Abstract: A structure for double-sided light box, comprising a frame having a plurality of wiring ducts disposed on its inner surface for placing electric wires, said frame having two trenches correspondingly disposed on an outer rim of said frame, an upper and a lower lid pivotally connected to said trench with a plurality of spring blades disposed among said upper and said lower lid and said frame to fixedly hold said upper and said lower lid to said frame by means of a elastic force of the spring blades; a recess being disposed at a inner rim for holding surrounding edges of a lighting component and a double-sided backlight module; said backlight module having its upper and lower surface attached to one advertising panel respectively, with said upper and said lower lid clasping fixedly advertising panels and said backlight module; when said lighting component generating a first light source, said first light source projecting light on said backlight module to let said upper and lower surface of said backlight module

Abstract: A advertising light-box network system with auto-detection and auto-monitor primarily is a system that installs a detection device in each advertising light-box of each area to detect whether a lamp body, a power supply device, or a control circuit board in the advertising light-box is abnormal, and send messages detected to a message receiving server of the area thereof for displaying, such that a maintenance worker of the area can get the real-time status of each advertising light-box in the area; and messages received by the message receiving server are sent by the message receiving server to a remote monitor server via internet to be converged and displayed on a remote display, thus a remote supervisor can get the status of all advertising light-boxes in all areas to achieve the object of real-time maintenance; also, the remote monitor server can send messages to a cellular phone, a PDA, or a notebook of a supervisor via a communication network so that the supervisor can 24-hour monitor the advertising li

Abstract: A handy encasement for sign or advertisement board is essentially sustained with a couple of transverse skeletons and a couple of longitudinal skeletons. The transverse or longitudinal skeletons are equipped with a base and an upper lid combined together so as to encircle an accommodation space. A spring bow is intercalated between the base and the upper lid of the transverse skeletons such that the upper lid can keep a proper open angle with the base by its one side remains articulated with the base thereby facilitating replacement of inner components of the encasement. Jointing four mating portions between the bases and the upper lids with four corner junctions and patch members configurates a handy encasement without the need of any tools. A rectangular slot formed along inner edges of the encasement makes it possible to glaze a surface board on each surface for signs or advertisements.