公开(公告)号：EP1093105A1

公开(公告)日：2001-04-18

申请号：EP00905396.8

申请日：2000-02-28

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： UEMURA, Tsuyoshi ,  KUBOTA, Hirofumi ,  NAKAO, Kenji

IPC分类号： G09F9/00 ,  G02F1/1335

CPC分类号： G02B6/0026 ,  G02B6/0038 ,  G02B6/0055 ,  G02F1/133615

摘要： An illuminating device reduced in thickness and weight with a light guide plate eliminated, and a display device provided with the illuminating device. A back-lighting illuminating device (2) to be disposed behind a liquid crystal display panel (3), comprising a light source (4) and a reflection plate (8), wherein the light source (4) is disposed in the vicinity of one end of the reflection plate (8) which is curved parabolically toward the display panel (3) as it extends away from the light source (4).

摘要翻译： 省略了导光板的厚度和重量的照明装置，以及设置有照明装置的显示装置。 背光照明装置（2），其设置在液晶显示面板（3）的后方，包括光源（4）和反射板（8），其中，所述光源（4）配置在 反射板（8）的一端在远离光源（4）延伸的同时朝向显示面板（3）抛物线弯曲。

公开(公告)号：EP1331507A1

公开(公告)日：2003-07-30

申请号：EP01978867.8

申请日：2001-10-24

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： FUKAMI, Tetsuo ,  KUMAGAWA, Katsuhiko ,  NAKAO, Kenji

IPC分类号： G02F1/133 ,  G09G3/36

CPC分类号： G09G3/3659 ,  G02F1/1395 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2310/06 ,  G09G2320/0209

摘要： A method of driving a liquid crystal display and the liquid crystal display of the present invention are such that in a liquid crystal display in which video signals are written onto a plurality of pixels frame by frame (Tf), voltages corresponding to the video signals are held in the pixels, and a modulation degree of the liquid crystal layer in an alignment state for display is controlled in accordance with the held voltages, thereby displaying an image, a backward-transition-prevention voltage ΔV for preventing backward transition of a liquid crystal layer is temporalily superposed on the voltages (Vd1 - Vdn) corresponding to the video signals in a hold period (Th) of the voltages (Vd1 - Vdn) corresponding to the video signals.

公开(公告)号：EP1172685A1

公开(公告)日：2002-01-16

申请号：EP01904399.1

申请日：2001-02-13

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： ISHIHARA, Shoichi ,  TANAKA, Yoshinori ,  NAKAO, Kenji ,  HATTORI, Katsuji ,  UEMURA, Tsuyoshi

IPC分类号： G02F1/1337 ,  G02F1/137

CPC分类号： G02F1/1395 ,  G02F1/133719 ,  G02F1/133723 ,  G02F1/133734 ,  G02F1/133784 ,  G02F1/133788 ,  G02F2001/133746

摘要： A liquid crystal display having a high transition speed in which bend alignment is formed easily upon application of a voltage of several volts by subjecting an alignment film, which can impart liquid crystal molecules with a pretilt angle of 15-90°, to parallel alignment. A liquid crystal display requiring no transition operation can also be provided. Furthermore, a liquid crystal display of OCB mode excellent in practicality can be provided because of excellent field angle characteristics.

摘要翻译： 通过使能使预倾斜角为15-90°的液晶分子的取向膜进行平行排列，通过施加几伏的电压容易地形成弯曲取向的高转变速度的液晶显示器。 还可以提供不需要转换操作的液晶显示器。 此外，由于优异的场角特性，可以提供实用性优异的OCB模式的液晶显示器。

公开(公告)号：EP1331513A1

公开(公告)日：2003-07-30

申请号：EP01976702.9

申请日：2001-10-17

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： ISHIHARA, Shoichi ,  SUZUKI, Daiichi ,  OKITA, Mitsutaka ,  NAKAO, Kenji ,  TANAKA, Yoshinori ,  UEMURA, Tsuyoshi

IPC分类号： G02F1/139

CPC分类号： G02F1/1395 ,  G02F1/133371 ,  G02F1/13363 ,  G02F2001/133622

摘要： A liquid crystal display according to the invention includes a liquid crystal display element (100) having a liquid crystal layer (4) containing liquid crystal molecules oriented so as to assume a bend alignment when an image display is being made, and at least one retardation plate for compensating for a retardation of the liquid crystal layer, wherein the display is made by varying the retardation of the liquid crystal layer in accordance with video signals inputted from outside to vary the transmittance of the liquid crystal display element to light for display, characterized in that:

the liquid crystal display element (100) includes a plurality of red pixels for displaying a red color, a plurality of green pixels for displaying a green color, and a plurality of blue pixels for displaying a blue color; and a thickness (53B) of the liquid crystal layer (4) associated with the blue pixels is larger than a thickness (53R,53G) of the liquid crystal layer associated with the red pixels and/or the green pixels.

公开(公告)号：EP1286202A1

公开(公告)日：2003-02-26

申请号：EP02710455.3

申请日：2002-02-01

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： ARIMOTO, Katsuyuki ,  OHTA, Yoshihito ,  KOBAYASHI, Takahiro ,  FUNAMOTO, Taro ,  KOBAYASHI, Yoshinori ,  NAKAO, Kenji ,  KAWAGUCHI, Seiji

IPC分类号： G02F1/133 ,  G09G3/36 ,  G09G3/20

CPC分类号： G09G3/3648 ,  G09G3/3614 ,  G09G3/3655 ,  G09G2300/0491 ,  G09G2310/0251 ,  G09G2310/06 ,  G09G2320/0209

摘要： A signal converting section 401 increases a transfer rate of an input image signal to be supplied to a liquid crystal panel 405 and, at the same time, also inserts a non-image signal for applying a predetermined voltage to liquid-crystal cells in space of the input image signal and supplies it as a picture-element signal to a source driver 403. To each picture cell, an input image signal and a non-image signal are sequentially written with positive or negative polarity. For all picture elements, after the input image signal is written, the non-image signal equal in polarity to the input image signal is always written. Furthermore, after the non-image signal is written, an image signal opposite in polarity to the non-image signal is always written. Thus, when an image is displayed on the liquid crystal panel in OCB mode, it is possible to prevent the occurrence of back transition and carry out image display evenly.

摘要翻译： 信号转换部分401增加要提供给液晶面板405的输入图像信号的传送速率，并且同时还将用于向液晶单元施加预定电压的非图像信号插入到 输入图像信号并将其作为图像元素信号提供给源极驱动器403.对于每个图像单元，输入图像信号和非图像信号被顺序地写入正或负极性。 对于所有图像元素，在写入输入图像信号之后，总是写入与输入图像信号极性相等的非图像信号。 此外，在非图像信号被写入之后，总是写入与非图像信号极性相反的图像信号。 因此，当以OCB模式在液晶面板上显示图像时，可以防止反向转换的发生并且均匀地进行图像显示。

公开(公告)号：EP1118902A1

公开(公告)日：2001-07-25

申请号：EP00949917.9

申请日：2000-07-26

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： NAKAO, Kenji ,  UEMURA, Tsuyoshi ,  ISHIHARA, Shoichi ,  HATTORI, Katsuji ,  TANAKA, Yoshinori

IPC分类号： G02F1/1335 ,  G02F1/139

CPC分类号： G02F1/133502 ,  G02F1/133512 ,  G02F1/133615 ,  G02F1/136209 ,  G02F1/1393 ,  G02F1/1395

摘要： In a liquid crystal display element particularly that having a mode wherein the display operation is performed by controlling the amount of birefringence of the liquid crystal layer, such as an OCB type liquid crystal display element, the contrast is improved. This is achieved by the following: the reflection of light that occurs inside the element is reduced, the reflected light resulting from the difference in the refractive indices between materials for the boundary surfaces of the portions inside the element is reduced, and the internal light, such as light from the backlight, is directed toward the direction orthogonal to the surfaces of the substrates. More specifically, a light absorbing material may be used in portions of a black matrix, active elements, and wirings formed on at least one of the substrates.

摘要翻译： 在液晶显示元件中，特别是具有通过控制诸如OCB型液晶显示元件的液晶层的双折射量进行显示操作的模式的液晶显示元件，提高了对比度。 这是通过以下方式实现的：元件内发生的光的反射减小，由元件内部的边界面的材料之间的折射率差导致的反射光减少， 例如来自背光源的光，朝向与基板的表面正交的方向。 更具体地说，光吸收材料可用于形成在至少一个基底上的黑矩阵，有源元件和布线的部分。