JPS63316980A - Liquid crystal video projector - Google Patents

Liquid crystal video projector

Info

Publication number
JPS63316980A
JPS63316980A JP15384887A JP15384887A JPS63316980A JP S63316980 A JPS63316980 A JP S63316980A JP 15384887 A JP15384887 A JP 15384887A JP 15384887 A JP15384887 A JP 15384887A JP S63316980 A JPS63316980 A JP S63316980A
Authority
JP
Japan
Prior art keywords
light
liquid crystal
dimming
polarizing plate
tn liquid
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
JP15384887A
Inventor
Hisanori Hirose
Akinaga Horiuchi
Koichi Mogi
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP15384887A priority Critical patent/JPS63316980A/en
Publication of JPS63316980A publication Critical patent/JPS63316980A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To realize the dimming of projecting light consecutively by an impression voltage impressed on TN liquid crystal, by arranging the TN liquid crystal and a polarizing plate behind a light modulating LCD.
CONSTITUTION: A dimming LCD5 sandwiches the TN liquid crystal 5a between glass plates 5b and 5c, and the polarizing plate 5d is arranged only at the outside of the glass plate 5c. Incident light on the dimming LCD5 becomes a horizontal component by the light modulating LCD4. By aligning the polarizing plate 5d in a direction where light is rotated optically when no voltage is applied, transmission light L2 is dimmed consecutively corresponding to the impression voltage. Dimmed light is expanded by a projecting lens 6, and is image-formed on a screen S.
COPYRIGHT: (C)1988,JPO&Japio
JP15384887A 1987-06-19 1987-06-19 Liquid crystal video projector Pending JPS63316980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15384887A JPS63316980A (en) 1987-06-19 1987-06-19 Liquid crystal video projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15384887A JPS63316980A (en) 1987-06-19 1987-06-19 Liquid crystal video projector

Publications (1)

Publication Number Publication Date
JPS63316980A true JPS63316980A (en) 1988-12-26

Family

ID=15571423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15384887A Pending JPS63316980A (en) 1987-06-19 1987-06-19 Liquid crystal video projector

Country Status (1)

Country Link
JP (1) JPS63316980A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0454244A2 (en) * 1990-04-27 1991-10-30 Philips Electronics N.V. Image display and pick-up apparatus
JPH0515036U (en) * 1991-07-31 1993-02-26 旭光学工業株式会社 Projection apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0454244A2 (en) * 1990-04-27 1991-10-30 Philips Electronics N.V. Image display and pick-up apparatus
JPH0515036U (en) * 1991-07-31 1993-02-26 旭光学工業株式会社 Projection apparatus

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