Patent ID: 11860341
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC B  G

Claim 14:
15. A cover window comprising:
a glass substrate;
a first coating layer disposed on a first surface of the glass substrate;
a second coating layer disposed on the first coating layer,
a third coating layer disposed in contact with the second coating layer, and
a fourth coating layer disposed in contact with the third coating layer,
wherein a thickness of the glass substrate is equal to or less than 30 micrometers,
a thickness of each of the first coating layer and the second coating layer ranges from 50 angstroms to 400 angstroms,
wherein the first to fourth coating layers respectively include materials different from one another, and
each of the first to fourth coating layers includes at least one of a polyimine oligomer having an average molecular weight ranging from 300 grams per mole to 5000 grams per mole, an epoxy oligomer having an average molecular weight ranging from 300 grams per mole to 5000 grams per mole, an epoxy silane, an amino silane, a sodium silicate, and a polyvinyl alcohol.