HIGH EFFICENCY LOW POWER LED BACKLIGHTING SYSTEM FOR LIQUID CRYSTAL DISPLAY

• Main Authors: KVENVOLD, ANTHONY, MARK, HARKAVY, BRAD
• Format: Patent
• Language: English; French
• Published: 14.12.2006
• Subjects: 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

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...