公开(公告)号：US06930665B2

公开(公告)日：2005-08-16

申请号：US10353951

申请日：2003-01-30

申请人： Hiroyuki Sekine

发明人： Hiroyuki Sekine

IPC分类号： G02F1/133 ,  G09F9/30 ,  G09F9/35 ,  G09G3/20 ,  G09G3/30 ,  G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/30 ,  G09G3/3655 ,  G09G2310/027 ,  G09G2310/0297

摘要： A display device uses the load capacitances of two signal lines to perform DA conversion. Serial digital/analog conversion circuits (SDAC) in a data driver are provided for every two adjacent signal lines and use the load capacitances of these two signal lines to successively convert to analog data those data from the parallel/serial conversion circuits (PSC), PSC that correspond to the pixels of odd-numbered pixel columns and apply the converted analog data to the pixels of odd-numbered pixel columns, and successively apply data from PSC that correspond to the pixels of even-numbered pixel columns to the pixels of even-numbered pixel columns. Because the source of error of the SDAC is determined only by the difference between the two load capacitances, a polysilicon liquid crystal display device may be and the characteristics of the TFT may consequently show fluctuation, but will not act as an error source.

摘要翻译： 显示装置使用两根信号线的负载电容进行DA转换。 为每两个相邻信号线提供数据驱动器中的串行数字/模拟转换电路（SDAC），并使用这两条信号线的负载电容将来自并行/串行转换电路（PSC）， PSC，其对应于奇数像素列的像素，并将转换的模拟数据应用于奇数像素列的像素，并将与偶数像素列的像素对应的PSC的数据连续地应用于偶数像素列的像素 - 数字像素列。 由于SDAC的误差源仅由两个负载电容之间的差异决定，所以多晶硅液晶显示装置可能会因此而TFT的特性出现波动，而不会成为误差源。

公开(公告)号：US06580486B1

公开(公告)日：2003-06-17

申请号：US09604610

申请日：2000-06-27

申请人： Hiroyuki Sekine

发明人： Hiroyuki Sekine

IPC分类号： G02F11343

CPC分类号： G02F1/13454 ,  G02F1/1345

摘要： Disclosed is an active matrix liquid crystal display device, comprising: a pixel matrix; a data driver circuit for driving data lines; and gate driver circuits for driving gate lines. These constituting elements are all manufactured on the same substrate, and the data driver circuit and the gate driver circuits are formed outside a sealing region located outside the pixel matrix. In this case, all data lines formed between the data driver circuit and the pixel matrix are substantially covered by at least one metal layer which is composed of a metal different from that of the data lines, wherein the metal layer is adapted to perform both light shielding and reduction of electrostatic coupling capacitance between the data lines. Thus, it is possible to improve image quality by reducing noise generated following voltage fluctuation between data lines without providing any new metal layers for shielding.

摘要翻译： 公开了一种有源矩阵液晶显示装置，包括：像素矩阵; 用于驱动数据线的数据驱动电路; 以及用于驱动栅极线的栅极驱动电路。 这些构成要素全部制造在同一基板上，数据驱动电路和栅极驱动电路形成在位于像素矩阵的外侧的密封区域的外侧。 在这种情况下，形成在数据驱动电路和像素矩阵之间的所有数据线基本上由至少一个由不同于数据线的金属组成的金属层覆盖，其中金属层适于执行两个光 屏蔽和减少数据线之间的静电耦合电容。 因此，可以通过减少在数据线之间的电压波动之后产生的噪声而不提供用于屏蔽的任何新的金属层来提高图像质量。

公开(公告)号：US6137465A

公开(公告)日：2000-10-24

申请号：US195617

申请日：1998-11-19

申请人： Hiroyuki Sekine ,  Fujio Okumura

发明人： Hiroyuki Sekine ,  Fujio Okumura

IPC分类号： G02F1/133 ,  G09G3/36 ,  G09G5/00

CPC分类号： G09G3/3688 ,  G09G2310/0291

摘要： A drive circuit for a LCD device has a plurality of drive sections corresponding to a plurality of data lines in a pixel matrix. Each drive section receives a corresponding portion of a video signal to deliver the signal portion to a corresponding data line. The output circuit of each drive section includes an nMOS transistor, first switch, second switch and a pMOS transistor connected in series between power source lines to output the signal portion through the output node connecting the first switch and the second switch together. The nMOS transistor and pMOS transistor operate alternately for delivering a a positive signal and negative signal, respectively, thereby making it unnecessary to reset the data line for reducing power dissipation.

摘要翻译： 用于LCD装置的驱动电路具有与像素矩阵中的多条数据线对应的多个驱动部。 每个驱动部分接收视频信号的相应部分，以将信号部分传送到相应的数据线。 每个驱动部分的输出电路包括在电源线之间串联连接的nMOS晶体管，第一开关，第二开关和pMOS晶体管，以通过将第一开关和第二开关连接在一起的输出节点输出信号部分。 nMOS晶体管和pMOS晶体管分别进行工作，以分别输出正信号和负信号，因此不需要复位数据线以降低功耗。