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JPS6484290A - Projection type display device - Google Patents

Projection type display device

Info

Publication number
JPS6484290A
JPS6484290A JP24296187A JP24296187A JPS6484290A JP S6484290 A JPS6484290 A JP S6484290A JP 24296187 A JP24296187 A JP 24296187A JP 24296187 A JP24296187 A JP 24296187A JP S6484290 A JPS6484290 A JP S6484290A
Authority
JP
Japan
Prior art keywords
liquid crystal
air
light valve
crystal light
fan
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
JP24296187A
Other languages
Japanese (ja)
Inventor
Tomoko Masuki
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 JP24296187A priority Critical patent/JPS6484290A/en
Publication of JPS6484290A publication Critical patent/JPS6484290A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To attain cooling with high efficiency and to provide a projection type display device having high image quality by introducing cooling air to a liquid crystal light valve by means of a fan and an air flow regulating plate. CONSTITUTION: The fan 5 and the air flow regulating plate 6 formed by molding of plastic or sheet metal working, etc., are mounted in a case 10 and a dust filter 8 is mounted in the suction hole 9 of the fan 5. Namely, the external air taken in from the suction hole 9 by the fan 5 is introduced to the air flow regulating plate 6 and is blown to the liquid crystal light valve 1, by which the liquid crystal light valve 1 is cooled. The air is discharged from a discharge hole 9. Dust, etc., are removed at the time of sucking the air and the clean air is fed by a dust filter 8 mounted at the suction hole 7. As a result, the display defect by the temp. rise of the liquid crystal light valve 1 is prevented. The adhesion of the dust, etc., to the liquid crystal light valve 1 is prevented and the image quality is improved by mounting the dust filter 8.
JP24296187A 1987-09-28 1987-09-28 Projection type display device Pending JPS6484290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24296187A JPS6484290A (en) 1987-09-28 1987-09-28 Projection type display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24296187A JPS6484290A (en) 1987-09-28 1987-09-28 Projection type display device

Publications (1)

Publication Number Publication Date
JPS6484290A true JPS6484290A (en) 1989-03-29

Family

ID=17096804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24296187A Pending JPS6484290A (en) 1987-09-28 1987-09-28 Projection type display device

Country Status (1)

Country Link
JP (1) JPS6484290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000792A1 (en) * 1992-06-30 1994-01-06 Citizen Watch Co., Ltd. Liquid crystal display unit and liquid crystal projector using this liquid crystal display unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000792A1 (en) * 1992-06-30 1994-01-06 Citizen Watch Co., Ltd. Liquid crystal display unit and liquid crystal projector using this liquid crystal display unit

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