Abstract: An electron emission device includes first electrodes arranged on a substrate in a direction of the substrate, and an insulating layer arranged on an entire surface of the substrate and covering the first electrodes. Second electrodes are arranged on the insulating layer and are perpendicular to the first electrodes. Electron emission regions are connected to one of the first and the second electrodes. The lateral edges of the first electrodes and the lateral edges of the second electrodes respectively cross each other.

Abstract: A driving apparatus of a multi-function machine includes a scanner unit scanning data recorded on a sheet of document and a document transport part to transport the sheet of document. A printer unit prints data on a sheet of paper for an output and includes a carrier including a print head with an ink jet nozzle mounted thereon to carry out the printing operation by moving the print head. The driving apparatus includes a driving motor, a scanner driving part driving the scanner unit, a printer driving part driving the printer unit, and a power switching part disposed with the driving motor, the scanner driving part, and the printer driving part. The power switching part selectively transmits a power of the driving motor to at least one of the scanner driving part and the printer driving part.

Abstract: An electron emission device includes a substrate; a cathode electrode formed on the substrate; a gate electrode crossing the cathode electrode and insulated from the cathode electrode; and an electron emission region electrically connected to the cathode electrode. The cathode electrode includes a main electrode with an inner opening portion, an isolate electrode placed in the opening portion and spaced apart from the main electrode by a distance, and a resistance layer disposed between the main electrode and the isolate electrode. The isolate electrode has a via hole. The electron emission region contacts the isolate electrode, and is placed in the via hole. The isolate electrode has a first height, and the electron emission region has a second height smaller than the first height.

Abstract: An electron emission device includes a first substrate; a second substrate facing the first substrate and separated therefrom by a predetermined distance; cathode electrodes, each comprising first electrodes formed on the first substrate, and a plurality of second electrodes spaced apart from the first electrodes; electron emission regions formed on the plurality of second electrodes; resistance layers interconnecting the first electrodes and each of the plurality of second electrodes while surrounding the electron emission regions; an insulating layer positioned over the resistance layers and the cathode electrodes; and gate electrodes formed over the insulating layer.

Abstract: A surge protector coated with an oxide layer having an excellent chemical stability at the high temperature range and excellent adherence with respect to main discharge electrodes. The surge protector includes a column-shaped ceramic member that has a conductive film divided by a discharge gap interposed therebetween; a pair of main discharge electrode members opposite to each other on both ends of the column-shaped ceramic member to come in contact with the conductive film; and a cylindrical ceramic tube which is fitted to the pair of main discharge electrode members opposite to each other to seal both the column-shaped ceramic member and sealing gas inside thereof. Oxide films are formed on main discharge surfaces of at least the protrusive supporting portions of the pair of main discharge electrode members opposite to each other, by performing an oxidation treatment, respectively.

Abstract: An image forming apparatus including an image forming apparatus body, a printing engine installed in the image forming apparatus body and used to print an image on a printing medium supplied to the printing engine, a printing medium supply device having a loading plate to load printing media thereon and a frame to support the loading plate, the printing medium supply device being coupled to the image forming apparatus body to supply the printing media to the printing engine, and a pickup device to pick up the printing media loaded in the printing medium supply device one by one and to convey each picked-up printing medium to the printing engine. The printing medium supply device includes a printing medium aligning unit to push a lateral portion of the printing media when the printing media is loaded on the loading plate, so as to align the loaded printing media. With this configuration, the printing media loaded on the loading plate is automatically aligned by the printing medium aligning unit.

Abstract: An electron emission device includes a first substrate; a second substrate facing the first substrate and spaced apart from the first substrate; an electron emission unit on the first substrate, the electron emission unit having at least two electrodes and an emission region for emitting electrons; and a light emission unit on the second substrate to be excited by a beam formed with the electrons. The electron emission unit includes a focusing electrode for focusing the beam. The light emission unit includes a screen on which pixels are arranged in a pattern. Each of the pixels has a phosphor layer. The phosphor layer of one of the pixels is excited by the beam. The focusing electrode includes an opening, through which the beam passes. A length of the opening is LV, a pitch of a pixel is PV, and LV and PV satisfy: 0.25 ?LV/PV?0.60.

Abstract: This surge absorber includes an insulating part upon which is formed a conductive layer which is divided into two separate portions by a discharge gap (micro gap) around its circumferential surface; a pair of terminal electrodes which are arranged to oppose the insulating part, and contacts the conductive layer; an insulating tube at the ends of which the terminal electrodes are arranged, and which seals the insulating part in its interior along with seal gases; and a conductive portion provided at least between the terminal electrodes and the conductive layer. As a result, it becomes possible to provide a surge absorber of lower cost, and which is endowed with stabilized performance and high quality, while moreover it exhibits excellent durability.

Abstract: A driving apparatus of a multi-function machine includes a scanner unit scanning data recorded on a sheet of document and a document transport part to transport the sheet of document. A printer unit prints data on a sheet of paper for an output and includes a carrier including a print head with an ink jet nozzle mounted thereon to carry out the printing operation by moving the print head. The driving apparatus includes a driving motor, a scanner driving part driving the scanner unit, a printer driving part driving the printer unit, and a power switching part disposed with the driving motor, the scanner driving part, and the printer driving part. The power switching part selectively transmits a power of the driving motor to at least one of the scanner driving part and the printer driving part.

Abstract: An electron emission device and an electron emission display having the electron emission device. The electron emission device includes a substrate, a cathode electrode disposed on the substrate, and an electron emission region electrically connected to the cathode electrode. The cathode electrode includes a sub-electrode disposed on the substrate, a sub-insulation layer disposed on the sub-electrode, a main electrode disposed on the sub-electrode and having an opening for exposing a portion of the sub-insulation layer at each of a plurality of unit pixels, a plurality of isolation electrodes disposed on the sub-insulation layer in the opening of the main electrode and spaced apart from the main electrode, and a resistive layer disposed between the main electrode and the isolation electrodes to electrically connect the main electrode to the isolation electrodes.

Abstract: A light emission device includes: first and second substrates facing each other and spaced apart from each other; an electron emission region on an inner surface of the first substrate; a driving electrode on the inner surface of the first substrate to control an electron emission of the electron emission region; a phosphor layer on an inner surface of the second substrate; and a heat generation member on the inner surface of the second substrate or an outer surface of the second substrate to increase a temperature of the second substrate.

Abstract: A driving apparatus of a multi-function machine includes a scanner unit scanning data recorded on a sheet of document and a document transport part to transport the sheet of document. A printer unit prints data on a sheet of paper for an output and includes a carrier including a print head with an ink jet nozzle mounted thereon to carry out the printing operation by moving the print head. The driving apparatus includes a driving motor, a scanner driving part driving the scanner unit, a printer driving part driving the printer unit, and a power switching part disposed with the driving motor, the scanner driving part, and the printer driving part. The power switching part selectively transmits a power of the driving motor to at least one of the scanner driving part and the printer driving part.

Abstract: An electron emission device includes gate electrodes formed on a substrate. The gate electrodes are located on a first plane. An insulating layer is formed on the gate electrodes. Cathode electrodes are formed on the insulating layer. Electron emission regions are electrically connected to the cathode electrodes. The electron emission regions are located on a second plane. In addition, the electron emission device includes counter electrodes placed substantially on the second plane of the electron emission regions. The gate electrodes and the counter electrodes are for receiving a same voltage, and a distance, D, between at least one of the electron emission regions and at least one of the counter electrodes satisfies the following condition: 1(?m)?D?28.1553+1.7060t(?m), where t indicates a thickness of the insulating layer.

Abstract: An electron emission device where the electron emission of the emitter at the respective pixels is uniformly controlled. The electron emission device includes first and second substrates facing each other with a distance, and gate and cathode electrodes formed on the first substrate while interposing an insulating layer. Electron emission sources are electrically connected to the respective cathode electrodes. A resistance layer is disposed between the cathode electrode and the electron emission source in substantially the same plane as the cathode electrode. At least one anode electrode is formed on the second substrate. A phosphor screen is placed on a surface of the anode electrode.

Abstract: An electron emission device can include gate electrodes formed on a substrate and cathode electrodes insulated from the gate electrodes with an insulating layer interposed between them. Each cathode electrode can have a receptor at a peripheral side. Electron emission regions may be formed within the receptors and in contact with the cathode electrodes. Counter electrodes can face the cathode electrodes, can be coplanar with the cathode electrodes, and can be coupled to the gate electrodes. The shortest distance between the electron emission region and the counter electrode may be smaller than the shortest distance between the cathode electrode and the counter electrode.

Abstract: A method of manufacturing the electron emission device is provided. A cathode electrode is formed on a substrate. A first insulation layer of a transparent conductive material is formed on an entire surface of the substrate while covering the cathode electrode. A gate electrode of a transparent conductive material is formed on the first insulation layer in a direction crossing the cathode electrode. A photoresist mask layer is formed on the entire surface of the substrate. An opening corresponding to the opening of the cathode electrode is formed on the photoresist mask layer by emitting ultraviolet light to a rear surface of the substrate and developing the photoresist mask layer. An exposed portion of the gate electrode by the opening of the photoresist mask layer and a portion of the first insulation layer are etched. An electron emission region is formed in the opening of the cathode electrode.

Abstract: An electron emission device and a method of driving the electron emission device are capable of preventing the deterioration of luminance in displaying moving images by inhibiting the emission delay. The electron emission device includes cathode electrodes, gate electrodes formed over the cathode electrodes, and an insulating layer disposed between the cathode electrodes and the gate electrodes. Electron emission regions are formed on the cathode electrodes to emit electrons under the application of electric fields generated due to a difference between voltages applied to the cathode electrodes and the gate electrodes. A driving unit applies voltages to the cathode electrodes and the gate electrodes. An anode electrode receives a positive voltage to accelerate the electrons emitted from the electron emission regions. A first voltage Vc applied to the cathode electrodes and a second voltage Vg applied to the gate electrodes satisfy the following condition: 0.4?Vc/Vg<0.8.

Abstract: An electron emission device is disclosed. The electron emission device includes a cathode electrode including i) a first electrode, ii) a plurality of second electrodes, iii) at least one resistance layer adapted to electrically connect the first electrode and the plurality of second electrodes, and iv) a plurality of sub-electrodes. The plurality of sub-electrodes are adapted to electrically connect each other. At least one of the plurality of sub-electrodes contacts the resistance layer.

Abstract: An electron emission device is provided. The electron emission device includes first and second substrates facing each other, a cathode electrode arranged on the first substrate, at least one opening electron emission region arranged on the cathode electrode, an insulation layer arranged on the cathode electrode and provided with at least one opening corresponding to the at least one opening electron emission region, and a gate electrode arranged on the insulation layer and provided with at least one opening corresponding to the at least one electron emission region. A width H1 of the at least one opening of the insulation layer is equal to or greater than twice a thickness T1 of the insulation layer.

Abstract: An electron emission display includes first and second substrates facing each other, first electrodes formed on the first substrate, and electron emission regions electrically connected to the first electrodes. Second electrodes are placed over the first electrodes such that the second electrodes are electrically insulated from the first electrodes. The second electrodes have a plurality of openings for exposing the electron emission regions. A third electrode is placed over the second electrodes such that the third electrode is electrically insulated from the second electrodes. The third electrode has openings communicating with the openings of the second electrodes. The second and the third electrodes are structured to satisfy the following condition: 1.5?W2/W1?3.0 where W1 indicates the width of each opening of the second electrodes, and W2 indicates the width of the opening of the third electrode.