WO2004071939A3 - System and method for sub-pixel electronic alignment - Google Patents

System and method for sub-pixel electronic alignment Download PDF

Info

Publication number
WO2004071939A3
WO2004071939A3 PCT/US2004/002798 US2004002798W WO2004071939A3 WO 2004071939 A3 WO2004071939 A3 WO 2004071939A3 US 2004002798 W US2004002798 W US 2004002798W WO 2004071939 A3 WO2004071939 A3 WO 2004071939A3
Authority
WO
WIPO (PCT)
Prior art keywords
pixel
sub
delay
electronic alignment
pixel information
Prior art date
Application number
PCT/US2004/002798
Other languages
French (fr)
Other versions
WO2004071939A2 (en
Inventor
David T Amm
Douglas A Webb
Original Assignee
Silicon Light Machines Corp
David T Amm
Douglas A Webb
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 Silicon Light Machines Corp, David T Amm, Douglas A Webb filed Critical Silicon Light Machines Corp
Publication of WO2004071939A2 publication Critical patent/WO2004071939A2/en
Publication of WO2004071939A3 publication Critical patent/WO2004071939A3/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]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • 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]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • 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
    • H04N5/7458—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 deformable mirrors, e.g. digital micromirror device [DMD]

Abstract

In one embodiment, a delay circuit (511,512) is configured to delay pixel information from an image source, such as a frame buffer (508). The delay circuit (511,512) may be configured to delay the pixel information by an amount of time that would move a pixel projected on a surface by a distance less than a dimension of the pixel. A light modulator (300) may modulate a light beam onto a surface, such as a display screen, based on the delayed pixel information. This advantageously allows for sub-pixel electronic alignment.
PCT/US2004/002798 2003-02-04 2004-02-02 System and method for sub-pixel electronic alignment WO2004071939A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US44489603P 2003-02-04 2003-02-04
US60/444,896 2003-02-04
US10/769,048 US6967758B2 (en) 2003-02-04 2004-01-30 System and method for sub-pixel electronic alignment
US10/769,048 2004-01-30

Publications (2)

Publication Number Publication Date
WO2004071939A2 WO2004071939A2 (en) 2004-08-26
WO2004071939A3 true WO2004071939A3 (en) 2005-09-09

Family

ID=32871932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/002798 WO2004071939A2 (en) 2003-02-04 2004-02-02 System and method for sub-pixel electronic alignment

Country Status (2)

Country Link
US (1) US6967758B2 (en)
WO (1) WO2004071939A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4196983B2 (en) * 2005-10-07 2008-12-17 セイコーエプソン株式会社 COOLING DEVICE, PROJECTOR, AND COOLING METHOD
EP1941466B1 (en) * 2005-10-27 2015-12-02 International Business Machines Corporation System and method for dynamically managing badge access
US20100066770A1 (en) * 2008-09-18 2010-03-18 Eastman Kodak Company Pulse Width Modulation Display Pixels with Spatial Manipulation
US20100177129A1 (en) * 2009-01-12 2010-07-15 Fredlund John R Artifact reduction in optical scanning displays
US8451353B1 (en) * 2011-11-08 2013-05-28 Alces Technology, Inc. Multiple-linear-array MEMS display chips
EP3281909A1 (en) * 2016-08-08 2018-02-14 Essilor International Projector configured to project an image onto a surface and portable device comprising such projector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992706A (en) * 1990-02-21 1991-02-12 North American Philips Corporation CRT raster distortion correction circuit
US6847390B2 (en) * 2001-07-19 2005-01-25 Ricoh Company, Ltd. Method and apparatus for image forming capable of effectively adjusting an image recording start position

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5982553A (en) * 1997-03-20 1999-11-09 Silicon Light Machines Display device incorporating one-dimensional grating light-valve array
US6215579B1 (en) * 1998-06-24 2001-04-10 Silicon Light Machines Method and apparatus for modulating an incident light beam for forming a two-dimensional image
US6480634B1 (en) * 2000-05-18 2002-11-12 Silicon Light Machines Image projector including optical fiber which couples laser illumination to light modulator
US7113195B2 (en) * 2002-04-30 2006-09-26 Intel Corporation Generating pulse width modulated waveforms to digitally drive pixels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992706A (en) * 1990-02-21 1991-02-12 North American Philips Corporation CRT raster distortion correction circuit
US6847390B2 (en) * 2001-07-19 2005-01-25 Ricoh Company, Ltd. Method and apparatus for image forming capable of effectively adjusting an image recording start position

Also Published As

Publication number Publication date
US20040183882A1 (en) 2004-09-23
US6967758B2 (en) 2005-11-22
WO2004071939A2 (en) 2004-08-26

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