OPTICAL SHEET AND DISPLAY DEVICE COMPRISING THE SAME

To provide an optical sheet which features superior luminance and processability while offering the enhanced color gamut, and to provide a method of manufacturing the same and a display device comprising the same.SOLUTION: An optical sheet 11 provided herein comprises prism sheets 210, 220 consisting of base material layers 211, 221 and prism pattern layers 212, 222 disposed on the respective base material layers. The prism pattern layers contain a light absorbent designed to selectively absorb light in a specific wavelength band, the light absorbent containing at least one organic dye. Such an arrangement makes it possible to produce an optical sheet with enhanced color gamut and minimized reduction in luminance associated with light absorption through a simpler manufacturing process. It is possible to secure optical and mechanical properties while preventing degradation of organic dyes due to UV curing by adjusting the composition of the prism pattern layers.SELECTED DRAWING: Figure 4 【課題】色領域を向上させながらも、輝度および工程性にも優れる光学シート、その製造方法、およびこれを含む表示装置を提供する。【解決手段】光学シート１１は、基材層２１１、２２１と、基材層の上に配置されるプリズムパターン層２１２、２２２とを含むプリズムシート２１０、２２０を含み、プリズムパターン層が特定波長帯域の光を選択的に吸収する光吸収剤を含み、光吸収剤が１種以上の有機染料を含む。これにより、従来よりも単純な製造工程によっても、色領域を向上させながらも光吸収による輝度の低下が最小化され得る。また、プリズムパターン層の組成を調節して、ＵＶ硬化による有機染料の劣化を防止しながら、光学的特性と機械的特性を確保し得る。【選択図】図４