Patent Publication Number: US-6216373-B1

Title: Luminescent jigsaw picture

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates generally to a light picture, more particularly, to a luminescent jigsaw picture or pattern serving as a light decorative article on the wall. 
     2. Description of the Prior Art 
     A decorative framed wall-picture depicting a historic or scene spot or a cartoon figure will inevitably fade its freshness out gradually in the long run, no matter how attractive its debut could be. Instead, this invention, engaged in a structural breakthrough by putting together luminescent jigsaw pieces to form a light lining with indispensable electric circuits, is to provide a light picture with diversified configurations for keeping its attractiveness. 
     SUMMARY OF THE INVENTION 
     The primary object of this invention is to arrange a plurality of luminescent jigsaw pieces to form a lining as light sources for lightening a picture or pattern thereon. 
     Another object of this invention is to arrange the plurality of luminescent jigsaw pieces together with commensurate conductive lines to form diversified patterns in different light configurations. 
     Yet another object of this invention is to present diversified colors of the luminescent jigsaw pieces. 
     Furthermore, the luminescent jigsaw pieces can be designed in relatively larger scale English characters or animals for serving as an advertisement signboard. 
     For building abovesaid structure, a plurality of conductive lines aligned in a sequence a positive wire prior to a negative or vice versa is formed in a frame body, and a wiring box and a multistage switch are disposed at a peripheral frame beam for switching operation among different circuits. When assembling, a pattern or a picture formed in a translucent material is firstly mounted in a frame, a plurality of luminescent jigsaw pieces is then laid on back of the picture or pattern at where seen fit. Under the layer of the luminescent jigsaw pieces, a transparent conductive layer, a lightening layer, and another conductive layer are introduced one after another so that lightening the pattern and changing the light position in the pattern are made possible. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     For a better understanding to the present invention, together with further advantages or features thereof, at least one preferred embodiment will be elucidated below with reference to the annexed drawings in which: 
     FIG. 1 is a three-dimensional exploded view of a preferred embodiment of this invention; 
     FIG. 2 is a cutaway sectional view showing a luminescent jigsaw piece in the preferred embodiment of this invention; 
     FIG. 3 is a cutaway sectional view showing a luminescent jigsaw piece in another preferred embodiment of this invention; 
     FIG. 4 is a three-dimensional view of another preferred embodiment of this invention; 
     FIG. 5 is a three-dimensional view of yet another preferred embodiment of this invention; and 
     FIG. 6 is a front view of a furthermore preferred embodiment of this invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     As shown in FIG.  1  through FIG. 4, a printed circuit board (PCB) having a first, a second, and a third conductive circuit  11 ,  12 ,  13  in different potentials is disposed in a frame body  10 . A multistage switch  14  and a wiring box  15  (shown in FIG. 1) are positioned at a peripheral beam of the frame body  10 , wherein the multistage switch  14  can be switched automatically or manipulatively to conductively joint any two conductive circuits among the three. 
     The translucent pattern  20  in the frame body  10  may be painted or printed with a theme like a lovely landscape or animals. In the case of this invention, mountain is taken as the theme including a flock of flying birds  21 , a house  22  at the mountain hill, and the sun  23  climbed up in the midst of the cloud. 
     Two luminescent jigsaw pieces  30 ,  30 ′ are attached each to the house  22  and the sun  23  respectively and correspondingly on the pattern  20  in the frame body  10 . Under the luminescent jigsaw pieces  30 ,  30 ′, a transparent conductive layer  31 , a lightening layer  32 , an insulation layer  33 , and another conductive layer  34  are sequentially attached so that the lightening layer  32  can be lightened due to a bias voltage difference existed between the transparent conductive layer  31  and the other conductive layer  34  (shown in FIG.  3 ). 
     As the flock of birds  21  obviously occupies a relatively larger area with respect to the house  22  and the sun  23 , a corresponding luminescent jigsaw piece  30 ″ in larger scale would be required (shown in FIG.  1 ), which may bestride three even four circuits, hence, for avoiding any possible short circuit caused by other conductive lines laying between two outer conductive lines under a luminescent jigsaw piece  30 ,  30 ′  30 ″, a protective insulation layer  35  is adhered onto the backside of the conductive layer  34  in its middle portion. 
     Further, a conductive glue  40  is applied to the transparent conductive layer  31  and the other conductive layer  34  respectively, and because each luminescent jigsaw piece  30 ,  30 ′,  30 ″ bestrides two of the three circuits, therefore, the multistage switch  14  can be switched to select and lighten one of the luminescent jigsaw pieces  30 ,  30 ′  30 ″. In other words, when the first and the second circuit  11 ,  12  are conductively jointed, the luminescent jigsaw piece  30  corresponding to the house  22  is lightened, and so forth. 
     From the above, it is known that this invention can provide extra pleasure as playing a jigsaw puzzle in addition to its prolonged lifetime by using luminescent jigsaw pieces  30 ,  30 ′,  30 ″ that can also change its lightening position controlled by the multistage switch  14 . Meanwhile, a pseudo movement may be created because of vision errors that might render another kind of pleasure when viewing from other angles. 
     Moreover, more circuits may be added to the frame body  10  for enriching position shift of the luminescent jigsaw pieces  30 ,  30 ′,  30 ″. 
     A larger scale luminescent jigsaw piece  50  may be mounted in the frame body  10  before placing the translucent pattern  20  (shown in FIG. 5) 
     A luminescent jigsaw piece  51  in larger scale may be designed in English characters (shown in FIG. 6) for teaching purpose. 
     The luminescent jigsaw pieces  30 ,  30 ′,  30 ″,  50 , and  51  may be formed in different colors for creating diversified color changes. 
     Although, this invention has been described in terms of preferred embodiments, it is apparent that numerous variations and modifications may be made without departing from the true spirit and scope thereof, as set forth in the following claims.