WO2001050178A3 - Reflective liquid-crystal-on-silicon projection engine architecture - Google Patents

Reflective liquid-crystal-on-silicon projection engine architecture Download PDF

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Publication number
WO2001050178A3
WO2001050178A3 PCT/US2000/034625 US0034625W WO0150178A3 WO 2001050178 A3 WO2001050178 A3 WO 2001050178A3 US 0034625 W US0034625 W US 0034625W WO 0150178 A3 WO0150178 A3 WO 0150178A3
Authority
WO
WIPO (PCT)
Prior art keywords
architecture
stage
crystal
luminance
projection engine
Prior art date
Application number
PCT/US2000/034625
Other languages
French (fr)
Other versions
WO2001050178A2 (en
Inventor
George M Mihalakis
Original Assignee
Gain Micro Optics 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 Gain Micro Optics Inc filed Critical Gain Micro Optics Inc
Priority to JP2001550476A priority Critical patent/JP2003519405A/en
Priority to EP00989337A priority patent/EP1256029A2/en
Publication of WO2001050178A2 publication Critical patent/WO2001050178A2/en
Publication of WO2001050178A3 publication Critical patent/WO2001050178A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof

Abstract

A projection engine architecture for use with liquid-crystal-on-silicon semiconductor imager devices is described. This projector architecture relates to rear projection television and computer monitor applications, wherein image resolution is higher and image size is larger than is practical with cathode ray tube based technologies. The optical architecture disclosed includes a high speed light collection stage wherein luminance from an arc lamp is collected and condensed, an illumination stage wherein the luminance is ideally transformed for presentation to an imaging stage comprised of a triad of three perpendicular polarization beamsplitter cubes and attendant color processing components that form a solid prism assembly. Central to the architecture are means for eliminating the deleterious effects of waste light created by polarization and color separation components within the imaging stage.
PCT/US2000/034625 1999-12-30 2000-12-18 Reflective liquid-crystal-on-silicon projection engine architecture WO2001050178A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2001550476A JP2003519405A (en) 1999-12-30 2000-12-18 Liquid crystal reflective projection engine architecture mounted on silicon
EP00989337A EP1256029A2 (en) 1999-12-30 2000-12-18 Reflective liquid-crystal-on-silicon projection engine architecture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/474,943 US6375330B1 (en) 1999-12-30 1999-12-30 Reflective liquid-crystal-on-silicon projection engine architecture
US09/474,943 1999-12-30

Publications (2)

Publication Number Publication Date
WO2001050178A2 WO2001050178A2 (en) 2001-07-12
WO2001050178A3 true WO2001050178A3 (en) 2002-01-17

Family

ID=23885604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/034625 WO2001050178A2 (en) 1999-12-30 2000-12-18 Reflective liquid-crystal-on-silicon projection engine architecture

Country Status (5)

Country Link
US (1) US6375330B1 (en)
EP (1) EP1256029A2 (en)
JP (1) JP2003519405A (en)
TW (1) TW504935B (en)
WO (1) WO2001050178A2 (en)

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Also Published As

Publication number Publication date
WO2001050178A2 (en) 2001-07-12
TW504935B (en) 2002-10-01
JP2003519405A (en) 2003-06-17
EP1256029A2 (en) 2002-11-13
US6375330B1 (en) 2002-04-23

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