Abstract:
A system and method for controlling or otherwise effectively managing fuel mixing and/or transport in a fuel cell device comprises inter alia a fuel mixing chamber (100), a pure fuel inlet line (110), a bubbling line (120) and a dilute fuel outlet line (130). Disclosed features and specifications may be variously adapted or optionally modified to control or otherwise optimize the rate and/or uniformity of fuel mixing in any fuel cell system. Exemplary embodiments of the present invention may be readily integrated with other existing fuel cell technologies for the improvement of device package form factors, weights and other manufacturing and/or device performance metrics.
Abstract:
A partial discharge method for operating a field emission display (100) having an anode (125), a spacer (106), and a plurality of electron emitters (116) includes the steps of causing electron emitters (116) to emit electrons (130), applying a scanning mode anode voltage to the anode (125), where the scanning mode anode voltage is selected to cause electrons (130) to be attracted toward anode (125), and, thereafter, applying a partial discharge voltage to anode (125). The partial discharge voltage is equal to about a maximum discharge voltage, where the maximum discharge voltage is defined as the maximum voltage that can be applied to anode (125) during the discharge mode of operation while maintaining invisibility of spacer (106).
Abstract:
A field emission display (100) includes a cathode plate (110) having a plurality of electron emitters (114), and anode plate (122) having an anode (124) connected to a potential source (126), and an anode voltage pull-down circuit (127) having an input (106) and an output (104). Output (104) is connected to anode (124), and input (106) is connected to potential source (126). Preferably, anode voltage pull-down circuit (127) causes an anode voltage (120) at anode (124) to drop to about ground potential prior to generation of a discharge current by electron emitters (114) for neutralizing positively electrostatically charged surfaces (137, 138) within field emission display (100).
Abstract:
A field emission device (100) includes an anode (190); a substrate (110); a plurality of spaced apart cathodes (120); a dielectric layer (124) disposed on the cathodes (120); a plurality of spacer pads (130) disposed on the substrate (110) between adjacent cathodes (120) and including a spacer contact layer (142) that defines the surfaces of the spacer pads (130); a spacer (150) having a first edge (157), a second edge (155) and a conductive layer (152), disposed on the second edge (155), the first edge (157) contacting the anode (190), the conductive layer (152) contacting the spacer contact layer (142) at the spacer pads (130); and an electron emitter disposed within the dielectric layer (124) and spaced apart from the second edge (155) of the spacer (150).