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    • 5. 发明授权
    • Bi-axial retardation compensation film and vertically aligned liquid crystal display using the same
    • 双轴向延迟补偿膜和使用其的垂直取向液晶显示器
    • US08237898B2
    • 2012-08-07
    • US12840172
    • 2010-07-20
    • Byoung-kun JeonSergey BelyaevJeong-su Yu
    • Byoung-kun JeonSergey BelyaevJeong-su Yu
    • G02F1/1335
    • G02F1/133634G02F1/1393G02F2001/133637
    • The present invention relates to a vertically aligned LCD (VA-LCD) employing a bi-axial retardation compensation film, in which an in-plain refractive index (nx, ny) and a thickness refractive index (nz) of the film is nx>ny>nz. The film has a reversed wavelength dispersion in which retardation is increased in proportion to the increase of a wavelength in the range of visible rays and has a normal wavelength dispersion in which an absolute value of the thickness retardation is decreased in proportion to the increase of a wavelength in the range of visible rays. The VA-LCD cell having a retardation compensation characteristic is comprised by arranging a bi-axial retardation compensation film between the vertically aligned panel and a upper and lower polarizing plate. The VA-LCD of the present invention improves contrast characteristics on a front surface and at a tilt angle and minimizes coloring in a black state according to the tilt angle.
    • 本发明涉及采用双轴延迟补偿膜的垂直排列的LCD(VA-LCD),其中膜的平均折射率(nx,ny)和厚度折射率(nz)为nx> ny> nz 该膜具有反向波长色散,其中延迟与可见光范围内的波长的增加成比例地增加,并且具有正常的波长色散,其中厚度延迟的绝对值与a的增加成正比 在可见光范围内的波长。 具有延迟补偿特性的VA-LCD单元通过在垂直排列的面板和上下偏振片之间布置双轴向延迟补偿膜来实现。 本发明的VA-LCD改善了前表面和倾斜角的对比度特性,并根据倾斜角使黑色状态下的着色最小化。
    • 10. 发明授权
    • In-plane switching liquid crystal display having simple structure
    • 面内切换液晶显示器结构简单
    • US07511792B2
    • 2009-03-31
    • US11493025
    • 2006-07-26
    • Jun Won ChangByoung Kun JeonSoo Jin Jang
    • Jun Won ChangByoung Kun JeonSoo Jin Jang
    • G02F1/1343
    • G02F1/134363G02F1/13363G02F2001/133635G02F2413/03
    • An IPS-LCD, in which the direction of an optical axis and retardation values are adjusted according to the disposition of a phase retardation film replacing one protective film, obtains a contrast ratio similar to that of an IPS-LCD having upper and lower protective films, and has a small thickness. The IPS-LCD includes first and second polarizing plates (1, 2), an IPS panel (3), and a first protective film. Absorption axes (4, 5) of the first and second polarizing plates (1, 2) are orthogonal to each other, and an optical axis of a liquid crystal in the IPS panel (3) and the absorption axis (4) are parallel with each other. A second phase retardation film, obtained by coating a biaxial film (17) with a uniaxial C film (11), is disposed between the second polarizing plate (2) and the IPS panel (3) and is used as a second protective film.
    • 根据更换一个保护膜的相位延迟膜的配置来调整光轴方向和延迟值的IPS-LCD获得与具有上保护膜和下保护膜的IPS-LCD类似的对比度 ,厚度小。 IPS-LCD包括第一和第二偏振片(1,2),IPS面板(3)和第一保护膜。 第一和第二偏振板(1,2)的吸收轴(4,5)彼此正交,并且IPS面板(3)和吸收轴(4)中的液晶的光轴与 彼此。 通过用单轴C膜(11)涂布双轴膜(17)而获得的第二相位延迟膜设置在第二偏振片(2)和IPS面板(3)之间,并用作第二保护膜。