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    • 5. 发明授权
    • Liquid crystal display
    • 液晶显示器
    • US5725915A
    • 1998-03-10
    • US532957
    • 1995-09-21
    • Yoshihiko IshitakaMitsuru Kano
    • Yoshihiko IshitakaMitsuru Kano
    • G02F1/1335G02F1/1337
    • G02F1/133516G02F1/133528G02F1/133711G02F1/13378G02F2202/023Y10T428/1041Y10T428/1055
    • A liquid crystal display having heat resistance, a sufficiently large pretilt angle, and capable of preventing generation of domains and improving the reliability thereof is disclosed. Each alignment layer has, on the surfaces thereof, roof-like concave and convex rows, formed by repeatedly, in a first direction, forming convex portions each consisting of a longer side portion and a shorter side portion, and valley-like concave and convex rows having the height that is lower than that of the roof-like concave and convex rows and formed in the same direction as that of the roof-like concave and convex rows in such a manner that the roof-like concave and convex rows and the valley-like concave and convex rows are adjacently and alternately formed. Thus, concaves and convexes having a unit length of repetition, that is shorter than a unit length of repetition of the concaves and convexes formed in the first direction, are formed in a second direction that is substantially perpendicular to the first direction. Furthermore, the alignment layer is made of a compound having main chains, that are stable with respect to UV light, and side chains, each of which has an aliphatic ringing group to which aromatic groups are bonded, and which cross-link between the main chains, wherein the aromatic groups are aligned substantially in the first direction.
    • 公开了一种具有耐热性,足够大的预倾斜角度并且能够防止产生畴并提高其可靠性的液晶显示器。 每个取向层在其表面上具有在第一方向上重复地形成各自由较长侧部和较短侧部构成的凸部的顶部状的凹凸列,以及谷状凹凸 具有比屋顶状的凹凸列的高度低的列,并且以与屋顶状的凹凸列相同的方向形成,使得屋顶状的凹凸列和 谷状凹凸列相邻并交替地形成。 因此,在与第一方向基本垂直的第二方向上形成具有比第一方向形成的凹凸的重复的单位长度的重复单位长度的单位长度的凹凸。 此外,取向层由具有相对于UV光稳定的主链的化合物和各自具有键合芳族基团的脂肪族环状基团的侧链以及主链之间的交联而形成 链,其中所述芳族基团基本上在所述第一方向上排列。