Abstract:
A method for manufacturing a spacer of a field emission device and a base material for the spacer is provided to easily remove a substrate from a spacer by using a release agent formed on the substrate. A release agent(12) is formed on a substrate(11). A colloid(13) is formed on the release agent on the substrate. The substrate is made of a material, which is selected from the group consisting of glass, metal, and ceramic. The release agent is made of a material, which is selected from the group consisting of graphite, ceramic powder, softener, hydrophilic agent, and a mixture thereof. The colloid is glass cement. The glass cement is made of a material, which is selected from the group consisting of lead oxide, boron oxide, zinc oxide, silica, sodium oxide, alumina, calcium oxide, and a mixture thereof.
Abstract:
유사 다이아몬드 탄소 필름의 제조방법이 공개된다. 상기 제조법은, (a) 기재를 반응 챔버에 고정시키고; (b) 반응 챔버의 압력을 10 -6 torr 이하로 펌핑하고; (c) 탄소-함유 기체를 반응 챔버에 유입시키고; 그리고 (d) 흑연 타겟을 스퍼터링(sputtering)하여 유사 다이아몬드 탄소 필름을 기재 위에 증착하는 단계로 이루어진다. 상기 증착된 DLC 필름은 플레이크 형태로 되어있다. 상기 기재에 증착된 DLC 필름의 외관은 장미 모양이다. 또한, 상기 증착된 DLC 필름의 높이는 수 마이크로미터이고, 두께는 수 나노미터이다. 상기 증착된 플레이크 형태의 DLC 필름의 측면 비율이 높이 때문에 상기 증착된 DLC 필름은 전계 방출을 증가시킬 수 있다. 유사 다이아몬드 탄소 필름, 기재, 플레이크 형태, 스퍼터링 공정, 전계 방출, 흑연 타겟, 탄화수소, 반응 챔버, 전도층
Abstract:
An in vitro flavonoid-rich rhizome tissue of Neomarica gracilis is provided to contain tectorigenin, thereby being distinctively different from a naturally grown rhizome of N. gracilis containing no tectorigenin. An in vitro flavonoid-rich tissue is derived from Neomarica gracilis obtained from a tissue culture preparation which alters the flavonoid content of the Neomarica gracilis and comprises tectorigenin. A method for obtaining the in vitro flavonoid-rich tissue from N. gracilis comprises the steps of: (a) inoculating an N. gracilis tissue in a culture medium of the tissue culture preparation, wherein the N. gracilis tissue is capable of proliferating; and (b) growing the N. gracilis tissue in the tissue culture preparation for a sufficient amount of time to allow a rhizome tissue to form. A method for extracting tectorigenin from the in vitro flavonoid-rich tissue of N. gracilis comprises the steps of: (a) drying the in vitro flavonoid-rich tissue of N. gracilis to obtain a dried flavonoid-rich tissue; (b) adding an alcohol to the dried in vitro flavonoid-rich tissue to form a suspension; (c) heating the suspension to form a heated suspension; and (d) after cooling the heated suspension, filtering the heated suspension to collect an filtrate containing the tectorigenin. Further, the dried in vitro flavonoid-rich tissue of N. gracilis is obtained by cooling-drying the in vitro flavonoid-rich tissue of N. gracilis, and the suspension is heated at 50 to 70 °C.
Abstract:
A flat field emission illumination module is provided to enlarge a field emission illumination region and to increase brightness by forming a plurality of grooves or a plurality of openings on an anode. A flat field emission illumination module includes a top substrate(100), a bottom substrate(103), an anode(101), and an illumination layer. The bottom substrate includes a plurality of cathodes(104) and a plurality of electron emitters(105). The cathodes are positioned on a top surface of the bottom substrate. The electron emitters are mounted on the cathodes. The anode is positioned between the top and bottom substrates. A plurality of grooves or a plurality of openings are formed on a bottom surface of the anode. The electron emitters are installed in the grooves or the openings after an assembling process of the flat field emission illumination module. An illumination layer is positioned at an inner surface of the grooves or the openings.
Abstract:
An electron emission source and a field emission display device are provided to enable a diamond-like carbon composition to have a high aspect ratio through a film structure having a micro-scale height and a nano-scale thickness. An electron emission source includes a substrate(111) and an electron emission layer formed on the substrate. The electron emission layer contains diamond-like carbon flake composition having plural micro-scale film structures. The composition further contains a conductive substance, an adhesive substance, or its compound. The film structure has a thickness of 0.005 to 0.1 micrometers and a lateral height of 0.5 to 4.0 micrometers.
Abstract:
PURPOSE: A manufacturing method of a door for a refrigerator is provided to simplify the manufacturing process and to reduce the cost, by reducing the number of parts of the door, and to enable various design of the door by changing the pattern and shape of the door. CONSTITUTION: A manufacturing method of a door for a refrigerator comprises steps of printing an exterior pattern on the inside of a transparent plastic layer(SA); situating the transparent plastic layer on a mold of a vacuum forming device to oppose the inside, on which the exterior pattern is printed, to the mold of the vacuum forming device(SB); forming the transparent plastic layer in a refrigerator door body in a vacuum state(SC); removing burrs from the periphery of the refrigerator door body(SD); situating the refrigerator door body to a lower mold of a foamed jig while the inside on which the exterior pattern is printed is turned upward(SE); pouring PU(Polyurethane) foaming material on the inside of the refrigerator door body(SF); putting a door lining on the PU foaming material and the refrigerator door body(SG); closing the lower mold with an upper mold of the foamed jig and then compressing and foaming the PU foaming material inside the door of the refrigerator(SH); and separating the lower and upper molds of the foamed jig and withdrawing the door of the refrigerator(SI).