Abstract: There are provided a display structure, a display method, a display device and an operating system. The display structure includes: a first display buffer configured to store a first user display interface; a second display buffer configured to store a second user display interface; and a display cache, the second user display interface is a user display interface that is obtained by processing the first user display interface and has a resolution conforming to a resolution of the display cache.

Abstract: The present disclosure provides a method and device for verifying security of an application. The method comprises acquiring the application; determining a verification algorithm corresponding to the application according to application information of the application; and verifying the security of the application using the determined verification algorithm. The device comprises an application acquisition circuit configured to acquire the application; an algorithm determination circuit configured to determine a verification algorithm corresponding to the application according to application information of the application; and a security verification circuit configured to verify the security of the application using the determined verification algorithm.

Abstract: A method for upgrading a to-be-upgraded device is disclosed. The method includes receiving upgrade data in a cable digital television signal format which is required for upgrading the to-be-upgraded device at a predetermined frequency point via a cable digital television interface, processing the upgrade data and converting it into a format readable to the to-be-upgraded device, and sending it to the to-be-upgraded device via a short-range wireless network. An apparatus for upgrading a to-be-upgraded device and a computer program product are also disclosed.