선행 연구에 의하면 Al-Ti 계 산화물 박막의 투과율은 표면이 불균일한 경우에 불투명한 박막 수준으로 크게 저하되었다.
According to previous studies, the transmittance of the Al-Ti-based oxide thin film was significantly reduced to the level of an opaque thin film when the surface was uneven.