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    • 5. 发明申请
    • Transmissive color liquid crystal display device
    • 透射彩色液晶显示装置
    • US20060044495A1
    • 2006-03-02
    • US11203961
    • 2005-08-16
    • Hisao Arai
    • Hisao Arai
    • G02F1/1335
    • G02F1/133509G02F1/13363G02F2001/133562G02F2001/133638G02F2413/02G02F2413/07
    • A transmissive color liquid crystal display device includes a liquid crystal layer arranged a lower polarizing plate on a light source side and an upper polarizing plate on a display side, the liquid crystal layer changing a polarization plane of linearly polarized light having passed through the lower polarizing plate to adjust light transmittance, a color filter arranged between the liquid crystal layer and the upper polarizing plate, a 1/4 phase plate arranged between the upper polarizing plate and the color filter for rotating a polarization plane of external light passing through the upper polarizing plate and reflecting at the color filter to 90° permitting the upper polarizing plate to absorb the external light, and another 1/4 phase plate arranged beneath the color filter. Further, another transmissive color liquid crystal display device includes a liquid crystal layer arranged a lower polarizing plate on a light source side and an upper polarizing plate on a display side, the liquid crystal panel changing a polarization plane of linearly polarized light having passed through the lower polarizing plate to adjust light transmittance, a color filter arranged between the liquid crystal panel and the upper polarizing plate, and an ND filter arranged between the upper polarizing plate and the color filter.
    • 透射彩色液晶显示装置包括在光源侧配置下偏振片的液晶层和显示侧的上偏振片,所述液晶层改变通过下偏振光的线偏振光的偏振面 调整透光率的板,布置在液晶层和上偏振板之间的滤色器,配置在上偏振板和滤色器之间的1/4相位板,用于旋转通过上偏振光的外部光的偏振面 并且在滤色器处反射90°,允许上偏振片吸收外部光,另一个1/4相位板布置在滤色器下方。 此外,另一种透射彩色液晶显示装置包括在光源侧配置下偏振片的液晶层和显示侧的上偏振片,液晶面板改变已经通过的线偏振光的偏振面 下偏光板以调节透光率,布置在液晶面板和上偏振片之间的滤色器,以及布置在上偏振片和滤色器之间的ND滤色器。
    • 8. 发明授权
    • Image processing method and device
    • 图像处理方法及装置
    • US06731402B1
    • 2004-05-04
    • US09452130
    • 1999-12-01
    • Mitsuhiro UchidaHisao Arai
    • Mitsuhiro UchidaHisao Arai
    • H04N140
    • H04N1/6094H04N1/407
    • From a photosensitive material F, image data S1 is obtained together with the density Ds of the unexposed portion of the photosensitive material F. On the basis of this density Ds, the optimum characteristic curve for the photosensitive material F stored in the storing means 3 is modified by modifying means 4 to obtain a modified characteristic curve. In the storing means 3, a plurality of characteristic curves after the time lapse may be stored, and from these characteristic curves, a modified characteristic curve may be obtained. The modified characteristic curve is inputted to the transforming means 5, and on the basis of this, the image data S1 is transformed to provide processed image data S2. The processed image data S2 is reproduced as a print image K by the printing means 6.
    • 从感光材料F获得图像数据S1以及感光材料F的未曝光部分的密度Ds。基于该密度Ds,存储在存储装置3中的感光材料F的最佳特性曲线是 通过修改装置4修改以获得修改的特征曲线。 在存储装置3中,可以存储经过时间之后的多个特性曲线,并且可以从这些特性曲线获得修改的特性曲线。 修正特性曲线被输入到变换装置5,并且基于此,图像数据S1被变换以提供处理后的图像数据S2。 处理后的图像数据S2通过打印装置6被再现为打印图像K.
    • 9. 发明授权
    • Image processing method and system
    • 图像处理方法和系统
    • US06724942B1
    • 2004-04-20
    • US09577341
    • 2000-05-24
    • Hisao Arai
    • Hisao Arai
    • G06K940
    • G06T5/004
    • An original image signal made up of a plurality of image signal components each representing a pixel of an original image is processed to suppress the granularity of the original image and enhance the sharpness of the original image, and a final processed image signal is obtained. Processing for suppressing granularity and processing for enhancing sharpness are carried out separately on the original image signal to obtain a granularity-suppressed image signal and a sharpness-enhanced image signal. At least one intermediate processed image signal is obtained by operation based on at least the granularity-suppressed image signal and the sharpness-enhanced image signal, and, as the image signal component for each pixel of the final processed image signal, the image signal component for the corresponding pixel of an image signal selected from the intermediate processed image signals and the original image signal is taken according to an indicator value calculated on the basis of the granularity-suppressed image signal, the sharpness-enhanced image signal and the original image signal.
    • 处理由表示原始图像的像素的多个图像信号分量构成的原始图像信号,以抑制原始图像的粒度,并提高原始图像的清晰度,并获得最终处理的图像信号。 在原始图像信号上分别进行用于抑制粒度的处理和用于增强锐度的处理,以获得粒度抑制图像信号和锐度增强图像信号。 通过至少基于粒度抑制图像信号和锐度增强图像信号的操作获得至少一个中间处理图像信号,并且作为最终处理图像信号的每个像素的图像信号分量,图像信号分量 对于从中间处理图像信号中选择的图像信号的对应像素,并且根据基于粒度抑制图像信号计算的指标值,获取原始图像信号,锐度增强图像信号和原始图像信号 。
    • 10. 发明授权
    • Image processing method and apparatus
    • 图像处理方法和装置
    • US06445831B1
    • 2002-09-03
    • US09244950
    • 1999-02-10
    • Hisao Arai
    • Hisao Arai
    • G06K940
    • G06T5/004H04N1/409
    • Graininess suppression image processing is carried out on an original image signal, and a graininess suppression processing image signal is obtained from the graininess suppression image processing. Also, sharpness enhancement image processing is carried out on the original image signal, and a sharpness enhancement processing image signal is obtained from the sharpness enhancement image processing. Processing for obtaining a processed image signal is carried out in accordance with the graininess suppression processing image signal and the sharpness enhancement processing image signal. The processed image signal is obtained with operation processing carried out on image signal components of the graininess suppression processing image signal and the sharpness enhancement processing image signal, which image signal components represent corresponding pixels in two images represented by the graininess suppression processing image signal and the sharpness enhancement processing image signal.
    • 对原始图像信号进行纹理抑制图像处理,并且从颗粒度抑制图像处理获得粒度抑制处理图像信号。 此外,对原始图像信号进行锐度增强图像处理,并且从锐度增强图像处理获得锐度增强处理图像信号。 根据颗粒度抑制处理图像信号和锐度增强处理图像信号来执行用于获得处理图像信号的处理。 通过对颗粒度抑制处理图像信号和锐度增强处理图像信号的图像信号分量进行的处理执行处理的图像信号,该图像信号分量表示由颗粒度抑制处理图像信号表示的两个图像中的相应像素, 锐度增强处理图像信号。