Abstract: An array substrate includes a base substrate having a display region and a non-display region, the display region includes a corner display region and a middle display region; the display region includes a plurality of pixel circuits arranged in an array and a plurality of data signal lines, and a column of pixel circuits are electrically connected to at least two data signal lines; and further includes a plurality of first fan-out wires, where a first terminal of a first fan-out wire of the plurality of first fan-out wires is electrically connected to a data signal line located in the corner display region; the non-display region includes a fan-out region, and the fan-out region includes a plurality of second fan-out wires; a terminal of a second fan-out wire of part of the plurality of second fan-out wires is electrically connected to the second terminal of the first fan-out wire.

Abstract: An MVVM architecture-based application development method and a terminal are disclosed, relate to the terminal field, The method includes: The developer customizes data objects of some background data, and declares, in an interface description file, a binding relationship between some controls in a UI and the data objects of the background data. The interface description file may use any interface description language. Then, in a process of parsing the interface description file designed by the developer, the declared binding relationship is automatically identified. The binding relationship is registered. Corresponding listening is set, to establish a bidirectional binding channel.

Abstract: Display panel and display device are described. In an embodiment, the display panel includes data lines located in a display area; and fan-out lines connected to the data lines and located in a non-display area. In an embodiment, the display area includes first display areas and a second display area. In an embodiment, one of the first display areas, the second display area and another one of the first display areas are arranged along a first direction. In an embodiment, the data lines include edge data lines located in the first display areas and connected to the fan-out lines through connection leads located in the display area.