Series/parallel OLED light source

An organic light emitting diode (OLED) light source, comprising a plurality of groups of OLEDs, the OLEDs in each group being electrically connected in parallel, and the groups being electrically connected in series, further comprising a fuse connected in series with each OLED for opening the electrical connection to an OLED in response to a short, wherein each of the OLEDs includes a cathode, the cathodes in a group of OLEDs being connected in parallel to a cathode bus, and the fuse being connected between the cathode and the cathode bus.

An organic light emitting diode (OLED) light source, comprising a plurality of groups of OLEDs, the OLEDs in each group being electrically connected in parallel, and the groups being electrically connected in series, wherein the groups of OLEDs comprise two subgroups connected in opposite directions, whereby the light source is responsive to an AC power source to emit light during both half cycles of the AC power.

An organic light emitting diode (OLED) light source, comprising a plurality of groups of OLEDs, the OLEDs in each group being electrically connected in parallel, and the groups being electrically connected in series, further comprising a fuse connected in series with each OLED for opening the electrical connection to an OLED in response to a short, and further comprising means for periodically reverse biasing the OLEDs in a group to assist in blowing the fuse of any OLEDs that have failed short.