EP0192023A2
Expired / Lapsed
EP
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Liquid crystal projector
Assignee: Casio Computer Co Ltd
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Filing: 1986-01-07
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Granted: —
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Expires: 2006-01-07
Abstract
Abstract A liquid crystal projector is disclosed, which comprises a light source (18), a TV type liquid crystal display panel (14) and a projecting lens system (26). The liquid crystal display panel faces the screen and is inclined with respect to a fine perpendicular to an optical axis connecting the center of the liquid crystal display panel and the center of a screen (37) by a suitable visual field angle of the liquid crystal display panel.
Inventors
- 👤 Tatsuo Development Division Shimazaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 19:38
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7441; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133382; G02F1/133385; G03; G03B; G03B21/00; G03B21/005; G03B21/006; G03B21/14; G03B21/16; G03B27/00; G03B27/32; G03B27/52; G03B27/68
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
A liquid crystal projector comprising a light source, a TN type liquid crystal display panel is illuminated on the back side by light from said light source means and projecting a displayed image on an enlarged scale onto a screen, and projecting lens system means provided on said optical axis between said liquid crystal display panel and said screen, for enlarging the displayed image on said liquid crystal display panel, characterized in that: said TN type liquid crystal display panel (14) faces said screen (37) and is inclined by the angle of a suitable visual field of said liquid crystal display panel (14) with respect to a line perpendicular to an optical axis connecting the center of said liquid crystal display panel and the center of said screen.
Claim 2
Dependent Claim
128 words
A liquid crystal projector comprising a light source, a TN type liquid crystal display panel is illuminated on the back side by light from said light source means and projecting a displayed image on an enlarged scale onto a screen, and projecting lens system means provided on said optical axis between said liquid crystal display panel and said screen, for enlarging the displayed image on said liquid crystal display panel, characterized in that: said TN type liquid crystal display panel (14) faces said screen (37) and is inclined by the angle of a suitable visual field of said liquid crystal display panel (14) with respect to a line perpendicular to an optical axis connecting the center of said liquid crystal display panel and the center of said screen.
Claim 3
Dependent Claim
47 words
The liquid crystal projector according to claim 1, characterized by further comprising lens system means provided between said light source means and said liquid crystal display panel, for converting light emitted from said light source means into a parallel light beam illuminating said liquid crystal display panel.
Claim 4
Dependent Claim
41 words
The liquid crystal projector according to claim 1, characterized by further comprising an infrared absorption filter means provided between said light source means and said liquid crystal display panel, for absorbing the infrared component of light from said light source means.
Claim 5
Dependent Claim
34 words
The liquid crystal projector according to claim 1, characterized by further comprising cooling means provided in the vicinity of said liquid crystal display panel, for forcing cooling air toward said liquid crystal display panel.
References Cited (Backward Citations)
No citation records indexed.
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