KR920007458A - LCD Projector Using Polarization Rotation - Google Patents

LCD Projector Using Polarization Rotation Download PDF

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Publication number
KR920007458A
KR920007458A KR1019900015810A KR900015810A KR920007458A KR 920007458 A KR920007458 A KR 920007458A KR 1019900015810 A KR1019900015810 A KR 1019900015810A KR 900015810 A KR900015810 A KR 900015810A KR 920007458 A KR920007458 A KR 920007458A
Authority
KR
South Korea
Prior art keywords
rotating unit
lcd
polarization rotating
lcd projector
liquid crystal
Prior art date
Application number
KR1019900015810A
Other languages
Korean (ko)
Other versions
KR0141833B1 (en
Inventor
이승규
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019900015810A priority Critical patent/KR0141833B1/en
Publication of KR920007458A publication Critical patent/KR920007458A/en
Application granted granted Critical
Publication of KR0141833B1 publication Critical patent/KR0141833B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)

Abstract

내용 없음No content

Description

편광회전을 이용한 LCD프로젝터LCD Projector Using Polarization Rotation

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

제2도는 본 발명에 의한 LCD 프로젝터의 광학계를 보인 구성도.2 is a block diagram showing an optical system of the LCD projector according to the present invention.

제3도는 평면도.3 is a plan view.

제4도는 작용도.4 is the degree of action.

제5도는 분해 사시도.5 is an exploded perspective view.

Claims (3)

LCD 프로젝터의 광학계에 있어서, LCD 액정패널(7)(8)(9)의 후방측에 램프(1)에서 반사된 R,G,B 각각의 빛을 100％LCD 액정패널(7)(8)(9)로 투사시키는 편광회전부(20)(30)(40)를 배치하여 구성함을 특징으로 하는 편광회전부를 이용한 LCD프로젝터.In the optical system of the LCD projector, 100% LCD liquid crystal panels (7) and (8) each of R, G, and B reflected light from the lamp (1) on the rear side of the LCD liquid crystal panels (7) (8) (9). An LCD projector using a polarization rotating unit, characterized by arranging the polarization rotating unit 20, 30, 40 to project to (9). 제1항에 있어서, 상기 편광회전부(20)(30)(40)는 편광빔 분리기(21)(31)(41)의 일측면에 B,G,R/4플레이트(22)(32)(42)및 전반사 미러(23)(33)(43)가 부착되고, 상기 편광빔 분리기(21)(31)(41)에 일정각도로 LCD 액정패널 (7)(8)(9)를 향하도록 전반사 미러(24)(34)(44)가 배치된 것임을 특징으로 하는 편광회전부를 이용한 LCD프로젝터.According to claim 1, wherein the polarization rotating unit 20, 30, 40 is B, G, R on one side of the polarizing beam splitter (21) (31) (41) / 4 plates (22) (32) (42) and total reflection mirrors (23) (33) (43) are attached and the LCD liquid crystal panel (7) at an angle to the polarization beam separators (21) (31) (41). (8) (9) LCD projector using a polarization rotating unit, characterized in that the total reflection mirror (24, 34, 44) is disposed. 제1항 또는 제2항에 있어서, 상기 LCD 액정패널(7)(8)(9)과 편광회전부(20)(30)(40)의 사이에 밝기 보정필터(25)(35)(45)를 배치하여 구성함을 특징으로 하는 편광회전부를 이용한 LCD 프로젝터.A brightness correction filter (25, 35, 45) between the LCD liquid crystal panel (7) (8) (9) and the polarization rotating unit (20) (30) (40). LCD projector using a polarization rotating unit characterized in that by arranging. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900015810A 1990-09-29 1990-09-29 L.c.d projector by using polarized light rotation KR0141833B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900015810A KR0141833B1 (en) 1990-09-29 1990-09-29 L.c.d projector by using polarized light rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900015810A KR0141833B1 (en) 1990-09-29 1990-09-29 L.c.d projector by using polarized light rotation

Publications (2)

Publication Number Publication Date
KR920007458A true KR920007458A (en) 1992-04-28
KR0141833B1 KR0141833B1 (en) 1998-06-15

Family

ID=19304344

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900015810A KR0141833B1 (en) 1990-09-29 1990-09-29 L.c.d projector by using polarized light rotation

Country Status (1)

Country Link
KR (1) KR0141833B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100303844B1 (en) * 1999-04-09 2001-09-26 김순택 Liquid crystal display and LCD projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100303844B1 (en) * 1999-04-09 2001-09-26 김순택 Liquid crystal display and LCD projector

Also Published As

Publication number Publication date
KR0141833B1 (en) 1998-06-15

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