Patent ID: 9735214
Date: 2017-08-15
CPC Classifications: H01L

Claim:
1. An organic light emitting display (OLED) device comprising: a substrate; a thin film transistor formed on the substrate; a planarization layer formed on the thin film transistor; a first bank layer formed on the planarization layer and including a first opening; a lower electrode formed in the first opening and connected to the thin film transistor, an end segment of the lower electrode being disposed on the first bank layer; a second bank layer formed on the first bank layer and covering the end segment of the lower electrode, the second bank layer including a second opening corresponding to the first opening; an organic emitting layer formed on the lower electrode and including a horizontal middle portion in the second opening, and including angled peripheral portions on each side of the horizontal middle portion; and an upper electrode formed on the organic emitting layer, wherein a top surface of the horizontal middle portion of the organic emitting layer is horizontal and flat, and parallel to a top surface of the substrate, and a top surface of each of the angled peripheral portions of the organic emitting layer is in a different plane than a top surface of the horizontal middle portion and is inclined with respect to the top surface the substrate, and wherein a lower surface of the lower electrode in the first opening contacts the planarization layer, and a lower surface of the end segment of the lower electrode contacts the first bank layer.