JPS6432288A - Projection type color display device - Google Patents

Projection type color display device

Info

Publication number
JPS6432288A
JPS6432288A JP18820987A JP18820987A JPS6432288A JP S6432288 A JPS6432288 A JP S6432288A JP 18820987 A JP18820987 A JP 18820987A JP 18820987 A JP18820987 A JP 18820987A JP S6432288 A JPS6432288 A JP S6432288A
Authority
JP
Japan
Prior art keywords
light
polarized light
kinds
polarizing plate
beam splitter
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.)
Granted
Application number
JP18820987A
Other languages
Japanese (ja)
Other versions
JP2691536B2 (en
Inventor
Hiroshi Kamakura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP62188209A priority Critical patent/JP2691536B2/en
Publication of JPS6432288A publication Critical patent/JPS6432288A/en
Application granted granted Critical
Publication of JP2691536B2 publication Critical patent/JP2691536B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To form a bright image by enhancing the use efficiency of light by a polarizing plate by optically modulating two kinds of P and S polarized light obtained by separating white light by two light valves and synthesizing by a beam splitter and projecting an image. CONSTITUTION: The light of a xenon lamp 10 or the like separated as the two kinds of the S and P polarized light by the beam splitter 11 is guided by a mirror 12, and a picture signal is optically modulated by the light valve 13 transmitting the S polarized light and the light valve 14 transmitting the P polarized light, and the two kinds of polarized light are synthesized by the beam splitter 15 and the image is projected on a screen 17 by a projection lens 16. The light valve is formed of a transparent substrate where a thin film transistor 22 and a picture element electrode 23 are arrayed, a substrate 24 having the filter 27 of three primary colors and the polarizing plate 26 selecting either of the two kinds of the S and P polarized light. Thus, the use efficiency of the light is enhanced by the polarizing plate by separating the white light for the two kinds of the P and S polarized light, so that the bright image is formed.
JP62188209A 1987-07-28 1987-07-28 Projection display device Expired - Lifetime JP2691536B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62188209A JP2691536B2 (en) 1987-07-28 1987-07-28 Projection display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188209A JP2691536B2 (en) 1987-07-28 1987-07-28 Projection display device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP9008074A Division JP3047841B2 (en) 1997-01-20 1997-01-20 Projection display device

Publications (2)

Publication Number Publication Date
JPS6432288A true JPS6432288A (en) 1989-02-02
JP2691536B2 JP2691536B2 (en) 1997-12-17

Family

ID=16219676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188209A Expired - Lifetime JP2691536B2 (en) 1987-07-28 1987-07-28 Projection display device

Country Status (1)

Country Link
JP (1) JP2691536B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021113239A1 (en) 2020-06-10 2021-12-16 Toyota Jidosha Kabushiki Kaisha Holding device for a portable terminal for a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150937A (en) * 1981-12-28 1983-09-07 ヒューズ・エアクラフト・カンパニー Image projector
JPS61102626A (en) * 1984-10-25 1986-05-21 Sony Corp Negative-positive converter
JPS6259919A (en) * 1985-09-10 1987-03-16 Seiko Epson Corp Projection type color display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150937A (en) * 1981-12-28 1983-09-07 ヒューズ・エアクラフト・カンパニー Image projector
JPS61102626A (en) * 1984-10-25 1986-05-21 Sony Corp Negative-positive converter
JPS6259919A (en) * 1985-09-10 1987-03-16 Seiko Epson Corp Projection type color display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021113239A1 (en) 2020-06-10 2021-12-16 Toyota Jidosha Kabushiki Kaisha Holding device for a portable terminal for a vehicle

Also Published As

Publication number Publication date
JP2691536B2 (en) 1997-12-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term