High resolution advanced oled sub-pixel circuit and patterning method

Abstract

Embodiments described herein generally relate to a display. In one or more embodiments, a sub-pixel circuit includes at least two anodes disposed over a substrate. Adjacent anodes define a well. Adjacent overhang structures are disposed in the well. The overhang structures have an overhang thickness from the substrate to an upper surface of the overhang structures. The overhang thickness and the anode thickness are substantially equivalent. The overhang structures include overhang extensions extending past lower sidewalls. The well has a trench area defined by the lower sidewalls and a bottom surface of the overhang extensions, with a gap between the overhang extensions of the adjacent overhang structures. An organic light emitting diode (OLED) material is disposed over the anode, the upper surface of the overhang structures, under the overhang structures, and within the trench area. A cathode is disposed over the OLED material.