JP5542303B2 - 光源システムおよび表示装置 - Google Patents

光源システムおよび表示装置 Download PDF

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Publication number
JP5542303B2
JP5542303B2 JP2007340987A JP2007340987A JP5542303B2 JP 5542303 B2 JP5542303 B2 JP 5542303B2 JP 2007340987 A JP2007340987 A JP 2007340987A JP 2007340987 A JP2007340987 A JP 2007340987A JP 5542303 B2 JP5542303 B2 JP 5542303B2
Authority
JP
Japan
Prior art keywords
light
light source
component
light receiving
amount
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
JP2007340987A
Other languages
English (en)
Japanese (ja)
Other versions
JP2009162926A (ja
JP2009162926A5 (enExample
Inventor
義浩 勝
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP2007340987A priority Critical patent/JP5542303B2/ja
Priority to US12/314,544 priority patent/US8067894B2/en
Publication of JP2009162926A publication Critical patent/JP2009162926A/ja
Publication of JP2009162926A5 publication Critical patent/JP2009162926A5/ja
Application granted granted Critical
Publication of JP5542303B2 publication Critical patent/JP5542303B2/ja
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
    • 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
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from 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
    • 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
    • G09G3/36—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 liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Planar Illumination Modules (AREA)
JP2007340987A 2007-12-28 2007-12-28 光源システムおよび表示装置 Expired - Fee Related JP5542303B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007340987A JP5542303B2 (ja) 2007-12-28 2007-12-28 光源システムおよび表示装置
US12/314,544 US8067894B2 (en) 2007-12-28 2008-12-12 Light source system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007340987A JP5542303B2 (ja) 2007-12-28 2007-12-28 光源システムおよび表示装置

Publications (3)

Publication Number Publication Date
JP2009162926A JP2009162926A (ja) 2009-07-23
JP2009162926A5 JP2009162926A5 (enExample) 2011-02-10
JP5542303B2 true JP5542303B2 (ja) 2014-07-09

Family

ID=40797338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007340987A Expired - Fee Related JP5542303B2 (ja) 2007-12-28 2007-12-28 光源システムおよび表示装置

Country Status (2)

Country Link
US (1) US8067894B2 (enExample)
JP (1) JP5542303B2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011170219A (ja) * 2010-02-22 2011-09-01 Rohm Co Ltd 発光駆動装置、照明装置、表示装置
JP5162013B1 (ja) * 2011-08-31 2013-03-13 株式会社東芝 光源装置、駆動装置及び電子機器
JP5901390B2 (ja) * 2012-03-30 2016-04-06 キヤノン株式会社 発光装置及びそのキャリブレーション方法
JP6108150B2 (ja) * 2012-07-10 2017-04-05 東芝ライテック株式会社 照明制御システム
JP2014035524A (ja) * 2012-08-10 2014-02-24 Canon Inc 画像表示装置及びその制御方法
DE102012016675B4 (de) * 2012-08-23 2015-02-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Farbkalibrierung eines Farbmonitors mit LED-Hintergrundbeleuchtung
US9480122B2 (en) 2013-05-15 2016-10-25 Ams Ag Optical sensor circuit, luminous panel and method for operating an optical sensor circuit
EP2804047A1 (en) * 2013-05-15 2014-11-19 Ams Ag Optical sensor circuit, luminous panel and method for operating an optical sensor circuit
EP2900037A1 (en) * 2014-01-22 2015-07-29 ams AG Optical sensor circuit, luminous panel and method for operating an optical sensor circuit
US9451667B2 (en) 2013-05-15 2016-09-20 Ams Ag Optical sensor circuit, luminous panel and method of operating an optical sensor circuit
JP2017044773A (ja) * 2015-08-25 2017-03-02 キヤノン株式会社 表示装置及び照射光制御方法
WO2018066980A1 (ko) 2016-10-04 2018-04-12 김기백 영상 데이터 부호화/복호화 방법 및 장치
EP3309581B1 (en) * 2016-10-12 2025-11-26 STMicroelectronics (Research & Development) Limited Apparatus for controlling driver current for illumination source
US12081063B2 (en) 2021-07-12 2024-09-03 PassiveLogic, Inc. Device energy use determination
US12250099B2 (en) * 2021-09-08 2025-03-11 PassiveLogic, Inc. External activation of quiescent device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010001749A (ko) * 1999-06-08 2001-01-05 윤종용 무선 단말기의 라이트 밝기 조절 장치 및 방법
JP4355977B2 (ja) 1999-11-12 2009-11-04 ソニー株式会社 映像表示装置および映像表示装置における照明制御方法
US6490037B1 (en) * 2000-11-13 2002-12-03 Test Coach Corporation Method and apparatus for verifying a color of an LED in a printed circuit board
JP3829662B2 (ja) * 2001-07-31 2006-10-04 松下電工株式会社 光入力変換装置
JP4099496B2 (ja) 2002-03-01 2008-06-11 シャープ株式会社 発光装置並びに該発光装置を用いた表示装置及び読み取り装置
AU2003211809A1 (en) * 2002-03-01 2003-09-16 Sharp Kabushiki Kaisha Light emitting device and display unit using the light emitting device and reading device
US7002546B1 (en) * 2002-05-15 2006-02-21 Rockwell Collins, Inc. Luminance and chromaticity control of an LCD backlight
JP3987772B2 (ja) * 2002-08-12 2007-10-10 アルパイン株式会社 バックライトの輝度制御方法および装置
US7863829B2 (en) * 2004-12-30 2011-01-04 Solarone Solutions, Inc. LED lighting system
FR2894682B1 (fr) * 2005-12-13 2008-02-15 Essilor Int Afficheur destine a etre monte sur une paire de lunettes
JP2009519486A (ja) * 2005-12-13 2009-05-14 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 周囲光の検出を伴う表示装置
JP5172128B2 (ja) * 2006-03-30 2013-03-27 シャープ株式会社 バックライト装置、表示装置、バックライト装置の駆動方法

Also Published As

Publication number Publication date
JP2009162926A (ja) 2009-07-23
US8067894B2 (en) 2011-11-29
US20090167195A1 (en) 2009-07-02

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