An array substrate and a display apparatus including the array substrate are provided. Various embodiments additionally provide color coded cutting thread tap tools adapted to lockably engage with the adaptive drive shank and have color coding identifying the taps tool thread standard. The cell body has an accommodating space, and the circuit board is located therein. A user-specific T2P ratio PB,kPRS for certain OFDM symbols, a RS overhead ratio \u03b7RS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. The transformer converts a transmission or a sub-transmission voltage into a distribution voltage. The imaging engine is an integrated circuit package configured for easily interfacing within an optical code reader as a plug-and-play component.