Abstract: A display panel and a terminal. The display panel includes a liquid crystal array matrix cell, a backlight module, a light guide column, and an electrochromic module. A through hole is formed in the backlight module, and the through hole is used for accommodating the light guide column. The liquid crystal array matrix cell is located on a first side of the backlight module, the electrochromic module is located on a second side of the backlight module, and the first side of the backlight module and the second side of the backlight module are opposite sides.

Abstract: A multimode and power-saving method of multimedia transmission may include, when a multimedia terminal is turned on upon receiving an operational command from a user, acquiring a list of a plurality of available connection protocols in a protocol implementation layer, between an application interface layer and a hardware implementation layer of the multimedia terminal. The method may also include acquiring, from the list of available connection protocols, and saving a current most power-saving connection protocol according to a power-saving priority of each connection protocol, and establishing a connection with another terminal using the current most power-saving connection protocol. When a time that the multimedia terminal has not conducted data transmission with another terminal exceeds a preset time threshold value, the multimedia terminal is disconnected from the other terminal.