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 flat panel display device includes an electron emission substrate; an image forming substrate spaced apart from the electron emission substrate; a spacer disposed between the electron emission substrate and the image forming substrate; a detector coupled to the electron emission substrate for detecting a temperature value of the flat panel display device; a temperature controlling part for receiving the receiving the temperature value and for controlling a temperature of the electron emission substrate based on the received temperature value; and a cooler for cooling the flat panel display device to be at the temperature controlled by the temperature controlling part.

Abstract: An electron emission device includes first and second substrates facing each other, an electron emission structure formed on the first substrate, and a light emission structure formed on the second substrate. The light emission structure has phosphor layers and an anode electrode formed on a surface of the phosphor layers. An adhesive film is formed at the peripheries of the first and the second substrates to attach the first and the second substrates to each other. At least one lead portion crosses the adhesive film on the second substrate, and is connected to the anode electrode. The lead portion is partitioned into a plurality of lead lines at the crossed region thereof with the adhesive film, and the plurality of lead lines are spaced from each other.

Abstract: An electron emission device is provided including a first substrate and a second substrate facing each other and separated from each other by a predetermined distance. An electron emission unit is disposed on the first substrate, and a light emission unit is disposed on a surface of the second substrate facing the first substrate. A grid electrode is disposed between the first substrate and the second substrate, and has a hole region with a plurality of electron beam-guide holes and a no-hole region surrounding the hole region. The first substrate has a first active area and a first outer portion. The second substrate has a second active area and a second outer portion. The grid electrode has a larger area than the first active area and the second active area, and the no-hole region is disposed corresponding to the first outer portion.

Abstract: A light emission device including first and second substrates facing each other, electron emission elements on the first substrate, an anode electrode with a phosphor layer on the second substrate, and spacers between the first and second substrates. Each spacer includes a spacer body comprising a dielectric material, a first coating layer on a first region of the spacer body, the first region being adjacent to the first substrate, and a second coating layer on a second region of the spacer body, the second region being adjacent to the second substrate, wherein a maximum secondary electron emission coefficient of the first coating layer under an operation voltage condition applied to the first region is about 0.8 to about 1 and a maximum secondary electron emission coefficient of the second coating layer under an operation voltage condition applied to the first and second regions is about 3 to about 16.

Abstract: The present invention relates to an electron emission device, and more particularly, to an electron emission device comprising a grid electrode having a thermal expansion coefficient ranging from about 80 to about 120% of the thermal expansion coefficient of the first or second substrate of the electron emission device. The grid electrode is fixed in position by minimizing misalignment caused by a difference in thermal expansion coefficients between the grid electrode and the first and second substrates of the electron emission device. The grid electrode also minimizes generation of arc discharge. However, even when arc discharge is generated, the grid electrode prevents damage to the cathode electrodes and gate electrodes from that arc discharge. According to the present invention, an electron emission device with increased brightness and resolution is easily realized by applying increased voltage to the anode electrode.

Abstract: A light emission device and a display having the light emission device are provided. The light emission device includes first and second substrates arranged opposite to each other, an electron emission unit provided on the first substrate, a light emission unit provided on the second substrate, and spacers that are supportably disposed between the first and second substrates. The spacers are formed in a pillar configuration and each side of the spacers is arranged at an acute angle with respect to an edge of driving electrodes of the electron emission unit.

Abstract: In an electron emission device, the surface roughness of a substrate with driving electrodes and an insulating layer is optimized. The electron emission device includes first and second substrates facing each other with a predetermined distance therebetween. An electron emission unit is formed on a surface of the first substrate facing the second substrate, and includes electron emission regions, a plurality of driving electrodes, and an insulating layer for insulating the driving electrodes from each other. A light emission unit is formed on a surface of the second substrate facing the first substrate, and includes phosphor layers and an anode electrode. The first substrate satisfies the following condition: 0.5 nm?Ra?1.8 nm, where Ra indicates the average roughness of the surface of the first substrate facing the second substrate.

Abstract: A flat panel display to maintain resistance of lines at the same level to reduce a luminance difference between the lines includes a plurality of electrodes and a plurality of lead lines to respectively connect a plurality of pads to the plurality of electrodes. The lead lines are formed in a parallelogram shape in which resistivity and line width are the same for each, and a length L and a line width W of each lead line are selected such that a value obtained by dividing the length L by the line width W may satisfy an equation of L 1 W 1 = L 2 W 2 = L 3 W 3 = … = L n W n , where L1, L2, L3, . . . , and Ln respectively refers to long side lengths, which are direct line distances between the electrode and the pad, of the respective lead lines formed in the parallelogram shape, and W1, W2, W3, . . . , and Wn respectively refers to widths, which are short side vertical distances of the respective lead lines formed in the parallelogram shape.

Abstract: A field emission display includes a first substrate and a second substrate that face one another with a predetermined gap therebetween. An electron emission assembly that emits electrons by generating an electric field is formed on the first substrate, and an illumination assembly that realizes the display of images responsive to the emitted electrons is formed on the second substrate. A grid plate is mounted between the first and second substrates and is configured to focus the emitted electrons. The grid plate includes a mask section having apertures through which electron beams formed by the emitted electrons are passed, and protrusions integrally formed thereon and extending from one side of the mask section to support the mask section over the first substrate.

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 includes a first substrate and a second substrate facing one another and having a predetermined gap therebetween. An electron emission region for emitting electrons is formed on the first substrate, and an illumination portion for displaying images responsive to the electrons emitted from the electron emission region is formed on the second substrate. A grid electrode is mounted between the first and second substrates and configured to focus the electrons emitted from the electron emission assembly. The grid electrode is provided with a plurality of electron passage openings, of which at least one portion of the interior wall of at least one of the electron passage openings is formed with an inclined plane relative to the first substrate.

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 field emission display (FED) includes first and second substrates opposing one another with a predetermined gap therebetween. The FED also includes cathode electrodes formed in a stripe pattern on the first substrate, and a plurality of electron emission sources formed on the cathode electrodes; gate electrodes formed on the first substrate in a state insulated from the cathode electrodes and the electron emission sources by an insulating layer; and anode electrodes formed on a surface of the second substrate opposing the first substrate, and including phosphor layers formed thereon. A pair of fixing rails are formed along two opposing edges of one of the first and second substrates, the fixing rails having undergone a blackening process; and a metal grid provided between the first and second substrates and welded to an upper surface of the fixing rails.

Abstract: A field emission display. Gate electrodes are formed in a predetermined pattern on a first substrate. An insulation layer is formed on the first substrate covering the gate electrodes. Cathode electrodes are formed in a predetermined pattern on the insulation layer. Emitters are provided electrically contacting the cathode electrodes. A second substrate is provided opposing the first substrate with a predetermined gap therebetween. The first substrate and the second substrate form a vacuum container. An anode electrode is formed on a surface of the second substrate opposing the first substrate. Phosphor layers are formed in a predetermined pattern on the anode electrode. Portions of the cathode electrodes are removed to form emitter-receiving sections. Fences are formed between the emitter-receiving sections, one of the emitters being provided in each of the emitter-receiving sections electrically contacting the cathode electrodes.

Abstract: A field emission display (FED) includes first and second substrates opposing one another with a predetermined gap therebetween. The FED also includes cathode electrodes formed in a stripe pattern on the first substrate, and a plurality of electron emission sources formed on the cathode electrodes; gate electrodes formed on the first substrate in a state insulated from the cathode electrodes and the electron emission sources by an insulating layer; and anode electrodes formed on a surface of the second substrate opposing the first substrate, and including phosphor layers formed thereon. A pair of fixing rails are formed along two opposing edges of one of the first and second substrates, the fixing rails having undergone a blackening process; and a metal grid provided between the first and second substrates and welded to an upper surface of the fixing rails.

Abstract: An embodiment of an electron emission device includes first and second substrates facing each other, unit pixels being defined on the first and the second substrates, an electron emission unit on the first substrate, phosphor layers on a surface of the second substrate facing the first substrate, each phosphor layer corresponding to at least one unit pixel, non-light emission regions between the phosphor layers, and spacers interposed between the first and the second substrates and arranged in the non-light emission regions, wherein the non-light emission regions comprise spacer loading regions loaded with the spacers, wherein a width of a spacer loading region and a pitch of the unit pixels satisfies the following condition: A/B?about 0.2, where A indicates the width of the spacer loading region and B indicates the pitch of the unit pixels located along the width of the spacer loading region.

Abstract: There is provided an electron emission device where the adhesion between lead portions of an anode electrode and an adhesive film is enhanced to give the vacuum structure an excellent hermetic seal property. The electron emission device includes first and second substrates facing each other, an electron emission structure formed on the first substrate, and a light emission structure formed on the second substrate. The light emission structure has phosphor layers and an anode electrode formed on a surface of the phosphor layers. An adhesive film is formed at the peripheries of the first and the second substrates to attach the first and the second substrates to each other. At least one lead portion crosses the adhesive film on the second substrate, and is connected to the anode electrode. The lead portion is partitioned into a plurality of lead lines at the crossed region thereof with the adhesive film, and the plurality of lead lines are spaced from each other.

Abstract: In an electron emission device, the surface roughness of a substrate with driving electrodes and an insulating layer is optimized. The electron emission device includes first and second substrates facing each other with a predetermined distance therebetween. An electron emission unit is formed on a surface of the first substrate facing the second substrate, and includes electron emission regions, a plurality of driving electrodes, and an insulating layer for insulating the driving electrodes from each other. A light emission unit is formed on a surface of the second substrate facing the first substrate, and includes phosphor layers and an anode electrode. The first substrate satisfies the following condition: 0.5 nm?Ra?1.8 nm, where Ra indicates the average roughness of the surface of the first substrate facing the second substrate.

Abstract: An electron emission device includes a first substrate, a second substrate facing the first substrate, a scan electrode formed on the first substrate and having a width Sv, and a data electrode formed on the first substrate perpendicular to and crossing the scan electrode at a crossed region. A unit pixel is disposed in an area of the crossed region and has a pitch Pv. An insulating layer is disposed between the scan electrodes and the data electrodes. An electron emission region is electrically coupled the scan electrode or the data electrode, and the scan electrode and the unit pixel satisfy the following condition: 0.5?Sv/Pv?0.95.