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    • 57. 发明授权
    • Image display apparatus having first and second regions with respective luminances
    • 图像显示装置具有具有相应亮度的第一和第二区域
    • US07741767B2
    • 2010-06-22
    • US11935898
    • 2007-11-06
    • Masahiro YokotaTsuyoshi OyaizuHiroaki Ibuki
    • Masahiro YokotaTsuyoshi OyaizuHiroaki Ibuki
    • H01J1/62H01J1/304
    • H01J31/127H01J29/28H01J2329/28
    • An image display apparatus including a rear plate and a face plate facing the rear plate; wherein the rear plate includes an electron-emitting device; and the face plate includes a light-emitting body for emitting light through irradiation of electrons from the electron-emitting device, and a metal back arranged between the electron-emitting device and the light-emitting body. The light-emitting body includes a first region in which a luminance with respect to a maximum value of a luminance in the light-emitting body is greater than or equal to 50% and a second region in which the luminance is less than 50%; and an arithmetic mean deviation of the profile (Ra) of the metal back in the second region is larger than the arithmetic mean deviation of the profile (Ra) of the metal back in the first region.
    • 一种图像显示装置,包括:后板和面板; 其中所述后板包括电子发射器件; 并且面板包括用于通过从电子发射器件照射电子来发射光的发光体和布置在电子发射器件和发光体之间的金属背。 发光体包括其中相对于发光体中的亮度的最大值的亮度大于或等于50%的第一区域和亮度小于50%的第二区域; 并且第二区域中的金属背的轮廓(Ra)的算术平均偏差大于第一区域中的金属背的轮廓(Ra)的算术平均偏差。