Abstract:
An expandable LED module for arbitrary display assembly, comprises: a print circuit board, used to carry the following devices; at least a light emitting diode, disposed on said print circuit board; a first connecting device, disposed on one side of said print circuit board and coupled to said light emitting diode; and a second connecting device, disposed on the other side of said print circuit board, coupled to said light emitting diode, and capable of interconnecting with said first connecting device, wherein said first connecting device and second connecting device can be utilized to expand said LED modules to accomplish any assembly indicating figures, words, numbers, or symbols.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to an expandable LED module for arbitrary display assembly, and more particularly relates to an expandable LED module, which can be connected to one another through connectors to accomplish any assembly indicating figures, words, numbers, or symbols. 
   2. Description of the Related Art 
   At present, the common light emitting diode (LED) bars have a plurality of LED&#39;s, and a layer of glue on the bottom for sticking on the buildings to provide decoration or illumination in the nights. Through the control of an external controller, the assembled LED&#39;s can display varying lighting patterns. 
   However, said LED bars, being in bar shape, the assembly of which is limited to shapes like square, circle, diamond, triangle, etc. Besides, said bar-shaped LED&#39;s are usually packaged in serial lines when delivered from the factories, so the users have to cut them according to the length needed, and then assembly them to the wanted shape; once the length is decided and cut, then it is not changeable, especially not expandable, so, when the cut length is not sufficient, it may become unavailable and cause a waste. These are the cons of the known art. 
   SUMMARY OF THE INVENTION 
   In view of the description above, an objective of the present invention is to overcome the shortcomings of the bar-shaped LED&#39;s and provide a novel expandable LED module for arbitrary display assembly. 
   The present novel expandable LED module for arbitrary display assembly can be connected to one another through connectors to accomplish any assembly indicating figures, words, numbers, or symbols. 
   An expandable LED module for arbitrary display assembly, includes: a print circuit board, used to carry the following devices; at least a light emitting diode, disposed on said print circuit board; a first connecting device, disposed on one side of said print circuit board and coupled to said light emitting diode; and a second connecting device, disposed on the other side of said print circuit board, coupled to said light emitting diode, and capable of interconnecting with said first connecting device, wherein said first connecting device and second connecting device can be utilized to expand said LED modules to accomplish any assembly indicating figures, words, numbers, or symbols. 
   To make it easier for our examiner to understand the objective of the invention, its structure, innovative features, and performance, we use a preferred embodiment together with the attached drawings for the detailed description of the invention. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIGS. 1(   a ) and  1 ( b ) are exploded views of a preferred embodiment of the present invention; 
       FIG. 2  is an assembly schematic illustration of a preferred embodiment of the present invention; 
       FIGS. 3(   a ) and  3 ( b ) are exploded views of another preferred embodiment of the present invention; 
       FIG. 4  is an assembly schematic illustration of another preferred embodiment of the present invention; 
       FIG. 5  is a schematic illustration of several shapes that the present invention is assembled in; 
       FIG. 6(   a )- 6 ( j ) are schematic illustration that the present invention can be expanded to become arbitrary assembly indicating figures, words, numbers, or symbols; 
       FIG. 7  is a schematic illustration that the present invention can further connect to an external control box. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   The present invention will now be described in more detail hereinafter with reference to the accompanying drawings that show various embodiments of the invention. 
     FIG. 1  ( a ) shows an exploded view of the present novel expandable LED module;  FIG. 1  ( b ) illustrates the print circuit board, first connecting device, and second connecting device of the present invention;  FIG. 2  shows the schematic drawing of the present novel expandable LED module. 
   As indicated in the drawings, the present novel expandable LED module includes: a housing  10 ; a print circuit board  20 ; at least a light emitting diode  30 ; a first connecting device  40 ; and a second connecting device  50 . 
   Wherein, said housing  10 , made of insulating material, which can be but not limited to plastics, has a room  11  open in both sides to provide the space for said print circuit board  20 , and a through hole  12  for said light emitting diode  30  to be exposed. 
   Said print circuit board  20 , disposed in said room  11 , used to carry said light emitting diode  30 , a first connecting device  40 , and a second connecting device  50 , has at least a positive polarity pad  21 , a negative polarity pad  22 , and circuit traces (not shown in the drawing) for coupling to said light emitting diode  30 , and the shape of said print circuit board  20  can be but not limited to bar type,             type, type, or           type, etc.
   Said light emitting diode  30  is disposed on said print circuit board  20  and exposed from said through hole  12 . Besides, the number of said light emitting diode  30  and though hole  12  can be changed for different needs, and said light emitting diode  30  can be but not limited to a mono color or full colors LED. When said light emitting diode  30  is a common cathode full colors LED, it will need three positive polarity pads  21  for the red, green, and blue respectively, a negative polarity pad  22 , and circuit traces (not shown in the drawing). In this embodiment, a mono color LED is taken as an example, and should not be limited thereto. 
   Said first connecting device  40  having a positive polarity contact  41  and a negative polarity contact  42 , which can be but not limited to the golden finger, is disposed on, for example but not limited to, the right side of said print circuit board  20 , and is coupled to said light emitting diode  30 , wherein said positive polarity contact  41  and negative polarity contact  42  are coupled through said positive polarity pad  21  and negative polarity pad  22  respectively to said light emitting diode  30 , and the number of the contacts is equal to that of the pads in both polarity. 
   Said second connecting device  50  having a slot  51  and a positive polarity contact  52  and a negative polarity contact  53  therein, is disposed on, for example but not limited to, the left side of said print circuit board  20 , wherein said positive polarity contact  52  and negative polarity contact  53  are extended to the outside of said second connecting device  50  and coupled through said positive polarity pad  21  and negative polarity pad  22  respectively to said light emitting diode  30 , and the number of the contacts is equal to that of the pads in both polarity. 
   When it comes to assembly, the first step is to stick said light emitting diode  30  and said second connecting device  50  to said print circuit board  20 , and then put said print circuit board  20  into said housing  10  to finish the assembly of the present novel expandable LED module. 
   Refer to  FIGS. 3 and 4 , wherein  FIG. 3(   a ) shows the exploded view of another embodiment of present invention;  FIG. 3(   b ) shows the illustrating view of the rear sides of a print circuit board, a first connecting device, and a second connecting device of another embodiment of present invention;  FIG. 4  is an assembly illustrating view. 
   As indicated in the drawings, said first connecting device  40  of the present novel expandable LED module can be a pin header, and said second connecting device  50  has a slot  51  and a positive polarity contact  52  and a negative polarity contact  53  therein, wherein said positive polarity contact  52  and negative polarity contact  53  can be pins and are extended to the outside of said second connecting device  50  and coupled through said positive polarity pad  21  and negative polarity pad  22  respectively to said light emitting diode  30 . 
   When it comes to assembly, the first step is to stick said light emitting diode  30  and said second connecting device  50  to said print circuit board  20 , and then put said print circuit board  20  into said housing  10  to finish the assembly of the present novel expandable LED module. 
   Refer to  FIGS. 5 and 6(   a )˜ 6 ( i ), wherein  FIG. 5  indicates that the shape of the present novel expandable LED module can be bar type, L type,             type, or           type;  FIG. 6(   a )˜ 6 ( i ) indicates respectively that the present novel expandable LED module can be expanded to assemble any figures, words, numbers, or symbols.
   As indicated in the drawing of  FIG. 5 , the shape of the housing  10  and print circuit board  20  of the present novel expandable LED module can be bar type, L type,             type, or           type, wherein said first connecting device  40  and second connecting device  50  can be located in said housing  10 , but not limited thereto, in the following manners: said first connecting device  40  is hiding in said housing  10 , and said second connecting device  50  is exposed outside said housing  10 ; said first connecting device  40  is hiding in said housing  10 , and said second connecting device  50  is hiding in said housing  10 ; said first connecting device  40  is exposed outside said housing  10 , and said second connecting device  50  is exposed outside said housing  10 .
   Through said first connecting device  40  and second connecting device  50  which are hiding in or exposed outside said housing  10 , the present novel expandable LED module can be expanded to become any assembly indicating figures, words, numbers, or symbols, for example, like the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 shown in  FIG. 6(   a )˜ 6 ( i ). Therefore, the present invention has overcome the shortcomings of the known ones. 
   Refer to  FIG. 7  indicating an illustration that the present novel expandable LED module can further connect to an external control box. As shown in the drawing, the present novel expandable LED module can further connect to an external control box  70  having at least a controller  71  and a connector  72 , wherein through the connection of said connector  72  with said first connecting device  40  or second connecting device  50 , said controller  71  can control the colors and lighting time of said light emitting diode  30 . 
   So, through the implementation of the present invention, any display assembly indicating figures, words, numbers, or symbols can be achieved. 
   While the invention has been described by way of example and in terms of a preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures. 
   In summation of the above description, the present invention herein enhances the performance than the conventional structure and further complies with the patent application requirements and is submitted to the Patent and Trademark Office for review and granting of the commensurate patent rights.