Abstract: An improved AM OLED pixel circuit and method of wide dynamic range dimming for AM OLED displays are disclosed that maintain color balance throughout the dimming range, and also maintain the uniformity of the luminance and chromaticity of the display at low gray-levels as the display is dimmed to lower luminance values. As such, AM OLED displays can meet the stringent color/dimming specifications required for existing and future avionics, cockpit, and hand-held military device display applications. Essentially, the OLED pixel circuit and method of dimming that are disclosed use Pulse Width Modulation (PWM) of the OLED pixel current to achieve the desired display luminance. Two example circuits are disclosed that externally PW modulate the common cathode voltage or common power supply voltage to modulate the OLED current in order to achieve the desired display luminance.

Abstract: A flexible conductor formed on a flexible substrate. In one embodiment, a semiconductor device is disclosed. The semiconductor device comprises a periodic structure of islands and at least one conductor. The at least one conductor comprises a series of repeating geometric features affixed to the periodic structure of islands. The geometric features of the conductor are adapted to stretch the conductor rather than break the conductor when the substrate is bent.