Light emitting display panel and light emitting display apparatus including the same

A light emitting display panel comprising:

• a substrate;
• an auxiliary cathode electrode disposed at the substrate;
• a buffer covering the auxiliary cathode electrode;
• a pixel driving circuit layer disposed at the buffer and including a driving transistor;
• an insulation layer covering the pixel driving circuit layer;
• a planarization layer covering the insulation layer and planarizing an upper end of the insulation layer;
• an anode disposed at the planarization layer and connected to the driving transistor;
• a bank surrounding an outer portion of the anode;
• a light emitting layer disposed on the anode;
• and
• a cathode disposed on the light emitting layer,
• wherein the cathode is connected to the auxiliary cathode electrode through a connection electrode exposed at an undercut region passing through the bank, the planarization layer, the insulation layer, and the buffer.

A light emitting display apparatus comprising:

• a substrate;
• an auxiliary cathode electrode disposed at the substrate;
• a passivation layer covering the auxiliary cathode electrode;
• an anode disposed on the passivation layer;
• a bank surrounding an outer portion of the anode;
• a light emitting layer disposed on the anode;
• a cathode disposed on the light emitting layer,
• a data driver supplying data voltages to a plurality of data lines included in the light emitting display panel;
• a gate driver supplying gate voltages to a plurality of gate lines included in the light emitting display panel;
• and
• a controller controlling the data driver and the gate driver,
• wherein the cathode is connected to the auxiliary cathode electrode through a connection electrode exposed at an undercut region passing through the bank and the passivation layer.