KR940020820A - LCD Projector - Google Patents

LCD Projector Download PDF

Info

Publication number
KR940020820A
KR940020820A KR1019930002768A KR930002768A KR940020820A KR 940020820 A KR940020820 A KR 940020820A KR 1019930002768 A KR1019930002768 A KR 1019930002768A KR 930002768 A KR930002768 A KR 930002768A KR 940020820 A KR940020820 A KR 940020820A
Authority
KR
South Korea
Prior art keywords
light
liquid crystal
loss
optical
prism
Prior art date
Application number
KR1019930002768A
Other languages
Korean (ko)
Other versions
KR0170645B1 (en
Inventor
정성수
Original Assignee
김광호
삼성전자 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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930002768A priority Critical patent/KR0170645B1/en
Publication of KR940020820A publication Critical patent/KR940020820A/en
Application granted granted Critical
Publication of KR0170645B1 publication Critical patent/KR0170645B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

이 발명은 액정 투사 장치에 관한 것이다. 이 발명은 광의 손실을 보상하기 위한 두 개의 광원과, 광의 손실을 억제하기 위한 프레넬 렌즈와, 광을 일정 방향으로 굴절시키는 프리즘과, 광을 집속시키는 콘덴서 렌즈와, 광 성분을 분류하는 광학 필터와, 광을 일정 방향으로 반사하는 미러와, 광 성분의 상을 형성하는 액정 판넬과, 광 성분을 확대 투사하는 투사 렌즈를 구비하여 광의 손실을 억제 및 보상하였다. 따라서, 액정 투사장치는 액정투사장치를 이용한 칼라 텔레비젼등에 이용된다.The present invention relates to a liquid crystal projection device. The present invention provides two light sources for compensating for the loss of light, a Fresnel lens for suppressing the loss of light, a prism for refracting the light in a predetermined direction, a condenser lens for condensing the light, and an optical filter for classifying the light components. And a mirror for reflecting light in a constant direction, a liquid crystal panel for forming an image of the light component, and a projection lens to enlarge and project the light component, thereby suppressing and compensating for the loss of light. Therefore, the liquid crystal projection apparatus is used for color televisions using a liquid crystal projection value.

Description

액정 투사장치LCD Projector

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

제 1 도는 종래의 액정 투사장치를 나타내는 구성도,1 is a block diagram showing a conventional liquid crystal projection apparatus,

제 2 도는 제 1 도에 의한 광 손실 영역을 나타내는 구성도,2 is a configuration diagram showing the light loss region according to FIG. 1;

제 3 도는 이 발명에 따른 액정 투사장치의 일실시예를 나타내는 구성도,3 is a block diagram showing an embodiment of a liquid crystal projection apparatus according to the present invention,

제 4 도는 제 3 도의 부분 구성도,4 is a partial configuration diagram of FIG.

제 5 도는 제 3 도의 광 손실 영역을 나타내는 구성도이다.5 is a configuration diagram showing the light loss region of FIG.

Claims (1)

휘도를 개선하기 위한 두 개의 광원(12,14)과, 상기 각각의 광원(12,14)에 가깝게 구성하여 상기 각각의 광원(12,14)에서 발생한 광의 손실을 최대한으로 줄임으로써 광의 손실을 억제하고 광을 집속시키는 각각의 프레넬렌즈(70,72)와, 상기 각각의 프레넬 렌즈(70,72)를 통하여 집속된 두 개의 광축을 평행하게 굴절시키는 프리즘(80)과, 상기 프리즘(80)을 통하여굴절된 광을 집속시키는 콘덴서 렌즈(46)와, 상기 콘덴서 렌즈(46)를 통하여 집속된 광중 적색과 녹색 및 청색으로 분광하고 합성하는 광학 필터(20,22,24,26)와, 상기 광학 필터(20,22,24)에서 필터링 된 광 성분을 일정 방향으로 반사시키는 미러(30,32,34)와, 상기 광학 필터(20,22,24)에서 필터링된 광 성분의 상을 형성하는 액정 판넬(50,52,54)과, 상기 광학 필터(26)를 통하여 필터링 된 광을 확대 투사하는 투사 렌즈(60)를 구비하여 된 것을 특징으로 하는 액정 투사장치.Two light sources 12 and 14 for improving the brightness and close to each of the light sources 12 and 14 to minimize the loss of light generated by the respective light sources 12 and 14 to suppress the loss of light. Each of the Fresnel lenses 70 and 72 for focusing light, a prism 80 for refracting two optical axes focused through the Fresnel lenses 70 and 72 in parallel, and the prism 80 A condenser lens 46 for condensing light refracted through the optical signal, optical filters 20, 22, 24, and 26 for spectroscopy and synthesis of red, green, and blue of the light focused through the condenser lens 46; Mirrors 30, 32, and 34 reflecting the light components filtered by the optical filters 20, 22, and 24 in a predetermined direction, and images of the light components filtered by the optical filters 20, 22, and 24 are formed. A projection lens that enlarges and projects the filtered light through the liquid crystal panels 50, 52, and 54 and the optical filter 26 60. A liquid crystal projection device, characterized in that it is provided. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930002768A 1993-02-26 1993-02-26 Lcd projector KR0170645B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930002768A KR0170645B1 (en) 1993-02-26 1993-02-26 Lcd projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930002768A KR0170645B1 (en) 1993-02-26 1993-02-26 Lcd projector

Publications (2)

Publication Number Publication Date
KR940020820A true KR940020820A (en) 1994-09-16
KR0170645B1 KR0170645B1 (en) 1999-03-20

Family

ID=19351315

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930002768A KR0170645B1 (en) 1993-02-26 1993-02-26 Lcd projector

Country Status (1)

Country Link
KR (1) KR0170645B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100417399B1 (en) * 1996-10-15 2004-05-07 엘지전자 주식회사 Liquid crystal projector device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100417399B1 (en) * 1996-10-15 2004-05-07 엘지전자 주식회사 Liquid crystal projector device

Also Published As

Publication number Publication date
KR0170645B1 (en) 1999-03-20

Similar Documents

Publication Publication Date Title
KR920010809B1 (en) Lcd projector
KR100392858B1 (en) Beam combiner for lcd projector utilizing a penta-prism
US7156521B2 (en) Projector for compensating chromatic aberration of magnification
US5805244A (en) Liquid crystal projector using a monochromatic liquid crystal display
US5934778A (en) Optical system for liquid crystal projector
KR950001339A (en) LCD Projector with Image Monitor
KR940020820A (en) LCD Projector
JPH08201756A (en) Liquid crystal projector
US20040207769A1 (en) Projection display device
KR930018297A (en) Projection optics
KR100235299B1 (en) Optical system of lcd projector
JPH02195382A (en) Liquid crystal video projector system
JPH04216543A (en) Liquid crystal projector
KR100763396B1 (en) Optical Lighting System
KR950007037B1 (en) 2-pannel style projecting apparatus
KR100482318B1 (en) Color Scrolling Apparatus of Rear Projector
KR930004819B1 (en) Lcd display apparatus of projector
JPH11133351A (en) Projection device
KR930004820B1 (en) Lcd display apparatus of projector
KR970057633A (en) High luminous intensity 1 panel liquid crystal projector
KR930001397B1 (en) Projection liquid crystal display device
JPH09211750A (en) Liquid crystal projector
JPH041744A (en) Liquid crystal projector
KR20020016413A (en) Optical projection engine for monitor
KR19990000322A (en) LCD projector optical system

Legal Events

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

Payment date: 20060928

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee