公开(公告)号：US20070176884A1

公开(公告)日：2007-08-02

申请号：US11626949

申请日：2007-01-25

Applicant: Mitsuasa TAKAHASHI

Inventor： Mitsuasa TAKAHASHI

IPC: G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/3648 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/0633 ,  G09G2360/145

Abstract: A liquid crystal display device is provided which is capable of improving display quality of moving images. In the liquid crystal display device, every time a driving pulse voltage is generated by a backlight driving circuit in synchronization with a timing signal fed from a lighting timing control section and is applied to a backlight and a scanning signal is applied to each scanning electrode of a liquid crystal panel, the backlight is turned OFF during a period before completion of a response of each liquid crystal molecule to application of a display signal and is turned ON at time of the completion of the response. When displacement of each of the liquid crystal molecules is large and therefore the change in light transmittance is large, the backlight is turned OFF and, therefore, no change in luminance on a display screen occurs, as a result, contrast of images can be improved.

Abstract translation: 提供一种能够提高运动图像的显示质量的液晶显示装置。 在液晶显示装置中，每当与从点灯定时控制部输入的定时信号同步地由背光驱动电路产生驱动脉冲电压，并施加到背光源，并且将扫描信号施加到 液晶面板，在完成每个液晶分子的响应完成之前的一段时间内将背光关闭，以应用显示信号，并且在响应结束时被接通。 当每个液晶分子的位移大，因此透光率的变化大时，背光被关闭，因此显示屏幕上的亮度没有变化，结果可以提高图像的对比度 。

公开(公告)号：US20070132676A1

公开(公告)日：2007-06-14

申请号：US11566130

申请日：2006-12-01

Applicant: Mitsuasa TAKAHASHI

Inventor： Mitsuasa TAKAHASHI

IPC: G09G3/32

CPC classification number: G02B6/0076 ,  G02B6/0068 ,  G02B6/0073 ,  G02F1/133603 ,  G02F1/133621 ,  G02F2203/34

Abstract: A backlight for a color liquid crystal display apparatus in which light of the three primary colors of red, blue, and green is directly incident on the corresponding pixels of a liquid crystal layer, the backlight comprising a first light-guide plate; a first incidence part for receiving light of a first primary color from among the light of the three primary colors in a first area on a first lateral surface of the first light-guide plate; a second incidence part for receiving light of a second primary color light from among the light of the three primary colors in a second area on a second lateral surface that is opposite to the first lateral surface of the first light-guide plate; and a third incidence part for receiving light of a third primary color from among the light of the three primary colors in a third area on a rear surface of the first light-guide plate. The number of superposition steps is thereby reduced, light-guide plates can easily be superposed onto an LCD panel with high accuracy, and a lightweight and inexpensive backlight for a color liquid crystal display apparatus can be obtained.

Abstract translation: 一种用于彩色液晶显示装置的背光，其中红色，蓝色和绿色的三原色的光直接入射到液晶层的相应像素上，该背光包括第一导光板; 第一入射部分，用于在第一导光板的第一侧表面上的第一区域中从三原色光中接收第一基色的光; 第二入射部分，用于在与第一导光板的第一侧表面相对的第二侧表面上的第二区域中从三原色光中接收第二原色光的光; 以及第三入射部分，用于在第一导光板的后表面上的第三区域中从三原色光中接收第三原色光。 由此，能够将导光板容易地以高精度重叠在LCD面板上，从而可以减少重叠台数，能够获得用于彩色液晶显示装置的轻便且廉价的背光源。