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1. 发明专利

JP2009100171A Image processor, image display device, and image processing method 审中-公开
标题翻译：图像处理器，图像显示装置和图像处理方法
公开(公告)号：JP2009100171A
公开(公告)日：2009-05-07
申请号：JP2007268915
申请日：2007-10-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SOMEYA JUN , ASAMURA MASAKO , NAGASE AKIHIRO , KAGAWA SHUICHI
IPC分类号： H04N5/14 , G06T5/00 , H04N1/407 , H04N1/409
摘要： PROBLEM TO BE SOLVED: To provide an image processor capable of reducing quantization noise even in image signals continuously transmitted temporally, an image display device, and an image processing method. SOLUTION: An image signal B output from a gradation correction part 3 is input in a variation calculation part and a delay part of a gradation processing part 4. The variation calculation part calculates difference between the adjacent pixels of the input image signal B as variation G and outputs it to a variation limiting part. The variation limiting part generates variation H by limiting a value so that it is settled within a range indicated by threshold information F output from a gradation correction amount calculation part in the input variation G. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供即使在时间上连续传输的图像信号中也能够降低量化噪声的图像处理器，图像显示装置和图像处理方法。解决方案：从灰度校正部分3输出的图像信号B被输入到灰度处理部分4的变化计算部分和延迟部分中。变化计算部分计算输入图像信号B的相邻像素之间的差异作为变化G并将其输出到变化限制部分。变化限制部分通过限制一个值来产生变化H，使得它在由输入变量G中的灰度校正量计算部分输出的阈值信息F所指示的范围内被确定。（C）2009，JPO和INPIT

2. 发明专利

JP2008164749A Image display device and method 审中-公开
标题翻译：图像显示装置和方法
公开(公告)号：JP2008164749A
公开(公告)日：2008-07-17
申请号：JP2006351823
申请日：2006-12-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAMURO TAKAHIKO , SOMEYA JUN , KAGAWA SHUICHI
IPC分类号： G09G3/36 , G02F1/13 , G02F1/133 , G09G3/20 , G09G3/34
CPC分类号： H04N9/3155 , H04N9/3111
摘要： PROBLEM TO BE SOLVED: To prevent the gradation drop on a low gradation side when reverse gamma correction is performed in an image display device. SOLUTION: The image display device includes a light source (7) for changing the light emission intensity by adjusting the magnitude of a driving current, a light source driving means (5) for lighting the light source by passing the driving current to the light source (7), and a light valve (6) subjecting the light emitted from the light source to pulse width modulation for every pixel according to the video signal and projecting the light onto the modulated screen. The light source driving means (5) changes the magnitude of the driving current of the light source (7) in accordance with lapse of the time during each field period. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止在图像显示装置中执行反向伽马校正时在低灰度侧的灰度降低。解决方案：图像显示装置包括：用于通过调节驱动电流的大小来改变发光强度的光源（7）;通过使驱动电流通过驱动电流来点亮光源的光源驱动装置（5）光源（7）和光阀（6），根据视频信号使从光源发出的光对每个像素进行脉冲宽度调制，并将光投影到调制屏幕上。光源驱动装置（5）根据每个场周期中的时间流逝改变光源（7）的驱动电流的大小。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008145507A Projection type image display apparatus 审中-公开
标题翻译：投影类型图像显示设备
公开(公告)号：JP2008145507A
公开(公告)日：2008-06-26
申请号：JP2006329456
申请日：2006-12-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HARADA SHIGEKI , NAGAI TAKAYOSHI , SUGA IKURO , SUZUKI YOSHITERU , OKUMURA AKIRA , SOMEYA JUN , KOJIMA KUNIKO
IPC分类号： G03B21/00 , G09G3/20 , G09G3/34 , G09G3/36 , H04N9/31
摘要： PROBLEM TO BE SOLVED: To provide a projection type image display apparatus capable of increasing maximum luminance and a contrast ratio without increasing the power consumption of a light source.
SOLUTION: In the projection type image display apparatus for displaying an image by modulating light emitted from a light source (lamp 4) according to image data 1 by using a light modulation device (DMD 9) and projecting the modulated light to a screen 11, a time unit constituting the image data is divided into a light effective time t1 in which light can be expressed as an image on the screen 11 by the light modulation device and light ineffective time t2 in which light can not be expressed as an image on the screen 11 and supply power P1 to the light source in the light effective time t1 is made larger than supply power P2 to the light source in the light ineffective time t2.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不增加光源的功耗的情况下提高最大亮度和对比度的投影型图像显示装置。解决方案：在通过使用光调制装置（DMD 9）根据图像数据1调制从光源（灯4）发出的光来显示图像的投影型图像显示装置中，并将调制光投影到屏幕11，构成图像数据的时间单位被分为光有效时间t1，在该有效时间t1中，光可以通过光调制装置表示为屏幕11上的图像，并且光不能表示为光的无效时间t2 在光无效时间t2中，在光有效时间t1内的屏幕11上的图像和向光源的光源P1供给大于供给光P2。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2008026590A Image display device and method 有权
标题翻译：图像显示装置和方法
公开(公告)号：JP2008026590A
公开(公告)日：2008-02-07
申请号：JP2006199021
申请日：2006-07-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SOMEYA JUN , KAGAWA SHUICHI , YOSHII HIDEKI , SASAGAWA TOMOHIRO , SUGIURA HIROAKI
IPC分类号： G09G3/02 , G02B26/10 , G02B26/12 , G09G3/00 , H04N5/74
CPC分类号： G02B26/105
摘要： PROBLEM TO BE SOLVED: To display an image without irregularity even when the intensity of light beams emitted from a plurality of light emitting units fluctuates or the light emitting units have a defect to fail to emit light. SOLUTION: An image display device includes a light source that outputs laser beams Ls1 to Ls6 arrayed in a sub-scanning direction Ds, a light source driving unit for modulating the intensity of the laser beams Ls1 to Ls6 according to an inputted image data, a scanning unit for allowing the laser beams Ls1 to Ls6 to perform main scanning and sub scanning, an image display unit for receiving the laser beams Ls1 to Ls6 to display an image, and a control unit for controlling the scanning unit so as to allow the laser beams Ls1 to Ls6 to perform sub scanning once each time of performing main scanning. The moving distance of an irradiation position on the image display unit by one time of sub scanning in one frame period is a multiplication of an interval PL between two scanning lines adjoining in the sub-scanning direction Ds by a predetermined integer (for example, 1) smaller than the number of laser beams Ls1 to Ls6 arrayed in the sub-scanning direction Ds. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使当从多个发光单元发射的光束的强度波动或者发光单元具有不能发光的缺陷时，也可以不显示不规则的图像。解决方案：图像显示装置包括输出沿副扫描方向Ds排列的激光束Ls1〜Ls6的光源，根据输入图像调制激光束Ls1〜Ls6的强度的光源驱动部数据，用于允许激光束Ls1至Ls6执行主扫描和副扫描的扫描单元，用于接收激光束Ls1至Ls6以显示图像的图像显示单元，以及用于控制扫描单元的控制单元，允许每次执行主扫描时激光束Ls1至Ls6执行副扫描。图像显示单元中的照射位置的移动距离在一帧周期中通过副扫描一次是与副扫描方向Ds相邻的两条扫描线之间的间隔PL与预定整数（例如，1 ）小于沿副扫描方向Ds排列的激光束Ls1〜Ls6的数量。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007163647A Image display apparatus 审中-公开
标题翻译：图像显示设备
公开(公告)号：JP2007163647A
公开(公告)日：2007-06-28
申请号：JP2005357524
申请日：2005-12-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAGAWA SHUICHI , SOMEYA JUN , SUGIURA HIROAKI
IPC分类号： G09G3/36 , G02F1/13 , G02F1/133 , G09G3/20 , G09G3/34
CPC分类号： G09G3/3406 , G09G3/2003 , G09G3/34 , G09G2310/0235 , G09G2320/0633 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To provide an image display apparatus capable of flexibly adjusting maximum luminance and the balance of color reproducing areas in accordance with the characteristics of inputted image data, a using condition of the image display apparatus, or the like and capable of displaying a color image in suitable balance as to an image display apparatus in which an image of one frame is formed by a plurality of sub-frames.
SOLUTION: The image display apparatus is provided with: a light source (4) capable of emitting light having a different spectral distribution in each sub-frame; a sub-frame image data generation means (1) for generating sub-frame image data corresponding to the spectral distribution from input image data (R0, G0, B0) in each sub-frame; a light receiving type optical modulation means (5) for modulating light from the light source (4) in each pixel in accordance with the contents of the sub-frame image data; and a means (2) for controlling the spectral distribution of light from the light source (4) in each sub-frame while referring to control information (LC).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像显示装置，其能够根据输入的图像数据的特性，图像显示装置的使用条件等灵活地调整最大亮度和平衡色彩再现区域，以及能够以与多个子帧形成一帧的图像的图像显示装置相适应的平衡来显示彩色图像。解决方案：图像显示装置设置有：能够发射每个子帧中具有不同光谱分布的光的光源（4）; 子帧图像数据生成装置（1），用于从每个子帧中的输入图像数据（R0，G0，B0）生成对应于频谱分布的子帧图像数据; 光接收型光调制装置（5），用于根据子帧图像数据的内容调制来自每个像素中的光源（4）的光; 以及用于在参考控制信息（LC）的情况下控制来自每个子帧中的光源（4）的光的光谱分布的装置（2）。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007139936A Image processor, image display device and image processing method 有权
标题翻译：图像处理器，图像显示装置和图像处理方法
公开(公告)号：JP2007139936A
公开(公告)日：2007-06-07
申请号：JP2005331251
申请日：2005-11-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OKUDA NORITAKA , SOMEYA JUN
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , H04N1/407 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide an image processor and an image processing method capable of appropriately correcting an input image data based on a variation of a grayscale value between frames of input image data, and a temperature of a display panel or its neighborhood or its surroundings, and to provide an image display device.
SOLUTION: The image processor comprises: a previous frame image data output section 14 for outputting an image data D
p0 of a previous frame; a control signal generation section 11 for generating a control signal T
p1 based on a comparison result of a temperature data corresponding to a temperature detection signal of the display panel, with a reference temperature data; and an image data correction section 10 in which correction data are selected from a lookup table (LUT) according to temporal change of the grayscale value in each pixel, and based on the selected correction data and the control signal T
p1 , the grayscale value of the current image data D
i1 is corrected and thereby, an image data D
j1 after correction is generated. A bit number of the correction data held by the LUT is larger than that of the image data D
j1 after correction.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够基于输入图像数据的帧与显示面板或其显示面板的温度之间的灰度值的变化来适当地校正输入图像数据的图像处理器和图像处理方法附近或其周围环境，并提供图像显示装置。解决方案：图像处理器包括：前一帧图像数据输出部分14，用于输出先前帧的图像数据D p0 ; 基于与显示面板的温度检测信号对应的温度数据的比较结果与基准温度数据一起生成控制信号T p1 的控制信号生成部11; 以及图像数据校正部10，其中根据每个像素中的灰度值的时间变化从查找表（LUT）中选择校正数据，并且基于所选择的校正数据和控制信号T SB1， SB>，校正当前图像数据D i1 的灰度值，从而生成校正后的图像数据D j1 。校正后的LUT校正数据的位数大于图像数据D j1 的位数。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006245752A Image processor, image processing method, image display device, and image display method 有权
标题翻译：图像处理器，图像处理方法，图像显示装置和图像显示方法
公开(公告)号：JP2006245752A
公开(公告)日：2006-09-14
申请号：JP2005055729
申请日：2005-03-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMANAKA SATOSHI , OKUNO YOSHIAKI , SOMEYA JUN
IPC分类号： H04N1/407 , G06T5/00 , G06T5/20 , G09G3/20 , G09G5/36 , H04N1/409 , H04N5/20
CPC分类号： H04N1/407
摘要： PROBLEM TO BE SOLVED: To solve the problem that, when converting an analog image signal in which gradation varies slowly to digital image data, degradation of image quality due to quantization becomes prominent since the gradation varies stepwise by only one in the digital image data. SOLUTION: The image processor has a gradation level difference detector 6 which detects whether the gradation varies slowly or not to input image data of n-bits, and generates a gradation processing control signal C showing that a gradation level difference is included to the detected region; a bit shift processor 5 which shifts bits of the input image data of n-bits to high-order bits by α-bits, and generates image data of (n+α) bits; and a gradation processor 7 for generating the image data of (n+α) bits subjected to smoothing processing to the region, including the gradation level difference shown by the gradation processing control signal C of the image data of (n+α) bits generated by the bit shift processor 5. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题为了解决当将灰度级缓慢变化的模拟图像信号转换为数字图像数据时，由于量化而导致的图像质量的劣化变得突出，因为渐变仅仅在数字图像数据。解决方案：图像处理器具有灰度级差异检测器6，其检测灰度级是否缓慢地变化以输入n位的图像数据，并且生成灰度处理控制信号C，其表示灰度级差异被包括到检测区域; 位移处理器5，其通过α位将n位的输入图像数据的位移位到高位，并生成（n +α）位的图像数据; 以及灰度处理器7，用于生成对该区域进行平滑处理的（n +α）位的图像数据，包括由生成的（n +α）位的图像数据的灰度处理控制信号C所示的灰度级差通过位移处理器5。（C）2006，JPO＆NCIPI

8. 发明专利

JP2006235733A Image processor, image processing method, and image display device 有权
标题翻译：图像处理器，图像处理方法和图像显示装置
公开(公告)号：JP2006235733A
公开(公告)日：2006-09-07
申请号：JP2005045864
申请日：2005-02-22
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OKUNO YOSHIAKI , NAGASE AKIHIRO , SOMEYA JUN
IPC分类号： G06T5/00
CPC分类号： G06T3/403 , G06T5/003 , G06T2207/20192 , H04N1/4092
摘要： PROBLEM TO BE SOLVED: To provide an image processor which improves the deterioration of sharpness due to enlargement processing of an image and can attain enhancement of image quality and an image processing method. SOLUTION: The image processor and the image processing method perform; a 1st contour width compensation processing which compensates contour width by interpolation arithmetic operation using magnification control amount generated based on the contour width of the image data; enlargement processing to enlarge the image data of which contour width is compensated by the 1st contour width compensation processing; a 2nd contour width compensation processing which is similar to the 1st contour width compensation processing for enlarged image data; and a contour emphasis processing which emphasizes a contour section of the image data of which contour width is compensated by the 2nd contour width compensation processing. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像处理器，其可以改善由于图像的放大处理引起的锐度的劣化，并且可以获得图像质量的提高和图像处理方法。解决方案：图像处理器和图像处理方法执行; 第一轮廓宽度补偿处理，其使用基于图像数据的轮廓宽度生成的倍率控制量，通过插值算术运算来补偿轮廓宽度; 放大处理以通过第一轮廓宽度补偿处理来放大补偿轮廓宽度的图像数据; 第二轮廓宽度补偿处理类似于放大图像数据的第一轮廓宽度补偿处理; 以及轮廓强调处理，其强调通过第二轮廓宽度补偿处理来补偿轮廓宽度的图像数据的轮廓部分。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005352155A Image processing circuit for liquid crystal drive and image processing method for liquid crystal drive 有权
标题翻译：用于液晶驱动的图像处理电路和用于液晶驱动的图像处理方法
公开(公告)号：JP2005352155A
公开(公告)日：2005-12-22
申请号：JP2004172634
申请日：2004-06-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SOMEYA JUN , OKUDA NORITAKA
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N5/66
CPC分类号： G09G3/3648 , G09G2320/0252 , G09G2320/0261 , G09G2340/16
摘要： PROBLEM TO BE SOLVED: To provide an image processing circuit for liquid crystal drive capable of correcting an image data exactly and applying an appropriate correction voltage to a liquid crystal without producing influence on an error of coding/decoding even if a dynamic image is inputted, in the image processing circuit for liquid crystal driving in which the coding/decoding of the image data is performed in order to reduce capacity of a frame memory.
SOLUTION: In the image processing circuit for liquid crystal drive of the invention, difference between a first decoded image data which corresponds to the image data of a current frame and a second decoded image data which corresponds to the image data of forgoing one frame is calculated for each pixel and based on the difference, either of the image data of the current frame or the second decoded image data is selected for each pixel and the forgoing one frame image data is generated. Based on the forgoing one frame image data and the current frame image data, a grayscale value of the current frame image is corrected.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了提供能够精确地校正图像数据并且对液晶施加适当的校正电压而不会对编码/解码的误差产生影响的液晶驱动的图像处理电路，即使动态图像在进行图像数据的编码/解码的液晶驱动用图像处理电路中输入，以便降低帧存储器的容量。解决方案：在本发明的液晶驱动用图像处理电路中，对应于当前帧的图像数据的第一解码图像数据与对应于前一帧的图像数据的第二解码图像数据之间的差异对于每个像素计算帧，并且基于差异，针对每个像素选择当前帧的图像数据或第二解码图像数据中的任一个，并且生成前一帧图像数据。基于前一帧图像数据和当前帧图像数据，校正当前帧图像的灰度值。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004139096A Image processing circuit for liquid crystal drive, liquid crystal display device using the same, and image processing method 有权
公开(公告)号：JP2004139096A
公开(公告)日：2004-05-13
申请号：JP2003367011
申请日：2003-10-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SOMEYA JUN , YAMAKAWA MASAKI
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N7/24 , H04N19/00 , H04N19/423 , H04N19/59 , H04N19/625 , H04N19/63
摘要： PROBLEM TO BE SOLVED: To provide an image processing circuit for liquid crystal drive which can improve the response speed of liquid crystals by exactly correcting image data for determining the voltage to be impressed to the liquid crystals, and an image processing method. SOLUTION: In the image processing circuit for liquid crystal drive and the image processing method, encoded image data corresponding to image data of a present frame are generated by encoding the image data of the present frame and the image data of the present frame is corrected based on the encoded image data corresponding to the image data one frame before the present frame obtained by decoding the encoded image data with a period delay corresponding to one frame, and the image data of the present frame. COPYRIGHT: (C)2004,JPO

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