DIRECT TYPE BACKLIGHT MODULE

PROBLEM TO BE SOLVED: To provide a direct type backlight module in which unevenness of luminance (dark spot) occurring between two adjoining light emitting units (for example, cold cathode fluorescent lamp) is improved, and luminance and uniformity of a flat surface backlight light source can be imp...

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Bibliographische Detailangaben
Hauptverfasser:	RYU MEITATSU, KUO HAO JAN
Format:	Patent
Sprache:	eng
Schlagworte:	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 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 LOGIC ELEMENTS OPTICS PHYSICS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a direct type backlight module in which unevenness of luminance (dark spot) occurring between two adjoining light emitting units (for example, cold cathode fluorescent lamp) is improved, and luminance and uniformity of a flat surface backlight light source can be improved. SOLUTION: The direct type backlight module comprises a plurality of light emitting units, and the flux of light from these light emitting units irradiates on a diffusion plate after being reflected by a reflecting plate, or directly, and is used as a flat surface backlight light source. An optical compensation unit is additionally installed between the two adjoining light emitting units, thereby the unevenness of luminance (dark spot) occurring between the two adjoining light emitting units is improved and the luminance and uniformity of the flat surface backlight light source are improved. COPYRIGHT: (C)2006,JPO&NCIPI