JPH04263236A - Projection type liquid crystal display device - Google Patents

Projection type liquid crystal display device

Info

Publication number
JPH04263236A
JPH04263236A JP2424291A JP2424291A JPH04263236A JP H04263236 A JPH04263236 A JP H04263236A JP 2424291 A JP2424291 A JP 2424291A JP 2424291 A JP2424291 A JP 2424291A JP H04263236 A JPH04263236 A JP H04263236A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
liquid crystal
type liquid
display device
crystal display
projection type
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2424291A
Inventor
Hidenori Ikeno
Original Assignee
Nec Corp
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

Links

Abstract

PURPOSE: To prevent the contrast of a projection image from being spoiled even if scattered light is generated due to the raggedness of a reflecting surface in a projection type liquid crystal display device which uses a reflection type liquid crystal optical modulating element.
CONSTITUTION: The scattered light and reflected light components generated by the reflection type liquid crystal optical modulating element 5 are converged by a converging lens 7 and pass through a pinhole filter 8, and then the scattered light component is interrupted and not transmitted from a projection lens 9 to a screen 10, so a high-contrast image is obtained. The projection type liquid crystal display device which has the pinhole filter or a micromirror is used to constitute the projection type liquid crystal display device which can make a high-contrast display on the screen.
COPYRIGHT: (C)1992,JPO&Japio
JP2424291A 1991-02-19 1991-02-19 Projection type liquid crystal display device Pending JPH04263236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2424291A JPH04263236A (en) 1991-02-19 1991-02-19 Projection type liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2424291A JPH04263236A (en) 1991-02-19 1991-02-19 Projection type liquid crystal display device

Publications (1)

Publication Number Publication Date
JPH04263236A true true JPH04263236A (en) 1992-09-18

Family

ID=12132784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2424291A Pending JPH04263236A (en) 1991-02-19 1991-02-19 Projection type liquid crystal display device

Country Status (1)

Country Link
JP (1) JPH04263236A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541679A (en) * 1994-10-31 1996-07-30 Daewoo Electronics, Co., Ltd. Optical projection system
EP0686934A3 (en) * 1994-05-17 1996-08-21 Texas Instruments Inc Display device with pointer position detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686934A3 (en) * 1994-05-17 1996-08-21 Texas Instruments Inc Display device with pointer position detection
US5541679A (en) * 1994-10-31 1996-07-30 Daewoo Electronics, Co., Ltd. Optical projection system

Similar Documents

Publication Publication Date Title
US5383053A (en) Virtual image display having a high efficiency grid beamsplitter
US5327270A (en) Polarizing beam splitter apparatus and light valve image projection system
US5771124A (en) Compact display system with two stage magnification and immersed beam splitter
US5644323A (en) Miniature synthesized virtual image electronic display
US4850685A (en) Projection-type color display device
US5597222A (en) Optical relay lens system for projection displays
JPH03204616A (en) Liquid crystal display
US6755538B2 (en) Projection-type image display device
US20030123029A1 (en) Folded projection lens
JPH0365879A (en) Camera incorporating projection display function
JPH04107521A (en) Oblique projection type display device
JPH0363690A (en) Projection type display device
JPS6339294A (en) Video projecting device
US6047139A (en) Camera capable of display in finder
JPH04194921A (en) Projection type liquid crystal display device
JPH04100088A (en) Direct viewing type picture display device
JPS62210415A (en) Optical projection system for precise copying
JPH02230288A (en) Projection type liquid crystal display device
JPH041725A (en) Liquid crystal display device
JPH023085A (en) Liquid crystal projector
JPH0430140A (en) Projection type color liquid crystal display device
JPH04296838A (en) Reflector type screen and manufacture thereof
US5890786A (en) Projection apparatus
JPH0384538A (en) Projection type display device
JPH03187696A (en) Projection type liquid crystal display device