Optical film including a reverse prism

An optical film, a backlight unit and a liquid crystal display device are provided. According to one embodiment of the present disclosure, an optical film may include: a base film including a first surface facing a light source and a second surface facing a direction opposite to the first surface; a...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, DONG-KYU, PARK, HYUN-UK, LEE, BYEONG-HUN, KIM, JIN-HWAN
Format:	Patent
Sprache:	chi ; eng
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 ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	An optical film, a backlight unit and a liquid crystal display device are provided. According to one embodiment of the present disclosure, an optical film may include: a base film including a first surface facing a light source and a second surface facing a direction opposite to the first surface; an inverted prism pattern layer including a plurality of prism patterns formed on the first surface of the base film; and a rough pattern layer including a plurality of rough patterns formed on the second surface of the base film, the optical film is formed such that an average value of pitches of the prism patterns of the inverted prism pattern layer exceeds a range of a pre-specified trusted interval with respect to a surface roughness average interval (Rsm) measured in the rough pattern layer.