OPTICAL SHEET AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME

The present invention relates to an optical sheet which may be used in a liquid crystal display device, and more specifically, the present invention comprises: a base layer; a diffusion layer including a binder resin and a light diffusing particle by being formed in one surface of the base layer; an...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, YOUNG SHIN, YOON, YOUNG SEO, YOO, SUL AH
Format:	Patent
Sprache:	eng ; kor
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:	The present invention relates to an optical sheet which may be used in a liquid crystal display device, and more specifically, the present invention comprises: a base layer; a diffusion layer including a binder resin and a light diffusing particle by being formed in one surface of the base layer; an intaglio patterned layer formed in other surface of the base layer by having an intaglio pattern. The light diffusing particle of the optical sheet of the present invention includes a pore and/or a concave-convex surface on the surface. Provided in the present invention are an optical sheet simultaneously having excellent brightness characteristic, viewing angle characteristic, and masking property; and enhancing light uniformity of a back light unit (BLU), and liquid crystal display device including the same. 본 발명은 액정표시장치(Liquid Crystal Display) 등에 사용할 수 있는 광학시트에 관한 것으로서, 더욱 상세하게는 기재층; 상기 기재층의 일면에 형성되며, 바인더 수지와 광확산성 입자를 포함하는 확산층; 및 상기 기재층의 다른 일면에 형성되며 음각 패턴이 형성된 음각 패턴층을 포함하며, 상기 광확산성 입자는 표면에 기공 및/또는 요철이 형성된 것을 특징으로 하는 광학시트에 관한 것이다. 본 발명에 의하면 우수한 휘도특성, 시야각 특성 및 은폐성을 동시에 나타내어, 백라이트 유닛(BLU)의 광균일도를 개선하는 광학시트와 이를 포함하는 액정표시장치를 제공할 수 있다.