A display apparatus includes a display board and at least one image generating device. The display board has at least one display region, which includes a substrate, a decorative film, and a holographic optical element film. The decorative film is disposed...

A wireless rechargeable battery includes a housing, a circuit module, an energy storage unit, and a plurality of electrodes. The wireless rechargeable battery is adapted to be disposed on a wireless charging device to be wirelessly charged. The circuit mod...