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    • 3. 发明授权
    • Light modulating device including a liquid crystal, a polymer and
dichroic dyes having maximum absorption in the different wavelength
regions
    • 光调制装置包括在不同波长区域具有最大吸收的液晶,聚合物和二色性染料
    • US5280373A
    • 1994-01-18
    • US917940
    • 1992-07-24
    • Tetsuo OzawaNoriyuki Okabe
    • Tetsuo OzawaNoriyuki Okabe
    • G02F1/1334G02F1/133
    • G02F1/1334G02F2202/043
    • A light modulating device comprising a pair of electrode substrates having supported therebetween an electrically light modulating material containing a liquid crystal and a polymer, in which said light modulating material further contains (1) a combination of a dichroic dye having a maximum absorption in the wavelength region of from 400 to 489 nm, a dichroic dye having a maximum absorption in the wavelength region of from 490 to 559 nm, and a dichroic dye having a maximum absorption in the wavelength region of from 560 to 699 nm and/or (2) a near infrared- to infrared-absorbing dichroic dye having a maximum absorption in the wavelength region of 700 nm or more. The light modulating device exhibits high performance in controlling transmission of visible to infrared light and a high contrast between "on" and "off" states.
    • 一种光调制装置,包括一对电极基板,其上支撑有包含液晶的电光调制材料和聚合物,其中所述光调制材料还包含(1)具有波长最大吸收的二色性染料的组合 400至489nm的区域,在490至559nm的波长区域具有最大吸收的二色性染料和在560至699nm的波长区域具有最大吸收的二色性染料和/或(2) 在700nm以上的波长区域具有最大吸收的近红外至红外线吸收二色性染料。 光调制装置在控制可见光与红外光的透射和“开”和“关”状态之间的高对比度方面表现出高性能。