Abstract: The present invention provides an organic light emitting device including: a substrate; and two or more stacked light emitting elements, which comprise a first electrode, at least one intermediate electrode, a second electrode, and an organic material layer disposed between the electrodes, the stacked organic light emitting elements including a first group of electrodes electrically connected to each other such that among the electrodes, at least two electrodes, which are not adjacent to each other, become a common electric potential, and a second group of electrodes which include one electrode among electrodes which are not electrically connected to the first group of electrodes, or at least two electrodes which are not electrically connected to the first group of electrodes and are electrically connected to each other so as to be a common electric potential without being adjacent to each other, in which the stacked organic light emitting elements are disposed at an interval apart from each other on the subs

Abstract: A transient voltage suppressor circuit is disclosed for a plurality (N) of LEDs connected in series. Only one zener diode is created for connection to each node between LEDs, and a pair of zener diodes (the “end” zener diodes) are connected to the two pins (anode and cathode pads) of the series string. Therefore, only N+1 zener diodes are used. The end zener diodes (Q1 and Qn+1) effectively create back-to-back zener diodes across the two pins since the zener diodes share a common p+ substrate. The n+ regions of the end zener diodes Q1 and Qn+1 have the highest breakdown voltage requirement and must be placed relatively far apart. Adjacent n+ regions of the intermediate zener diodes have a much lower breakdown voltage requirement so may be located close together. The zener diodes may be placed within a very small footprint or can be larger for better suppressor performance.

Abstract: An area illumination apparatus, including a multiplicity of spaced-apart OLED devices electrically connected in series including a common substrate and each OLED device formed simultaneously over the common substrate; and a power source connected to the first and last OLED devices of the series of spaced-apart OLED devices. The series of OLED devices formed simultaneously on a common substrate can be manufactured in situ. Moreover, by serially connecting the OLED devices the application of power to the devices is simplified. A socket can be used to readily adapt the area illumination apparatus for use with the existing lighting infrastructure.

Abstract: An embodiment of the present invention pertains to a multiple discharge load electronic ballast system, including a distribution bus and a plurality of electronic ballasts. The distribution bus has a nominal distribution power rating. The plurality of electronic ballasts are operatively coupled to the distribution bus. A respective electronic ballast comprises adaptations for DC voltage control and an alternating current (AC) output, and has a maximum ballast power rating. A sum of the maximum ballast power ratings of the plurality of electronic ballasts is greater than the nominal distribution power rating of the distribution bus.

Abstract: A fluorescent lamp (10) includes a tube (12) and a fluorescent gas mixture sealed in the tube. A phosphor layer (20) is deposited on the interior surface of the tube. A pair of internal electrodes (14), connected by a first circuit (16) to a first power supply (18), are located in the tube at opposite ends thereof. The first power supply (18) causes a high-intensity arc discharge between the pair of internal electrodes (14) and, in turn, produces fluorescent light. An opposing pair of conductive traces (22, 24) connected by a second circuit (26) to a second power supply (28), are silk-screened onto the exterior surface of the lamp tube (12) along the length thereof. The second power supply (28) causes the opposing pair of conductive traces (22, 24) to produce a transverse electric field that creates a low-intensity transverse discharge. The low-intensity transverse discharge is used to lower the luminance range of the fluorescent lamp.