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    • 3. 发明申请
    • RADIATION FILTER ELEMENT AND MANUFACTURING PROCESSES THEREFORE
    • 辐射滤芯元件及其制造工艺
    • WO2003098351A1
    • 2003-11-27
    • PCT/US2003/016536
    • 2003-05-15
    • E.I. DU PONT DE NEMOURS AND COMPANYANDREWS, Gerald, D.CASPAR, Jonathan, V
    • ANDREWS, Gerald, D.CASPAR, Jonathan, V
    • G03F7/34
    • B41M5/42B41M5/265B41M5/38207B41M5/38257B41M5/385B41M5/395B41M5/44B41M5/465B41M7/0027G02B5/201G02F1/133516Y10S430/145
    • A process for making a radiation filter element comprises the steps of: exposing part of an assemblage to infrared radiation, the assemblage comprising a donor comprising (1) a support capable of transmitting infrared light, and (2) a transferable layer comprising a transferable material and an infrared-absorbing dye, the transferable layer of the donor being in contact with a receiver to provide an exposed assemblage comprising an exposed part of the transferable layer and an unexposed part of the transferable layer; separating the receiver and the support of the exposed assemblage to obtain an imaged receiver and a spent donor, wherein the imaged receiver comprises the receiver, a transferred portion of the transferable material and a transferred portion of the infrared-absorbing dye, said transferred portion of the IR dye having a color and the spent donor comprises the support and a retained portion of the transferable layer; and heating the transferred portion of the transferable material and the transferred portion of the infrared-absorbing dye at a temperature ranging from about 100 degrees Celsius to about 350 degrees Celsius for a period of time sufficient to thermally decolorize 50% to 100% of the transferred portion of the infrared-absorbing dye, the heating being in the absence of a thermal bleaching agent to provide a radiation filter element suitable for use in a liquid crystal display. Preferably color filter elements of this invention are used in liquid crystal display devices.
    • 制造辐射过滤元件的方法包括以下步骤:将组件的一部分暴露于红外辐射,所述组合件包括供体,所述供体包括(1)能够透射红外光的支撑体,和(2)包含可转移材料的可转移层 和红外线吸收染料,所述供体的可转移层与接收器接触以提供暴露的组合,其包括所述可转移层的暴露部分和所述可转移层的未曝光部分; 分离接收器和暴露的组合件的支撑件以获得成像的接收器和废弃的供体,其中成像的接收器包括接收器,可转移材料的转移部分和红外线吸收染料的转移部分,所述转移部分 具有颜色的IR染料和废弃的供体包括载体和可转移层的保留部分; 并将可转移材料的转移部分和红外线吸收染料的转移部分在约100摄氏度至约350摄氏度的温度范围内加热足够的时间以将50%至100%的转移 红外线吸收染料的一部分,加热不存在热漂白剂,以提供适用于液晶显示器的辐射过滤元件。 本发明的滤色器优选用于液晶显示装置。