BACKLIGHT UNIT

• Main Author: LEE BYONG-GON
• Format: Patent
• Language: English
• Published: 27.05.2010
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; 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; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; FREQUENCY-CHANGING; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a backlight unit which raises optical efficiency. SOLUTION: The backlight unit includes first and second substrates 110, 171 formed to face each other, a first electrode 120 formed on the first substrate, a second electrode 140 arranged so as to be electrically isolated from the first electrode, an electron emission source 150 formed by electrically connected with the first electrode, a phosphor layer 175 formed on the second substrate and arranged at a location facing to the electron emission source, a third electrode 173 for accelerating an electron emitted from the electron emission source facing to the phosphor layer, and a wire grid polarizing plate 180 formed on one side of the second substrate and polarizing light emitted from the phosphor layer. COPYRIGHT: (C)2010,JPO&INPIT