HIGH EFFICENCY LOW POWER LED BACKLIGHTING SYSTEM FOR LIQUID CRYSTAL DISPLAY

A backlighting system for liquid crystal display provides low power consumption and high efficiency. The backlighting system includes an array of LEDs (1) arranged in a matrix to generate backlight needed to display light and dark colors on the liquid crystal display. The backlighting system emulate...

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Main Authors KVENVOLD, ANTHONY, MARK, HARKAVY, BRAD
Format Patent
LanguageEnglish
French
Published 14.12.2006
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Abstract A backlighting system for liquid crystal display provides low power consumption and high efficiency. The backlighting system includes an array of LEDs (1) arranged in a matrix to generate backlight needed to display light and dark colors on the liquid crystal display. The backlighting system emulates light and dark areas of video images being displayed on the liquid crystal display, selectively backlighting only areas of the liquid crystal display that require backlighting, thereby reducing power consumption. L'invention concerne un système de rétroéclairage pour afficheur à cristaux liquides permettant d'obtenir une faible absorption de puissance et une haute efficacité. Le système de rétroéclairage comprend un réseau de DEL agencé de manière à définir une matrice permettant de générer un rétroéclairage nécessaire pour afficher une lumière et des couleurs sombres sur l'afficheur à cristaux liquides. Le système de rétroéclairage émule la lumière et les zones sombres d'images vidéo affichées sur l'afficheur à cristaux liquides, rétroéclairant sélectivement uniquement des zones de l'afficheur à cristaux liquides qui nécessitent un rétroéclairage, réduisant ainsi la puissance absorbée.
AbstractList A backlighting system for liquid crystal display provides low power consumption and high efficiency. The backlighting system includes an array of LEDs (1) arranged in a matrix to generate backlight needed to display light and dark colors on the liquid crystal display. The backlighting system emulates light and dark areas of video images being displayed on the liquid crystal display, selectively backlighting only areas of the liquid crystal display that require backlighting, thereby reducing power consumption. L'invention concerne un système de rétroéclairage pour afficheur à cristaux liquides permettant d'obtenir une faible absorption de puissance et une haute efficacité. Le système de rétroéclairage comprend un réseau de DEL agencé de manière à définir une matrice permettant de générer un rétroéclairage nécessaire pour afficher une lumière et des couleurs sombres sur l'afficheur à cristaux liquides. Le système de rétroéclairage émule la lumière et les zones sombres d'images vidéo affichées sur l'afficheur à cristaux liquides, rétroéclairant sélectivement uniquement des zones de l'afficheur à cristaux liquides qui nécessitent un rétroéclairage, réduisant ainsi la puissance absorbée.
Author KVENVOLD, ANTHONY, MARK
HARKAVY, BRAD
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Chemistry
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Education
Physics
DocumentTitleAlternate SYSTEME DE RETROECLAIRAGE A DEL FAIBLE PUISSANCE HAUTE EFFICACITE POUR AFFICHEUR A CRISTAUX LIQUIDES
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RelatedCompanies KVENVOLD, ANTHONY, MARK
HARKAVY, BRAD
VERT, INC
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Snippet A backlighting system for liquid crystal display provides low power consumption and high efficiency. The backlighting system includes an array of LEDs (1)...
SourceID epo
SourceType Open Access Repository
SubjectTerms ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DISPLAY
EDUCATION
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEALS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
Title HIGH EFFICENCY LOW POWER LED BACKLIGHTING SYSTEM FOR LIQUID CRYSTAL DISPLAY
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