Abstract:
An integrated circuit package includes a die mounted on a substrate, an integrated heat spreader set above the die, and an array of carbon nanotubes mounted between the die and the integrated heat spreader. The integrated heat spreader is fixed on the substrate, and includes an inner face. The array of carbon nanotubes is formed on the inner face of the integrated heat spreader. Top and bottom ends of the carbon nanotubes perpendicularly contact the integrated heat spreader and the die respectively. Each carbon nanotube can be capsulated in a nanometer-scale metal having a high heat conduction coefficient.
Abstract:
A thermally conductive material includes a supercritical fluid and a number of carbon nanotubes incorporated in the supercritical fluid. The supercritical fluid may be selected from a group consisting of carbon dioxide, water, ammonia, ethane, ethane, nitrous oxide, propane, butane, pentane, and so on. The carbon nanotubes may be selected from the group consisting of single-wall carbon nanotubes, double-wall carbon nanotubes, mult-wall carbon nanotubes, or other kinds of carbon nanotubes. The carbon nanotubes have an average length of less than 1 micron and an average diameter of less than 100 nanometers. The supercritical fluid has dual characteristices of a liquid and a gas, and the carbon nanotubes have excellent thermal conductivity. As a result, the thermally conductive material becomes a nano-super heat conductor with excellent thermal conductivity and high efficiency of thermal conductivity, and is suitable for heat dissipation of various heat sources.
Abstract:
A cold cathode fluorescent lamp (30) includes a working gas (32), a transparent tube (34), a cold cathode (36), and an anode (38). The transparent tube receives the working gas therein, and the transparent tube has an inner surface (340). A coating (342) is formed on the inner surface of the transparent tube. The cold cathode and the anode are disposed at two ends of the transparent tube separately. A backlight module (50) includes a light guide plate (52) having a light incident surface (520), and the cold cathode fluorescent lamp as described above disposed adjacent the light incident surface.
Abstract:
An article includes a substrate, a transition layer, and a diamond like carbon film. The transition layer is directly formed on a surface of the substrate. The diamond like carbon film is deposited on the transition layer, in contact therewith. The diamond like carbon film includes a nitrogen-doped diamond like carbon layer, a nitrogen-hydrogen doped diamond like carbon layer, and a hydrogen-doped diamond like carbon layer formed on the transition layer, in series. The nitrogen-doped diamond like carbon layer, in particular, is immediately adjacent the transition layer.
Abstract:
A coating system (100) for an article is provided. The coating system includes a primer coating (110) mainly composed of a resin, a top coating (120) composed of 85˜99% by weight of a resin matrix and 1˜15% by weight of nano-oxide particles (122) for absorbing ultraviolet radiation. The primer coating is coated on a surface of the article. The top coating is coated on the primer coating and provides protection for the primer coating from ultraviolet radiation. Therefore, the coating system is prevented from peeling-off, and has a lengthened service lifetime.
Abstract:
An apparatus for producing nano-powder includes a laser generator for generating laser beams, a reaction chamber having an incident window configured for allowing the beams to pass therethrough, a vacuum system for evacuating the reaction chamber, a reactive gas input device for introducing reactive gases into the reaction chamber, a microwave unit for introducing microwave into the reaction chamber and creating microwave electron cyclotron resonance in the reaction chamber, and a powder collector for collecting nano-powder.
Abstract:
A light-emitting diode (LED) (110) includes a chip body (113), an encapsulation can (115) surrounding the chip body, and a base (111) supporting the encapsulation can and the chip body thereon. A diffraction grating (117) is provided at a surface of the encapsulation can, and the encapsulation can is made of a piezoelectric material for widening radiation angles of light beams emitted from the chip body. With the diffraction grating and the piezoelectric encapsulation can, light beams from the chip body are diffracted and attain wider radiation angles. A backlight system (100) includes a light guide plate (120), and a number of the above-described LEDs disposed adjacent to the light guide plate. Light beams having wide radiation angles are emitted from the LEDs and enter the light guide plate. This enables a light-emitting surface (122) of the light guide plate to have highly uniform brightness.
Abstract:
A back light system (2) includes a light guide plate (50). The light guide plate includes an array of prisms (55) formed thereon, and a nano-particle layer (80) formed on the prisms for diffusing light beams propagating therethrough. The nano-particle layer contains a mass of transparent nano-particles with diameters preferably in the range from 30˜100 nm. A material of the particles may be TiO2 (titanium oxide), SiO2 (silicon dioxide), or Al2O3 (aluminum oxide). Each light beam passing through the nano-particle layer is scattered, and most of the scattering occurs over a limited range of angles. The scattered light beams exit the nano-particle layer mostly over the limited range of angles, with a medial direction of propagation in the range of angles being substantially parallel to a viewing direction. The back light system can yield high brightness and uniform luminescence, and is relatively simple in construction and inexpensive.
Abstract:
An enclosure (100) for a portable electronic device includes an aluminum base (10), an alumina film (20), and a diamond-like carbon film (30). The alumina film is formed on the aluminum base, and the diamond-like carbon film is formed on the alumina film A method for making the enclosure for a portable electronic device includes the steps of forming an aluminum base; anodizing an alumina film on a surface of the aluminum base, and then forming a diamond-like carbon film on the alumina film.
Abstract:
A backlight device (100) includes a light guide plate (110), a light source (130) arranged at a side face of the light guide plate, a lamp cover (140) surrounding the light source, a light reflection plate (120) arranged below the light guide plate, a light diffusion plate (150) arranged over the light guide plate, and a brightness enhancement plate (160) arranged over the light diffusion plate. The light diffusion plate has a first optical film (151) and a plurality of first bumps (152) formed thereon and extending outwardly and toward the light guide plate. The brightness enhancement plate has a second optical film (161) and a plurality of second bumps (162) formed thereon and extending outwardly and away from the light diffusion structure.