WO2009063874A1 - Dispositif de rétroéclairage et dispositif d'affichage à cristaux liquides l'utilisant - Google Patents

Dispositif de rétroéclairage et dispositif d'affichage à cristaux liquides l'utilisant Download PDF

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Publication number
WO2009063874A1
WO2009063874A1 PCT/JP2008/070520 JP2008070520W WO2009063874A1 WO 2009063874 A1 WO2009063874 A1 WO 2009063874A1 JP 2008070520 W JP2008070520 W JP 2008070520W WO 2009063874 A1 WO2009063874 A1 WO 2009063874A1
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
liquid crystal
crystal display
backlight
emitting diode
Prior art date
Application number
PCT/JP2008/070520
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Adachi
Original Assignee
Mitsumi Electric Co., Ltd.
Atrc 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
Priority claimed from JP2008270221A external-priority patent/JP4956520B2/ja
Application filed by Mitsumi Electric Co., Ltd., Atrc Corporation filed Critical Mitsumi Electric Co., Ltd.
Priority to US12/738,071 priority Critical patent/US8766905B2/en
Priority to CN200880112493.0A priority patent/CN101868818B/zh
Publication of WO2009063874A1 publication Critical patent/WO2009063874A1/fr

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
    • 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
    • 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
    • G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0221—Addressing of scan or signal lines with use of split matrices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention porte sur un dispositif de rétroéclairage qui éclaire un panneau d'affichage à cristaux liquides à partir de la surface arrière à l'aide d'une diode électroluminescente en tant que source de lumière. Une ligne de diodes électroluminescentes est composée d'une pluralité de diodes électroluminescentes agencées de façon linéaire, et une pluralité de lignes de diodes électroluminescentes est agencée à des intervalles prescrits sur un substrat de rétroéclairage. Le dispositif de rétroéclairage comporte des moyens de réglage de région divisée pour diviser l'écran entier du substrat de rétroéclairage en une pluralité de régions divisées et régler de façon discrète la dimension de la région divisée.
PCT/JP2008/070520 2007-11-13 2008-11-11 Dispositif de rétroéclairage et dispositif d'affichage à cristaux liquides l'utilisant WO2009063874A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/738,071 US8766905B2 (en) 2007-11-13 2008-11-11 Backlight device having a light emitting diode driving part and liquid crystal displaying device using the backlight device
CN200880112493.0A CN101868818B (zh) 2007-11-13 2008-11-11 背光装置以及使用该背光装置的液晶显示装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007294189 2007-11-13
JP2007-294189 2007-11-13
JP2008270221A JP4956520B2 (ja) 2007-11-13 2008-10-20 バックライト装置及びこれを用いた液晶表示装置
JP2008-270221 2008-10-20

Publications (1)

Publication Number Publication Date
WO2009063874A1 true WO2009063874A1 (fr) 2009-05-22

Family

ID=40638723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/070520 WO2009063874A1 (fr) 2007-11-13 2008-11-11 Dispositif de rétroéclairage et dispositif d'affichage à cristaux liquides l'utilisant

Country Status (1)

Country Link
WO (1) WO2009063874A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102081258A (zh) * 2009-11-30 2011-06-01 乐金显示有限公司 液晶显示器及其局部调光控制方法
JP2011134555A (ja) * 2009-12-24 2011-07-07 Mitsubishi Electric Corp Ｌｅｄ照明装置
US9009053B2 (en) 2008-11-10 2015-04-14 Google Inc. Multisensory speech detection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007003805A (ja) * 2005-06-23 2007-01-11 Hitachi Displays Ltd 照明装置及びこれを備えた表示装置
JP2007086390A (ja) * 2005-09-22 2007-04-05 Sharp Corp Ｌｅｄバックライト装置及び液晶表示装置
JP2008070558A (ja) * 2006-09-13 2008-03-27 Sharp Corp 透過型ディスプレイ装置、およびその表示制御方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007003805A (ja) * 2005-06-23 2007-01-11 Hitachi Displays Ltd 照明装置及びこれを備えた表示装置
JP2007086390A (ja) * 2005-09-22 2007-04-05 Sharp Corp Ｌｅｄバックライト装置及び液晶表示装置
JP2008070558A (ja) * 2006-09-13 2008-03-27 Sharp Corp 透過型ディスプレイ装置、およびその表示制御方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9009053B2 (en) 2008-11-10 2015-04-14 Google Inc. Multisensory speech detection
CN102081258A (zh) * 2009-11-30 2011-06-01 乐金显示有限公司 液晶显示器及其局部调光控制方法
US20110128302A1 (en) * 2009-11-30 2011-06-02 Byoungchul Cho Liquid crystal display and local dimming control control method thereof
US8427418B2 (en) * 2009-11-30 2013-04-23 Lg Display Co., Ltd. Liquid crystal display and local dimming control control method thereof
US20130215161A1 (en) * 2009-11-30 2013-08-22 Lg Display Co., Ltd. Liquid crystal display and local dimming control method thereof
US9240144B2 (en) * 2009-11-30 2016-01-19 Lg Display Co., Ltd. Liquid crystal display and local dimming control method thereof
JP2011134555A (ja) * 2009-12-24 2011-07-07 Mitsubishi Electric Corp Ｌｅｄ照明装置

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