OPTICAL SHEET AND DISPLAY DEVICE COMPRISING SAME AND PROCESS FOR FORMING THE OPTICAL SHEET

An optical sheet according to an embodiment of the invention comprises a base layer, and a prism sheet comprising a prism pattern layer disposed on the base layer, wherein the prism pattern layer comprises a light absorber that selectively absorbs light in a specific wavelength band, and the light a...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Tae Hoon, CHA, Hyo Gil, CHO, Kyoo Choong, CHOE, Yong Jae
Format:	Patent
Sprache:	eng ; fre ; ger
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 FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	An optical sheet according to an embodiment of the invention comprises a base layer, and a prism sheet comprising a prism pattern layer disposed on the base layer, wherein the prism pattern layer comprises a light absorber that selectively absorbs light in a specific wavelength band, and the light absorber comprises at least one organic dye. An optical sheet according to another embodiment of the invention comprises a base layer, a prism sheet comprising a prism pattern layer disposed on the base layer, and a light diffusion layer disposed under the prism sheet, wherein the prism pattern layer comprises a light absorber that selectively absorbs light in a specific wavelength band. In the optical sheet according to an embodiment of the invention, at least one organic dye that selectively absorbs light in a specific wavelength band is added to a prism pattern layer, whereby it is possible to provide an optical sheet by a simpler manufacturing process than before, in which the color gamut is enhanced while a decrease in luminance due to light absorption is minimized. In addition, it is possible to secure optical and mechanical properties while preventing a degradation of organic dyes due to UV curing by adjusting the composition of the prism pattern layer.