Abstract:
A respirator 10 that includes a mask body 12 and at least one filter cartridge 24. The mask body 12 has a central portion 14 and a peripheral portion 16. The filter cartridge 24 is attached to the rigid central portion 16. The peripheral portion 14 is made from a low stiffness first thermoplastic material, and the central portion 16 is made from a rigid second thermoplastic material. The first thermoplastic material is welded to the second thermoplastic material. A respirator of this structure can be made in a convenient manner, with a sound hermetic bond between the parts, while also being light in weight.
Abstract:
There is provided a printed circuit board for reducing crosstalk, having a capacitive impedance component connected between signal and ground patterns, the printed circuit board including: signal patterns including a first signal pattern transferring low frequency signals and a second signal pattern transferring high frequency signals; ground patterns including a first ground pattern connected to the first signal pattern and a second ground pattern connected to the second signal pattern which are separated from each other; and a conductive shielding film connected between the first and second ground patterns and shielding electromagnetic waves generated from the printed circuit board. Accordingly, crosstalk between the low and high frequency signals may be reduced.
Abstract:
Disclosed herein is a touch panel 100 including: a transparent substrate 10, first electrode patterns 20 that are formed on one surface of the transparent substrate 10 and include a plurality of first sensing units 23 and connecting units 25 connecting adjacent first sensing units 23, and second electrode patterns 30 that are formed on one surface of the transparent substrate 10 vertically with the first electrode patterns 20 and include a plurality of second sensing units 33 and bridges 35 connecting the adjacent second sensing units 33 to be spaced apart from the connecting units 25, wherein the bridge 35 is divided to form two or more bridge patterns 37. The bridge is divided to form two or more bridge patterns so that a user cannot recognize the bridge, thereby making it possible to improve visibility of the touch panel.
Abstract:
A printed circuit board is disclosed. The printed circuit board in accordance with an embodiment of the present invention can include an insulation substrate, a first ground, which is formed on one surface of the insulation substrate and connected to a first power source, a second ground, which is formed on one surface of the insulation substrate and connected to a second power source, a separator, which separates the first ground from the second ground, a first signal line, which is stacked on at least one of the first ground and the second ground, and a second signal line, which is stacked on at least one of the first ground and the second ground and is adjacent to the first signal line. The separator can include a curved part, which is bent in between the first signal line and the second signal line.
Abstract:
A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a cylinder-shaped coil unit, a vibrator, which is inserted into the coil unit and includes a magnet that forms an asymmetric magnetic field in a vibration direction, and an elastic body, which elastically supports the vibrator. Thus, the vibration motor can have a nonlinear characteristic, and thus a frequency bandwidth in which a resonance occurs can be expanded.
Abstract:
A linear vibrator is disclosed. The linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively, and a plurality of leaf springs, which are interposed between the magnet and the base. Here, the plurality of leaf springs face one another and are coupled to one another Thus, the linear vibrator can increase the range of vibration displacement in a structure and increase the amount of vibration in the linear vibrator. Also, even though the linear vibrator becomes thinner, the range of displacement can be increased because the weight is vibrated horizontally.
Abstract:
A variable phase shifter is provided. In the variable phase shifter, a fixed substrate, which is a dielectric substrate, is fixedly mounted in a housing and has at least one arc-shaped microstrip line on one surface thereof. A rotation substrate, which is a dielectric substrate, is rotatably mounted in the housing, in contact with the other surface of the fixed substrate and has a slot line on the contact surface thereof. Microstrip-slot line coupling takes place between the microstrip line and the slot line even during rotation. Both ends of the microstrip line are connected to an output port of the variable phase shifter and the slot line is electrically connected to an input port of the variable phase shifter, for receiving an input signal.
Abstract:
Disclosed herein is a method of curing a color filter for an electronic display using an electron beam at low temperature. A conventional method of curing the color filter by thermal-heating is not suitable for a process of fabricating next generation flexible displays. In the method of the invention, after a color resist pattern is formed on a substrate, the resist is cured by an electron beam at 100° C. or less. Hence, the method can minimize damage of the substrate while facilitating dimension control of the color pattern and achieving precision of a fine pattern. A method of fabricating a color filter for an electronic display using the method is also disclosed.