公开(公告)号：US20040033307A1

公开(公告)日：2004-02-19

申请号：US10641231

申请日：2003-08-14

Applicant: IFIRE TECHNOLOGY, INC.

Inventor： Xingwei Wu ,  George A. Kupsky

IPC: B05D005/12 ,  B05D003/12

CPC classification number: H05B33/145 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22

Abstract: 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. The phosphor structure also includes one or more means associated with one or more of the first and second phosphor deposits, and which together with the first and second phosphor deposits, form the red, green and blue sub-pixel phosphor elements, for setting and equalizing the threshold voltages of the red, green and blue sub-pixel phosphor elements, and for setting the relative luminosities of the red, green and blue sub-pixel phosphor elements so that they bear set ratios to one another at each operating modulation voltage used to generate the desired luminosities for red, green and blue. 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. Also provided are combined substrate and dielectric layer components or EL laminates containing the pressed thick film dielectric layer, and methods of forming the pressed thick film dielectric layer. A process is also provided for synthesizing strontium sulfide phosphors by providing a source of high purity strontium carbonate in a dispersed form, heating the strontium carbonate in a reactor with gradual heating up to a maximum temperature in the range of 800 to 1200null C., contacting the heated strontium carbonate with a flow of sulfur vapours formed by heating elemental sulfur in the reactor to at least 300null C. in an inert atmosphere; and terminating the reaction by stopping the flow of sulfur at a point when sulfur dioxide or carbon dioxide in the reaction gas reaches an amount which correlates with an amount of oxygen in oxygen-containing strontium compounds in the reaction product which is in the range of 1 to 10 atomic percent.

公开(公告)号：US20020126074A1

公开(公告)日：2002-09-12

申请号：US09747464

申请日：2000-12-22

Applicant: iFire Technology Inc.

Inventor： Kirk Ouellette ,  Chung-Fai Cheng ,  Don Carkner ,  Eiric Johnstone ,  Xingwei Wu ,  James Stiles

IPC: G09G003/36

CPC classification number: G09G3/2003 ,  G09G3/20 ,  G09G3/30 ,  G09G2300/0452 ,  G09G2310/021 ,  G09G2310/0224 ,  G09G2330/021 ,  G09G2340/0457

Abstract: An electroluminescent display and driving method is provided wherein the rows of pixels are divided into sub-pixel sets and several different sets of sub-pixels are then addressed from within a larger superset of adjacent sub-pixels. The image data for the addressed sub-pixels is averaged with that for adjacent sub-pixels and is applied to the reduced number of larger sub-pixels in sequence. Consequently, for a given sequence of input frame data sets the time average over one frame for a portion of the sub-pixels at any location of the panel is substantially the same as that for a conventionally addressed sub-pixel in a prior art panel.

Abstract translation: 提供一种电致发光显示和驱动方法，其中像素行被划分成子像素组，然后从相邻子像素的较大超集内寻址若干不同组的子像素。 将寻址的子像素的图像数据与相邻子像素的图像数据进行平均，并将其顺序地应用于较小数量的较大子像素。 因此，对于给定的输入帧数据集的序列，在面板的任何位置处的子像素的一部分的一帧的时间平均基本上与现有技术面板中常规寻址的子像素的时间平均相同。

公开(公告)号：US20040033752A1

公开(公告)日：2004-02-19

申请号：US10640725

申请日：2003-08-14

Applicant: IFIRE TECHNOLOGY, INC.

Inventor： Xingwei Wu ,  Daniel Joseph Seale ,  Donald Edward Carkner ,  Michael Roger Westcott ,  David Robin Lovell

IPC: H01J009/00

CPC classification number: H05B33/145 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22

Abstract: 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. The phosphor structure also includes one or more means associated with one or more of the first and second phosphor deposits, and which together with the first and second phosphor deposits, form the red, green and blue sub-pixel phosphor elements, for setting and equalizing the threshold voltages of the red, green and blue sub-pixel phosphor elements, and for setting the relative luminosities of the red, green and blue sub-pixel phosphor elements so that they bear set ratios to one another at each operating modulation voltage used to generate the desired luminosities for red, green and blue. 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. Also provided are combined substrate and dielectric layer components or EL laminates containing the pressed thick film dielectric layer, and methods of forming the pressed thick film dielectric layer. A process is also provided for synthesizing strontium sulfide phosphors by providing a source of high purity strontium carbonate in a dispersed form, heating the strontium carbonate in a reactor with gradual heating up to a maximum temperature in the range of 800 to 1200null C., contacting the heated strontium carbonate with a flow of sulfur vapours formed by heating elemental sulfur in the reactor to at least 300null C. in an inert atmosphere; and terminating the reaction by stopping the flow of sulfur at a point when sulfur dioxide or carbon dioxide in the reaction gas reaches an amount which correlates with an amount of oxygen in oxygen-containing strontium compounds in the reaction product which is in the range of 1 to 10 atomic percent.

公开(公告)号：US20040032208A1

公开(公告)日：2004-02-19

申请号：US10640789

申请日：2003-08-14

Applicant: IFIRE TECHNOLOGY, INC.

Inventor： Xingwei Wu ,  George A. Kupsky

IPC: H01J001/62

CPC classification number: H05B33/145 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22

Abstract: 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. The phosphor structure also includes one or more means associated with one or more of the first and second phosphor deposits, and which together with the first and second phosphor deposits, form the red, green and blue sub-pixel phosphor elements, for setting and equalizing the threshold voltages of the red, green and blue sub-pixel phosphor elements, and for setting the relative luminosities of the red, green and blue sub-pixel phosphor elements so that they bear set ratios to one another at each operating modulation voltage used to generate the desired luminosities for red, green and blue. 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. Also provided are combined substrate and dielectric layer components or EL laminates containing the pressed thick film dielectric layer, and methods of forming the pressed thick film dielectric layer. A process is also provided for synthesizing strontium sulfide phosphors by providing a source of high purity strontium carbonate in a dispersed form, heating the strontium carbonate in a reactor with gradual heating up to a maximum temperature in the range of 800 to 1200null C., contacting the heated strontium carbonate with a flow of sulfur vapours formed by heating elemental sulfur in the reactor to at least 300null C. in an inert atmosphere; and terminating the reaction by stopping the flow of sulfur at a point when sulfur dioxide or carbon dioxide in the reaction gas reaches an amount which correlates with an amount of oxygen in oxygen-containing strontium compounds in the reaction product which is in the range of 1 to 10 atomic percent.