EP1664903A4 - Color filter unit and projection system employing the same - Google Patents

Color filter unit and projection system employing the same

Info

Publication number
EP1664903A4
EP1664903A4 EP04774650A EP04774650A EP1664903A4 EP 1664903 A4 EP1664903 A4 EP 1664903A4 EP 04774650 A EP04774650 A EP 04774650A EP 04774650 A EP04774650 A EP 04774650A EP 1664903 A4 EP1664903 A4 EP 1664903A4
Authority
EP
European Patent Office
Prior art keywords
same
color filter
filter unit
projection system
system employing
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.)
Withdrawn
Application number
EP04774650A
Other languages
German (de)
French (fr)
Other versions
EP1664903A1 (en
Inventor
Sung-Ha Kim
Dong-Ha Kim
Ju-Seong Hwang
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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
Priority claimed from KR1020030097798A external-priority patent/KR20050030087A/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1664903A1 publication Critical patent/EP1664903A1/en
Publication of EP1664903A4 publication Critical patent/EP1664903A4/en
Withdrawn legal-status Critical Current

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
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
    • H04N9/3117—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing two or more colours simultaneously, e.g. by creating scrolling colour bands
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
EP04774650A 2003-09-24 2004-09-17 Color filter unit and projection system employing the same Withdrawn EP1664903A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50517103P 2003-09-24 2003-09-24
KR1020030097798A KR20050030087A (en) 2003-09-24 2003-12-26 Color filter unit and projection system employing the same
PCT/KR2004/002391 WO2005029156A1 (en) 2003-09-24 2004-09-17 Color filter unit and projection system employing the same

Publications (2)

Publication Number Publication Date
EP1664903A1 EP1664903A1 (en) 2006-06-07
EP1664903A4 true EP1664903A4 (en) 2009-11-04

Family

ID=36242047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04774650A Withdrawn EP1664903A4 (en) 2003-09-24 2004-09-17 Color filter unit and projection system employing the same

Country Status (2)

Country Link
EP (1) EP1664903A4 (en)
WO (1) WO2005029156A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098183A (en) * 1988-09-12 1992-03-24 Seiko Epson Corporation Dichroic optical elements for use in a projection type display apparatus
WO2000070403A1 (en) * 1999-05-14 2000-11-23 Colorlink, Inc. Color imaging systems and methods
US6379010B1 (en) * 1998-11-12 2002-04-30 Fujitsu Limited Projection type display
US20030107809A1 (en) * 2001-11-30 2003-06-12 Jianmin Chen Compensated color management systems and methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW293981B (en) * 1995-07-21 1996-12-21 Philips Electronics Nv
US5975703A (en) * 1996-09-30 1999-11-02 Digital Optics International Image projection system
US5921650A (en) * 1998-02-27 1999-07-13 International Business Machines Corporation High efficiency field-sequential color projector using two SLMs
EP1169664B1 (en) * 1999-11-22 2004-01-07 Koninklijke Philips Electronics N.V. Image projection system
KR100364399B1 (en) * 2000-10-26 2002-12-12 엘지전자 주식회사 Optical System Of Liquid Crystal Projector
KR100433210B1 (en) * 2001-08-10 2004-05-28 엘지전자 주식회사 Optical illumination system for projector using optical device with function of homogenizing and color separation
US6961179B2 (en) * 2001-11-30 2005-11-01 Colorlink, Inc. Compensated color management systems and methods

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098183A (en) * 1988-09-12 1992-03-24 Seiko Epson Corporation Dichroic optical elements for use in a projection type display apparatus
US6379010B1 (en) * 1998-11-12 2002-04-30 Fujitsu Limited Projection type display
WO2000070403A1 (en) * 1999-05-14 2000-11-23 Colorlink, Inc. Color imaging systems and methods
US20030107809A1 (en) * 2001-11-30 2003-06-12 Jianmin Chen Compensated color management systems and methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005029156A1 *

Also Published As

Publication number Publication date
EP1664903A1 (en) 2006-06-07
WO2005029156A1 (en) 2005-03-31

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050728

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT NL

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT NL

A4 Supplementary search report drawn up and despatched

Effective date: 20091005

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100105