LIGHT GUIDE PLATE AND LIGHT GUIDE PLATE ASSEMBLY,申请号JP20130263661-传众专利搜索

LIGHT GUIDE PLATE AND LIGHT GUIDE PLATE ASSEMBLY

申请公布号：JP2015118899(A)

申请号：JP20130263661

申请日期：2013.12.20

申请公布日期：2015.06.25

申请人：

MURASE SHINZO

发明人：MURASE SHINZO;WASHIMI IPPEI

分类号：F21S2/00;G09F13/18

主分类号：F21S2/00

摘要：PROBLEM TO BE SOLVED: To provide a light guide plate which can reflect light onto an emission surface side without using a reflective plate.SOLUTION: For a light guide plate 1, a light guide plate base material 2 made of a colorless transparent acrylic board is used, and all over one surface 2a in a thickness direction of the light guide plate base material 2, a dot pattern 3 is printed. The dot pattern 3 is composed of a plurality of dots 30 whose planar view shapes are circular. The respective dots 30 are formed by layering a light-diffusing layer 31, a reflective layer 32, and an opaque layer 33 in order. In the respective dots 30, the opaque layer 33 is formed larger in area than the light-diffusing layer 31 and the reflective layer 32, and the light-diffusing layer 31 and the reflective layer 32 do not stick out from the opaque layer 33. When light of the light source is made incident in the light guide plate base material 2 from an incident surface, the light repeats reflection in the light guide plate base material 2, scatters inside the light guide plate base material 2, is reflected by the reflective layer 32 after it is guided from the light guide plate base material 2 to the light-diffusing layer 31 at a part of the light-diffusing layer 31, and light is emitted from all over an emission surface 2b.