Patent ID: 8749135

Claim:
A mother substrate structure of light emitting devices, comprising: a mother substrate including a plurality of light emitting units thereon; a cover plate, disposed above the mother substrate and comprising a plurality of unit regions, each of the unit regions corresponding to one of the light emitting units on the mother substrate, wherein the cover plate further comprises a cutting line around each of the unit regions, a plurality of sealant regions between the cutting line and each of the unit regions, and a plurality of spacer disposing regions between the cutting line and each of the sealant region, wherein a distance between the cutting line and each of the spacer disposing regions is 0˜100 μm; a sealant, disposed in the sealant regions so as to bond the mother substrate and the cover plate together; and a spacer structure, disposed in the spacer disposing regions and surrounds each of the light emitting units, wherein a material of the spacer structure and a material of the sealant include a glass frit, and there is an air gap between the substrate and an entirety of a bottom surface of the spacer structure, wherein the air gap between the spacer structure and the mother substrate is smaller than 2μm.