Providing display information to a client display device communicating with a plurality of servers is disclosed. Each of the servers provides a pre-assigned partial region of an overall image for display on the client display device. The client display device sends a request to each server via a multicast or broadcast communication channel. The request includes an identification of a plurality of partial regions of an image to be displayed on the client display device. The client display device receives image data from each server that is assigned to generate image data for partial regions identified by the client. Each of such servers asynchronously provides the image data for its pre-assigned partial region by sending the image data over one or more respective data communication channels to the client display device, in accordance with the request sent to each server via the communication channel.