A telepresence server is for connection to a telecommunications network for providing access to a reality engine for a plurality of passive users. The reality engine can be controlled by an active user or a professional director through the network or by a local professional director. Active/passive mode displays can be used by the passive users in a passive mode and an active/passive mode display can be used by the active user in an active mode.

 
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< Cooling fan and image display apparatus

> Image display method and device, and projector

> Liquid crystal display device with improved response speed

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