BACKLIGHT UNIT AND DISPLAY DEVICE COMPRISING SAME

The present invention provides a direct type backlight unit (120, 200, 620, 720, 800, 900, 1300, 1400) comprising: a light source (217, 542, 622, 810, 910, 1310, 1410) formed to provide primary light; a quantum dot phosphor film (840) comprising a quantum dot phosphor (841, 941, 1041, 1141, 1241) ex...

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Bibliographische Detailangaben
Hauptverfasser:	CHO, Byoungkwon, CHOI, Moongoo, OH, Jinmok
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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 NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The present invention provides a direct type backlight unit (120, 200, 620, 720, 800, 900, 1300, 1400) comprising: a light source (217, 542, 622, 810, 910, 1310, 1410) formed to provide primary light; a quantum dot phosphor film (840) comprising a quantum dot phosphor (841, 941, 1041, 1141, 1241) excited by the primary light provided from the light source (217, 542, 622, 810, 910, 1310, 1410) to emit secondary light having a wavelength different from a wavelength of the primary light and disposed to be spaced apart from the light source (217, 542, 622, 810, 910, 1310, 1410); and an optical agent (1044, 1144, 1244) absorbing light having a specific wavelength from the primary light or the secondary light.