A LCD unit includes a plurality of LC panels stacked one on another. A current first parameter value is determined from an index corresponding to at least the first parameter. The invention also relates to a coating booth. The use of the integrated microarray devices for detecting interactions among various moieties in various fields, such as clinical diagnostics, drug discovery, environmental monitoring and forensic analysis, etc. The method and system comprise the steps of recovering an aromatics fraction from the feedstock prior to reforming. This composition is a chemically amplified positive resist composition that can be applied to a resist having a reduced thickness, is excellent in dry-etching resistance and definition and can form a patterned resist with a good sectional shape.