公开(公告)号：US5490006A

公开(公告)日：1996-02-06

申请号：US230036

申请日：1994-04-19

申请人： Yoshihiro Masumoto ,  Hideki Ohmae

发明人： Yoshihiro Masumoto ,  Hideki Ohmae

IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363 ,  H04N5/74

CPC分类号： H04N5/7441 ,  G02F1/133632

摘要： In a liquid crystal light valve apparatus comprising an incident side polarizing plate, a twisted nematic liquid crystal cell of active matrix type and an outgoing side polarizing plate, two phase difference plates are provided between the incident side polarizing plate and the liquid crystal cell. Optical axes of both the phase difference plates are perpendicular with each other, and one of them is slanted by an angle, and thereby, a phase difference which is caused by the liquid crystal cell is compensated by the phase difference caused by two phase difference plates.

摘要翻译： 在包括入射侧偏振片，有源矩阵型扭曲向列型液晶单元和出射侧偏振片的液晶光阀装置中，在入射侧偏光板和液晶单元之间设置两个相位差板。 两个相位差板的光轴彼此垂直，并且其中一个倾斜一个角度，从而由液晶单元引起的相位差由两相差板产生的相位差补偿 。

公开(公告)号：US06697084B1

公开(公告)日：2004-02-24

申请号：US09517651

申请日：2000-03-03

申请人： Hideki Ohmae ,  Hisakazu Hitomi ,  Adam J. Kunzman

发明人： Hideki Ohmae ,  Hisakazu Hitomi ,  Adam J. Kunzman

IPC分类号： G09G510

CPC分类号： G09G3/2022 ,  G09G3/2014 ,  G09G3/346 ,  G09G2310/0235 ,  G09G2320/0261

摘要： A tone display method which prevents degradation in image quality of moving images when the subfield method is utilized without an increase in cost. When tone display is performed with 256 tones with respect to one certain color, in each frame, segments 1 to 6 in time are set corresponding to the plural time-shared time bands of the color and each segment includes one or several subfields (sf). In each case, as the tone is increased by 42 (or 43) for segments 1 through 6, sequentially, the subfields in the segment being lit so that the tone is increased continuously. In each segment, the display is performed mostly according to the binary method for the subfields

摘要翻译： 一种在不增加成本的情况下利用子场方法来防止运动图像的图像质量劣化的色调显示方法。 当相对于一种特定颜色执行256个色调的色调显示时，在每个帧中，时间上的片段1至6被设置为对应于颜色的多个时间共享时间带，并且每个片段包括一个或几个子字段（sf） 。 在每种情况下，随着音调对于片段1至6而增加42（或43），片段中的子字段被点亮，使得音调连续增加。 在每个段中，显示主要根据子场的二进制方式进行

公开(公告)号：US5576870A

公开(公告)日：1996-11-19

申请号：US230823

申请日：1994-04-21

申请人： Hideki Ohmae

发明人： Hideki Ohmae

IPC分类号： G02F1/1337 ,  H04N9/31 ,  G02F1/13

CPC分类号： H04N9/3105 ,  G02F1/133753 ,  G02F2001/133757 ,  G02F2203/22

摘要： A liquid crystal display panel includes a first substrate and a second substrate, at least one of which possesses light transmissivity, each having an electrode layer formed thereon, the electrode layers confronting each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate, divided into plural regions, and including liquid crystal molecules. The liquid crystal molecules are oriented in the same direction in each of first regions, and in a different direction in second regions each located between two adjacent first regions. The second regions are spaced at a regular periodicity. Without an electric field applied to the liquid crystal layer, the different orientations of the liquid crystal molecules create differences in the refractive indices at which the light is transmitted so as to serve as a phase grating the diffracts incident light. When an electric field is applied, the difference in the refractive indices decreases, and the incident light is not diffracted but propagates as is through the panel. The liquid crystal display panel may be incorporated into a projection display apparatus having a light source and projection lens.

摘要翻译： 液晶显示面板包括第一基板和第二基板，其中至少一个具有透光性，每个具有形成在其上的电极层，彼此面对的电极层和夹在第一基板和第二基板之间的液晶层 第二基板，分为多个区域，并且包括液晶分子。 液晶分子在每个第一区域中沿相同的方向取向，并且在第二区域中的不同方向上，每个位于两个相邻的第一区域之间。 第二区域以规则的周期间隔。 在没有施加到液晶层的电场的情况下，液晶分子的不同取向产生光透射的折射率差，从而用作衍射入射光的相位光栅。 当施加电场时，折射率差减小，入射光不会衍射，而是通过面板传播。 液晶显示面板可以结合到具有光源和投影透镜的投影显示装置中。

公开(公告)号：US07004604B2

公开(公告)日：2006-02-28

申请号：US10706007

申请日：2003-11-13

申请人： Hideki Ohmae ,  Mitsuhiro Wada ,  Kazunori Tanabe ,  Shigeru Aruga ,  Hirokazu Sakaguchi ,  Hisatoshi Shimose

发明人： Hideki Ohmae ,  Mitsuhiro Wada ,  Kazunori Tanabe ,  Shigeru Aruga ,  Hirokazu Sakaguchi ,  Hisatoshi Shimose

IPC分类号： F21V11/16

CPC分类号： H04N9/3114 ,  F21S10/007 ,  G02B7/006 ,  G02B26/008 ,  H04N5/7441 ,  H04N9/3141 ,  H04N9/3144

摘要： A projection display device includes a condensing unit and a shading unit. The condensing unit condenses light emitted from a light source to form a condensed spot on a color wheel. The shading unit, when a size of the condensed spot on the color wheel has increased due to an increase in light emission of the light source, shades a portion of the light passing through the color wheel corresponding to the increased size.

摘要翻译： 投影显示装置包括聚光单元和遮光单元。 冷凝单元将从光源发射的光凝结成在色轮上形成凝聚点。 遮光单元当由于光源的发光增加而使色轮上的聚光点的尺寸增加时，阴影部分对应于增大的尺寸遮挡通过色轮的光的一部分。

公开(公告)号：US20090201319A1

公开(公告)日：2009-08-13

申请号：US12375190

申请日：2007-09-18

申请人： Hiroyasu Makino ,  Toshikazu Wakabayashi ,  Hideki Ohmae

发明人： Hiroyasu Makino ,  Toshikazu Wakabayashi ,  Hideki Ohmae

IPC分类号： G09G5/10

CPC分类号： G09G3/293 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/294 ,  G09G3/296 ,  G09G3/2965 ,  G09G2310/066 ,  G09G2320/0271 ,  G09G2320/066 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/16

摘要： The aim is to improve the display capability of a PDP at lower gray scale levels by driving the PDP in a manner to adjust the luminance of Gray Scale 1 to an appropriate level. According to the drive method, one TV field is divided into a plurality of subfields SF 1, SF 2 . . . each having a reset period, an address period, and a sustain period. During the address period of SF 1, the sustain electrodes are held at a voltage (potential) Ve1. During the address period in SF 2 and the subsequent subfields, the sustain electrodes are held at a voltage (Ve+Ve2) The voltage Ve1 is higher than the ground voltage and lower than the voltage (Ve+Ve2).

摘要翻译： 目的是通过以将灰度1的亮度调整到适当水平的方式驱动PDP来提高较低灰度级的PDP的显示能力。 根据驱动方法，一个TV场被分成多个子场SF 1，SF 2。 。 。 每个具有复位周期，地址周期和维持周期。 在SF1的寻址周期期间，维持电极保持在电压（电位）Ve1。 在SF 2和后续子场的寻址周期期间，维持电极保持在电压（Ve + Ve2）。电压Ve1高于接地电压并低于电压（Ve + Ve2）。

公开(公告)号：US06755554B2

公开(公告)日：2004-06-29

申请号：US09864333

申请日：2001-05-25

申请人： Hideki Ohmae ,  Mitsuhiro Wada ,  Kazunori Tanabe ,  Shigeru Aruga ,  Hirokazu Sakaguchi ,  Hisatoshi Shimose

发明人： Hideki Ohmae ,  Mitsuhiro Wada ,  Kazunori Tanabe ,  Shigeru Aruga ,  Hirokazu Sakaguchi ,  Hisatoshi Shimose

IPC分类号： F21V910

CPC分类号： H04N9/3114 ,  F21S10/007 ,  G02B7/006 ,  G02B26/008 ,  H04N5/7441 ,  H04N9/3141 ,  H04N9/3144

摘要： A field sequential color display device includes a color wheel assembly. The color wheel assembly has a color wheel which is divided into a plurality of color regions and a motor for rotating the color wheel. The motor contains a sensor for detecting rotation of the motor and the sensor outputs at least one pulse per one revolution of the motor. The color wheel assembly also has a spatial light modulator for displaying image data that is driving in synchronization with the pulse output by the sensor.

摘要翻译： 场顺序彩色显示装置包括色轮组件。 色轮组件具有被分成多个颜色区域的色轮和用于旋转色轮的电动机。 电机包含用于检测电动机旋转的传感器，传感器每转一圈输出至少一个脉冲。 色轮组件还具有用于显示与传感器输出的脉冲同步驱动的图像数据的空间光调制器。

公开(公告)号：US06275271B1

公开(公告)日：2001-08-14

申请号：US09518649

申请日：2000-03-03

申请人： Hisakazu Hitomi ,  Hideki Ohmae ,  Adam J. Kunzman

发明人： Hisakazu Hitomi ,  Hideki Ohmae ,  Adam J. Kunzman

IPC分类号： H04N912

CPC分类号： G09G3/34 ,  G09G3/2018 ,  G09G3/2029 ,  G09G3/346 ,  G09G2310/0235 ,  G09G2320/0261 ,  G09G2320/0266 ,  H04N9/3114 ,  H04N2005/7466

摘要： A tone display method is provided that can prevent image quality deterioration of the dynamic image and can avoid a cost increase. When an image with 256 tones is displayed, one field is divided into 37 subfields for one color. Among the 8 bits corresponding to the 256 tones, the six high-order bits from the third bit are displayed by means of time width modulation using 35 subfields SF3-SF37 having weights of ““4” and “8”. The two low-order bits are displayed on a binary base using two subfields SF1 and SF2 whose weights are “'1” and “2”, respectively.

摘要翻译： 提供了可以防止动态图像的图像质量劣化并且可以避免成本增加的色调显示方法。 当显示256色调的图像时，一个场分为37个子场，一个颜色。 在对应于256个音调的8位中，通过使用具有权重“”4“和”8“的35个子场SF3-SF37的时间宽度调制来显示来自第三位的六个高位， 分别使用权重为“1”和“2”的两个子字段SF1和SF2在二进制基础上显示顺序位。