Patent ID: 11864411
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A display apparatus comprising:
a first substrate formed of transparent polyimide, the first substrate comprising a main display area, a component area comprising a transmission area and at least partially surrounded by the main display area, and a peripheral area located outside the main display area;
a barrier layer having a density ranging from about 2 g/cm3 to about 6 g/cm3 directly formed on the first substrate;
a buffer layer formed on the barrier layer;
a main pixel circuit comprising a first semiconductor layer formed on the buffer layer to correspond to the main display area;
an auxiliary pixel circuit comprising a second semiconductor layer formed on the buffer layer to correspond to the component area;
a second substrate located under the first substrate and the second substrate comprising transparent polyimide;
a first inorganic layer located between the first substrate and the second substrate; and
a second inorganic layer directly located on the first inorganic layer,
wherein the barrier layer has a thickness ranging from about 200 Å to about 600 Å from a top surface of the first substrate, and comprises one material from among a nitrogen rich silicon nitride (SiNx) having low or no hydrogen content with x being greater than 4/3, a silicon nitride (Si3N4) having low or no hydrogen content, and zirconium oxide (Zr2O3).