Patent ID: 11968877
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 18:
19. A transparent display device comprising:
a substrate having a plurality of transmissive areas and a non-transmissive area;
a plurality of light emission areas that at least partially overlap the non-transmissive area;
a plurality of light emitting elements respectively disposed in the plurality of light emission areas on the substrate, each of the plurality of light emitting elements including an anode electrode, a light emitting layer, and a cathode electrode;
a plurality of touch sensors respectively disposed in the plurality of transmissive areas on the substrate, each of the plurality of touch sensors including a touch sensor electrode; and
a first undercut structure disposed along an edge of the transmissive area and separating the cathode electrode from the touch sensor electrode, the first undercut structure including at least one eave;
wherein the first undercut structure includes:
a first passivation layer disposed on the substrate;
a first opening area in the first passivation layer, the first opening located along the edge of the transmissive area;
a second passivation layer disposed on the first passivation layer;
a second opening area in the second passivation layer, the second opening located to at least partially overlap the first opening area;
a planarization layer disposed on the second passivation layer;
a third opening area in the planarization layer, the third located to at least partially overlap the first and second opening areas; and
a first eave in which the planarization layer is more protruded than the second passivation layer in a direction of the transmissive area to overlap at least a portion of the second opening area.