Patent ID: 11956999
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 23:
24. An organic light emitting display device comprising:
a substrate including an opening region, a peripheral region surrounding the opening region, and a display region surrounding the peripheral region, the substrate comprising a groove in the peripheral region and an opening in the opening region, the groove being formed inside the substrate in a depth direction of the substrate;
a light emitting structure in the display region on the substrate;
a thin film encapsulation structure on the light emitting structure;
an undercut structure inside the groove in the substrate, the undercut structure comprising:
a sacrificial metal pattern having a first width; and
at least one insulating layer pattern having a second width greater than the first width; and

a functional module in the opening of the substrate,
wherein the light emitting structure comprises:
a lower electrode;
a light emitting layer on the lower electrode; and
an upper electrode on the light emitting layer,

wherein the thin film encapsulation structure comprises:
a first thin film encapsulation layer on the upper electrode, the first thin film encapsulation layer comprising a flexible inorganic material;
a second thin film encapsulation layer on the first thin film encapsulation layer, the second thin film encapsulation layer comprising a flexible organic material; and
a third thin film encapsulation layer on the second thin film encapsulation layer, the third thin film encapsulation layer comprising the flexible inorganic material, and

wherein the functional module is in contact with a side surface of the substrate, a side surface of the light emitting layer, a side surface of the upper electrode, a side surface of the first thin film encapsulation layer, and a side surface of the third thin film encapsulation layer at a boundary between the peripheral region and the opening region.