摘要:
There is provided an LED driving circuit. The LED driving circuit according to an aspect of the invention may include: at least one ladder circuit including: (n−1) number (here, n is a positive integer satisfying n≧2) of first branches provided between first and second junction points, and connected in-line with each other by n number of first middle junction points, (n−1) number of second branches arranged in parallel with the first branches, and connected in-line with each other by n number of second middle junction points between the first and second junction points, and n number of middle branches connecting m-th first and second middle junction points to each other, wherein at least one LED device is disposed on each of the first, second, and middle branches. Here, the number of LED devices included in each of the first and second branches is greater than the number of LED devices included in each of the middle branches.
摘要:
An alternating current (AC) driven light emitting device includes a substrate, K number of first light emitting diode (LED) cells arranged in a row on a top surface of the substrate, where K is an integer satisfying K≧3, K number of second LED cells arranged in a row parallel to the row of the first LED cells on the top surface of the substrate, and (K−1) number of third LED cells arranged in a row between the respective rows of the first and second LED cells on the top surface of the substrate. The AC driven light emitting device has a connection structure between LED cells to be operable at an AC.
摘要:
The present invention provides a light emitting diode package including: a package mold having a first cavity and a second cavity with a smaller size than that of the first cavity; first and second electrode pads provided on the bottom surfaces of the first cavity and the second cavity, respectively; an LED chip mounted on the first electrode pad; a wire for providing electrical connection between the LED chip and the second electrode pad; and a molding material filled within the first cavity and the second cavity.
摘要:
There is provided an LED package having high heat dissipation efficiency. An LED package according to an aspect of the invention may include: a package body including a first groove portion being recessed into the package body and provided as a mounting area on the top of the package body; first and second lead frames arranged on a lower surface of the first groove portion while parts of the first and second lead frames are exposed; an LED chip mounted onto the lower surface of the first groove portion and electrically connected to the first and second lead frames; and a plurality of heat dissipation patterns provided on the bottom of the package body and formed of carbon nanotubes.
摘要:
The present invention relates to an anti-aging cosmetic composition, and more particularly, the present invention relates to an anti-aging cosmetic composition containing Hibiscus esculentus extracts and at least one selected from the group consisting of oleanolic acid, ursolic acid, glycyrhetinic acid and retinol, showing high safety to skin and wrinkle-improvement effect.
摘要:
A metal line in a semiconductor device includes an insulation layer formed on a semiconductor substrate. A metal line forming region is formed in the insulation layer. A metal line is formed to fill the metal line forming region of the insulation layer. And a diffusion barrier that includes an amorphous TaBN layer is formed between the metal line and the insulation layer. The amorphous TaBN layer prevents a copper component from diffusing into the semiconductor substrate, thereby improving upon the characteristics and the reliability of a device.
摘要:
A metal line of a semiconductor device having a diffusion barrier including CrxBy and a method for forming the same is described. The metal line of a semiconductor device includes an insulation layer formed on a semiconductor substrate. The insulation layer is formed having a metal line forming region. A diffusion barrier including a CrxBy layer is subsequently formed on the surface of the metal line forming region and the insulation layer. A metal line is finally formed to fill the metal line forming region of the insulation layer on the diffusion barrier including a CrxBy layer.
摘要翻译:描述了具有包括CrxBy的扩散阻挡层的半导体器件的金属线及其形成方法。 半导体器件的金属线包括形成在半导体衬底上的绝缘层。 绝缘层形成有金属线形成区域。 随后在金属线形成区域和绝缘层的表面上形成包括Cr x B y层的扩散阻挡层。 最后形成金属线以填充包含CrxBy层的扩散阻挡层上的绝缘层的金属线形成区域。
摘要:
Disclosed herein is a digital automatic fine tuning method and apparatus, which is capable of detecting a difference between a nominal frequency and an intermediate frequency generated in a tuner using a counter, and applying the counted data of the counter as a fine tuning value for the intermediate frequency without using a decoder by controlling the reset and preset operations of the counter that counts the frequency of the intermediate frequency.
摘要:
A cigar splitter comprises: a housing having two open ends, an inside wall and outside surface, and a long axis, wherein the open ends are in line with each other permitting a cigar to be inserted through one end and out the other. A blade is attached to the inside of the housing, the blade oriented for cutting an outer sheath of the cigar as the cigar is inserted through one end of the splitter housing and out the other end. An apparatus for lighting and splitting a cigar comprising a cigar splitter as described above and can maintain active and inactive configurations of the splitter for safety of the user.
摘要:
According to the hair dryer of the present invention, which is capable of adjusting the volume of unheated air discharged at the same time as hot air; the hot air is discharged through a first discharge outlet and, simultaneously, the unheated air is discharged through a second discharge outlet, and damage to hair caused by hot drying can be prevented by alternately using the hot air and the unheated air while the hair dryer is in use.