MOLDING APPARATUS FOR MANUFACTURING THE LIGHT GUIDE PANEL OF BACK LIGHT UNIT, METHODE FOR MANUFACTURING THE LIGHT GUIDE PANEL OF BACK LIGHT UNIT AND LIGHT GUIDE PANEL OF BACK LIGHT UNIT MANUFACTURED BY THE METHODE

摘要

The present invention provides a mold for the production of light guide plate for a backlight unit, a backlight unit and a method of manufacturing a light guide plate for thereby relates to a light guide plate for a back light unit manufactured. ; is the mold for manufacturing the backlight unit for a light guide plate according to the present invention, the exit surface for emitting light, and a bottom surface which is located on the other side of the exit surface, one end portion in the longitudinal direction of the exit surface and a light incidence surface and the light irradiation of light received from the light source of the backlight unit by one end located between the portion of the longitudinal direction of the bottom surface, the light from the light incidence surface of the received light is scattered to be emitted towards the output surface, the length of the bottom surface in a direction to be spaced apart from each other and arranged according to each of which is formed long in the negative direction along the width of the bottom surface for the production of the cross-sectional shape is a triangular prism light guide plate for a backlight unit having a pattern consisting of a plurality of grooves , ;, and having a first mold and a second mold having a second surface for forming a bottom surface of the light guide plate having a first surface for forming the exit surface of the light guide plate, the light guide plate such that the prism pattern is formed, along the longitudinal direction of the second surface and are spaced apart from each other side by side arranged, each of which is to have a plurality of projections of the cross-sectional shape, a triangle formed long in relief along the width direction of the second surface characterized. ; In addition, the production method of the light guide plate for a backlight unit according to the present invention is first that the first stage and the first mold and the second mold to provide a mold, such as the cross-coupled, is characterized in consisting of by a third step of injection molding a light guide plate for a backlight unit by press-fitting the second step and the molten resin in the cavity between the combined first mold and the second mold. ; Further, the light guide plate for a backlight unit according to the invention is characterized in that the light guide plate manufactured by the manufacturing method for the back light unit.