WO2008027230A3 - A display control system for spatial light modulators - Google Patents

A display control system for spatial light modulators Download PDF

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Publication number
WO2008027230A3
WO2008027230A3 PCT/US2007/018359 US2007018359W WO2008027230A3 WO 2008027230 A3 WO2008027230 A3 WO 2008027230A3 US 2007018359 W US2007018359 W US 2007018359W WO 2008027230 A3 WO2008027230 A3 WO 2008027230A3
Authority
WO
WIPO (PCT)
Prior art keywords
control unit
controlling
spatial light
pixel elements
control system
Prior art date
Application number
PCT/US2007/018359
Other languages
French (fr)
Other versions
WO2008027230A2 (en
Inventor
Hirokazu Nishino
Kazuma Arai
Yoshihiro Maeda
Taro Endo
Original Assignee
Olympus Corp
Silicon Quest Kk
Ishii Fusao
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 Olympus Corp, Silicon Quest Kk, Ishii Fusao filed Critical Olympus Corp
Publication of WO2008027230A2 publication Critical patent/WO2008027230A2/en
Publication of WO2008027230A3 publication Critical patent/WO2008027230A3/en

Links

Classifications

    • 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]
    • 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
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • 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
    • G09G3/346—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 based on modulation of the reflection angle, e.g. micromirrors
    • 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
    • H04N9/312—Driving therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • 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
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/2077—Display of intermediate tones by a combination of two or more gradation control methods
    • G09G3/2081—Display of intermediate tones by a combination of two or more gradation control methods with combination of amplitude modulation and time modulation

Abstract

A display control system, comprises: a spatial light modulator (SLM) constituted by a plurality of pixel elements placed in array; a first control unit for controlling each of the plurality of pixel elements under a state of ON or OFF; a second control unit for controlling each of the plurality of pixel elements under a state other than the ON or OFF states; a control changeover unit for dividing one frame period, for each pixel element of the plurality thereof, into a period of the first control unit controlling and that of the second control unit controlling, and also changing over between a control of the first control unit and that of the second control unit for each pixel element of the plurality thereof; and a data division unit for dividing input data to each of the plurality of pixel elements into first control unit-use data, which is input to the first control unit, and second control unit-use data which is input to the second control unit in accordance with the content of the present input data.
PCT/US2007/018359 2006-08-30 2007-08-19 A display control system for spatial light modulators WO2008027230A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84112506P 2006-08-30 2006-08-30
US60/841,125 2006-08-30

Publications (2)

Publication Number Publication Date
WO2008027230A2 WO2008027230A2 (en) 2008-03-06
WO2008027230A3 true WO2008027230A3 (en) 2008-10-16

Family

ID=39136468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/018359 WO2008027230A2 (en) 2006-08-30 2007-08-19 A display control system for spatial light modulators

Country Status (2)

Country Link
US (2) US7545553B2 (en)
WO (1) WO2008027230A2 (en)

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US7471442B2 (en) * 2006-06-15 2008-12-30 Qualcomm Mems Technologies, Inc. Method and apparatus for low range bit depth enhancements for MEMS display architectures
US7527998B2 (en) 2006-06-30 2009-05-05 Qualcomm Mems Technologies, Inc. Method of manufacturing MEMS devices providing air gap control
US20080111834A1 (en) * 2006-11-09 2008-05-15 Mignard Marc M Two primary color display
US8111262B2 (en) * 2007-05-18 2012-02-07 Qualcomm Mems Technologies, Inc. Interferometric modulator displays with reduced color sensitivity
US8270056B2 (en) 2009-03-23 2012-09-18 Qualcomm Mems Technologies, Inc. Display device with openings between sub-pixels and method of making same
KR20130100232A (en) 2010-04-09 2013-09-10 퀄컴 엠이엠에스 테크놀로지스, 인크. Mechanical layer of an electromechanical device and methods of forming the same
US9134527B2 (en) 2011-04-04 2015-09-15 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
US8963159B2 (en) 2011-04-04 2015-02-24 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
US8659816B2 (en) 2011-04-25 2014-02-25 Qualcomm Mems Technologies, Inc. Mechanical layer and methods of making the same
US20140368797A1 (en) * 2013-06-12 2014-12-18 Texas Instruments Incorporated Methods and apparatus for reducing ghost images in reflective imager-based projectors
JP6996114B2 (en) * 2017-05-29 2022-01-17 セイコーエプソン株式会社 Projector and projector control method
DE102019100480A1 (en) * 2019-01-10 2020-07-16 Carl Zeiss Jena Gmbh Projector for projecting images
DE102019105838A1 (en) * 2019-03-07 2020-09-10 Automotive Lighting Reutlingen Gmbh Device for operating a control unit of a micromirror actuator and method

Citations (4)

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US4992931A (en) * 1986-12-26 1991-02-12 Kabushiki Kaisha Toshiba Data alignment correction apparatus for properly formatting data structures for different computer architectures
US5706123A (en) * 1996-09-27 1998-01-06 Texas Instruments Incorporated Switched control signals for digital micro-mirror device with split reset
US6454417B1 (en) * 1999-03-05 2002-09-24 Minolta Co., Ltd. Projection optical system comprising an optical function surface for reflecting or transmitting light from a spatial light modulator
US20040086179A1 (en) * 2002-11-04 2004-05-06 Yue Ma Post-processing system and method for correcting machine recognized text

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GB9024978D0 (en) * 1990-11-16 1991-01-02 Rank Cintel Ltd Digital mirror spatial light modulator
KR0125452B1 (en) * 1991-11-20 1997-12-19 순페이 야마자끼 Image display method and image display apparatus
WO1994009473A1 (en) * 1992-10-15 1994-04-28 Rank Brimar Limited Display device
US5619228A (en) * 1994-07-25 1997-04-08 Texas Instruments Incorporated Method for reducing temporal artifacts in digital video systems
US5668611A (en) * 1994-12-21 1997-09-16 Hughes Electronics Full color sequential image projection system incorporating pulse rate modulated illumination
US5767828A (en) * 1995-07-20 1998-06-16 The Regents Of The University Of Colorado Method and apparatus for displaying grey-scale or color images from binary images
CA2184129A1 (en) * 1995-08-31 1997-03-01 Donald B. Doherty Bit-splitting for pulse width modulated spatial light modulator
JP5127089B2 (en) * 2000-10-17 2013-01-23 キヤノン株式会社 Display device, projection display device, light modulation device driving device, and light modulation device driving method
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US7019884B2 (en) * 2003-03-31 2006-03-28 Intel Corporation Light modulator with bi-directional drive
US7304783B2 (en) * 2003-11-01 2007-12-04 Fusao Ishii Control of micromirrors with intermediate states
US7215460B2 (en) * 2003-11-01 2007-05-08 Fusao Ishii Sequence and timing control of writing and rewriting pixel memories for achieving higher number of gray scales
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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US4992931A (en) * 1986-12-26 1991-02-12 Kabushiki Kaisha Toshiba Data alignment correction apparatus for properly formatting data structures for different computer architectures
US5706123A (en) * 1996-09-27 1998-01-06 Texas Instruments Incorporated Switched control signals for digital micro-mirror device with split reset
US6454417B1 (en) * 1999-03-05 2002-09-24 Minolta Co., Ltd. Projection optical system comprising an optical function surface for reflecting or transmitting light from a spatial light modulator
US20040086179A1 (en) * 2002-11-04 2004-05-06 Yue Ma Post-processing system and method for correcting machine recognized text

Also Published As

Publication number Publication date
WO2008027230A2 (en) 2008-03-06
US20090231496A1 (en) 2009-09-17
US20080074563A1 (en) 2008-03-27
US7545553B2 (en) 2009-06-09

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