Display device and application program upgrading method

The invention discloses a display device and an application program upgrading method, and the method comprises the steps: sending an upgrading detection request to a server based on a package name and a version number in identification information of an initial application program, and receiving a message replied by the server; if the message represents that a target application with the version number higher than that of the initial application exists, an installation package of the target application with the package name different from that of the initial application is received from the server, the target application is installed, and the initial application can be normally used in the installation process of the target application; and after the display equipment is restarted, replacing the initial application program with the target application program. In this way, by obtaining and installing the target application program which is higher than the initial application program in version, different from