公开(公告)号：US08564514B2

公开(公告)日：2013-10-22

申请号：US10282679

申请日：2002-10-29

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

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

IPC分类号： G09G3/36

CPC分类号： G09G3/3651 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/0283 ,  G09G2310/063 ,  G09G2310/08

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.

公开(公告)号：US07847913B2

公开(公告)日：2010-12-07

申请号：US11975020

申请日：2007-10-17

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： G02F1/141 ,  C09K19/02

CPC分类号： G02F1/141 ,  G02F1/1368

摘要： A liquid crystal material is used in which the maximum angle of the optical axis change by liquid crystal molecule when a voltage of one polarity is applied is larger than 45 degrees and a condition of |2Ps·A|>|5(V)Clc·A| is satisfied where Ps (nC/cm2) is the magnitude of the spontaneous polarization per unit area, A (cm2) is the electrode area of the pixel and Clc (nF/cm2) is the liquid crystal capacity per unit area. The transmittance in the liquid crystal part is increased and excellent display can be performed without the provision of a storage capacitor. Consequently, the storage capacitor is unnecessary, so that the aperture ratio of the liquid crystal panel can be increased.

摘要翻译： 使用一种液晶材料，其中当施加一个极性的电压时光轴的最大角度由液晶分子变化大于45度，条件为| 2Ps·A |> | 5（V）Clc· A | 其中Ps（nC / cm 2）是每单位面积的自发极化的大小，A（cm2）是像素的电极面积，Clc（nF / cm 2）是每单位面积的液晶容量。 液晶部分的透射率增加，而不需要提供存储电容就可以进行优异的显示。 因此，不需要存储电容器，从而可以提高液晶面板的开口率。

公开(公告)号：US20080303990A1

公开(公告)日：2008-12-11

申请号：US11975020

申请日：2007-10-17

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： G02F1/1335 ,  C09K19/02

CPC分类号： G02F1/141 ,  G02F1/1368

摘要： A liquid crystal material is used in which the maximum angle of the optical axis change by liquid crystal molecule when a voltage of one polarity is applied is larger than 45 degrees and a condition of |2Ps·A|>|5Clc·A| is satisfied where Ps (nC/cm2) is the magnitude of the spontaneous polarization per unit area, A (cm2) is the electrode area of the pixel and Clc (nF/cm2) is the liquid crystal capacity per unit area. The transmittance in the liquid crystal part is increased and excellent display can be performed without the provision of a storage capacitor. Consequently, the storage capacitor is unnecessary, so that the aperture ratio of the liquid crystal panel can be increased.

摘要翻译： 使用一种液晶材料，其中当施加一个极性的电压时光轴的最大角度由液晶分子变化大于45度，条件为| 2Ps.A |> | 5Clc.A | 其中Ps（nC / cm 2）是每单位面积的自发极化的大小，A（cm2）是像素的电极面积，Clc（nF / cm 2）是每单位面积的液晶容量。 液晶部分的透射率增加，而不需要提供存储电容就可以进行优异的显示。 因此，不需要存储电容器，从而可以提高液晶面板的开口率。

公开(公告)号：US20080192158A1

公开(公告)日：2008-08-14

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： G02F1/1347 ,  G02F1/141

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：US20080043178A1

公开(公告)日：2008-02-21

申请号：US11975081

申请日：2007-10-17

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： G02F1/1335

CPC分类号： G09G3/3406 ,  G02F1/141 ,  G02F2001/133622 ,  G09G3/3648 ,  G09G2310/0235

摘要： When the applied voltages are 7 V and 5 V, a transmittance of equal to or more than 50% is obtained when conditions of |2Ps·A|≦|7Clc·A| and |2Ps·A|≦|5Clc·A | are satisfied among the magnitude Ps (nC/cm2) of the spontaneous polarization per unit area of the liquid crystal material, the electrode area A (cm2) of the pixels and the capacity of liquid crystal Clc (nF/cm2) per unit area, and a transmittance of equal to or more than 80% is obtained when conditions of |2Ps·A|≦|4.5Clc·A| and |2Ps·A|≦|3Clc·A| are satisfied thereamong. A sufficiently high transmittance is obtained without the provision of a storage capacitor.

摘要翻译： 当施加的电压为7V和5V时，当| 2Ps.A | <= | 7Clc.A |的条件时，获得等于或大于50％的透射率。 和| 2Ps.A | <= | 5Clc.A | 在液晶材料的每单位面积的自发极化的量级Ps（nC / cm 2）之间满足像素的像素的电极面积A（cm 2以上） 并且当| 2Ps.A | <= | 4.5Clc的条件时，获得每单位面积的液晶Clc（nF / cm 2）的容量和等于或大于80％的透射率 .A | 和| 2Ps.A | <= | 3Clc.A | 以后都满意 在不设置存储电容器的情况下获得足够高的透射率。

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：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：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.