Patent ID: 8801425
Filing Date: 2014-08-12
Classification: B29C,B29D,G02B

Abstract:
1. A mold for fabricating light guiding plate, comprising: an upper mold defining one or more first cooling channel therein; a lower mold defining a cavity thereon; and a die core assembly mounted to the upper mold, wherein the die core assembly comprises a base plate connected to the upper mold and a core plate detachably located at a side of the base plate facing the lower mold, and at least one gasket, the base plate is made of medium steel and defines one or more second cooling channel therein, and the second cooling channel communicates with the first cooling channel respectively to cool the mold, the core plate is made of corrosion-resisting die steel, and defines an engraving surface facing the lower mold and a plurality of microstructures on the engraving surface thereof, the at least one gasket is located between the base plate and the core plate to compensate for a decreasing thickness of the core plate due to a modification or replacement of the microstructures.