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    • 3. 发明授权
    • Fabrication process for electron field-emission display
    • 电子场发射显示的制作工艺
    • US6015326A
    • 2000-01-18
    • US900915
    • 1997-07-28
    • Michael D Potter
    • Michael D Potter
    • C09K11/67C09K11/68C09K11/69C09K11/77H01J9/227H01J9/14
    • H01J9/227C09K11/672C09K11/682C09K11/693C09K11/7702C09K11/7708
    • An electron field-emission display comprises one or more display cell structures, each having a field-emission cathode and an anode comprising at least one of several cathodoluminescent phosphors disclosed which are stimulable by electrons of very low energy. The display cell structures may also have gate elements for controlling electron current flowing from cathode to anode when suitable electrical bias voltages are applied. A preferred fabrication process integrates an etch stop with an in situ phosphor formation process. The etch stop precisely defines the depth of an opening in the display cell structure. Metal oxides or mixed-metal oxides of zinc, copper, tin, or indium are heated in the presence of a refractory metal such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, or combinations thereof to make phosphors of various chromaticities, which may also include dopants, such as a lanthanide rare earth element, manganese, chromium, or stoichiometrically excess zinc, copper, tin, or indium. A blue-light-emitting phosphor embodiment is based on ZnO treated with refractory metals, e.g. Ta, to prepare cathodoluminescent phosphor compositions, e.g. Ta.sub.2 Zn.sub.3 O.sub.8. Selective arrangement of various color phosphors may be made by selective deposition of suitable dopants. The selective deposition may be done, e.g. by chemical vapor deposition with appropriate masking, or by selective ion implantation.
    • 电子场致发射显示器包括一个或多个显示单元结构,每个显示单元结构都具有场发射阴极和阳极,其包括可被非常低能量的电子刺激的几种阴极发光荧光体中的至少一种。 当施加适当的电偏压时,显示单元结构还可以具有用于控制从阴极流向阳极的电子电流的栅极元件。 优选的制造工艺将蚀刻停止与原位磷光体形成工艺相结合。 蚀刻停止件精确地限定显示单元结构中的开口的深度。 金属氧化物或锌,铜,锡或铟的混合金属氧化物在难熔金属如钛,锆,铪,钒,铌,钽,铬,钼,钨或其组合的存在下加热, 各种色度的荧光体,其还可以包括掺杂剂,例如镧系元素稀土元素,锰,铬或化学计量过量的锌,铜,锡或铟。 蓝色发光荧光体实施方案基于用难熔金属处理的ZnO,例如, Ta,以制备阴极发光荧光体组合物,例如 Ta2Zn3O8。 可以通过选择性沉积合适的掺杂剂来进行各种彩色荧光体的选择性布置。 可以进行选择性沉积,例如 通过适当掩蔽的化学气相沉积,或通过选择性离子注入。
    • 4. 发明授权
    • Oxide based phosphors and processes therefor
    • US06254805B1
    • 2001-07-03
    • US09361423
    • 1999-07-27
    • Michael D. Potter
    • Michael D. Potter
    • C09K1167
    • H01J9/227C09K11/672C09K11/682C09K11/693C09K11/7702C09K11/7708
    • A phosphor comprises, in atomic percentages, 90% to 100% of a mixed metal oxide MxTyOz, wherein M is a metal selected from Zn, Sn, In, Cu, and combinations thereof, T is a refractory metal selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and combinations thereof, and O is Oxygen, x, y, and z being chosen such that z is at most stoichiometric for MxTyOz; and 0% to 10% of a dopant comprising a substance selected from a rare earth element of the lanthanide series, Mn, Cr, and combinations thereof, or stoichiometrically excess zinc, copper, tin, or indium. Cathodoluminescent phosphor compositions stimulable by electrons of very low energy are prepared from metal oxides treated with refractory metals in various processes disclosed. Metal oxides or mixed-metal oxides of zinc, copper, tin, or indium are heated in the presence of a refractory metal such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, or combinations or alloys thereof to make phosphors of various chromaticities. In a simple embodiment, a quantity of Ta2O5 is added to a quantity of ZnO and heated at an effective temperature and time to form Ta2Zn3O8, which is useful in various forms as a blue-light-emitting phosphor. In preferred embodiments, the phosphors are prepared in situ in an electrically-conductive thin-film or surface-layer form during fabrication of displays.
    • 5. 发明授权
    • Electron field-emission display cell device having opening depth defined by etch stop
    • 具有由蚀刻停止限定的开口深度的电子场致发射显示单元装置
    • US06169357A
    • 2001-01-02
    • US08901505
    • 1997-07-28
    • Michael D Potter
    • Michael D Potter
    • H01J162
    • C09K11/682C09K11/672C09K11/693C09K11/7702C09K11/7708H01J9/227
    • An electron field-emission display comprises one or more display cell structures, each having a field-emission cathode and an anode comprising at least one of several cathodoluminescent phosphors disclosed. The display cell structures may also have one or more gate elements for controlling electron current flowing from cathode to anode when suitable electrical bias voltages are applied. A cell may have more than one phosphor, and in particular may have red, green, and blue phosphors selectively arranged. Each pixel site may have one anode of each color phosphor. The phosphors are preferably prepared in situ in an electrically-conductive thin-film or surface-layer form during fabrication of the display. A preferred fabrication process integrates an etch stop with the in situ phosphor process, the etch stop precisely defining the depth of an opening in the display cell structure. Metal oxides or mixed-metal oxides of zinc, copper, tin, or indium are heated in the presence of a refractory metal such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, or combinations thereof to make phosphors of various chromaticities, which may also include dopants, such as a lanthanide rare earth element, manganese, chromium, or stoichiometrically excess zinc, copper, tin, or indium. The display is operable when its phosphor is excited by electrons of very low energy.
    • 电子场发射显示器包括一个或多个显示单元结构,每个显示单元结构具有场致发射阴极和包含公开的多个阴极发光荧光体中的至少一个的阳极。 当施加适当的电偏压时,显示单元结构还可以具有一个或多个栅极元件,用于控制从阴极流向阳极的电子电流。 单元可以具有多于一个的磷光体,并且特别地可以具有选择性地布置的红色,绿色和蓝色磷光体。 每个像素位置可以具有每个彩色荧光体的一个阳极。 荧光体优选在制造显示器期间以导电薄膜或表面层形式原位制备。 优选的制造工艺将蚀刻停止与原位磷光体处理集成,蚀刻停止精确地限定显示单元结构中的开口的深度。 金属氧化物或锌,铜,锡或铟的混合金属氧化物在难熔金属如钛,锆,铪,钒,铌,钽,铬,钼,钨或其组合的存在下加热, 各种色度的荧光体,其还可以包括掺杂剂,例如镧系元素稀土元素,锰,铬或化学计量过量的锌,铜,锡或铟。 当其荧光体被非常低能量的电子激发时,显示器是可操作的。
    • 6. 发明授权
    • Oxide based phosphors and processes therefor
    • 基于氧化物的荧光体及其工艺
    • US6071633A
    • 2000-06-06
    • US901403
    • 1997-07-28
    • Michael D Potter
    • Michael D Potter
    • C09K11/67C09K11/68C09K11/69C09K11/77H01J9/227B32B5/16C09K11/08
    • C09K11/7702C09K11/672C09K11/682C09K11/693C09K11/7708H01J9/227
    • A phosphor comprises, in atomic percentages, 90% to 100% of a mixed metal oxide MxTyOz, wherein M is a metal selected from Zn, Sn, In, Cu, and combinations thereof, T is a refractory metal selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and combinations thereof, and O is Oxygen, x, y, and z being chosen such that z is at most stoichiometric for MxTyOz; and 0% to 10% of a dopant comprising a substance selected from a rare earth element of the lanthanide series, Mn, Cr, and combinations thereof, or stoichiometrically excess zinc, copper, tin, or indium. Cathodoluminescent phosphor compositions stimulable by electrons of very low energy are prepared from metal oxides treated with refractory metals in various processes disclosed. Metal oxides or mixed-metal oxides of zinc, copper, tin, or indium are heated in the presence of a refractory metal such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, or combinations or alloys thereof to make phosphors of various chromaticities. In a simple embodiment, a quantity of Ta.sub.2 O.sub.5 is added to a quantity of ZnO and heated at an effective temperature and time to form Ta.sub.2 Zn.sub.3 O,, which is useful in various forms as a blue-light-emitting phosphor. In preferred embodiments, the phosphors are prepared in situ in an electrically-conductive thin-film or surface-layer form during fabrication of displays.
    • 磷光体以原子百分比包含90%至100%的混合金属氧化物M x T y O z,其中M是选自Zn,Sn,In,Cu及其组合的金属,T是选自Ti,Zr, Hf,V,Nb,Ta,Cr,Mo,W及其组合,O是氧,x,y和z,使得z对于M x T y O z为至多化学计量; 以及含有选自镧系元素稀土元素,Mn,Cr及其组合的化合物或化学计量过量的锌,铜,锡或铟的物质的0〜10%的掺杂剂。 由非常低能量的电子刺激的阴极发光荧光体组合物由公开的各种方法由用难熔金属处理的金属氧化物制备。 锌,铜,锡或铟的金属氧化物或混合金属氧化物在钛,锆,铪,钒,铌,钽,铬,钼,钨等难熔金属的存在下被加热,或其组合或合金 以制造各种色度的荧光体。 在一个简单的实施例中,将一定数量的Ta 2 O 5添加到一定量的ZnO中并在有效温度和时间加热以形成Ta 2 Zn 3 O 3,其可用作各种形式作为蓝色发光荧光体。 在优选的实施方案中,在制造显示器期间,以导电薄膜或表面层形式原位制备荧光体。
    • 9. 发明授权
    • Processes for oxide based phosphors
    • 氧化物基磷光体的工艺
    • US5965192A
    • 1999-10-12
    • US901701
    • 1997-07-28
    • Michael D. Potter
    • Michael D. Potter
    • C09K11/67C09K11/68C09K11/69C09K11/77H01J9/227B05D5/06
    • H01J9/227C09K11/672C09K11/682C09K11/693C09K11/7702C09K11/7708
    • A phosphor comprises, in atomic percentages, 90% to 100% of a mixed metal oxide MxTyOz, wherein M is a metal selected from Zn, Sn, In, Cu, and combinations thereof, T is a refractory metal selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and combinations thereof, and O is Oxygen, x, y, and z being chosen such that z is at most stoichiometric for MxTyOz; and 0% to 10% of a dopant comprising a substance selected from a rare earth element of the lanthanide series, Mn, Cr, and combinations thereof, or stoichiometrically excess zinc, copper, tin, or indium. Cathodoluminescent phosphor compositions stimulable by electrons of very low energy are prepared from metal oxides treated with refractory metals in various processes disclosed. Metal oxides or mixed-metal oxides of zinc, copper, tin, or indium are heated in the presence of a refractory metal such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, or combinations or alloys thereof to make phosphors of various chromaticities. In a simple embodiment, a quantity of Ta.sub.2 O.sub.5 is added to a quantity of ZnO and heated at an effective temperature and time to form Ta.sub.2 Zn.sub.3 O.sub.8, which is useful in various forms as a blue-light-emitting phosphor. In preferred embodiments, the phosphors are prepared in situ in an electrically-conductive thin-film or surface-layer form during fabrication of displays.
    • 磷光体以原子百分比包含90%至100%的混合金属氧化物M x T y O z,其中M是选自Zn,Sn,In,Cu及其组合的金属,T是选自Ti,Zr, Hf,V,Nb,Ta,Cr,Mo,W及其组合,O是氧,x,y和z,使得z对于M x T y O z为至多化学计量; 以及含有选自镧系元素稀土元素,Mn,Cr及其组合的化合物或化学计量过量的锌,铜,锡或铟的物质的0〜10%的掺杂剂。 由非常低能量的电子刺激的阴极发光荧光体组合物由公开的各种方法由用难熔金属处理的金属氧化物制备。 锌,铜,锡或铟的金属氧化物或混合金属氧化物在钛,锆,铪,钒,铌,钽,铬,钼,钨等难熔金属的存在下被加热,或其组合或合金 以制造各种色度的荧光体。 在一个简单的实施例中,将一定数量的Ta 2 O 5添加到一定量的ZnO中并在有效温度和时间加热以形成Ta 2 Zn 3 O 8,其可以以各种形式用作蓝色发光磷光体。 在优选的实施方案中,在制造显示器期间,以导电薄膜或表面层形式原位制备荧光体。