公开(公告)号：US08451201B2

公开(公告)日：2013-05-28

申请号：US11992579

申请日：2006-09-28

申请人： Mitsuaki Hirata ,  Masayuki Katakami ,  Toshihide Tsubata ,  Makoto Shiomi ,  Shigeaki Mizushima

发明人： Mitsuaki Hirata ,  Masayuki Katakami ,  Toshihide Tsubata ,  Makoto Shiomi ,  Shigeaki Mizushima

IPC分类号： G09G5/02

CPC分类号： G02F1/13471 ,  G02F2001/133531 ,  G09G3/3648 ,  G09G2300/023 ,  G09G2320/0271

摘要： The method of driving a liquid crystal display in accordance with one embodiment of the present invention is a method of driving a liquid crystal display whereby a first liquid crystal panels produces a display from a first display signal and the second liquid crystal panel produces a display a second display signal derived from the first display signal, the first and second liquid crystal panels being stacked on top of each other. The luminance of the first liquid crystal panel is extended based on the luminance extension ratio obtained from the gray levels for dots contained in the first display signal and a logical maximum gray level of input image data. The luminance of the second liquid crystal panel which produces a display from the second display signal is lowered by the amount by which luminance is extended on the first liquid crystal panel. A liquid crystal display with high display quality is realized by restraining decrease in saturation which would otherwise become obtrusive when two liquid crystal panels are stacked.

摘要翻译： 根据本发明的一个实施例的驱动液晶显示器的方法是驱动液晶显示器的方法，由此第一液晶面板从第一显示信号产生显示，并且第二液晶面板产生显示器 从第一显示信号得出的第二显示信号，第一和第二液晶显示面板堆叠在一起。 基于从包含在第一显示信号中的点的灰度级和输入图像数据的逻辑最大灰度级获得的亮度扩展比来扩展第一液晶面板的亮度。 从第二显示信号产生显示的第二液晶面板的亮度降低了在第一液晶面板上亮度延长的量。 通过抑制饱和度的降低来实现具有高显示质量的液晶显示器，否则当两个液晶面板堆叠时会变得突出。

公开(公告)号：US08063921B2

公开(公告)日：2011-11-22

申请号：US11980420

申请日：2007-10-31

申请人： Makoto Shiomi ,  Kazunari Tomizawa ,  Koichi Miyachi ,  Tomoo Furukawa

发明人： Makoto Shiomi ,  Kazunari Tomizawa ,  Koichi Miyachi ,  Tomoo Furukawa

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2340/16

摘要： In one embodiment of the present invention, data, such as video signal data, for example, for a next desired frame is first modulated or varied to facilitate a transition from a current frame to a next desired frame. A modulation processing section can be used, for example, to thus produce a corrected video signal to facilitate the current-to-next desired grayscale level transition. Thereafter, spatial filtering is then carried on the corrected video signal, using a spatial filtering section for example. As such, high frequency components in a spatial domain may be reduced, even after the spatial frequencies of an ordinary video signal and potentially those of noise have been scaled up. Therefore, undesirable noise-caused display quality degradation can be reduced or even prevented, while pixel response speed as a result of the facilitation of grayscale level transition is increased.

摘要翻译： 在本发明的一个实施例中，例如用于下一期望帧的诸如视频信号数据的数据首先被调制或变化，以便于从当前帧到下一个期望帧的转变。 例如，可以使用调制处理部分来产生经校正的视频信号，以便于当前到下一个期望的灰度级转换。 此后，使用例如空间滤波部分对校正后的视频信号进行空间滤波。 因此，即使在普通视频信号的空间频率和潜在噪声的空间频率已经被放大之后，空间域中的高频分量也可能被减小。 因此，可以降低或甚至防止不期望的噪声引起的显示质量下降，同时由于促进灰度等级转换而导致的像素响应速度增加。

公开(公告)号：US20110141370A1

公开(公告)日：2011-06-16

申请号：US12929861

申请日：2011-02-22

申请人： Kazunari Tomizawa ,  Makoto Shiomi ,  Hidekazu Miyata ,  Koichi Miyachi ,  Akihito Jinda

发明人： Kazunari Tomizawa ,  Makoto Shiomi ,  Hidekazu Miyata ,  Koichi Miyachi ,  Akihito Jinda

IPC分类号： H04N9/73 ,  H04N5/44

CPC分类号： G09G3/2011 ,  G09G3/3611 ,  G09G2310/0224 ,  G09G2310/0229 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/16 ,  H04N7/012 ,  H04N19/112

摘要： The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.

公开(公告)号：US07956876B2

公开(公告)日：2011-06-07

申请号：US11886226

申请日：2006-03-08

申请人： Makoto Shiomi

发明人： Makoto Shiomi

IPC分类号： G09G5/10

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/028 ,  G09G2320/0285 ,  G09G2340/16

摘要： In one embodiment of the present invention, in the case of dark display on sub-pixels, a sub-frame processing section is disclosed which sets video data for a sub-frame to a value falling within the range for dark display, and increases or decreases video data for a sub-frame so as to control luminance of the sub-pixels. In the case of bright display, the sub-frame processing section sets video data to a value falling within the range for bright display, and increase or decreases video data so as to control luminance of the sub-pixels. A modulation processing section corrects video data of each frame and then outputs corrected video data to the sub-frame processing section. Also, the modulation processing section predicts luminance that the sub-pixels reach at the end of the frame and then stores prediction results for correction and prediction in the subsequent frame. This realizes a display device which is brighter, has a wider range of viewing angles, restrains deteriorated image quality caused by excessive emphasis of grayscale transition, and has improved moving image quality.

摘要翻译： 在本发明的一个实施例中，在子像素上暗显示的情况下，公开了一种子帧处理部，其将用于子帧的视频数据设置为暗显示范围内的值，并且增加或 减少子帧的视频数据，以便控制子像素的亮度。 在明亮显示的情况下，子帧处理部分将视频数据设置为明亮显示范围内的值，并且增加或减少视频数据，以便控制子像素的亮度。 调制处理部对每帧的视频数据进行校正，然后将校正后的视频数据输出到子帧处理部。 此外，调制处理部分预测子像素在帧结束时到达的亮度，然后在后续帧中存储用于校正和预测的预测结果。 这实现了更亮的显示装置，具有更宽的视角范围，抑制了由过度强调灰度转换引起的劣化图像质量，并且改善了运动图像质量。

公开(公告)号：US07948566B2

公开(公告)日：2011-05-24

申请号：US12224854

申请日：2006-12-18

申请人： Makoto Shiomi

发明人： Makoto Shiomi

IPC分类号： G02F1/1335

CPC分类号： G02F1/1335 ,  G09G3/3648 ,  G09G2320/068

摘要： In a liquid crystal display apparatus realizing a dual view display by bonding a liquid crystal panel and a parallax barrier, the parallax barrier separates display images by treating three pixels including R, G, and B pixels as one unit (one picture element). At this time, luminance variation due to crosstalk concentrates on a right-end pixel among the three pixels constituting the one picture element (in a case where each pixel receives data from a source line immediately on the left of the pixel). Accordingly, the right-end pixel is arranged to be a B pixel that has a low correlation with luminance information and in which influence of crosstalk is hard to be viewed. Further, an applied voltage to be supplied to the display pixel of the B (blue) color and an input gradation are set to have a relationship along a γ curve that makes luminance variation difficult to occur in a low luminance area.

摘要翻译： 在通过粘接液晶面板和视差屏障实现双重显示的液晶显示装置中，视差屏障通过将包括R，G和B像素的三个像素（一个像素）进行处理来分离显示图像。 此时，由于串扰引起的亮度变化集中在构成一个像素的三个像素中的右端像素（每个像素从紧接在像素左侧的源极线接收数据的情况下）。 因此，右端像素被布置为与亮度信息具有低相关性并且难以观察串扰的影响的B像素。 此外，要提供给B（蓝色）的显示像素和输入灰度的施加电压被设置为沿着使得在低亮度区域中难以发生亮度变化的γ曲线具有关系。

公开(公告)号：US07920114B2

公开(公告)日：2011-04-05

申请号：US11720058

申请日：2005-12-01

申请人： Makoto Shiomi

发明人： Makoto Shiomi

IPC分类号： G09G3/36 ,  G09G5/02

CPC分类号： G09G3/3607 ,  G02F1/133514 ,  G02F2201/52 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2320/0219

摘要： A display panel is designed such that a pixel including sub-pixels indicative of red (R), green (G), blue (B) and at least one other color includes two sub-pixels at least in a longitudinal scanning direction and a color filter is provided for each of the sub-pixels. A driving device for the display panel includes a polarity reversal control section for performing polarity reversal drive with respect to every two dots in a lateral scanning direction and for performing polarity reversal drive with respect to every two lateral lines in a longitudinal scanning direction.

摘要翻译： 显示面板被设计成使得包括指示红色（R），绿色（G），蓝色（B）和至少一种其他颜色的子像素的像素至少在纵向扫描方向上包括两个子像素，并且颜色 为每个子像素提供滤波器。 用于显示面板的驱动装置包括极性反转控制部分，用于相对于横向扫描方向上的每两个点进行极性反转驱动，并且对于纵向扫描方向上的每两个横向线执行极性反转驱动。

公开(公告)号：US07880705B2

公开(公告)日：2011-02-01

申请号：US11183994

申请日：2005-07-19

申请人： Makoto Shiomi

发明人： Makoto Shiomi

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2320/10 ,  G09G2340/0407 ,  G09G2340/0428

摘要： There is provided a motion-adaptive grayscale level converter section between a video signal source and a pixel array. The pixel array includes a liquid crystal cell of normally black and vertically aligned mode. The motion-adaptive grayscale level converter section determines based on information from a decoder section whether the pixels of an image represented by a video signal is in a moving image area. If a pixel is in a moving image area, the motion-adaptive grayscale level converter section changes the grayscale level data representing the grayscale level of the pixel so that there is no darker grayscale level than a predetermined first grayscale level. The resultant data is output as a video signal. Accordingly, we can provide a liquid crystal display capable of easing image quality degradation due to insufficient response when displaying a moving image while maintaining the contrast ratio achieved for a still image display.

摘要翻译： 在视频信号源和像素阵列之间提供运动自适应灰度级转换器部分。 像素阵列包括通常为黑色和垂直对准模式的液晶单元。 运动自适应灰度级转换器部分基于来自解码器部分的信息确定由视频信号表示的图像的像素是否在运动图像区域中。 如果像素在运动图像区域中，则运动自适应灰度级转换器部分改变表示像素的灰度级的灰度级数据，使得不存在比预定的第一灰度级更深的灰度级。 所得数据作为视频信号输出。 因此，可以提供一种液晶显示器，其能够在保持对于静止图像显示所实现的对比度的同时显示运动图像时由于响应不足而使图像质量劣化。

公开(公告)号：US07738000B2

公开(公告)日：2010-06-15

申请号：US11065246

申请日：2005-02-25

申请人： Tomoo Furukawa ,  Makoto Shiomi ,  Tai Shiraishi ,  Mitsuhiro Shigeta

发明人： Tomoo Furukawa ,  Makoto Shiomi ,  Tai Shiraishi ,  Mitsuhiro Shigeta

IPC分类号： G09G5/02

CPC分类号： G09G3/2055 ,  G09G3/3611 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2340/16

摘要： A driving system of the present invention for use in a displaying device is provided with a pseudo bit-depth extension section. In the pseudo bit-depth extension section, a noise pattern is added to upper-n-bit data of an input signal D0 in m-bit, where (i) m is an integer of 9 or greater, and (ii) n is an integer of 8 or greater, but less than m. Then, upper-n-bit of data D1 thus obtained from the D0 is outputted, as output data D2, from the pseudo bit-depth extension section. The driving system is further provided with an overshoot-driving section for carrying out an overshoot-driving with respect to each of pixels. A noise amount of the noise pattern is 1 or less in 8-bit data, and a calculation in the overshoot-driving section is carried out with n-bit data. With this driving system which adopts a combination of (a) a overshoot-driving method for enforcing liquid crystal to respond at a high speed, and (b) a bit-depth extension technology in which a number of grayscales is increased by adding noise, it is possible to provide, at a low cost, a high-definition displaying device such as a liquid crystal display, having a high-response-characteristics and a high quality of grayscale reproduction.

摘要翻译： 用于显示装置的本发明的驱动系统具有伪位深度延伸部分。 在伪比特深度扩展部分中，将噪声模式添加到m位中的输入信号D0的高n位数据，其中（i）m是9或更大的整数，并且（ii）n是 8或更大，但小于m的整数。 然后，从D0获得的数据D1的上n位作为输出数据D2从伪位深度扩展部分输出。 驱动系统还设置有用于对每个像素进行过冲驱动的过冲驱动部。 在8位数据中噪声模式的噪声量为1或更小，并且利用n位数据执行过冲驱动部分中的计算。 该驱动系统采用（a）用于强制液晶高速响应的过冲驱动方法的组合，以及（b）通过增加噪声增加多个灰度级的位深度扩展技术， 可以以低成本提供具有高响应特性和高质量的灰度再现的诸如液晶显示器的高清晰度显示装置。

公开(公告)号：US07564525B2

公开(公告)日：2009-07-21

申请号：US11454781

申请日：2006-06-19

申请人： Koichi Miyachi ,  Makoto Shiomi ,  Nobukazu Nagai ,  Matsumi Nakajima

发明人： Koichi Miyachi ,  Makoto Shiomi ,  Nobukazu Nagai ,  Matsumi Nakajima

IPC分类号： G02F1/1337 ,  G02F1/1343

CPC分类号： G02F1/133707 ,  G02F1/134336 ,  G02F1/1393

摘要： A liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer interposed between the first and second substrates. At least one pixel region of the display includes a plurality of sub pixel regions in which liquid crystal molecules of the liquid crystal layer are oriented in an axially symmetrical manner. A plurality of pixel electrodes have a plurality of openings defined therein in each pixel region, the plurality of openings including a section which has been cut off from an outer shape of the pixel electrode, and the sub pixel regions are defined by sub electrode regions, in at least some of which openings defined in the pixel electrodes have their respective centers located at corners and/or sides of polygons.

摘要翻译： 液晶显示装置包括第一基板，第二基板和介于第一和第二基板之间的液晶层。 显示器的至少一个像素区域包括多个子像素区域，其中液晶层的液晶分子以轴对称的方式取向。 多个像素电极在每个像素区域中具有限定在其中的多个开口，所述多个开口包括从像素电极的外部形状切除的部分，并且子像素区域由子电极区域限定， 在像素电极中限定的开口中的至少一些开口具有各自的中心位于多边形的角和/或侧面。

公开(公告)号：US20090167791A1

公开(公告)日：2009-07-02

申请号：US12085461

申请日：2006-09-06

申请人： Makoto Shiomi

发明人： Makoto Shiomi

IPC分类号： G09G5/10 ,  G09G3/34 ,  H04N5/44

CPC分类号： G09G3/3688 ,  G09G3/2092 ,  G09G3/2096 ,  G09G2310/0275 ,  G09G2320/0247 ,  G09G2320/0285 ,  G09G2360/18

摘要： In one embodiment of the present invention, when an image is displayed in an image display device which has a frequency of 50 to 70 Hz in one frame period, a control LSI is set so that, in the case where the frame average luminance of a pixel is in the range of 150 [cd/m2] to 350 [cd/m2], the contrast ratio between subframe periods is set to: a range of not greater than 50 and not smaller than 1.5 when the luminance is 150 [cd/m2]; a range of not greater than 3.5 and not smaller than 1.5 when the luminance is 200 [cd/m2]; a range of not greater than 2.2 and not smaller than 1.5 when the luminance is 250 [cd/m2]; a range of not greater than 1.8 and not smaller than 1.5 when the luminance is 300 [cd/m2]; 1.5 when the luminance is 350 [cd/m2], and, for a frame average luminance other than the frame average luminance in the range, the contrast ratio is set so as to be monotonously changed between the contrast ratios corresponding to the respective frame average luminance. As a result, flicker visibility can be prevented and moving image blur can be suppressed, thereby realizing an image display device that can display a moving image with high quality.

摘要翻译： 在本发明的一个实施例中，当在一个帧周期内将图像显示在具有50至70Hz的频率的图像显示装置中时，控制LSI被设置为使得在一个帧的平均亮度为 像素在150 [cd / m2]至350 [cd / m2]的范围内，子帧周期之间的对比度被设置为：当亮度为150 [cd / m 2]时不大于50且不小于1.5的范围， m2]; 当亮度为200 [cd / m2]时，不大于3.5且不小于1.5的范围; 当亮度为250 [cd / m2]时，不大于2.2且不小于1.5的范围; 当亮度为300 [cd / m2]时，不大于1.8且不小于1.5的范围; 1.5，当亮度为350 [cd / m2]时，对于除了该范围内的帧平均亮度以外的帧平均亮度，对比度被设定为在对应于各帧平均值的对比度之间单调变化 亮度。 结果，可以防止闪烁可见度并且可以抑制运动图像模糊，从而实现能够以高质量显示运动图像的图像显示装置。