WO2008102706A1 - 光源装置および液晶表示装置 - Google Patents

光源装置および液晶表示装置 Download PDF

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Publication number
WO2008102706A1
WO2008102706A1 PCT/JP2008/052555 JP2008052555W WO2008102706A1 WO 2008102706 A1 WO2008102706 A1 WO 2008102706A1 JP 2008052555 W JP2008052555 W JP 2008052555W WO 2008102706 A1 WO2008102706 A1 WO 2008102706A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light source
environment
liquid crystal
crystal display
Prior art date
Application number
PCT/JP2008/052555
Other languages
English (en)
French (fr)
Inventor
Mitsuru Okabe
Original Assignee
Sony Corporation
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 Corporation filed Critical Sony Corporation
Priority to US12/449,679 priority Critical patent/US20100013866A1/en
Priority to EP08711385A priority patent/EP2128687A4/en
Publication of WO2008102706A1 publication Critical patent/WO2008102706A1/ja

Links

Classifications

    • 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
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13318—Circuits comprising a 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude 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
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • 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
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

　本発明の目的は、表示映像の内容によらず、周囲の環境の明るさ（環境光）を考慮して表示映像の輝度分布を調整することが可能な光源装置を提供することにある。外光センサ（１６）は、装置周囲の外光（環境光Ｌｓ）を受光する。 そして受光した環境光Ｌｓの光量に応じて、バックライト制御部（１２）が光源部（１０）内の各部分点灯部の発光量をそれぞれ制御する。 また、このような環境光Ｌｓの光量に加え、ＲＧＢプロセス処理部（６０）から供給されるＲＧＢ信号に含まれる映像の輝度情報を加味して各部分点灯部の発光量をそれぞれ制御する。本発明は、バックライト装置を含む透過型の液晶表示装置に適用できる。 
PCT/JP2008/052555 2007-02-23 2008-02-15 光源装置および液晶表示装置 WO2008102706A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/449,679 US20100013866A1 (en) 2007-02-23 2008-02-15 Light source device and liquid crystal display unit
EP08711385A EP2128687A4 (en) 2007-02-23 2008-02-15 LIGHT SOURCE DEVICE AND RELATED LIQUID CRYSTAL DISPLAY DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007044299A JP4720757B2 (ja) 2007-02-23 2007-02-23 光源装置および液晶表示装置
JP2007-044299 2007-02-23

Publications (1)

Publication Number Publication Date
WO2008102706A1 true WO2008102706A1 (ja) 2008-08-28

Family

ID=39709983

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052555 WO2008102706A1 (ja) 2007-02-23 2008-02-15 光源装置および液晶表示装置

Country Status (7)

Country Link
US (1) US20100013866A1 (ja)
EP (1) EP2128687A4 (ja)
JP (1) JP4720757B2 (ja)
KR (1) KR20090114372A (ja)
CN (1) CN101622571A (ja)
TW (1) TW200903439A (ja)
WO (1) WO2008102706A1 (ja)

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CN102057420B (zh) * 2008-09-29 2013-11-27 松下电器产业株式会社 背光装置和显示装置
US20120044224A1 (en) * 2009-05-19 2012-02-23 Sharp Kabushiki Kaisha Liquid crystal display device
US8890793B2 (en) * 2010-03-26 2014-11-18 Hong Kong Applied Science and Technology Research Institute, Co. Ltd. Adjusting a brightness level of a backlight of a display device
US9159270B2 (en) 2010-08-31 2015-10-13 Dolby Laboratories Licensing Corporation Ambient black level
CN101950537A (zh) * 2010-09-27 2011-01-19 彩虹集团公司 一种侧光式白光led背光源控制方法
CN101937652B (zh) * 2010-09-27 2013-07-03 彩虹集团公司 一种直下式白光led背光源背光计算方法
CN101944332A (zh) * 2010-09-27 2011-01-12 彩虹集团公司 直下式白光led背光源背光统计控制方法
CN101950538A (zh) * 2010-09-30 2011-01-19 彩虹集团公司 一种直下式led背光源装置及其驱动方法
JP2013238693A (ja) * 2012-05-14 2013-11-28 Sharp Corp 画像表示装置、画像表示方法及びプログラム
CN103854596A (zh) * 2012-11-29 2014-06-11 利亚德光电股份有限公司 Led显示器
JP6350980B2 (ja) * 2013-10-09 2018-07-04 Ｔｉａｎｍａ Ｊａｐａｎ株式会社 制御回路及び当該制御回路を備えた表示装置
CN106067287B (zh) 2015-04-21 2021-08-27 三星电子株式会社 显示装置以及用于控制该显示装置的方法
EP3424403B1 (en) * 2016-03-03 2024-04-24 Sony Group Corporation Medical image processing device, system, method, and program
EP3731222A4 (en) * 2017-12-19 2021-01-20 Sony Corporation SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD AND DISPLAY DEVICE
US10803787B2 (en) * 2018-08-08 2020-10-13 Dell Products, L.P. Method and apparatus for blue light management via a variable light emitting diode input
CN114120898B (zh) * 2020-08-31 2023-02-24 北京小米移动软件有限公司 亮度调节方法、亮度调节装置及计算机可读存储介质
CN115437147A (zh) 2021-06-02 2022-12-06 群创光电股份有限公司 车用光学系统的操作方法
WO2023122879A1 (zh) * 2021-12-27 2023-07-06 京东方科技集团股份有限公司 背光控制电路及其控制方法、显示装置
CN114420061B (zh) * 2022-01-27 2023-05-23 深圳Tcl数字技术有限公司 屏幕亮度调节方法、装置、存储介质及显示设备

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JP2005258403A (ja) * 2004-02-09 2005-09-22 Hitachi Ltd 照明装置とこれを備えた画像表示装置及び画像表示方法
WO2005119639A1 (en) 2004-06-01 2005-12-15 Koninklijke Philips Electronics N.V. Display device comprising a light source
JP2006147573A (ja) * 2004-11-17 2006-06-08 Samsung Electronics Co Ltd 面光源装置、それを有する表示装置及びその制御方法
JP2006145886A (ja) 2004-11-19 2006-06-08 Sony Corp 表示装置及びその制御方法
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Also Published As

Publication number Publication date
US20100013866A1 (en) 2010-01-21
JP4720757B2 (ja) 2011-07-13
KR20090114372A (ko) 2009-11-03
TW200903439A (en) 2009-01-16
CN101622571A (zh) 2010-01-06
JP2008209508A (ja) 2008-09-11
EP2128687A4 (en) 2011-03-02
EP2128687A1 (en) 2009-12-02

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