Apparatus and method of fabricating light guide panel

Abstract

An apparatus and method for fabricating the light guide panel reduces the thickness of the stamper and fixes it firmly in place. The apparatus and method for fabricating the light guide panel according to the present invention has a stamper for forming patterns on the light guide panel and first and second side mold frames which are separable so as to hold the stamper in place during the formation of the light guide and so as to easily eject the finished light guide after it has formed and hardened.

1 - 9 . (canceled)  
     
     
         10 . An apparatus for fabricating a light guide panel, comprising: 
 a stamper forming patterns of the light guide panel;    a first mold frame having air induction holes on the surface that contacts the stamper along the edge of the stamper; and    an air induction pipe connected with the air induction holes fixing the stamper using vacuum force.    
     
     
         11 . The apparatus for fabricating a light guide panel according to  claim 10 , wherein the stamper has radiating patterns corresponding to the patterns on the exit surface of the light guide panel.  
     
     
         12 . The apparatus for fabricating a light guide panel according to  claim 10 , further comprising: 
 a stamper fixing part fixing one side of the stamper to the first mold frame;    a second mold frame having rear surface patterns corresponding to the patterns on the bottom surface of the light guide panel;    a first fixing part fixing the first mold frame;    a second fixing part fixing the second mold frame; and    an injection pipe leading into the space arranged between the stamper and the second mold frame.    
     
     
         13 . The apparatus for fabricating a light guide panel according to  claim 12 , wherein the injection pipe penetrates the first fixing part and the stamper fixing part.  
     
     
         14 . The apparatus for fabricating a light guide panel according to  claim 12 , wherein the air induction pipe penetrates the first mold frame and the first fixing part, and is connected with the air induction holes.  
     
     
         15 . The apparatus for fabricating a light guide panel according to  claim 12 , wherein the distance between the border of the second mold frame and the border of the air induction hole is between about 0 mm and about 3 mm.  
     
     
         16 . The apparatus for fabricating a light guide panel according to  claim 10 , wherein the stamper has a thickness of about 0.3 to about 1 mm.  
     
     
         17 . A method for fabricating a light guide panel, comprising: 
 forming a first stamper for forming patterns of the light guide panel;    fixing the first stamper to a lower mold frame using separate first and second side mold frames, holding the first stamper therebetween;    assembling the lower mold frame having the first stamper fixed thereto and the upper mold frame having a second stamper fixed thereto; and    forming the light guide panel by injecting material for the light guide panel into a space arranged between the upper and lower mold frames.    
     
     
         18 . The method for fabricating a light guide panel according to  claim 17 , wherein fixing the first stamper to a lower mold frame by using first and second side mold frames comprises inserting a screw into a screw groove penetrating the first side mold frame, the first stamper, and a portion of the second mold frame.  
     
     
         19 . A method for fabricating a light guide panel, comprising: 
 forming a first stamper for determining patterns of the light guide panel;    fixing the first stamper to a lower mold frame using a side mold frame having a bent part;    assembling the lower mold frame having the first stamper fixed thereto and an upper mold frame having a second stamper fixed thereto; and    forming the light guide panel by injecting material for the light guide panel into a space arranged between the upper and lower mold frames.    
     
     
         20 . A method for fabricating a light guide panel, comprising: 
 forming a stamper for determining patterns of the light guide panel;    fixing one side of the stamper to one side of a first mold frame by using a stamper fixing part;    fixing the stamper to the first mold frame using vacuum force via both air induction holes of the first mold frame formed on the surface contacting with the stamper and an air induction pipe connected with the air induction holes;    assembling the first mold frame having the stamper fixed thereto and a second mold frame; and    forming the light guide panel by injecting material for the light guide panel into a space arranged between the first and second mold frames.    
     
     
         21 . The method for fabricating a light guide panel according to  claim 20 , wherein the distance between the border of the second mold frame and the border of the air induction hole is maintained in the range of about 0 to about 3 mm.  
     
     
         22 . The method for fabricating a light guide panel according to  claim 20 , wherein the stamper has a thickness of about 0.3 mm to about 1 mm.