| CPC G02F 1/133606 (2013.01) [G02B 27/017 (2013.01)] | 19 Claims |

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1. A light emitting substrate, comprising:
a light source;
a first light modulation layer having a first micro structure on a side closer to the light source; and
a second light modulation layer having a second micro structure on a side away from the light source;
wherein the second light modulation layer comprises a second base substrate and a plurality of second protrusions on the second base substrate; and
the plurality of second protrusions are a plurality of ring protrusions surrounding a central region of the second light modulation layer.
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