摘要:
A light source apparatus (8) includes a rear plate (80), a front plate formed with an anode layer (82), and a cathode (81) interposed therebetween. The cathode includes a plurality of electrically conductive carriers (812) and a plurality of field emitters (816) formed thereon. The field emitters are uniformly distributed on anode-facing surfaces of the conductive carriers. Preferably, the field emitters extend radially outwardly from the corresponding conductive carriers. The conductive carriers are parallel with each other, and are located substantially on a common plane. Each of the conductive carriers can be connected with a pulling device arranged at least one end thereof, and an example of the pulling device is a spring. The conductive carriers may be cylindrical, prism-shaped or polyhedral.
摘要:
A method for manufacturing isotope-doped carbon nanotubes (10) includes the steps of: (a) providing a carbon rod (209) connected with an anode (214) of an electrical source, the carbon rod including at least two kinds of carbon isotope segments (202, 203) arranged therealong according to need; (b) providing a pure carbon rod (208) connected with a cathode (215) of the electrical source, the pure carbon rod positioned corresponding to the carbon rod and including carbon-12 isotopes; and (c) producing an arc discharge between the carbon rod and the pure carbon rod, wherein the carbon isotope segments of the carbon rod are consumed sequentially to form the isotope-doped carbon nanotubes on a surface of the pure carbon rod. Growth mechanisms of the isotope-doped carbon nanotubes manufactured by this method can be readily studied.
摘要:
An exemplary electron emission device includes an electron emitter, an anode opposite to and spaced apart from the electron emitter, a first power supply circuit, and a second power supply circuit. The first power supply circuit is configured for electrically connecting the electron emitter and the anode with a power supply to generate an electric field between the electron emitter and the anode. The second power supply circuit is configured for electrically connecting the electron emitter with a power supply to supply a heating current for heating the electron emitter whereby electrons emit therefrom. Methods for generating an emission current with a relatively higher stability also are provided.
摘要:
A method for making a liquid crystal display screen includes the following steps. Firstly, providing a base including a surface. Secondly, forming carbon nanotube structure on the surface of the base to obtain a first electrode plate preform, the carbon nanotubes of each carbon nanotube structure being oriented along the extending direction thereof. Thirdly, forming a fixing layer to cover the carbon nanotube structure, thereby obtaining a first electrode plate. Fourthly, repeating the above-described steps, thereby obtaining a second electrode plate. Lastly, forming a liquid crystal layer between the fixing layers of the first electrode plate and the second electrode plate, the carbon nanotubes of the first electrode plate being perpendicular to that of the second electrode plate, thereby forming the liquid crystal display screen.
摘要:
A liquid crystal display screen includes a first electrode plate, a second electrode plate opposite to the first electrode plate and a liquid crystal layer sandwiched between the first electrode plate and the second electrode plate. A first alignment layer is located on the first electrode plate and faces the liquid crystal layer. The first alignment layer comprises a plurality of parallel first grooves defined therein. A second alignment layer is located on the second electrode plate and faces the liquid crystal layer. The second alignment layer comprises a plurality of parallel second grooves defined therein. The second grooves are perpendicular to the first grooves. At least one of the first alignment layer and second alignment layer comprises a carbon nanotube layer and a fixing layer located thereon facing the liquid crystal layer. The carbon nanotube layer comprises a plurality of carbon nanotube wires being arranged in parallel and closely located.
摘要:
A liquid crystal display includes a first substrate, a first alignment layer, a liquid crystal layer, a second alignment layer, and a second substrate opposite to the first substrate, a first electrode and a second electrode. The liquid crystal layer is sandwiched between the first substrate and the second substrate. The first alignment layer is located on the first substrate and face the liquid crystal layer. The second alignment layer is located on the second substrate and face the liquid crystal layer. Furthermore, at least one of the first and second alignment layers comprises a carbon nanotube structure, and the carbon nanotube structure is electrically connected to the first electrode and the second electrode.
摘要:
A solar collector includes a substrate having a top surface and a bottom surface opposite to the upper surface, a sidewall, a transparent cover, and a heat-absorbing layer. The sidewall is arranged on the periphery of the top surface of the substrate. The transparent cover is disposed on the sidewall opposite to the substrate to form a sealed chamber. The heat-absorbing layer is disposed on the upper surface of the substrate and includes a carbon nanotube film having a plurality of carbon nanotubes. The carbon nanotubes in the carbon nanotube film are joined end-to-end.
摘要:
A method for making the thermal electron emitter includes following steps. Providing a carbon nanotube film including a plurality of carbon nanotubes. Treating the carbon nanotube film with a solution comprising of a solvent and compound or a precursor of a compound, wherein the compound and the compound that is the basis of the precursor of a compound has a work function that is lower than the carbon nanotubes. Twisting the treated carbon nanotube film to form a carbon nanotube twisted wire. Drying the carbon nanotube twisted wire. Activating the carbon nanotube twisted wire.
摘要:
An electron emission device includes a cathode electrode and a gate electrode, the gate electrode is separated and insulated from the cathode, the gate electrode is a CNT layer, and the CNT layer includes at least a carbon nanotube film and a plurality of carbon nanotube reinforcement structures. A display that includes the electron emission device is also disclosed.
摘要:
A liquid crystal display screen includes a first substrate, a first alignment layer, a liquid crystal layer, a second alignment layer, and a second substrate opposite to the first substrate. The liquid crystal layer is sandwiched between the first substrate and the second substrate. The first alignment layer and the second alignment layer are respectively disposed on the first substrate and the second substrate, and face the liquid crystal layer. The first alignment layer and the second alignment layer respectively include a plurality of parallel first grooves and second grooves perpendicular to the first grooves formed thereon facing the liquid crystal layer. Furthermore, at least one of the alignment layers includes a carbon nanotube layer and a fixing layer disposed thereon facing the liquid crystal layer. The carbon nanotube layer includes at least one carbon nanotube film pulled out from an array of carbon nanotubes.