公开(公告)号：US08517541B2

公开(公告)日：2013-08-27

申请号：US13049953

申请日：2011-03-17

申请人： Takayuki Kimoto ,  Takaaki Gyoten ,  Hiroshi Kitano

发明人： Takayuki Kimoto ,  Takaaki Gyoten ,  Hiroshi Kitano

IPC分类号： G03B21/20

CPC分类号： G03B21/16

摘要： A projection image display device has a plurality of light sources, a phosphor layer that emits light through excitation by at least any one of the light sources, an optical section, a temperature detector, a light-source intensity controller, an amplitude controller, a luminance controller. The optical section determines an optical path of light emitted from the light sources and the phosphor layer. The temperature detector directly or indirectly detects temperature of the phosphor layer or of the periphery of the phosphor layer. The light-source intensity controller controls intensity of an excitation light source that excites the phosphor layer. The amplitude controller controls the amplitude of a projection image signal. The luminance controller controls luminance of projection images by switching the light-source intensity controller and the amplitude controller according to a detected temperature.

摘要翻译： 投影图像显示装置具有多个光源，通过至少任一个光源的激发而发光的荧光体层，光学部，温度检测器，光源强度控制器，振幅控制器， 亮度控制器。 光学部分确定从光源和荧光体层发射的光的光路。 温度检测器直接或间接地检测荧光体层或荧光体层周围的温度。 光源强度控制器控制激发荧光体层的激发光源的强度。 幅度控制器控制投影图像信号的幅度。 亮度控制器通过根据检测到的温度切换光源强度控制器和振幅控制器来控制投影图像的亮度。

公开(公告)号：US20110242496A1

公开(公告)日：2011-10-06

申请号：US13049953

申请日：2011-03-17

申请人： Takayuki KIMOTO ,  Takaaki Gyoten ,  Hiroshi Kitano

发明人： Takayuki KIMOTO ,  Takaaki Gyoten ,  Hiroshi Kitano

IPC分类号： G03B21/14

CPC分类号： G03B21/16

摘要： A projection image display device has a plurality of light sources, a phosphor layer that emits light through excitation by at least any one of the light sources, an optical section, a temperature detector, a light-source intensity controller, an amplitude controller, a luminance controller. The optical section determines an optical path of light emitted from the light sources and the phosphor layer. The temperature detector directly or indirectly detects temperature of the phosphor layer or of the periphery of the phosphor layer. The light-source intensity controller controls intensity of an excitation light source that excites the phosphor layer. The amplitude controller controls the amplitude of a projection image signal. The luminance controller controls luminance of projection images by switching the light-source intensity controller and the amplitude controller according to a detected temperature.

摘要翻译： 投影图像显示装置具有多个光源，通过至少任一个光源的激发而发光的荧光体层，光学部，温度检测器，光源强度控制器，振幅控制器， 亮度控制器。 光学部分确定从光源和荧光体层发射的光的光路。 温度检测器直接或间接地检测荧光体层或荧光体层周围的温度。 光源强度控制器控制激发荧光体层的激发光源的强度。 幅度控制器控制投影图像信号的幅度。 亮度控制器通过根据检测到的温度切换光源强度控制器和振幅控制器来控制投影图像的亮度。

公开(公告)号：US20110234647A1

公开(公告)日：2011-09-29

申请号：US13037382

申请日：2011-03-01

申请人： Takayuki Kimoto ,  Takaaki Gyoten ,  Yoshimasa Fushimi

发明人： Takayuki Kimoto ,  Takaaki Gyoten ,  Yoshimasa Fushimi

IPC分类号： G09G5/10

CPC分类号： G09G3/002 ,  G09G3/3413 ,  G09G3/346 ,  G09G2310/0235 ,  G09G2320/0261 ,  H04N9/3111 ,  H04N9/3155

摘要： An image display device includes a plurality solid-state light sources, a modulator configured to modulate light from a plurality of solid-state light sources, and an image display device configured to generate from a frame of image data, a plurality of subframes each further divided into subfields, and to display the plurality of subframes. The modulator turns off light output from all the solid-state light sources for the duration of one or more of the plurality of subframes, whereby it is possible to reduce motion blur arising from a hold-type display device, in which after-images remain on the retina of a person's eyes when viewing moving objects.

摘要翻译： 图像显示装置包括多个固态光源，调制器，用于调制来自多个固态光源的光;以及图像显示装置，被配置为从图像数据的帧生成多个子帧 分为子场，并显示多个子帧。 在多个子帧中的一个或多个持续时间内，调制器关闭来自所有固态光源的光输出，由此可以减少由保持型显示装置产生的运动模糊，其中保留图像后 在观察移动物体时在人眼的视网膜上。

公开(公告)号：US08836732B2

公开(公告)日：2014-09-16

申请号：US13037382

申请日：2011-03-01

申请人： Takayuki Kimoto ,  Takaaki Gyoten ,  Yoshimasa Fushimi

发明人： Takayuki Kimoto ,  Takaaki Gyoten ,  Yoshimasa Fushimi

IPC分类号： G09G5/10 ,  G09G3/00 ,  H04N9/31 ,  G09G3/34

CPC分类号： G09G3/002 ,  G09G3/3413 ,  G09G3/346 ,  G09G2310/0235 ,  G09G2320/0261 ,  H04N9/3111 ,  H04N9/3155

摘要： An image display device includes a plurality solid-state light sources, a modulator configured to modulate light from a plurality of solid-state light sources, and an image display device configured to generate from a frame of image data, a plurality of subframes each further divided into subfields, and to display the plurality of subframes. The modulator turns off light output from all the solid-state light sources for the duration of one or more of the plurality of subframes, whereby it is possible to reduce motion blur arising from a hold-type display device, in which after-images remain on the retina of a person's eyes when viewing moving objects.

摘要翻译： 图像显示装置包括多个固态光源，调制器，用于调制来自多个固态光源的光;以及图像显示装置，被配置为从图像数据的帧生成多个子帧 分为子场，并显示多个子帧。 在多个子帧中的一个或多个持续时间内，调制器关闭来自所有固态光源的光输出，由此可以减少由保持型显示装置产生的运动模糊，其中保留图像后 在观察移动物体时在人眼的视网膜上。

公开(公告)号：US06422704B1

公开(公告)日：2002-07-23

申请号：US09344187

申请日：1999-06-24

申请人： Takaaki Gyoten ,  Masahiro Kawashima ,  Syunsuke Kimura

发明人： Takaaki Gyoten ,  Masahiro Kawashima ,  Syunsuke Kimura

IPC分类号： G03D2114

CPC分类号： H04N17/04 ,  H04N9/317 ,  H04N9/3194

摘要： A projector 100 projects an image onto a screen 200 by having light from a light source 111 pass through light valves 108˜110 corresponding to RGB colors and a projection lens 101. A special pattern is displayed on the light valves 108˜110 so that an image of the special pattern is projected onto the screen 200. The projector includes a half mirror 112 that directs light, which has been reflected back off this image on the screen 200 and back through the light valves 108˜110, toward the collective lens 113, and a light detecting element 114 for detecting the intensity of the light collected by the collective lens 113. Based on the detected intensity, the microcomputer 116 automatically adjusts the projection parameters of the projector 100.

摘要翻译： 投影仪100通过使来自光源111的光通过对应于RGB颜色的光阀108〜110和投影透镜101，将图像投影到屏幕200上。在光阀108〜110上显示特殊图案，使得 特殊图案的图像被投影到屏幕200上。投影仪包括半反射镜112，其将已经从屏幕200上反射回来的光反射回到通过光阀108〜110的光，朝向集体透镜113 以及用于检测由集体透镜113收集的光的强度的光检测元件114.基于检测到的强度，微型计算机116自动调节投影仪100的投影参数。

公开(公告)号：US20090167193A1

公开(公告)日：2009-07-02

申请号：US12299941

申请日：2007-11-27

申请人： Masakazu Ogasawara ,  Takaaki Gyoten

发明人： Masakazu Ogasawara ,  Takaaki Gyoten

IPC分类号： H05B37/02

CPC分类号： H04N9/3123 ,  G03B21/2053 ,  G09G3/2014 ,  G09G3/3406 ,  G09G2360/145 ,  H04N9/3155

摘要： An image display apparatus which represents a grayscale by pulse-width modulation driving of a display element includes: a light source which illuminates the display element; a light source driving part which drives the light source; a photodetector which detects the emission intensity of light emitted from the light source; a sample-and-holder which obtains the emission intensity of the light source by the photodetector at a predetermined timing in a light emission period of the light source; and a compensation current generating part which (i) obtains the manner in which the emission intensity of the light source changes on the basis of a first sample value obtained at a first timing by the sample-and-holder and of a second sample value obtained at a second timing by the sample-and-holder or a predetermined target value of the emission intensity; and (ii) controls the light source driving part for compensating the emission intensity of the light source on the basis of the obtained manner in which the emission intensity changes.

摘要翻译： 通过显示元件的脉宽调制驱动来表示灰阶的图像显示装置包括：照亮显示元件的光源; 驱动光源的光源驱动部; 光检测器，其检测从光源发射的光的发射强度; 采样保持器，其在光源的发光期间中以预定的时刻由光电检测器获得光源的发光强度; 以及补偿电流产生部分，其（i）基于由所述采样和持有者在第一定时获得的第一样本值和获得的第二样本值来获得所述光源的发光强度变化的方式 在第二时间由采样持有者或发射强度的预定目标值; 以及（ii）基于所获得的发光强度变化的方式来控制用于补偿光源的发光强度的光源驱动部。

公开(公告)号：US06753923B2

公开(公告)日：2004-06-22

申请号：US09940633

申请日：2001-08-29

申请人： Takaaki Gyoten

发明人： Takaaki Gyoten

IPC分类号： H04N5262

CPC分类号： H04N9/3147

摘要： A video projecting system includes two video projectors. Each video projector has a scaling processing circuit that generates a scaled video signal from an incoming video signal, the scaled video signal representing a partial image of a predetermined size, a luminance adjustment circuit that generates from the scaled video signal from the scaling processing circuit an adjusted video signal representing the partial image having a reduced luminance in a predetermined region of the partial image, and a display device that generates a partial image based on the adjusted video signal which is outputted from the luminance adjustment circuit. The partial image generated by the display device is projected via an optical system onto a screen, so that respective partial images partially overlap each other, thereby creating one stitched image. Thus, a compact and inexpensive video projecting system which can eliminate the need of manual readjustment of a plurality of video projectors is provided.

摘要翻译： 视频投影系统包括两台视频投影机。 每个视频投影仪具有缩放处理电路，其生成来自输入视频信号的缩放视频信号，缩放视频信号表示预定大小的部分图像，亮度调节电路，其从缩放处理电路的缩放视频信号生成 表示在部分图像的预定区域中具有降低的亮度的部分图像的调整后视频信号，以及基于从亮度调整电路输出的经调整的视频信号生成部分图像的显示装置。 由显示装置生成的部分图像经由光学系统投射到屏幕上，使得各部分图像部分地彼此重叠，从而形成一个缝合图像。 因此，提供了可以消除对多个视频投影仪的手动重新调整的需要的紧凑而廉价的视频投影系统。

公开(公告)号：US08371701B2

公开(公告)日：2013-02-12

申请号：US12697670

申请日：2010-02-01

申请人： Akira Ueda ,  Kentaro Kato ,  Takaaki Gyoten

发明人： Akira Ueda ,  Kentaro Kato ,  Takaaki Gyoten

IPC分类号： G03B21/14

CPC分类号： G03B21/2026 ,  G03B21/2053

摘要： The polarity of a voltage applied to the electrode pair is inverted by a changing signal generated at every boundary area of each filter color of the color wheel, and also in the blue color region (B) (a, b. c). Herewith, time during which the lamp electrode is positive and that negative is equal to each other every time the color wheel makes two rotations (T), thereby maintaining the heat load to be evenly distributed between both of the electrodes.

摘要翻译： 施加到电极对的电压的极性通过在色轮的每个滤色器的每个边界区域以及蓝色区域（B）（a，b.c）中产生的变化信号而反转。 因此，在每次色轮进行两次旋转（T）时，灯电极为正的时间和负值相等的时间，从而保持热负荷均匀地分布在两个电极之间。

公开(公告)号：US07607784B2

公开(公告)日：2009-10-27

申请号：US10587751

申请日：2005-01-27

申请人： Yusaku Shimaoka ,  Hiroshi Miyai ,  Takaaki Gyoten

发明人： Yusaku Shimaoka ,  Hiroshi Miyai ,  Takaaki Gyoten

IPC分类号： G03B21/00 ,  G03B21/20 ,  H04N9/12

CPC分类号： G09G3/3413 ,  G09G3/2025 ,  G09G2310/0235 ,  G09G2320/0633

摘要： In a light source emitting single-color light represented by a solid light source such as a light emitting diode, a light output is increased while a color reproducibility is maintained. A red, a green, and a blue light emitting diode are controlled so that a first light emitting step of making the red light emitting diode emit light in a first light emission period, a second light emitting step of making the green light emitting diode emit light in a second light emission period, a third light emitting step of making the blue light emitting diode emit light in a third light emission period, and a fourth light emitting step of making the red light emitting diode, the green light emitting diode and the blue light emitting diode emit light at the same time in a fourth light emission period are carried out for display of one image.

摘要翻译： 在发出由诸如发光二极管的固体光源表示的单色光的光源中，光输出增加，同时保持颜色再现性。 控制红色，绿色和蓝色发光二极管，使得在第一发光时段内使红色发光二极管发光的第一发光步骤，使绿色发光二极管发射的第二发光步骤 在第二发光周期中的光，在第三发光时段中使蓝色发光二极管发光的第三发光步骤，以及使红色发光二极管，绿色发光二极管和 蓝色发光二极管在第四发光周期中同时发光以进行一个图像的显示。

公开(公告)号：US07093941B2

公开(公告)日：2006-08-22

申请号：US10311925

申请日：2002-04-19

申请人： Masahiro Kawashima ,  Hitoshi Noda ,  Takaaki Gyoten

发明人： Masahiro Kawashima ,  Hitoshi Noda ,  Takaaki Gyoten

IPC分类号： G03B21/20 ,  G02F1/13357

CPC分类号： H04N5/74 ,  G09G3/3406 ,  G09G3/36 ,  G09G5/10 ,  G09G2320/0633 ,  G09G2320/0653 ,  G09G2320/066 ,  G09G2360/16 ,  H04N5/57 ,  H04N21/4318 ,  H04N21/44008

摘要： An APL detection unit detects the APL for each unit field time period of an input video signal, and a light source control data production unit produces, depending on the results of the APL detection, a light source control signal at a minimum level which can stably drive a light source when the APL is 0% up to a predetermined value A1, a light source control signal at a maximum level which can stably drive the light source when the APL is a predetermined value A2 up to 100%, and a light source control signal which dynamically varies depending on the APL when the APL is between the predetermined value A1 and the predetermined value A2, to drive the light source on the basis of the light source control signal. As a result, it is possible to mitigate the lack of a contrast feeling and the occurrence of a floating blackness, as well as to improve the reliability of the light source.

摘要翻译： APL检测单元检测输入视频信号的每个单位场时间段的APL，并且光源控制数据生成单元根据APL检测的结果产生可以稳定地进行最小水平的光源控制信号 当APL为0％直到预定值A1时驱动光源，当APL为预定值A2至100％时能够稳定地驱动光源的最大电平的光源控制信号，以及光源 当APL在预定值A1和预定值A2之间时，根据APL动态地变化的控制信号，以基于光源控制信号驱动光源。 结果，可以减轻对比度感觉的缺乏和漂浮黑色的发生，以及提高光源的可靠性。