Abstract: A method for depositing a large-area graphene layer and an apparatus for continuous graphene deposition using the same are disclosed. The method can include forming a titanium (Ti) layer on a substrate by sputtering, reducing the titanium layer by spraying a reductant gas containing a hydrogen gas (H2) and a purge gas onto the titanium layer while moving in a first direction in relation to the substrate and exhausting the reductant gas and the purge gas. The method can also include forming graphene by spraying a reactant gas containing a graphene source and the purge gas onto the titanium layer while moving in a second direction opposite the first direction in relation to the substrate and exhausting the reactant gas and the purge gas.

Abstract: A method for depositing a large-area graphene layer and an apparatus for continuous graphene deposition using the same are disclosed. The method can include forming a titanium (Ti) layer on a substrate by sputtering, reducing the titanium layer by spraying a reductant gas containing a hydrogen gas (H2) and a purge gas onto the titanium layer while moving in a first direction in relation to the substrate and exhausting the reductant gas and the purge gas. The method can also include forming graphene by spraying a reactant gas containing a graphene source and the purge gas onto the titanium layer while moving in a second direction opposite the first direction in relation to the substrate and exhausting the reactant gas and the purge gas.

Abstract: The present invention relates to a calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same. The present invention provides the process of preparing a calcium carbonate having a surface charge, characterized in that it comprises the following steps of: preparing a solution mixture of one or more monomer selected from the group consisting of calcium hydroxide, acrylic acid, acrylamide, or [2-(acryloyloxy)ethyl]-trimethylammonium chloride; removing dissolved gases such as oxygen and carbon dioxide in the said solution by injecting nitrogen (N2) gas; adjusting pH of the said solution; and inducing a reaction by adding polymerization initiator of a high molecule while injecting carbon dioxide to the said mixture.

Abstract: A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.

Abstract: The present invention relates to a calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same. The present invention provides the process of preparing a calcium carbonate having a surface charge, characterized in that it comprises the following steps of: preparing a solution mixture of one or more monomer selected from the group consisting of calcium hydroxide, acrylic acid, acrylamide, or [2-(acryloyloxy)ethyl]-trimethylammonium chloride; removing dissolved gases such as oxygen and carbon dioxide in the said solution by injecting nitrogen (N2) gas; adjusting pH of the said solution; and inducing a reaction by adding polymerization initiator of a high molecule while injecting carbon dioxide to the said mixture.

Abstract: A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.