公开(公告)号：US20140210874A1

公开(公告)日：2014-07-31

申请号：US14071169

申请日：2013-11-04

申请人： CHUN-FAI CHENG

发明人： CHUN-FAI CHENG

IPC分类号： G09G3/32

CPC分类号： G09G3/32 ,  G09G3/30 ,  G09G3/3614 ,  G09G2310/0259 ,  G09G2310/027 ,  G09G2320/0276

摘要： A circuit and method of driving a display panel requiring gray scale control wherein the voltage applied to a row of pixels is equal to the sum of voltages of opposite sign with respect to ground applied respectively to the row electrode and column electrodes whose intersection with the row defines the pixels. Gray scale is realized through modulation of the voltage applied to the column electrodes. Typically for video application, 256 individual gray levels are required corresponding to luminance levels ranging from zero (no emissive luminance) to full luminance. The required luminance for each gray level is not a linear function of the gray level number but rather corresponds to an approximate quadratic function of this number. The present invention facilitates generation of luminance values for each gray level that approximates this functional dependence (i.e. Gamma corrected) with a non-linear voltage ramp terminated by a digital clock having 256 (8 bit) resolution. The voltage at the ramp termination is held at a constant value and fed to the output buffer of the gray scale drivers for the display columns.

摘要翻译： 驱动需要灰度控制的显示面板的电路和方法，其中施加到一行像素的电压等于分别施加到相对于地面的相对符号的电压之和，与行电极和列电极的与行的交点相加 定义像素。 通过调制施加到列电极的​​电压来实现灰度级。 通常对于视频应用，需要对应于从零（无发光亮度）到全亮度的亮度级别需要256个单独的灰度级。 每个灰度级的所需亮度不是灰度级数的线性函数，而是对应于该数的近似二次函数。 本发明有助于以由具有256（8位）分辨率的数字时钟终止的非线性电压斜坡来生成近似该功能依赖性（即，伽马校正）的每个灰度级的亮度值。 斜坡端接电压保持恒定值，并送到显示列的灰度级驱动器的输出缓冲器。

公开(公告)号：US08456082B2

公开(公告)日：2013-06-04

申请号：US12325883

申请日：2008-12-01

申请人： James Alexander Robert Stiles ,  Hiroki Hamada ,  Isao Yoshida

发明人： James Alexander Robert Stiles ,  Hiroki Hamada ,  Isao Yoshida

IPC分类号： H01J1/62

CPC分类号： C09K11/7734 ,  C09K11/7721 ,  H05B33/14

摘要： An extended area uniform light source providing uniform luminance is taught for displays and other applications where the light emission can be planar or have curvature. The uniform light source is achieved using a combination of a blue light-emitting electroluminescent layer and a highly stable inorganic photoluminescent color conversion layer to tailor the color spectrum of the emitted light. The invention thus encompasses the uniform light source, displays incorporating the uniform light sources as well of methods of making such light sources and displays.

摘要翻译： 针对显示器和发光可以是平面的或具有曲率的其他应用，教导了提供均匀亮度的扩展区域均匀光源。 使用蓝色发光电致发光层和高度稳定的无机光致发光颜色转换层的组合来实现均匀光源，以调整发射光的色谱。 因此，本发明包括均匀的光源，包含均匀光源的显示器以及制造这种光源和显示器的方法。

公开(公告)号：US07989088B2

公开(公告)日：2011-08-02

申请号：US10736368

申请日：2003-12-15

申请人： Hiroki Hamada ,  Isao Yoshida ,  Daniel J. Seale ,  Hui Zhang ,  Yang Maizhi ,  Ye Yufeng ,  Li Wu ,  M. Smy William

发明人： Hiroki Hamada ,  Isao Yoshida ,  Daniel J. Seale ,  Hui Zhang ,  Yang Maizhi ,  Ye Yufeng ,  Li Wu ,  M. Smy William

IPC分类号： H01J1/62 ,  B05D5/06 ,  G11B11/105

CPC分类号： B32B7/02 ,  C09K11/7745 ,  H05B33/10 ,  H05B33/14 ,  H05B33/22 ,  Y10S428/917 ,  Y10T428/26

摘要： A novel sub-structure of a thick film dielectric electroluminescent display and a thick film dielectric electroluminescent display incorporating the same is provided. The sub-structure comprises a barrier layer between a substrate and a thick film dielectric layer. The barrier layer is chemically inert with respect to the substrate and the thick film dielectric layer and the barrier layer inhibits diffusion of at least one chemical species therethrough. This sub-structure results in a higher capacitance for the thick dielectric layer, which provides higher display luminance and a reduced tendency for dielectric breakdown of the thick dielectric layer. The barrier layer permits for lower cost substrates, such as glass, to be used.

摘要翻译： 提供了一种新颖的厚膜电介质电致发光显示器的子结构和包含其的厚膜电介质电致发光显示器。 子结构包括在衬底和厚膜电介质层之间的阻挡层。 阻挡层相对于基底是化学惰性的，并且厚膜介电层和阻挡层抑制至少一种化学物质的扩散。 该子结构导致较厚的电介质层的较高的电容，这提供了较高的显示亮度和降低的介电层的电介质击穿趋势。 阻挡层允许使用较低成本的基底，例如玻璃。

公开(公告)号：US07586256B2

公开(公告)日：2009-09-08

申请号：US10640789

申请日：2003-08-14

申请人： Xingwei Wu ,  George A. Kupsky

发明人： Xingwei Wu ,  George A. Kupsky

IPC分类号： B05D5/12 ,  H05B33/04 ,  H05B33/10

CPC分类号： H05B33/145 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22

摘要： A patterned phosphor structure, and EL laminate containing same, forming red, green, and blue sub-pixel phosphor elements for an AC electroluminescent display. The patterned phosphor structure includes at least a first and a second phosphor emitting light in different ranges of the visible spectrum, but with combined emission spectra contains red, green, and blue light, the first and second phosphors being in a layer, arranged in adjacent, repeating relationship to each other to provide a plurality of repeating first and second phosphor deposits. Photolithographic methods for producing the patterned phosphor structure are also provided. Also provided is an improved dielectric layer for use in an EL laminate, including a pressed, sintered ceramic material having, compared to an unpressed, sintered dielectric layer of the same composition, improved dielectric strength, reduced porosity and uniform luminosity in an EL laminate.

摘要翻译： 图案化的荧光体结构和含有它们的EL层压体，形成用于AC电致发光显示器的红色，绿色和蓝色子像素磷光体元件。 图案化磷光体结构包括至少第一和第二荧光体，其在可见光谱的不同范围内发射光，但是组合的发射光谱包含红色，绿色和蓝色光，第一和第二荧光体位于相邻的层中 重复相互关系以提供多个重复的第一和第二荧光体沉积物。 还提供了用于生产图案化磷光体结构的光刻方法。 还提供了一种用于EL层压体的改进的介电层，其包括压制烧结陶瓷材料，其与相同组成的未压制的烧结介电层相比，EL层压板中的介电强度提高，孔隙率降低和发光度均匀。

公开(公告)号：US07442446B2

公开(公告)日：2008-10-28

申请号：US10736020

申请日：2003-12-15

申请人： Guo Liu

发明人： Guo Liu

IPC分类号： H01J1/62

CPC分类号： C09K11/02 ,  C09K11/574 ,  C09K11/7702 ,  C09K11/7703 ,  C09K11/7706 ,  C09K11/7718 ,  C09K11/7721 ,  C09K11/773 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7745 ,  C09K11/883 ,  C09K11/886 ,  H05B33/10 ,  H05B33/14 ,  H05B33/22 ,  Y10S428/917 ,  Y10T428/26

摘要： A novel structure is provided to improve the luminance and operating stability of phosphors used in ac thick film dielectric electroluminescent displays. The novel structure comprises aluminum nitride barrier layers in contact with the phosphor films to prevent phosphor degradation due to reaction with oxygen. The barrier layers can be deposited using vacuum deposition processes that are compatible with the processes used to deposit and anneal the phosphor films. The invention is particularly applicable to phosphors used in electroluminescent displays that employ thick dielectric layers subject to high processing temperatures to form and activate the phosphor films.

摘要翻译： 提供了一种新颖的结构来提高在ac厚膜电介质电致发光显示器中使用的荧光体的亮度和操作稳定性。 该新型结构包括与荧光膜接触的氮化铝阻挡层，以防止由于与氧反应引起的磷光体劣化。 可以使用与用于沉积和退火荧光膜的方法相容的真空沉积工艺来沉积阻挡层。 本发明特别适用于采用在高处理温度下形成和激活荧光膜的厚电介质层的电致发光显示器中使用的荧光体。

公开(公告)号：US08159128B2

公开(公告)日：2012-04-17

申请号：US11773140

申请日：2007-07-03

申请人： Manuela Peter

发明人： Manuela Peter

IPC分类号： H01J1/62 ,  H01J63/04

CPC分类号： H05B33/04 ,  H05B33/10 ,  Y10T428/26 ,  Y10T428/28 ,  Y10T428/2878 ,  Y10T428/2887 ,  Y10T428/2891

摘要： The invention is a sealed thick film dielectric display where the display comprises a thick film dielectric display structure and an adhesive layer provided over the display structure. The invention also provides a seal where the seal comprises an adhesive layer bonded to the underside of a cover plate and to the surface of a thick film dielectric electroluminescent display. The seal substantially inhibits the exposure of display components to atmospheric contaminants.

摘要翻译： 本发明是密封的厚膜电介质显示器，其中显示器包括厚膜电介质显示结构和设置在显示结构上的粘合层。 本发明还提供了一种密封件，其中密封件包括粘合到盖板的下侧的粘合剂层和厚膜电介质电致发光显示器的表面。 密封件基本上禁止显示部件暴露于大气污染物。

公开(公告)号：US07915803B2

公开(公告)日：2011-03-29

申请号：US12109564

申请日：2008-04-25

申请人： Hiroki Hamada ,  Isao Yoshida ,  Vincent Joseph Alfred Pugliese ,  Manuela Peter ,  James Alexander Robert Stiles

发明人： Hiroki Hamada ,  Isao Yoshida ,  Vincent Joseph Alfred Pugliese ,  Manuela Peter ,  James Alexander Robert Stiles

IPC分类号： H01J1/62 ,  H01J63/04 ,  B32B15/00

CPC分类号： H01B3/10 ,  C09K11/7734 ,  H01B3/004 ,  H05B33/22 ,  Y10T428/265

摘要： A novel and improved composite thick film dielectric structure is provided to improve the operating stability of phosphors used in thick dielectric ac electroluminescent displays. The novel structure comprises one or more aluminum oxide layers disposed between the composite thick dielectric layer and the bottom of the phosphor layer of these displays.

摘要翻译： 提供了一种新型改进的复合厚膜电介质结构，以改善在厚介电ac电致发光显示器中使用的荧光体的操作稳定性。 该新型结构包括一个或多个设置在复合厚介电层和这些显示器的荧光体层底部之间的氧化铝层。

公开(公告)号：US07675489B2

公开(公告)日：2010-03-09

申请号：US11338013

申请日：2006-01-24

申请人： Chun-Fai Cheng

发明人： Chun-Fai Cheng

IPC分类号： G09G3/30

CPC分类号： G09G3/3611 ,  G09G3/30 ,  G09G3/3614 ,  G09G3/3622 ,  G09G2310/0248 ,  G09G2310/0254 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/023 ,  G09G2330/024 ,  G09G2330/028

摘要： A driving circuit for driving a display panel having pixels arranged in rows and columns, wherein the driving circuit incorporates a resonant circuit that is able to efficiently recover capacitive energy stored on the row of pixels and transfer it to another row of pixels as the rows are addressed by the sequential application of a voltage on each row. The resonant circuit comprises a step down transformer, a capacitor across the primary winding, either the rows or columns of the display panel connected across the secondary winding and an input voltage and FET switches to drive the resonant circuit synchronous with the timing pulses governing the addressing of the display. The value of the capacitor connected across the transformer primary winding is chosen commensurate with the turns ratio on the transformer and the anticipated range of panel capacitance values to effectively limit variations in the resonance frequency with respect to the frequency of the timing pulses. The present invention is an improvement to the resonant driving circuit that employs column drivers that maximize energy recovery in the resonant circuit by employing a means to restrict current flowing through the FETs used to control the column voltage so that substantially all of the current that flows when charge is being removed from the display pixels during the time period between selection of active rows is constrained to flow back through the transformer to charge the primary capacitor.

摘要翻译： 一种驱动电路，用于驱动具有排列成行和列的像素的显示面板，其中驱动电路包括谐振电路，该谐振电路能够有效地恢复存储在像素行上的电容性能量，并将其传送到另一行像素，因为行是 通过在每行上顺序施加电压来寻址。 谐振电路包括降压变压器，跨初级绕组的电容器，连接在次级绕组上的显示面板的行或列以及输入电压和FET开关，以驱动谐振电路与控制寻址的定时脉冲同步 的显示。 连接在变压器初级绕组上的电容器的值被选择为与变压器的匝数比和面板电容值的预期范围相当，以有效地限制谐振频率相对于定时脉冲的频率的变化。 本发明是采用列驱动器的谐振驱动电路的改进，所述列驱动器通过采用一种装置来限制谐振电路中的能量回收最大化，该电流限制流过用于控制列电压的FET的电流，使得基本上全部流过 在选择有效行之间的时间段期间，从显示像素中去除电荷被限制为流过变压器以对初级电容器充电。

公开(公告)号：US07597969B2

公开(公告)日：2009-10-06

申请号：US11432453

申请日：2006-05-11

申请人： James Alexander Robert Stiles ,  John Wesley Moore ,  Vincent Joseph Alfred Pugliese ,  Hiroki Hamada ,  Isao Yoshida

发明人： James Alexander Robert Stiles ,  John Wesley Moore ,  Vincent Joseph Alfred Pugliese ,  Hiroki Hamada ,  Isao Yoshida

IPC分类号： H01L51/54 ,  C09K11/77

CPC分类号： C09K11/7706 ,  C09K11/7703 ,  C09K11/7731 ,  C09K11/7734 ,  H05B33/10 ,  H05B33/12 ,  H05B33/14 ,  H05B33/22 ,  H05B33/26 ,  Y10S428/917

摘要： A thin film phosphor for an electroluminescent device, the phosphor being selected from the group consisting of thioaluminates, thiogallates and thioindates having at least one cation selected from elements of Groups IIA and IIB of the Periodic Table of Elements. The phosphor being activated by a rare earth metal and containing oxygen as a partial substitute for a portion of the sulphur in the crystal lattice of the thiogallate, thioindate or thioaluminate. The phosphor is a single phase homogeneous compound and provides improved luminance stability. An electroluminescent device comprising the thin film phosphor is also described and methods of making the phosphor of the invention.

摘要翻译： 一种用于电致发光器件的薄膜荧光体，所述荧光体选自具有至少一种选自元素周期表IIA和IIB族元素的至少一种阳离子的硫铝酸盐，硫代镓酸盐和硫茚酸盐。 荧光体被稀土金属活化并含有氧作为硫代镓酸盐，硫酸盐或硫代铝酸盐的晶格中部分硫的部分替代物。 荧光体是单相均质化合物，并提供改善的亮度稳定性。 还描述了包含薄膜荧光体的电致发光器件以及制造本发明的荧光体的方法。

公开(公告)号：US07595585B2

公开(公告)日：2009-09-29

申请号：US11604137

申请日：2006-11-24

申请人： Abdul M. Nakua ,  Xingwei Wu ,  Maizhi Yang ,  Dan Daeweon Cheong ,  John Wesley Moore

发明人： Abdul M. Nakua ,  Xingwei Wu ,  Maizhi Yang ,  Dan Daeweon Cheong ,  John Wesley Moore

IPC分类号： H01L51/50 ,  H05B33/00 ,  H01L51/56

CPC分类号： H01L27/322 ,  H01L27/3218 ,  H01L51/0089 ,  H05B33/145 ,  H05B33/22

摘要： A pixel sub-structure for an electroluminescent display and a method for making the same. The sub-structure comprising: a color conversion layer; and an optical enhancement layer; wherein at least a portion of the color conversion layer is integrated with at least a portion of the optical enhancement layer.

摘要翻译： 一种用于电致发光显示器的像素子结构及其制造方法。 子结构包括：颜色转换层; 和光学增强层; 其中所述颜色转换层的至少一部分与所述光学增强层的至少一部分成一体。