DE69837976D1 - Fotodetektor für LCD und Beleuchtungssteuerung dafür - Google Patents

Fotodetektor für LCD und Beleuchtungssteuerung dafür

Info

Publication number
DE69837976D1
DE69837976D1 DE69837976T DE69837976T DE69837976D1 DE 69837976 D1 DE69837976 D1 DE 69837976D1 DE 69837976 T DE69837976 T DE 69837976T DE 69837976 T DE69837976 T DE 69837976T DE 69837976 D1 DE69837976 D1 DE 69837976D1
Authority
DE
Germany
Prior art keywords
lcd
lighting control
photo detector
photo
detector
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 - Lifetime
Application number
DE69837976T
Other languages
English (en)
Other versions
DE69837976T2 (de
Inventor
Hiroshi Kawashima
Yoshiyuki Nakashima
Tatsuhisa Nitta
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.)
Eizo Nanao Corp
Original Assignee
Eizo Nanao 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
Priority claimed from JP02044397A external-priority patent/JP3171808B2/ja
Priority claimed from JP02044297A external-priority patent/JP3193315B2/ja
Application filed by Eizo Nanao Corp filed Critical Eizo Nanao Corp
Publication of DE69837976D1 publication Critical patent/DE69837976D1/de
Application granted granted Critical
Publication of DE69837976T2 publication Critical patent/DE69837976T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/58—Arrangements comprising a monitoring photodetector
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
    • 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
    • G09G2320/0606—Manual adjustment
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
    • H01L31/125—Composite devices with photosensitive elements and electroluminescent elements within one single body

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
DE69837976T 1997-02-03 1998-01-30 Fotodetektor für LCD und Beleuchtungssteuerung dafür Expired - Lifetime DE69837976T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP02044397A JP3171808B2 (ja) 1997-02-03 1997-02-03 液晶表示装置の光検出器
JP2044297 1997-02-03
JP02044297A JP3193315B2 (ja) 1997-02-03 1997-02-03 液晶表示装置用バックライトの輝度制御装置
JP2044397 1997-02-03

Publications (2)

Publication Number Publication Date
DE69837976D1 true DE69837976D1 (de) 2007-08-09
DE69837976T2 DE69837976T2 (de) 2008-02-28

Family

ID=26357402

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69837976T Expired - Lifetime DE69837976T2 (de) 1997-02-03 1998-01-30 Fotodetektor für LCD und Beleuchtungssteuerung dafür

Country Status (3)

Country Link
US (1) US6188380B1 (de)
EP (1) EP0861017B1 (de)
DE (1) DE69837976T2 (de)

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US7030551B2 (en) 2000-08-10 2006-04-18 Semiconductor Energy Laboratory Co., Ltd. Area sensor and display apparatus provided with an area sensor
JP2002072998A (ja) * 2000-08-25 2002-03-12 Internatl Business Mach Corp <Ibm> 輝度制御装置、輝度調節システム、コンピュータシステム、液晶ディスプレイ装置、輝度制御方法、コンピュータプログラム及び記憶媒体
DE10057696A1 (de) * 2000-11-21 2002-05-16 Siemens Ag LC-Display und Verfahren zum Steuern der Hinterleuchtung eines LC-Displays
US6747290B2 (en) 2000-12-12 2004-06-08 Semiconductor Energy Laboratory Co., Ltd. Information device
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KR100392460B1 (ko) * 2001-05-21 2003-07-23 삼성전자주식회사 Ｌｃｄ모니터
US20030227435A1 (en) * 2002-06-06 2003-12-11 Chang-Fa Hsieh Method for adjusting and detecting brightness of liquid crystal displays
US7609360B2 (en) * 2002-06-17 2009-10-27 Fujifilm Corporation Image display device
US6734926B2 (en) * 2002-09-13 2004-05-11 Chi Mei Optoelectronics Corporation Display apparatus with a reduced thickness
KR100712334B1 (ko) * 2002-09-30 2007-05-02 엘지전자 주식회사 액정 표시기의 밝기 레벨 조절방법
KR20040041940A (ko) * 2002-11-12 2004-05-20 삼성전자주식회사 액정 표시 장치 및 그 구동 방법
KR100910557B1 (ko) * 2002-11-12 2009-08-03 삼성전자주식회사 액정 표시 장치 및 그 구동 방법
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DE10323221A1 (de) 2003-05-22 2004-12-09 Siemens Ag Anordnung mit einem Panel eines Flachbildschirms
US20040233153A1 (en) * 2003-05-22 2004-11-25 Heber Robinson Communication device with automatic display and lighting activation and method therefore
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US7952555B2 (en) * 2003-11-19 2011-05-31 Eizo Nanao Corporation Luminance control method, liquid crystal display device and computer program
WO2005057275A1 (ja) * 2003-12-08 2005-06-23 Sony Corporation 液晶表示装置およびバックライト調整方法
JP2007522007A (ja) * 2004-02-20 2007-08-09 シャープ株式会社 表示装置、表示装置の制御方法、表示装置の制御プログラムおよび記録媒体
US7342256B2 (en) * 2004-07-16 2008-03-11 Semiconductor Energy Laboratory Co., Ltd. Display device mounted with read function and electric appliance
US7492028B2 (en) * 2005-02-18 2009-02-17 Semiconductor Energy Laboratory Co., Ltd. Photoelectric conversion device and manufacturing method of the same, and a semiconductor device
JP4550638B2 (ja) * 2005-03-22 2010-09-22 シャープ株式会社 面照明装置及びそれを備えた液晶表示装置
EP1724844A2 (de) * 2005-05-20 2006-11-22 Semiconductor Energy Laboratory Co., Ltd. Photoelektrische Umwandlungsvorrichtung, Herstellungsverfahren und Halbleitervorrichtung
EP1908021B1 (de) * 2005-07-18 2018-07-11 Innovative Solutions and Support, Inc. Flugzeug-flachbildschirmsystem
JP4633035B2 (ja) 2006-11-07 2011-02-16 Ｎｅｃディスプレイソリューションズ株式会社 液晶表示装置及び液晶表示装置制御方法
JP2008181109A (ja) * 2006-12-27 2008-08-07 Semiconductor Energy Lab Co Ltd 液晶表示装置及びそれを用いた電子機器
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TW200907926A (en) * 2007-08-06 2009-02-16 Au Optronics Corp Liquid crystal display and the backlight indicating apparathus and method thereof
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US20090251400A1 (en) * 2008-04-02 2009-10-08 Hisense Beiging Electric Co., Ltd. Lcd display method
US8610659B2 (en) 2008-05-12 2013-12-17 Blackberry Limited Method and apparatus for automatic brightness adjustment on a display of a mobile electronic device
JP4809453B2 (ja) 2009-04-15 2011-11-09 株式会社ナナオ 表示装置、表示システム及び補正方法
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JP5542409B2 (ja) * 2009-10-27 2014-07-09 三菱電機株式会社 マルチ画面表示装置
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Also Published As

Publication number Publication date
EP0861017A3 (de) 2001-11-21
US6188380B1 (en) 2001-02-13
EP0861017B1 (de) 2007-06-27
EP0861017A2 (de) 1998-08-26
DE69837976T2 (de) 2008-02-28

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