Abstract:
A surface electron emission device and a display device having the same are provided to improve electron emission efficiency by forming a fullerene layer having high tension on an upper electrode. A surface electron emission device includes a lower electrode(312), an insulating layer(314), an upper electrode(319), and a nano-structure layer(320). The lower electrode, the insulating layer, and the upper electrode are laminated sequentially. The nano-structure layer is formed on electrode layer. The nano-structure layer is formed with a carbon nano-structure layer. The carbon nano-structure layer is formed with a fullerene layer. The nano-structure layer has a thickness of 0.2 to 20nm.
Abstract:
An electron source device comprising a porous layer (for example, a porous alumina layer), which is composed of an insulator and has many microholes extending in a direction perpendicular to the major surface, and first and second conductor layers disposed on both sides of the porous layer is characterized in that the current density (I/S) is 1 muA/cm2 or higher when a direct current voltage is applied between the second conductor layer and the first conductor layer while using the second conductor layer as an anode. In this case, S represents the overlapping area among the first conductor layer, the second conductor layer and the porous layer. Consequently, an electron source device having a high electron emission ability and a long life even when the degree of vacuum is low can be obtained at low cost. A display having a high luminous efficiency and high reliability can be realized by using this electron source device.
Abstract translation:一种电子源装置,包括由绝缘体构成并具有沿垂直于主表面的方向延伸的许多微孔的多孔层(例如,多孔氧化铝层)以及设置在主表面两侧的第一和第二导体层 多孔层的特征在于,当使用第二导体层作为阳极时,在第二导体层和第一导体层之间施加直流电压时,电流密度(I / S)为1μA/ cm 2以上。 在这种情况下,S表示第一导体层,第二导体层和多孔层之间的重叠面积。 因此,即使在真空度低的情况下也能够以低成本获得具有高电子发射能力和长寿命的电子源装置。 可以通过使用该电子源装置来实现具有高发光效率和高可靠性的显示器。
Abstract:
PROBLEM TO BE SOLVED: To provide an electron emitting element which hardly generates insulation breakdown and is produced easily at low cost and emits stably a suitable amount of electrons.SOLUTION: The electron emitting element 1 includes insulator fine particles 5 between an electrode base board 2 and a thin-film electrode 3, and has an electron acceleration layer 4 excluding conductive fine particles. The electron emitting element 1 emits an electron from the thin-film electrode 3 by accelerating the electron in the electron acceleration layer 4 when applying voltage between the electrode base board 2 and the thin-film electrode 3.
Abstract:
PROBLEM TO BE SOLVED: To provide an electron source which is a thin film type electron source having a lower electrode and an upper electrode and an electron acceleration layer comprising an insulator or a semiconductor between them starting a diode current at lower threshold voltage than in the prior art and capable of securing a diode current required for electron emission even at low voltage, and to realize an image display device having a long service life and low power. SOLUTION: It is realized by using noble metal of a platinum group (8 group) or an Ib group containing alkali metal oxide, alkaline earth metal compound and a transition-metal compound of 3 to 7 group from an interface with the electron acceleration layer to the surface or their laminated film, mixed film or alloy film as the upper electrode. COPYRIGHT: (C)2007,JPO&INPIT