Multi-domain liquid crystal display having concave virtual bump structures

    公开(公告)号:US06642983B2

    公开(公告)日:2003-11-04

    申请号:US09754961

    申请日:2001-01-05

    IPC分类号: G02F113

    CPC分类号: G02F1/133707 G02F1/1393

    摘要: A liquid crystal display has at least one concave structure formed on one of pixel and electrode layers in each pixel area. Between the electrode layer having concave structures and a substrate is a passivation layer that is dented by the concave structures. The concave structures form multiple domains for each pixel. One of the electrode layers may be formed with bump structures or openings combining with fringe field effect to provide pre-tilting of liquid crystals to enhance the effect of multiple domains. Each concave structure in a pixel area can have a different top view, cross-sectional view or three-dimensional structure. The concave structure can be formed by existing manufacturing process. One mask rubbing process or photo-aligned method may be used to align liquid crystals for the display in cooperation with the concave structures.

    Multi-domain wide viewing angle liquid crystal display having slits on electrodes and bumps above the slits
    2.
    发明授权
    Multi-domain wide viewing angle liquid crystal display having slits on electrodes and bumps above the slits 有权
    多域宽视角液晶显示器,在狭缝上方的电极和凸起上具有狭缝

    公开(公告)号:US06573965B1

    公开(公告)日:2003-06-03

    申请号:US09596313

    申请日:2000-06-18

    IPC分类号: G02F11337

    摘要: A multi-domain wide viewing angle liquid crystal display (LCD) has a plurality of bump-with-slit structures formed on at least one substrate. Each bump-with-slit structure in a single pixel area includes a plurality of slits formed on the electrodes and a plurality of bumps formed above the slits. It uses the combination of bumps and electrode slits to control the directions of the pre-tilted angles of liquid crystal molecules and to form multiple domains. The capacity storage area is designed and located under the slit of the electrode. Such capacity storage area has the function of covering the disclination lines. The LCD structure decreases the color dispersion of the LCD, increases the response speed and reduces the generation of disclination lines. Moreover, the driving voltage for the LCD is lower and the process window is larger. Because the generation of disclination lines is reduced, the aperture ratio under the black matrix area of the multi-domain wide-viewing angle LCD of the invention is increased by 15% to 20% as compared to the conventional multi-domain LCD.

    摘要翻译: 多域宽视角液晶显示器(LCD)具有形成在至少一个基板上的多个凸起切口结构。 单个像素区域中的每个凹凸狭缝结构包括形成在电极上的多个狭缝和形成在狭缝上方的多个凸起。 它使用凸起和电极狭缝的组合来控制液晶分子的预倾角的方向并形成多个畴。 容量存储区设计并位于电极的狭缝下方。 这种容量存储区域具有覆盖旋错线的功能。 LCD结构降低了LCD的色散,提高了响应速度并减少了旋错线的产生。 此外,LCD的驱动电压较低,处理窗口较大。 由于发生旋错线的生成,与现有的多域LCD相比,本发明的多域宽视角LCD的黑矩阵区域的开口率增加了15%〜20%。