公开(公告)号：US06646628B2

公开(公告)日：2003-11-11

申请号：US09919212

申请日：2001-07-30

申请人： Yoshiki Shirochi ,  Yuji Nagata ,  Hiroaki Endo

发明人： Yoshiki Shirochi ,  Yuji Nagata ,  Hiroaki Endo

IPC分类号： G09G336

CPC分类号： H04N9/312 ,  H04N9/3105 ,  H04N2005/745

摘要： In active driving of liquid crystal panels (R, G, and B) corresponding to R, G, and B color by X shift registers (R, G, and B) and Y shift registers (R, G, and B), alternating-current driving is performed such that signals to be written to the R color and B color liquid crystal panels are opposite in polarity to a signal to be written to the G color liquid crystal panel and also Vcom voltage of each of the liquid crystal panels is adjusted to thereby reduce flicker. The Vcom voltage supplied to the B color liquid crystal panel, for example, is finely adjusted to reduce flicker of a synthetic image of the liquid crystal panels.

公开(公告)号：US06795063B2

公开(公告)日：2004-09-21

申请号：US09784514

申请日：2001-02-15

申请人： Hiroaki Endo ,  Tetsuji Kikuchi ,  Yoshiki Shirochi

发明人： Hiroaki Endo ,  Tetsuji Kikuchi ,  Yoshiki Shirochi

IPC分类号： G09G500

CPC分类号： H04N9/73

摘要： Image data of the respective colors are converted, by look-up tables in which &ggr; correction data are stored, into gradation data that are white-balanced with intervention of the V-T characteristics of liquid crystal panels. The generated gradation data are supplied to D/A converters and the liquid crystal panels via liquid crystal driving circuits. Gamma correction data within dynamic ranges that are set for each display apparatus by measuring a luminance ratio and contrast ratios of the respective colors are written to the look-up tables in advance. As a result, all they correction data stored in the look-up tables can be used effectively. The invention is directed to such a method for generating data of look-up tables and an image display apparatus that performs gradation correction by using thus-formed look-up tables.

摘要翻译： 各种颜色的图像数据通过存储伽马校正数据的查找表转换为与液晶面板的V-T特性干涉而白平衡的灰度数据。 生成的灰度数据通过液晶驱动电路提供给D / A转换器和液晶面板。 通过测量各种颜色的亮度比和对比度来为每个显示装置设置的动态范围内的伽马校正数据被预先写入查找表。 结果，可以有效地使用存储在查找表中的所有校正数据。 本发明涉及这样一种用于生成查找表的数据的方法以及通过使用这样形成的查找表来执行灰度校正的图像显示装置。

公开(公告)号：US07088478B2

公开(公告)日：2006-08-08

申请号：US10059794

申请日：2002-01-29

申请人： Yoshiki Shirochi ,  Hiroaki Endo

发明人： Yoshiki Shirochi ,  Hiroaki Endo

IPC分类号： G03F3/08

CPC分类号： H04N9/69 ,  H04N9/67

摘要： 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.

摘要翻译： 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

申请人： Hiroaki Endo ,  Yoshiki Shirochi ,  Shigeki Ohno

发明人： Hiroaki Endo ,  Yoshiki Shirochi ,  Shigeki Ohno

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

CPC分类号： G09G3/002 ,  G09G3/36 ,  G09G2320/0276 ,  G09G2320/041

摘要： 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.

摘要翻译： 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：US07885461B2

公开(公告)日：2011-02-08

申请号：US12586667

申请日：2009-09-25

申请人： 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

发明人： 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分类号： G06K9/00

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

摘要： 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.

摘要翻译： 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：US06556266B1

公开(公告)日：2003-04-29

申请号：US09624663

申请日：2000-07-25

申请人： Yoshiki Shirochi ,  Keiichi Nito ,  Yoshio Suzuki

发明人： Yoshiki Shirochi ,  Keiichi Nito ,  Yoshio Suzuki

IPC分类号： G02F11335

CPC分类号： G02B27/145 ,  G02B5/3083 ,  G02B27/149 ,  G02F1/133632 ,  H04N9/3105

摘要： A liquid crystal projector providing an image having a high luminance and excellent contrast, including a polarization plate which is arranged at an incident side of a liquid crystal panel and transmits a first polarized beam therethrough, a polarization plate which is arranged at an exit side of the liquid crystal panel and transmits an optically modulated second polarized beam therethrough and outputs the same to a projection lens, and a phase difference film having one of a phase delay axis or a phase forward axis which is orthogonal to the polarization axis of the polarization plate and arranged inclined at a predetermined angle about an axis of rotation comprising an axis parallel to the polarization axis of the polarization plate in the plane in which said phase delay axis or phase forward axis is formed.

摘要翻译： 一种提供具有高亮度和优异对比度的图像的液晶投影仪，包括布置在液晶面板的入射侧并透射第一偏振光束的偏振板，偏振板布置在其出射侧 液晶面板，透射光调制的第二偏振光束并将其输出到投影透镜，并且具有与偏振板的偏振轴正交的相位延迟轴或相位正向轴中的一个的相位差膜 并且围绕包括形成所述相位延迟轴或相位前进轴的平面中的偏振板的偏振轴平行的轴线的旋转轴线以预定角度倾斜布置。

公开(公告)号：US5990936A

公开(公告)日：1999-11-23

申请号：US205394

申请日：1994-03-03

申请人： Hirokazu Nakayoshi ,  Yoshiki Shirochi ,  Seizi Sato ,  Hiroyuki Shiota ,  Hiroshi Mamiya ,  Naoki Kamaya

发明人： Hirokazu Nakayoshi ,  Yoshiki Shirochi ,  Seizi Sato ,  Hiroyuki Shiota ,  Hiroshi Mamiya ,  Naoki Kamaya

IPC分类号： H04N13/04 ,  G02B27/22 ,  H04N13/00 ,  H04N7/18

CPC分类号： H04N13/044 ,  G02B27/2235 ,  H04N13/0048 ,  H04N13/0051 ,  H04N13/0497 ,  H04N13/0055 ,  H04N13/0059 ,  H04N13/0425 ,  H04N13/0436 ,  H04N13/0438

摘要： An imaging system includes left and right display panels arranged so as to be viewed separately by left and right eyes of a viewer. A three dimensional video signal is supplied to a drive circuit for the display panels such that image data from the three dimensional video signal is supplied alternately to the left and right display panels. The display panels are of a memory effect LCD type such that, when no image data is received by the display panel, the image data of the previously received field is maintained on display for providing flickerless imaging.

摘要翻译： 一种成像系统包括左右显示面板，其被布置成由观看者的左眼和右眼单独观看。 将三维视频信号提供给用于显示面板的驱动电路，使得来自三维视频信号的图像数据被交替地提供给左右显示面板。 显示面板具有存储效果LCD类型，使得当显示面板没有接收到图像数据时，保持先前接收到的场的图像数据，以提供无闪烁成像。

公开(公告)号：US5790184A

公开(公告)日：1998-08-04

申请号：US50823

申请日：1993-04-21

申请人： Seizi Sato ,  Yoshiki Shirochi ,  Naoki Kamaya

发明人： Seizi Sato ,  Yoshiki Shirochi ,  Naoki Kamaya

IPC分类号： H04N5/64 ,  H04N13/00 ,  H04N13/04 ,  H04N7/18

CPC分类号： H04N13/044 ,  H04N13/0048 ,  H04N13/0477 ,  H04N13/0481 ,  H04N13/0497 ,  H04N13/0003 ,  H04N13/0037 ,  H04N13/0051 ,  H04N13/0055 ,  H04N13/0059 ,  H04N13/0422

摘要： An image display system stereoscopically reproduces a visual scene and includes an image display unit with a pair of LCD panels each starting its operation in response to a start pulse received every vertical field of an input video signal; a source of input video signals representing right and left stereoscopic video images every field; a circuit for generating right and left start pulses, which are mutually in an opposite-phase relationship, in synchronism with the arrival of the right and left video images; and a driver for driving the pair of LCD panels by the right and left start pulses. The image display unit is shaped into a virtual viewer incorporated in a ski-goggle type frame which is adapted to be worn on a user's head. The video images displayed on the two LCD panels are refreshed alternately to obtain a flickerless image without the necessity of employing any particular circuit or terminal.

摘要翻译： 图像显示系统立体地再现视觉场景，并且包括具有一对LCD面板的图像显示单元，每个LCD面板响应于每个输入视频信号的垂直场接收到的起始脉冲而开始其操作; 输入视频信号的源，每个场表示右和左立体视频图像; 用于产生与左右视频图像的到达同步的相反相位关系的左起始脉冲和左起始脉冲的电路; 以及用于通过左右起始脉冲驱动该对LCD面板的驱动器。 该图像显示单元被成形为一个适合佩戴在用户头上的滑雪镜型框架中的虚拟观察者。 显示在两个LCD面板上的视频图像被交替地刷新以获得无闪烁的图像，而不需要使用任何特定的电路或终端。

公开(公告)号：US5003388A

公开(公告)日：1991-03-26

申请号：US358241

申请日：1989-05-30

申请人： Yoshiki Shirochi ,  Hirokazu Takaoka ,  Hiroshi Hiraki

发明人： Yoshiki Shirochi ,  Hirokazu Takaoka ,  Hiroshi Hiraki

IPC分类号： H04N5/66 ,  G09G3/36 ,  H04N3/12 ,  H04N9/12 ,  H04N9/30

CPC分类号： H04N3/127 ,  G09G3/3611 ,  G09G2340/0414

摘要： An apparatus for displaying a video signal has a plurality of display elements corresponding to one standard of the television signal disposed in an X-Y matrix shape. The apparatus includes a separator for separating a sync signal from an input video signal, a control signal generator for generating a control signal in response to the sync signal, a driver for driving the display elements in response to the video signal and control signal, and a converter for changing the number of scanning lines in response to a timing changing in each frame when a different standard of the television signal is supplied as the input video signal.

公开(公告)号：US4445151A

公开(公告)日：1984-04-24

申请号：US330874

申请日：1981-12-15

申请人： Takashi Kinoshita ,  Yoshiki Shirochi ,  Noboru Motoyoshi

发明人： Takashi Kinoshita ,  Yoshiki Shirochi ,  Noboru Motoyoshi

IPC分类号： G11B20/02 ,  H04N5/92 ,  H04N9/802 ,  H04N5/782

CPC分类号： H04N5/92 ,  G11B20/02 ,  H04N5/9204 ,  H04N9/802

摘要： In an apparatus for recording and/or reproducing a television signal with multiplex audio signals, a pilot signal is recorded on one or both of the audio tracks of a video tape in a manner to identify the mode of the multiplex audio signals and each pilot signal is detected to establish such mode when reproducing. For example, the frequency of the pilot signal may be changed for identifying different modes of the multiplex audio signals, such as, the bilingual mode and the stereo-phonic mode, with the pilot signal of selected frequency being recorded on one of the audio tracks, or the pilot signal having a certain frequency is recorded on one of the audio tracks in the case of the bilingual mode, and on the other audio track of the tape in the case of the stereo-phonic mode. In still another embodiment, the pilot signal is recorded in both audio tracks of the tape and the phase relation of the recorded pilot signals is varied to identify the mode of the multiplex audio signals.

摘要翻译： 在用多路音频信号记录和/或再现电视信号的装置中，导频信号以识别多路复用音频信号的模式和每个导频信号的方式记录在视频磁带的一个或两个音轨上 被检测以在再现时建立这种模式。 例如，导频信号的频率可以被改变，用于识别多路复用音频信号的不同模式，例如双语模式和立体声模式，所选频率的导频信号被记录在音频轨道之一 或者在双语模式的情况下，具有一定频率的导频信号被记录在音频轨道之一上，并且在立体声模式的情况下被记录在磁带的另一音频轨道上。 在另一个实施例中，导频信号被记录在磁带的两个音轨中，并且改变所记录的导频信号的相位关系以识别多路复用音频信号的模式。