Light waveguide component and method for forming the same

A method for forming a light waveguide component, comprising:

• providing a substrate;
• forming a first light transmitting layer on the substrate;
• molding the first light transmitting layer to form a plurality of first trenches on a first surface of the first light transmitting layer, and each of the first trenches extends along with a long axis;
• forming a first light transmitting material on the first surface of the first light transmitting layer after the first trenches are formed, wherein the first light transmitting material covers the first trenches;
• patterning the first light transmitting material to form a plurality of first light transmitting pillars, wherein the first light transmitting pillars are located at the first trenches respectively, and each of the first light transmitting pillars extends along with the long axis;
• and
• forming a second light transmitting layer on the first surface of the first light transmitting layer after the first light transmitting pillars are formed, wherein the second light transmitting layer covers the first light transmitting pillars, and the first light transmitting pillars are located between the first light transmitting layer and the second light transmitting layer, wherein a refractive index of the first light transmitting layer is identical to a refractive index of the second light transmitting layer, and a refractive index of each of the first light transmitting pillars is larger than the refractive index of the first light transmitting layer.