BRPI0812402B1 - Dispositivo de exibição de imagem compreendendo dois estágios de modulação - Google Patents

Dispositivo de exibição de imagem compreendendo dois estágios de modulação Download PDF

Info

Publication number
BRPI0812402B1
BRPI0812402B1 BRPI0812402-7A BRPI0812402A BRPI0812402B1 BR PI0812402 B1 BRPI0812402 B1 BR PI0812402B1 BR PI0812402 A BRPI0812402 A BR PI0812402A BR PI0812402 B1 BRPI0812402 B1 BR PI0812402B1
Authority
BR
Brazil
Prior art keywords
optical
valve
backlight
transmission
emitter
Prior art date
Application number
BRPI0812402-7A
Other languages
English (en)
Portuguese (pt)
Inventor
Louis Chevallier
Jonathan Kervec
Jean-Ronan Vigouroux
Pascal Benoit
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0812402A2 publication Critical patent/BRPI0812402A2/pt
Publication of BRPI0812402B1 publication Critical patent/BRPI0812402B1/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
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • 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
    • 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
    • G09G3/3433—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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic 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
    • 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
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • 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
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/066—Adjustment of display parameters for control of contrast
    • 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
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • 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)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
BRPI0812402-7A 2007-06-13 2008-06-10 Dispositivo de exibição de imagem compreendendo dois estágios de modulação BRPI0812402B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0755743 2007-06-13
FR0755743 2007-06-13
PCT/EP2008/057242 WO2008155265A1 (fr) 2007-06-13 2008-06-10 Dispositif d'affichage d'images comprenant deux étages de modulation

Publications (2)

Publication Number Publication Date
BRPI0812402A2 BRPI0812402A2 (pt) 2014-12-02
BRPI0812402B1 true BRPI0812402B1 (pt) 2019-02-26

Family

ID=38561990

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0812402-7A BRPI0812402B1 (pt) 2007-06-13 2008-06-10 Dispositivo de exibição de imagem compreendendo dois estágios de modulação

Country Status (8)

Country Link
US (1) US11488545B2 (enExample)
EP (1) EP2153432B1 (enExample)
JP (1) JP2010530986A (enExample)
KR (1) KR101532309B1 (enExample)
CN (1) CN101681600B (enExample)
BR (1) BRPI0812402B1 (enExample)
MX (1) MX2009013642A (enExample)
WO (1) WO2008155265A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4528861B2 (ja) * 2009-01-19 2010-08-25 シャープ株式会社 画像表示装置及び画像表示方法
KR101983312B1 (ko) * 2012-08-02 2019-05-29 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
US9940881B2 (en) * 2013-03-08 2018-04-10 Dolby Laboratories Licensing Corporation Techniques for dual modulation display with light conversion
CN110085639A (zh) * 2019-04-23 2019-08-02 深圳市华星光电半导体显示技术有限公司 发光面板、发光面板的制备方法及显示装置

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB401064A (en) 1932-07-29 1933-11-09 Claude General Neon Lights Ltd Improvements in electric signs
US5839823A (en) 1996-03-26 1998-11-24 Alliedsignal Inc. Back-coupled illumination system with light recycling
WO1997038347A1 (en) 1996-04-10 1997-10-16 Cambridge Display Technology Limited Efficient backlighting for lcds
FR2764086B1 (fr) 1997-05-27 1999-07-09 Thomson Multimedia Sa Perfectionnement au systeme d'eclairage arriere pour modulateur electro-optique transmissif
JPH11231131A (ja) 1998-02-12 1999-08-27 Nitto Denko Corp 光散乱シート、スクリーン及び液晶表示装置
JP4519251B2 (ja) * 1999-10-13 2010-08-04 シャープ株式会社 液晶表示装置およびその制御方法
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
US6608614B1 (en) 2000-06-22 2003-08-19 Rockwell Collins, Inc. Led-based LCD backlight with extended color space
JP2002287686A (ja) 2001-03-28 2002-10-04 Sony Corp 画像表示装置及び画像表示方法
US20020159002A1 (en) * 2001-03-30 2002-10-31 Koninklijke Philips Electronics N.V. Direct backlighting for liquid crystal displays
US7064740B2 (en) 2001-11-09 2006-06-20 Sharp Laboratories Of America, Inc. Backlit display with improved dynamic range
KR20040041941A (ko) 2002-11-12 2004-05-20 삼성전자주식회사 액정 표시 장치 및 그 구동 방법
JP2004191490A (ja) * 2002-12-09 2004-07-08 Hitachi Displays Ltd 液晶表示装置
CN1220095C (zh) 2003-01-23 2005-09-21 浙江大学 像素式投影显示器的图像栅格去除方法及系统
JP2004235103A (ja) 2003-01-31 2004-08-19 Sumitomo Rubber Ind Ltd 直下型バックライト
JP2004295080A (ja) 2003-03-13 2004-10-21 Takiron Co Ltd 光拡散シート
US7591563B2 (en) 2004-01-15 2009-09-22 Au Optronics Corporation Backlight device for display system providing enhanced peripheral illumination
JP4612406B2 (ja) * 2004-02-09 2011-01-12 株式会社日立製作所 液晶表示装置
JP2005309338A (ja) 2004-04-26 2005-11-04 Mitsubishi Electric Corp 画像表示装置および画像表示方法
US7012382B2 (en) 2004-04-30 2006-03-14 Tak Meng Cheang Light emitting diode based light system with a redundant light source
US7339332B2 (en) * 2004-05-24 2008-03-04 Honeywell International, Inc. Chroma compensated backlit display
US7643095B2 (en) 2004-05-28 2010-01-05 Sharp Kabushiki Kaisha Image display device, image display method, and television receiver
WO2006010249A1 (en) 2004-07-27 2006-02-02 The University Of British Columbia Diffuser for light from light source array and displays incorporating same
DE602004024895D1 (de) 2004-10-25 2010-02-11 Barco Nv Optische Korrektur für Leuchtpaneele mit hoher Gleichmäßigkeit
JP4539492B2 (ja) 2004-11-19 2010-09-08 ソニー株式会社 バックライト装置、バックライト駆動方法及び液晶表示装置
US7301592B2 (en) 2004-11-19 2007-11-27 Rohm And Haas Denmark Finance A/S Dark state light recycling film and display
JP4432818B2 (ja) * 2005-04-01 2010-03-17 セイコーエプソン株式会社 画像表示装置、画像表示方法、および画像表示プログラム
JP5345271B2 (ja) 2005-04-08 2013-11-20 三菱電機株式会社 画像表示装置
KR101158897B1 (ko) 2005-04-29 2012-06-25 삼성전자주식회사 액정표시장치
JP5134768B2 (ja) 2005-05-19 2013-01-30 株式会社ジャパンディスプレイイースト 画像表示装置
WO2007000013A1 (en) 2005-06-28 2007-01-04 John Chisholm Utility holder
US20070052036A1 (en) * 2005-09-02 2007-03-08 Hongfa Luan Transistors and methods of manufacture thereof
US20070274093A1 (en) * 2006-05-25 2007-11-29 Honeywell International, Inc. LED backlight system for LCD displays
US20080151139A1 (en) * 2006-12-22 2008-06-26 Itt Manufacturing Enterprises, Inc. Addressable backlight for LCD panel

Also Published As

Publication number Publication date
US11488545B2 (en) 2022-11-01
CN101681600B (zh) 2013-07-03
JP2010530986A (ja) 2010-09-16
EP2153432B1 (fr) 2012-09-12
US20120113152A1 (en) 2012-05-10
BRPI0812402A2 (pt) 2014-12-02
WO2008155265A1 (fr) 2008-12-24
CN101681600A (zh) 2010-03-24
KR20100021450A (ko) 2010-02-24
KR101532309B1 (ko) 2015-07-09
EP2153432A1 (fr) 2010-02-17
MX2009013642A (es) 2010-02-17

Similar Documents

Publication Publication Date Title
EP2466994B1 (en) Quantum dot modulation for displays
DK2389670T3 (en) DEVICE AND METHODS OF COLOR DISPLAYS
US7692866B2 (en) Display systems with and methods for multiple source colour illumination
US20140043371A1 (en) Display control for multi-primary display
CN102648435A (zh) 显示装置
CN101313171A (zh) 具有多组光源的照明系统
CN101632113A (zh) 具有空间可变背光的显示器的校准
CN101399032A (zh) 有亮度及色温控制系统的显示装置与亮度及色温控制方法
US20080297530A1 (en) Four primary color display apparatus and method
CN206684429U (zh) 一种彩膜基板、液晶面板及液晶模组
US12112695B2 (en) Display systems and methods with multiple and/or adaptive primary colors
CN107864369B (zh) Led显示屏复合显示采集方法
US11488545B2 (en) Device for displaying images comprising two modulation stages
CN104776351B (zh) 显示装置及显示装置的光源校正方法
JP2010530986A5 (enExample)
CN115798402B (zh) 一种基于像素复用的亮度补偿方法
JP2010217217A (ja) Ｌｅｄバックライトの白色調整装置
JP2019020664A (ja) 表示装置
CN201185076Y (zh) 一种液晶显示装置、背光模组及背光源
EP4390658A1 (en) Display systems and methods with multiple and/or adaptive primary colors
JPH0895044A (ja) 液晶表示装置
HK1261056B (en) Apparatus and methods for color displays
HK1261056A1 (en) Apparatus and methods for color displays
Kirk Standard Colour Spaces
HK1261055B (en) Apparatus and methods for color displays

Legal Events

Date Code Title Description
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 26/02/2019, OBSERVADAS AS CONDICOES LEGAIS.

B25G Requested change of headquarter approved

Owner name: THOMSON LICENSING (FR)

B25A Requested transfer of rights approved

Owner name: THOMSON LICENSING DTV (FR)

B25A Requested transfer of rights approved

Owner name: INTERDIGITAL MADISON PATENT HOLDINGS (FR)