Structure of light-emitting device and preparation method therefor

Abstract

Disclosed are a light-emitting device structure and a preparation method therefor. The light-emitting device structure includes a buffer layer, where a material of the buffer layer is a transparent material; and a light-emitting structure disposed on a side of the buffer layer, where the light-emitting structure includes at least one light-emitting unit; where the buffer layer includes at least one microlens structure, the microlens structure includes at least two sub-layers, and each the light-emitting unit corresponds to at least one microlens structure. In the present disclosure, the buffer layer of the transparent material is utilized to manufacture the the microlens structure. On the one hand, a problem of total reflection is alleviated and light extraction efficiency of the light-emitting device is improved. On the other hand, no additional microlens structures is required, thereby reducing production cost.

Dependencies are inferred from the claim text.