BRPI0917011A2 - luz traseira e dispositivo de exibição usando a mesma - Google Patents

luz traseira e dispositivo de exibição usando a mesma

Info

Publication number
BRPI0917011A2
BRPI0917011A2 BRPI0917011A BRPI0917011A BRPI0917011A2 BR PI0917011 A2 BRPI0917011 A2 BR PI0917011A2 BR PI0917011 A BRPI0917011 A BR PI0917011A BR PI0917011 A BRPI0917011 A BR PI0917011A BR PI0917011 A2 BRPI0917011 A2 BR PI0917011A2
Authority
BR
Brazil
Prior art keywords
same
display device
rear light
light
display
Prior art date
Application number
BRPI0917011A
Other languages
English (en)
Inventor
Daisuke Takeda
Original Assignee
Sharp Kk
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 Sharp Kk filed Critical Sharp Kk
Publication of BRPI0917011A2 publication Critical patent/BRPI0917011A2/pt

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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133602—Direct backlight
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • 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
    • G02F1/133628—Illuminating devices with cooling means
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Planar Illumination Modules (AREA)
  • Led Devices (AREA)
BRPI0917011A 2008-08-08 2009-07-31 luz traseira e dispositivo de exibição usando a mesma BRPI0917011A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008206087 2008-08-08
PCT/JP2009/063667 WO2010016440A1 (ja) 2008-08-08 2009-07-31 バックライトおよびこれを用いた表示装置

Publications (1)

Publication Number Publication Date
BRPI0917011A2 true BRPI0917011A2 (pt) 2016-02-16

Family

ID=41663660

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0917011A BRPI0917011A2 (pt) 2008-08-08 2009-07-31 luz traseira e dispositivo de exibição usando a mesma

Country Status (7)

Country Link
US (1) US20110109655A1 (pt)
EP (1) EP2309825A4 (pt)
JP (1) JPWO2010016440A1 (pt)
CN (1) CN102090150A (pt)
BR (1) BRPI0917011A2 (pt)
RU (1) RU2011103438A (pt)
WO (1) WO2010016440A1 (pt)

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JP5261056B2 (ja) * 2008-07-28 2013-08-14 パナソニック株式会社 バックライト装置
WO2011004520A1 (ja) * 2009-07-06 2011-01-13 シャープ株式会社 液晶表示装置、及び液晶表示装置の表示制御方法
JP2012003861A (ja) * 2010-06-14 2012-01-05 Casio Comput Co Ltd 定電流回路
US9142157B2 (en) * 2011-01-20 2015-09-22 Apple Inc. Methods for enhancing longevity in electronic device displays
WO2012172879A1 (ja) * 2011-06-14 2012-12-20 コニカミノルタホールディングス株式会社 有機ｅｌ照明器具
JP5721198B2 (ja) * 2011-09-29 2015-05-20 Ｎｅｃディスプレイソリューションズ株式会社 劣化検出回路、表示装置、及び性能劣化検出方法
WO2013046430A1 (ja) * 2011-09-30 2013-04-04 Ｎｅｃディスプレイソリューションズ株式会社 色度補正装置、色度補正方法および表示装置
JP5080681B1 (ja) * 2011-11-18 2012-11-21 株式会社ナナオ 表示装置、コンピュータプログラム、記録媒体及び温度推定方法
JP5232290B2 (ja) * 2011-12-02 2013-07-10 株式会社東芝 携帯型電子機器および輝度制御方法
CN102427647A (zh) * 2011-12-16 2012-04-25 广东朗视光电技术有限公司 自动调整亮度和光色的照明灯
CN102883506B (zh) * 2012-09-21 2014-10-29 东南大学 阵列式led照明灯具中心区域温度动态控制方法
GB2513841A (en) * 2013-04-24 2014-11-12 Isis Technology Ltd Temperature-controlled computing device
CN103606352A (zh) * 2013-11-15 2014-02-26 深圳市华星光电技术有限公司 背光驱动电路及驱动方法、背光模块及液晶显示器
JP2015200720A (ja) * 2014-04-04 2015-11-12 株式会社ジャパンディスプレイ 表示装置、温度情報取得装置及び温度情報取得方法
WO2015188785A1 (en) * 2014-06-12 2015-12-17 Mediatek Inc. Thermal management method and electronic system with thermal management mechanism
JP6469477B2 (ja) * 2015-02-27 2019-02-13 東芝映像ソリューション株式会社 電子機器及び表示制御方法
US9958921B2 (en) * 2015-03-09 2018-05-01 Advanced Micro Devices, Inc. Power management to change power limits based on device skin temperature
CA2886862A1 (en) * 2015-04-01 2016-10-01 Ignis Innovation Inc. Adjusting display brightness for avoiding overheating and/or accelerated aging
CN104797060B (zh) * 2015-05-13 2017-11-10 昂宝电子（上海）有限公司 用于发光二极管照明系统中的温度控制的系统和方法
CN105913812A (zh) * 2016-06-30 2016-08-31 宇龙计算机通信科技(深圳)有限公司 一种调节终端lcd背光亮度的方法、装置以及终端
US10475372B2 (en) 2016-12-28 2019-11-12 Mitsubishi Electric Corporation Light-emitting unit, display device, and multi-display device
CN108538258B (zh) * 2017-03-06 2023-03-24 北京小米移动软件有限公司 调整背光电流的方法及装置、显示设备
DE102017105131A1 (de) 2017-03-10 2018-09-13 Osram Opto Semiconductors Gmbh Verfahren zum Betreiben eines optoelektronischen Bauelements und optoelektronisches Bauelement
JP6950551B2 (ja) * 2018-02-01 2021-10-13 セイコーエプソン株式会社 画像表示装置及びその制御方法
JP2020021842A (ja) * 2018-08-01 2020-02-06 ソニーセミコンダクタソリューションズ株式会社 光源装置、駆動方法、センシングモジュール
KR102532775B1 (ko) * 2018-10-10 2023-05-17 삼성디스플레이 주식회사 표시 장치
CN111081193A (zh) * 2020-01-07 2020-04-28 业成科技（成都）有限公司 显示器及其亮度调整方法
CN111524488B (zh) * 2020-04-13 2021-05-11 广东天波信息技术股份有限公司 一种防止显示屏过热的自适应调节方法及装置
CN112382240A (zh) * 2020-10-30 2021-02-19 Oppo广东移动通信有限公司 背光控制方法、装置、电子设备和可读存储介质
FR3117728B1 (fr) * 2020-12-11 2025-08-01 Valeo Vision Procédé de pilotage en tension pour une source lumineuse pixélisée
US11252800B1 (en) * 2020-12-24 2022-02-15 Elemental LED, Inc. Methods for controlling linear luminaire
CN113066438B (zh) * 2021-03-29 2022-07-22 京东方科技集团股份有限公司 一种亮度补偿装置、方法、及显示装置
JP2022190232A (ja) 2021-06-14 2022-12-26 株式会社ミツトヨ 照明装置
CN116386552B (zh) * 2023-04-11 2025-09-19 深圳创维－Rgb电子有限公司 背光控制方法、系统、终端设备以及存储介质
WO2025009367A1 (ja) * 2023-07-06 2025-01-09 ソニーグループ株式会社 制御装置および制御方法並びに映像装置
CN117095653B (zh) * 2023-09-06 2024-06-11 深圳雅博创新有限公司 一种投影lcd屏保护系统

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KR100714621B1 (ko) * 2006-01-24 2007-05-07 삼성전기주식회사 온도보상기능을 갖는 ｌｅｄ 구동 장치
KR20070079455A (ko) * 2006-02-02 2007-08-07 삼성전자주식회사 복수 개의 발광소자를 구비한 백라이트 유닛 및 그 제어방법
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JP2007317479A (ja) * 2006-05-25 2007-12-06 Epson Imaging Devices Corp 照明装置、電気光学装置及び電子機器
JP2008097864A (ja) * 2006-10-06 2008-04-24 Harison Toshiba Lighting Corp バックライト装置及びバックライト装置の駆動方法
KR20080034294A (ko) * 2006-10-16 2008-04-21 삼성전자주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
US20080136770A1 (en) * 2006-12-07 2008-06-12 Microsemi Corp. - Analog Mixed Signal Group Ltd. Thermal Control for LED Backlight
CN101763838B (zh) * 2010-01-15 2013-11-06 友达光电股份有限公司 背光模块以及设定其驱动电流的方法

Also Published As

Publication number Publication date
EP2309825A4 (en) 2011-10-05
US20110109655A1 (en) 2011-05-12
WO2010016440A1 (ja) 2010-02-11
CN102090150A (zh) 2011-06-08
EP2309825A1 (en) 2011-04-13
JPWO2010016440A1 (ja) 2012-01-19
RU2011103438A (ru) 2012-08-10

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2373 DE 28-06-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.