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    • 5. 发明授权
    • Transflective liquid crystal display device
    • 透反式液晶显示装置
    • US06836306B2
    • 2004-12-28
    • US10753395
    • 2004-01-09
    • Hirofumi KubotaNaohide WakitaTsuyoshi UemuraSadayoshi Hotta
    • Hirofumi KubotaNaohide WakitaTsuyoshi UemuraSadayoshi Hotta
    • G02F11335
    • G02F1/133753G02F1/133555G02F1/1395G02F1/1396G02F2001/133757G02F2001/133761
    • A transflective liquid crystal display device having excellent display quality is provided which is capable of precisely controlling the alignment of liquid crystal molecules and of providing a high brightness display both in a transmissive display mode and in a reflective display mode. The transflective liquid crystal display panel has a pair of substrates, a liquid crystal layer sandwiched between the substrates, pixel electrodes disposed on the surface of one of the substrates facing the liquid crystal layer, a counter electrode disposed on the surface of the other substrate facing the liquid crystal layer, and an alignment film covering the surface of each of the substrates facing the liquid crystal layer. The pixel electrodes, each including an electrode for reflective display and an electrode for transmissive display, are disposed such that the distances to the other substrate from the electrode for reflective display and from the electrode for transmissive display are different. Liquid crystal molecules at the liquid crystal layer surface facing the electrode for reflective display in a region above the electrode for reflective display (reflective display region) are aligned in the same direction as liquid crystal molecules in a region above the electrode for transmissive display (transmissive display region) that are in the same plane as the molecules in the reflective display region, the plane being parallel to the principal surfaces of the substrates.
    • 6. 发明授权
    • Active matrix liquid crystal display apparatus and method of producing
the same
    • 有源矩阵液晶显示装置及其制造方法
    • US5185601A
    • 1993-02-09
    • US638537
    • 1991-01-08
    • Mamoru TakedaTatsuhiko TamuraSadayoshi Hotta
    • Mamoru TakedaTatsuhiko TamuraSadayoshi Hotta
    • G02F1/1333G02F1/1343G02F1/136G02F1/1362G02F1/1368G09G3/36H01L21/336H01L29/786
    • G02F1/136213G09G3/3648
    • A liquid crystal display apparatus includes a transistor array substrate having formed thereon an array of pixel electrodes arranged in a matrix to form pixels, an array of switching thin film transistors arranged in a matrix for driving the pixels, respectively, gate bus lines arranged in rows for applying scanning signals to the switching thin film transistors, and source bus lines arranged in columns for applying display data signals to the switching thin film transistors. A counter substrate has formed thereon a common counter electrode confronting the pixel electrodes, and a liquid crystal layer is sandwiched between the transistor array substrate and the counter substrate. The transistor array substrate further has formed thereon a common electrode disposed below the pixel electrodes through an insulating layer for constituting auxiliary capacitors with the pixel electrodes. The common electrode is extended to cover an area above each source bus line or each gate bus line through another insulating layer so as to shield the pixel electrodes from the source or gate bus lines.
    • 一种液晶显示装置,包括:晶体管阵列基板,其上形成有矩阵排列成像素的像素电极阵列,排列成矩阵状的开关薄膜晶体管阵列,分别驱动像素,栅极总线布置成行 用于将扫描信号施加到开关薄膜晶体管,以及用于将列显示数据信号施加到开关薄膜晶体管的列布置的源极总线。 对置基板在其上形成有面对像素电极的公共对向电极,液晶层夹在晶体管阵列基板和对置基板之间。 晶体管阵列基板还在其上形成有通过绝缘层设置在像素电极下方的公共电极,用于构成具有像素电极的辅助电容器。 公共电极延伸以覆盖每个源极总线或每个栅极总线上方的区域通过另一个绝缘层,以便屏蔽来自源极或栅极总线的像素电极。
    • 10. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US5303072A
    • 1994-04-12
    • US722550
    • 1991-06-26
    • Mamoru TakedaSadayoshi HottaIchiro YamashitaTatsuhiko TamuraYoneharu Takubo
    • Mamoru TakedaSadayoshi HottaIchiro YamashitaTatsuhiko TamuraYoneharu Takubo
    • G02F1/1362G09G3/36G02F1/133
    • G02F1/13624G09G3/3648G09G3/3659G02F1/136213G09G2300/0809G09G2310/0205G09G2330/08
    • An improved arrangement of a liquid crystal display device is provided in which the redundancy of a known but unwanted TFT (thin film transistor) defect is suppressed so that the yield per finished liquid crystal display device product can be increased without deterioration in the picture quality. Each pixel of the liquid crystal display device arranged at an intersection of one of scanning lines and one of signal lines is provided with two or three TFTs and also, a storage capacitor which is formed of a portion of a gate insulating layer and is sandwiched between its electrode and a preceding scanning line in the previous row using no extra masking procedure. The source, drain and gate electrodes of both the first and third TFTs are respectively coupled to the same signal line, the electrode of the same pixel and the adjacent scanning lines. The gate, source and drain electrodes of the second TFT are respectively coupled to the same scanning line to which the gate electrode of the first TFT is coupled, the electrode of the same pixel and the electrode of a succeeding pixel provided on the opposite side of the scanning line with respect to the same pixel. The arrangement also has a scanning driver circuit capable of activating two scanning lines at the same time for a sequential one-by-one scanning operation, whereby no fault in a reproduced image will be perceived in spite of the presence of a defective TFT.
    • 提供了一种液晶显示装置的改进布置,其中已知但不期望的TFT(薄膜晶体管)缺陷的冗余被抑制,使得可以在不降低图像质量的情况下提高每一个完成的液晶显示装置的产量。 布置在扫描线和信号线之一的交点处的液晶显示装置的每个像素都设置有两个或三个TFT,以及由栅极绝缘层的一部分形成并夹在 其电极和前一行中的前一扫描线不使用额外的屏蔽程序。 第一和第三TFT的源极,漏极和栅极电极分别耦合到相同的信号线,相同像素的电极和相邻的扫描线。 第二TFT的栅极,源极和漏极电极分别耦合到与第一TFT的栅电极耦合的相同的扫描线,相同像素的电极和设置在第二TFT的相反的一侧的后续像素的电极 相对于相同像素的扫描线。 该布置还具有能够同时激活两条扫描线以进行逐次扫描操作的扫描驱动电路,由此即使存在有缺陷的TFT,也不会感觉到再现图像中的故障。