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公开(公告)号：EP1399526A1
公开(公告)日：2004-03-24
申请号：EP02729685.4
申请日：2002-05-07
CPC分类号： C09K11/7706 , C09K11/7721 , C09K11/7734 , H05B33/14 , Y10S428/917 , Y10T428/26
摘要： A thin film phosphor for an electroluminescent device, and the electroluminescent device. The phosphor comprises a compound of the formula Mgx Ca1-x Al2 S4:M, where the value of x is in the range 0
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2.发明公开Electroluminescent laminate with thick film dielectric 失效Elektrolumineszenter Verbundstoff mit Dickfilmdielektrikum
公开(公告)号：EP1182909A3
公开(公告)日：2003-09-03
申请号：EP01202627.4
申请日：1993-05-06
CPC分类号： H05B33/28 , H05B33/10 , H05B33/12 , H05B33/22 , H05B33/26 , Y10S117/904 , Y10S428/917 , Y10S438/94
摘要： An electroluminescent laminate is provided that comprises: a planar phosphor layer (22); a front and a rear planar electrode (14,24) on either side of the phosphor layer; a planar dielectric layer, which is preferably composed of a thick layer (18) and a thin layer (20), between the rear electrode and the phosphor layer, the dielectric layer being formed from sintered ceramic material such that the dielectric layer provides a dielectric strength S which is greater than about 1.0 X 106 V/m and a dielectric constant such that the ratio of the dielectric constant of the dielectric layer to that of the phosphor layer is greater than about 50:1, the dielectric layer having a thickness sufficient to prevent dielectric breakdown during operation as determined by the equation d2 = V/S, wherein d2 is the thickness of the dielectric layer and V is the maximum applied voltage, the dielectric layer forming a surface adjacent the phosphor layer which is sufficiently smooth that the phosphor layer illuminates generally uniformly at a given excitation voltage, and wherein the dielectric layer is either in contact with the phosphor layer or spaced apart from it by at least one additional layer that is itself in contact with the phosphor layer and wherein the layer that is in contact with the phosphor layer is compatible with the phosphor layer.
摘要翻译： 提供了一种电致发光层压板，其包括：平面荧光体层（22）; 在荧光体层的任一侧上的前平面电极和后平面电极（14,24）; 在后电极和荧光体层之间优选由厚层（18）和薄层（20）组成的平面介质层，介电层由烧结陶瓷材料形成，使得介电层提供电介质 强度S大于约1.0×10 6 V / m 2，介电常数与介电层的介电常数与荧光体层的介电常数之比大于约50:1，介电层的厚度足够 以防止在操作期间的电介质击穿由等式d2 = V / S确定，其中d2是电介质层的厚度，V是最大施加电压，电介质层形成邻近磷光体层的表面，其足够光滑，使得 荧光体层在给定的激发电压下大致均匀地照明，并且其中介电层与荧光体层接触或者与其间隔开l 东一个附加层，其本身与磷光体层接触，并且其中与磷光体层接触的层与荧光体层相容。
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3.发明公开ENERGY EFFICIENT RESONANT SWITCHING ELECTROLUMINESCENT DISPLAY DRIVER 有权高效节能，围巾投标共振ELEKTROLUMINESZENZANZEIGETREIBER
公开(公告)号：EP1256109A1
公开(公告)日：2002-11-13
申请号：EP01905538.3
申请日：2001-02-13
发明人： CHENG, Chun-Fai
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2330/023
摘要： A driving circuit for powering an electroluminescent display using energy recovered from a varying panel capacitance of the display. The driving circuit comprises a source of electrical energy; and a resonant circuit using the panel capacitance for receiving the electrical energy and in response generating a sinusoidal voltage to power the display at a resonance frequency which is substantially synchronized to a scanning frequency of the display. The resonant circuit uses a step down transformer to reduce the effective panel capacitance of the display in order to reduce its effect on the resonance frequency.
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4.发明授权METHOD AND APPARATUS OF OPERATING A DUAL GATE TFT ELECTROMAGNETIC RADIATION IMAGING DEVICE 失效方法和一种用于操作双栅TFT电磁辐射图像转换器
公开(公告)号：EP0842539B1
公开(公告)日：2001-09-12
申请号：EP95926347.6
申请日：1995-07-31
发明人： SINGH, Surendra, Pal
IPC分类号： H01L27/146
CPC分类号： H01L27/146
摘要： A method and apparatus of operating a dual gate TFT electromagnetic radiation imaging device wherein the electrical conditions on each pixel are compared after exposure to radiation and during measurement. The pixel charge electrode is preset to a predetermined voltage level prior to radiation exposure so that the pixel may be operated beyond its linear operating range.
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5.发明公开LOW FIRING TEMPERATURE THICK FILM DIELECTRIC LAYER FOR ELECTROLUMINESCENT DISPLAY 有权具有低燃油温度电致发光结构绝缘厚膜
公开(公告)号：EP1459601A1
公开(公告)日：2004-09-22
申请号：EP02784971.0
申请日：2002-12-16
发明人： LI, Wu , AHN, Sung-Il , YANG, Maizhi , WU, Xingwei , LEE, Seong-Eui , SEALE, Daniel J. , SMY, William M. , YUFENG, Ye , ZHANG, Hui
CPC分类号： C03C17/36 , C03C8/14 , C03C8/16 , C03C8/20 , C03C17/3671 , C03C2217/452 , C03C2217/475 , C03C2217/948 , H05B33/10 , H05B33/145 , H05B33/22 , Y10S428/917 , Y10T428/25 , Y10T428/265
摘要： The present invention is a low firing temperature, composite thick film dielectric layer for an electroluminescent display. The composite thick film dielectric layer comprises; (a) a lower zone layer of a thick film composition comprising; one or more of lead magnesium niobate (PMN), lead magnesium niobate-titanate (PMN-PT), lead titanate, barium titanate and lead oxide; and a glass frit composition comprising lead oxide, boron oxide and silicon dioxide; (b) an upper zone comprising at least one layer of lead zirconate titanate (PZT) and/or barium titanate; and (c) an intermediate composite zone comprising a composite of (a) and (b).
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公开(公告)号：EP1458901A2
公开(公告)日：2004-09-22
申请号：EP02784952.0
申请日：2002-12-10
CPC分类号： C23C14/0057 , C09K11/7706 , C23C14/0623 , C23C14/3464 , H05B33/14
摘要： The invention is a novel sputter deposition process for thin film phosphors that provide high luminance and colors required for TV applications. The method is a dual source sputtering method for the deposition of a thin film phosphor composition onto a substrate and comprises providing a metal as a first source; providing a sulfur bearing compound as a second source; doping the first or second source with a rare earth activator; and applying sufficient current to the first and second sources in a sulfur containing atmosphere to effect sputtering of the first and second targets and deposition of the phosphor composition onto the substrate.
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7.发明公开METHOD OF LASER ABLATION FOR PATTERNING THIN FILM LAYERS FOR ELECTROLUMINESCENT DISPLAYS 审中-公开激光消融结构的薄膜电致发光END SHOW
公开(公告)号：EP1455985A1
公开(公告)日：2004-09-15
申请号：EP02782582.7
申请日：2002-12-11
发明人： LOVELL, Dave , HUNT, Terry
CPC分类号： H01L51/0005 , B23K26/0006 , B23K26/38 , B23K26/40 , B23K2201/35 , B23K2203/172 , B23K2203/50 , B23K2203/52 , H05B33/10 , H05B33/12
摘要： The invention relates to a laser ablation method for patterning thin film layers for thick dielectric electroluminescent displays without substantial ablation of or damage to any other layers. Typically, the thin film layers are phosphor layers. The laser ablation method for patterning a thin film phosphor layer of a thick dielectric electroluminescent display comprises selecting a wavelength of laser radiation, a laser pulse length, a laser energy density and a sufficient number of laser pulses to pattern the thin film phosphor layer without substantial ablation of or damage to other layers, whereby the wavelength of laser radiation is such that the laser radiation is substantially absorbed by the thin film phosphor layer with minimal absorption by other layers, the laser pulse length is sufficiently short that during the duration of the laser pulse there is minimal heat flow from the thin film phosphor layer to other layers, and the laser energy density and the sufficient number of laser pulses is sufficiently high that energy is deposited in the thin film phosphor layer, whereby the entire thickness of at least a portion of the thin film phosphor layer is ablated.
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公开(公告)号：EP1392881A1
公开(公告)日：2004-03-03
申请号：EP02729684.7
申请日：2002-05-07
CPC分类号： C09K11/7731 , C23C14/0057 , C23C14/0623
摘要： A method of deposition of a phosphor in a single-source sputtering process, in which the phosphor is selected from the group consisting of ternary, quaternary or higher thioaluminate, thiogallate and thioindate phosphors, and composites thereof, synthesized with cations selected from Groups IIA and IIB of the Periodic Table of Elements. The phosphor is of a pre-determined composition of elements. The method comprising sputtering in a hydrogen sulphide atmosphere from a single source composition so as to deposit a composition on a substrate. The composition of the targets of the single source has a relative increase in concentration of elements of the phosphor that have a lower atomic weight compared to other elements in said phosphor. The relative increase is controlled such that deposition of the pre-determined composition is effected on the substrate. Preferred phosphors are barium thioaluminate (BaAl2S4:Eu), and barium magnesium thioaluminates.
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公开(公告)号：EP0843830B1
公开(公告)日：2002-12-04
申请号：EP95926353.4
申请日：1995-07-31
发明人： HUANG, Zhong, Shou
CPC分类号： H01L27/14609 , G01T1/241 , G01T1/244 , G01T1/2928 , H01L27/146 , H01L27/14676
摘要： A flat panel detector (20) for radiation imaging includes an array of pixels (22) arranged in rows and columns. Each of the pixels has a pixel electrode (36) to store a charge proportional to the exposure of the pixel to radiation. A radiation transducer (CSE) is disposed over the array and is to be exposed to incident radiation. A plurality of source lines (26) are provided with each source line interconnecting the pixels in individual ones of one of the rows or columns of the array. A plurality of gate lines (24) are also provided, each interconnecting the pixels in individual ones of the other of the rows or columns of the array. The source and gate lines cross one another to define a plurality of overlapping nodes. Shielding means shield the gate lines from the source lines at the overlapping nodes to reduce parasitic capacitance at the overlapping nodes. In one embodiment, the shielding means is in the form of a biased metal shielding plate (54) disposed between the gate and source lines adjacent the overlapping nodes. In another embodiment, the shielding means is in the form of a shielding pad (275) formed of semiconductor material disposed between the gate and source lines adjacent the overlapping nodes and connected to a biased metal conductor (277).
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公开(公告)号：EP0897597B1
公开(公告)日：2002-09-11
申请号：EP96913400.6
申请日：1996-05-08
发明人： HUANG, Zhong, Shou
IPC分类号： H01L27/146
CPC分类号： H01L27/14665 , H04N5/32 , H04N5/378
摘要： A high resolution flat panel for radiation imaging includes an array of pixels arranged in rows and columns. Gate lines interconnect the pixels of the rows while source lines interconnect the pixels of the columns. Gate driver circuits provide gate pulses to the gate lines in succession in response to input from a control circuit to select the pixels on a row-by-row basis. The source lines lead to charge amplifiers for sensing the signal charges stored by the pixels when the pixels are selected. At least one pair of adjacent pixels in each row of the array shares a source line. Gating of the pairs of pixels in the rows that share a source line is controlled by control logic to ensure that signal charges stored by only one of those pixels is applied to a shared source line at a time. This allows the number of charge amplifiers in the flat panel to be reduced while maintaining high resolution.
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