Abstract: An apparatus and method for measuring air currents on the surface of a substrate, which can accurately measure the magnitude and direction of air currents on the surface of a wafer with wafer-type air current measurement sensors, are provided. The apparatus includes: a first air current measurement module measuring a magnitude of air currents on a surface of a first substrate, which is processed in accordance with a semiconductor manufacturing process; a second air current measurement module measuring a movement direction of the air currents; and a power module supplying power to the first and second air current measurement modules, wherein the first air current measurement module, the second air current measurement module, and the power module are mounted on a second substrate, which has the same shape as the first substrate.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present disclosure relates to a touch system and a method for selectively operating firmware. In particular, it relates to a touch system and a method for selectively operating touch firmware in a touch device by storing a number of pieces of touch firmware supporting a number of host operating systems (OS) respectively in different storing areas of a nonvolatile memory, identifying a host OS installed in the host through communication with the host, and selectively operating the touch firmware supporting the identified host OS.

Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present disclosure relates to a touch system and a method for selectively operating firmware. In particular, it relates to a touch system and a method for selectively operating touch firmware in a touch device by storing a number of pieces of touch firmware supporting a number of host operating systems (OS) respectively in different storing areas of a nonvolatile memory, identifying a host OS installed in the host through communication with the host, and selectively operating the touch firmware supporting the identified host OS.