고, 빔세퍼레이터(9)에서 S-polB를 반사하고, 빔세퍼레이터(10)에서 P-polG를 반사하도록 미러를 코팅하여 사용하며, 종래 원 패널형(one panel tyre) LCD는 각 화소마다 R, G, B를 각각 코팅하여 사용하여 흰벽에 비추면 R,G,B가 뚜렷이 나타나나, 본 발명에 의한 쓰리 패널형 LCD는 하나의 화소에서 모든 색이 나타나도록 형성한다.The beam separators 4, 5, 6, 9, and 10 reflect P-polG and P-polR in the beam separator 4, and P-polB and S-polB in the beam separator 5 Reflects and reflects the S-polG beam separator (6), reflects the S-polB in the beam separator (9), and uses a mirror coating to reflect the P-polG in the beam separator (10). In one-panel LCD, R, G, and B are coated on each pixel, and then R, G, and B appear clearly on the white wall. Form to show color.

상기와 같이된 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention as described above are as follows.

조명부에서 빛이 발광되면 빔세퍼레이터(4)는 P-polG,R을 반사형 빔세퍼레이터(10)쪽으로 보내고, 빔세퍼레이터(5)는 P,S-pol의B를 반사하여 빔세퍼레이터(9)에 보내며, 빔세퍼레이터(6)은 S-pol의 G를 반사하여 LCD(14)에 보내고, 미러(7)(8)은 빔세퍼레이터(6)를 통과하여 나오는 S-pol의 R을 반사하여LCD(15)쪽으로 보내며, 빔세퍼레이터(9)는 S-pol의 B를 반사하여 LCD(13)쪽으로 보내고, 투과된 P-pol의 B를 LCD(16)쪽으로 보내며, 빔세퍼레이터(10)은 P-pol의 G를 반사하여 LCD(17)쪽으로 보내고, 미러(11)(12)는 빔세퍼레이터(10)을 통과하여 오는 P-pol의 R을 LCD(18)쪽으로 보낸다.When light is emitted from the lighting unit, the beam separator 4 sends P-polG and R to the reflective beam separator 10, and the beam separator 5 reflects B of P and S-pol to the beam separator 9. The beam separator 6 reflects the G of the S-pol and sends it to the LCD 14, and the mirrors 7 and 8 reflect the R of the S-pol that passes through the beam separator 6 to display the LCD ( 15), the beam separator 9 reflects the B of S-pol to the LCD 13, sends the transmitted B of B to the LCD 16, and the beam separator 10 to the P-pol. Reflects G to the LCD 17, and the mirrors 11 and 12 send R of the P-pol coming through the beam separator 10 to the LCD 18.

LCD(13)(14)(15)는 우측 영상신호의 B,G,R신호를 받아서 그에 해당하는 TV이미지를 패널위에 디스플레이하고, LCD(16)(17)(18)은 좌측 영상신호의 B,G,R신호를 받아서 그에 해당하는 TV이미지를 판넬위에 디스플레이하며 이 영상의 형태로 빛의 투과를 콘트롤한다.The LCD 13, 14 and 15 receive the B, G and R signals of the right video signal and display corresponding TV images on the panel, and the LCD 16, 17 and 18 display the B of the left video signal. It receives G, R signal and displays corresponding TV image on the panel and controls the transmission of light in the form of this image.

빔합성부(19)는 LCD(13)(14)(15)로부터 투과되어 나오는 우측 이미지의 R,G,B칼라를 합성하여 빔합성부(21)에 보내고 빔합성부(20)은 LCD(16)(17)(18)으로부터 나오는 좌측 이미지의 R,B,G칼라를 합성하여 빔합성부(21)에 보내고 빔합성부(21)는 빔합성부(19)(20)로부터 칼라합성되어 나오는 S, P-pol빛을 합성하여 프로젝션렌즈(22)에 보낸다.The beam combining unit 19 synthesizes the R, G, and B colors of the right image transmitted from the LCD 13, 14, 15 to the beam combining unit 21 and sends the beam combining unit 20 to the LCD ( 16) The R, B, and G colors of the left image from the 17, 18 are synthesized and sent to the beam combining unit 21, and the beam combining unit 21 is color synthesized from the beam combining unit 19, 20. S, P-pol light coming out is synthesized and sent to the projection lens 22.

프로젝션렌즈(22) 빔합성부(19)(20)(21)에 의해 합성된 빛을 받아서 스크린 위에 투영시킨다.The light synthesized by the projection lens 22, the beam combiner 19, 20 and 21 is received and projected onto the screen.

이상에서 설명한 바와 같은 본 발명의 입체용 LCD프로젝터는 입체영상을 얻을 수 있도록 조명부에서 발광된 빛을 분광, 투과시키기 위한 다수개의 빔세퍼레이터를 사용함과 아울러 좌, 우측 영상시스템에 각각 3매씩의 LCD패널을 사용하고, 상기 좌, 우측 LCD패널의 편광투과 방향이 서로 직각을 이루도록 하며, 좌, 우측 영상시스템의 각 3매의 LCD로부터 투과되어 나오는 R, G, B 빛을 칼라합성한 후 편광에 따라 반사율이 다른 편광미러로써 좌, 우 시스템의 빛이 모두 합성되어 프로젝션 렌즈를 통하여 스크린에 결상되도록 한 것이므로 고해상도와 입체 디스플레이를 함께 유지 할 수 있다.As described above, the three-dimensional LCD projector of the present invention uses a plurality of beam separators for spectroscopically transmitting and transmitting the light emitted from the illumination unit so as to obtain a three-dimensional image and three LCD panels each for the left and right image systems. The polarization transmission directions of the left and right LCD panels are perpendicular to each other, and R, G, and B light transmitted from each of the three LCDs of the left and right image systems are color synthesized, and then It is a polarization mirror with different reflectivity, so that the light of left and right systems are synthesized and formed on the screen through the projection lens, so that high resolution and stereoscopic display can be maintained together.

Claims (1)

백미러(1)과, 램프(2) 및 콘덴서 렌즈(3)로 이루어진 조명부와, 그와 동일적선상 X방향으로 X1 ∼ X3위치에 배치되고 편광방향에 따라 분광투과 특성이 서로다른 빔세퍼레이터(4)(5)(6)과, 그들과 동일직선상 X4위치에 배치되는 미러(7)과, X1에서 Y방향 직선상에 Y2, Y3위치에 배치되는 빔세퍼레이터(10) 및 미러(11)와, X2에서 Y방향 직선상 Y1, Y2, Y3위치에 설치되는 빔세퍼레이터(9), 빔합성부(20) 및 미러(12)와, X3에서 Y방향 직선상 Y1, Y2에 배치되는 빔합성부(19)(21)와, X4에서 Y방향 직선상 Y1위치에 배치되는 미러(8)와, 상기 빔합성부(21)와 동일직선상에 배치되는 프로젝션렌즈(22)와,빔합성부(19)주위에 상기 빔세퍼레이터(9)(6) 및 미러(8)로부터 빛이 입사되도록 배치되는 LCD(13)(14)(15)와, 상기 빔합성부(20)의 주위에 상기 빔세퍼레이터(9)(10) 및 미러(12)로 부터 빛이 입사되는 LCD(16)(17)(18)로 구성됨을 특징으로 하는 3패널 입체용 LCD프로젝터.An illumination unit consisting of a rearview mirror 1, a lamp 2 and a condenser lens 3, and a beam separator 4 arranged at X1 to X3 positions in the same parallel X direction and having different spectral transmission characteristics according to the polarization direction. (5) (6), the mirror (7) arranged at the same linear X4 position as those, the beam separator (10) and the mirror (11) arranged at the positions Y2, Y3 on a straight line in the Y-direction at X1, Beam separator 9, beam combining portion 20 and mirror 12 provided at Y1, Y2 and Y3 in the Y-direction straight line at X2, and beam combining portion arranged at Y1 and Y2 in Y-direction straight line at X3. (19) (21), the mirror (8) arranged at a straight line Y1 in the X-direction at X4, the projection lens (22) arranged in the same straight line as the beam combining section (21), and the beam combining section ( 19, LCDs 13, 14 and 15 arranged to allow light to enter from the beam separators 9 and 6 and the mirrors 8 and the beam separators around the beam combining unit 20. (9) (10) and light from the mirror 12 is incident Is a three-panel LCD projector for three-dimensional, characterized by consisting of a LCD (16) (17) (18).
KR1019890010188A 1989-07-18 1989-07-18 3-panel stereoscopic LCD projector KR0129208B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890010188A KR0129208B1 (en) 1989-07-18 1989-07-18 3-panel stereoscopic LCD projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890010188A KR0129208B1 (en) 1989-07-18 1989-07-18 3-panel stereoscopic LCD projector

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KR910004055A KR910004055A (en) 1991-02-28
KR0129208B1 true KR0129208B1 (en) 1998-04-10

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