Abstract: A display apparatus includes a display; a remote controller; a controller. The controller is configured to receive a first command for fitness training, cause the display to present one or more modes including a follow-up mode and an exercising-while-watching mode for selection; in response to selection of the follow-up mode, cause the display to show a first window and a second window disposed on a first user interface for receiving a focus move command from the remote control, with the first window displaying a first video associated with fitness training and the second window displaying a second video associated with image data from a camera; receive a volume adjustment command; in response to the focus being on a volume control for the first or second video, adjust a volume of the first or second video in response to the volume adjustment command. A method for controlling the apparatus is disclosed.

Abstract: The present disclosure relates to the technical field of display, and discloses an array substrate, a preparation method therefor, and a display device. When dielectric layers, such as a buffer layer, an interlayer dielectric layer, and a gate insulation layer, are formed between a source-drain electrode and a substrate, the thickness of at least one dielectric layer among said dielectric layers underneath a first through hole for connecting a drain electrode and an anode is increased, which is to say that the drain electrode is raised to be further away from the substrate, causing the drain electrode to be closer to a surface of a planarization layer that faces away from the substrate, i.e., reducing the thickness of a portion of the planarization layer above the drain electrode.