Patent ID: 9618787
Date: 2017-04-11
CPC Classifications: G02B,G02F

Claim:
1. A lens array substrate comprising: a substrate which has a concave portion provided in a first face thereof; and a lens layer, having a substantially flat surface, which is provided so as to cover the first face and fill the concave portion, wherein the lens layer includes a first layer, a second layer, and a third layer which are sequentially laminated from a substrate side by reflecting a shape of the concave portion therein, a refractive index of the first layer is larger than a refractive index of the second layer, a refractive index of the third layer is smaller than the refractive index of the second layer, and the refractive index of the third layer is larger than a refractive index of the substrate, and the third layer, the second layer, and the first layer are sequentially exposed to the surface of the lens layer in this order toward an end from a central portion of the concave portion when seen in a plan view.