公开(公告)号：US20040212577A1

公开(公告)日：2004-10-28

申请号：US10829177

申请日：2004-04-22

Applicant: NEC LCD TECHNOLOGIES, LTD

Inventor： Hiroshi Takeda ,  Machihiko Yamaguchi

IPC: G09G003/36

CPC classification number: G09G3/3648 ,  G09G2310/02 ,  G09G2320/0223

Abstract: In a liquid crystal display apparatus, a set of write-in voltages are generated corresponding to a horizontal line signal of an input video frame so that they appear at end points of the column lines of a LCD panel. The row lines of the LCD panel are successively selected and the write-in voltages are supplied from the end points of the column lines to the liquid crystal cells of the selected row line for a variable write-in period. In order to compensate for shades-of-gray differences between the top and bottom of the LCD panel, the write-in period is increasingly varied as a function of the geometric distance from the selected row line to the end points of the column lines. The write-in period may be increasingly variable from a nominal value, or from a less-than-nominal value to the nominal value, or a combination of both.

Abstract translation: 在液晶显示装置中，对应于输入视频帧的水平线信号产生一组写入电压，使得它们出现在LCD面板的列线的端点处。 连续选择LCD面板的行线，并将写入电压从列线的端点供给到所选行行的液晶单元，用于可变写入周期。 为了补偿LCD面板的顶部和底部之间的灰度差异，写入周期随着从所选行线到列线的端点的几何距离的函数而变化。 写入周期可能从标称值或从小于标称值到标称值或两者的组合变得越来越大。

公开(公告)号：US20030222840A1

公开(公告)日：2003-12-04

申请号：US10413458

申请日：2003-04-14

Applicant: NEC LCD Technologies, Ltd.

Inventor： Koichi Koga ,  Noboru Okuzono ,  Machihiko Yamaguchi

IPC: G09G003/36

CPC classification number: G09G3/3696 ,  G09G3/2074 ,  G09G3/3607 ,  G09G3/3648

Abstract: In a liquid crystal display device where each unit pixel p arranged on a liquid crystal panel 101A is constituted by a plurality of pixels p1, p2, and p3, the pixels p1, p2, and p3 are divided into sub-pixels p11 and p12, sub-pixels p21, and p22, and sub-pixels p31 and p32, respectively. The liquid crystal display device is provided with driver ICs 201 and 202 for driving the sub-pixels p11, p21, and p31, and the sub-pixels p12, p22, and p32 constituting the pixels so that different gradation-brightness value characteristics may be given. Due to this, multi-gradation display can be performed.

Abstract translation: 在配置在液晶面板101A上的各单位像素p由多个像素p1，p2，p3构成的液晶显示装置中，将像素p1，p2，p3分割为子像素p11，p12， 子像素p21和p22以及子像素p31和p32。 液晶显示装置设置有用于驱动构成像素的子像素p11，p21和p31以及子像素p12，p22和p32的驱动器IC 201和202，使得不同的灰度亮度值特性可以是 给了 由此，可以进行多层次显示。