Microcavity OLED array having DBR for high aperture display and method of fabricating the same

A method for fabricating a microcavity organic light emitting diode (OLED) array comprising:

• depositing a distributed Bragg reflector (DBR) on a substrate;
• depositing at least one first subpixel on the DBR, the at least one first subpixel comprising a first subpixel electrode connected to the substrate through a first via;
• depositing at least one second subpixel on the DBR, the at least one second subpixel comprising a second subpixel electrode connected to the substrate through a second via and a first optical filler layer isolating the first subpixel electrode from the second subpixel electrode, the second subpixel overlapping the first subpixel;
• depositing a pixel definition layer insulating the first subpixel electrode from the second subpixel electrode;
• depositing a white organic light emitting diode (OLED) stack on top of the first subpixel electrode and the second subpixel electrode;
• and
• depositing a top electrode on top of the white OLED stack.

An organic light emitting diode device comprising:

• a substrate;
• a distributed Bragg reflector (DBR) on the substrate;
• at least one first subpixel on the DBR comprising a first subpixel electrode connected to the substrate through a first via;
• at least one second subpixel on the DBR comprising a second subpixel electrode connected to the substrate through a second via and a first optical filler layer isolating the first subpixel electrode from the second subpixel electrode, the second subpixel overlapping the first subpixel;
• at least one third subpixel on the DBR comprising a third subpixel electrode connected to the substrate through a third via and a second optical filler layer isolating the second subpixel electrode from the third subpixel electrode, the third subpixel overlapping the second subpixel;
• a first pixel definition layer insulating at least one of the first subpixel electrode, the second subpixel electrode, and the third subpixel electrode;
• a white organic light emitting diode (OLED) stack on top of the first subpixel, the second subpixel, and the third subpixel;
• and
• a top electrode on top of the white OLED stack.