Light guide fabricating apparatus and method of manufacturing the same

Abstract

An apparatus for manufacturing a light guide in a liquid crystal display and a manufacturing method thereof with a simplified mold structure. In the apparatus, an core material portion is fixed to a light guide molding stamper to constitute a molding device along with the stamper. A fixing member fixes the stamper to the core material portion. The molding device constitutes a mold for molding the light guide, along with a stationary core and a movable core. Accordingly, the stamper and the molding core are integrally formed and sealed, so that a mold structure can be simplified and stable manufacturing of the light guide can be provided.

What is claimed is:  
     
         1 . The portion of a mold apparatus for manufacturing a light guide, comprising: 
 a stamper configured to define a surface of a light guide; and    a core material portion fixed to said stamper by a fixing structure, wherein said fixing structure comprises at least one fastening member.    
     
     
         2 . The portion of a mold apparatus according to  claim 1 , wherein said at least one fastening member extends through said core material portion into said stamper.  
     
     
         3 . The portion of a mold apparatus according to  claim 1 , wherein said at least one fastening member is at least one bolt.  
     
     
         4 . The portion of a mold apparatus according to  claim 2 , wherein said stamper is between 6 and 12 mm thick.  
     
     
         5 . A method of manufacturing a light guide, comprising: 
 defining a molding chamber, including defining at least one surface of the molding chamber with a stamper configured to define a surface of a light guide, wherein the stamper is fixedly mounted on a core material portion using at least one fastening member; and    molding a molding material in the molding chamber to form a light guide having a surface thereof defined by the stamper.    
     
     
         6 . The method according to  claim 5 , comprising forming at least one fastener hole through the core material portion and extending into the stamper electrotype.  
     
     
         7 . The method according to  claim 5 , wherein the at least one fastening member is a bolt.  
     
     
         8 . The method according to  claim 7 , wherein the stamper electrotype is between 6 and 12 mm thick.