Abstract: In the optical sheet according to an embodiment, 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.

Abstract: The present invention relates to polycyclic aromatic hydrocarbon-based compounds, for a molecular electronic device, enabling molecular rectification, and molecular electronic devices comprising a molecular layer formed by means of the compounds self-assembled on an electrode. The compounds according to the present invention can realize rectifying properties by being introduced between electrodes and thus enable a high rectification ratio by means of low voltage driving, and thus can be substituted for a silicon-based diode device and, more particularly, can be utilized for a wearable device, Bluetooth, an IoT enabling device and the like which require low voltage driving.

Abstract: A synchronization method and apparatus for synchronizing data at synchronization intervals configured individually for respective data objects in a portable terminal is provided. The synchronization method includes configuring respective synchronization intervals of a plurality of data objects, and synchronizing the data objects the respective synchronization intervals. The data synchronization method and apparatus allows for setting of respective synchronization intervals to a first value for the data that are changed frequently and a second value for the data that are not changed frequently. Also, the data synchronization method and apparatus is capable of configuring the synchronization intervals of the data objects according to properties of the data objects so as to reduce unnecessary data synchronization attempts.