Abstract: An array substrate, a preparing method thereof, a display panel and a display apparatus are disclosed. The array substrate includes: a base substrate (1); a driving circuit structure (2) on the base substrate (1); a planarization layer (3) and a plurality of electrode structures (4) successively located on a side, facing away from the base substrate (1), of the driving circuit structure (2); insulation structures (5) in gap areas between adjacent electrode structures (4); and pixel defining structures (6) on a side, facing away from the base substrate (1), of the insulation structures (5). The thickness of the insulation structures (5) is not smaller than the thickness of the electrode structures (4). An orthographic projection of the pixel defining structures (6) on the base substrate (1) at least completely covers the insulation structures (5).

Abstract: An inflatable U-shaped pillow includes a body and an inflatable device arranged on the body, where the inflatable device includes a draught fan, a connector electrically connected to the draught fan via signal line, and the connector is connected to an external power supply device to drive the draught fan. The inflatable device is configured to a storage chamber; the signal line is placed in the storage chamber, and the signal line is pulled out from the storage chamber; an air outlet of the draught fan is matched with the inflatable hole; the draught fan generates gas, and the gas is transmitted in the inflatable hole from the air outlet of the draught fan.