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1. 发明授权

US5490006A Liquid crystal light valve apparatus with a pair of non-parallel phase difference plates 失效
标题翻译：具有一对非平行相位差板的液晶光阀装置
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。

2. 发明授权

US5610735A Light scattering light valve projection apparatus 失效
标题翻译：光散射光阀投影仪
公开(公告)号：US5610735A
公开(公告)日：1997-03-11
申请号：US249623
申请日：1994-05-26
申请人： Hideki Ohmae , Hiroshi Takahara
发明人： Hideki Ohmae , Hiroshi Takahara
IPC分类号： G02F1/1334 , H04N5/74 , G02F1/1335 , G02F1/1333
CPC分类号： H04N5/7441 , G02F1/1334
摘要： A light valve projection apparatus includes a light source, a light valve used for forming optical images in response to a change in light scattering conditions in the light valve of light irradiated from the light source, a projection lens for projecting the optical images on a screen, and a shield for shielding the optical images formed at or near a pupil of the projection lens. If the brightness of light exiting from the light valve, which is in a light scattering state, in a direction tilted by .theta. degrees from a normal dissection of the light valve is assumed to be half as bright as the light outgoing in the normal direction at .theta..sub.1/2, .theta..sub.1/2 of the light valve is less than 23.degree.. The light valve may be a polymer dispersion liquid crystal display panel. When the polymer dispersion liquid crystal display panel is in a transparent state, light transmitted through the liquid crystal display panel is shielded by the shield, thus showing a black display on a screen. When the polymer dispersion liquid crystal display panel is in a light scattering state, light is scattered by the panel so that images formed in the panel are enlarged and projected by way of the projection lens onto the screen, thereby showing a bright white display.
摘要翻译：光阀投影装置包括光源，用于响应于从光源照射的光的光阀中的光散射条件的变化而形成光学图像的光阀，用于将光学图像投影在屏幕上的投影透镜以及用于屏蔽形成在投影透镜的瞳孔处或附近的光学图像的屏蔽件。如果从与光阀的正常解剖倾斜θ度的方向从光阀散射状态出射的光的亮度假定为与正常方向出射的光一样亮光阀的θ+ E，fra 1/2 + EE，θ+ E，fra 1/2 + EE小于23°。光阀可以是聚合物分散液晶显示面板。当聚合物分散液晶显示面板处于透明状态时，透过液晶显示面板的光被屏蔽屏蔽，从而在屏幕上显示黑色显示。当聚合物分散液晶显示面板处于光散射状态时，光被面板散射，使得在面板中形成的图像通过投影透镜放大并投射到屏幕上，从而显示出明亮的白色显示。

3. 发明授权

US06697084B1 Tone display method 有权
标题翻译：色调显示方式
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

4. 发明授权

US5875008A Liquid crystal panel and projection display with use of liquid crystal panel 失效
标题翻译：液晶面板和投影显示使用液晶面板
公开(公告)号：US5875008A
公开(公告)日：1999-02-23
申请号：US794855
申请日：1997-02-05
申请人： Hiroshi Takahara , Hideki Ohmae , Yoshito Miyatake , Mitsuhiro Wada
发明人： Hiroshi Takahara , Hideki Ohmae , Yoshito Miyatake , Mitsuhiro Wada
IPC分类号： G02F1/1333 , G02F1/1334 , G02F1/1335 , G02F1/1339 , H04N9/31 , G03B21/26
CPC分类号： H04N9/3105 , G02F1/133345 , G02F1/1334 , G02F1/133526 , H04N9/3152 , H04N9/317 , G02F1/133502 , G02F1/13394 , G02F2203/02 , G02F2203/055
摘要： In an optical system phase device such as .lambda./2 plate or a .lambda./4 plate is used to convert S polarization to P polarization and vice versa. In the projection display, a white light emitted from a light source is separated by a color separation optical system, including dichroic mirrors or a dichroic prism, into three primary colors which are modulated by optical modulation elements. Then, the modulated lights are synthesized by a color synthesis optical system and projected by a projection element onto a screen. When appropriate plates are inserted appropriately in the optical system of the projection display, the conversion between S and P polarization occurs and an optical bandwidth becomes narrow, and color purity can be improved. A thick transparent plate is preferably adhered to the optical modulation element. A light absorption film is applied to an ineffective plane of the transparent plate. The phase device is preferably inserted between an optical modulation element and a transparent plate or the like to improve contrast. The invention can be applied to liquid crystal panels such as liquid crystal/resin display panels, light beam writing type display panel or micro mirror display panel. Preferably, the phase device is set to be rotatable so as to adjust contrast appropriately.
摘要翻译：在光学系统中，使用诸如λ/ 2板或λ/ 4板的相位装置将S偏振转换为P偏振，反之亦然。在投影显示中，由光源发出的白光由包括分色镜或二向色棱镜的分色光学系统分离成由光调制元件调制的三原色。然后，调制光由彩色合成光学系统合成并由投影元件投影到屏幕上。当在投影显示器的光学系统中适当地插入适当的板时，发生S和P偏振之间的转换，并且光学带宽变窄，并且可以提高色纯度。优选将厚的透明板粘附到光调制元件。将光吸收膜施加到透明板的无效平面上。相位装置优选地插入在光调制元件和透明板等之间以改善对比度。本发明可以应用于液晶/树脂显示面板，光束写入型显示面板或微镜显示面板等液晶面板。优选地，相位装置被设置为可旋转的，以便适当地调节对比度。

5. 发明授权

US5576870A Liquid crystal display panel having a phase grating formed of liquid crystal molecules 失效
标题翻译：具有由液晶分子形成的相位光栅的液晶显示面板
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。

6. 发明授权

US07004604B2 Sequential color display device including light shading means 失效
标题翻译：连续彩色显示装置，包括遮光装置
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。

7. 发明授权

US6005651A Display panel and projection display system with use of display panel 失效
标题翻译：显示面板和投影显示系统使用显示面板
公开(公告)号：US6005651A
公开(公告)日：1999-12-21
申请号：US586418
申请日：1996-01-16
申请人： Hiroshi Takahara , Hideki Ohmae , Hideaki Mochizuki
发明人： Hiroshi Takahara , Hideki Ohmae , Hideaki Mochizuki
IPC分类号： G02F1/1334 , G02F1/1335 , G02F1/1343 , G02F1/1333 , G02F1/136 , G02F1/137
CPC分类号： G02F1/133502 , G02F1/1334 , G02F1/133512 , G02F1/133553
摘要： In a display panel, a first substrate is opposed to a second substrate and interposing a liquid crystal/resin composite layer. If the display panel is a transmission type display, a film for absorbing light is formed on a black matrix and between pixel electrodes. If the display panel is a reflection type display, a film for absorbing light is formed between reflection electrodes. Further, a counterelectrode is made from a multi-layer film of dielectric films and a transparent electrically conductive film for preventing reflection. The film for absorbing light includes pigments which can absorb light modulated by the liquid crystal/resin composite layer. By using the display panel, a projection display system of high contrast and high brightness can be constructed.
摘要翻译：在显示面板中，第一基板与第二基板相对并插入液晶/树脂复合层。如果显示面板是透射型显示器，则在黑矩阵和像素电极之间形成用于吸收光的膜。如果显示面板是反射型显示器，则在反射电极之间形成吸收光的膜。此外，反电极由介电膜的多层膜和用于防止反射的透明导电膜制成。用于吸收光的膜包括可吸收由液晶/树脂复合层调制的光的颜料。通过使用显示面板，可以构造出高对比度和高亮度的投影显示系统。

8. 发明授权

US5737050A Light valve having reduced reflected light, high brightness and high contrast 失效
标题翻译：光阀具有降低的反射光，高亮度和高对比度
公开(公告)号：US5737050A
公开(公告)日：1998-04-07
申请号：US586421
申请日：1996-01-16
申请人： Hiroshi Takahara , Hideki Ohmae
发明人： Hiroshi Takahara , Hideki Ohmae
IPC分类号： G02F1/1333 , G02F1/1334 , G02F1/1335
CPC分类号： G02F1/1334 , G02F1/1333 , G02F1/133502 , G02F1/133526 , G02F1/133512 , G02F1/133553
摘要： In a light valve, a liquid crystal layer made of liquid crystal/resin composite is interposed between a transparent substrate with a counterelectrode and a reflection substrate with reflection electrodes. The size of the transparent substrate is designed so that the light modulated by the liquid crystal layer is prevented from again entering into the liquid crystal layer after reflected at an interface of the transparent substrate with air. The transparent substrate may be combined with a transparent plate or flat concave lens with a transparent coupling material. Each pixel has a reflection electrode and liquid crystal molecules above the reflection electrode are aligned according to the signals supplied to thin film transistors. The counterelectrode is formed as a multi-layer film of dielectric films and a transparent electrically conductive film. The dielectric films are made of a material having a refractive index of 1.6-1.8, and the optical thickness of the dielectric films is .lambda./4 while that of the transparent electrically conductive film is .lambda./2. Thus, the reflection of light is prevented by the interference in the multi-layer film. By using the light valve apparatus, the incident light entering from the side of the counterelectrode is scattered or it is transmitted through the liquid crystal layer, reflected by the reflection electrodes and leaves through the counterelectrode. By using the light valve apparatus in a projection display system, an image of high brightness and high contrast can be realized.
摘要翻译：在光阀中，在具有反电极的透明基板和具有反射电极的反射基板之间插入由液晶/树脂复合体制成的液晶层。透明基板的尺寸被设计成使得在透明基板与空气的界面反射之后防止由液晶层调制的光再次进入液晶层。透明基板可以与具有透明耦合材料的透明板或平凹透镜组合。每个像素具有反射电极，并且反射电极上方的液晶分子根据提供给薄膜晶体管的信号进行对准。反电极形成为介电膜和透明导电膜的多层膜。电介质膜由折射率为1.6-1.8的材料制成，电介质膜的光学厚度为λ/ 4，而透明导电膜的光学厚度为λ/ 2。因此，通过多层膜的干涉来防止光的反射。通过使用光阀装置，从反电极侧入射的入射光被散射，或透过液晶层，被反射电极反射并离开反电极。通过在投影显示系统中使用光阀装置，可以实现高亮度和高对比度的图像。

9. 发明申请

US20090201319A1 PLASMA DISPLAY PANEL DRIVE METHOD AND PLASMA DISPLAY PANEL DEVICE 审中-公开
标题翻译：等离子显示面板驱动方法和等离子显示面板装置
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）。

10. 发明授权

US06755554B2 Color wheel assembly and color sequential display device using the same, color wheel unit and color sequential display device using the same, and color sequential display device 失效
标题翻译：色轮组件和使用其的彩色顺序显示装置，色轮单元和使用其的彩色顺序显示装置，以及彩色顺序显示装置
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。

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