The embossed surface 42 of the thermoplastic resin molding 40 is constituted of rough unevenness 44 on the side of a substrate and fine unevenness 46 in an acute angle shape on the side of the upper layer, and the low glossiness or the light diffusiveness is obtained by setting the three dimensional surface roughness parameter of the embossed surface 42 in a prescribed range. 熱可塑性樹脂成形品40のシボ表面42は、下地側の粗い凹凸44と上層側の鋭角形状の細かい凹凸46からなり、該シボ表面42の3次元表面粗さパラメータを所定範囲内に設定することで、低光沢性あるいは光拡散性が得られる。 - 特許庁