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    Display device for displaying digital input image data using different filter segments for the lower and higher order bits
    1.
    发明授权
    Display device for displaying digital input image data using different filter segments for the lower and higher order bits 有权
    用于显示数字输入图像数据的显示装置，使用不同的滤波器段用于较低和较高位

    公开(公告)号：US06912017B1

    公开(公告)日：2005-06-28

    申请号：US09887665

    申请日：2000-01-12

    申请人： Koji Minami ,  Yoshiteru Suzuki ,  Kohei Teramoto ,  Hiroaki Sugiura ,  Shinsuke Shikama

    发明人： Koji Minami ,  Yoshiteru Suzuki ,  Kohei Teramoto ,  Hiroaki Sugiura ,  Shinsuke Shikama

    IPC分类号： H04N5/74 ,  G02B5/20 ,  G03B21/00 ,  G09F9/00 ,  G09G3/20 ,  G09G3/34 ,  G09G5/02 ,  H04N9/31 ,  H04N9/12 ,  H04N5/64

    CPC分类号： G09G3/3413 ,  G09G3/2077 ,  G09G5/02 ,  G09G2310/0235 ,  G09G2340/0428

    摘要： There is disclosed a display device using a color wheel having a color filter Cw, in addition to normal color filters corresponding to the three primary colors. The filter Cw has almost flat spectral transmission characteristics. Brightness information included in a color image signal is quantized with (n+m) bits. Information corresponding to the lower-order n bits is displayed by light transmitted through the filter Cw. Information corresponding to the upper-order n bits is displayed by light transmitted through the normal color filters. Only brightness information to which the human eye is visually sensitive is reproduced by the filter Cw having a lower transmissivity. This can eliminate a lack of the number of gray levels due to a constraint on the minimum switching speed of a light valve. Furthermore, the brightness little deteriorates.

    摘要翻译： 除了与三原色相对应的普通滤色器之外，还公开了使用具有滤色器Cw的色轮的显示装置。 滤波器Cw具有几乎平坦的频谱传输特性。 包含在彩色图像信号中的亮度信息用（n + m）位量化。 通过滤波器Cw传输的光显示与低阶n位对应的信息。 与通过普通滤色器透射的光显示与上位n位对应的信息。 仅通过具有较低透射率的滤光器Cw再现人眼视觉敏感的亮度信息。 这可以消除由于对光阀的最小切换速度的限制而导致的灰度级数的缺乏。 此外，亮度稍微恶化。

    Image display performing color reproduction using color filters
    2.
    发明授权
    Image display performing color reproduction using color filters 有权
    使用滤色片进行彩色再现的图像显示

    公开(公告)号：US06674489B1

    公开(公告)日：2004-01-06

    申请号：US09369310

    申请日：1999-08-06

    申请人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Kohei Teramoto ,  Shinsuke Shikama ,  Yoshiteru Suzuki

    发明人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Kohei Teramoto ,  Shinsuke Shikama ,  Yoshiteru Suzuki

    IPC分类号： H04N912

    CPC分类号： H04N9/3158 ,  G02B5/20 ,  G02B26/008 ,  H04N9/3114

    摘要： In an image display which reproduces a color image by using lights color-separated into four or more colors through color filters, the objects of the invention are to effectively utilize the energy of light from a light source and to reduce the effect that a slight shift of the spectral transmittance characteristics of the color filters exerts on the spectral distributions of the lights after color separated. In an image display having a light source and four or more kinds of color filters and for color-separating light emitted from the light source into four or more colors through the four or more kinds of color filters and reproducing a color image by using the color-separated lights, the spectral transmittance characteristics of the color filters are set so that the cutoff wavelengths of the four or more kinds of color filters exist in a wavelength region in which the spectral distributions obtained by multiplying the spectral emissivity characteristic of the light emitted from the light source by the color matching functions are smaller than the values obtained by multiplying the average values of the spectral distributions in the wavelength region from 380 to 780 nm by an integer.

    摘要翻译： 在通过使用通过滤色器分色为四种或更多种颜色的光再现彩色图像的图像显示器中，本发明的目的是有效地利用来自光源的光的能量，并且减少轻微偏移的影响 滤色器的光谱透射率特性对颜色分离后的光的光谱分布施加。 在具有光源和四种或更多种滤色器的图像显示器中，并且通过四种或更多种滤色器将从光源发射的光分色成四种或更多种颜色，并通过使用颜色再现彩色图像 分离的光，滤色器的光谱透射率特性被设定为使得四种或更多种滤色器的截止波长存在于通过将从...发射的光的光谱发射率特性相乘得到的光谱分布 通过颜色匹配功能的光源比通过将380至780nm的波长区域中的光谱分布的平均值乘以整数而获得的值小。

    Transparent screen and projection display apparatus
    3.
    发明申请
    Transparent screen and projection display apparatus 有权
    透明屏幕和投影显示设备

    公开(公告)号：US20050105177A1

    公开(公告)日：2005-05-19

    申请号：US10501580

    申请日：2002-11-26

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    IPC分类号： G03B21/10 ,  G03B21/60 ,  G03B21/62

    CPC分类号： G03B21/62 ,  G03B21/10 ,  G03B21/625

    摘要： A transparent screen is provided with a refraction/total reflection plate in a form of a Fresnel lens, the refraction/total reflection plate having a sawtooth light-incidence-side surface upon which light to be projected is incident, and a light-emitting-side surface via which the light to be projected exits, and an image formation/display plate for forming a projection image from the light that exits from the refraction/total reflection plate. A plurality of refraction slating surface portions each for refracting an incident ray of light to be projected towards the light-emitting-side surface of the refraction/total reflection plate, a plurality of transmission slating surface portions each for making an incident ray of light to be projected pass therethrough, and a plurality of total reflection slating surface portions each for reflecting an incident ray of light passing through one of the plurality of transmission slating surface portions towards the light-emitting-side surface of the refraction/total reflection plate being formed concentrically on the sawtooth light-incidence-side surface of the refraction/total reflection plate. The refraction/total reflection plate is formed of a transparent material in which no scattering particles are dispersedly disposed.

    摘要翻译： 透明屏幕设置有菲涅尔透镜形式的折射/全反射板，折射/全反射板具有入射光的锯齿光入射侧表面，并且发光 - 要投射的光的侧面出射的侧表面，以及用于从从折射/全反射板离开的光形成投影图像的图像形成/显示板。 多个折射台面部分，每个用于折射入射到所述折射/全反射板的发光侧表面的入射光线;多个透射板条表面部分，用于将入射光线 投射通过其中，并且形成多个全反射平板表面部分，每个全反射板条表面部分用于将穿过多个透射板条表面部分中的一个的入射光线朝向折射/全反射板的发光侧表面反射 同心地对折射/全反射板的锯齿光入射侧表面。 折射/全反射板由不散射散射颗粒的透明材料形成。

    Fresnel optical element and projection display device
    4.
    发明授权
    Fresnel optical element and projection display device 有权
    菲涅尔光学元件和投影显示装置

    公开(公告)号：US07242536B2

    公开(公告)日：2007-07-10

    申请号：US10545569

    申请日：2004-10-04

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Kohei Teramoto

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Kohei Teramoto

    IPC分类号： G02B3/08

    CPC分类号： G02B5/02 ,  G02B3/08 ,  G02B5/045 ,  G03B21/625

    摘要： Each of a plurality of Fresnel prisms 12 is formed so that a refracting surface 12 thereof includes a non-light incidence surface 12c upon which any ray of light emitted from a projector 1 is not directly incident because it is intercepted by another Fresnel prism 12, the non-light incidence surface having an angle τ′ with a reflecting surface 12b which is different from the prism apex angle τ of each of the plurality of Fresnel prisms. As a result, a ray of light reflected by the refracting surface 12a of each of the plurality of Fresnel prisms without passing through the refracting surface can be preventing from emerging, as unnecessary light, toward the viewer's line of sight.

    摘要翻译： 多个菲涅耳棱镜12中的每一个被形成为使得其折射表面12包括非投光表面12c，在那里从投影仪1发射的任何光线不会直接入射，因为它被另一菲涅尔棱镜12截取 ，非光入射表面具有角度τ'，其具有与多个菲涅耳棱镜中的每一个的棱镜顶角τ不同的反射表面12b。 结果，不会穿过折射表面的多个菲涅尔棱镜中的每一个的折射表面12a反射的光线可以防止作为不必要的光朝向观察者的视线而出现。

    Fresnel optical element and projection display device
    6.
    发明申请
    Fresnel optical element and projection display device 有权
    菲涅尔光学元件和投影显示装置

    公开(公告)号：US20060227433A1

    公开(公告)日：2006-10-12

    申请号：US10545569

    申请日：2004-10-04

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Kohei Teramoto

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Kohei Teramoto

    IPC分类号： G02B3/08

    CPC分类号： G02B5/02 ,  G02B3/08 ,  G02B5/045 ,  G03B21/625

    摘要： Each of a plurality of Fresnel prisms 12 is formed so that a refractive surface 12 thereof includes a non-light incidence surface 12c upon which any light ray emitted from a projector 1 is not directly incident because it is intercepted by another Fresnel prism 12, the non-light incidence surface having an angle τ′ with a reflective surface 12b which is different from the prism apex angle τ of each of the plurality of Fresnel prisms. As a result, a light ray reflected by the refractive surface 12a of each of the plurality of Fresnel prisms without passing through the refractive surface can be preventing from emerging, as unnecessary light, toward the viewer's line of sight.

    摘要翻译： 多个菲涅耳棱镜12中的每一个被形成为使得其折射表面12包括非投光表面12c，在那里从投影仪1发射的任何光线不被直接入射，因为它被另一菲涅尔棱镜12截取， 非光入射表面具有角度τ'，其具有与多个菲涅耳棱镜中的每一个的棱镜顶角τ不同的反射表面12b。 结果，不会穿过折射表面的多个菲涅尔棱镜中的每一个的折射表面12a反射的光线可以防止作为不必要的光朝向观察者的视线而出现。

    Transparent screen and projection display apparatus
    7.
    发明授权
    Transparent screen and projection display apparatus 有权
    透明屏幕和投影显示设备

    公开(公告)号：US07075718B2

    公开(公告)日：2006-07-11

    申请号：US10501580

    申请日：2002-11-26

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    IPC分类号： G03B27/60 ,  G03B21/56 ,  G02B27/10 ,  G02B3/08

    CPC分类号： G03B21/62 ,  G03B21/10 ,  G03B21/625

    摘要： A transparent screen includes a refraction/total reflection plate in a form of a Fresnel lens, the refraction/total reflection plate having a sawtooth surface upon which light is incident and another surface via which the light exits, and an image formation/display plate for forming a projection image from the light that exits from the refraction/total reflection plate. Refraction slating surface portions each for refracting incident light towards the other surface of the refraction/total reflection plate, transmission slating surface portions each for making incident light pass therethrough, and total reflection slating surface portions each for reflecting incident light passing through one transmission slating surface portion towards the other surface of the refraction/total reflection plate being formed concentrically on the sawtooth surface of the refraction/total reflection plate.

    摘要翻译： 透明屏幕包括菲涅耳透镜形式的折射/全反射板，折射/全反射板具有光入射的锯齿表面和光出射的另一表面，以及用于 从从折射/全反射板出射的光形成投影图像。 用于将入射光折射到折射/全反射板的另一个表面的折射板条表面部分，用于使入射光通过的透射板条表面部分和用于反射穿过一个透射板条表面的入射光的全反射板条表面部分 折射/全反射板的另一个表面的部分同心地形成在折射/全反射板的锯齿表面上。