JP6131579B2 - 表示装置及び表示装置の制御方法 - Google Patents

表示装置及び表示装置の制御方法 Download PDF

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Publication number
JP6131579B2
JP6131579B2 JP2012260083A JP2012260083A JP6131579B2 JP 6131579 B2 JP6131579 B2 JP 6131579B2 JP 2012260083 A JP2012260083 A JP 2012260083A JP 2012260083 A JP2012260083 A JP 2012260083A JP 6131579 B2 JP6131579 B2 JP 6131579B2
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JP
Japan
Prior art keywords
duty ratio
current value
brightness
light
pwm signal
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.)
Expired - Fee Related
Application number
JP2012260083A
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English (en)
Japanese (ja)
Other versions
JP2014106420A (ja
JP2014106420A5 (enExample
Inventor
隆史 豊岡
隆史 豊岡
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP2012260083A priority Critical patent/JP6131579B2/ja
Priority to US14/084,005 priority patent/US10009584B2/en
Publication of JP2014106420A publication Critical patent/JP2014106420A/ja
Publication of JP2014106420A5 publication Critical patent/JP2014106420A5/ja
Application granted granted Critical
Publication of JP6131579B2 publication Critical patent/JP6131579B2/ja
Priority to US15/991,373 priority patent/US10770029B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G09G5/10—Intensity circuits
    • 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
    • H04N9/3161—Modulator illumination systems using laser light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2053—Intensity control of illuminating light
    • 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
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • 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
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Transforming Electric Information Into Light Information (AREA)
JP2012260083A 2012-11-28 2012-11-28 表示装置及び表示装置の制御方法 Expired - Fee Related JP6131579B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012260083A JP6131579B2 (ja) 2012-11-28 2012-11-28 表示装置及び表示装置の制御方法
US14/084,005 US10009584B2 (en) 2012-11-28 2013-11-19 Display device and method of controlling display device
US15/991,373 US10770029B2 (en) 2012-11-28 2018-05-29 Display device and method of controlling display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012260083A JP6131579B2 (ja) 2012-11-28 2012-11-28 表示装置及び表示装置の制御方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2016213506A Division JP6229784B2 (ja) 2016-10-31 2016-10-31 表示装置及び表示装置の制御方法

Publications (3)

Publication Number Publication Date
JP2014106420A JP2014106420A (ja) 2014-06-09
JP2014106420A5 JP2014106420A5 (enExample) 2015-12-17
JP6131579B2 true JP6131579B2 (ja) 2017-05-24

Family

ID=50772911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012260083A Expired - Fee Related JP6131579B2 (ja) 2012-11-28 2012-11-28 表示装置及び表示装置の制御方法

Country Status (2)

Country Link
US (2) US10009584B2 (enExample)
JP (1) JP6131579B2 (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6589141B2 (ja) * 2014-03-18 2019-10-16 パナソニックＩｐマネジメント株式会社 投写型映像表示装置
WO2016098281A1 (ja) * 2014-12-18 2016-06-23 日本電気株式会社 投射装置およびインターフェース装置
JPWO2017033369A1 (ja) 2015-08-24 2018-06-07 ソニー株式会社 画像表示装置、画像表示方法、及びプログラム
JP6693140B2 (ja) * 2016-01-20 2020-05-13 セイコーエプソン株式会社 表示装置、及び、表示装置の制御方法
JP6784029B2 (ja) * 2016-02-03 2020-11-11 ソニー株式会社 光源装置及び投射型表示装置
CN107632485B (zh) * 2016-07-19 2019-08-27 深圳光峰科技股份有限公司 色轮模组、发光装置及投影系统
JP6508244B2 (ja) * 2017-03-30 2019-05-08 船井電機株式会社 表示装置
KR102568792B1 (ko) * 2017-12-04 2023-08-21 삼성전자주식회사 회절 광학 렌즈를 구비한 다중 영상 디스플레이 장치
JP7220348B2 (ja) * 2018-10-17 2023-02-10 パナソニックＩｐマネジメント株式会社 半導体光源装置、及び投写型表示装置
CN110289925B (zh) * 2019-06-05 2021-06-11 宁波大学 一种判决后变分推断估计主用户占空比的方法
CN111785219B (zh) * 2020-07-30 2022-06-10 惠州视维新技术有限公司 Led驱动方法、显示装置及可读存储介质
CN114077133B (zh) * 2020-08-12 2023-05-26 中强光电股份有限公司 投影装置及其控制方法
JP2023088401A (ja) * 2021-12-15 2023-06-27 パナソニックＩｐマネジメント株式会社 画像表示装置および光源制御回路

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104509A (en) * 1996-10-21 2000-08-15 Fuji Photo Film Co., Ltd. Method for correcting quantity of emitted light
JP2004354717A (ja) 2003-05-29 2004-12-16 Seiko Epson Corp 表示装置および投射型表示装置
JP2008164749A (ja) * 2006-12-27 2008-07-17 Mitsubishi Electric Corp 画像表示装置および画像表示方法
JP5307527B2 (ja) * 2008-12-16 2013-10-02 ルネサスエレクトロニクス株式会社 表示装置、表示パネルドライバ、及びバックライト駆動方法
WO2011001726A1 (ja) * 2009-07-03 2011-01-06 シャープ株式会社 液晶表示装置および光源制御方法
JP4686644B2 (ja) * 2009-07-07 2011-05-25 シャープ株式会社 液晶表示装置
JP2011085693A (ja) * 2009-10-14 2011-04-28 Sharp Corp 液晶表示装置
JP5436661B2 (ja) * 2010-03-30 2014-03-05 Ｅｉｚｏ株式会社 バックライト光量制御方法およびそれを用いた液晶表示装置
KR20110133869A (ko) * 2010-06-07 2011-12-14 엘지전자 주식회사 백라이트 제어장치 및 그 제어 방법
WO2011158380A1 (ja) * 2010-06-18 2011-12-22 トヨタ自動車株式会社 有機ｅｌパネルの駆動装置、及びこれを含む有機ｅｌディスプレイ
JP5769046B2 (ja) * 2010-10-20 2015-08-26 セイコーエプソン株式会社 光源制御装置及び方法並びにプロジェクター
KR101289650B1 (ko) * 2010-12-08 2013-07-25 엘지디스플레이 주식회사 액정표시장치와 그 스캐닝 백라이트 구동 방법
TWI507080B (zh) * 2012-08-08 2015-11-01 Innocom Tech Shenzhen Co Ltd 調光電路及其調光方法

Also Published As

Publication number Publication date
US20140146092A1 (en) 2014-05-29
US10770029B2 (en) 2020-09-08
JP2014106420A (ja) 2014-06-09
US20180278901A1 (en) 2018-09-27
US10009584B2 (en) 2018-06-26

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