公开(公告)号：US20120243782A1

公开(公告)日：2012-09-27

申请号：US13493280

申请日：2012-06-11

Applicant: Ko Ishimoto ,  Koichiro Kakinuma ,  Takehiro Nakatsue ,  Tatsuhiko Matsumoto ,  Shuichi Haga ,  Hiroshi Takizuka ,  Yoshiki Shirochi ,  Naoya Katoh ,  Hiroshi Yamashita ,  Koichi Oura ,  Yoshihiro Kosugi ,  Junichi Iwai ,  Kazuji Uemura ,  Shigeo Kubota ,  Hideo Morita

Inventor： Ko Ishimoto ,  Koichiro Kakinuma ,  Takehiro Nakatsue ,  Tatsuhiko Matsumoto ,  Shuichi Haga ,  Hiroshi Takizuka ,  Yoshiki Shirochi ,  Naoya Katoh ,  Hiroshi Yamashita ,  Koichi Oura ,  Yoshihiro Kosugi ,  Junichi Iwai ,  Kazuji Uemura ,  Shigeo Kubota ,  Hideo Morita

IPC: G06K9/00

CPC classification number: H04N9/77 ,  G06T5/001 ,  G09G5/02 ,  G09G2340/06 ,  H04N1/60 ,  H04N1/64 ,  H04N9/64 ,  H04N9/67 ,  H04N9/69 ,  H04N9/735

Abstract: Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.

Abstract translation: 提供信号，其允许比预定标准更宽的颜色范围的颜色，其可以根据这样的预定标准由设备处理。 原色转换器根据BT.709将具有比根据BT.709的原色色更宽的颜色范围的原色点转换成基于根据BT.709的原色的第二颜色信号的第一颜色信号。 根据BT.709，光电传感器根据光电转换器特性将第二颜色信号转换为第三颜色信号，该光电转换器特征在对应于亮度信号和色差信号的0至1.0范围内的数值范围内定义。 彩色信号转换器将第三颜色信号转换成亮度信号和色差信号。 结合在彩色信号转换器中的校正器将色差信号校正为色差信号。

公开(公告)号：US08208721B2

公开(公告)日：2012-06-26

申请号：US12586665

申请日：2009-09-25

Applicant: Ko Ishimoto ,  Koichiro Kakinuma ,  Takehiro Nakatsue ,  Tatsuhiko Matsumoto ,  Shuichi Haga ,  Hiroshi Takizuka ,  Yoshiki Shirochi ,  Naoya Katoh ,  Hiroshi Yamashita ,  Koichi Oura ,  Yoshihiro Kosugi ,  Junichi Iwai ,  Kazuji Uemura ,  Shigeo Kubota ,  Hideo Morita

Inventor： Ko Ishimoto ,  Koichiro Kakinuma ,  Takehiro Nakatsue ,  Tatsuhiko Matsumoto ,  Shuichi Haga ,  Hiroshi Takizuka ,  Yoshiki Shirochi ,  Naoya Katoh ,  Hiroshi Yamashita ,  Koichi Oura ,  Yoshihiro Kosugi ,  Junichi Iwai ,  Kazuji Uemura ,  Shigeo Kubota ,  Hideo Morita

IPC: G06K9/36

CPC classification number: H04N9/77 ,  G06T5/001 ,  G09G5/02 ,  G09G2340/06 ,  H04N1/60 ,  H04N1/64 ,  H04N9/64 ,  H04N9/67 ,  H04N9/69 ,  H04N9/735

Abstract: Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.

Abstract translation: 提供信号，其允许比预定标准更宽的颜色范围的颜色，其可以根据这样的预定标准由设备处理。 原色转换器根据BT.709将具有比根据BT.709的原色色更宽的颜色范围的原色点转换成基于根据BT.709的原色的第二颜色信号的第一颜色信号。 根据BT.709，光电传感器根据光电转换器特性将第二颜色信号转换为第三颜色信号，该光电转换器特征在对应于亮度信号和色差信号的0至1.0范围内的数值范围内定义。 彩色信号转换器将第三颜色信号转换成亮度信号和色差信号。 结合在彩色信号转换器中的校正器将色差信号校正为色差信号。

公开(公告)号：US08063863B2

公开(公告)日：2011-11-22

申请号：US11662842

申请日：2006-06-15

Applicant: Tomoya Yano ,  Makio Iida ,  Yoshiki Shirochi

Inventor： Tomoya Yano ,  Makio Iida ,  Yoshiki Shirochi

IPC: G09G3/36 ,  G09G5/10

CPC classification number: G09G3/2025 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0271 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2320/0673 ,  G09G2340/0435 ,  G09G2340/16

Abstract: A picture display apparatus exploiting a liquid crystal display is disclosed. This picture display apparatus (10) includes an interpolator (11), an over-drive unit (12), an angle of visibility improvement unit (13), and a source driver (15) for driving a liquid crystal display panel (16). The interpolator converts the picture rate upwardly. The angle of visibility improvement unit (13) converts an input picture signal into a picture signal representing a grayscale level of the input picture signal by synthesis of liquid crystal transmittances of a plural number of temporally consecutive fields. Specifically, the angle of visibility improvement unit converts the input picture signal to a picture signal made up of a first field set to a signal value related with a high grayscale level and a second field set to a signal value related with a low grayscale level. In case time changes of the grayscale level have occurred in the input picture signal at the same spatial position, the over-drive unit (12) corrects the driving level for a signal value of one or both of the first and second fields depending on response of the liquid crystal.

Abstract translation: 公开了一种利用液晶显示器的图像显示装置。 该图像显示装置（10）包括内插器（11），过驱动单元（12），可视度改善单元（13）的角度和用于驱动液晶显示面板（16）的源极驱动器（15） 。 内插器向上转换图像速率。 可见度改善单元（13）的角度通过合成多个时间上连续的场的液晶透射率将输入图像信号转换成表示输入图像信号的灰度级的图像信号。 具体地说，视角改善单元将输入图像信号转换成由设置为与灰度级高的灰度级相关的信号值的第一场组成的图像信号和与低灰度级相关的信号值设定的第二场。 在相同空间位置的输入图像信号中发生灰度级变化的情况下，过驱动单元（12）根据响应来校正第一和第二场中的一个或两个的信号值的驱动电平 的液晶。

公开(公告)号：US20080284707A1

公开(公告)日：2008-11-20

申请号：US11975041

申请日：2007-10-17

Applicant: Koichi Katagawa ,  Hideo Morita ,  Yoshiki Shirochi ,  Hideaki Kawaura

Inventor： Koichi Katagawa ,  Hideo Morita ,  Yoshiki Shirochi ,  Hideaki Kawaura

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G01K13/00 ,  G09G3/3648 ,  G09G2320/041 ,  G09G2340/0435 ,  G09G2340/16

Abstract: A liquid crystal driver is provided, in which a frame rate of an input image signal is multiplied by 2N (N is an integer of one or more); each frame is divided into N positive field(s) and N negative field(s) respectively; the image signal is supplied to a liquid crystal panel with a positive polarity in a positive field; and the image signal is supplied to the liquid crystal panel with a negative polarity in a negative field. The liquid crystal driver includes a corrected image signal generator configured to generate a corrected image signal having the same amount of correction added to the positive field and negative field. The corrected image signal is supplied to the liquid crystal panel with the positive polarity in the positive field and the corrected image signal is supplied to the liquid crystal panel with the negative polarity in the negative field.

Abstract translation: 提供了一种液晶驱动器，其中输入图像信号的帧速率乘以2N（N是一个或多个的整数）; 每个帧分别分为N个正场和N个负场; 图像信号在正场中以正极性提供给液晶面板; 并且图像信号在负区域中以负极性提供给液晶面板。 液晶驱动器包括校正图像信号发生器，其被配置为产生具有与正场和负场相加的相同量的校正的校正图像信号。 校正后的图像信号在正场中以正极性提供给液晶面板，并且将校正后的图像信号以负极性的负极性提供给液晶面板。

公开(公告)号：US20080284699A1

公开(公告)日：2008-11-20

申请号：US11662842

申请日：2006-06-15

Applicant: Tomoya Yano ,  Makio Iida ,  Yoshiki Shirochi

Inventor： Tomoya Yano ,  Makio Iida ,  Yoshiki Shirochi

IPC: H04N7/173

CPC classification number: G09G3/2025 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0271 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2320/0673 ,  G09G2340/0435 ,  G09G2340/16

Abstract: A picture display apparatus exploiting a liquid crystal display is disclosed. This picture display apparatus (10) includes an interpolator (11), an over-drive unit (12), an angle of visibility improvement unit (13), and a source driver (15) for driving a liquid crystal display panel (16). The interpolator converts the picture rate upwardly. The angle of visibility improvement unit (13) converts an input picture signal into a picture signal representing a grayscale level of the input picture signal by synthesis of liquid crystal transmittances of a plural number of temporally consecutive fields. Specifically, the angle of visibility improvement unit converts the input picture signal to a picture signal made up of a first field set to a signal value related with a high grayscale level and a second field set to a signal value related with a low grayscale level. In case time changes of the grayscale level have occurred in the input picture signal at the same spatial position, the over-drive unit (12) corrects the driving level for a signal value of one or both of the first and second fields depending on response of the liquid crystal.

Abstract translation: 公开了一种利用液晶显示器的图像显示装置。 该图像显示装置（10）包括内插器（11），过驱动单元（12），可视度改善单元（13）的角度和用于驱动液晶显示面板（16）的源极驱动器（15） 。 内插器向上转换图像速率。 可见度改善单元（13）的角度通过合成多个时间上连续的场的液晶透射率将输入图像信号转换成表示输入图像信号的灰度级的图像信号。 具体地说，视角改善单元将输入图像信号转换成由设置为与灰度级高的灰度级相关的信号值的第一场组成的图像信号和与低灰度级相关的信号值的第二场。 在相同空间位置的输入图像信号中发生灰度级变化的情况下，过驱动单元（12）根据响应来校正第一和第二场中的一个或两个的信号值的驱动电平 的液晶。

公开(公告)号：US20080272998A1

公开(公告)日：2008-11-06

申请号：US10571911

申请日：2005-07-15

Applicant: Tomoya Yano ,  Yoshiki Shirochi ,  Toshinobu Isobe ,  Makio Iida

Inventor： Tomoya Yano ,  Yoshiki Shirochi ,  Toshinobu Isobe ,  Makio Iida

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G09G3/2018 ,  G09G3/2051 ,  G09G3/2055 ,  G09G3/3607 ,  G09G3/3696 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2320/0613 ,  G09G2320/0673

Abstract: An image display device and an image display method able to display a middle gray-scale by using a plurality of pixels or fields and, at the same time, improve viewing angle characteristics are provided. When displaying an image via a direct view type liquid crystal display screen, a gray-scales of an input video signal is converted to characteristic values (transmittances) of pixels two-dimensionally arranged with respect to the display image, and the gray-scale is converted so as to include, among a plurality of pixels or fields expressing a middle gray-scale, at least one pixel or field converted to a first characteristic value obtained by adding a positive correction value to the gray-scale of the input video signal, and at least one pixel or field converted to a second characteristic value obtained by adding a negative correction value to the gray-scale of the input video signal.

Abstract translation: 提供了能够通过使用多个像素或场来显示中间灰度并且同时改善视角特性的图像显示装置和图像显示方法。 当通过直视型液晶显示屏显示图像时，将输入视频信号的灰度转换为相对于显示图像二维布置的像素的特征值（透射率），灰度级 转换成在表示中间灰度的多个像素或场中包括转换成通过将正校正值与输入视频信号的灰度相加而获得的第一特征值的至少一个像素或场， 以及转换成通过将负校正值与输入视频信号的灰度相加而获得的第二特征值的至少一个像素或场。

公开(公告)号：US07088478B2

公开(公告)日：2006-08-08

申请号：US10059794

申请日：2002-01-29

Applicant: Yoshiki Shirochi ,  Hiroaki Endo

Inventor： Yoshiki Shirochi ,  Hiroaki Endo

IPC: G03F3/08

CPC classification number: H04N9/69 ,  H04N9/67

Abstract: Linear chromaticity conversion is used to perform color reproduction of a liquid crystal display (LCD) compatible with a cathode ray tube (CRT). An inputted signal is subjected to processing similar to processing used in the CRT display. A light source chromaticity conversion processing portion carries out a γ correction to the signal in a γ operation portion by using γ1=γcrt of the same nonlinear characteristics as the CRT, and performs an operation of a chromaticity conversion matrix in a matrix operation portion. An LCD inverse γ correction portion uses γ2 establishing γ_lcd=γlcd/γ2=1 to perform an inverse γ correction to the inputted signal. An LCD γ characteristic operation portion performs a γ correction using γ characteristics of the LCD to the signal inputted from the LCD inverse γ correction portion, outputs a picture signal, and causes an image to be displayed on the LCD.

Abstract translation: 线性色度转换用于执行与阴极射线管（CRT）兼容的液晶显示器（LCD）的色彩还原。 对输入的信号进行与CRT显示中使用的处理相似的处理。 光源色度转换处理部分通过使用与CRT相同的非线性特性的γ1 = gammacrt对伽马运算部分中的信号进行伽马校正，并且在矩阵运算部分中执行色度转换矩阵的运算。 LCD反伽马校正部分使用建立gamma_lcd = gammalcd / gamma2 = 1的伽马2对输入的信号执行反伽马校正。 LCD伽马特征操作部分使用LCD的伽马特性对从LCD反伽马校正部分输入的信号进行伽马校正，输出图像信号，并使图像显示在LCD上。

公开(公告)号：US06961035B2

公开(公告)日：2005-11-01

申请号：US10074414

申请日：2002-02-12

Applicant: Hiroaki Endo ,  Yoshiki Shirochi ,  Shigeki Ohno

Inventor： Hiroaki Endo ,  Yoshiki Shirochi ,  Shigeki Ohno

IPC: G02F1/13 ,  G02F1/133 ,  G03B21/00 ,  G03B21/14 ,  G03B21/16 ,  G09G3/00 ,  G09G3/20 ,  G09G3/36 ,  H04N5/74

CPC classification number: G09G3/002 ,  G09G3/36 ,  G09G2320/0276 ,  G09G2320/041

Abstract: A liquid crystal projector apparatus is presented, which can display an image free from an influence of a temperature variation of a liquid crystal panel without the necessity to directly measure the temperature of the liquid crystal panel. The liquid crystal projector apparatus includes a temperature sensor for detecting a temperature at a location in the liquid crystal projector apparatus except liquid crystal panels, a memory for storing temperature detection data obtained by the temperature sensor within a period from a power supply starting time to a steady operation entering time, an arithmetic operation device for estimating a temperature of each of the liquid crystal panels based on the temperature detection data stored in the memory, and liquid crystal drive sections for correcting drive voltages for driving the liquid crystal panels with output signals of the arithmetic operation device.

Abstract translation: 本发明提供一种能够显示不受液晶面板的温度变动影响的影像的液晶投影装置，无需直接测量液晶面板的温度。 液晶投影仪装置包括用于检测除了液晶面板之外的液晶投影仪设备中的位置处的温度的温度传感器，用于存储由电源开始时间到期间内由温度传感器获得的温度检测数据的存储器 稳定运行输入时间，用于根据存储在存储器中的温度检测数据估计每个液晶面板的温度的算术运算装置，以及液晶驱动部分，用于校正用于驱动液晶面板的驱动电压，输出信号为 算术运算装置。

公开(公告)号：US06784961B2

公开(公告)日：2004-08-31

申请号：US09870327

申请日：2001-05-30

Applicant: Yoshio Suzuki ,  Sou Miyasaka ,  Yoshiki Shirochi ,  Takeshi Tanimoto

Inventor： Yoshio Suzuki ,  Sou Miyasaka ,  Yoshiki Shirochi ,  Takeshi Tanimoto

IPC: G02F11335

CPC classification number: H04N9/3105 ,  G02F1/133526 ,  G02F1/13363 ,  G02F1/133632 ,  G02F2001/133567

Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art. Further, a phase difference caused by the birefringence of the nematic liquid crystal molecule is compensated for by using a substance having properties optically opposite to the positive crystal, namely, a substance having birefringence equivalent to birefringence of a negative crystal.

Abstract translation: 提供一种投影型液晶显示装置，与现有技术相比，可以改善黑色级显示，因此可以显示较高对比度的图像。 光补偿器相对于液晶显示装置位于光出射侧，以补偿由液晶层的光入射区域中的液晶分子引起的光学相位差。 由于光学补偿器相对于液晶显示装置位于光出射侧，因此存在于入射侧区域中的液晶分子引起的双折射被补偿，而不受设置在光入射侧区域中的微透镜的影响 液晶平面。 因此，与现有技术相比，该装置可以改善黑电平显示，因此可以显示较高对比度的图像。 此外，通过使用具有与正晶相反的光学相反特性的物质，即具有与负晶体的双折射相当的双折射的物质来补偿由向列型液晶分子的双折射引起的相位差。

公开(公告)号：US06339411B2

公开(公告)日：2002-01-15

申请号：US09103836

申请日：1998-06-24

Applicant: Kazumasa Miyazaki ,  Masami Toriduka ,  Yoshiki Shirochi ,  Takao Takahashi ,  Keiichi Nito

Inventor： Kazumasa Miyazaki ,  Masami Toriduka ,  Yoshiki Shirochi ,  Takao Takahashi ,  Keiichi Nito

IPC: G09G500

CPC classification number: G09G3/002 ,  G02B27/017 ,  G09G3/20 ,  G09G3/3614 ,  G09G3/3648 ,  G09G5/399 ,  G09G2310/0235

Abstract: A display device has a line scan driving circuit disposed in a horizontal direction of a display region and a pixel driving circuit (dot scan driving circuit) disposed in a vertical direction of the display for performing image display with pixel groups each forming one line in the vertical direction being scanned in the horizontal direction. Vertical-horizontal converting circuitry is provided for converting an image data stream supplied with n pixels in a horizontal direction and m horizontal lines in a vertical scanning direction into an image data stream with m pixels in a vertical direction and n vertical lines in a horizontal scanning direction, and the vertical-horizontal converted data is supplied to the display device by a display controlling circuit. That is, image data is supplied to the displaying device as a vertical-horizontal converted data stream and display operation is executed by vertical pixel rows being scanned in the horizontal direction, as a result of which the relatively small line scan driving circuit is disposed above or below the display region instead of the relatively large dot scan driving circuit and thus the area required for circuit mounting above/below the display region is reduced and the size of the display device in the vertical direction can be effectively reduced.

Abstract translation: 显示装置具有沿显示区域的水平方向设置的行扫描驱动电路和沿着显示器的垂直方向设置的像素驱动电路（点扫描驱动电路），用于进行图像显示，每个像素组在每一个中形成一条线 垂直方向在水平方向扫描。 提供垂直 - 水平转换电路，用于将沿水平方向的n个像素提供的图像数据流和垂直扫描方向上的m个水平线转换为垂直方向上具有m个像素的图像数据流和在水平扫描中的n个垂直线 方向，并且通过显示控制电路将垂直水平转换的数据提供给显示装置。 也就是说，将图像数据作为垂直水平转换数据流提供给显示装置，并且通过在水平方向上扫描的垂直像素行执行显示操作，结果，相对较小的行扫描驱动电路设置在上方 或低于显示区域，而不是相对较大的点扫描驱动电路，因此减小了显示区域上方/下方的电路安装所需的面积，并且可以有效地降低显示装置在垂直方向上的尺寸。