LIGHT GUIDE PLATE FOR TRANSPARENT DISPLAY HAVING FINE REFRACTIVE GROOVE THROUGH IMPRINTING METHOD, TRANSPARENT DISPLAY DEVICE INCLUDING SAME, AND METHOD FOR MANUFACTURING SAME

摘要

The present invention relates to a light guide plate for a transparent display having a fine refraction groove through an imprinting method, a transparent display device including the same, and a method for manufacturing the same. The technical object of the present invention is to provide the light guide plate for a transparent display, which improves light efficiency and light uniformity to improve a two-side luminance ratio. Another technical object of the present invention is to provide the light guide plate, capable of solving a sparkling phenomenon, which is a phenomenon partially sparkled in a final panel by controlling roughness of an edge and a surface fine unevenness generated when imprinting a refractive groove as a pattern mold formed by exposure in a conventional invention. To this end, the light guide plate for a transparent display of the present invention comprises a first refractive groove having a shape of a plurality of truncated cones or quadrangular pyramid frustums formed on an upper surface of a resin provided on an upper surface of a transparent substrate. According to another embodiment of the present invention, the light guide plate for a transparent display comprises a second refractive groove having a shape of a plurality of horn type truncated cones or horn type quadrangular pyramid frustums formed on an upper surface of a transparent substrate. According to the present invention, the transparent display which can be improved by 2 to 4 times as compared to an existing light guide plate for a transparent display, and has the improved two-side luminance ratio of 24 : 1 at maximum, can be provided. Also, a sparking problem which is a shape partially sparkled at a final panel of a transparent display is solved, thereby reducing a glare phenomenon of a user.;COPYRIGHT KIPO 2018