公开(公告)号：US08466861B2

公开(公告)日：2013-06-18

申请号：US12060482

申请日：2008-04-01

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G02F1/13471 ,  G09G3/3413 ,  G09G2300/023 ,  G09G2310/02 ,  G09G2310/0235

摘要： A liquid crystal display device displays an image by stacking a plurality of liquid crystal panels, and by controlling a light transmittance with voltage application to liquid crystal of each panel, wherein during execution of voltage application to the liquid crystal of one of the panels, a voltage to the liquid crystal of the other panel serves as a non-display voltage. No image is displayed simultaneously on the two or more stacked liquid crystal panels. In the liquid crystal panel to which no voltage is applied and on which no image is displayed, the longitudinal axial direction of liquid crystal molecules coincides with the polarizing axial direction of polarizers, or is orthogonal to the polarizing axial direction; therefore, no influence is exerted on the overall double refraction, and the overall voltage-transmitted light intensity characteristic corresponds to the sum of the voltage-transmitted light intensity characteristics of the respective panels.

摘要翻译： 液晶显示装置通过堆叠多个液晶面板来显示图像，并且通过对每个面板的液晶施加电压来控制透光率，其中在施加到一个面板的液晶的电压执行期间， 另一个面板的液晶的电压用作非显示电压。 两个或多个堆叠液晶面板上没有同时显示图像。 在没有施加电压并且没有显示图像的液晶面板中，液晶分子的纵向轴向方向与偏振器的偏振轴方向一致或者与偏振轴方向正交; 因此，对整体双折射没有影响，整个电压透过光强度特性对应于各个面板的电压透过光强度特性之和。

公开(公告)号：US07499012B2

公开(公告)日：2009-03-03

申请号：US10930414

申请日：2004-08-31

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

IPC分类号： G09G3/36

CPC分类号： G09G3/3651 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2310/061 ,  G09G2320/0613 ,  G09G2320/0633 ,  G09G2320/103 ,  G09G2330/021

摘要： After rewriting the displayed image by applying a voltage corresponding to desired image data to a ferroelectric liquid crystal through TFTs at a predetermined cycle, the application of voltage to the ferroelectric liquid crystal is stopped, and the image displayed just before stopping the application of voltage is retained. In this memory display period, a gate-off voltage is applied to turn off the TFTs. In this memory display period, the emission intensity of a back-light is lowered compared to that in a normal display period. Before stopping the application of voltage to the ferroelectric liquid crystal, a voltage corresponding to an image to be displayed after stopping the application of voltage is applied. Before resuming the application of voltage corresponding to the image data to the ferroelectric liquid crystal, a voltage for causing all pixels to display black image is applied.

摘要翻译： 在通过TFT以预定周期向铁电液晶施加与期望图像数据相对应的电压来重写显示图像之后，停止对铁电液晶施加电压，并且在停止施加电压之前显示的图像是 保留。 在该存储器显示周期中，施加栅极截止电压以关断TFT。 在该记忆显示期间，与正常显示期间相比，背光的发光强度降低。 在停止向铁电液晶施加电压之前，施加与停止施加电压之后要显示的图像相对应的电压。 在将对应于图像数据的电压恢复到铁电液晶之前，施加使所有像素显示黑色图像的电压。

公开(公告)号：US20080266510A1

公开(公告)日：2008-10-30

申请号：US12074878

申请日：2008-03-06

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

IPC分类号： G02F1/1339

CPC分类号： G02F1/1339 ,  G02B6/0068 ,  G02F2201/50 ,  G02F2203/60 ,  G09G3/3413 ,  G09G3/3629 ,  G09G2310/0235

摘要： In a liquid crystal display device which has a pair of opposing substrates having a gap filled with a liquid crystal material, with a peripheral edge portion of the paired substrates being sealed by a sealing member, between the thickness (ts) of the sealing member and the thickness (tlc) of the liquid crystal layer, a relationship of ts/tlc≧2, more preferably, ts/tlc≧3, is satisfied. By making a difference smaller between a volume change in the liquid crystal material due to a temperature change and a volume change in a space in which the liquid crystal is sealed, defects caused by the volume difference are restrained from occurring. In order to achieve the relationship between ts and tlc, a flat layer is placed on one or both of the substrates.

摘要翻译： 在具有填充有液晶材料的间隙的一对相对基板的液晶显示装置中，一对基板的周缘部由密封部件密封，在厚度（t < SUB>）和液晶层的厚度（t L1c1）之间的关系，t / = 2，更优选为t 1 / t 1/3> 3。 通过使由于温度变化引起的液晶材料的体积变化与液晶密封的空间的体积变化之间的差减小，从而抑制由体积差引起的缺陷。 为了实现t 1和t 2之间的关系，将平坦层放置在一个或两个基板上。

公开(公告)号：US20080018588A1

公开(公告)日：2008-01-24

申请号：US11864773

申请日：2007-09-28

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

IPC分类号： G09G3/36

CPC分类号： G09G3/342 ,  G02B6/0068 ,  G02F1/133621 ,  G02F2001/133622 ,  G09G2310/0235 ,  G09G2310/024

摘要： In a predetermined period (one frame or one subframe), a backlight is lit between the mid-point of primary data-writing scanning and the mid-point of secondary data-writing scanning for each of lighting regions of which the backlight is divided into four. When the time required for the data-writing scanning is 50% of the predetermined time, the ratio of the time the liquid crystal panel is in the transmission state to the time the backlight is lit (panel-on rate) is high at 93.8%. The ratio of the brightness gradient (luminance at the center of the display area/luminance at the edge of the display area) is low at 1.14 to one. If the backlight is divided into 10 and lit, the panel-on rate can be increased to 97.5%, and the ratio of the brightness gradient can be reduced to 1.05 to one.

摘要翻译： 在预定的时间段（一帧或一个子帧）中，在背光被分割成的每个照明区域的一次数据写入扫描的中点和辅助数据写入扫描的中点之间，背光被点亮 四。 当数据写入扫描所需的时间为预定时间的50％时，液晶面板处于传输状态的时间与背光照明时间的比率（面板开启率）高达93.8％ 。 亮度梯度（显示区域中心的亮度/显示区域的边缘处的亮度）的比率为1.14比1。 如果背光被分为10和点亮，面板开启率可以提高到97.5％，并且亮度梯度的比率可以降低到1.05比1。

公开(公告)号：US20080001878A1

公开(公告)日：2008-01-03

申请号：US11899493

申请日：2007-09-06

申请人： Tetsuya Makino ,  Toshiaki Yoshihara ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

发明人： Tetsuya Makino ,  Toshiaki Yoshihara ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

IPC分类号： G09G3/36

CPC分类号： G09G3/3651 ,  G09G3/3688 ,  G09G2310/0235 ,  G09G2310/061 ,  G09G2320/0252 ,  G09G2320/0271 ,  G09G2360/18

摘要： A liquid crystal panel has: a glass substrate with pixel electrodes that are arranged in a matrix shape, and TFTs that are connected to the pixel electrodes; and a glass substrate with an opposing electrode and color filters that are arranged in a matrix shape. A liquid crystal layer is formed in a space between an oriented film and oriented film by filling a ferroelectric liquid crystal into the space. When writing display data, and when deleting display data that has been written, a voltage, not including 0V, that becomes a voltage potential, or in other words, a voltage that is greater than a threshold voltage at which the optical characteristic of the filled ferroelectric liquid crystal changes is applied between the opposing electrode and pixel electrodes. An image is displayed over all gradation numbers, including the low-gradation side, and the display characteristic is improved.

摘要翻译： 液晶面板具有：具有排列成矩阵状的像素电极的玻璃基板和与像素电极连接的TFT; 以及配置成矩阵状的具有对置电极和滤色器的玻璃基板。 通过将铁电液晶填充到空间中，在取向膜和取向膜之间的空间中形成液晶层。 当写入显示数据时，并且当删除已经写入的显示数据时，不包括0V的电压变为电压电位，或者换句话说，大于阈值电压的电压，在该阈值电压下， 在相对电极和像素电极之间施加铁电液晶变化。 在所有灰度级数显示图像，包括低等级侧，显示特性得到改善。

公开(公告)号：US20070008441A1

公开(公告)日：2007-01-11

申请号：US11518563

申请日：2006-09-08

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

IPC分类号： G02F1/1343

CPC分类号： G09G3/3659 ,  G09G3/3651 ,  G09G2300/0876 ,  G09G2310/0235 ,  G09G2310/06 ,  G09G2330/021

摘要： The present invention is a liquid crystal display device having: a TFT for controlling a voltage application, correspondingly to each of a plurality of pixels; and a capacitor (storage capacitor) connected to the TFT, and after a voltage corresponding to a pixel data is applied to each pixel, one potential of the capacitor (storage capacitor) is changed. One terminal of the capacitor (storage capacitor) on an N-th line is connected to a gate line of the TFT on an (N-1)-th line. After a gate of the TFT on the N-th line is turned off, a gate voltage on the (N-1)-th line is changed.

摘要翻译： 本发明是一种液晶显示装置，其具有：对应于多个像素中的每一个的用于控制电压施加的TFT; 以及连接到TFT的电容器（存储电容器），并且在对每个像素施加与像素数据相对应的电压之后，改变电容器（存储电容器）的一个电位。 第N线上的电容器（存储电容器）的一个端子连接到第（N-1）线上的TFT的栅极线。 在第N线上的TFT的栅极截止之后，第（N-1）行上的栅极电压改变。

公开(公告)号：US20060092122A1

公开(公告)日：2006-05-04

申请号：US11296774

申请日：2005-12-07

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

IPC分类号： G09G3/36

CPC分类号： G09G3/3651 ,  G09G3/3406 ,  G09G3/3677 ,  G09G2330/022

摘要： A voltage corresponding to desired image data is applied to a ferroelectric liquid crystal having a spontaneous polarization at a predetermined cycle to rewrite the displayed image (period A), and then, all voltages applied to the ferroelectric liquid crystal are removed (timing C) to retain the displayed image before the removal (period B). A gate selection period (voltage application period to the ferroelectric liquid crystal) t2 before stopping the voltage application is set longer than a gate selection period (voltage application period to the ferroelectric liquid crystal) t1 in the normal display. Increasing the voltage application period to the ferroelectric liquid crystal provides a sufficient response of the liquid crystal during the gate selection period, thereby realizing high memory ability.

摘要翻译： 将对应于所需图像数据的电压以预定周期施加到具有自发极化的铁电液晶，以重写显示图像（周期A），然后将施加到铁电液晶的所有电压（定时C）除去 在删除之前保留显示的图像（周期B）。 在停止施加电压之前的栅极选择期间（铁电液晶的电压施加期间）t 2被设定为长于栅极选择期间（对铁电液晶的电压施加期间）t < 1 。 将电压施加期间增加到铁电液晶，在栅极选择期间提供了液晶的足够的响应，从而实现了高的记忆能力。

公开(公告)号：US20050212737A1

公开(公告)日：2005-09-29

申请号：US10930414

申请日：2004-08-31

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

IPC分类号： G02F1/133 ,  G02F1/136 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36 ,  H01L29/786

CPC分类号： G09G3/3651 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2310/061 ,  G09G2320/0613 ,  G09G2320/0633 ,  G09G2320/103 ,  G09G2330/021

摘要： After rewriting the displayed image by applying a voltage corresponding to desired image data to a ferroelectric liquid crystal through TFTs at a predetermined cycle, the application of voltage to the ferroelectric liquid crystal is stopped, and the image displayed just before stopping the application of voltage is retained. In this memory display period, a gate-off voltage is applied to turn off the TFTs. In this memory display period, the emission intensity of a back-light is lowered compared to that in a normal display period. Before stopping the application of voltage to the ferroelectric liquid crystal, a voltage corresponding to an image to be displayed after stopping the application of voltage is applied. Before resuming the application of voltage corresponding to the image data to the ferroelectric liquid crystal, a voltage for causing all pixels to display black image is applied.

摘要翻译： 在通过TFT以预定周期向铁电液晶施加与期望图像数据相对应的电压来重写显示图像之后，停止对铁电液晶施加电压，并且在停止施加电压之前显示的图像是 保留。 在该存储器显示周期中，施加栅极截止电压以关断TFT。 在该记忆显示期间，与正常显示期间相比，背光的发光强度降低。 在停止向铁电液晶施加电压之前，施加与停止施加电压之后要显示的图像相对应的电压。 在将对应于图像数据的电压恢复到铁电液晶之前，施加使所有像素显示黑色图像的电压。

公开(公告)号：US20050062708A1

公开(公告)日：2005-03-24

申请号：US10783440

申请日：2004-02-20

申请人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

发明人： Toshiaki Yoshihara ,  Tetsuya Makino ,  Shinji Tadaki ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

IPC分类号： G02F1/141 ,  F21S8/04 ,  F21V8/00 ,  F21Y101/02 ,  G02F1/133 ,  G02F1/13357 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/3614 ,  G09G3/3651 ,  G09G2310/0235 ,  G09G2330/021

摘要： In a sub-frame of each color, the time required for each data scanning is 25% of the sub-frame, and the time between two times of data scanning is also 25% of the sub-frame. In a sub-frame of each color, a back-light is turned on between the intermediate timing in the first (first-half) data scanning and the intermediate timing in the second (second-half) data scanning. The ON time of the back-light is 50% of the sub-frame, and the ratio of time (panel ON rate) in which a liquid crystal panel is in a transmission state (ON) to the time in which the back-light is turned on is 88%, and thus high light utilization efficiency is achieved.

摘要翻译： 在每种颜色的子帧中，每个数据扫描所需的时间是子帧的25％，两次数据扫描之间的时间也是子帧的25％。 在每种颜色的子帧中，在第一（上半）数据扫描的中间定时和第二（后半）数据扫描中的中间定时之间，背光被接通。 背光的导通时间为子帧的50％，液晶面板处于透射状态（ON）的时间（面板导通率）与背光的时间 开启88％，从而达到高的光利用效率。

公开(公告)号：US07081873B2

公开(公告)日：2006-07-25

申请号：US09946265

申请日：2001-09-05

申请人： Toshiaki Yoshihara ,  Shinji Tadaki ,  Tetsuya Makino ,  Hironori Shiroto ,  Yoshinori Kiyota

发明人： Toshiaki Yoshihara ,  Shinji Tadaki ,  Tetsuya Makino ,  Hironori Shiroto ,  Yoshinori Kiyota

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3406 ,  G09G2310/0237 ,  G09G2310/0283 ,  G09G2310/061

摘要： In a liquid crystal display device that uses a liquid crystal material having spontaneous polarization and is actively driven by a TFT, a voltage corresponding to image data is applied twice by driving the TFT of each pixel electrode on a line by line basis of a liquid crystal panel, during writing in one frame. During erasure in one frame, voltage application to liquid crystal by batch selection of all the pixel electrodes is performed three times. With this three times of voltage application, it is possible to achieve a black display state in each pixel and make the stored charge amount at the liquid crystal in each pixel substantially zero.