Patent ID: 8574662

Claim:
A method of manufacturing a substrate section for a flexible display device, the method comprising: preparing a first substrate configured to have at least one smooth surface; forming a reinforcing layer above the first substrate; forming a second substrate above the reinforcing layer, wherein the second substrate is configured to be flexible; forming a first barrier layer configured to cover a top surface of the second substrate, to surround side surfaces of the second substrate, and to contact the reinforcing layer, wherein the first barrier layer is formed using a first plasma enhanced chemical vapor deposition (PECVD) process; and forming a second barrier layer configured to be more dense than the first barrier layer, wherein the second barrier layer is formed using a second PECVD, and wherein an amount of silane (SiH4) gas used in the first PECVD process is less than an amount of SiH4 gas used in the second PECVD process.