LED patterned substrate with main patterns and secondary patterns and LED chip

The invention discloses an LED patterned substrate with main patterns and secondary patterns. The patterns on the substrate are composed of the main patterns and the secondary patterns, and the main patterns and the secondary patterns are arranged on the surface of the substrate; the size of each secondary pattern is smaller than that of each main pattern; the secondary patterns are distributed in gaps between the main patterns. The invention further discloses an LED chip comprising the LED patterned substrate with the main patterns and the secondary patterns. Compared with a common LED patterned substrate, the LED patterned substrate with the main patterns and the secondary patterns has the advantages that the patterns on the substrate are denser, the LED chip emits more light beneficially, especially, the more light are emitted out of the top of the chip beneficially, the LED light extraction rate is increased greatly, and a new research and application direction is provided for patterned substrate technologies.