Abstract:
An electroluminescent display contains an array of dynamically addressable pixels. The pixels are arranged on one side of a carrier substrate. Conductive vias in the substrate are electrically connected to each of the pixels. Each pixel consists of a bottom electrode that is coupled to a via, an electroluminescent material, and a dielectric material. A common top electrode is disposed on the dielectric material. A driver circuit conductor or connector is situated on the other side of the substrate and is electrically coupled to each of the conductive vias and to the common top electrode, so that each pixel can be individually addressed to illuminate the electroluminescent material on individual pixels.
Abstract:
An alternating current (AC) powered self organizing wireless node (100, 400, 600) includes a self organizing wireless receiver-transmitter (115), an AC branch connection (105), an AC to direct current (DC) converter (110), a secondary power function (120), and a housing (150). The self organizing wireless receiver-transmitter can communicate information throughout a network of compatible self organizing nodes solely using radio transmission to and reception from nearby self-organizing nodes. The secondary power function can couple power to the AC to DC converter for powering the self organizing wireless receiver-transmitter when AC power is not provided. The AC powered self organizing wireless node is designed and fabricated for agency certification. The AC powered self organizing wireless node may include one or more sensors (125), sensor inputs (135), transducers (130), or control outputs (155).
Abstract:
A portable electronic device (510) includes an electrowetting display (200, 202, 204, 206, 300, 512) having a plurality of transparent layers defining a cavity (219). A combination of a first fluid (218, 236) and a second fluid (210, 234, 244, 254) are positioned in the cavity. First circuitry (224) is coupled to a voltage source (222) for selectively repositioning the second fluid (210, 234, 244, 254) in relation to the first fluid (218, 236). A plurality of quantum dots (208, 360) is positioned within the second fluid (210, 234, 244, 254), and a light source (209, 309) is disposed contiguous to the plurality of layers. Second circuitry (228) is coupled to a voltage source (226) for selectively causing the light source (209, 309) to emit photons to strike the plurality of quantum dots (208 360). Similar stacks of layers (204, 206) may be added to provide a color display.
Abstract:
An apparatus includes a top plate [245] of a first transparent conductive material, a middle plate [225] of a second transparent conductive material, and a bottom plate [205] of conductive material. At least one upper dielectric layer [240] is disposed between the top plate [245] and the middle plate [225], and at least one lower dielectric layer [215] disposed between the bottom plate [205] and the middle plate [225]. A first electroluminescent layer [235] is disposed between the top plate [245] and the middle plate [225]. The first electroluminescent layer [235] has a first predetermined pattern. A second electroluminescent layer [215] is disposed between the middle plate [225] and the bottom plate [205]. The second electroluminescent layer [215] has a second predetermined pattern. The first electroluminescent layer [235] and the second electroluminescent layer [215] are powered by at least one alternating current power source to selectively display a simulated motion.
Abstract:
An electroluminescent display device contains an electroluminescent phosphor sandwiched between a pair of electrodes. An optically transmissive layer of an electrically conductive material is coated on a side of the device that is presented to a human observer to aid in the prevention of electric shock. The electrically conductive material layer is electrically connected to ground, such as the ground of an AC power supply for the device.